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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/include/exec/cpu_ldst_template.h
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/include/exec/cpu_ldst_template.h')
-rw-r--r--qemu/include/exec/cpu_ldst_template.h141
1 files changed, 141 insertions, 0 deletions
diff --git a/qemu/include/exec/cpu_ldst_template.h b/qemu/include/exec/cpu_ldst_template.h
new file mode 100644
index 000000000..95ab7504e
--- /dev/null
+++ b/qemu/include/exec/cpu_ldst_template.h
@@ -0,0 +1,141 @@
+/*
+ * 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