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authorBlue Swirl <blauwirbel@gmail.com>2011-09-18 14:55:46 +0000
committerBlue Swirl <blauwirbel@gmail.com>2012-03-18 12:21:52 +0000
commite141ab52d2ea5d0bc6ad3b1ad32841127ca04adc (patch)
tree9290ef9ce78430649ba092b1c755577c48bcf81c /softmmu_template.h
parent6a18ae2d2947532d5c26439548afa0481c4529f9 (diff)
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softmmu templates: optionally pass CPUState to memory access functions
Optionally, make memory access helpers take a parameter for CPUState instead of relying on global env. On most targets, perform simple moves to reorder registers. On i386, switch from regparm(3) calling convention to standard stack-based version. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'softmmu_template.h')
-rw-r--r--softmmu_template.h84
1 files changed, 57 insertions, 27 deletions
diff --git a/softmmu_template.h b/softmmu_template.h
index d633bb5..afcab1e 100644
--- a/softmmu_template.h
+++ b/softmmu_template.h
@@ -54,10 +54,24 @@
#define ADDR_READ addr_read
#endif
-static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr,
+#ifndef CONFIG_TCG_PASS_AREG0
+#define ENV_PARAM
+#define ENV_VAR
+#define CPU_PREFIX
+#define HELPER_PREFIX __
+#else
+#define ENV_PARAM CPUArchState *env,
+#define ENV_VAR env,
+#define CPU_PREFIX cpu_
+#define HELPER_PREFIX helper_
+#endif
+
+static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(ENV_PARAM
+ target_ulong addr,
int mmu_idx,
void *retaddr);
-static inline DATA_TYPE glue(io_read, SUFFIX)(target_phys_addr_t physaddr,
+static inline DATA_TYPE glue(io_read, SUFFIX)(ENV_PARAM
+ target_phys_addr_t physaddr,
target_ulong addr,
void *retaddr)
{
@@ -89,7 +103,10 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(target_phys_addr_t physaddr,
}
/* handle all cases except unaligned access which span two pages */
-DATA_TYPE glue(glue(__ld, SUFFIX), MMUSUFFIX)(target_ulong addr, int mmu_idx)
+DATA_TYPE
+glue(glue(glue(HELPER_PREFIX, ld), SUFFIX), MMUSUFFIX)(ENV_PARAM
+ target_ulong addr,
+ int mmu_idx)
{
DATA_TYPE res;
int index;
@@ -110,22 +127,22 @@ DATA_TYPE glue(glue(__ld, SUFFIX), MMUSUFFIX)(target_ulong addr, int mmu_idx)
goto do_unaligned_access;
retaddr = GETPC();
ioaddr = env->iotlb[mmu_idx][index];
- res = glue(io_read, SUFFIX)(ioaddr, addr, retaddr);
+ res = glue(io_read, SUFFIX)(ENV_VAR ioaddr, addr, retaddr);
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
/* slow unaligned access (it spans two pages or IO) */
do_unaligned_access:
retaddr = GETPC();
#ifdef ALIGNED_ONLY
- do_unaligned_access(addr, READ_ACCESS_TYPE, mmu_idx, retaddr);
+ do_unaligned_access(ENV_VAR addr, READ_ACCESS_TYPE, mmu_idx, retaddr);
#endif
- res = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr,
+ res = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(ENV_VAR addr,
mmu_idx, retaddr);
} else {
/* unaligned/aligned access in the same page */
#ifdef ALIGNED_ONLY
if ((addr & (DATA_SIZE - 1)) != 0) {
retaddr = GETPC();
- do_unaligned_access(addr, READ_ACCESS_TYPE, mmu_idx, retaddr);
+ do_unaligned_access(ENV_VAR addr, READ_ACCESS_TYPE, mmu_idx, retaddr);
}
#endif
addend = env->tlb_table[mmu_idx][index].addend;
@@ -136,7 +153,7 @@ DATA_TYPE glue(glue(__ld, SUFFIX), MMUSUFFIX)(target_ulong addr, int mmu_idx)
retaddr = GETPC();
#ifdef ALIGNED_ONLY
if ((addr & (DATA_SIZE - 1)) != 0)
- do_unaligned_access(addr, READ_ACCESS_TYPE, mmu_idx, retaddr);
+ do_unaligned_access(ENV_VAR addr, READ_ACCESS_TYPE, mmu_idx, retaddr);
#endif
tlb_fill(env, addr, READ_ACCESS_TYPE, mmu_idx, retaddr);
goto redo;
@@ -145,9 +162,11 @@ DATA_TYPE glue(glue(__ld, SUFFIX), MMUSUFFIX)(target_ulong addr, int mmu_idx)
}
/* handle all unaligned cases */
-static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr,
- int mmu_idx,
- void *retaddr)
+static DATA_TYPE
+glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(ENV_PARAM
+ target_ulong addr,
+ int mmu_idx,
+ void *retaddr)
{
DATA_TYPE res, res1, res2;
int index, shift;
@@ -164,15 +183,15 @@ static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr,
if ((addr & (DATA_SIZE - 1)) != 0)
goto do_unaligned_access;
ioaddr = env->iotlb[mmu_idx][index];
- res = glue(io_read, SUFFIX)(ioaddr, addr, retaddr);
+ res = glue(io_read, SUFFIX)(ENV_VAR ioaddr, addr, retaddr);
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
do_unaligned_access:
/* slow unaligned access (it spans two pages) */
addr1 = addr & ~(DATA_SIZE - 1);
addr2 = addr1 + DATA_SIZE;
- res1 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr1,
+ res1 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(ENV_VAR addr1,
mmu_idx, retaddr);
- res2 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr2,
+ res2 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(ENV_VAR addr2,
mmu_idx, retaddr);
shift = (addr & (DATA_SIZE - 1)) * 8;
#ifdef TARGET_WORDS_BIGENDIAN
@@ -196,12 +215,14 @@ static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr,
#ifndef SOFTMMU_CODE_ACCESS
-static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr,
+static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(ENV_PARAM
+ target_ulong addr,
DATA_TYPE val,
int mmu_idx,
void *retaddr);
-static inline void glue(io_write, SUFFIX)(target_phys_addr_t physaddr,
+static inline void glue(io_write, SUFFIX)(ENV_PARAM
+ target_phys_addr_t physaddr,
DATA_TYPE val,
target_ulong addr,
void *retaddr)
@@ -231,8 +252,10 @@ static inline void glue(io_write, SUFFIX)(target_phys_addr_t physaddr,
#endif /* SHIFT > 2 */
}
-void glue(glue(__st, SUFFIX), MMUSUFFIX)(target_ulong addr, DATA_TYPE val,
- int mmu_idx)
+void glue(glue(glue(HELPER_PREFIX, st), SUFFIX), MMUSUFFIX)(ENV_PARAM
+ target_ulong addr,
+ DATA_TYPE val,
+ int mmu_idx)
{
target_phys_addr_t ioaddr;
unsigned long addend;
@@ -250,21 +273,21 @@ void glue(glue(__st, SUFFIX), MMUSUFFIX)(target_ulong addr, DATA_TYPE val,
goto do_unaligned_access;
retaddr = GETPC();
ioaddr = env->iotlb[mmu_idx][index];
- glue(io_write, SUFFIX)(ioaddr, val, addr, retaddr);
+ glue(io_write, SUFFIX)(ENV_VAR ioaddr, val, addr, retaddr);
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
do_unaligned_access:
retaddr = GETPC();
#ifdef ALIGNED_ONLY
- do_unaligned_access(addr, 1, mmu_idx, retaddr);
+ do_unaligned_access(ENV_VAR addr, 1, mmu_idx, retaddr);
#endif
- glue(glue(slow_st, SUFFIX), MMUSUFFIX)(addr, val,
+ glue(glue(slow_st, SUFFIX), MMUSUFFIX)(ENV_VAR addr, val,
mmu_idx, retaddr);
} else {
/* aligned/unaligned access in the same page */
#ifdef ALIGNED_ONLY
if ((addr & (DATA_SIZE - 1)) != 0) {
retaddr = GETPC();
- do_unaligned_access(addr, 1, mmu_idx, retaddr);
+ do_unaligned_access(ENV_VAR addr, 1, mmu_idx, retaddr);
}
#endif
addend = env->tlb_table[mmu_idx][index].addend;
@@ -275,7 +298,7 @@ void glue(glue(__st, SUFFIX), MMUSUFFIX)(target_ulong addr, DATA_TYPE val,
retaddr = GETPC();
#ifdef ALIGNED_ONLY
if ((addr & (DATA_SIZE - 1)) != 0)
- do_unaligned_access(addr, 1, mmu_idx, retaddr);
+ do_unaligned_access(ENV_VAR addr, 1, mmu_idx, retaddr);
#endif
tlb_fill(env, addr, 1, mmu_idx, retaddr);
goto redo;
@@ -283,7 +306,8 @@ void glue(glue(__st, SUFFIX), MMUSUFFIX)(target_ulong addr, DATA_TYPE val,
}
/* handles all unaligned cases */
-static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr,
+static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(ENV_PARAM
+ target_ulong addr,
DATA_TYPE val,
int mmu_idx,
void *retaddr)
@@ -302,7 +326,7 @@ static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr,
if ((addr & (DATA_SIZE - 1)) != 0)
goto do_unaligned_access;
ioaddr = env->iotlb[mmu_idx][index];
- glue(io_write, SUFFIX)(ioaddr, val, addr, retaddr);
+ glue(io_write, SUFFIX)(ENV_VAR ioaddr, val, addr, retaddr);
} else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) {
do_unaligned_access:
/* XXX: not efficient, but simple */
@@ -310,10 +334,12 @@ static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr,
* previous page from the TLB cache. */
for(i = DATA_SIZE - 1; i >= 0; i--) {
#ifdef TARGET_WORDS_BIGENDIAN
- glue(slow_stb, MMUSUFFIX)(addr + i, val >> (((DATA_SIZE - 1) * 8) - (i * 8)),
+ glue(slow_stb, MMUSUFFIX)(ENV_VAR addr + i,
+ val >> (((DATA_SIZE - 1) * 8) - (i * 8)),
mmu_idx, retaddr);
#else
- glue(slow_stb, MMUSUFFIX)(addr + i, val >> (i * 8),
+ glue(slow_stb, MMUSUFFIX)(ENV_VAR addr + i,
+ val >> (i * 8),
mmu_idx, retaddr);
#endif
}
@@ -338,3 +364,7 @@ static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr,
#undef USUFFIX
#undef DATA_SIZE
#undef ADDR_READ
+#undef ENV_PARAM
+#undef ENV_VAR
+#undef CPU_PREFIX
+#undef HELPER_PREFIX