diff options
| -rw-r--r-- | cpu-all.h | 8 | ||||
| -rw-r--r-- | exec-all.h | 1 | ||||
| -rw-r--r-- | exec-obsolete.h | 3 | ||||
| -rw-r--r-- | exec.c | 57 | ||||
| -rw-r--r-- | memory.c | 5 |
5 files changed, 1 insertions, 73 deletions
@@ -498,14 +498,6 @@ extern RAMList ram_list; extern const char *mem_path; extern int mem_prealloc; -/* physical memory access */ - -/* MMIO pages are identified by a combination of an IO device index and - 3 flags. The ROMD code stores the page ram offset in iotlb entry, - so only a limited number of ids are avaiable. */ - -#define IO_MEM_NB_ENTRIES (1 << TARGET_PAGE_BITS) - /* Flags stored in the low bits of the TLB virtual address. These are defined so that fast path ram access is all zeros. */ /* Zero if TLB entry is valid. */ diff --git a/exec-all.h b/exec-all.h index 4e8c7f537c..3ec60a2c49 100644 --- a/exec-all.h +++ b/exec-all.h @@ -304,7 +304,6 @@ uint64_t io_mem_read(struct MemoryRegion *mr, target_phys_addr_t addr, unsigned size); void io_mem_write(struct MemoryRegion *mr, target_phys_addr_t addr, uint64_t value, unsigned size); -extern struct MemoryRegion *io_mem_region[IO_MEM_NB_ENTRIES]; void tlb_fill(CPUState *env1, target_ulong addr, int is_write, int mmu_idx, void *retaddr); diff --git a/exec-obsolete.h b/exec-obsolete.h index 4dbe4768aa..792c831718 100644 --- a/exec-obsolete.h +++ b/exec-obsolete.h @@ -32,9 +32,6 @@ void qemu_ram_free(ram_addr_t addr); void qemu_ram_free_from_ptr(ram_addr_t addr); struct MemoryRegion; -int cpu_register_io_memory(MemoryRegion *mr); -void cpu_unregister_io_memory(int table_address); - struct MemoryRegionSection; void cpu_register_physical_memory_log(struct MemoryRegionSection *section, bool readonly); @@ -214,9 +214,6 @@ static PhysPageEntry phys_map = { .ptr = PHYS_MAP_NODE_NIL, .is_leaf = 0 }; static void io_mem_init(void); static void memory_map_init(void); -/* io memory support */ -MemoryRegion *io_mem_region[IO_MEM_NB_ENTRIES]; -static char io_mem_used[IO_MEM_NB_ENTRIES]; static MemoryRegion io_mem_watch; #endif @@ -3503,53 +3500,6 @@ static subpage_t *subpage_init(target_phys_addr_t base) return mmio; } -static int get_free_io_mem_idx(void) -{ - int i; - - for (i = 0; i<IO_MEM_NB_ENTRIES; i++) - if (!io_mem_used[i]) { - io_mem_used[i] = 1; - return i; - } - fprintf(stderr, "RAN out out io_mem_idx, max %d !\n", IO_MEM_NB_ENTRIES); - return -1; -} - -/* mem_read and mem_write are arrays of functions containing the - function to access byte (index 0), word (index 1) and dword (index - 2). Functions can be omitted with a NULL function pointer. - If io_index is non zero, the corresponding io zone is - modified. If it is zero, a new io zone is allocated. The return - value can be used with cpu_register_physical_memory(). (-1) is - returned if error. */ -static int cpu_register_io_memory_fixed(int io_index, MemoryRegion *mr) -{ - if (io_index <= 0) { - io_index = get_free_io_mem_idx(); - if (io_index == -1) - return io_index; - } else { - if (io_index >= IO_MEM_NB_ENTRIES) - return -1; - } - - io_mem_region[io_index] = mr; - - return io_index; -} - -int cpu_register_io_memory(MemoryRegion *mr) -{ - return cpu_register_io_memory_fixed(0, mr); -} - -void cpu_unregister_io_memory(int io_index) -{ - io_mem_region[io_index] = NULL; - io_mem_used[io_index] = 0; -} - static uint16_t dummy_section(MemoryRegion *mr) { MemoryRegionSection section = { @@ -3569,11 +3519,7 @@ MemoryRegion *iotlb_to_region(target_phys_addr_t index) static void io_mem_init(void) { - int i; - - /* Must be first: */ memory_region_init_io(&io_mem_ram, &error_mem_ops, NULL, "ram", UINT64_MAX); - assert(io_mem_ram.ram_addr == 0); memory_region_init_io(&io_mem_rom, &rom_mem_ops, NULL, "rom", UINT64_MAX); memory_region_init_io(&io_mem_unassigned, &unassigned_mem_ops, NULL, "unassigned", UINT64_MAX); @@ -3581,9 +3527,6 @@ static void io_mem_init(void) "notdirty", UINT64_MAX); memory_region_init_io(&io_mem_subpage_ram, &subpage_ram_ops, NULL, "subpage-ram", UINT64_MAX); - for (i=0; i<5; i++) - io_mem_used[i] = 1; - memory_region_init_io(&io_mem_watch, &watch_mem_ops, NULL, "watch", UINT64_MAX); } @@ -781,13 +781,11 @@ static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr) static void memory_region_destructor_iomem(MemoryRegion *mr) { - cpu_unregister_io_memory(mr->ram_addr); } static void memory_region_destructor_rom_device(MemoryRegion *mr) { qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK); - cpu_unregister_io_memory(mr->ram_addr & ~TARGET_PAGE_MASK); } static bool memory_region_wrong_endianness(MemoryRegion *mr) @@ -942,7 +940,7 @@ void memory_region_init_io(MemoryRegion *mr, mr->opaque = opaque; mr->terminates = true; mr->destructor = memory_region_destructor_iomem; - mr->ram_addr = cpu_register_io_memory(mr); + mr->ram_addr = ~(ram_addr_t)0; } void memory_region_init_ram(MemoryRegion *mr, @@ -992,7 +990,6 @@ void memory_region_init_rom_device(MemoryRegion *mr, mr->rom_device = true; mr->destructor = memory_region_destructor_rom_device; mr->ram_addr = qemu_ram_alloc(size, mr); - mr->ram_addr |= cpu_register_io_memory(mr); } static uint64_t invalid_read(void *opaque, target_phys_addr_t addr, |