diff options
Diffstat (limited to 'hw/cirrus_vga.c')
| -rw-r--r-- | hw/cirrus_vga.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c index 01f3b6a631..e0cf458d76 100644 --- a/hw/cirrus_vga.c +++ b/hw/cirrus_vga.c @@ -31,6 +31,7 @@ #include "pci.h" #include "console.h" #include "vga_int.h" +#include "kvm.h" /* * TODO: @@ -1228,6 +1229,12 @@ static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index) } if (limit > 0) { + /* Thinking about changing bank base? First, drop the dirty bitmap information + * on the current location, otherwise we lose this pointer forever */ + if (s->lfb_vram_mapped) { + target_phys_addr_t base_addr = isa_mem_base + 0xa0000 + bank_index * 0x8000; + cpu_physical_sync_dirty_bitmap(base_addr, base_addr + 0x8000); + } s->cirrus_bank_base[bank_index] = offset; s->cirrus_bank_limit[bank_index] = limit; } else { @@ -1356,6 +1363,7 @@ cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value) s->hw_cursor_y = (reg_value << 3) | (reg_index >> 5); break; case 0x07: // Extended Sequencer Mode + cirrus_update_memory_access(s); case 0x08: // EEPROM Control case 0x09: // Scratch Register 0 case 0x0a: // Scratch Register 1 @@ -1528,6 +1536,7 @@ cirrus_hook_write_gr(CirrusVGAState * s, unsigned reg_index, int reg_value) s->gr[reg_index] = reg_value; cirrus_update_bank_ptr(s, 0); cirrus_update_bank_ptr(s, 1); + cirrus_update_memory_access(s); break; case 0x0B: s->gr[reg_index] = reg_value; @@ -2618,6 +2627,52 @@ static CPUWriteMemoryFunc *cirrus_linear_bitblt_write[3] = { cirrus_linear_bitblt_writel, }; +static void map_linear_vram(CirrusVGAState *s) +{ + + if (!s->map_addr && s->lfb_addr && s->lfb_end) { + s->map_addr = s->lfb_addr; + s->map_end = s->lfb_end; + cpu_register_physical_memory(s->map_addr, s->map_end - s->map_addr, s->vram_offset); + vga_dirty_log_start((VGAState *)s); + } + + if (!s->map_addr) + return; + + s->lfb_vram_mapped = 0; + + if (!(s->cirrus_srcptr != s->cirrus_srcptr_end) + && !((s->sr[0x07] & 0x01) == 0) + && !((s->gr[0x0B] & 0x14) == 0x14) + && !(s->gr[0x0B] & 0x02)) { + + cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000, + (s->vram_offset + s->cirrus_bank_base[0]) | IO_MEM_RAM); + cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000, + (s->vram_offset + s->cirrus_bank_base[1]) | IO_MEM_RAM); + + s->lfb_vram_mapped = 1; + vga_dirty_log_start((VGAState *)s); + } + else { + cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x8000, s->vga_io_memory); + cpu_register_physical_memory(isa_mem_base + 0xa8000, 0x8000, s->vga_io_memory); + } + +} + +static void unmap_linear_vram(CirrusVGAState *s) +{ + if (s->map_addr && s->lfb_addr && s->lfb_end) { + vga_dirty_log_stop((VGAState *)s); + s->map_addr = s->map_end = 0; + } + + cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000, + s->vga_io_memory); +} + /* Compute the memory access functions */ static void cirrus_update_memory_access(CirrusVGAState *s) { @@ -2636,11 +2691,13 @@ static void cirrus_update_memory_access(CirrusVGAState *s) mode = s->gr[0x05] & 0x7; if (mode < 4 || mode > 5 || ((s->gr[0x0B] & 0x4) == 0)) { + map_linear_vram(s); s->cirrus_linear_write[0] = cirrus_linear_mem_writeb; s->cirrus_linear_write[1] = cirrus_linear_mem_writew; s->cirrus_linear_write[2] = cirrus_linear_mem_writel; } else { generic_io: + unmap_linear_vram(s); s->cirrus_linear_write[0] = cirrus_linear_writeb; s->cirrus_linear_write[1] = cirrus_linear_writew; s->cirrus_linear_write[2] = cirrus_linear_writel; @@ -3102,6 +3159,7 @@ static int cirrus_vga_load(QEMUFile *f, void *opaque, int version_id) qemu_get_be32s(f, &s->hw_cursor_x); qemu_get_be32s(f, &s->hw_cursor_y); + cirrus_update_memory_access(s); /* force refresh */ s->graphic_mode = -1; cirrus_update_bank_ptr(s, 0); @@ -3261,6 +3319,13 @@ static void cirrus_pci_lfb_map(PCIDevice *d, int region_num, s->cirrus_linear_io_addr); cpu_register_physical_memory(addr + 0x1000000, 0x400000, s->cirrus_linear_bitblt_io_addr); + + s->map_addr = s->map_end = 0; + s->lfb_addr = addr & TARGET_PAGE_MASK; + s->lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; + /* account for overflow */ + if (s->lfb_end < addr + VGA_RAM_SIZE) + s->lfb_end = addr + VGA_RAM_SIZE; } static void cirrus_pci_mmio_map(PCIDevice *d, int region_num, |