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path: root/hw/cirrus_vga.c
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Diffstat (limited to 'hw/cirrus_vga.c')
-rw-r--r--hw/cirrus_vga.c342
1 files changed, 202 insertions, 140 deletions
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index f39d1f82ff..ad23c4ad84 100644
--- a/hw/cirrus_vga.c
+++ b/hw/cirrus_vga.c
@@ -32,6 +32,7 @@
#include "console.h"
#include "vga_int.h"
#include "loader.h"
+#include "exec-memory.h"
/*
* TODO:
@@ -200,9 +201,14 @@ typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
typedef struct CirrusVGAState {
VGACommonState vga;
- int cirrus_linear_io_addr;
- int cirrus_linear_bitblt_io_addr;
- int cirrus_mmio_io_addr;
+ MemoryRegion cirrus_linear_io;
+ MemoryRegion cirrus_linear_bitblt_io;
+ MemoryRegion cirrus_mmio_io;
+ MemoryRegion pci_bar;
+ bool linear_vram; /* vga.vram mapped over cirrus_linear_io */
+ MemoryRegion low_mem_container; /* container for 0xa0000-0xc0000 */
+ MemoryRegion low_mem; /* always mapped, overridden by: */
+ MemoryRegion *cirrus_bank[2]; /* aliases at 0xa0000-0xb0000 */
uint32_t cirrus_addr_mask;
uint32_t linear_mmio_mask;
uint8_t cirrus_shadow_gr0;
@@ -612,7 +618,7 @@ static void cirrus_invalidate_region(CirrusVGAState * s, int off_begin,
off_cur_end = (off_cur + bytesperline) & s->cirrus_addr_mask;
off_cur &= TARGET_PAGE_MASK;
while (off_cur < off_cur_end) {
- cpu_physical_memory_set_dirty(s->vga.vram_offset + off_cur);
+ memory_region_set_dirty(&s->vga.vram, off_cur);
off_cur += TARGET_PAGE_SIZE;
}
off_begin += off_pitch;
@@ -1177,12 +1183,6 @@ 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->vga.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 {
@@ -1921,8 +1921,8 @@ static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s,
val <<= 1;
dst++;
}
- cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
- cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 7);
+ memory_region_set_dirty(&s->vga.vram, offset);
+ memory_region_set_dirty(&s->vga.vram, offset + 7);
}
static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
@@ -1946,8 +1946,8 @@ static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s,
val <<= 1;
dst += 2;
}
- cpu_physical_memory_set_dirty(s->vga.vram_offset + offset);
- cpu_physical_memory_set_dirty(s->vga.vram_offset + offset + 15);
+ memory_region_set_dirty(&s->vga.vram, offset);
+ memory_region_set_dirty(&s->vga.vram, offset + 15);
}
/***************************************
@@ -2057,8 +2057,7 @@ static void cirrus_vga_mem_writeb(void *opaque, target_phys_addr_t addr,
mode = s->vga.gr[0x05] & 0x7;
if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
*(s->vga.vram_ptr + bank_offset) = mem_value;
- cpu_physical_memory_set_dirty(s->vga.vram_offset +
- bank_offset);
+ memory_region_set_dirty(&s->vga.vram, bank_offset);
} else {
if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
cirrus_mem_writeb_mode4and5_8bpp(s, mode,
@@ -2099,16 +2098,37 @@ static void cirrus_vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_
cirrus_vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);
}
-static CPUReadMemoryFunc * const cirrus_vga_mem_read[3] = {
- cirrus_vga_mem_readb,
- cirrus_vga_mem_readw,
- cirrus_vga_mem_readl,
+static uint64_t cirrus_vga_mem_read(void *opaque,
+ target_phys_addr_t addr,
+ uint32_t size)
+{
+ CirrusVGAState *s = opaque;
+
+ switch (size) {
+ case 1: return cirrus_vga_mem_readb(s, addr);
+ case 2: return cirrus_vga_mem_readw(s, addr);
+ case 4: return cirrus_vga_mem_readl(s, addr);
+ default: abort();
+ }
+}
+
+static void cirrus_vga_mem_write(void *opaque, target_phys_addr_t addr,
+ uint64_t data, unsigned size)
+{
+ CirrusVGAState *s = opaque;
+
+ switch (size) {
+ case 1: return cirrus_vga_mem_writeb(s, addr, data);
+ case 2: return cirrus_vga_mem_writew(s, addr, data);
+ case 4: return cirrus_vga_mem_writel(s, addr, data);
+ default: abort();
+ }
};
-static CPUWriteMemoryFunc * const cirrus_vga_mem_write[3] = {
- cirrus_vga_mem_writeb,
- cirrus_vga_mem_writew,
- cirrus_vga_mem_writel,
+static const MemoryRegionOps cirrus_vga_mem_ops = {
+ .read = cirrus_vga_mem_read,
+ .write = cirrus_vga_mem_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
};
/***************************************
@@ -2365,7 +2385,7 @@ static void cirrus_linear_writeb(void *opaque, target_phys_addr_t addr,
mode = s->vga.gr[0x05] & 0x7;
if (mode < 4 || mode > 5 || ((s->vga.gr[0x0B] & 0x4) == 0)) {
*(s->vga.vram_ptr + addr) = (uint8_t) val;
- cpu_physical_memory_set_dirty(s->vga.vram_offset + addr);
+ memory_region_set_dirty(&s->vga.vram, addr);
} else {
if ((s->vga.gr[0x0B] & 0x14) != 0x14) {
cirrus_mem_writeb_mode4and5_8bpp(s, mode, addr, val);
@@ -2393,17 +2413,31 @@ static void cirrus_linear_writel(void *opaque, target_phys_addr_t addr,
}
-static CPUReadMemoryFunc * const cirrus_linear_read[3] = {
- cirrus_linear_readb,
- cirrus_linear_readw,
- cirrus_linear_readl,
-};
+static uint64_t cirrus_linear_read(void *opaque, target_phys_addr_t addr,
+ unsigned size)
+{
+ CirrusVGAState *s = opaque;
-static CPUWriteMemoryFunc * const cirrus_linear_write[3] = {
- cirrus_linear_writeb,
- cirrus_linear_writew,
- cirrus_linear_writel,
-};
+ switch (size) {
+ case 1: return cirrus_linear_readb(s, addr);
+ case 2: return cirrus_linear_readw(s, addr);
+ case 4: return cirrus_linear_readl(s, addr);
+ default: abort();
+ }
+}
+
+static void cirrus_linear_write(void *opaque, target_phys_addr_t addr,
+ uint64_t data, unsigned size)
+{
+ CirrusVGAState *s = opaque;
+
+ switch (size) {
+ case 1: return cirrus_linear_writeb(s, addr, data);
+ case 2: return cirrus_linear_writew(s, addr, data);
+ case 4: return cirrus_linear_writel(s, addr, data);
+ default: abort();
+ }
+}
/***************************************
*
@@ -2471,67 +2505,95 @@ static void cirrus_linear_bitblt_writel(void *opaque, target_phys_addr_t addr,
cirrus_linear_bitblt_writeb(opaque, addr + 3, (val >> 24) & 0xff);
}
+static uint64_t cirrus_linear_bitblt_read(void *opaque,
+ target_phys_addr_t addr,
+ unsigned size)
+{
+ CirrusVGAState *s = opaque;
+
+ switch (size) {
+ case 1: return cirrus_linear_bitblt_readb(s, addr);
+ case 2: return cirrus_linear_bitblt_readw(s, addr);
+ case 4: return cirrus_linear_bitblt_readl(s, addr);
+ default: abort();
+ }
+};
+
+static void cirrus_linear_bitblt_write(void *opaque,
+ target_phys_addr_t addr,
+ uint64_t data,
+ unsigned size)
+{
+ CirrusVGAState *s = opaque;
-static CPUReadMemoryFunc * const cirrus_linear_bitblt_read[3] = {
- cirrus_linear_bitblt_readb,
- cirrus_linear_bitblt_readw,
- cirrus_linear_bitblt_readl,
+ switch (size) {
+ case 1: return cirrus_linear_bitblt_writeb(s, addr, data);
+ case 2: return cirrus_linear_bitblt_writew(s, addr, data);
+ case 4: return cirrus_linear_bitblt_writel(s, addr, data);
+ default: abort();
+ }
};
-static CPUWriteMemoryFunc * const cirrus_linear_bitblt_write[3] = {
- cirrus_linear_bitblt_writeb,
- cirrus_linear_bitblt_writew,
- cirrus_linear_bitblt_writel,
+static const MemoryRegionOps cirrus_linear_bitblt_io_ops = {
+ .read = cirrus_linear_bitblt_read,
+ .write = cirrus_linear_bitblt_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
};
-static void map_linear_vram(CirrusVGAState *s)
+static void unmap_bank(CirrusVGAState *s, unsigned bank)
{
- if (!s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end) {
- s->vga.map_addr = s->vga.lfb_addr;
- s->vga.map_end = s->vga.lfb_end;
- cpu_register_physical_memory_log(s->vga.map_addr,
- s->vga.map_end - s->vga.map_addr,
- s->vga.vram_offset, 0, true);
+ if (s->cirrus_bank[bank]) {
+ memory_region_del_subregion(&s->low_mem_container,
+ s->cirrus_bank[bank]);
+ memory_region_destroy(s->cirrus_bank[bank]);
+ qemu_free(s->cirrus_bank[bank]);
+ s->cirrus_bank[bank] = NULL;
}
+}
- if (!s->vga.map_addr)
- return;
-
- s->vga.lfb_vram_mapped = 0;
+static void map_linear_vram_bank(CirrusVGAState *s, unsigned bank)
+{
+ MemoryRegion *mr;
+ static const char *names[] = { "vga.bank0", "vga.bank1" };
if (!(s->cirrus_srcptr != s->cirrus_srcptr_end)
&& !((s->vga.sr[0x07] & 0x01) == 0)
&& !((s->vga.gr[0x0B] & 0x14) == 0x14)
&& !(s->vga.gr[0x0B] & 0x02)) {
- cpu_register_physical_memory_log(isa_mem_base + 0xa0000, 0x8000,
- (s->vga.vram_offset +
- s->cirrus_bank_base[0]) |
- IO_MEM_RAM, 0, true);
- cpu_register_physical_memory_log(isa_mem_base + 0xa8000, 0x8000,
- (s->vga.vram_offset +
- s->cirrus_bank_base[1]) |
- IO_MEM_RAM, 0, true);
-
- s->vga.lfb_vram_mapped = 1;
- }
- else {
- cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
- s->vga.vga_io_memory);
+ mr = qemu_malloc(sizeof(*mr));
+ memory_region_init_alias(mr, names[bank], &s->vga.vram,
+ s->cirrus_bank_base[bank], 0x8000);
+ memory_region_add_subregion_overlap(
+ &s->low_mem_container,
+ 0x8000 * bank,
+ mr,
+ 1);
+ unmap_bank(s, bank);
+ s->cirrus_bank[bank] = mr;
+ } else {
+ unmap_bank(s, bank);
}
+}
- vga_dirty_log_start(&s->vga);
+static void map_linear_vram(CirrusVGAState *s)
+{
+ if (!s->linear_vram) {
+ s->linear_vram = true;
+ memory_region_add_subregion_overlap(&s->pci_bar, 0, &s->vga.vram, 1);
+ }
+ map_linear_vram_bank(s, 0);
+ map_linear_vram_bank(s, 1);
}
static void unmap_linear_vram(CirrusVGAState *s)
{
- if (s->vga.map_addr && s->vga.lfb_addr && s->vga.lfb_end) {
- s->vga.map_addr = s->vga.map_end = 0;
- cpu_register_physical_memory(s->vga.lfb_addr, s->vga.vram_size,
- s->cirrus_linear_io_addr);
+ if (s->linear_vram) {
+ s->linear_vram = false;
+ memory_region_del_subregion(&s->pci_bar, &s->vga.vram);
}
- cpu_register_physical_memory(isa_mem_base + 0xa0000, 0x20000,
- s->vga.vga_io_memory);
+ unmap_bank(s, 0);
+ unmap_bank(s, 1);
}
/* Compute the memory access functions */
@@ -2829,16 +2891,36 @@ static void cirrus_mmio_writel(void *opaque, target_phys_addr_t addr,
}
-static CPUReadMemoryFunc * const cirrus_mmio_read[3] = {
- cirrus_mmio_readb,
- cirrus_mmio_readw,
- cirrus_mmio_readl,
+static uint64_t cirrus_mmio_read(void *opaque, target_phys_addr_t addr,
+ unsigned size)
+{
+ CirrusVGAState *s = opaque;
+
+ switch (size) {
+ case 1: return cirrus_mmio_readb(s, addr);
+ case 2: return cirrus_mmio_readw(s, addr);
+ case 4: return cirrus_mmio_readl(s, addr);
+ default: abort();
+ }
+};
+
+static void cirrus_mmio_write(void *opaque, target_phys_addr_t addr,
+ uint64_t data, unsigned size)
+{
+ CirrusVGAState *s = opaque;
+
+ switch (size) {
+ case 1: return cirrus_mmio_writeb(s, addr, data);
+ case 2: return cirrus_mmio_writew(s, addr, data);
+ case 4: return cirrus_mmio_writel(s, addr, data);
+ default: abort();
+ }
};
-static CPUWriteMemoryFunc * const cirrus_mmio_write[3] = {
- cirrus_mmio_writeb,
- cirrus_mmio_writew,
- cirrus_mmio_writel,
+static const MemoryRegionOps cirrus_mmio_io_ops = {
+ .read = cirrus_mmio_read,
+ .write = cirrus_mmio_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
};
/* load/save state */
@@ -2947,6 +3029,12 @@ static void cirrus_reset(void *opaque)
s->cirrus_hidden_dac_data = 0;
}
+static const MemoryRegionOps cirrus_linear_io_ops = {
+ .read = cirrus_linear_read,
+ .write = cirrus_linear_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
{
int i;
@@ -2993,28 +3081,33 @@ static void cirrus_init_common(CirrusVGAState * s, int device_id, int is_pci)
register_ioport_read(0x3ba, 1, 1, cirrus_vga_ioport_read, s);
register_ioport_read(0x3da, 1, 1, cirrus_vga_ioport_read, s);
- s->vga.vga_io_memory = cpu_register_io_memory(cirrus_vga_mem_read,
- cirrus_vga_mem_write, s,
- DEVICE_LITTLE_ENDIAN);
- cpu_register_physical_memory(isa_mem_base + 0x000a0000, 0x20000,
- s->vga.vga_io_memory);
- qemu_register_coalesced_mmio(isa_mem_base + 0x000a0000, 0x20000);
+ memory_region_init(&s->low_mem_container,
+ "cirrus-lowmem-container",
+ 0x20000);
+
+ memory_region_init_io(&s->low_mem, &cirrus_vga_mem_ops, s,
+ "cirrus-low-memory", 0x20000);
+ memory_region_add_subregion(&s->low_mem_container, 0, &s->low_mem);
+ memory_region_add_subregion_overlap(get_system_memory(),
+ isa_mem_base + 0x000a0000,
+ &s->low_mem_container,
+ 1);
+ memory_region_set_coalescing(&s->low_mem);
/* I/O handler for LFB */
- s->cirrus_linear_io_addr =
- cpu_register_io_memory(cirrus_linear_read, cirrus_linear_write, s,
- DEVICE_LITTLE_ENDIAN);
+ memory_region_init_io(&s->cirrus_linear_io, &cirrus_linear_io_ops, s,
+ "cirrus-linear-io", VGA_RAM_SIZE);
/* I/O handler for LFB */
- s->cirrus_linear_bitblt_io_addr =
- cpu_register_io_memory(cirrus_linear_bitblt_read,
- cirrus_linear_bitblt_write, s,
- DEVICE_LITTLE_ENDIAN);
+ memory_region_init_io(&s->cirrus_linear_bitblt_io,
+ &cirrus_linear_bitblt_io_ops,
+ s,
+ "cirrus-bitblt-mmio",
+ 0x400000);
/* I/O handler for memory-mapped I/O */
- s->cirrus_mmio_io_addr =
- cpu_register_io_memory(cirrus_mmio_read, cirrus_mmio_write, s,
- DEVICE_LITTLE_ENDIAN);
+ memory_region_init_io(&s->cirrus_mmio_io, &cirrus_mmio_io_ops, s,
+ "cirrus-mmio", CIRRUS_PNPMMIO_SIZE);
s->real_vram_size =
(s->device_id == CIRRUS_ID_CLGD5446) ? 4096 * 1024 : 2048 * 1024;
@@ -3060,42 +3153,6 @@ void isa_cirrus_vga_init(void)
*
***************************************/
-static void cirrus_pci_lfb_map(PCIDevice *d, int region_num,
- pcibus_t addr, pcibus_t size, int type)
-{
- CirrusVGAState *s = &DO_UPCAST(PCICirrusVGAState, dev, d)->cirrus_vga;
-
- /* XXX: add byte swapping apertures */
- cpu_register_physical_memory(addr, s->vga.vram_size,
- s->cirrus_linear_io_addr);
- cpu_register_physical_memory(addr + 0x1000000, 0x400000,
- s->cirrus_linear_bitblt_io_addr);
-
- s->vga.map_addr = s->vga.map_end = 0;
- s->vga.lfb_addr = addr & TARGET_PAGE_MASK;
- s->vga.lfb_end = ((addr + VGA_RAM_SIZE) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
- /* account for overflow */
- if (s->vga.lfb_end < addr + VGA_RAM_SIZE)
- s->vga.lfb_end = addr + VGA_RAM_SIZE;
-
- vga_dirty_log_start(&s->vga);
-}
-
-static void pci_cirrus_write_config(PCIDevice *d,
- uint32_t address, uint32_t val, int len)
-{
- PCICirrusVGAState *pvs = DO_UPCAST(PCICirrusVGAState, dev, d);
- CirrusVGAState *s = &pvs->cirrus_vga;
-
- pci_default_write_config(d, address, val, len);
- if (s->vga.map_addr && d->io_regions[0].addr == PCI_BAR_UNMAPPED) {
- s->vga.map_addr = 0;
- s->vga.lfb_addr = 0;
- s->vga.lfb_end = 0;
- }
- cirrus_update_memory_access(s);
-}
-
static int pci_cirrus_vga_initfn(PCIDevice *dev)
{
PCICirrusVGAState *d = DO_UPCAST(PCICirrusVGAState, dev, dev);
@@ -3112,15 +3169,21 @@ static int pci_cirrus_vga_initfn(PCIDevice *dev)
/* setup PCI */
+ memory_region_init(&s->pci_bar, "cirrus-pci-bar0", 0x2000000);
+
+ /* XXX: add byte swapping apertures */
+ memory_region_add_subregion(&s->pci_bar, 0, &s->cirrus_linear_io);
+ memory_region_add_subregion(&s->pci_bar, 0x1000000,
+ &s->cirrus_linear_bitblt_io);
+
/* setup memory space */
/* memory #0 LFB */
/* memory #1 memory-mapped I/O */
/* XXX: s->vga.vram_size must be a power of two */
- pci_register_bar(&d->dev, 0, 0x2000000,
- PCI_BASE_ADDRESS_MEM_PREFETCH, cirrus_pci_lfb_map);
+ pci_register_bar_region(&d->dev, 0, PCI_BASE_ADDRESS_MEM_PREFETCH,
+ &s->pci_bar);
if (device_id == CIRRUS_ID_CLGD5446) {
- pci_register_bar_simple(&d->dev, 1, CIRRUS_PNPMMIO_SIZE, 0,
- s->cirrus_mmio_io_addr);
+ pci_register_bar_region(&d->dev, 1, 0, &s->cirrus_mmio_io);
}
return 0;
}
@@ -3138,7 +3201,6 @@ static PCIDeviceInfo cirrus_vga_info = {
.no_hotplug = 1,
.init = pci_cirrus_vga_initfn,
.romfile = VGABIOS_CIRRUS_FILENAME,
- .config_write = pci_cirrus_write_config,
.vendor_id = PCI_VENDOR_ID_CIRRUS,
.device_id = CIRRUS_ID_CLGD5446,
.class_id = PCI_CLASS_DISPLAY_VGA,
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-21 03:45:51 +0000