/*
* Software MMU support
- *
+ *
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#if DATA_SIZE == 8
#define SUFFIX q
#error unsupported data size
#endif
-#if ACCESS_TYPE == 0
-
-#define CPU_MEM_INDEX 0
-#define MMUSUFFIX _mmu
-
-#elif ACCESS_TYPE == 1
+#if ACCESS_TYPE < (NB_MMU_MODES)
-#define CPU_MEM_INDEX 1
+#define CPU_MMU_INDEX ACCESS_TYPE
#define MMUSUFFIX _mmu
-#elif ACCESS_TYPE == 2
+#elif ACCESS_TYPE == (NB_MMU_MODES)
-#define CPU_MEM_INDEX ((env->hflags & HF_CPL_MASK) == 3)
+#define CPU_MMU_INDEX (cpu_mmu_index(env))
#define MMUSUFFIX _mmu
-#elif ACCESS_TYPE == 3
+#elif ACCESS_TYPE == (NB_MMU_MODES + 1)
-#define CPU_MEM_INDEX ((env->hflags & HF_CPL_MASK) == 3)
+#define CPU_MMU_INDEX (cpu_mmu_index(env))
#define MMUSUFFIX _cmmu
#else
#define RES_TYPE int
#endif
-
-DATA_TYPE REGPARM(1) glue(glue(__ld, SUFFIX), MMUSUFFIX)(unsigned long addr,
- int is_user);
-void REGPARM(2) glue(glue(__st, SUFFIX), MMUSUFFIX)(unsigned long addr, DATA_TYPE v, int is_user);
-
-#if (DATA_SIZE <= 4) && defined(__i386__) && (ACCESS_TYPE <= 1) && defined(ASM_SOFTMMU)
-
-static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(void *ptr)
-{
- int res;
-
- asm volatile ("movl %1, %%edx\n"
- "movl %1, %%eax\n"
- "shrl %3, %%edx\n"
- "andl %4, %%eax\n"
- "andl %2, %%edx\n"
- "leal %5(%%edx, %%ebp), %%edx\n"
- "cmpl (%%edx), %%eax\n"
- "movl %1, %%eax\n"
- "je 1f\n"
- "pushl %6\n"
- "call %7\n"
- "popl %%edx\n"
- "movl %%eax, %0\n"
- "jmp 2f\n"
- "1:\n"
- "addl 4(%%edx), %%eax\n"
-#if DATA_SIZE == 1
- "movzbl (%%eax), %0\n"
-#elif DATA_SIZE == 2
- "movzwl (%%eax), %0\n"
-#elif DATA_SIZE == 4
- "movl (%%eax), %0\n"
-#else
-#error unsupported size
-#endif
- "2:\n"
- : "=r" (res)
- : "r" (ptr),
- "i" ((CPU_TLB_SIZE - 1) << 3),
- "i" (TARGET_PAGE_BITS - 3),
- "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)),
- "m" (*(uint32_t *)offsetof(CPUState, tlb_read[CPU_MEM_INDEX][0].address)),
- "i" (CPU_MEM_INDEX),
- "m" (*(uint8_t *)&glue(glue(__ld, SUFFIX), MMUSUFFIX))
- : "%eax", "%ecx", "%edx", "memory", "cc");
- return res;
-}
-
-#if DATA_SIZE <= 2
-static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(void *ptr)
-{
- int res;
-
- asm volatile ("movl %1, %%edx\n"
- "movl %1, %%eax\n"
- "shrl %3, %%edx\n"
- "andl %4, %%eax\n"
- "andl %2, %%edx\n"
- "leal %5(%%edx, %%ebp), %%edx\n"
- "cmpl (%%edx), %%eax\n"
- "movl %1, %%eax\n"
- "je 1f\n"
- "pushl %6\n"
- "call %7\n"
- "popl %%edx\n"
-#if DATA_SIZE == 1
- "movsbl %%al, %0\n"
-#elif DATA_SIZE == 2
- "movswl %%ax, %0\n"
-#else
-#error unsupported size
-#endif
- "jmp 2f\n"
- "1:\n"
- "addl 4(%%edx), %%eax\n"
-#if DATA_SIZE == 1
- "movsbl (%%eax), %0\n"
-#elif DATA_SIZE == 2
- "movswl (%%eax), %0\n"
+#if ACCESS_TYPE == (NB_MMU_MODES + 1)
+#define ADDR_READ addr_code
#else
-#error unsupported size
-#endif
- "2:\n"
- : "=r" (res)
- : "r" (ptr),
- "i" ((CPU_TLB_SIZE - 1) << 3),
- "i" (TARGET_PAGE_BITS - 3),
- "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)),
- "m" (*(uint32_t *)offsetof(CPUState, tlb_read[CPU_MEM_INDEX][0].address)),
- "i" (CPU_MEM_INDEX),
- "m" (*(uint8_t *)&glue(glue(__ld, SUFFIX), MMUSUFFIX))
- : "%eax", "%ecx", "%edx", "memory", "cc");
- return res;
-}
+#define ADDR_READ addr_read
#endif
-static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(void *ptr, RES_TYPE v)
-{
- asm volatile ("movl %0, %%edx\n"
- "movl %0, %%eax\n"
- "shrl %3, %%edx\n"
- "andl %4, %%eax\n"
- "andl %2, %%edx\n"
- "leal %5(%%edx, %%ebp), %%edx\n"
- "cmpl (%%edx), %%eax\n"
- "movl %0, %%eax\n"
- "je 1f\n"
-#if DATA_SIZE == 1
- "movzbl %b1, %%edx\n"
-#elif DATA_SIZE == 2
- "movzwl %w1, %%edx\n"
-#elif DATA_SIZE == 4
- "movl %1, %%edx\n"
-#else
-#error unsupported size
-#endif
- "pushl %6\n"
- "call %7\n"
- "popl %%eax\n"
- "jmp 2f\n"
- "1:\n"
- "addl 4(%%edx), %%eax\n"
-#if DATA_SIZE == 1
- "movb %b1, (%%eax)\n"
-#elif DATA_SIZE == 2
- "movw %w1, (%%eax)\n"
-#elif DATA_SIZE == 4
- "movl %1, (%%eax)\n"
-#else
-#error unsupported size
-#endif
- "2:\n"
- :
- : "r" (ptr),
-/* NOTE: 'q' would be needed as constraint, but we could not use it
- with T1 ! */
- "r" (v),
- "i" ((CPU_TLB_SIZE - 1) << 3),
- "i" (TARGET_PAGE_BITS - 3),
- "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)),
- "m" (*(uint32_t *)offsetof(CPUState, tlb_write[CPU_MEM_INDEX][0].address)),
- "i" (CPU_MEM_INDEX),
- "m" (*(uint8_t *)&glue(glue(__st, SUFFIX), MMUSUFFIX))
- : "%eax", "%ecx", "%edx", "memory", "cc");
-}
-
-#else
-
/* generic load/store macros */
-static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(void *ptr)
+static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(target_ulong ptr)
{
- int index;
+ int page_index;
RES_TYPE res;
- unsigned long addr, physaddr;
- int is_user;
-
- addr = (unsigned long)ptr;
- index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
- is_user = CPU_MEM_INDEX;
- if (__builtin_expect(env->tlb_read[is_user][index].address !=
- (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))), 0)) {
- res = glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, is_user);
+ target_ulong addr;
+ unsigned long physaddr;
+ int mmu_idx;
+
+ addr = ptr;
+ page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
+ mmu_idx = CPU_MMU_INDEX;
+ if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
+ (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
+ res = glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx);
} else {
- physaddr = addr + env->tlb_read[is_user][index].addend;
+ physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)physaddr);
}
return res;
}
#if DATA_SIZE <= 2
-static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(void *ptr)
+static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(target_ulong ptr)
{
- int res, index;
- unsigned long addr, physaddr;
- int is_user;
-
- addr = (unsigned long)ptr;
- index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
- is_user = CPU_MEM_INDEX;
- if (__builtin_expect(env->tlb_read[is_user][index].address !=
- (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))), 0)) {
- res = (DATA_STYPE)glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, is_user);
+ int res, page_index;
+ target_ulong addr;
+ unsigned long physaddr;
+ int mmu_idx;
+
+ addr = ptr;
+ page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
+ mmu_idx = CPU_MMU_INDEX;
+ if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
+ (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
+ res = (DATA_STYPE)glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx);
} else {
- physaddr = addr + env->tlb_read[is_user][index].addend;
+ physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
res = glue(glue(lds, SUFFIX), _raw)((uint8_t *)physaddr);
}
return res;
}
#endif
+#if ACCESS_TYPE != (NB_MMU_MODES + 1)
+
/* generic store macro */
-static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(void *ptr, RES_TYPE v)
+static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(target_ulong ptr, RES_TYPE v)
{
- int index;
- unsigned long addr, physaddr;
- int is_user;
-
- addr = (unsigned long)ptr;
- index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
- is_user = CPU_MEM_INDEX;
- if (__builtin_expect(env->tlb_write[is_user][index].address !=
- (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))), 0)) {
- glue(glue(__st, SUFFIX), MMUSUFFIX)(addr, v, is_user);
+ int page_index;
+ target_ulong addr;
+ unsigned long physaddr;
+ int mmu_idx;
+
+ addr = ptr;
+ page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
+ mmu_idx = CPU_MMU_INDEX;
+ if (unlikely(env->tlb_table[mmu_idx][page_index].addr_write !=
+ (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
+ glue(glue(__st, SUFFIX), MMUSUFFIX)(addr, v, mmu_idx);
} else {
- physaddr = addr + env->tlb_write[is_user][index].addend;
+ physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
glue(glue(st, SUFFIX), _raw)((uint8_t *)physaddr, v);
}
}
-#endif
+#endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
+
+#if ACCESS_TYPE != (NB_MMU_MODES + 1)
+
+#if DATA_SIZE == 8
+static inline float64 glue(ldfq, MEMSUFFIX)(target_ulong ptr)
+{
+ union {
+ float64 d;
+ uint64_t i;
+ } u;
+ u.i = glue(ldq, MEMSUFFIX)(ptr);
+ return u.d;
+}
+
+static inline void glue(stfq, MEMSUFFIX)(target_ulong ptr, float64 v)
+{
+ union {
+ float64 d;
+ uint64_t i;
+ } u;
+ u.d = v;
+ glue(stq, MEMSUFFIX)(ptr, u.i);
+}
+#endif /* DATA_SIZE == 8 */
+
+#if DATA_SIZE == 4
+static inline float32 glue(ldfl, MEMSUFFIX)(target_ulong ptr)
+{
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ u.i = glue(ldl, MEMSUFFIX)(ptr);
+ return u.f;
+}
+
+static inline void glue(stfl, MEMSUFFIX)(target_ulong ptr, float32 v)
+{
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ u.f = v;
+ glue(stl, MEMSUFFIX)(ptr, u.i);
+}
+#endif /* DATA_SIZE == 4 */
+
+#endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
#undef RES_TYPE
#undef DATA_TYPE
#undef SUFFIX
#undef USUFFIX
#undef DATA_SIZE
-#undef CPU_MEM_INDEX
+#undef CPU_MMU_INDEX
#undef MMUSUFFIX
+#undef ADDR_READ
projects / qemu / blobdiff