mirror of
https://github.com/qemu/qemu.git
synced 2024-12-04 01:03:38 +08:00
82f11917c9
The cpu_ldfq/stfq/ldfl/stfl accessors for loading and storing float32 and float64 are completely unused, so delete them. (The union they use for converting from the float32/float64 type to uint32_t or uint64_t is the wrong way to do it anyway: they should be using make_float* and float*_val.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1421334118-3287-15-git-send-email-peter.maydell@linaro.org
142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/*
|
|
* Software MMU support
|
|
*
|
|
* Generate inline load/store functions for one MMU mode and data
|
|
* size.
|
|
*
|
|
* Generate a store function as well as signed and unsigned loads.
|
|
*
|
|
* Not used directly but included from cpu_ldst.h.
|
|
*
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#if DATA_SIZE == 8
|
|
#define SUFFIX q
|
|
#define USUFFIX q
|
|
#define DATA_TYPE uint64_t
|
|
#elif DATA_SIZE == 4
|
|
#define SUFFIX l
|
|
#define USUFFIX l
|
|
#define DATA_TYPE uint32_t
|
|
#elif DATA_SIZE == 2
|
|
#define SUFFIX w
|
|
#define USUFFIX uw
|
|
#define DATA_TYPE uint16_t
|
|
#define DATA_STYPE int16_t
|
|
#elif DATA_SIZE == 1
|
|
#define SUFFIX b
|
|
#define USUFFIX ub
|
|
#define DATA_TYPE uint8_t
|
|
#define DATA_STYPE int8_t
|
|
#else
|
|
#error unsupported data size
|
|
#endif
|
|
|
|
#if DATA_SIZE == 8
|
|
#define RES_TYPE uint64_t
|
|
#else
|
|
#define RES_TYPE uint32_t
|
|
#endif
|
|
|
|
#ifdef SOFTMMU_CODE_ACCESS
|
|
#define ADDR_READ addr_code
|
|
#define MMUSUFFIX _cmmu
|
|
#else
|
|
#define ADDR_READ addr_read
|
|
#define MMUSUFFIX _mmu
|
|
#endif
|
|
|
|
/* generic load/store macros */
|
|
|
|
static inline RES_TYPE
|
|
glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
|
|
{
|
|
int page_index;
|
|
RES_TYPE res;
|
|
target_ulong addr;
|
|
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(helper_ld, SUFFIX), MMUSUFFIX)(env, addr, mmu_idx);
|
|
} else {
|
|
uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|
res = glue(glue(ld, USUFFIX), _p)((uint8_t *)hostaddr);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#if DATA_SIZE <= 2
|
|
static inline int
|
|
glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
|
|
{
|
|
int res, page_index;
|
|
target_ulong addr;
|
|
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(helper_ld, SUFFIX),
|
|
MMUSUFFIX)(env, addr, mmu_idx);
|
|
} else {
|
|
uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|
res = glue(glue(lds, SUFFIX), _p)((uint8_t *)hostaddr);
|
|
}
|
|
return res;
|
|
}
|
|
#endif
|
|
|
|
#ifndef SOFTMMU_CODE_ACCESS
|
|
|
|
/* generic store macro */
|
|
|
|
static inline void
|
|
glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr,
|
|
RES_TYPE v)
|
|
{
|
|
int page_index;
|
|
target_ulong addr;
|
|
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(helper_st, SUFFIX), MMUSUFFIX)(env, addr, v, mmu_idx);
|
|
} else {
|
|
uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
|
|
glue(glue(st, SUFFIX), _p)((uint8_t *)hostaddr, v);
|
|
}
|
|
}
|
|
|
|
#endif /* !SOFTMMU_CODE_ACCESS */
|
|
|
|
#undef RES_TYPE
|
|
#undef DATA_TYPE
|
|
#undef DATA_STYPE
|
|
#undef SUFFIX
|
|
#undef USUFFIX
|
|
#undef DATA_SIZE
|
|
#undef MMUSUFFIX
|
|
#undef ADDR_READ
|