481 lines
10 KiB
C
481 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2017 NVIDIA CORPORATION. All rights reserved.
|
|
*/
|
|
|
|
#include <drm/drm_atomic.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
#include <drm/drm_fourcc.h>
|
|
#include <drm/drm_plane_helper.h>
|
|
|
|
#include "dc.h"
|
|
#include "plane.h"
|
|
|
|
static void tegra_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
struct tegra_plane *p = to_tegra_plane(plane);
|
|
|
|
drm_plane_cleanup(plane);
|
|
kfree(p);
|
|
}
|
|
|
|
static void tegra_plane_reset(struct drm_plane *plane)
|
|
{
|
|
struct tegra_plane *p = to_tegra_plane(plane);
|
|
struct tegra_plane_state *state;
|
|
|
|
if (plane->state)
|
|
__drm_atomic_helper_plane_destroy_state(plane->state);
|
|
|
|
kfree(plane->state);
|
|
plane->state = NULL;
|
|
|
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
|
if (state) {
|
|
plane->state = &state->base;
|
|
plane->state->plane = plane;
|
|
plane->state->zpos = p->index;
|
|
plane->state->normalized_zpos = p->index;
|
|
}
|
|
}
|
|
|
|
static struct drm_plane_state *
|
|
tegra_plane_atomic_duplicate_state(struct drm_plane *plane)
|
|
{
|
|
struct tegra_plane_state *state = to_tegra_plane_state(plane->state);
|
|
struct tegra_plane_state *copy;
|
|
unsigned int i;
|
|
|
|
copy = kmalloc(sizeof(*copy), GFP_KERNEL);
|
|
if (!copy)
|
|
return NULL;
|
|
|
|
__drm_atomic_helper_plane_duplicate_state(plane, ©->base);
|
|
copy->tiling = state->tiling;
|
|
copy->format = state->format;
|
|
copy->swap = state->swap;
|
|
copy->bottom_up = state->bottom_up;
|
|
copy->opaque = state->opaque;
|
|
|
|
for (i = 0; i < 2; i++)
|
|
copy->blending[i] = state->blending[i];
|
|
|
|
return ©->base;
|
|
}
|
|
|
|
static void tegra_plane_atomic_destroy_state(struct drm_plane *plane,
|
|
struct drm_plane_state *state)
|
|
{
|
|
__drm_atomic_helper_plane_destroy_state(state);
|
|
kfree(state);
|
|
}
|
|
|
|
static bool tegra_plane_format_mod_supported(struct drm_plane *plane,
|
|
uint32_t format,
|
|
uint64_t modifier)
|
|
{
|
|
const struct drm_format_info *info = drm_format_info(format);
|
|
|
|
if (modifier == DRM_FORMAT_MOD_LINEAR)
|
|
return true;
|
|
|
|
if (info->num_planes == 1)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
const struct drm_plane_funcs tegra_plane_funcs = {
|
|
.update_plane = drm_atomic_helper_update_plane,
|
|
.disable_plane = drm_atomic_helper_disable_plane,
|
|
.destroy = tegra_plane_destroy,
|
|
.reset = tegra_plane_reset,
|
|
.atomic_duplicate_state = tegra_plane_atomic_duplicate_state,
|
|
.atomic_destroy_state = tegra_plane_atomic_destroy_state,
|
|
.format_mod_supported = tegra_plane_format_mod_supported,
|
|
};
|
|
|
|
int tegra_plane_state_add(struct tegra_plane *plane,
|
|
struct drm_plane_state *state)
|
|
{
|
|
struct drm_crtc_state *crtc_state;
|
|
struct tegra_dc_state *tegra;
|
|
int err;
|
|
|
|
/* Propagate errors from allocation or locking failures. */
|
|
crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
|
|
if (IS_ERR(crtc_state))
|
|
return PTR_ERR(crtc_state);
|
|
|
|
/* Check plane state for visibility and calculate clipping bounds */
|
|
err = drm_atomic_helper_check_plane_state(state, crtc_state,
|
|
0, INT_MAX, true, true);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
tegra = to_dc_state(crtc_state);
|
|
|
|
tegra->planes |= WIN_A_ACT_REQ << plane->index;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int tegra_plane_format(u32 fourcc, u32 *format, u32 *swap)
|
|
{
|
|
/* assume no swapping of fetched data */
|
|
if (swap)
|
|
*swap = BYTE_SWAP_NOSWAP;
|
|
|
|
switch (fourcc) {
|
|
case DRM_FORMAT_ARGB4444:
|
|
*format = WIN_COLOR_DEPTH_B4G4R4A4;
|
|
break;
|
|
|
|
case DRM_FORMAT_ARGB1555:
|
|
*format = WIN_COLOR_DEPTH_B5G5R5A1;
|
|
break;
|
|
|
|
case DRM_FORMAT_RGB565:
|
|
*format = WIN_COLOR_DEPTH_B5G6R5;
|
|
break;
|
|
|
|
case DRM_FORMAT_RGBA5551:
|
|
*format = WIN_COLOR_DEPTH_A1B5G5R5;
|
|
break;
|
|
|
|
case DRM_FORMAT_ARGB8888:
|
|
*format = WIN_COLOR_DEPTH_B8G8R8A8;
|
|
break;
|
|
|
|
case DRM_FORMAT_ABGR8888:
|
|
*format = WIN_COLOR_DEPTH_R8G8B8A8;
|
|
break;
|
|
|
|
case DRM_FORMAT_ABGR4444:
|
|
*format = WIN_COLOR_DEPTH_R4G4B4A4;
|
|
break;
|
|
|
|
case DRM_FORMAT_ABGR1555:
|
|
*format = WIN_COLOR_DEPTH_R5G5B5A;
|
|
break;
|
|
|
|
case DRM_FORMAT_BGRA5551:
|
|
*format = WIN_COLOR_DEPTH_AR5G5B5;
|
|
break;
|
|
|
|
case DRM_FORMAT_XRGB1555:
|
|
*format = WIN_COLOR_DEPTH_B5G5R5X1;
|
|
break;
|
|
|
|
case DRM_FORMAT_RGBX5551:
|
|
*format = WIN_COLOR_DEPTH_X1B5G5R5;
|
|
break;
|
|
|
|
case DRM_FORMAT_XBGR1555:
|
|
*format = WIN_COLOR_DEPTH_R5G5B5X1;
|
|
break;
|
|
|
|
case DRM_FORMAT_BGRX5551:
|
|
*format = WIN_COLOR_DEPTH_X1R5G5B5;
|
|
break;
|
|
|
|
case DRM_FORMAT_BGR565:
|
|
*format = WIN_COLOR_DEPTH_R5G6B5;
|
|
break;
|
|
|
|
case DRM_FORMAT_BGRA8888:
|
|
*format = WIN_COLOR_DEPTH_A8R8G8B8;
|
|
break;
|
|
|
|
case DRM_FORMAT_RGBA8888:
|
|
*format = WIN_COLOR_DEPTH_A8B8G8R8;
|
|
break;
|
|
|
|
case DRM_FORMAT_XRGB8888:
|
|
*format = WIN_COLOR_DEPTH_B8G8R8X8;
|
|
break;
|
|
|
|
case DRM_FORMAT_XBGR8888:
|
|
*format = WIN_COLOR_DEPTH_R8G8B8X8;
|
|
break;
|
|
|
|
case DRM_FORMAT_UYVY:
|
|
*format = WIN_COLOR_DEPTH_YCbCr422;
|
|
break;
|
|
|
|
case DRM_FORMAT_YUYV:
|
|
if (!swap)
|
|
return -EINVAL;
|
|
|
|
*format = WIN_COLOR_DEPTH_YCbCr422;
|
|
*swap = BYTE_SWAP_SWAP2;
|
|
break;
|
|
|
|
case DRM_FORMAT_YUV420:
|
|
*format = WIN_COLOR_DEPTH_YCbCr420P;
|
|
break;
|
|
|
|
case DRM_FORMAT_YUV422:
|
|
*format = WIN_COLOR_DEPTH_YCbCr422P;
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool tegra_plane_format_is_yuv(unsigned int format, bool *planar)
|
|
{
|
|
switch (format) {
|
|
case WIN_COLOR_DEPTH_YCbCr422:
|
|
case WIN_COLOR_DEPTH_YUV422:
|
|
if (planar)
|
|
*planar = false;
|
|
|
|
return true;
|
|
|
|
case WIN_COLOR_DEPTH_YCbCr420P:
|
|
case WIN_COLOR_DEPTH_YUV420P:
|
|
case WIN_COLOR_DEPTH_YCbCr422P:
|
|
case WIN_COLOR_DEPTH_YUV422P:
|
|
case WIN_COLOR_DEPTH_YCbCr422R:
|
|
case WIN_COLOR_DEPTH_YUV422R:
|
|
case WIN_COLOR_DEPTH_YCbCr422RA:
|
|
case WIN_COLOR_DEPTH_YUV422RA:
|
|
if (planar)
|
|
*planar = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
if (planar)
|
|
*planar = false;
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool __drm_format_has_alpha(u32 format)
|
|
{
|
|
switch (format) {
|
|
case DRM_FORMAT_ARGB1555:
|
|
case DRM_FORMAT_RGBA5551:
|
|
case DRM_FORMAT_ABGR8888:
|
|
case DRM_FORMAT_ARGB8888:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static int tegra_plane_format_get_alpha(unsigned int opaque,
|
|
unsigned int *alpha)
|
|
{
|
|
if (tegra_plane_format_is_yuv(opaque, NULL)) {
|
|
*alpha = opaque;
|
|
return 0;
|
|
}
|
|
|
|
switch (opaque) {
|
|
case WIN_COLOR_DEPTH_B5G5R5X1:
|
|
*alpha = WIN_COLOR_DEPTH_B5G5R5A1;
|
|
return 0;
|
|
|
|
case WIN_COLOR_DEPTH_X1B5G5R5:
|
|
*alpha = WIN_COLOR_DEPTH_A1B5G5R5;
|
|
return 0;
|
|
|
|
case WIN_COLOR_DEPTH_R8G8B8X8:
|
|
*alpha = WIN_COLOR_DEPTH_R8G8B8A8;
|
|
return 0;
|
|
|
|
case WIN_COLOR_DEPTH_B8G8R8X8:
|
|
*alpha = WIN_COLOR_DEPTH_B8G8R8A8;
|
|
return 0;
|
|
|
|
case WIN_COLOR_DEPTH_B5G6R5:
|
|
*alpha = opaque;
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* This is applicable to Tegra20 and Tegra30 only where the opaque formats can
|
|
* be emulated using the alpha formats and alpha blending disabled.
|
|
*/
|
|
static int tegra_plane_setup_opacity(struct tegra_plane *tegra,
|
|
struct tegra_plane_state *state)
|
|
{
|
|
unsigned int format;
|
|
int err;
|
|
|
|
switch (state->format) {
|
|
case WIN_COLOR_DEPTH_B5G5R5A1:
|
|
case WIN_COLOR_DEPTH_A1B5G5R5:
|
|
case WIN_COLOR_DEPTH_R8G8B8A8:
|
|
case WIN_COLOR_DEPTH_B8G8R8A8:
|
|
state->opaque = false;
|
|
break;
|
|
|
|
default:
|
|
err = tegra_plane_format_get_alpha(state->format, &format);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
state->format = format;
|
|
state->opaque = true;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tegra_plane_check_transparency(struct tegra_plane *tegra,
|
|
struct tegra_plane_state *state)
|
|
{
|
|
struct drm_plane_state *old, *plane_state;
|
|
struct drm_plane *plane;
|
|
|
|
old = drm_atomic_get_old_plane_state(state->base.state, &tegra->base);
|
|
|
|
/* check if zpos / transparency changed */
|
|
if (old->normalized_zpos == state->base.normalized_zpos &&
|
|
to_tegra_plane_state(old)->opaque == state->opaque)
|
|
return 0;
|
|
|
|
/* include all sibling planes into this commit */
|
|
drm_for_each_plane(plane, tegra->base.dev) {
|
|
struct tegra_plane *p = to_tegra_plane(plane);
|
|
|
|
/* skip this plane and planes on different CRTCs */
|
|
if (p == tegra || p->dc != tegra->dc)
|
|
continue;
|
|
|
|
plane_state = drm_atomic_get_plane_state(state->base.state,
|
|
plane);
|
|
if (IS_ERR(plane_state))
|
|
return PTR_ERR(plane_state);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static unsigned int tegra_plane_get_overlap_index(struct tegra_plane *plane,
|
|
struct tegra_plane *other)
|
|
{
|
|
unsigned int index = 0, i;
|
|
|
|
WARN_ON(plane == other);
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
if (i == plane->index)
|
|
continue;
|
|
|
|
if (i == other->index)
|
|
break;
|
|
|
|
index++;
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
static void tegra_plane_update_transparency(struct tegra_plane *tegra,
|
|
struct tegra_plane_state *state)
|
|
{
|
|
struct drm_plane_state *new;
|
|
struct drm_plane *plane;
|
|
unsigned int i;
|
|
|
|
for_each_new_plane_in_state(state->base.state, plane, new, i) {
|
|
struct tegra_plane *p = to_tegra_plane(plane);
|
|
unsigned index;
|
|
|
|
/* skip this plane and planes on different CRTCs */
|
|
if (p == tegra || p->dc != tegra->dc)
|
|
continue;
|
|
|
|
index = tegra_plane_get_overlap_index(tegra, p);
|
|
|
|
if (new->fb && __drm_format_has_alpha(new->fb->format->format))
|
|
state->blending[index].alpha = true;
|
|
else
|
|
state->blending[index].alpha = false;
|
|
|
|
if (new->normalized_zpos > state->base.normalized_zpos)
|
|
state->blending[index].top = true;
|
|
else
|
|
state->blending[index].top = false;
|
|
|
|
/*
|
|
* Missing framebuffer means that plane is disabled, in this
|
|
* case mark B / C window as top to be able to differentiate
|
|
* windows indices order in regards to zPos for the middle
|
|
* window X / Y registers programming.
|
|
*/
|
|
if (!new->fb)
|
|
state->blending[index].top = (index == 1);
|
|
}
|
|
}
|
|
|
|
static int tegra_plane_setup_transparency(struct tegra_plane *tegra,
|
|
struct tegra_plane_state *state)
|
|
{
|
|
struct tegra_plane_state *tegra_state;
|
|
struct drm_plane_state *new;
|
|
struct drm_plane *plane;
|
|
int err;
|
|
|
|
/*
|
|
* If planes zpos / transparency changed, sibling planes blending
|
|
* state may require adjustment and in this case they will be included
|
|
* into this atom commit, otherwise blending state is unchanged.
|
|
*/
|
|
err = tegra_plane_check_transparency(tegra, state);
|
|
if (err <= 0)
|
|
return err;
|
|
|
|
/*
|
|
* All planes are now in the atomic state, walk them up and update
|
|
* transparency state for each plane.
|
|
*/
|
|
drm_for_each_plane(plane, tegra->base.dev) {
|
|
struct tegra_plane *p = to_tegra_plane(plane);
|
|
|
|
/* skip planes on different CRTCs */
|
|
if (p->dc != tegra->dc)
|
|
continue;
|
|
|
|
new = drm_atomic_get_new_plane_state(state->base.state, plane);
|
|
tegra_state = to_tegra_plane_state(new);
|
|
|
|
/*
|
|
* There is no need to update blending state for the disabled
|
|
* plane.
|
|
*/
|
|
if (new->fb)
|
|
tegra_plane_update_transparency(p, tegra_state);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int tegra_plane_setup_legacy_state(struct tegra_plane *tegra,
|
|
struct tegra_plane_state *state)
|
|
{
|
|
int err;
|
|
|
|
err = tegra_plane_setup_opacity(tegra, state);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = tegra_plane_setup_transparency(tegra, state);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|