aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/radeon/radeon_combios.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_combios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c159
1 files changed, 51 insertions, 108 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 78edadc9e86b..68ce36056019 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -147,7 +147,7 @@ static uint16_t combios_get_table_offset(struct drm_device *dev,
enum radeon_combios_table_offset table)
{
struct radeon_device *rdev = dev->dev_private;
- int rev;
+ int rev, size;
uint16_t offset = 0, check_offset;
if (!rdev->bios)
@@ -156,174 +156,106 @@ static uint16_t combios_get_table_offset(struct drm_device *dev,
switch (table) {
/* absolute offset tables */
case COMBIOS_ASIC_INIT_1_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0xc);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0xc;
break;
case COMBIOS_BIOS_SUPPORT_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x14);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x14;
break;
case COMBIOS_DAC_PROGRAMMING_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x2a);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x2a;
break;
case COMBIOS_MAX_COLOR_DEPTH_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x2c);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x2c;
break;
case COMBIOS_CRTC_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x2e);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x2e;
break;
case COMBIOS_PLL_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x30);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x30;
break;
case COMBIOS_TV_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x32);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x32;
break;
case COMBIOS_DFP_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x34);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x34;
break;
case COMBIOS_HW_CONFIG_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x36);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x36;
break;
case COMBIOS_MULTIMEDIA_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x38);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x38;
break;
case COMBIOS_TV_STD_PATCH_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x3e);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x3e;
break;
case COMBIOS_LCD_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x40);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x40;
break;
case COMBIOS_MOBILE_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x42);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x42;
break;
case COMBIOS_PLL_INIT_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x46);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x46;
break;
case COMBIOS_MEM_CONFIG_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x48);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x48;
break;
case COMBIOS_SAVE_MASK_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x4a);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x4a;
break;
case COMBIOS_HARDCODED_EDID_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x4c);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x4c;
break;
case COMBIOS_ASIC_INIT_2_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x4e);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x4e;
break;
case COMBIOS_CONNECTOR_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x50);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x50;
break;
case COMBIOS_DYN_CLK_1_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x52);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x52;
break;
case COMBIOS_RESERVED_MEM_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x54);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x54;
break;
case COMBIOS_EXT_TMDS_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x58);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x58;
break;
case COMBIOS_MEM_CLK_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x5a);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x5a;
break;
case COMBIOS_EXT_DAC_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x5c);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x5c;
break;
case COMBIOS_MISC_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x5e);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x5e;
break;
case COMBIOS_CRT_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x60);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x60;
break;
case COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x62);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x62;
break;
case COMBIOS_COMPONENT_VIDEO_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x64);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x64;
break;
case COMBIOS_FAN_SPEED_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x66);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x66;
break;
case COMBIOS_OVERDRIVE_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x68);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x68;
break;
case COMBIOS_OEM_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x6a);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x6a;
break;
case COMBIOS_DYN_CLK_2_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x6c);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x6c;
break;
case COMBIOS_POWER_CONNECTOR_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x6e);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x6e;
break;
case COMBIOS_I2C_INFO_TABLE:
- check_offset = RBIOS16(rdev->bios_header_start + 0x70);
- if (check_offset)
- offset = check_offset;
+ check_offset = 0x70;
break;
/* relative offset tables */
case COMBIOS_ASIC_INIT_3_TABLE: /* offset from misc info */
@@ -439,11 +371,16 @@ static uint16_t combios_get_table_offset(struct drm_device *dev,
}
break;
default:
+ check_offset = 0;
break;
}
- return offset;
+ size = RBIOS8(rdev->bios_header_start + 0x6);
+ /* check absolute offset tables */
+ if (table < COMBIOS_ASIC_INIT_3_TABLE && check_offset && check_offset < size)
+ offset = RBIOS16(rdev->bios_header_start + check_offset);
+ return offset;
}
bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
@@ -965,16 +902,22 @@ struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct
dac = RBIOS8(dac_info + 0x3) & 0xf;
p_dac->ps2_pdac_adj = (bg << 8) | (dac);
}
- /* if the values are all zeros, use the table */
- if (p_dac->ps2_pdac_adj)
+ /* if the values are zeros, use the table */
+ if ((dac == 0) || (bg == 0))
+ found = 0;
+ else
found = 1;
}
/* quirks */
+ /* Radeon 7000 (RV100) */
+ if (((dev->pdev->device == 0x5159) &&
+ (dev->pdev->subsystem_vendor == 0x174B) &&
+ (dev->pdev->subsystem_device == 0x7c28)) ||
/* Radeon 9100 (R200) */
- if ((dev->pdev->device == 0x514D) &&
+ ((dev->pdev->device == 0x514D) &&
(dev->pdev->subsystem_vendor == 0x174B) &&
- (dev->pdev->subsystem_device == 0x7149)) {
+ (dev->pdev->subsystem_device == 0x7149))) {
/* vbios value is bad, use the default */
found = 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.