Patchwork [2/3] cputlb: prepare private memory API for public consumption

From c4162082e8c44eb93193c1d8e3987e0da6a1b810 Mon Sep 17 00:00:00 2001
Message-Id: <c4162082e8c44eb93193c1d8e3987e0da6a1b810.1334416532.git.blauwirbel@gmail.com>
In-Reply-To: <a9e4121be10f58de87fd49a3e89f2e0132f65523.1334416532.git.blauwirbel@gmail.com>
References: <a9e4121be10f58de87fd49a3e89f2e0132f65523.1334416532.git.blauwirbel@gmail.com>
From: Blue Swirl <blauwirbel@gmail.com>
Date: Sat, 14 Apr 2012 14:56:48 +0000
Subject: [PATCH 2/3] cputlb: prepare private memory API for public consumption

Fold is_ram_rom and is_ram_rom_romd() into callers.

Change is_romd() and section_addr() to take MemoryRegion
instead of MemoryRegionSection for consistency and
use memory_region_ prefix.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 cputlb.c |   12 ++++++----
 cputlb.h |   18 ++-------------
 exec.c   |   68 +++++++++++++++++++++++++++++++++----------------------------
 3 files changed, 47 insertions(+), 51 deletions(-)

diff --git a/cputlb.c b/cputlb.c
index c49a3e8..aaad8e4 100644
--- a/cputlb.c
+++ b/cputlb.c
@@ -256,13 +256,15 @@  void tlb_set_page(CPUArchState *env, target_ulong vaddr,
 #endif
 
     address = vaddr;
-    if (!is_ram_rom_romd(section)) {
+    if (!(memory_region_is_ram(section->mr) ||
+          memory_region_is_romd(section->mr))) {
         /* IO memory case (romd handled later) */
         address |= TLB_MMIO;
     }
-    if (is_ram_rom_romd(section)) {
+    if (memory_region_is_ram(section->mr) ||
+        memory_region_is_romd(section->mr)) {
         addend = (unsigned long)memory_region_get_ram_ptr(section->mr)
-                                 + section_addr(section, paddr);
+                                 + memory_region_section_addr(section, paddr);
     } else {
         addend = 0;
     }
@@ -289,13 +291,13 @@  void tlb_set_page(CPUArchState *env, target_ulong vaddr,
     }
     if (prot & PAGE_WRITE) {
         if ((memory_region_is_ram(section->mr) && section->readonly)
-            || is_romd(section)) {
+            || memory_region_is_romd(section->mr)) {
             /* Write access calls the I/O callback.  */
             te->addr_write = address | TLB_MMIO;
         } else if (memory_region_is_ram(section->mr)
                    && !cpu_physical_memory_is_dirty(
                            section->mr->ram_addr
-                           + section_addr(section, paddr))) {
+                           + memory_region_section_addr(section, paddr))) {
             te->addr_write = address | TLB_NOTDIRTY;
         } else {
             te->addr_write = address;
diff --git a/cputlb.h b/cputlb.h
index d16c22e..60479af 100644
--- a/cputlb.h
+++ b/cputlb.h
@@ -32,8 +32,8 @@  void tlb_set_dirty(CPUArchState *env, target_ulong vaddr);
 extern int tlb_flush_count;
 
 /* exec.c */
-target_phys_addr_t section_addr(MemoryRegionSection *section,
-                                target_phys_addr_t addr);
+target_phys_addr_t memory_region_section_addr(MemoryRegionSection *section,
+                                              target_phys_addr_t addr);
 void tb_flush_jmp_cache(CPUArchState *env, target_ulong addr);
 target_phys_addr_t memory_region_section_get_iotlb(CPUArchState *env,
                                                    MemoryRegionSection *section,
@@ -43,21 +43,9 @@  target_phys_addr_t memory_region_section_get_iotlb(CPUArchState *env,
                                                    target_ulong *address);
 bool memory_region_is_unassigned(MemoryRegion *mr);
 
-static inline bool is_ram_rom(MemoryRegionSection *s)
+static inline bool memory_region_is_romd(MemoryRegion *mr)
 {
-    return memory_region_is_ram(s->mr);
-}
-
-static inline bool is_romd(MemoryRegionSection *s)
-{
-    MemoryRegion *mr = s->mr;
-
     return mr->rom_device && mr->readable;
 }
-static inline bool is_ram_rom_romd(MemoryRegionSection *s)
-{
-    return is_ram_rom(s) || is_romd(s);
-}
-
 #endif
 #endif
diff --git a/exec.c b/exec.c
index 0dda7b5..b137c54 100644
--- a/exec.c
+++ b/exec.c
@@ -507,10 +507,10 @@  target_phys_addr_t memory_region_section_get_iotlb(CPUArchState *env,
     target_phys_addr_t iotlb;
     CPUWatchpoint *wp;
 
-    if (is_ram_rom(section)) {
+    if (memory_region_is_ram(section->mr)) {
         /* Normal RAM.  */
         iotlb = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK)
-            + section_addr(section, paddr);
+            + memory_region_section_addr(section, paddr);
         if (!section->readonly) {
             iotlb |= phys_section_notdirty;
         } else {
@@ -524,7 +524,7 @@  target_phys_addr_t memory_region_section_get_iotlb(CPUArchState *env,
            We can't use the high bits of pd for this because
            IO_MEM_ROMD uses these as a ram address.  */
         iotlb = section - phys_sections;
-        iotlb += section_addr(section, paddr);
+        iotlb += memory_region_section_addr(section, paddr);
     }
 
     /* Make accesses to pages with watchpoints go via the
@@ -550,8 +550,8 @@  bool memory_region_is_unassigned(MemoryRegion *mr)
         && mr != &io_mem_watch;
 }
 
-target_phys_addr_t section_addr(MemoryRegionSection *section,
-                                target_phys_addr_t addr)
+target_phys_addr_t memory_region_section_addr(MemoryRegionSection *section,
+                                              target_phys_addr_t addr)
 {
     addr -= section->offset_within_address_space;
     addr += section->offset_within_region;
@@ -1523,7 +1523,7 @@  static void breakpoint_invalidate(CPUArchState *env, target_ulong pc)
         return;
     }
     ram_addr = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK)
-        + section_addr(section, addr);
+        + memory_region_section_addr(section, addr);
     tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0);
 }
 #endif
@@ -3514,7 +3514,7 @@  void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
         if (is_write) {
             if (!memory_region_is_ram(section->mr)) {
                 target_phys_addr_t addr1;
-                addr1 = section_addr(section, addr);
+                addr1 = memory_region_section_addr(section, addr);
                 /* XXX: could force cpu_single_env to NULL to avoid
                    potential bugs */
                 if (l >= 4 && ((addr1 & 3) == 0)) {
@@ -3536,7 +3536,7 @@  void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
             } else if (!section->readonly) {
                 ram_addr_t addr1;
                 addr1 = memory_region_get_ram_addr(section->mr)
-                    + section_addr(section, addr);
+                    + memory_region_section_addr(section, addr);
                 /* RAM case */
                 ptr = qemu_get_ram_ptr(addr1);
                 memcpy(ptr, buf, l);
@@ -3550,10 +3550,11 @@  void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
                 qemu_put_ram_ptr(ptr);
             }
         } else {
-            if (!is_ram_rom_romd(section)) {
+            if (!(memory_region_is_ram(section->mr) ||
+                  memory_region_is_romd(section->mr))) {
                 target_phys_addr_t addr1;
                 /* I/O case */
-                addr1 = section_addr(section, addr);
+                addr1 = memory_region_section_addr(section, addr);
                 if (l >= 4 && ((addr1 & 3) == 0)) {
                     /* 32 bit read access */
                     val = io_mem_read(section->mr, addr1, 4);
@@ -3573,7 +3574,8 @@  void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
             } else {
                 /* RAM case */
                 ptr = qemu_get_ram_ptr(section->mr->ram_addr
-                                       + section_addr(section, addr));
+                                       + memory_region_section_addr(section,
+                                                                    addr));
                 memcpy(buf, ptr, l);
                 qemu_put_ram_ptr(ptr);
             }
@@ -3600,12 +3602,13 @@  void cpu_physical_memory_write_rom(target_phys_addr_t addr,
             l = len;
         section = phys_page_find(page >> TARGET_PAGE_BITS);
 
-        if (!is_ram_rom_romd(section)) {
+        if (!(memory_region_is_ram(section->mr) ||
+              memory_region_is_romd(section->mr))) {
             /* do nothing */
         } else {
             unsigned long addr1;
             addr1 = memory_region_get_ram_addr(section->mr)
-                + section_addr(section, addr);
+                + memory_region_section_addr(section, addr);
             /* ROM/RAM case */
             ptr = qemu_get_ram_ptr(addr1);
             memcpy(ptr, buf, l);
@@ -3706,7 +3709,7 @@  void *cpu_physical_memory_map(target_phys_addr_t addr,
         }
         if (!todo) {
             raddr = memory_region_get_ram_addr(section->mr)
-                + section_addr(section, addr);
+                + memory_region_section_addr(section, addr);
         }
 
         len -= l;
@@ -3768,9 +3771,10 @@  static inline uint32_t ldl_phys_internal(target_phys_addr_t addr,
 
     section = phys_page_find(addr >> TARGET_PAGE_BITS);
 
-    if (!is_ram_rom_romd(section)) {
+    if (!(memory_region_is_ram(section->mr) ||
+          memory_region_is_romd(section->mr))) {
         /* I/O case */
-        addr = section_addr(section, addr);
+        addr = memory_region_section_addr(section, addr);
         val = io_mem_read(section->mr, addr, 4);
 #if defined(TARGET_WORDS_BIGENDIAN)
         if (endian == DEVICE_LITTLE_ENDIAN) {
@@ -3785,7 +3789,7 @@  static inline uint32_t ldl_phys_internal(target_phys_addr_t addr,
         /* RAM case */
         ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr)
                                 & TARGET_PAGE_MASK)
-                               + section_addr(section, addr));
+                               + memory_region_section_addr(section, addr));
         switch (endian) {
         case DEVICE_LITTLE_ENDIAN:
             val = ldl_le_p(ptr);
@@ -3826,9 +3830,10 @@  static inline uint64_t ldq_phys_internal(target_phys_addr_t addr,
 
     section = phys_page_find(addr >> TARGET_PAGE_BITS);
 
-    if (!is_ram_rom_romd(section)) {
+    if (!(memory_region_is_ram(section->mr) ||
+          memory_region_is_romd(section->mr))) {
         /* I/O case */
-        addr = section_addr(section, addr);
+        addr = memory_region_section_addr(section, addr);
 
         /* XXX This is broken when device endian != cpu endian.
                Fix and add "endian" variable check */
@@ -3843,7 +3848,7 @@  static inline uint64_t ldq_phys_internal(target_phys_addr_t addr,
         /* RAM case */
         ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr)
                                 & TARGET_PAGE_MASK)
-                               + section_addr(section, addr));
+                               + memory_region_section_addr(section, addr));
         switch (endian) {
         case DEVICE_LITTLE_ENDIAN:
             val = ldq_le_p(ptr);
@@ -3892,9 +3897,10 @@  static inline uint32_t lduw_phys_internal(target_phys_addr_t addr,
 
     section = phys_page_find(addr >> TARGET_PAGE_BITS);
 
-    if (!is_ram_rom_romd(section)) {
+    if (!(memory_region_is_ram(section->mr) ||
+          memory_region_is_romd(section->mr))) {
         /* I/O case */
-        addr = section_addr(section, addr);
+        addr = memory_region_section_addr(section, addr);
         val = io_mem_read(section->mr, addr, 2);
 #if defined(TARGET_WORDS_BIGENDIAN)
         if (endian == DEVICE_LITTLE_ENDIAN) {
@@ -3909,7 +3915,7 @@  static inline uint32_t lduw_phys_internal(target_phys_addr_t addr,
         /* RAM case */
         ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr)
                                 & TARGET_PAGE_MASK)
-                               + section_addr(section, addr));
+                               + memory_region_section_addr(section, addr));
         switch (endian) {
         case DEVICE_LITTLE_ENDIAN:
             val = lduw_le_p(ptr);
@@ -3951,7 +3957,7 @@  void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val)
     section = phys_page_find(addr >> TARGET_PAGE_BITS);
 
     if (!memory_region_is_ram(section->mr) || section->readonly) {
-        addr = section_addr(section, addr);
+        addr = memory_region_section_addr(section, addr);
         if (memory_region_is_ram(section->mr)) {
             section = &phys_sections[phys_section_rom];
         }
@@ -3959,7 +3965,7 @@  void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val)
     } else {
         unsigned long addr1 = (memory_region_get_ram_addr(section->mr)
                                & TARGET_PAGE_MASK)
-            + section_addr(section, addr);
+            + memory_region_section_addr(section, addr);
         ptr = qemu_get_ram_ptr(addr1);
         stl_p(ptr, val);
 
@@ -3983,7 +3989,7 @@  void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val)
     section = phys_page_find(addr >> TARGET_PAGE_BITS);
 
     if (!memory_region_is_ram(section->mr) || section->readonly) {
-        addr = section_addr(section, addr);
+        addr = memory_region_section_addr(section, addr);
         if (memory_region_is_ram(section->mr)) {
             section = &phys_sections[phys_section_rom];
         }
@@ -3997,7 +4003,7 @@  void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val)
     } else {
         ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr)
                                 & TARGET_PAGE_MASK)
-                               + section_addr(section, addr));
+                               + memory_region_section_addr(section, addr));
         stq_p(ptr, val);
     }
 }
@@ -4012,7 +4018,7 @@  static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val,
     section = phys_page_find(addr >> TARGET_PAGE_BITS);
 
     if (!memory_region_is_ram(section->mr) || section->readonly) {
-        addr = section_addr(section, addr);
+        addr = memory_region_section_addr(section, addr);
         if (memory_region_is_ram(section->mr)) {
             section = &phys_sections[phys_section_rom];
         }
@@ -4029,7 +4035,7 @@  static inline void stl_phys_internal(target_phys_addr_t addr, uint32_t val,
     } else {
         unsigned long addr1;
         addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK)
-            + section_addr(section, addr);
+            + memory_region_section_addr(section, addr);
         /* RAM case */
         ptr = qemu_get_ram_ptr(addr1);
         switch (endian) {
@@ -4085,7 +4091,7 @@  static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val,
     section = phys_page_find(addr >> TARGET_PAGE_BITS);
 
     if (!memory_region_is_ram(section->mr) || section->readonly) {
-        addr = section_addr(section, addr);
+        addr = memory_region_section_addr(section, addr);
         if (memory_region_is_ram(section->mr)) {
             section = &phys_sections[phys_section_rom];
         }
@@ -4102,7 +4108,7 @@  static inline void stw_phys_internal(target_phys_addr_t addr, uint32_t val,
     } else {
         unsigned long addr1;
         addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK)
-            + section_addr(section, addr);
+            + memory_region_section_addr(section, addr);
         /* RAM case */
         ptr = qemu_get_ram_ptr(addr1);
         switch (endian) {
-- 
1.7.2.5