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low level support for memory mapped flash devices (initial patch by Jocelyn Mayer)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2020 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-06-25 21:54:59 +00:00
parent 4f4fbf77ad
commit 2a4188a38f
3 changed files with 16 additions and 7 deletions
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17
exec.c
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@ -1488,7 +1488,7 @@ int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
if (is_softmmu)
#endif
{
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) {
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
/* IO memory case */
address = vaddr | pd;
addend = paddr;
@ -1785,7 +1785,8 @@ void cpu_register_physical_memory(target_phys_addr_t start_addr,
for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) {
p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
p->phys_offset = phys_offset;
if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM)
if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
(phys_offset & IO_MEM_ROMD))
phys_offset += TARGET_PAGE_SIZE;
}
}
@ -2048,7 +2049,8 @@ void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
}
}
} else {
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) {
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
!(pd & IO_MEM_ROMD)) {
/* I/O case */
io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
if (l >= 4 && ((addr & 3) == 0)) {
@ -2103,7 +2105,8 @@ void cpu_physical_memory_write_rom(target_phys_addr_t addr,
}
if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM &&
(pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM) {
(pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM &&
!(pd & IO_MEM_ROMD)) {
/* do nothing */
} else {
unsigned long addr1;
@ -2135,7 +2138,8 @@ uint32_t ldl_phys(target_phys_addr_t addr)
pd = p->phys_offset;
}
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) {
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
!(pd & IO_MEM_ROMD)) {
/* I/O case */
io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
@ -2164,7 +2168,8 @@ uint64_t ldq_phys(target_phys_addr_t addr)
pd = p->phys_offset;
}
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM) {
if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
!(pd & IO_MEM_ROMD)) {
/* I/O case */
io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
#ifdef TARGET_WORDS_BIGENDIAN