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ati-vga: Add registers for getting apertures 

Some drivers (e.g. Linux radeon drm and MacOS) access these to find
apertures to access card. Try to implement these but not sure these
are correct yet.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: b2df13655feecd63c0049ec45fd87d1026f67091.1565558093.git.balaton@eik.bme.hu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
BALATON Zoltan 2019-08-11 23:14:53 +02:00 committed by Gerd Hoffmann
parent 17dc579903
commit 1d8d4d866c
3 changed files with 25 additions and 0 deletions
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15
hw/display/ati.c
View File

@ -307,6 +307,21 @@ static uint64_t ati_mm_read(void *opaque, hwaddr addr, unsigned int size)
case CNFG_MEMSIZE:
val = s->vga.vram_size;
break;
case CONFIG_APER_0_BASE:
case CONFIG_APER_1_BASE:
val = pci_default_read_config(&s->dev,
PCI_BASE_ADDRESS_0, size) & 0xfffffff0;
break;
case CONFIG_APER_SIZE:
val = s->vga.vram_size;
break;
case CONFIG_REG_1_BASE:
val = pci_default_read_config(&s->dev,
PCI_BASE_ADDRESS_2, size) & 0xfffffff0;
break;
case CONFIG_REG_APER_SIZE:
val = memory_region_size(&s->mm);
break;
case MC_STATUS:
val = 5;
break;

5
hw/display/ati_dbg.c
View File

@ -28,6 +28,11 @@ static struct ati_regdesc ati_reg_names[] = {
{"CNFG_CNTL", 0x00e0},
{"GEN_RESET_CNTL", 0x00f0},
{"CNFG_MEMSIZE", 0x00f8},
{"CONFIG_APER_0_BASE", 0x0100},
{"CONFIG_APER_1_BASE", 0x0104},
{"CONFIG_APER_SIZE", 0x0108},
{"CONFIG_REG_1_BASE", 0x010c},
{"CONFIG_REG_APER_SIZE", 0x0110},
{"MEM_CNTL", 0x0140},
{"MC_FB_LOCATION", 0x0148},
{"MC_AGP_LOCATION", 0x014C},

5
hw/display/ati_regs.h
View File

@ -46,6 +46,11 @@
#define CNFG_CNTL 0x00e0
#define GEN_RESET_CNTL 0x00f0
#define CNFG_MEMSIZE 0x00f8
#define CONFIG_APER_0_BASE 0x0100
#define CONFIG_APER_1_BASE 0x0104
#define CONFIG_APER_SIZE 0x0108
#define CONFIG_REG_1_BASE 0x010c
#define CONFIG_REG_APER_SIZE 0x0110
#define MEM_CNTL 0x0140
#define MC_FB_LOCATION 0x0148
#define MC_AGP_LOCATION 0x014C