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original_kernel/include/asm-sparc64/head.h

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* $Id: head.h,v 1.30 1997/08/08 08:34:33 jj Exp $ */
#ifndef _SPARC64_HEAD_H
#define _SPARC64_HEAD_H
#include <asm/pstate.h>
[SPARC64]: Add initial code to twiddle %gl on trap entry/exit. Instead of setting/clearing PSTATE_AG we have to change the %gl register value on sun4v. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-06 13:29:28 +08:00
/* wrpr %g0, val, %gl */
#define SET_GL(val) \
.word 0xa1902000 | val
[SPARC64]: Add GET_GL_GLOBAL() macro for SUN4V. So we can read the %gl register for debugging. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-17 08:22:26 +08:00
/* rdpr %gl, %gN */
#define GET_GL_GLOBAL(N) \
.word 0x81540000 | (N << 25)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#define KERNBASE 0x400000
#define PTREGS_OFF (STACK_BIAS + STACKFRAME_SZ)
#define __CHEETAH_ID 0x003e0014
#define __JALAPENO_ID 0x003e0016
[SPARC64]: Refine code sequences to get the cpu id. On uniprocessor, it's always zero for optimize that. On SMP, the jmpl to the stub kills the return address stack in the cpu branch prediction logic, so expand the code sequence inline and use a code patching section to fix things up. This also always better and explicit register selection, which will be taken advantage of in a future changeset. The hard_smp_processor_id() function is big, so do not inline it. Fix up tests for Jalapeno to also test for Serrano chips too. These tests want "jbus Ultra-IIIi" cases to match, so that is what we should test for. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-27 15:27:19 +08:00
#define __SERRANO_ID 0x003e0022
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#define CHEETAH_MANUF 0x003e
[SPARC64]: Add missing IDs for newer cpus. Also, the us3_cpufreq driver can work on Ultra-IV and IV+. They use the SAFARI bus register to control the clock divider just like Ultra-III and III+ do. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-28 13:50:06 +08:00
#define CHEETAH_IMPL 0x0014 /* Ultra-III */
#define CHEETAH_PLUS_IMPL 0x0015 /* Ultra-III+ */
#define JALAPENO_IMPL 0x0016 /* Ultra-IIIi */
#define JAGUAR_IMPL 0x0018 /* Ultra-IV */
#define PANTHER_IMPL 0x0019 /* Ultra-IV+ */
#define SERRANO_IMPL 0x0022 /* Ultra-IIIi+ */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[SPARC64]: Detect sun4v early in boot process. We look for "SUNW,sun4v" in the 'compatible' property of the root OBP device tree node. Protect every %ver register access, to make sure it is not touched on sun4v, as %ver is hyperprivileged there. Lock kernel TLB entries using hypervisor calls instead of calls into OBP. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-09 18:52:44 +08:00
#define BRANCH_IF_SUN4V(tmp1,label) \
sethi %hi(is_sun4v), %tmp1; \
lduw [%tmp1 + %lo(is_sun4v)], %tmp1; \
brnz,pn %tmp1, label; \
nop
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \
rdpr %ver, %tmp1; \
sethi %hi(__CHEETAH_ID), %tmp2; \
srlx %tmp1, 32, %tmp1; \
or %tmp2, %lo(__CHEETAH_ID), %tmp2;\
cmp %tmp1, %tmp2; \
be,pn %icc, label; \
nop;
#define BRANCH_IF_JALAPENO(tmp1,tmp2,label) \
rdpr %ver, %tmp1; \
sethi %hi(__JALAPENO_ID), %tmp2; \
srlx %tmp1, 32, %tmp1; \
or %tmp2, %lo(__JALAPENO_ID), %tmp2;\
cmp %tmp1, %tmp2; \
be,pn %icc, label; \
nop;
#define BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(tmp1,tmp2,label) \
rdpr %ver, %tmp1; \
srlx %tmp1, (32 + 16), %tmp2; \
cmp %tmp2, CHEETAH_MANUF; \
bne,pt %xcc, 99f; \
sllx %tmp1, 16, %tmp1; \
srlx %tmp1, (32 + 16), %tmp2; \
cmp %tmp2, CHEETAH_PLUS_IMPL; \
bgeu,pt %xcc, label; \
99: nop;
#define BRANCH_IF_ANY_CHEETAH(tmp1,tmp2,label) \
rdpr %ver, %tmp1; \
srlx %tmp1, (32 + 16), %tmp2; \
cmp %tmp2, CHEETAH_MANUF; \
bne,pt %xcc, 99f; \
sllx %tmp1, 16, %tmp1; \
srlx %tmp1, (32 + 16), %tmp2; \
cmp %tmp2, CHEETAH_IMPL; \
bgeu,pt %xcc, label; \
99: nop;
#endif /* !(_SPARC64_HEAD_H) */