diff --git a/Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml b/Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml new file mode 100644 index 000000000000..1e08648f5bc7 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/lg,sw43408.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LG SW43408 1080x2160 DSI panel + +maintainers: + - Caleb Connolly + +description: + This panel is used on the Pixel 3, it is a 60hz OLED panel which + required DSC (Display Stream Compression) and has rounded corners. + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + items: + - const: lg,sw43408 + + reg: true + port: true + vddi-supply: true + vpnl-supply: true + reset-gpios: true + +required: + - compatible + - vddi-supply + - vpnl-supply + - reset-gpios + +additionalProperties: false + +examples: + - | + #include + + dsi { + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "lg,sw43408"; + reg = <0>; + + vddi-supply = <&vreg_l14a_1p88>; + vpnl-supply = <&vreg_l28a_3p0>; + + reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>; + + port { + endpoint { + remote-endpoint = <&mdss_dsi0_out>; + }; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml index e0f6aa9a025c..931d98836e12 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml +++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml @@ -190,6 +190,8 @@ properties: - innolux,g121i1-l01 # Innolux Corporation 12.1" G121X1-L03 XGA (1024x768) TFT LCD panel - innolux,g121x1-l03 + # Innolux Corporation 12.1" G121XCE-L01 XGA (1024x768) TFT LCD panel + - innolux,g121xce-l01 # Innolux Corporation 11.6" WXGA (1366x768) TFT LCD panel - innolux,n116bca-ea1 # Innolux Corporation 11.6" WXGA (1366x768) TFT LCD panel diff --git a/Documentation/driver-api/dma-buf.rst b/Documentation/driver-api/dma-buf.rst index 0c153d79ccc4..29abf1eebf9f 100644 --- a/Documentation/driver-api/dma-buf.rst +++ b/Documentation/driver-api/dma-buf.rst @@ -77,7 +77,7 @@ consider though: the usual size discover pattern size = SEEK_END(0); SEEK_SET(0). Every other llseek operation will report -EINVAL. - If llseek on dma-buf FDs isn't support the kernel will report -ESPIPE for all + If llseek on dma-buf FDs isn't supported the kernel will report -ESPIPE for all cases. Userspace can use this to detect support for discovering the dma-buf size using llseek. diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst index 13d3627d8bc0..abfe220764e1 100644 --- a/Documentation/gpu/drm-kms.rst +++ b/Documentation/gpu/drm-kms.rst @@ -398,6 +398,21 @@ Plane Damage Tracking Functions Reference .. kernel-doc:: include/drm/drm_damage_helper.h :internal: +Plane Panic Feature +------------------- + +.. kernel-doc:: drivers/gpu/drm/drm_panic.c + :doc: overview + +Plane Panic Functions Reference +------------------------------- + +.. kernel-doc:: include/drm/drm_panic.h + :internal: + +.. kernel-doc:: drivers/gpu/drm/drm_panic.c + :export: + Display Modes Function Reference ================================ @@ -496,6 +511,13 @@ addition to the one mentioned above: * An IGT test must be submitted where reasonable. +For historical reasons, non-standard, driver-specific properties exist. If a KMS +driver wants to add support for one of those properties, the requirements for +new properties apply where possible. Additionally, the documented behavior must +match the de facto semantics of the existing property to ensure compatibility. +Developers of the driver that first added the property should help with those +tasks and must ACK the documented behavior if possible. + Property Types and Blob Property Support ---------------------------------------- diff --git a/MAINTAINERS b/MAINTAINERS index 6ea4035e6b92..309c0fd1e371 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6764,6 +6764,14 @@ S: Maintained F: Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml F: drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c +DRM DRIVER FOR LG SW43408 PANELS +M: Sumit Semwal +M: Caleb Connolly +S: Maintained +T: git git://anongit.freedesktop.org/drm/drm-misc +F: Documentation/devicetree/bindings/display/panel/lg,sw43408.yaml +F: drivers/gpu/drm/panel/panel-lg-sw43408.c + DRM DRIVER FOR LOGICVC DISPLAY CONTROLLER M: Paul Kocialkowski S: Supported diff --git a/drivers/accel/qaic/Makefile b/drivers/accel/qaic/Makefile index 2cadcc1baa0e..35e883515629 100644 --- a/drivers/accel/qaic/Makefile +++ b/drivers/accel/qaic/Makefile @@ -10,6 +10,7 @@ qaic-y := \ qaic_control.o \ qaic_data.o \ qaic_drv.o \ - qaic_timesync.o + qaic_timesync.o \ + sahara.o qaic-$(CONFIG_DEBUG_FS) += qaic_debugfs.o diff --git a/drivers/accel/qaic/qaic_debugfs.h b/drivers/accel/qaic/qaic_debugfs.h index ea3fd1a88405..05e74f84cf9f 100644 --- a/drivers/accel/qaic/qaic_debugfs.h +++ b/drivers/accel/qaic/qaic_debugfs.h @@ -13,8 +13,8 @@ int qaic_bootlog_register(void); void qaic_bootlog_unregister(void); void qaic_debugfs_init(struct qaic_drm_device *qddev); #else -int qaic_bootlog_register(void) { return 0; } -void qaic_bootlog_unregister(void) {} -void qaic_debugfs_init(struct qaic_drm_device *qddev) {} +static inline int qaic_bootlog_register(void) { return 0; } +static inline void qaic_bootlog_unregister(void) {} +static inline void qaic_debugfs_init(struct qaic_drm_device *qddev) {} #endif /* CONFIG_DEBUG_FS */ #endif /* __QAIC_DEBUGFS_H__ */ diff --git a/drivers/accel/qaic/qaic_drv.c b/drivers/accel/qaic/qaic_drv.c index f072edb74f22..580b29ed1902 100644 --- a/drivers/accel/qaic/qaic_drv.c +++ b/drivers/accel/qaic/qaic_drv.c @@ -30,6 +30,7 @@ #include "qaic.h" #include "qaic_debugfs.h" #include "qaic_timesync.h" +#include "sahara.h" MODULE_IMPORT_NS(DMA_BUF); @@ -644,6 +645,12 @@ static int __init qaic_init(void) goto free_pci; } + ret = sahara_register(); + if (ret) { + pr_debug("qaic: sahara_register failed %d\n", ret); + goto free_mhi; + } + ret = qaic_timesync_init(); if (ret) pr_debug("qaic: qaic_timesync_init failed %d\n", ret); @@ -654,6 +661,8 @@ static int __init qaic_init(void) return 0; +free_mhi: + mhi_driver_unregister(&qaic_mhi_driver); free_pci: pci_unregister_driver(&qaic_pci_driver); return ret; @@ -679,6 +688,7 @@ static void __exit qaic_exit(void) link_up = true; qaic_bootlog_unregister(); qaic_timesync_deinit(); + sahara_unregister(); mhi_driver_unregister(&qaic_mhi_driver); pci_unregister_driver(&qaic_pci_driver); } diff --git a/drivers/accel/qaic/sahara.c b/drivers/accel/qaic/sahara.c new file mode 100644 index 000000000000..bf94bbab6be5 --- /dev/null +++ b/drivers/accel/qaic/sahara.c @@ -0,0 +1,449 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "sahara.h" + +#define SAHARA_HELLO_CMD 0x1 /* Min protocol version 1.0 */ +#define SAHARA_HELLO_RESP_CMD 0x2 /* Min protocol version 1.0 */ +#define SAHARA_READ_DATA_CMD 0x3 /* Min protocol version 1.0 */ +#define SAHARA_END_OF_IMAGE_CMD 0x4 /* Min protocol version 1.0 */ +#define SAHARA_DONE_CMD 0x5 /* Min protocol version 1.0 */ +#define SAHARA_DONE_RESP_CMD 0x6 /* Min protocol version 1.0 */ +#define SAHARA_RESET_CMD 0x7 /* Min protocol version 1.0 */ +#define SAHARA_RESET_RESP_CMD 0x8 /* Min protocol version 1.0 */ +#define SAHARA_MEM_DEBUG_CMD 0x9 /* Min protocol version 2.0 */ +#define SAHARA_MEM_READ_CMD 0xa /* Min protocol version 2.0 */ +#define SAHARA_CMD_READY_CMD 0xb /* Min protocol version 2.1 */ +#define SAHARA_SWITCH_MODE_CMD 0xc /* Min protocol version 2.1 */ +#define SAHARA_EXECUTE_CMD 0xd /* Min protocol version 2.1 */ +#define SAHARA_EXECUTE_RESP_CMD 0xe /* Min protocol version 2.1 */ +#define SAHARA_EXECUTE_DATA_CMD 0xf /* Min protocol version 2.1 */ +#define SAHARA_MEM_DEBUG64_CMD 0x10 /* Min protocol version 2.5 */ +#define SAHARA_MEM_READ64_CMD 0x11 /* Min protocol version 2.5 */ +#define SAHARA_READ_DATA64_CMD 0x12 /* Min protocol version 2.8 */ +#define SAHARA_RESET_STATE_CMD 0x13 /* Min protocol version 2.9 */ +#define SAHARA_WRITE_DATA_CMD 0x14 /* Min protocol version 3.0 */ + +#define SAHARA_PACKET_MAX_SIZE 0xffffU /* MHI_MAX_MTU */ +#define SAHARA_TRANSFER_MAX_SIZE 0x80000 +#define SAHARA_NUM_TX_BUF DIV_ROUND_UP(SAHARA_TRANSFER_MAX_SIZE,\ + SAHARA_PACKET_MAX_SIZE) +#define SAHARA_IMAGE_ID_NONE U32_MAX + +#define SAHARA_VERSION 2 +#define SAHARA_SUCCESS 0 + +#define SAHARA_MODE_IMAGE_TX_PENDING 0x0 +#define SAHARA_MODE_IMAGE_TX_COMPLETE 0x1 +#define SAHARA_MODE_MEMORY_DEBUG 0x2 +#define SAHARA_MODE_COMMAND 0x3 + +#define SAHARA_HELLO_LENGTH 0x30 +#define SAHARA_READ_DATA_LENGTH 0x14 +#define SAHARA_END_OF_IMAGE_LENGTH 0x10 +#define SAHARA_DONE_LENGTH 0x8 +#define SAHARA_RESET_LENGTH 0x8 + +struct sahara_packet { + __le32 cmd; + __le32 length; + + union { + struct { + __le32 version; + __le32 version_compat; + __le32 max_length; + __le32 mode; + } hello; + struct { + __le32 version; + __le32 version_compat; + __le32 status; + __le32 mode; + } hello_resp; + struct { + __le32 image; + __le32 offset; + __le32 length; + } read_data; + struct { + __le32 image; + __le32 status; + } end_of_image; + }; +}; + +struct sahara_context { + struct sahara_packet *tx[SAHARA_NUM_TX_BUF]; + struct sahara_packet *rx; + struct work_struct work; + struct mhi_device *mhi_dev; + const char **image_table; + u32 table_size; + u32 active_image_id; + const struct firmware *firmware; +}; + +static const char *aic100_image_table[] = { + [1] = "qcom/aic100/fw1.bin", + [2] = "qcom/aic100/fw2.bin", + [4] = "qcom/aic100/fw4.bin", + [5] = "qcom/aic100/fw5.bin", + [6] = "qcom/aic100/fw6.bin", + [8] = "qcom/aic100/fw8.bin", + [9] = "qcom/aic100/fw9.bin", + [10] = "qcom/aic100/fw10.bin", +}; + +static int sahara_find_image(struct sahara_context *context, u32 image_id) +{ + int ret; + + if (image_id == context->active_image_id) + return 0; + + if (context->active_image_id != SAHARA_IMAGE_ID_NONE) { + dev_err(&context->mhi_dev->dev, "image id %d is not valid as %d is active\n", + image_id, context->active_image_id); + return -EINVAL; + } + + if (image_id >= context->table_size || !context->image_table[image_id]) { + dev_err(&context->mhi_dev->dev, "request for unknown image: %d\n", image_id); + return -EINVAL; + } + + /* + * This image might be optional. The device may continue without it. + * Only the device knows. Suppress error messages that could suggest an + * a problem when we were actually able to continue. + */ + ret = firmware_request_nowarn(&context->firmware, + context->image_table[image_id], + &context->mhi_dev->dev); + if (ret) { + dev_dbg(&context->mhi_dev->dev, "request for image id %d / file %s failed %d\n", + image_id, context->image_table[image_id], ret); + return ret; + } + + context->active_image_id = image_id; + + return 0; +} + +static void sahara_release_image(struct sahara_context *context) +{ + if (context->active_image_id != SAHARA_IMAGE_ID_NONE) + release_firmware(context->firmware); + context->active_image_id = SAHARA_IMAGE_ID_NONE; +} + +static void sahara_send_reset(struct sahara_context *context) +{ + int ret; + + context->tx[0]->cmd = cpu_to_le32(SAHARA_RESET_CMD); + context->tx[0]->length = cpu_to_le32(SAHARA_RESET_LENGTH); + + ret = mhi_queue_buf(context->mhi_dev, DMA_TO_DEVICE, context->tx[0], + SAHARA_RESET_LENGTH, MHI_EOT); + if (ret) + dev_err(&context->mhi_dev->dev, "Unable to send reset response %d\n", ret); +} + +static void sahara_hello(struct sahara_context *context) +{ + int ret; + + dev_dbg(&context->mhi_dev->dev, + "HELLO cmd received. length:%d version:%d version_compat:%d max_length:%d mode:%d\n", + le32_to_cpu(context->rx->length), + le32_to_cpu(context->rx->hello.version), + le32_to_cpu(context->rx->hello.version_compat), + le32_to_cpu(context->rx->hello.max_length), + le32_to_cpu(context->rx->hello.mode)); + + if (le32_to_cpu(context->rx->length) != SAHARA_HELLO_LENGTH) { + dev_err(&context->mhi_dev->dev, "Malformed hello packet - length %d\n", + le32_to_cpu(context->rx->length)); + return; + } + if (le32_to_cpu(context->rx->hello.version) != SAHARA_VERSION) { + dev_err(&context->mhi_dev->dev, "Unsupported hello packet - version %d\n", + le32_to_cpu(context->rx->hello.version)); + return; + } + + if (le32_to_cpu(context->rx->hello.mode) != SAHARA_MODE_IMAGE_TX_PENDING && + le32_to_cpu(context->rx->hello.mode) != SAHARA_MODE_IMAGE_TX_COMPLETE) { + dev_err(&context->mhi_dev->dev, "Unsupported hello packet - mode %d\n", + le32_to_cpu(context->rx->hello.mode)); + return; + } + + context->tx[0]->cmd = cpu_to_le32(SAHARA_HELLO_RESP_CMD); + context->tx[0]->length = cpu_to_le32(SAHARA_HELLO_LENGTH); + context->tx[0]->hello_resp.version = cpu_to_le32(SAHARA_VERSION); + context->tx[0]->hello_resp.version_compat = cpu_to_le32(SAHARA_VERSION); + context->tx[0]->hello_resp.status = cpu_to_le32(SAHARA_SUCCESS); + context->tx[0]->hello_resp.mode = context->rx->hello_resp.mode; + + ret = mhi_queue_buf(context->mhi_dev, DMA_TO_DEVICE, context->tx[0], + SAHARA_HELLO_LENGTH, MHI_EOT); + if (ret) + dev_err(&context->mhi_dev->dev, "Unable to send hello response %d\n", ret); +} + +static void sahara_read_data(struct sahara_context *context) +{ + u32 image_id, data_offset, data_len, pkt_data_len; + int ret; + int i; + + dev_dbg(&context->mhi_dev->dev, + "READ_DATA cmd received. length:%d image:%d offset:%d data_length:%d\n", + le32_to_cpu(context->rx->length), + le32_to_cpu(context->rx->read_data.image), + le32_to_cpu(context->rx->read_data.offset), + le32_to_cpu(context->rx->read_data.length)); + + if (le32_to_cpu(context->rx->length) != SAHARA_READ_DATA_LENGTH) { + dev_err(&context->mhi_dev->dev, "Malformed read_data packet - length %d\n", + le32_to_cpu(context->rx->length)); + return; + } + + image_id = le32_to_cpu(context->rx->read_data.image); + data_offset = le32_to_cpu(context->rx->read_data.offset); + data_len = le32_to_cpu(context->rx->read_data.length); + + ret = sahara_find_image(context, image_id); + if (ret) { + sahara_send_reset(context); + return; + } + + /* + * Image is released when the device is done with it via + * SAHARA_END_OF_IMAGE_CMD. sahara_send_reset() will either cause the + * device to retry the operation with a modification, or decide to be + * done with the image and trigger SAHARA_END_OF_IMAGE_CMD. + * release_image() is called from SAHARA_END_OF_IMAGE_CMD. processing + * and is not needed here on error. + */ + + if (data_len > SAHARA_TRANSFER_MAX_SIZE) { + dev_err(&context->mhi_dev->dev, "Malformed read_data packet - data len %d exceeds max xfer size %d\n", + data_len, SAHARA_TRANSFER_MAX_SIZE); + sahara_send_reset(context); + return; + } + + if (data_offset >= context->firmware->size) { + dev_err(&context->mhi_dev->dev, "Malformed read_data packet - data offset %d exceeds file size %zu\n", + data_offset, context->firmware->size); + sahara_send_reset(context); + return; + } + + if (size_add(data_offset, data_len) > context->firmware->size) { + dev_err(&context->mhi_dev->dev, "Malformed read_data packet - data offset %d and length %d exceeds file size %zu\n", + data_offset, data_len, context->firmware->size); + sahara_send_reset(context); + return; + } + + for (i = 0; i < SAHARA_NUM_TX_BUF && data_len; ++i) { + pkt_data_len = min(data_len, SAHARA_PACKET_MAX_SIZE); + + memcpy(context->tx[i], &context->firmware->data[data_offset], pkt_data_len); + + data_offset += pkt_data_len; + data_len -= pkt_data_len; + + ret = mhi_queue_buf(context->mhi_dev, DMA_TO_DEVICE, + context->tx[i], pkt_data_len, + !data_len ? MHI_EOT : MHI_CHAIN); + if (ret) { + dev_err(&context->mhi_dev->dev, "Unable to send read_data response %d\n", + ret); + return; + } + } +} + +static void sahara_end_of_image(struct sahara_context *context) +{ + int ret; + + dev_dbg(&context->mhi_dev->dev, + "END_OF_IMAGE cmd received. length:%d image:%d status:%d\n", + le32_to_cpu(context->rx->length), + le32_to_cpu(context->rx->end_of_image.image), + le32_to_cpu(context->rx->end_of_image.status)); + + if (le32_to_cpu(context->rx->length) != SAHARA_END_OF_IMAGE_LENGTH) { + dev_err(&context->mhi_dev->dev, "Malformed end_of_image packet - length %d\n", + le32_to_cpu(context->rx->length)); + return; + } + + if (context->active_image_id != SAHARA_IMAGE_ID_NONE && + le32_to_cpu(context->rx->end_of_image.image) != context->active_image_id) { + dev_err(&context->mhi_dev->dev, "Malformed end_of_image packet - image %d is not the active image\n", + le32_to_cpu(context->rx->end_of_image.image)); + return; + } + + sahara_release_image(context); + + if (le32_to_cpu(context->rx->end_of_image.status)) + return; + + context->tx[0]->cmd = cpu_to_le32(SAHARA_DONE_CMD); + context->tx[0]->length = cpu_to_le32(SAHARA_DONE_LENGTH); + + ret = mhi_queue_buf(context->mhi_dev, DMA_TO_DEVICE, context->tx[0], + SAHARA_DONE_LENGTH, MHI_EOT); + if (ret) + dev_dbg(&context->mhi_dev->dev, "Unable to send done response %d\n", ret); +} + +static void sahara_processing(struct work_struct *work) +{ + struct sahara_context *context = container_of(work, struct sahara_context, work); + int ret; + + switch (le32_to_cpu(context->rx->cmd)) { + case SAHARA_HELLO_CMD: + sahara_hello(context); + break; + case SAHARA_READ_DATA_CMD: + sahara_read_data(context); + break; + case SAHARA_END_OF_IMAGE_CMD: + sahara_end_of_image(context); + break; + case SAHARA_DONE_RESP_CMD: + /* Intentional do nothing as we don't need to exit an app */ + break; + default: + dev_err(&context->mhi_dev->dev, "Unknown command %d\n", + le32_to_cpu(context->rx->cmd)); + break; + } + + ret = mhi_queue_buf(context->mhi_dev, DMA_FROM_DEVICE, context->rx, + SAHARA_PACKET_MAX_SIZE, MHI_EOT); + if (ret) + dev_err(&context->mhi_dev->dev, "Unable to requeue rx buf %d\n", ret); +} + +static int sahara_mhi_probe(struct mhi_device *mhi_dev, const struct mhi_device_id *id) +{ + struct sahara_context *context; + int ret; + int i; + + context = devm_kzalloc(&mhi_dev->dev, sizeof(*context), GFP_KERNEL); + if (!context) + return -ENOMEM; + + context->rx = devm_kzalloc(&mhi_dev->dev, SAHARA_PACKET_MAX_SIZE, GFP_KERNEL); + if (!context->rx) + return -ENOMEM; + + /* + * AIC100 defines SAHARA_TRANSFER_MAX_SIZE as the largest value it + * will request for READ_DATA. This is larger than + * SAHARA_PACKET_MAX_SIZE, and we need 9x SAHARA_PACKET_MAX_SIZE to + * cover SAHARA_TRANSFER_MAX_SIZE. When the remote side issues a + * READ_DATA, it requires a transfer of the exact size requested. We + * can use MHI_CHAIN to link multiple buffers into a single transfer + * but the remote side will not consume the buffers until it sees an + * EOT, thus we need to allocate enough buffers to put in the tx fifo + * to cover an entire READ_DATA request of the max size. + */ + for (i = 0; i < SAHARA_NUM_TX_BUF; ++i) { + context->tx[i] = devm_kzalloc(&mhi_dev->dev, SAHARA_PACKET_MAX_SIZE, GFP_KERNEL); + if (!context->tx[i]) + return -ENOMEM; + } + + context->mhi_dev = mhi_dev; + INIT_WORK(&context->work, sahara_processing); + context->image_table = aic100_image_table; + context->table_size = ARRAY_SIZE(aic100_image_table); + context->active_image_id = SAHARA_IMAGE_ID_NONE; + dev_set_drvdata(&mhi_dev->dev, context); + + ret = mhi_prepare_for_transfer(mhi_dev); + if (ret) + return ret; + + ret = mhi_queue_buf(mhi_dev, DMA_FROM_DEVICE, context->rx, SAHARA_PACKET_MAX_SIZE, MHI_EOT); + if (ret) { + mhi_unprepare_from_transfer(mhi_dev); + return ret; + } + + return 0; +} + +static void sahara_mhi_remove(struct mhi_device *mhi_dev) +{ + struct sahara_context *context = dev_get_drvdata(&mhi_dev->dev); + + cancel_work_sync(&context->work); + sahara_release_image(context); + mhi_unprepare_from_transfer(mhi_dev); +} + +static void sahara_mhi_ul_xfer_cb(struct mhi_device *mhi_dev, struct mhi_result *mhi_result) +{ +} + +static void sahara_mhi_dl_xfer_cb(struct mhi_device *mhi_dev, struct mhi_result *mhi_result) +{ + struct sahara_context *context = dev_get_drvdata(&mhi_dev->dev); + + if (!mhi_result->transaction_status) + schedule_work(&context->work); +} + +static const struct mhi_device_id sahara_mhi_match_table[] = { + { .chan = "QAIC_SAHARA", }, + {}, +}; + +static struct mhi_driver sahara_mhi_driver = { + .id_table = sahara_mhi_match_table, + .remove = sahara_mhi_remove, + .probe = sahara_mhi_probe, + .ul_xfer_cb = sahara_mhi_ul_xfer_cb, + .dl_xfer_cb = sahara_mhi_dl_xfer_cb, + .driver = { + .name = "sahara", + }, +}; + +int sahara_register(void) +{ + return mhi_driver_register(&sahara_mhi_driver); +} + +void sahara_unregister(void) +{ + mhi_driver_unregister(&sahara_mhi_driver); +} diff --git a/drivers/accel/qaic/sahara.h b/drivers/accel/qaic/sahara.h new file mode 100644 index 000000000000..640208acc0d1 --- /dev/null +++ b/drivers/accel/qaic/sahara.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. */ + +#ifndef __SAHARA_H__ +#define __SAHARA_H__ + +int sahara_register(void); +void sahara_unregister(void); +#endif /* __SAHARA_H__ */ diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 8fe5aa67b167..8892bc701a66 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -35,12 +35,35 @@ static inline int is_dma_buf_file(struct file *); -struct dma_buf_list { - struct list_head head; - struct mutex lock; -}; +#if IS_ENABLED(CONFIG_DEBUG_FS) +static DEFINE_MUTEX(debugfs_list_mutex); +static LIST_HEAD(debugfs_list); -static struct dma_buf_list db_list; +static void __dma_buf_debugfs_list_add(struct dma_buf *dmabuf) +{ + mutex_lock(&debugfs_list_mutex); + list_add(&dmabuf->list_node, &debugfs_list); + mutex_unlock(&debugfs_list_mutex); +} + +static void __dma_buf_debugfs_list_del(struct dma_buf *dmabuf) +{ + if (!dmabuf) + return; + + mutex_lock(&debugfs_list_mutex); + list_del(&dmabuf->list_node); + mutex_unlock(&debugfs_list_mutex); +} +#else +static void __dma_buf_debugfs_list_add(struct dma_buf *dmabuf) +{ +} + +static void __dma_buf_debugfs_list_del(struct file *file) +{ +} +#endif static char *dmabuffs_dname(struct dentry *dentry, char *buffer, int buflen) { @@ -89,17 +112,10 @@ static void dma_buf_release(struct dentry *dentry) static int dma_buf_file_release(struct inode *inode, struct file *file) { - struct dma_buf *dmabuf; - if (!is_dma_buf_file(file)) return -EINVAL; - dmabuf = file->private_data; - if (dmabuf) { - mutex_lock(&db_list.lock); - list_del(&dmabuf->list_node); - mutex_unlock(&db_list.lock); - } + __dma_buf_debugfs_list_del(file->private_data); return 0; } @@ -672,9 +688,7 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info) file->f_path.dentry->d_fsdata = dmabuf; dmabuf->file = file; - mutex_lock(&db_list.lock); - list_add(&dmabuf->list_node, &db_list.head); - mutex_unlock(&db_list.lock); + __dma_buf_debugfs_list_add(dmabuf); return dmabuf; @@ -1611,7 +1625,7 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused) size_t size = 0; int ret; - ret = mutex_lock_interruptible(&db_list.lock); + ret = mutex_lock_interruptible(&debugfs_list_mutex); if (ret) return ret; @@ -1620,7 +1634,7 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused) seq_printf(s, "%-8s\t%-8s\t%-8s\t%-8s\texp_name\t%-8s\tname\n", "size", "flags", "mode", "count", "ino"); - list_for_each_entry(buf_obj, &db_list.head, list_node) { + list_for_each_entry(buf_obj, &debugfs_list, list_node) { ret = dma_resv_lock_interruptible(buf_obj->resv, NULL); if (ret) @@ -1657,11 +1671,11 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused) seq_printf(s, "\nTotal %d objects, %zu bytes\n", count, size); - mutex_unlock(&db_list.lock); + mutex_unlock(&debugfs_list_mutex); return 0; error_unlock: - mutex_unlock(&db_list.lock); + mutex_unlock(&debugfs_list_mutex); return ret; } @@ -1718,8 +1732,6 @@ static int __init dma_buf_init(void) if (IS_ERR(dma_buf_mnt)) return PTR_ERR(dma_buf_mnt); - mutex_init(&db_list.lock); - INIT_LIST_HEAD(&db_list.head); dma_buf_init_debugfs(); return 0; } diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 3914aaf443a8..959b19a04101 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -104,6 +104,38 @@ config DRM_KMS_HELPER help CRTC helpers for KMS drivers. +config DRM_PANIC + bool "Display a user-friendly message when a kernel panic occurs" + depends on DRM && !FRAMEBUFFER_CONSOLE + select DRM_KMS_HELPER + select FONT_SUPPORT + help + Enable a drm panic handler, which will display a user-friendly message + when a kernel panic occurs. It's useful when using a user-space + console instead of fbcon. + It will only work if your graphic driver supports this feature. + To support Hi-DPI Display, you can enable bigger fonts like + FONT_TER16x32 + +config DRM_PANIC_FOREGROUND_COLOR + hex "Drm panic screen foreground color, in RGB" + depends on DRM_PANIC + default 0xffffff + +config DRM_PANIC_BACKGROUND_COLOR + hex "Drm panic screen background color, in RGB" + depends on DRM_PANIC + default 0x000000 + +config DRM_PANIC_DEBUG + bool "Add a debug fs entry to trigger drm_panic" + depends on DRM_PANIC && DEBUG_FS + help + Add dri/[device]/drm_panic_plane_x in the kernel debugfs, to force the + panic handler to write the panic message to this plane scanout buffer. + This is unsafe and should not be enabled on a production build. + If in doubt, say "N". + config DRM_DEBUG_DP_MST_TOPOLOGY_REFS bool "Enable refcount backtrace history in the DP MST helpers" depends on STACKTRACE_SUPPORT diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index a73c04d2d7a3..f9ca4f8fa6c5 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -88,6 +88,7 @@ drm-$(CONFIG_DRM_PRIVACY_SCREEN) += \ drm_privacy_screen.o \ drm_privacy_screen_x86.o drm-$(CONFIG_DRM_ACCEL) += ../../accel/drm_accel.o +drm-$(CONFIG_DRM_PANIC) += drm_panic.o obj-$(CONFIG_DRM) += drm.o obj-$(CONFIG_DRM_PANEL_ORIENTATION_QUIRKS) += drm_panel_orientation_quirks.o diff --git a/drivers/gpu/drm/arm/malidp_mw.c b/drivers/gpu/drm/arm/malidp_mw.c index 626709bec6f5..2577f0cef8fc 100644 --- a/drivers/gpu/drm/arm/malidp_mw.c +++ b/drivers/gpu/drm/arm/malidp_mw.c @@ -72,7 +72,10 @@ static void malidp_mw_connector_reset(struct drm_connector *connector) __drm_atomic_helper_connector_destroy_state(connector->state); kfree(connector->state); - __drm_atomic_helper_connector_reset(connector, &mw_state->base); + connector->state = NULL; + + if (mw_state) + __drm_atomic_helper_connector_reset(connector, &mw_state->base); } static enum drm_connector_status diff --git a/drivers/gpu/drm/ast/ast_ddc.c b/drivers/gpu/drm/ast/ast_ddc.c index b7718084422f..29cf5d157f34 100644 --- a/drivers/gpu/drm/ast/ast_ddc.c +++ b/drivers/gpu/drm/ast/ast_ddc.c @@ -21,12 +21,22 @@ * of the Software. */ +#include +#include + #include #include #include "ast_ddc.h" #include "ast_drv.h" +struct ast_ddc { + struct ast_device *ast; + + struct i2c_algo_bit_data bit; + struct i2c_adapter adapter; +}; + static void ast_ddc_algo_bit_data_setsda(void *data, int state) { struct ast_ddc *ddc = data; @@ -132,7 +142,7 @@ static void ast_ddc_release(struct drm_device *dev, void *res) i2c_del_adapter(&ddc->adapter); } -struct ast_ddc *ast_ddc_create(struct ast_device *ast) +struct i2c_adapter *ast_ddc_create(struct ast_device *ast) { struct drm_device *dev = &ast->base; struct ast_ddc *ddc; @@ -145,15 +155,7 @@ struct ast_ddc *ast_ddc_create(struct ast_device *ast) return ERR_PTR(-ENOMEM); ddc->ast = ast; - adapter = &ddc->adapter; - adapter->owner = THIS_MODULE; - adapter->dev.parent = dev->dev; - i2c_set_adapdata(adapter, ddc); - snprintf(adapter->name, sizeof(adapter->name), "AST DDC bus"); - bit = &ddc->bit; - bit->udelay = 20; - bit->timeout = 2; bit->data = ddc; bit->setsda = ast_ddc_algo_bit_data_setsda; bit->setscl = ast_ddc_algo_bit_data_setscl; @@ -161,8 +163,16 @@ struct ast_ddc *ast_ddc_create(struct ast_device *ast) bit->getscl = ast_ddc_algo_bit_data_getscl; bit->pre_xfer = ast_ddc_algo_bit_data_pre_xfer; bit->post_xfer = ast_ddc_algo_bit_data_post_xfer; + bit->udelay = 20; + bit->timeout = usecs_to_jiffies(2200); + adapter = &ddc->adapter; + adapter->owner = THIS_MODULE; adapter->algo_data = bit; + adapter->dev.parent = dev->dev; + snprintf(adapter->name, sizeof(adapter->name), "AST DDC bus"); + i2c_set_adapdata(adapter, ddc); + ret = i2c_bit_add_bus(adapter); if (ret) { drm_err(dev, "Failed to register bit i2c\n"); @@ -173,5 +183,5 @@ struct ast_ddc *ast_ddc_create(struct ast_device *ast) if (ret) return ERR_PTR(ret); - return ddc; + return &ddc->adapter; } diff --git a/drivers/gpu/drm/ast/ast_ddc.h b/drivers/gpu/drm/ast/ast_ddc.h index 08f3994e09cc..85c93edc9ae1 100644 --- a/drivers/gpu/drm/ast/ast_ddc.h +++ b/drivers/gpu/drm/ast/ast_ddc.h @@ -3,18 +3,9 @@ #ifndef __AST_DDC_H__ #define __AST_DDC_H__ -#include -#include - struct ast_device; +struct i2c_adapter; -struct ast_ddc { - struct ast_device *ast; - - struct i2c_adapter adapter; - struct i2c_algo_bit_data bit; -}; - -struct ast_ddc *ast_ddc_create(struct ast_device *ast); +struct i2c_adapter *ast_ddc_create(struct ast_device *ast); #endif diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index bb9b66aba9ee..6695af70768f 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include @@ -701,12 +702,29 @@ static void ast_primary_plane_helper_atomic_disable(struct drm_plane *plane, ast_set_index_reg_mask(ast, AST_IO_VGASRI, 0x1, 0xdf, 0x20); } +static int ast_primary_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb) +{ + struct ast_plane *ast_plane = to_ast_plane(plane); + + if (plane->state && plane->state->fb && ast_plane->vaddr) { + sb->format = plane->state->fb->format; + sb->width = plane->state->fb->width; + sb->height = plane->state->fb->height; + sb->pitch[0] = plane->state->fb->pitches[0]; + iosys_map_set_vaddr_iomem(&sb->map[0], ast_plane->vaddr); + return 0; + } + return -ENODEV; +} + static const struct drm_plane_helper_funcs ast_primary_plane_helper_funcs = { DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, .atomic_check = ast_primary_plane_helper_atomic_check, .atomic_update = ast_primary_plane_helper_atomic_update, .atomic_enable = ast_primary_plane_helper_atomic_enable, .atomic_disable = ast_primary_plane_helper_atomic_disable, + .get_scanout_buffer = ast_primary_plane_helper_get_scanout_buffer, }; static const struct drm_plane_funcs ast_primary_plane_funcs = { @@ -1360,7 +1378,7 @@ static const struct drm_connector_funcs ast_vga_connector_funcs = { static int ast_vga_connector_init(struct drm_device *dev, struct drm_connector *connector) { struct ast_device *ast = to_ast_device(dev); - struct ast_ddc *ddc; + struct i2c_adapter *ddc; int ret; ddc = ast_ddc_create(ast); @@ -1371,7 +1389,7 @@ static int ast_vga_connector_init(struct drm_device *dev, struct drm_connector * } ret = drm_connector_init_with_ddc(dev, connector, &ast_vga_connector_funcs, - DRM_MODE_CONNECTOR_VGA, &ddc->adapter); + DRM_MODE_CONNECTOR_VGA, ddc); if (ret) return ret; @@ -1429,7 +1447,7 @@ static const struct drm_connector_funcs ast_sil164_connector_funcs = { static int ast_sil164_connector_init(struct drm_device *dev, struct drm_connector *connector) { struct ast_device *ast = to_ast_device(dev); - struct ast_ddc *ddc; + struct i2c_adapter *ddc; int ret; ddc = ast_ddc_create(ast); @@ -1440,7 +1458,7 @@ static int ast_sil164_connector_init(struct drm_device *dev, struct drm_connecto } ret = drm_connector_init_with_ddc(dev, connector, &ast_sil164_connector_funcs, - DRM_MODE_CONNECTOR_DVII, &ddc->adapter); + DRM_MODE_CONNECTOR_DVII, ddc); if (ret) return ret; diff --git a/drivers/gpu/drm/bridge/analogix/Kconfig b/drivers/gpu/drm/bridge/analogix/Kconfig index 12bfea53bf24..5b564fded6d6 100644 --- a/drivers/gpu/drm/bridge/analogix/Kconfig +++ b/drivers/gpu/drm/bridge/analogix/Kconfig @@ -28,7 +28,7 @@ config DRM_ANALOGIX_ANX78XX config DRM_ANALOGIX_DP tristate - depends on DRM + depends on DRM_DISPLAY_HELPER config DRM_ANALOGIX_ANX7625 tristate "Analogix Anx7625 MIPI to DP interface support" diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 9d96d28d6fe8..59e9ad349969 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -2066,10 +2066,8 @@ static int anx7625_setup_dsi_device(struct anx7625_data *ctx) }; host = of_find_mipi_dsi_host_by_node(ctx->pdata.mipi_host_node); - if (!host) { - DRM_DEV_ERROR(dev, "fail to find dsi host.\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "fail to find dsi host.\n"); dsi = devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { @@ -2471,15 +2469,22 @@ static void anx7625_bridge_atomic_disable(struct drm_bridge *bridge, mutex_unlock(&ctx->aux_lock); } +static void +anx7625_audio_update_connector_status(struct anx7625_data *ctx, + enum drm_connector_status status); + static enum drm_connector_status anx7625_bridge_detect(struct drm_bridge *bridge) { struct anx7625_data *ctx = bridge_to_anx7625(bridge); struct device *dev = ctx->dev; + enum drm_connector_status status; DRM_DEV_DEBUG_DRIVER(dev, "drm bridge detect\n"); - return anx7625_sink_detect(ctx); + status = anx7625_sink_detect(ctx); + anx7625_audio_update_connector_status(ctx, status); + return status; } static const struct drm_edid *anx7625_bridge_edid_read(struct drm_bridge *bridge, diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c index 82d23e4df09e..ff3284b6b1a3 100644 --- a/drivers/gpu/drm/bridge/chipone-icn6211.c +++ b/drivers/gpu/drm/bridge/chipone-icn6211.c @@ -563,10 +563,8 @@ static int chipone_dsi_host_attach(struct chipone *icn) host = of_find_mipi_dsi_host_by_node(host_node); of_node_put(host_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); dsi = mipi_dsi_device_register_full(host, &info); if (IS_ERR(dsi)) { diff --git a/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c b/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c index 89fc432ac611..13bc570c5473 100644 --- a/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c +++ b/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c @@ -104,13 +104,11 @@ static int imx8mp_dw_hdmi_probe(struct platform_device *pdev) return 0; } -static int imx8mp_dw_hdmi_remove(struct platform_device *pdev) +static void imx8mp_dw_hdmi_remove(struct platform_device *pdev) { struct imx8mp_hdmi *hdmi = platform_get_drvdata(pdev); dw_hdmi_remove(hdmi->dw_hdmi); - - return 0; } static int __maybe_unused imx8mp_dw_hdmi_pm_suspend(struct device *dev) @@ -140,7 +138,7 @@ MODULE_DEVICE_TABLE(of, imx8mp_dw_hdmi_of_table); static struct platform_driver imx8mp_dw_hdmi_platform_driver = { .probe = imx8mp_dw_hdmi_probe, - .remove = imx8mp_dw_hdmi_remove, + .remove_new = imx8mp_dw_hdmi_remove, .driver = { .name = "imx8mp-dw-hdmi-tx", .of_match_table = imx8mp_dw_hdmi_of_table, diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index 4b2ae27f0a57..1a9defa15663 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -494,10 +494,8 @@ static int lt8912_attach_dsi(struct lt8912 *lt) }; host = of_find_mipi_dsi_host_by_node(lt->host_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); dsi = devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index a9c7e2b07ea1..b99fe87ec738 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -761,10 +761,8 @@ static struct mipi_dsi_device *lt9611_attach_dsi(struct lt9611 *lt9611, int ret; host = of_find_mipi_dsi_host_by_node(dsi_node); - if (!host) { - dev_err(lt9611->dev, "failed to find dsi host\n"); - return ERR_PTR(-EPROBE_DEFER); - } + if (!host) + return ERR_PTR(dev_err_probe(lt9611->dev, -EPROBE_DEFER, "failed to find dsi host\n")); dsi = devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c index f4f593ad8f79..ab702471f3ab 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c @@ -266,10 +266,8 @@ static struct mipi_dsi_device *lt9611uxc_attach_dsi(struct lt9611uxc *lt9611uxc, int ret; host = of_find_mipi_dsi_host_by_node(dsi_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return ERR_PTR(-EPROBE_DEFER); - } + if (!host) + return ERR_PTR(dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n")); dsi = devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { diff --git a/drivers/gpu/drm/bridge/tc358775.c b/drivers/gpu/drm/bridge/tc358775.c index 90a89d70d832..fea4f00a20f8 100644 --- a/drivers/gpu/drm/bridge/tc358775.c +++ b/drivers/gpu/drm/bridge/tc358775.c @@ -610,10 +610,8 @@ static int tc_attach_host(struct tc_data *tc) }; host = of_find_mipi_dsi_host_by_node(tc->host_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); dsi = devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { diff --git a/drivers/gpu/drm/bridge/ti-dlpc3433.c b/drivers/gpu/drm/bridge/ti-dlpc3433.c index ca3348109bcd..6b559e071301 100644 --- a/drivers/gpu/drm/bridge/ti-dlpc3433.c +++ b/drivers/gpu/drm/bridge/ti-dlpc3433.c @@ -319,12 +319,11 @@ static int dlpc_host_attach(struct dlpc *dlpc) .channel = 0, .node = NULL, }; + int ret; host = of_find_mipi_dsi_host_by_node(dlpc->host_node); - if (!host) { - DRM_DEV_ERROR(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); dlpc->dsi = mipi_dsi_device_register_full(host, &info); if (IS_ERR(dlpc->dsi)) { @@ -336,7 +335,11 @@ static int dlpc_host_attach(struct dlpc *dlpc) dlpc->dsi->format = MIPI_DSI_FMT_RGB565; dlpc->dsi->lanes = dlpc->dsi_lanes; - return devm_mipi_dsi_attach(dev, dlpc->dsi); + ret = devm_mipi_dsi_attach(dev, dlpc->dsi); + if (ret) + DRM_DEV_ERROR(dev, "failed to attach dsi host\n"); + + return ret; } static int dlpc3433_probe(struct i2c_client *client) @@ -367,10 +370,8 @@ static int dlpc3433_probe(struct i2c_client *client) drm_bridge_add(&dlpc->bridge); ret = dlpc_host_attach(dlpc); - if (ret) { - DRM_DEV_ERROR(dev, "failed to attach dsi host\n"); + if (ret) goto err_remove_bridge; - } return 0; diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 39ef0a6addeb..fb97b51b38f1 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include #include @@ -3016,6 +3017,7 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, bool stall) { int i, ret; + unsigned long flags; struct drm_connector *connector; struct drm_connector_state *old_conn_state, *new_conn_state; struct drm_crtc *crtc; @@ -3099,6 +3101,7 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, } } + drm_panic_lock(state->dev, flags); for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { WARN_ON(plane->state != old_plane_state); @@ -3108,6 +3111,7 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, state->planes[i].state = old_plane_state; plane->state = new_plane_state; } + drm_panic_unlock(state->dev, flags); for_each_oldnew_private_obj_in_state(state, obj, old_obj_state, new_obj_state, i) { WARN_ON(obj->state != old_obj_state); diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 29d4940188d4..fc16fddee5c5 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -145,10 +145,10 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, &state->mode, blob->data); if (ret) { drm_dbg_atomic(crtc->dev, - "[CRTC:%d:%s] invalid mode (ret=%d, status=%s):\n", + "[CRTC:%d:%s] invalid mode (%s, %pe): " DRM_MODE_FMT "\n", crtc->base.id, crtc->name, - ret, drm_get_mode_status_name(state->mode.status)); - drm_mode_debug_printmodeline(&state->mode); + drm_get_mode_status_name(state->mode.status), + ERR_PTR(ret), DRM_MODE_ARG(&state->mode)); return -EINVAL; } diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c index 871e4e2129d6..cb29a957a900 100644 --- a/drivers/gpu/drm/drm_client_modeset.c +++ b/drivers/gpu/drm/drm_client_modeset.c @@ -242,8 +242,10 @@ static void drm_client_connectors_enabled(struct drm_connector **connectors, for (i = 0; i < connector_count; i++) { connector = connectors[i]; enabled[i] = drm_connector_enabled(connector, true); - DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id, - connector->display_info.non_desktop ? "non desktop" : str_yes_no(enabled[i])); + drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] enabled? %s\n", + connector->base.id, connector->name, + connector->display_info.non_desktop ? + "non desktop" : str_yes_no(enabled[i])); any_enabled |= enabled[i]; } @@ -303,7 +305,7 @@ static bool drm_client_target_cloned(struct drm_device *dev, } if (can_clone) { - DRM_DEBUG_KMS("can clone using command line\n"); + drm_dbg_kms(dev, "can clone using command line\n"); return true; } @@ -332,15 +334,16 @@ static bool drm_client_target_cloned(struct drm_device *dev, kfree(dmt_mode); if (can_clone) { - DRM_DEBUG_KMS("can clone using 1024x768\n"); + drm_dbg_kms(dev, "can clone using 1024x768\n"); return true; } fail: - DRM_INFO("kms: can't enable cloning when we probably wanted to.\n"); + drm_info(dev, "kms: can't enable cloning when we probably wanted to.\n"); return false; } -static int drm_client_get_tile_offsets(struct drm_connector **connectors, +static int drm_client_get_tile_offsets(struct drm_device *dev, + struct drm_connector **connectors, unsigned int connector_count, struct drm_display_mode **modes, struct drm_client_offset *offsets, @@ -357,8 +360,9 @@ static int drm_client_get_tile_offsets(struct drm_connector **connectors, continue; if (!modes[i] && (h_idx || v_idx)) { - DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i, - connector->base.id); + drm_dbg_kms(dev, + "[CONNECTOR:%d:%s] no modes for connector tiled %d\n", + connector->base.id, connector->name, i); continue; } if (connector->tile_h_loc < h_idx) @@ -369,11 +373,12 @@ static int drm_client_get_tile_offsets(struct drm_connector **connectors, } offsets[idx].x = hoffset; offsets[idx].y = voffset; - DRM_DEBUG_KMS("returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx); + drm_dbg_kms(dev, "returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx); return 0; } -static bool drm_client_target_preferred(struct drm_connector **connectors, +static bool drm_client_target_preferred(struct drm_device *dev, + struct drm_connector **connectors, unsigned int connector_count, struct drm_display_mode **modes, struct drm_client_offset *offsets, @@ -423,17 +428,19 @@ retry: * find the tile offsets for this pass - need to find * all tiles left and above */ - drm_client_get_tile_offsets(connectors, connector_count, modes, offsets, i, + drm_client_get_tile_offsets(dev, connectors, connector_count, + modes, offsets, i, connector->tile_h_loc, connector->tile_v_loc); } - DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n", - connector->base.id); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] looking for cmdline mode\n", + connector->base.id, connector->name); /* got for command line mode first */ modes[i] = drm_connector_pick_cmdline_mode(connector); if (!modes[i]) { - DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n", - connector->base.id, connector->tile_group ? connector->tile_group->id : 0); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] looking for preferred mode, tile %d\n", + connector->base.id, connector->name, + connector->tile_group ? connector->tile_group->id : 0); modes[i] = drm_connector_has_preferred_mode(connector, width, height); } /* No preferred modes, pick one off the list */ @@ -455,16 +462,18 @@ retry: (connector->tile_h_loc == 0 && connector->tile_v_loc == 0 && !drm_connector_get_tiled_mode(connector))) { - DRM_DEBUG_KMS("Falling back to non tiled mode on Connector %d\n", - connector->base.id); + drm_dbg_kms(dev, + "[CONNECTOR:%d:%s] Falling back to non-tiled mode\n", + connector->base.id, connector->name); modes[i] = drm_connector_fallback_non_tiled_mode(connector); } else { modes[i] = drm_connector_get_tiled_mode(connector); } } - DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : - "none"); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Found mode %s\n", + connector->base.id, connector->name, + modes[i] ? modes[i]->name : "none"); conn_configured |= BIT_ULL(i); } @@ -585,7 +594,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client, if (!drm_drv_uses_atomic_modeset(dev)) return false; - if (WARN_ON(count <= 0)) + if (drm_WARN_ON(dev, count <= 0)) return false; save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL); @@ -624,26 +633,26 @@ retry: num_connectors_detected++; if (!enabled[i]) { - DRM_DEBUG_KMS("connector %s not enabled, skipping\n", - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] not enabled, skipping\n", + connector->base.id, connector->name); conn_configured |= BIT(i); continue; } if (connector->force == DRM_FORCE_OFF) { - DRM_DEBUG_KMS("connector %s is disabled by user, skipping\n", - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] disabled by user, skipping\n", + connector->base.id, connector->name); enabled[i] = false; continue; } encoder = connector->state->best_encoder; - if (!encoder || WARN_ON(!connector->state->crtc)) { + if (!encoder || drm_WARN_ON(dev, !connector->state->crtc)) { if (connector->force > DRM_FORCE_OFF) goto bail; - DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n", - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] has no encoder or crtc, skipping\n", + connector->base.id, connector->name); enabled[i] = false; conn_configured |= BIT(i); continue; @@ -660,28 +669,30 @@ retry: */ for (j = 0; j < count; j++) { if (crtcs[j] == new_crtc) { - DRM_DEBUG_KMS("fallback: cloned configuration\n"); + drm_dbg_kms(dev, "fallback: cloned configuration\n"); goto bail; } } - DRM_DEBUG_KMS("looking for cmdline mode on connector %s\n", - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] looking for cmdline mode\n", + connector->base.id, connector->name); /* go for command line mode first */ modes[i] = drm_connector_pick_cmdline_mode(connector); /* try for preferred next */ if (!modes[i]) { - DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n", - connector->name, connector->has_tile); + drm_dbg_kms(dev, + "[CONNECTOR:%d:%s] looking for preferred mode, has tile: %s\n", + connector->base.id, connector->name, + str_yes_no(connector->has_tile)); modes[i] = drm_connector_has_preferred_mode(connector, width, height); } /* No preferred mode marked by the EDID? Are there any modes? */ if (!modes[i] && !list_empty(&connector->modes)) { - DRM_DEBUG_KMS("using first mode listed on connector %s\n", - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] using first listed mode\n", + connector->base.id, connector->name); modes[i] = list_first_entry(&connector->modes, struct drm_display_mode, head); @@ -700,8 +711,8 @@ retry: * This is crtc->mode and not crtc->state->mode for the * fastboot check to work correctly. */ - DRM_DEBUG_KMS("looking for current mode on connector %s\n", - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] looking for current mode\n", + connector->base.id, connector->name); modes[i] = &connector->state->crtc->mode; } /* @@ -710,18 +721,18 @@ retry: */ if (connector->has_tile && num_tiled_conns < connector->num_h_tile * connector->num_v_tile) { - DRM_DEBUG_KMS("Falling back to non tiled mode on Connector %d\n", - connector->base.id); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Falling back to non-tiled mode\n", + connector->base.id, connector->name); modes[i] = drm_connector_fallback_non_tiled_mode(connector); } crtcs[i] = new_crtc; - DRM_DEBUG_KMS("connector %s on [CRTC:%d:%s]: %dx%d%s\n", - connector->name, - connector->state->crtc->base.id, - connector->state->crtc->name, - modes[i]->hdisplay, modes[i]->vdisplay, - modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" : ""); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] on [CRTC:%d:%s]: %dx%d%s\n", + connector->base.id, connector->name, + connector->state->crtc->base.id, + connector->state->crtc->name, + modes[i]->hdisplay, modes[i]->vdisplay, + modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" : ""); fallback = false; conn_configured |= BIT(i); @@ -737,15 +748,15 @@ retry: */ if (num_connectors_enabled != num_connectors_detected && num_connectors_enabled < dev->mode_config.num_crtc) { - DRM_DEBUG_KMS("fallback: Not all outputs enabled\n"); - DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled, - num_connectors_detected); + drm_dbg_kms(dev, "fallback: Not all outputs enabled\n"); + drm_dbg_kms(dev, "Enabled: %i, detected: %i\n", + num_connectors_enabled, num_connectors_detected); fallback = true; } if (fallback) { bail: - DRM_DEBUG_KMS("Not using firmware configuration\n"); + drm_dbg_kms(dev, "Not using firmware configuration\n"); memcpy(enabled, save_enabled, count); ret = false; } @@ -782,7 +793,7 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, int i, ret = 0; bool *enabled; - DRM_DEBUG_KMS("\n"); + drm_dbg_kms(dev, "\n"); if (!width) width = dev->mode_config.max_width; @@ -813,7 +824,6 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL); enabled = kcalloc(connector_count, sizeof(bool), GFP_KERNEL); if (!crtcs || !modes || !enabled || !offsets) { - DRM_ERROR("Memory allocation failed\n"); ret = -ENOMEM; goto out; } @@ -824,7 +834,7 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, for (i = 0; i < connector_count; i++) total_modes_count += connectors[i]->funcs->fill_modes(connectors[i], width, height); if (!total_modes_count) - DRM_DEBUG_KMS("No connectors reported connected with modes\n"); + drm_dbg_kms(dev, "No connectors reported connected with modes\n"); drm_client_connectors_enabled(connectors, connector_count, enabled); if (!drm_client_firmware_config(client, connectors, connector_count, crtcs, @@ -835,12 +845,12 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, if (!drm_client_target_cloned(dev, connectors, connector_count, modes, offsets, enabled, width, height) && - !drm_client_target_preferred(connectors, connector_count, modes, + !drm_client_target_preferred(dev, connectors, connector_count, modes, offsets, enabled, width, height)) - DRM_ERROR("Unable to find initial modes\n"); + drm_err(dev, "Unable to find initial modes\n"); - DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", - width, height); + drm_dbg_kms(dev, "picking CRTCs for %dx%d config\n", + width, height); drm_client_pick_crtcs(client, connectors, connector_count, crtcs, modes, 0, width, height); @@ -858,11 +868,12 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc); struct drm_connector *connector = connectors[i]; - DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n", - mode->name, crtc->base.id, offset->x, offset->y); + drm_dbg_kms(dev, "[CRTC:%d:%s] desired mode %s set (%d,%d)\n", + crtc->base.id, crtc->name, + mode->name, offset->x, offset->y); - if (WARN_ON_ONCE(modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS || - (dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1))) { + if (drm_WARN_ON_ONCE(dev, modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS || + (dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1))) { ret = -EINVAL; break; } diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 82c665d3e74b..483969b84a30 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -716,10 +716,10 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, crtc = drm_crtc_find(dev, file_priv, crtc_req->crtc_id); if (!crtc) { - DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); + drm_dbg_kms(dev, "Unknown CRTC ID %d\n", crtc_req->crtc_id); return -ENOENT; } - DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); + drm_dbg_kms(dev, "[CRTC:%d:%s]\n", crtc->base.id, crtc->name); plane = crtc->primary; @@ -742,7 +742,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, old_fb = plane->fb; if (!old_fb) { - DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); + drm_dbg_kms(dev, "CRTC doesn't have current FB\n"); ret = -EINVAL; goto out; } @@ -753,8 +753,8 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, } else { fb = drm_framebuffer_lookup(dev, file_priv, crtc_req->fb_id); if (!fb) { - DRM_DEBUG_KMS("Unknown FB ID%d\n", - crtc_req->fb_id); + drm_dbg_kms(dev, "Unknown FB ID%d\n", + crtc_req->fb_id); ret = -ENOENT; goto out; } @@ -767,7 +767,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, } if (!file_priv->aspect_ratio_allowed && (crtc_req->mode.flags & DRM_MODE_FLAG_PIC_AR_MASK) != DRM_MODE_FLAG_PIC_AR_NONE) { - DRM_DEBUG_KMS("Unexpected aspect-ratio flag bits\n"); + drm_dbg_kms(dev, "Unexpected aspect-ratio flag bits\n"); ret = -EINVAL; goto out; } @@ -775,9 +775,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, ret = drm_mode_convert_umode(dev, mode, &crtc_req->mode); if (ret) { - DRM_DEBUG_KMS("Invalid mode (ret=%d, status=%s)\n", - ret, drm_get_mode_status_name(mode->status)); - drm_mode_debug_printmodeline(mode); + drm_dbg_kms(dev, "Invalid mode (%s, %pe): " DRM_MODE_FMT "\n", + drm_get_mode_status_name(mode->status), + ERR_PTR(ret), DRM_MODE_ARG(mode)); goto out; } @@ -793,9 +793,8 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, fb->format->format, fb->modifier); if (ret) { - DRM_DEBUG_KMS("Invalid pixel format %p4cc, modifier 0x%llx\n", - &fb->format->format, - fb->modifier); + drm_dbg_kms(dev, "Invalid pixel format %p4cc, modifier 0x%llx\n", + &fb->format->format, fb->modifier); goto out; } } @@ -808,14 +807,14 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, } if (crtc_req->count_connectors == 0 && mode) { - DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); + drm_dbg_kms(dev, "Count connectors is 0 but mode set\n"); ret = -EINVAL; goto out; } if (crtc_req->count_connectors > 0 && (!mode || !fb)) { - DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", - crtc_req->count_connectors); + drm_dbg_kms(dev, "Count connectors is %d but no mode or fb set\n", + crtc_req->count_connectors); ret = -EINVAL; goto out; } @@ -847,14 +846,13 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, connector = drm_connector_lookup(dev, file_priv, out_id); if (!connector) { - DRM_DEBUG_KMS("Connector id %d unknown\n", - out_id); + drm_dbg_kms(dev, "Connector id %d unknown\n", + out_id); ret = -ENOENT; goto out; } - DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", - connector->base.id, - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s]\n", + connector->base.id, connector->name); connector_set[i] = connector; num_connectors++; diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 2dafc39a27cb..0955f1c385dd 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -110,15 +110,15 @@ bool drm_helper_encoder_in_use(struct drm_encoder *encoder) struct drm_connector_list_iter conn_iter; struct drm_device *dev = encoder->dev; - WARN_ON(drm_drv_uses_atomic_modeset(dev)); + drm_WARN_ON(dev, drm_drv_uses_atomic_modeset(dev)); /* * We can expect this mutex to be locked if we are not panicking. * Locking is currently fubar in the panic handler. */ if (!oops_in_progress) { - WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); - WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); + drm_WARN_ON(dev, !mutex_is_locked(&dev->mode_config.mutex)); + drm_WARN_ON(dev, !drm_modeset_is_locked(&dev->mode_config.connection_mutex)); } @@ -150,14 +150,14 @@ bool drm_helper_crtc_in_use(struct drm_crtc *crtc) struct drm_encoder *encoder; struct drm_device *dev = crtc->dev; - WARN_ON(drm_drv_uses_atomic_modeset(dev)); + drm_WARN_ON(dev, drm_drv_uses_atomic_modeset(dev)); /* * We can expect this mutex to be locked if we are not panicking. * Locking is currently fubar in the panic handler. */ if (!oops_in_progress) - WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); + drm_WARN_ON(dev, !mutex_is_locked(&dev->mode_config.mutex)); drm_for_each_encoder(encoder, dev) if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder)) @@ -230,7 +230,7 @@ static void __drm_helper_disable_unused_functions(struct drm_device *dev) */ void drm_helper_disable_unused_functions(struct drm_device *dev) { - WARN_ON(drm_drv_uses_atomic_modeset(dev)); + drm_WARN_ON(dev, drm_drv_uses_atomic_modeset(dev)); drm_modeset_lock_all(dev); __drm_helper_disable_unused_functions(dev); @@ -294,7 +294,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, struct drm_encoder *encoder; bool ret = true; - WARN_ON(drm_drv_uses_atomic_modeset(dev)); + drm_WARN_ON(dev, drm_drv_uses_atomic_modeset(dev)); drm_warn_on_modeset_not_all_locked(dev); @@ -338,7 +338,8 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, if (encoder_funcs->mode_fixup) { if (!(ret = encoder_funcs->mode_fixup(encoder, mode, adjusted_mode))) { - DRM_DEBUG_KMS("Encoder fixup failed\n"); + drm_dbg_kms(dev, "[ENCODER:%d:%s] mode fixup failed\n", + encoder->base.id, encoder->name); goto done; } } @@ -347,11 +348,12 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, if (crtc_funcs->mode_fixup) { if (!(ret = crtc_funcs->mode_fixup(crtc, mode, adjusted_mode))) { - DRM_DEBUG_KMS("CRTC fixup failed\n"); + drm_dbg_kms(dev, "[CRTC:%d:%s] mode fixup failed\n", + crtc->base.id, crtc->name); goto done; } } - DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); + drm_dbg_kms(dev, "[CRTC:%d:%s]\n", crtc->base.id, crtc->name); drm_mode_copy(&crtc->hwmode, adjusted_mode); @@ -390,8 +392,8 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, if (!encoder_funcs) continue; - DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%s]\n", - encoder->base.id, encoder->name, mode->name); + drm_dbg_kms(dev, "[ENCODER:%d:%s] set [MODE:%s]\n", + encoder->base.id, encoder->name, mode->name); if (encoder_funcs->mode_set) encoder_funcs->mode_set(encoder, mode, adjusted_mode); } @@ -503,7 +505,7 @@ drm_connector_get_single_encoder(struct drm_connector *connector) { struct drm_encoder *encoder; - WARN_ON(hweight32(connector->possible_encoders) > 1); + drm_WARN_ON(connector->dev, hweight32(connector->possible_encoders) > 1); drm_connector_for_each_possible_encoder(connector, encoder) return encoder; @@ -564,8 +566,6 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, int ret; int i; - DRM_DEBUG_KMS("\n"); - BUG_ON(!set); BUG_ON(!set->crtc); BUG_ON(!set->crtc->helper_private); @@ -577,19 +577,22 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, crtc_funcs = set->crtc->helper_private; dev = set->crtc->dev; - WARN_ON(drm_drv_uses_atomic_modeset(dev)); + + drm_dbg_kms(dev, "\n"); + + drm_WARN_ON(dev, drm_drv_uses_atomic_modeset(dev)); if (!set->mode) set->fb = NULL; if (set->fb) { - DRM_DEBUG_KMS("[CRTC:%d:%s] [FB:%d] #connectors=%d (x y) (%i %i)\n", - set->crtc->base.id, set->crtc->name, - set->fb->base.id, - (int)set->num_connectors, set->x, set->y); + drm_dbg_kms(dev, "[CRTC:%d:%s] [FB:%d] #connectors=%d (x y) (%i %i)\n", + set->crtc->base.id, set->crtc->name, + set->fb->base.id, + (int)set->num_connectors, set->x, set->y); } else { - DRM_DEBUG_KMS("[CRTC:%d:%s] [NOFB]\n", - set->crtc->base.id, set->crtc->name); + drm_dbg_kms(dev, "[CRTC:%d:%s] [NOFB]\n", + set->crtc->base.id, set->crtc->name); drm_crtc_helper_disable(set->crtc); return 0; } @@ -639,7 +642,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, if (set->crtc->primary->fb != set->fb) { /* If we have no fb then treat it as a full mode set */ if (set->crtc->primary->fb == NULL) { - DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); + drm_dbg_kms(dev, "[CRTC:%d:%s] no fb, full mode set\n", + set->crtc->base.id, set->crtc->name); mode_changed = true; } else if (set->fb->format != set->crtc->primary->fb->format) { mode_changed = true; @@ -651,9 +655,10 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, fb_changed = true; if (!drm_mode_equal(set->mode, &set->crtc->mode)) { - DRM_DEBUG_KMS("modes are different, full mode set\n"); - drm_mode_debug_printmodeline(&set->crtc->mode); - drm_mode_debug_printmodeline(set->mode); + drm_dbg_kms(dev, "[CRTC:%d:%s] modes are different, full mode set:\n", + set->crtc->base.id, set->crtc->name); + drm_dbg_kms(dev, DRM_MODE_FMT "\n", DRM_MODE_ARG(&set->crtc->mode)); + drm_dbg_kms(dev, DRM_MODE_FMT "\n", DRM_MODE_ARG(set->mode)); mode_changed = true; } @@ -687,7 +692,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, fail = 1; if (connector->dpms != DRM_MODE_DPMS_ON) { - DRM_DEBUG_KMS("connector dpms not on, full mode switch\n"); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] DPMS not on, full mode switch\n", + connector->base.id, connector->name); mode_changed = true; } @@ -696,7 +702,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, } if (new_encoder != connector->encoder) { - DRM_DEBUG_KMS("encoder changed, full mode switch\n"); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] encoder changed, full mode switch\n", + connector->base.id, connector->name); mode_changed = true; /* If the encoder is reused for another connector, then * the appropriate crtc will be set later. @@ -737,17 +744,18 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, goto fail; } if (new_crtc != connector->encoder->crtc) { - DRM_DEBUG_KMS("crtc changed, full mode switch\n"); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] CRTC changed, full mode switch\n", + connector->base.id, connector->name); mode_changed = true; connector->encoder->crtc = new_crtc; } if (new_crtc) { - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d:%s]\n", - connector->base.id, connector->name, - new_crtc->base.id, new_crtc->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] to [CRTC:%d:%s]\n", + connector->base.id, connector->name, + new_crtc->base.id, new_crtc->name); } else { - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", - connector->base.id, connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] to [NOCRTC]\n", + connector->base.id, connector->name); } } drm_connector_list_iter_end(&conn_iter); @@ -758,23 +766,23 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set, if (mode_changed) { if (drm_helper_crtc_in_use(set->crtc)) { - DRM_DEBUG_KMS("attempting to set mode from" - " userspace\n"); - drm_mode_debug_printmodeline(set->mode); + drm_dbg_kms(dev, "[CRTC:%d:%s] attempting to set mode from userspace: " DRM_MODE_FMT "\n", + set->crtc->base.id, set->crtc->name, DRM_MODE_ARG(set->mode)); set->crtc->primary->fb = set->fb; if (!drm_crtc_helper_set_mode(set->crtc, set->mode, set->x, set->y, save_set.fb)) { - DRM_ERROR("failed to set mode on [CRTC:%d:%s]\n", - set->crtc->base.id, set->crtc->name); + drm_err(dev, "[CRTC:%d:%s] failed to set mode\n", + set->crtc->base.id, set->crtc->name); set->crtc->primary->fb = save_set.fb; ret = -EINVAL; goto fail; } - DRM_DEBUG_KMS("Setting connector DPMS state to on\n"); + drm_dbg_kms(dev, "[CRTC:%d:%s] Setting connector DPMS state to on\n", + set->crtc->base.id, set->crtc->name); for (i = 0; i < set->num_connectors; i++) { - DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id, - set->connectors[i]->name); + drm_dbg_kms(dev, "\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id, + set->connectors[i]->name); set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON); } } @@ -823,7 +831,7 @@ fail: if (mode_changed && !drm_crtc_helper_set_mode(save_set.crtc, save_set.mode, save_set.x, save_set.y, save_set.fb)) - DRM_ERROR("failed to restore config after modeset failure\n"); + drm_err(dev, "failed to restore config after modeset failure\n"); kfree(save_connector_encoders); kfree(save_encoder_crtcs); @@ -905,7 +913,7 @@ int drm_helper_connector_dpms(struct drm_connector *connector, int mode) struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; int old_dpms, encoder_dpms = DRM_MODE_DPMS_OFF; - WARN_ON(drm_drv_uses_atomic_modeset(connector->dev)); + drm_WARN_ON(connector->dev, drm_drv_uses_atomic_modeset(connector->dev)); if (mode == connector->dpms) return 0; @@ -980,7 +988,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev) int encoder_dpms; bool ret; - WARN_ON(drm_drv_uses_atomic_modeset(dev)); + drm_WARN_ON(dev, drm_drv_uses_atomic_modeset(dev)); drm_modeset_lock_all(dev); drm_for_each_crtc(crtc, dev) { @@ -993,7 +1001,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev) /* Restoring the old config should never fail! */ if (ret == false) - DRM_ERROR("failed to set mode on crtc %p\n", crtc); + drm_err(dev, "failed to set mode on crtc %p\n", crtc); /* Turn off outputs that were already powered off */ if (drm_helper_choose_crtc_dpms(crtc)) { diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h index 0c693229a1c9..25aaae937ceb 100644 --- a/drivers/gpu/drm/drm_crtc_internal.h +++ b/drivers/gpu/drm/drm_crtc_internal.h @@ -43,12 +43,14 @@ enum drm_color_range; enum drm_connector_force; enum drm_mode_status; +struct cea_sad; struct drm_atomic_state; struct drm_bridge; struct drm_connector; struct drm_crtc; struct drm_device; struct drm_display_mode; +struct drm_edid; struct drm_file; struct drm_framebuffer; struct drm_mode_create_dumb; @@ -297,6 +299,10 @@ void drm_mode_fixup_1366x768(struct drm_display_mode *mode); int drm_edid_override_show(struct drm_connector *connector, struct seq_file *m); int drm_edid_override_set(struct drm_connector *connector, const void *edid, size_t size); int drm_edid_override_reset(struct drm_connector *connector); +const u8 *drm_edid_find_extension(const struct drm_edid *drm_edid, + int ext_id, int *ext_index); +void drm_edid_cta_sad_get(const struct cea_sad *cta_sad, u8 *sad); +void drm_edid_cta_sad_set(struct cea_sad *cta_sad, const u8 *sad); /* drm_edid_load.c */ #ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE diff --git a/drivers/gpu/drm/drm_displayid.c b/drivers/gpu/drm/drm_displayid.c index 9edc111be7ee..9d01d762801f 100644 --- a/drivers/gpu/drm/drm_displayid.c +++ b/drivers/gpu/drm/drm_displayid.c @@ -3,10 +3,12 @@ * Copyright © 2021 Intel Corporation */ -#include #include #include +#include "drm_crtc_internal.h" +#include "drm_displayid_internal.h" + static const struct displayid_header * displayid_get_header(const u8 *displayid, int length, int index) { @@ -53,9 +55,10 @@ static const u8 *drm_find_displayid_extension(const struct drm_edid *drm_edid, int *length, int *idx, int *ext_index) { - const u8 *displayid = drm_find_edid_extension(drm_edid, DISPLAYID_EXT, ext_index); const struct displayid_header *base; + const u8 *displayid; + displayid = drm_edid_find_extension(drm_edid, DISPLAYID_EXT, ext_index); if (!displayid) return NULL; diff --git a/include/drm/drm_displayid.h b/drivers/gpu/drm/drm_displayid_internal.h similarity index 98% rename from include/drm/drm_displayid.h rename to drivers/gpu/drm/drm_displayid_internal.h index 566497eeb3b8..56fd3bb0a779 100644 --- a/include/drm/drm_displayid.h +++ b/drivers/gpu/drm/drm_displayid_internal.h @@ -19,8 +19,9 @@ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ -#ifndef DRM_DISPLAYID_H -#define DRM_DISPLAYID_H + +#ifndef __DRM_DISPLAYID_INTERNAL_H__ +#define __DRM_DISPLAYID_INTERNAL_H__ #include #include diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 243cacb3575c..535b624d4c9d 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include @@ -638,6 +639,7 @@ static int drm_dev_init(struct drm_device *dev, mutex_init(&dev->filelist_mutex); mutex_init(&dev->clientlist_mutex); mutex_init(&dev->master_mutex); + raw_spin_lock_init(&dev->mode_config.panic_lock); ret = drmm_add_action_or_reset(dev, drm_dev_init_release, NULL); if (ret) @@ -943,6 +945,7 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags) if (ret) goto err_unload; } + drm_panic_register(dev); DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n", driver->name, driver->major, driver->minor, @@ -987,6 +990,8 @@ void drm_dev_unregister(struct drm_device *dev) { dev->registered = false; + drm_panic_unregister(dev); + drm_client_dev_unregister(dev); if (drm_core_check_feature(dev, DRIVER_MODESET)) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index ea77577a3786..513590931cc5 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -29,16 +29,17 @@ */ #include +#include #include #include #include #include #include #include +#include #include #include -#include #include #include #include @@ -46,6 +47,7 @@ #include #include "drm_crtc_internal.h" +#include "drm_displayid_internal.h" #include "drm_internal.h" static int oui(u8 first, u8 second, u8 third) @@ -1818,36 +1820,25 @@ static bool edid_block_is_zero(const void *edid) return !memchr_inv(edid, 0, EDID_LENGTH); } -/** - * drm_edid_are_equal - compare two edid blobs. - * @edid1: pointer to first blob - * @edid2: pointer to second blob - * This helper can be used during probing to determine if - * edid had changed. - */ -bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2) +static bool drm_edid_eq(const struct drm_edid *drm_edid, + const void *raw_edid, size_t raw_edid_size) { - int edid1_len, edid2_len; - bool edid1_present = edid1 != NULL; - bool edid2_present = edid2 != NULL; + bool edid1_present = drm_edid && drm_edid->edid && drm_edid->size; + bool edid2_present = raw_edid && raw_edid_size; if (edid1_present != edid2_present) return false; - if (edid1) { - edid1_len = edid_size(edid1); - edid2_len = edid_size(edid2); - - if (edid1_len != edid2_len) + if (edid1_present) { + if (drm_edid->size != raw_edid_size) return false; - if (memcmp(edid1, edid2, edid1_len)) + if (memcmp(drm_edid->edid, raw_edid, drm_edid->size)) return false; } return true; } -EXPORT_SYMBOL(drm_edid_are_equal); enum edid_block_status { EDID_BLOCK_OK = 0, @@ -2756,6 +2747,63 @@ const struct drm_edid *drm_edid_read(struct drm_connector *connector) } EXPORT_SYMBOL(drm_edid_read); +/** + * drm_edid_get_product_id - Get the vendor and product identification + * @drm_edid: EDID + * @id: Where to place the product id + */ +void drm_edid_get_product_id(const struct drm_edid *drm_edid, + struct drm_edid_product_id *id) +{ + if (drm_edid && drm_edid->edid && drm_edid->size >= EDID_LENGTH) + memcpy(id, &drm_edid->edid->product_id, sizeof(*id)); + else + memset(id, 0, sizeof(*id)); +} +EXPORT_SYMBOL(drm_edid_get_product_id); + +static void decode_date(struct seq_buf *s, const struct drm_edid_product_id *id) +{ + int week = id->week_of_manufacture; + int year = id->year_of_manufacture + 1990; + + if (week == 0xff) + seq_buf_printf(s, "model year: %d", year); + else if (!week) + seq_buf_printf(s, "year of manufacture: %d", year); + else + seq_buf_printf(s, "week/year of manufacture: %d/%d", week, year); +} + +/** + * drm_edid_print_product_id - Print decoded product id to printer + * @p: drm printer + * @id: EDID product id + * @raw: If true, also print the raw hex + * + * See VESA E-EDID 1.4 section 3.4. + */ +void drm_edid_print_product_id(struct drm_printer *p, + const struct drm_edid_product_id *id, bool raw) +{ + DECLARE_SEQ_BUF(date, 40); + char vend[4]; + + drm_edid_decode_mfg_id(be16_to_cpu(id->manufacturer_name), vend); + + decode_date(&date, id); + + drm_printf(p, "manufacturer name: %s, product code: %u, serial number: %u, %s\n", + vend, le16_to_cpu(id->product_code), + le32_to_cpu(id->serial_number), seq_buf_str(&date)); + + if (raw) + drm_printf(p, "raw product id: %*ph\n", (int)sizeof(*id), id); + + WARN_ON(seq_buf_has_overflowed(&date)); +} +EXPORT_SYMBOL(drm_edid_print_product_id); + /** * drm_edid_get_panel_id - Get a panel's ID from EDID * @drm_edid: EDID that contains panel ID. @@ -4141,7 +4189,7 @@ static int add_detailed_modes(struct drm_connector *connector, * * FIXME: Prefer not returning pointers to raw EDID data. */ -const u8 *drm_find_edid_extension(const struct drm_edid *drm_edid, +const u8 *drm_edid_find_extension(const struct drm_edid *drm_edid, int ext_id, int *ext_index) { const u8 *edid_ext = NULL; @@ -4171,11 +4219,21 @@ static bool drm_edid_has_cta_extension(const struct drm_edid *drm_edid) { const struct displayid_block *block; struct displayid_iter iter; - int ext_index = 0; + struct drm_edid_iter edid_iter; + const u8 *ext; bool found = false; /* Look for a top level CEA extension block */ - if (drm_find_edid_extension(drm_edid, CEA_EXT, &ext_index)) + drm_edid_iter_begin(drm_edid, &edid_iter); + drm_edid_iter_for_each(ext, &edid_iter) { + if (ext[0] == CEA_EXT) { + found = true; + break; + } + } + drm_edid_iter_end(&edid_iter); + + if (found) return true; /* CEA blocks can also be found embedded in a DisplayID block */ @@ -6868,15 +6926,14 @@ static int _drm_edid_connector_property_update(struct drm_connector *connector, int ret; if (connector->edid_blob_ptr) { - const struct edid *old_edid = connector->edid_blob_ptr->data; + const void *old_edid = connector->edid_blob_ptr->data; + size_t old_edid_size = connector->edid_blob_ptr->length; - if (old_edid) { - if (!drm_edid_are_equal(drm_edid ? drm_edid->edid : NULL, old_edid)) { - connector->epoch_counter++; - drm_dbg_kms(dev, "[CONNECTOR:%d:%s] EDID changed, epoch counter %llu\n", - connector->base.id, connector->name, - connector->epoch_counter); - } + if (old_edid && !drm_edid_eq(drm_edid, old_edid, old_edid_size)) { + connector->epoch_counter++; + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] EDID changed, epoch counter %llu\n", + connector->base.id, connector->name, + connector->epoch_counter); } } diff --git a/drivers/gpu/drm/drm_eld.c b/drivers/gpu/drm/drm_eld.c index 5177991aa272..c0428d07de53 100644 --- a/drivers/gpu/drm/drm_eld.c +++ b/drivers/gpu/drm/drm_eld.c @@ -3,10 +3,12 @@ * Copyright © 2023 Intel Corporation */ +#include + #include #include -#include "drm_internal.h" +#include "drm_crtc_internal.h" /** * drm_eld_sad_get - get SAD from ELD to struct cea_sad diff --git a/drivers/gpu/drm/drm_fb_dma_helper.c b/drivers/gpu/drm/drm_fb_dma_helper.c index 3b535ad1b07c..96e5ab960f12 100644 --- a/drivers/gpu/drm/drm_fb_dma_helper.c +++ b/drivers/gpu/drm/drm_fb_dma_helper.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -148,3 +149,44 @@ void drm_fb_dma_sync_non_coherent(struct drm_device *drm, } } EXPORT_SYMBOL_GPL(drm_fb_dma_sync_non_coherent); + +/** + * drm_fb_dma_get_scanout_buffer - Provide a scanout buffer in case of panic + * @plane: DRM primary plane + * @sb: scanout buffer for the panic handler + * Returns: 0 or negative error code + * + * Generic get_scanout_buffer() implementation, for drivers that uses the + * drm_fb_dma_helper. It won't call vmap in the panic context, so the driver + * should make sure the primary plane is vmapped, otherwise the panic screen + * won't get displayed. + */ +int drm_fb_dma_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb) +{ + struct drm_gem_dma_object *dma_obj; + struct drm_framebuffer *fb; + + fb = plane->state->fb; + /* Only support linear modifier */ + if (fb->modifier != DRM_FORMAT_MOD_LINEAR) + return -ENODEV; + + dma_obj = drm_fb_dma_get_gem_obj(fb, 0); + + /* Buffer should be accessible from the CPU */ + if (dma_obj->base.import_attach) + return -ENODEV; + + /* Buffer should be already mapped to CPU */ + if (!dma_obj->vaddr) + return -ENODEV; + + iosys_map_set_vaddr(&sb->map[0], dma_obj->vaddr); + sb->format = fb->format; + sb->height = fb->height; + sb->width = fb->width; + sb->pitch[0] = fb->pitches[0]; + return 0; +} +EXPORT_SYMBOL(drm_fb_dma_get_scanout_buffer); diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h index 2215baef9a3e..690505a1f7a5 100644 --- a/drivers/gpu/drm/drm_internal.h +++ b/drivers/gpu/drm/drm_internal.h @@ -35,7 +35,6 @@ #define DRM_IF_VERSION(maj, min) (maj << 16 | min) -struct cea_sad; struct dentry; struct dma_buf; struct iosys_map; @@ -278,8 +277,4 @@ void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, const struct drm_framebuffer *fb); void drm_framebuffer_debugfs_init(struct drm_device *dev); -/* drm_edid.c */ -void drm_edid_cta_sad_get(const struct cea_sad *cta_sad, u8 *sad); -void drm_edid_cta_sad_set(struct cea_sad *cta_sad, const u8 *sad); - #endif /* __DRM_INTERNAL_H__ */ diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index ef6e416522f8..795001bb7ff1 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -644,6 +644,43 @@ int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi, } EXPORT_SYMBOL(mipi_dsi_set_maximum_return_packet_size); +/** + * mipi_dsi_compression_mode_ext() - enable/disable DSC on the peripheral + * @dsi: DSI peripheral device + * @enable: Whether to enable or disable the DSC + * @algo: Selected compression algorithm + * @pps_selector: Select PPS from the table of pre-stored or uploaded PPS entries + * + * Enable or disable Display Stream Compression on the peripheral. + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_compression_mode_ext(struct mipi_dsi_device *dsi, bool enable, + enum mipi_dsi_compression_algo algo, + unsigned int pps_selector) +{ + u8 tx[2] = { }; + struct mipi_dsi_msg msg = { + .channel = dsi->channel, + .type = MIPI_DSI_COMPRESSION_MODE, + .tx_len = sizeof(tx), + .tx_buf = tx, + }; + int ret; + + if (algo > 3 || pps_selector > 3) + return -EINVAL; + + tx[0] = (enable << 0) | + (algo << 1) | + (pps_selector << 4); + + ret = mipi_dsi_device_transfer(dsi, &msg); + + return (ret < 0) ? ret : 0; +} +EXPORT_SYMBOL(mipi_dsi_compression_mode_ext); + /** * mipi_dsi_compression_mode() - enable/disable DSC on the peripheral * @dsi: DSI peripheral device @@ -654,19 +691,9 @@ EXPORT_SYMBOL(mipi_dsi_set_maximum_return_packet_size); * * Return: 0 on success or a negative error code on failure. */ -ssize_t mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable) +int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable) { - /* Note: Needs updating for non-default PPS or algorithm */ - u8 tx[2] = { enable << 0, 0 }; - struct mipi_dsi_msg msg = { - .channel = dsi->channel, - .type = MIPI_DSI_COMPRESSION_MODE, - .tx_len = sizeof(tx), - .tx_buf = tx, - }; - int ret = mipi_dsi_device_transfer(dsi, &msg); - - return (ret < 0) ? ret : 0; + return mipi_dsi_compression_mode_ext(dsi, enable, MIPI_DSI_COMPRESSION_DSC, 0); } EXPORT_SYMBOL(mipi_dsi_compression_mode); @@ -679,8 +706,8 @@ EXPORT_SYMBOL(mipi_dsi_compression_mode); * * Return: 0 on success or a negative error code on failure. */ -ssize_t mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi, - const struct drm_dsc_picture_parameter_set *pps) +int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi, + const struct drm_dsc_picture_parameter_set *pps) { struct mipi_dsi_msg msg = { .channel = dsi->channel, diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c index 48fd2d67f352..568972258222 100644 --- a/drivers/gpu/drm/drm_mode_config.c +++ b/drivers/gpu/drm/drm_mode_config.c @@ -372,6 +372,13 @@ static int drm_mode_create_standard_properties(struct drm_device *dev) return -ENOMEM; dev->mode_config.modifiers_property = prop; + prop = drm_property_create(dev, + DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_BLOB, + "SIZE_HINTS", 0); + if (!prop) + return -ENOMEM; + dev->mode_config.size_hints_property = prop; + return 0; } diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index c4f88c3a93b7..2d8b0371619d 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -373,8 +373,8 @@ static int fill_analog_mode(struct drm_device *dev, if (!bt601 && (hact_duration_ns < params->hact_ns.min || hact_duration_ns > params->hact_ns.max)) { - DRM_ERROR("Invalid horizontal active area duration: %uns (min: %u, max %u)\n", - hact_duration_ns, params->hact_ns.min, params->hact_ns.max); + drm_err(dev, "Invalid horizontal active area duration: %uns (min: %u, max %u)\n", + hact_duration_ns, params->hact_ns.min, params->hact_ns.max); return -EINVAL; } @@ -385,8 +385,8 @@ static int fill_analog_mode(struct drm_device *dev, if (!bt601 && (hblk_duration_ns < params->hblk_ns.min || hblk_duration_ns > params->hblk_ns.max)) { - DRM_ERROR("Invalid horizontal blanking duration: %uns (min: %u, max %u)\n", - hblk_duration_ns, params->hblk_ns.min, params->hblk_ns.max); + drm_err(dev, "Invalid horizontal blanking duration: %uns (min: %u, max %u)\n", + hblk_duration_ns, params->hblk_ns.min, params->hblk_ns.max); return -EINVAL; } @@ -397,8 +397,8 @@ static int fill_analog_mode(struct drm_device *dev, if (!bt601 && (hslen_duration_ns < params->hslen_ns.min || hslen_duration_ns > params->hslen_ns.max)) { - DRM_ERROR("Invalid horizontal sync duration: %uns (min: %u, max %u)\n", - hslen_duration_ns, params->hslen_ns.min, params->hslen_ns.max); + drm_err(dev, "Invalid horizontal sync duration: %uns (min: %u, max %u)\n", + hslen_duration_ns, params->hslen_ns.min, params->hslen_ns.max); return -EINVAL; } @@ -409,7 +409,8 @@ static int fill_analog_mode(struct drm_device *dev, if (!bt601 && (porches_duration_ns > (params->hfp_ns.max + params->hbp_ns.max) || porches_duration_ns < (params->hfp_ns.min + params->hbp_ns.min))) { - DRM_ERROR("Invalid horizontal porches duration: %uns\n", porches_duration_ns); + drm_err(dev, "Invalid horizontal porches duration: %uns\n", + porches_duration_ns); return -EINVAL; } @@ -431,8 +432,8 @@ static int fill_analog_mode(struct drm_device *dev, if (!bt601 && (hfp_duration_ns < params->hfp_ns.min || hfp_duration_ns > params->hfp_ns.max)) { - DRM_ERROR("Invalid horizontal front porch duration: %uns (min: %u, max %u)\n", - hfp_duration_ns, params->hfp_ns.min, params->hfp_ns.max); + drm_err(dev, "Invalid horizontal front porch duration: %uns (min: %u, max %u)\n", + hfp_duration_ns, params->hfp_ns.min, params->hfp_ns.max); return -EINVAL; } @@ -443,8 +444,8 @@ static int fill_analog_mode(struct drm_device *dev, if (!bt601 && (hbp_duration_ns < params->hbp_ns.min || hbp_duration_ns > params->hbp_ns.max)) { - DRM_ERROR("Invalid horizontal back porch duration: %uns (min: %u, max %u)\n", - hbp_duration_ns, params->hbp_ns.min, params->hbp_ns.max); + drm_err(dev, "Invalid horizontal back porch duration: %uns (min: %u, max %u)\n", + hbp_duration_ns, params->hbp_ns.min, params->hbp_ns.max); return -EINVAL; } @@ -495,8 +496,8 @@ static int fill_analog_mode(struct drm_device *dev, vtotal = vactive + vfp + vslen + vbp; if (params->num_lines != vtotal) { - DRM_ERROR("Invalid vertical total: %upx (expected %upx)\n", - vtotal, params->num_lines); + drm_err(dev, "Invalid vertical total: %upx (expected %upx)\n", + vtotal, params->num_lines); return -EINVAL; } @@ -1200,9 +1201,8 @@ int of_get_drm_display_mode(struct device_node *np, if (bus_flags) drm_bus_flags_from_videomode(&vm, bus_flags); - pr_debug("%pOF: got %dx%d display mode\n", - np, vm.hactive, vm.vactive); - drm_mode_debug_printmodeline(dmode); + pr_debug("%pOF: got %dx%d display mode: " DRM_MODE_FMT "\n", + np, vm.hactive, vm.vactive, DRM_MODE_ARG(dmode)); return 0; } @@ -1250,7 +1250,7 @@ int of_get_drm_panel_display_mode(struct device_node *np, dmode->width_mm = width_mm; dmode->height_mm = height_mm; - drm_mode_debug_printmodeline(dmode); + pr_debug(DRM_MODE_FMT "\n", DRM_MODE_ARG(dmode)); return 0; } @@ -1812,10 +1812,8 @@ void drm_mode_prune_invalid(struct drm_device *dev, DRM_MODE_FMT "\n", DRM_MODE_ARG(mode)); } if (verbose) { - drm_mode_debug_printmodeline(mode); - DRM_DEBUG_KMS("Not using %s mode: %s\n", - mode->name, - drm_get_mode_status_name(mode->status)); + drm_dbg_kms(dev, "Rejected mode: " DRM_MODE_FMT " (%s)\n", + DRM_MODE_ARG(mode), drm_get_mode_status_name(mode->status)); } drm_mode_destroy(dev, mode); } diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c new file mode 100644 index 000000000000..7ece67086cec --- /dev/null +++ b/drivers/gpu/drm/drm_panic.c @@ -0,0 +1,585 @@ +// SPDX-License-Identifier: GPL-2.0 or MIT +/* + * Copyright (c) 2023 Red Hat. + * Author: Jocelyn Falempe + * inspired by the drm_log driver from David Herrmann + * Tux Ascii art taken from cowsay written by Tony Monroe + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Jocelyn Falempe"); +MODULE_DESCRIPTION("DRM panic handler"); +MODULE_LICENSE("GPL"); + +/** + * DOC: overview + * + * To enable DRM panic for a driver, the primary plane must implement a + * &drm_plane_helper_funcs.get_scanout_buffer helper function. It is then + * automatically registered to the drm panic handler. + * When a panic occurs, the &drm_plane_helper_funcs.get_scanout_buffer will be + * called, and the driver can provide a framebuffer so the panic handler can + * draw the panic screen on it. Currently only linear buffer and a few color + * formats are supported. + * Optionally the driver can also provide a &drm_plane_helper_funcs.panic_flush + * callback, that will be called after that, to send additional commands to the + * hardware to make the scanout buffer visible. + */ + +/* + * This module displays a user friendly message on screen when a kernel panic + * occurs. This is conflicting with fbcon, so you can only enable it when fbcon + * is disabled. + * It's intended for end-user, so have minimal technical/debug information. + * + * Implementation details: + * + * It is a panic handler, so it can't take lock, allocate memory, run tasks/irq, + * or attempt to sleep. It's a best effort, and it may not be able to display + * the message in all situations (like if the panic occurs in the middle of a + * modesetting). + * It will display only one static frame, so performance optimizations are low + * priority as the machine is already in an unusable state. + */ + +struct drm_panic_line { + u32 len; + const char *txt; +}; + +#define PANIC_LINE(s) {.len = sizeof(s) - 1, .txt = s} + +static struct drm_panic_line panic_msg[] = { + PANIC_LINE("KERNEL PANIC !"), + PANIC_LINE(""), + PANIC_LINE("Please reboot your computer."), +}; + +static const struct drm_panic_line logo[] = { + PANIC_LINE(" .--. _"), + PANIC_LINE(" |o_o | | |"), + PANIC_LINE(" |:_/ | | |"), + PANIC_LINE(" // \\ \\ |_|"), + PANIC_LINE(" (| | ) _"), + PANIC_LINE(" /'\\_ _/`\\ (_)"), + PANIC_LINE(" \\___)=(___/"), +}; + +/* + * Color conversion + */ + +static u16 convert_xrgb8888_to_rgb565(u32 pix) +{ + return ((pix & 0x00F80000) >> 8) | + ((pix & 0x0000FC00) >> 5) | + ((pix & 0x000000F8) >> 3); +} + +static u16 convert_xrgb8888_to_rgba5551(u32 pix) +{ + return ((pix & 0x00f80000) >> 8) | + ((pix & 0x0000f800) >> 5) | + ((pix & 0x000000f8) >> 2) | + BIT(0); /* set alpha bit */ +} + +static u16 convert_xrgb8888_to_xrgb1555(u32 pix) +{ + return ((pix & 0x00f80000) >> 9) | + ((pix & 0x0000f800) >> 6) | + ((pix & 0x000000f8) >> 3); +} + +static u16 convert_xrgb8888_to_argb1555(u32 pix) +{ + return BIT(15) | /* set alpha bit */ + ((pix & 0x00f80000) >> 9) | + ((pix & 0x0000f800) >> 6) | + ((pix & 0x000000f8) >> 3); +} + +static u32 convert_xrgb8888_to_argb8888(u32 pix) +{ + return pix | GENMASK(31, 24); /* fill alpha bits */ +} + +static u32 convert_xrgb8888_to_xbgr8888(u32 pix) +{ + return ((pix & 0x00ff0000) >> 16) << 0 | + ((pix & 0x0000ff00) >> 8) << 8 | + ((pix & 0x000000ff) >> 0) << 16 | + ((pix & 0xff000000) >> 24) << 24; +} + +static u32 convert_xrgb8888_to_abgr8888(u32 pix) +{ + return ((pix & 0x00ff0000) >> 16) << 0 | + ((pix & 0x0000ff00) >> 8) << 8 | + ((pix & 0x000000ff) >> 0) << 16 | + GENMASK(31, 24); /* fill alpha bits */ +} + +static u32 convert_xrgb8888_to_xrgb2101010(u32 pix) +{ + pix = ((pix & 0x000000FF) << 2) | + ((pix & 0x0000FF00) << 4) | + ((pix & 0x00FF0000) << 6); + return pix | ((pix >> 8) & 0x00300C03); +} + +static u32 convert_xrgb8888_to_argb2101010(u32 pix) +{ + pix = ((pix & 0x000000FF) << 2) | + ((pix & 0x0000FF00) << 4) | + ((pix & 0x00FF0000) << 6); + return GENMASK(31, 30) /* set alpha bits */ | pix | ((pix >> 8) & 0x00300C03); +} + +/* + * convert_from_xrgb8888 - convert one pixel from xrgb8888 to the desired format + * @color: input color, in xrgb8888 format + * @format: output format + * + * Returns: + * Color in the format specified, casted to u32. + * Or 0 if the format is not supported. + */ +static u32 convert_from_xrgb8888(u32 color, u32 format) +{ + switch (format) { + case DRM_FORMAT_RGB565: + return convert_xrgb8888_to_rgb565(color); + case DRM_FORMAT_RGBA5551: + return convert_xrgb8888_to_rgba5551(color); + case DRM_FORMAT_XRGB1555: + return convert_xrgb8888_to_xrgb1555(color); + case DRM_FORMAT_ARGB1555: + return convert_xrgb8888_to_argb1555(color); + case DRM_FORMAT_RGB888: + case DRM_FORMAT_XRGB8888: + return color; + case DRM_FORMAT_ARGB8888: + return convert_xrgb8888_to_argb8888(color); + case DRM_FORMAT_XBGR8888: + return convert_xrgb8888_to_xbgr8888(color); + case DRM_FORMAT_ABGR8888: + return convert_xrgb8888_to_abgr8888(color); + case DRM_FORMAT_XRGB2101010: + return convert_xrgb8888_to_xrgb2101010(color); + case DRM_FORMAT_ARGB2101010: + return convert_xrgb8888_to_argb2101010(color); + default: + WARN_ONCE(1, "Can't convert to %p4cc\n", &format); + return 0; + } +} + +/* + * Blit & Fill + */ +static void drm_panic_blit16(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + u16 fg16, u16 bg16) +{ + unsigned int y, x; + u16 val16; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + val16 = (sbuf8[(y * spitch) + x / 8] & (0x80 >> (x % 8))) ? fg16 : bg16; + iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, val16); + } + } +} + +static void drm_panic_blit24(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + u32 fg32, u32 bg32) +{ + unsigned int y, x; + u32 val32; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + u32 off = y * dpitch + x * 3; + + val32 = (sbuf8[(y * spitch) + x / 8] & (0x80 >> (x % 8))) ? fg32 : bg32; + + /* write blue-green-red to output in little endianness */ + iosys_map_wr(dmap, off, u8, (val32 & 0x000000FF) >> 0); + iosys_map_wr(dmap, off + 1, u8, (val32 & 0x0000FF00) >> 8); + iosys_map_wr(dmap, off + 2, u8, (val32 & 0x00FF0000) >> 16); + } + } +} + +static void drm_panic_blit32(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + u32 fg32, u32 bg32) +{ + unsigned int y, x; + u32 val32; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + val32 = (sbuf8[(y * spitch) + x / 8] & (0x80 >> (x % 8))) ? fg32 : bg32; + iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, val32); + } + } +} + +/* + * drm_panic_blit - convert a monochrome image to a linear framebuffer + * @dmap: destination iosys_map + * @dpitch: destination pitch in bytes + * @sbuf8: source buffer, in monochrome format, 8 pixels per byte. + * @spitch: source pitch in bytes + * @height: height of the image to copy, in pixels + * @width: width of the image to copy, in pixels + * @fg_color: foreground color, in destination format + * @bg_color: background color, in destination format + * @pixel_width: pixel width in bytes. + * + * This can be used to draw a font character, which is a monochrome image, to a + * framebuffer in other supported format. + */ +static void drm_panic_blit(struct iosys_map *dmap, unsigned int dpitch, + const u8 *sbuf8, unsigned int spitch, + unsigned int height, unsigned int width, + u32 fg_color, u32 bg_color, + unsigned int pixel_width) +{ + switch (pixel_width) { + case 2: + drm_panic_blit16(dmap, dpitch, sbuf8, spitch, + height, width, fg_color, bg_color); + break; + case 3: + drm_panic_blit24(dmap, dpitch, sbuf8, spitch, + height, width, fg_color, bg_color); + break; + case 4: + drm_panic_blit32(dmap, dpitch, sbuf8, spitch, + height, width, fg_color, bg_color); + break; + default: + WARN_ONCE(1, "Can't blit with pixel width %d\n", pixel_width); + } +} + +static void drm_panic_fill16(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u16 color) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) + for (x = 0; x < width; x++) + iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, color); +} + +static void drm_panic_fill24(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u32 color) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + unsigned int off = y * dpitch + x * 3; + + /* write blue-green-red to output in little endianness */ + iosys_map_wr(dmap, off, u8, (color & 0x000000FF) >> 0); + iosys_map_wr(dmap, off + 1, u8, (color & 0x0000FF00) >> 8); + iosys_map_wr(dmap, off + 2, u8, (color & 0x00FF0000) >> 16); + } + } +} + +static void drm_panic_fill32(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u32 color) +{ + unsigned int y, x; + + for (y = 0; y < height; y++) + for (x = 0; x < width; x++) + iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, color); +} + +/* + * drm_panic_fill - Fill a rectangle with a color + * @dmap: destination iosys_map, pointing to the top left corner of the rectangle + * @dpitch: destination pitch in bytes + * @height: height of the rectangle, in pixels + * @width: width of the rectangle, in pixels + * @color: color to fill the rectangle. + * @pixel_width: pixel width in bytes + * + * Fill a rectangle with a color, in a linear framebuffer. + */ +static void drm_panic_fill(struct iosys_map *dmap, unsigned int dpitch, + unsigned int height, unsigned int width, + u32 color, unsigned int pixel_width) +{ + switch (pixel_width) { + case 2: + drm_panic_fill16(dmap, dpitch, height, width, color); + break; + case 3: + drm_panic_fill24(dmap, dpitch, height, width, color); + break; + case 4: + drm_panic_fill32(dmap, dpitch, height, width, color); + break; + default: + WARN_ONCE(1, "Can't fill with pixel width %d\n", pixel_width); + } +} + +static const u8 *get_char_bitmap(const struct font_desc *font, char c, size_t font_pitch) +{ + return font->data + (c * font->height) * font_pitch; +} + +static unsigned int get_max_line_len(const struct drm_panic_line *lines, int len) +{ + int i; + unsigned int max = 0; + + for (i = 0; i < len; i++) + max = max(lines[i].len, max); + return max; +} + +/* + * Draw a text in a rectangle on a framebuffer. The text is truncated if it overflows the rectangle + */ +static void draw_txt_rectangle(struct drm_scanout_buffer *sb, + const struct font_desc *font, + const struct drm_panic_line *msg, + unsigned int msg_lines, + bool centered, + struct drm_rect *clip, + u32 fg_color, + u32 bg_color) +{ + int i, j; + const u8 *src; + size_t font_pitch = DIV_ROUND_UP(font->width, 8); + struct iosys_map dst; + unsigned int px_width = sb->format->cpp[0]; + int left = 0; + + msg_lines = min(msg_lines, drm_rect_height(clip) / font->height); + for (i = 0; i < msg_lines; i++) { + size_t line_len = min(msg[i].len, drm_rect_width(clip) / font->width); + + if (centered) + left = (drm_rect_width(clip) - (line_len * font->width)) / 2; + + dst = sb->map[0]; + iosys_map_incr(&dst, (clip->y1 + i * font->height) * sb->pitch[0] + + (clip->x1 + left) * px_width); + for (j = 0; j < line_len; j++) { + src = get_char_bitmap(font, msg[i].txt[j], font_pitch); + drm_panic_blit(&dst, sb->pitch[0], src, font_pitch, + font->height, font->width, + fg_color, bg_color, px_width); + iosys_map_incr(&dst, font->width * px_width); + } + } +} + +/* + * Draw the panic message at the center of the screen + */ +static void draw_panic_static(struct drm_scanout_buffer *sb) +{ + size_t msg_lines = ARRAY_SIZE(panic_msg); + size_t logo_lines = ARRAY_SIZE(logo); + u32 fg_color = CONFIG_DRM_PANIC_FOREGROUND_COLOR; + u32 bg_color = CONFIG_DRM_PANIC_BACKGROUND_COLOR; + const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); + struct drm_rect r_logo, r_msg; + + if (!font) + return; + + fg_color = convert_from_xrgb8888(fg_color, sb->format->format); + bg_color = convert_from_xrgb8888(bg_color, sb->format->format); + + r_logo = DRM_RECT_INIT(0, 0, + get_max_line_len(logo, logo_lines) * font->width, + logo_lines * font->height); + r_msg = DRM_RECT_INIT(0, 0, + min(get_max_line_len(panic_msg, msg_lines) * font->width, sb->width), + min(msg_lines * font->height, sb->height)); + + /* Center the panic message */ + drm_rect_translate(&r_msg, (sb->width - r_msg.x2) / 2, (sb->height - r_msg.y2) / 2); + + /* Fill with the background color, and draw text on top */ + drm_panic_fill(&sb->map[0], sb->pitch[0], sb->height, sb->width, + bg_color, sb->format->cpp[0]); + + if ((r_msg.x1 >= drm_rect_width(&r_logo) || r_msg.y1 >= drm_rect_height(&r_logo)) && + drm_rect_width(&r_logo) < sb->width && drm_rect_height(&r_logo) < sb->height) { + draw_txt_rectangle(sb, font, logo, logo_lines, false, &r_logo, fg_color, bg_color); + } + draw_txt_rectangle(sb, font, panic_msg, msg_lines, true, &r_msg, fg_color, bg_color); +} + +/* + * drm_panic_is_format_supported() + * @format: a fourcc color code + * Returns: true if supported, false otherwise. + * + * Check if drm_panic will be able to use this color format. + */ +static bool drm_panic_is_format_supported(const struct drm_format_info *format) +{ + if (format->num_planes != 1) + return false; + return convert_from_xrgb8888(0xffffff, format->format) != 0; +} + +static void draw_panic_plane(struct drm_plane *plane) +{ + struct drm_scanout_buffer sb; + int ret; + unsigned long flags; + + if (!drm_panic_trylock(plane->dev, flags)) + return; + + ret = plane->helper_private->get_scanout_buffer(plane, &sb); + + if (!ret && drm_panic_is_format_supported(sb.format)) { + draw_panic_static(&sb); + if (plane->helper_private->panic_flush) + plane->helper_private->panic_flush(plane); + } + drm_panic_unlock(plane->dev, flags); +} + +static struct drm_plane *to_drm_plane(struct kmsg_dumper *kd) +{ + return container_of(kd, struct drm_plane, kmsg_panic); +} + +static void drm_panic(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason) +{ + struct drm_plane *plane = to_drm_plane(dumper); + + if (reason == KMSG_DUMP_PANIC) + draw_panic_plane(plane); +} + + +/* + * DEBUG FS, This is currently unsafe. + * Create one file per plane, so it's possible to debug one plane at a time. + * TODO: It would be better to emulate an NMI context. + */ +#ifdef CONFIG_DRM_PANIC_DEBUG +#include + +static ssize_t debugfs_trigger_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + bool run; + + if (kstrtobool_from_user(user_buf, count, &run) == 0 && run) { + struct drm_plane *plane = file->private_data; + + draw_panic_plane(plane); + } + return count; +} + +static const struct file_operations dbg_drm_panic_ops = { + .owner = THIS_MODULE, + .write = debugfs_trigger_write, + .open = simple_open, +}; + +static void debugfs_register_plane(struct drm_plane *plane, int index) +{ + char fname[32]; + + snprintf(fname, 32, "drm_panic_plane_%d", index); + debugfs_create_file(fname, 0200, plane->dev->debugfs_root, + plane, &dbg_drm_panic_ops); +} +#else +static void debugfs_register_plane(struct drm_plane *plane, int index) {} +#endif /* CONFIG_DRM_PANIC_DEBUG */ + +/** + * drm_panic_register() - Initialize DRM panic for a device + * @dev: the drm device on which the panic screen will be displayed. + */ +void drm_panic_register(struct drm_device *dev) +{ + struct drm_plane *plane; + int registered_plane = 0; + + if (!dev->mode_config.num_total_plane) + return; + + drm_for_each_plane(plane, dev) { + if (!plane->helper_private || !plane->helper_private->get_scanout_buffer) + continue; + plane->kmsg_panic.dump = drm_panic; + plane->kmsg_panic.max_reason = KMSG_DUMP_PANIC; + if (kmsg_dump_register(&plane->kmsg_panic)) + drm_warn(dev, "Failed to register panic handler\n"); + else { + debugfs_register_plane(plane, registered_plane); + registered_plane++; + } + } + if (registered_plane) + drm_info(dev, "Registered %d planes with drm panic\n", registered_plane); +} +EXPORT_SYMBOL(drm_panic_register); + +/** + * drm_panic_unregister() + * @dev: the drm device previously registered. + */ +void drm_panic_unregister(struct drm_device *dev) +{ + struct drm_plane *plane; + + if (!dev->mode_config.num_total_plane) + return; + + drm_for_each_plane(plane, dev) { + if (!plane->helper_private || !plane->helper_private->get_scanout_buffer) + continue; + kmsg_dump_unregister(&plane->kmsg_panic); + } +} +EXPORT_SYMBOL(drm_panic_unregister); diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 672c655c7a8e..eecc24c54efd 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -140,6 +140,25 @@ * DRM_FORMAT_MOD_LINEAR. Before linux kernel release v5.1 there have been * various bugs in this area with inconsistencies between the capability * flag and per-plane properties. + * + * SIZE_HINTS: + * Blob property which contains the set of recommended plane size + * which can used for simple "cursor like" use cases (eg. no scaling). + * Using these hints frees userspace from extensive probing of + * supported plane sizes through atomic/setcursor ioctls. + * + * The blob contains an array of struct drm_plane_size_hint, in + * order of preference. For optimal usage userspace should pick + * the first size that satisfies its own requirements. + * + * Drivers should only attach this property to planes that + * support a very limited set of sizes. + * + * Note that property value 0 (ie. no blob) is reserved for potential + * future use. Current userspace is expected to ignore the property + * if the value is 0, and fall back to some other means (eg. + * &DRM_CAP_CURSOR_WIDTH and &DRM_CAP_CURSOR_HEIGHT) to determine + * the appropriate plane size to use. */ static unsigned int drm_num_planes(struct drm_device *dev) @@ -1729,3 +1748,40 @@ int drm_plane_create_scaling_filter_property(struct drm_plane *plane, return 0; } EXPORT_SYMBOL(drm_plane_create_scaling_filter_property); + +/** + * drm_plane_add_size_hint_property - create a size hint property + * + * @plane: drm plane + * @hints: size hints + * @num_hints: number of size hints + * + * Create a size hints property for the plane. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_plane_add_size_hints_property(struct drm_plane *plane, + const struct drm_plane_size_hint *hints, + int num_hints) +{ + struct drm_device *dev = plane->dev; + struct drm_mode_config *config = &dev->mode_config; + struct drm_property_blob *blob; + + /* extending to other plane types needs actual thought */ + if (drm_WARN_ON(dev, plane->type != DRM_PLANE_TYPE_CURSOR)) + return -EINVAL; + + blob = drm_property_create_blob(dev, + array_size(sizeof(hints[0]), num_hints), + hints); + if (IS_ERR(blob)) + return PTR_ERR(blob); + + drm_object_attach_property(&plane->base, config->size_hints_property, + blob->base.id); + + return 0; +} +EXPORT_SYMBOL(drm_plane_add_size_hints_property); diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 968a3ee66b1e..4f75a1cfd820 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -567,8 +567,8 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, drm_modeset_acquire_init(&ctx, 0); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s]\n", connector->base.id, + connector->name); retry: ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx); @@ -611,11 +611,10 @@ retry: * check here, and if anything changed start the hotplug code. */ if (old_status != connector->status) { - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n", - connector->base.id, - connector->name, - drm_get_connector_status_name(old_status), - drm_get_connector_status_name(connector->status)); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s\n", + connector->base.id, connector->name, + drm_get_connector_status_name(old_status), + drm_get_connector_status_name(connector->status)); /* * The hotplug event code might call into the fb @@ -638,8 +637,8 @@ retry: drm_kms_helper_poll_enable(dev); if (connector->status == connector_status_disconnected) { - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n", - connector->base.id, connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] disconnected\n", + connector->base.id, connector->name); drm_connector_update_edid_property(connector, NULL); drm_mode_prune_invalid(dev, &connector->modes, false); goto exit; @@ -697,11 +696,13 @@ exit: drm_mode_sort(&connector->modes); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id, - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] probed modes:\n", + connector->base.id, connector->name); + list_for_each_entry(mode, &connector->modes, head) { drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); - drm_mode_debug_printmodeline(mode); + drm_dbg_kms(dev, "Probed mode: " DRM_MODE_FMT "\n", + DRM_MODE_ARG(mode)); } return count; @@ -834,14 +835,12 @@ static void output_poll_execute(struct work_struct *work) old = drm_get_connector_status_name(old_status); new = drm_get_connector_status_name(connector->status); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] " - "status updated from %s to %s\n", - connector->base.id, - connector->name, - old, new); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] epoch counter %llu -> %llu\n", - connector->base.id, connector->name, - old_epoch_counter, connector->epoch_counter); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s\n", + connector->base.id, connector->name, + old, new); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] epoch counter %llu -> %llu\n", + connector->base.id, connector->name, + old_epoch_counter, connector->epoch_counter); changed = true; } diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index a953f69a34b6..bd9b8ab4f82b 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -209,10 +209,9 @@ static ssize_t status_store(struct device *device, ret = -EINVAL; if (old_force != connector->force || !connector->force) { - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force updated from %d to %d or reprobing\n", - connector->base.id, - connector->name, - old_force, connector->force); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] force updated from %d to %d or reprobing\n", + connector->base.id, connector->name, + old_force, connector->force); connector->funcs->fill_modes(connector, dev->mode_config.max_width, @@ -383,8 +382,8 @@ int drm_sysfs_connector_add(struct drm_connector *connector) if (r) goto err_free; - DRM_DEBUG("adding \"%s\" to sysfs\n", - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] adding connector to sysfs\n", + connector->base.id, connector->name); r = device_add(kdev); if (r) { @@ -430,8 +429,9 @@ void drm_sysfs_connector_remove(struct drm_connector *connector) if (dev_fwnode(connector->kdev)) component_del(connector->kdev, &typec_connector_ops); - DRM_DEBUG("removing \"%s\" from sysfs\n", - connector->name); + drm_dbg_kms(connector->dev, + "[CONNECTOR:%d:%s] removing connector from sysfs\n", + connector->base.id, connector->name); device_unregister(connector->kdev); connector->kdev = NULL; @@ -442,7 +442,7 @@ void drm_sysfs_lease_event(struct drm_device *dev) char *event_string = "LEASE=1"; char *envp[] = { event_string, NULL }; - DRM_DEBUG("generating lease event\n"); + drm_dbg_lease(dev, "generating lease event\n"); kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp); } @@ -463,7 +463,7 @@ void drm_sysfs_hotplug_event(struct drm_device *dev) char *event_string = "HOTPLUG=1"; char *envp[] = { event_string, NULL }; - DRM_DEBUG("generating hotplug event\n"); + drm_dbg_kms(dev, "generating hotplug event\n"); kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp); } diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index 702a12bc93bd..cc3571e25a9a 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -166,11 +166,24 @@ module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600) MODULE_PARM_DESC(vblankoffdelay, "Delay until vblank irq auto-disable [msecs] (0: never disable, <0: disable immediately)"); MODULE_PARM_DESC(timestamp_precision_usec, "Max. error on timestamps [usecs]"); +static struct drm_vblank_crtc * +drm_vblank_crtc(struct drm_device *dev, unsigned int pipe) +{ + return &dev->vblank[pipe]; +} + +struct drm_vblank_crtc * +drm_crtc_vblank_crtc(struct drm_crtc *crtc) +{ + return drm_vblank_crtc(crtc->dev, drm_crtc_index(crtc)); +} +EXPORT_SYMBOL(drm_crtc_vblank_crtc); + static void store_vblank(struct drm_device *dev, unsigned int pipe, u32 vblank_count_inc, ktime_t t_vblank, u32 last) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); assert_spin_locked(&dev->vblank_time_lock); @@ -184,7 +197,7 @@ static void store_vblank(struct drm_device *dev, unsigned int pipe, static u32 drm_max_vblank_count(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); return vblank->max_vblank_count ?: dev->max_vblank_count; } @@ -273,7 +286,7 @@ static void drm_reset_vblank_timestamp(struct drm_device *dev, unsigned int pipe static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe, bool in_vblank_irq) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); u32 cur_vblank, diff; bool rc; ktime_t t_vblank; @@ -364,7 +377,7 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe, u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); u64 count; if (drm_WARN_ON(dev, pipe >= dev->num_crtcs)) @@ -438,7 +451,7 @@ static void __disable_vblank(struct drm_device *dev, unsigned int pipe) */ void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); unsigned long irqflags; assert_spin_locked(&dev->vbl_lock); @@ -600,7 +613,7 @@ void drm_calc_timestamping_constants(struct drm_crtc *crtc, { struct drm_device *dev = crtc->dev; unsigned int pipe = drm_crtc_index(crtc); - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc); int linedur_ns = 0, framedur_ns = 0; int dotclock = mode->crtc_clock; @@ -930,7 +943,7 @@ EXPORT_SYMBOL(drm_crtc_vblank_count); static u64 drm_vblank_count_and_time(struct drm_device *dev, unsigned int pipe, ktime_t *vblanktime) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); u64 vblank_count; unsigned int seq; @@ -985,7 +998,6 @@ EXPORT_SYMBOL(drm_crtc_vblank_count_and_time); */ int drm_crtc_next_vblank_start(struct drm_crtc *crtc, ktime_t *vblanktime) { - unsigned int pipe = drm_crtc_index(crtc); struct drm_vblank_crtc *vblank; struct drm_display_mode *mode; u64 vblank_start; @@ -993,7 +1005,7 @@ int drm_crtc_next_vblank_start(struct drm_crtc *crtc, ktime_t *vblanktime) if (!drm_dev_has_vblank(crtc->dev)) return -EINVAL; - vblank = &crtc->dev->vblank[pipe]; + vblank = drm_crtc_vblank_crtc(crtc); mode = &vblank->hwmode; if (!vblank->framedur_ns || !vblank->linedur_ns) @@ -1147,7 +1159,7 @@ static int __enable_vblank(struct drm_device *dev, unsigned int pipe) static int drm_vblank_enable(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); int ret = 0; assert_spin_locked(&dev->vbl_lock); @@ -1185,7 +1197,7 @@ static int drm_vblank_enable(struct drm_device *dev, unsigned int pipe) int drm_vblank_get(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); unsigned long irqflags; int ret = 0; @@ -1228,7 +1240,7 @@ EXPORT_SYMBOL(drm_crtc_vblank_get); void drm_vblank_put(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); if (drm_WARN_ON(dev, pipe >= dev->num_crtcs)) return; @@ -1274,7 +1286,7 @@ EXPORT_SYMBOL(drm_crtc_vblank_put); */ void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); int ret; u64 last; @@ -1327,7 +1339,7 @@ void drm_crtc_vblank_off(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; unsigned int pipe = drm_crtc_index(crtc); - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc); struct drm_pending_vblank_event *e, *t; ktime_t now; u64 seq; @@ -1405,8 +1417,7 @@ EXPORT_SYMBOL(drm_crtc_vblank_off); void drm_crtc_vblank_reset(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; - unsigned int pipe = drm_crtc_index(crtc); - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc); spin_lock_irq(&dev->vbl_lock); /* @@ -1445,8 +1456,7 @@ void drm_crtc_set_max_vblank_count(struct drm_crtc *crtc, u32 max_vblank_count) { struct drm_device *dev = crtc->dev; - unsigned int pipe = drm_crtc_index(crtc); - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc); drm_WARN_ON(dev, dev->max_vblank_count); drm_WARN_ON(dev, !READ_ONCE(vblank->inmodeset)); @@ -1469,7 +1479,7 @@ void drm_crtc_vblank_on(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; unsigned int pipe = drm_crtc_index(crtc); - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc); if (drm_WARN_ON(dev, pipe >= dev->num_crtcs)) return; @@ -1512,7 +1522,7 @@ static void drm_vblank_restore(struct drm_device *dev, unsigned int pipe) assert_spin_locked(&dev->vbl_lock); assert_spin_locked(&dev->vblank_time_lock); - vblank = &dev->vblank[pipe]; + vblank = drm_vblank_crtc(dev, pipe); drm_WARN_ONCE(dev, drm_debug_enabled(DRM_UT_VBL) && !vblank->framedur_ns, "Cannot compute missed vblanks without frame duration\n"); @@ -1564,7 +1574,7 @@ static int drm_queue_vblank_event(struct drm_device *dev, unsigned int pipe, union drm_wait_vblank *vblwait, struct drm_file *file_priv) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); struct drm_pending_vblank_event *e; ktime_t now; u64 seq; @@ -1872,7 +1882,7 @@ static void drm_handle_vblank_events(struct drm_device *dev, unsigned int pipe) */ bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe) { - struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; + struct drm_vblank_crtc *vblank = drm_vblank_crtc(dev, pipe); unsigned long irqflags; bool disable_irq; @@ -1981,7 +1991,7 @@ int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, pipe = drm_crtc_index(crtc); - vblank = &dev->vblank[pipe]; + vblank = drm_crtc_vblank_crtc(crtc); vblank_enabled = dev->vblank_disable_immediate && READ_ONCE(vblank->enabled); if (!vblank_enabled) { @@ -2046,7 +2056,7 @@ int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, pipe = drm_crtc_index(crtc); - vblank = &dev->vblank[pipe]; + vblank = drm_crtc_vblank_crtc(crtc); e = kzalloc(sizeof(*e), GFP_KERNEL); if (e == NULL) diff --git a/drivers/gpu/drm/drm_vblank_work.c b/drivers/gpu/drm/drm_vblank_work.c index 43cd5c0f4f6f..4fe9b1d3b00f 100644 --- a/drivers/gpu/drm/drm_vblank_work.c +++ b/drivers/gpu/drm/drm_vblank_work.c @@ -245,7 +245,7 @@ void drm_vblank_work_init(struct drm_vblank_work *work, struct drm_crtc *crtc, { kthread_init_work(&work->base, func); INIT_LIST_HEAD(&work->node); - work->vblank = &crtc->dev->vblank[drm_crtc_index(crtc)]; + work->vblank = drm_crtc_vblank_crtc(crtc); } EXPORT_SYMBOL(drm_vblank_work_init); diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 2abd2d7ceda2..661842a3c2e6 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -595,11 +595,14 @@ get_lvds_fp_timing(const struct bdb_lvds_lfp_data *data, return (const void *)data + ptrs->ptr[index].fp_timing.offset; } -static const struct lvds_pnp_id * +static const struct drm_edid_product_id * get_lvds_pnp_id(const struct bdb_lvds_lfp_data *data, const struct bdb_lvds_lfp_data_ptrs *ptrs, int index) { + /* These two are supposed to have the same layout in memory. */ + BUILD_BUG_ON(sizeof(struct lvds_pnp_id) != sizeof(struct drm_edid_product_id)); + return (const void *)data + ptrs->ptr[index].panel_pnp_id.offset; } @@ -613,19 +616,6 @@ get_lfp_data_tail(const struct bdb_lvds_lfp_data *data, return NULL; } -static void dump_pnp_id(struct drm_i915_private *i915, - const struct lvds_pnp_id *pnp_id, - const char *name) -{ - u16 mfg_name = be16_to_cpu((__force __be16)pnp_id->mfg_name); - char vend[4]; - - drm_dbg_kms(&i915->drm, "%s PNPID mfg: %s (0x%x), prod: %u, serial: %u, week: %d, year: %d\n", - name, drm_edid_decode_mfg_id(mfg_name, vend), - pnp_id->mfg_name, pnp_id->product_code, pnp_id->serial, - pnp_id->mfg_week, pnp_id->mfg_year + 1990); -} - static int opregion_get_panel_type(struct drm_i915_private *i915, const struct intel_bios_encoder_data *devdata, const struct drm_edid *drm_edid, bool use_fallback) @@ -664,21 +654,21 @@ static int pnpid_get_panel_type(struct drm_i915_private *i915, { const struct bdb_lvds_lfp_data *data; const struct bdb_lvds_lfp_data_ptrs *ptrs; - const struct lvds_pnp_id *edid_id; - struct lvds_pnp_id edid_id_nodate; - const struct edid *edid = drm_edid_raw(drm_edid); /* FIXME */ + struct drm_edid_product_id product_id, product_id_nodate; + struct drm_printer p; int i, best = -1; - if (!edid) + if (!drm_edid) return -1; - edid_id = (const void *)&edid->mfg_id[0]; + drm_edid_get_product_id(drm_edid, &product_id); - edid_id_nodate = *edid_id; - edid_id_nodate.mfg_week = 0; - edid_id_nodate.mfg_year = 0; + product_id_nodate = product_id; + product_id_nodate.week_of_manufacture = 0; + product_id_nodate.year_of_manufacture = 0; - dump_pnp_id(i915, edid_id, "EDID"); + p = drm_dbg_printer(&i915->drm, DRM_UT_KMS, "EDID"); + drm_edid_print_product_id(&p, &product_id, true); ptrs = bdb_find_section(i915, BDB_LVDS_LFP_DATA_PTRS); if (!ptrs) @@ -689,11 +679,11 @@ static int pnpid_get_panel_type(struct drm_i915_private *i915, return -1; for (i = 0; i < 16; i++) { - const struct lvds_pnp_id *vbt_id = + const struct drm_edid_product_id *vbt_id = get_lvds_pnp_id(data, ptrs, i); /* full match? */ - if (!memcmp(vbt_id, edid_id, sizeof(*vbt_id))) + if (!memcmp(vbt_id, &product_id, sizeof(*vbt_id))) return i; /* @@ -701,7 +691,7 @@ static int pnpid_get_panel_type(struct drm_i915_private *i915, * and the VBT entry does not specify a date. */ if (best < 0 && - !memcmp(vbt_id, &edid_id_nodate, sizeof(*vbt_id))) + !memcmp(vbt_id, &product_id_nodate, sizeof(*vbt_id))) best = i; } @@ -887,7 +877,8 @@ parse_lfp_data(struct drm_i915_private *i915, const struct bdb_lvds_lfp_data *data; const struct bdb_lvds_lfp_data_tail *tail; const struct bdb_lvds_lfp_data_ptrs *ptrs; - const struct lvds_pnp_id *pnp_id; + const struct drm_edid_product_id *pnp_id; + struct drm_printer p; int panel_type = panel->vbt.panel_type; ptrs = bdb_find_section(i915, BDB_LVDS_LFP_DATA_PTRS); @@ -902,7 +893,9 @@ parse_lfp_data(struct drm_i915_private *i915, parse_lfp_panel_dtd(i915, panel, data, ptrs); pnp_id = get_lvds_pnp_id(data, ptrs, panel_type); - dump_pnp_id(i915, pnp_id, "Panel"); + + p = drm_dbg_printer(&i915->drm, DRM_UT_KMS, "Panel"); + drm_edid_print_product_id(&p, pnp_id, false); tail = get_lfp_data_tail(data, ptrs); if (!tail) diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c index 89c26db0730e..23a122ee20c9 100644 --- a/drivers/gpu/drm/i915/display/intel_cursor.c +++ b/drivers/gpu/drm/i915/display/intel_cursor.c @@ -843,6 +843,28 @@ static const struct drm_plane_funcs intel_cursor_plane_funcs = { .format_mod_supported = intel_cursor_format_mod_supported, }; +static void intel_cursor_add_size_hints_property(struct intel_plane *plane) +{ + struct drm_i915_private *i915 = to_i915(plane->base.dev); + const struct drm_mode_config *config = &i915->drm.mode_config; + struct drm_plane_size_hint hints[4]; + int size, max_size, num_hints = 0; + + max_size = min(config->cursor_width, config->cursor_height); + + /* for simplicity only enumerate the supported square+POT sizes */ + for (size = 64; size <= max_size; size *= 2) { + if (drm_WARN_ON(&i915->drm, num_hints >= ARRAY_SIZE(hints))) + break; + + hints[num_hints].width = size; + hints[num_hints].height = size; + num_hints++; + } + + drm_plane_add_size_hints_property(&plane->base, hints, num_hints); +} + struct intel_plane * intel_cursor_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe) @@ -901,6 +923,8 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv, DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180); + intel_cursor_add_size_hints_property(cursor); + zpos = DISPLAY_RUNTIME_INFO(dev_priv)->num_sprites[pipe] + 1; drm_plane_create_zpos_immutable_property(&cursor->base, zpos); diff --git a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c index dade8b59feae..704c549750f9 100644 --- a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c @@ -773,6 +773,13 @@ static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { .atomic_update = ipu_plane_atomic_update, }; +static const struct drm_plane_helper_funcs ipu_primary_plane_helper_funcs = { + .atomic_check = ipu_plane_atomic_check, + .atomic_disable = ipu_plane_atomic_disable, + .atomic_update = ipu_plane_atomic_update, + .get_scanout_buffer = drm_fb_dma_get_scanout_buffer, +}; + bool ipu_plane_atomic_update_pending(struct drm_plane *plane) { struct ipu_plane *ipu_plane = to_ipu_plane(plane); @@ -916,7 +923,10 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, ipu_plane->dma = dma; ipu_plane->dp_flow = dp; - drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); + if (type == DRM_PLANE_TYPE_PRIMARY) + drm_plane_helper_add(&ipu_plane->base, &ipu_primary_plane_helper_funcs); + else + drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG) ret = drm_plane_create_zpos_property(&ipu_plane->base, zpos, 0, diff --git a/drivers/gpu/drm/lima/lima_bcast.c b/drivers/gpu/drm/lima/lima_bcast.c index fbc43f243c54..6d000504e1a4 100644 --- a/drivers/gpu/drm/lima/lima_bcast.c +++ b/drivers/gpu/drm/lima/lima_bcast.c @@ -43,6 +43,18 @@ void lima_bcast_suspend(struct lima_ip *ip) } +int lima_bcast_mask_irq(struct lima_ip *ip) +{ + bcast_write(LIMA_BCAST_BROADCAST_MASK, 0); + bcast_write(LIMA_BCAST_INTERRUPT_MASK, 0); + return 0; +} + +int lima_bcast_reset(struct lima_ip *ip) +{ + return lima_bcast_hw_init(ip); +} + int lima_bcast_init(struct lima_ip *ip) { int i; diff --git a/drivers/gpu/drm/lima/lima_bcast.h b/drivers/gpu/drm/lima/lima_bcast.h index 465ee587bceb..cd08841e4787 100644 --- a/drivers/gpu/drm/lima/lima_bcast.h +++ b/drivers/gpu/drm/lima/lima_bcast.h @@ -13,4 +13,7 @@ void lima_bcast_fini(struct lima_ip *ip); void lima_bcast_enable(struct lima_device *dev, int num_pp); +int lima_bcast_mask_irq(struct lima_ip *ip); +int lima_bcast_reset(struct lima_ip *ip); + #endif diff --git a/drivers/gpu/drm/lima/lima_drv.c b/drivers/gpu/drm/lima/lima_drv.c index 10fd9154cc46..739c865b556f 100644 --- a/drivers/gpu/drm/lima/lima_drv.c +++ b/drivers/gpu/drm/lima/lima_drv.c @@ -371,6 +371,7 @@ static int lima_pdev_probe(struct platform_device *pdev) { struct lima_device *ldev; struct drm_device *ddev; + const struct lima_compatible *comp; int err; err = lima_sched_slab_init(); @@ -384,7 +385,13 @@ static int lima_pdev_probe(struct platform_device *pdev) } ldev->dev = &pdev->dev; - ldev->id = (enum lima_gpu_id)of_device_get_match_data(&pdev->dev); + comp = of_device_get_match_data(&pdev->dev); + if (!comp) { + err = -ENODEV; + goto err_out0; + } + + ldev->id = comp->id; platform_set_drvdata(pdev, ldev); @@ -459,9 +466,17 @@ static void lima_pdev_remove(struct platform_device *pdev) lima_sched_slab_fini(); } +static const struct lima_compatible lima_mali400_data = { + .id = lima_gpu_mali400, +}; + +static const struct lima_compatible lima_mali450_data = { + .id = lima_gpu_mali450, +}; + static const struct of_device_id dt_match[] = { - { .compatible = "arm,mali-400", .data = (void *)lima_gpu_mali400 }, - { .compatible = "arm,mali-450", .data = (void *)lima_gpu_mali450 }, + { .compatible = "arm,mali-400", .data = &lima_mali400_data }, + { .compatible = "arm,mali-450", .data = &lima_mali450_data }, {} }; MODULE_DEVICE_TABLE(of, dt_match); diff --git a/drivers/gpu/drm/lima/lima_drv.h b/drivers/gpu/drm/lima/lima_drv.h index c738d288547b..6706c19b166e 100644 --- a/drivers/gpu/drm/lima/lima_drv.h +++ b/drivers/gpu/drm/lima/lima_drv.h @@ -7,6 +7,7 @@ #include #include "lima_ctx.h" +#include "lima_device.h" extern int lima_sched_timeout_ms; extern uint lima_heap_init_nr_pages; @@ -39,6 +40,10 @@ struct lima_submit { struct lima_sched_task *task; }; +struct lima_compatible { + enum lima_gpu_id id; +}; + static inline struct lima_drm_priv * to_lima_drm_priv(struct drm_file *file) { diff --git a/drivers/gpu/drm/lima/lima_gp.c b/drivers/gpu/drm/lima/lima_gp.c index 6b354e2fb61d..3282997a0358 100644 --- a/drivers/gpu/drm/lima/lima_gp.c +++ b/drivers/gpu/drm/lima/lima_gp.c @@ -233,6 +233,13 @@ static void lima_gp_task_mmu_error(struct lima_sched_pipe *pipe) lima_sched_pipe_task_done(pipe); } +static void lima_gp_task_mask_irq(struct lima_sched_pipe *pipe) +{ + struct lima_ip *ip = pipe->processor[0]; + + gp_write(LIMA_GP_INT_MASK, 0); +} + static int lima_gp_task_recover(struct lima_sched_pipe *pipe) { struct lima_ip *ip = pipe->processor[0]; @@ -338,7 +345,9 @@ int lima_gp_init(struct lima_ip *ip) void lima_gp_fini(struct lima_ip *ip) { + struct lima_device *dev = ip->dev; + devm_free_irq(dev->dev, ip->irq, ip); } int lima_gp_pipe_init(struct lima_device *dev) @@ -365,6 +374,7 @@ int lima_gp_pipe_init(struct lima_device *dev) pipe->task_error = lima_gp_task_error; pipe->task_mmu_error = lima_gp_task_mmu_error; pipe->task_recover = lima_gp_task_recover; + pipe->task_mask_irq = lima_gp_task_mask_irq; return 0; } diff --git a/drivers/gpu/drm/lima/lima_mmu.c b/drivers/gpu/drm/lima/lima_mmu.c index e18317c5ca8c..6611e2836bf0 100644 --- a/drivers/gpu/drm/lima/lima_mmu.c +++ b/drivers/gpu/drm/lima/lima_mmu.c @@ -118,7 +118,12 @@ int lima_mmu_init(struct lima_ip *ip) void lima_mmu_fini(struct lima_ip *ip) { + struct lima_device *dev = ip->dev; + if (ip->id == lima_ip_ppmmu_bcast) + return; + + devm_free_irq(dev->dev, ip->irq, ip); } void lima_mmu_flush_tlb(struct lima_ip *ip) diff --git a/drivers/gpu/drm/lima/lima_pp.c b/drivers/gpu/drm/lima/lima_pp.c index d0d2db0ef1ce..eaab4788dff4 100644 --- a/drivers/gpu/drm/lima/lima_pp.c +++ b/drivers/gpu/drm/lima/lima_pp.c @@ -286,7 +286,9 @@ int lima_pp_init(struct lima_ip *ip) void lima_pp_fini(struct lima_ip *ip) { + struct lima_device *dev = ip->dev; + devm_free_irq(dev->dev, ip->irq, ip); } int lima_pp_bcast_resume(struct lima_ip *ip) @@ -319,7 +321,9 @@ int lima_pp_bcast_init(struct lima_ip *ip) void lima_pp_bcast_fini(struct lima_ip *ip) { + struct lima_device *dev = ip->dev; + devm_free_irq(dev->dev, ip->irq, ip); } static int lima_pp_task_validate(struct lima_sched_pipe *pipe, @@ -429,6 +433,9 @@ static void lima_pp_task_error(struct lima_sched_pipe *pipe) lima_pp_hard_reset(ip); } + + if (pipe->bcast_processor) + lima_bcast_reset(pipe->bcast_processor); } static void lima_pp_task_mmu_error(struct lima_sched_pipe *pipe) @@ -437,6 +444,20 @@ static void lima_pp_task_mmu_error(struct lima_sched_pipe *pipe) lima_sched_pipe_task_done(pipe); } +static void lima_pp_task_mask_irq(struct lima_sched_pipe *pipe) +{ + int i; + + for (i = 0; i < pipe->num_processor; i++) { + struct lima_ip *ip = pipe->processor[i]; + + pp_write(LIMA_PP_INT_MASK, 0); + } + + if (pipe->bcast_processor) + lima_bcast_mask_irq(pipe->bcast_processor); +} + static struct kmem_cache *lima_pp_task_slab; static int lima_pp_task_slab_refcnt; @@ -468,6 +489,7 @@ int lima_pp_pipe_init(struct lima_device *dev) pipe->task_fini = lima_pp_task_fini; pipe->task_error = lima_pp_task_error; pipe->task_mmu_error = lima_pp_task_mmu_error; + pipe->task_mask_irq = lima_pp_task_mask_irq; return 0; } diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c index 00b19adfc888..bbf3f8feab94 100644 --- a/drivers/gpu/drm/lima/lima_sched.c +++ b/drivers/gpu/drm/lima/lima_sched.c @@ -422,12 +422,21 @@ static enum drm_gpu_sched_stat lima_sched_timedout_job(struct drm_sched_job *job */ for (i = 0; i < pipe->num_processor; i++) synchronize_irq(pipe->processor[i]->irq); + if (pipe->bcast_processor) + synchronize_irq(pipe->bcast_processor->irq); if (dma_fence_is_signaled(task->fence)) { DRM_WARN("%s unexpectedly high interrupt latency\n", lima_ip_name(ip)); return DRM_GPU_SCHED_STAT_NOMINAL; } + /* + * The task might still finish while this timeout handler runs. + * To prevent a race condition on its completion, mask all irqs + * on the running core until the next hard reset completes. + */ + pipe->task_mask_irq(pipe); + if (!pipe->error) DRM_ERROR("%s job timeout\n", lima_ip_name(ip)); diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h index 6bd4f3b70109..85b23ba901d5 100644 --- a/drivers/gpu/drm/lima/lima_sched.h +++ b/drivers/gpu/drm/lima/lima_sched.h @@ -80,6 +80,7 @@ struct lima_sched_pipe { void (*task_error)(struct lima_sched_pipe *pipe); void (*task_mmu_error)(struct lima_sched_pipe *pipe); int (*task_recover)(struct lima_sched_pipe *pipe); + void (*task_mask_irq)(struct lima_sched_pipe *pipe); struct work_struct recover_work; }; diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 765e49fd8911..58a0e62eaf18 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -366,6 +366,7 @@ struct drm_crtc_state; struct drm_display_mode; struct drm_plane; struct drm_atomic_state; +struct drm_scanout_buffer; extern const uint32_t mgag200_primary_plane_formats[]; extern const size_t mgag200_primary_plane_formats_size; @@ -379,12 +380,16 @@ void mgag200_primary_plane_helper_atomic_enable(struct drm_plane *plane, struct drm_atomic_state *state); void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane, struct drm_atomic_state *old_state); +int mgag200_primary_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb); + #define MGAG200_PRIMARY_PLANE_HELPER_FUNCS \ DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, \ .atomic_check = mgag200_primary_plane_helper_atomic_check, \ .atomic_update = mgag200_primary_plane_helper_atomic_update, \ .atomic_enable = mgag200_primary_plane_helper_atomic_enable, \ - .atomic_disable = mgag200_primary_plane_helper_atomic_disable + .atomic_disable = mgag200_primary_plane_helper_atomic_disable, \ + .get_scanout_buffer = mgag200_primary_plane_helper_get_scanout_buffer #define MGAG200_PRIMARY_PLANE_FUNCS \ .update_plane = drm_atomic_helper_update_plane, \ diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index e17cb4c5f774..fc54851d3384 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include "mgag200_drv.h" @@ -546,6 +547,23 @@ void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane, msleep(20); } +int mgag200_primary_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb) +{ + struct mga_device *mdev = to_mga_device(plane->dev); + struct iosys_map map = IOSYS_MAP_INIT_VADDR_IOMEM(mdev->vram); + + if (plane->state && plane->state->fb) { + sb->format = plane->state->fb->format; + sb->width = plane->state->fb->width; + sb->height = plane->state->fb->height; + sb->pitch[0] = plane->state->fb->pitches[0]; + sb->map[0] = map; + return 0; + } + return -ENODEV; +} + /* * CRTC */ diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index f28f9a857458..aed5d5b51b43 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -83,7 +83,7 @@ static bool nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos, ktime_t *stime, ktime_t *etime) { - struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)]; + struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc); struct nvif_head *head = &nouveau_crtc(crtc)->head; struct nvif_head_scanoutpos_v0 args; int retry = 20; diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index fb06ee17d9e5..bcda0105160f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -225,12 +225,18 @@ nouveau_dp_detect(struct nouveau_connector *nv_connector, u8 *dpcd = nv_encoder->dp.dpcd; int ret = NOUVEAU_DP_NONE, hpd; - /* If we've already read the DPCD on an eDP device, we don't need to - * reread it as it won't change + /* eDP ports don't support hotplugging - so there's no point in probing eDP ports unless we + * haven't probed them once before. */ - if (connector->connector_type == DRM_MODE_CONNECTOR_eDP && - dpcd[DP_DPCD_REV] != 0) - return NOUVEAU_DP_SST; + if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + if (connector->status == connector_status_connected) + return NOUVEAU_DP_SST; + else if (connector->status == connector_status_disconnected) + return NOUVEAU_DP_NONE; + } + + // Ensure that the aux bus is enabled for probing + drm_dp_dpcd_set_powered(&nv_connector->aux, true); mutex_lock(&nv_encoder->dp.hpd_irq_lock); if (mstm) { @@ -293,6 +299,13 @@ out: if (mstm && !mstm->suspended && ret != NOUVEAU_DP_MST) nv50_mstm_remove(mstm); + /* GSP doesn't like when we try to do aux transactions on a port it considers disconnected, + * and since we don't really have a usecase for that anyway - just disable the aux bus here + * if we've decided the connector is disconnected + */ + if (ret == NOUVEAU_DP_NONE) + drm_dp_dpcd_set_powered(&nv_connector->aux, false); + mutex_unlock(&nv_encoder->dp.hpd_irq_lock); return ret; } diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 154f5bf82980..ab67789e59a2 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -335,6 +335,17 @@ config DRM_PANEL_LG_LG4573 Say Y here if you want to enable support for LG4573 RGB panel. To compile this driver as a module, choose M here. +config DRM_PANEL_LG_SW43408 + tristate "LG SW43408 panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y here if you want to enable support for LG sw43408 panel. + The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per + pixel. It provides a MIPI DSI interface to the host and has a + built-in LED backlight. + config DRM_PANEL_MAGNACHIP_D53E6EA8966 tristate "Magnachip D53E6EA8966 DSI panel" depends on OF && SPI diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 24a02655d726..0b40b010e8e7 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W) += panel-leadtek-ltk050h3146w.o obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o +obj-$(CONFIG_DRM_PANEL_LG_SW43408) += panel-lg-sw43408.o obj-$(CONFIG_DRM_PANEL_MAGNACHIP_D53E6EA8966) += panel-magnachip-d53e6ea8966.o obj-$(CONFIG_DRM_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o obj-$(CONFIG_DRM_PANEL_NEWVISION_NV3051D) += panel-newvision-nv3051d.o diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c new file mode 100644 index 000000000000..115f4702d59f --- /dev/null +++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c @@ -0,0 +1,320 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019-2024 Linaro Ltd + * Author: Sumit Semwal + * Dmitry Baryshkov + */ + +#include +#include +#include +#include +#include +#include + +#include