haraldwolff/qemu-patch-raspberry4
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cputlb: prepare private memory API for public consumption

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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.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2012-04-14 14:56:48 +00:00
parent 0cac1b66c8
commit cc5bea608d
3 changed files with 47 additions and 51 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
cputlb.c
View file

@ -260,13 +260,15 @@ 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 = (uintptr_t)memory_region_get_ram_ptr(section->mr)
+ section_addr(section, paddr);
+ memory_region_section_addr(section, paddr);
} else {
addend = 0;
}
@ -292,13 +294,13 @@ 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;

18
cputlb.h
View file

@ -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

68
exec.c
View file

@ -503,8 +503,8 @@ 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;
@ -1477,7 +1477,7 @@ void tb_invalidate_phys_addr(target_phys_addr_t addr)
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);
}
@ -1977,10 +1977,10 @@ 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 {
@ -1994,7 +1994,7 @@ 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
@ -3517,7 +3517,7 @@ 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)) {
@ -3539,7 +3539,7 @@ 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);
@ -3553,10 +3553,11 @@ 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);
@ -3576,7 +3577,8 @@ 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);
}
@ -3603,12 +3605,13 @@ 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);
@ -3709,7 +3712,7 @@ 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;
@ -3771,9 +3774,10 @@ 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) {
@ -3788,7 +3792,7 @@ 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);
@ -3829,9 +3833,10 @@ 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 */
@ -3846,7 +3851,7 @@ 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);
@ -3895,9 +3900,10 @@ 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) {
@ -3912,7 +3918,7 @@ 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);
@ -3954,7 +3960,7 @@ 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];
}
@ -3962,7 +3968,7 @@ 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);
@ -3986,7 +3992,7 @@ 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];
}
@ -4000,7 +4006,7 @@ 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);
}
}
@ -4015,7 +4021,7 @@ 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];
}
@ -4032,7 +4038,7 @@ 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) {
@ -4088,7 +4094,7 @@ 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];
}
@ -4105,7 +4111,7 @@ 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) {