diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 54 |
1 files changed, 41 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c index 423fd2eebe1e..00e96419fcda 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c @@ -84,6 +84,13 @@ static bool check_atom_bios(struct amdgpu_device *adev, size_t size) return false; } +void amdgpu_bios_release(struct amdgpu_device *adev) +{ + kfree(adev->bios); + adev->bios = NULL; + adev->bios_size = 0; +} + /* If you boot an IGP board with a discrete card as the primary, * the IGP rom is not accessible via the rom bar as the IGP rom is * part of the system bios. On boot, the system bios puts a @@ -121,7 +128,7 @@ static bool amdgpu_read_bios_from_vram(struct amdgpu_device *adev) iounmap(bios); if (!check_atom_bios(adev, size)) { - kfree(adev->bios); + amdgpu_bios_release(adev); return false; } @@ -149,7 +156,7 @@ bool amdgpu_read_bios(struct amdgpu_device *adev) pci_unmap_rom(adev->pdev, bios); if (!check_atom_bios(adev, size)) { - kfree(adev->bios); + amdgpu_bios_release(adev); return false; } @@ -189,7 +196,7 @@ static bool amdgpu_read_bios_from_rom(struct amdgpu_device *adev) amdgpu_asic_read_bios_from_rom(adev, adev->bios, len); if (!check_atom_bios(adev, len)) { - kfree(adev->bios); + amdgpu_bios_release(adev); return false; } @@ -225,7 +232,8 @@ static bool amdgpu_read_platform_bios(struct amdgpu_device *adev) return true; free_bios: - kfree(adev->bios); + amdgpu_bios_release(adev); + return false; } @@ -327,7 +335,7 @@ static bool amdgpu_atrm_get_bios(struct amdgpu_device *adev) } if (!check_atom_bios(adev, size)) { - kfree(adev->bios); + amdgpu_bios_release(adev); return false; } adev->bios_size = size; @@ -392,7 +400,7 @@ static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev) GFP_KERNEL); if (!check_atom_bios(adev, vhdr->ImageLength)) { - kfree(adev->bios); + amdgpu_bios_release(adev); return false; } adev->bios_size = vhdr->ImageLength; @@ -439,6 +447,13 @@ success: return true; } +static bool amdgpu_prefer_rom_resource(struct amdgpu_device *adev) +{ + struct resource *res = &adev->pdev->resource[PCI_ROM_RESOURCE]; + + return (res->flags & IORESOURCE_ROM_SHADOW); +} + static bool amdgpu_get_bios_dgpu(struct amdgpu_device *adev) { if (amdgpu_atrm_get_bios(adev)) { @@ -457,14 +472,27 @@ static bool amdgpu_get_bios_dgpu(struct amdgpu_device *adev) goto success; } - if (amdgpu_read_platform_bios(adev)) { - dev_info(adev->dev, "Fetched VBIOS from platform\n"); - goto success; - } + if (amdgpu_prefer_rom_resource(adev)) { + if (amdgpu_read_bios(adev)) { + dev_info(adev->dev, "Fetched VBIOS from ROM BAR\n"); + goto success; + } - if (amdgpu_read_bios(adev)) { - dev_info(adev->dev, "Fetched VBIOS from ROM BAR\n"); - goto success; + if (amdgpu_read_platform_bios(adev)) { + dev_info(adev->dev, "Fetched VBIOS from platform\n"); + goto success; + } + + } else { + if (amdgpu_read_platform_bios(adev)) { + dev_info(adev->dev, "Fetched VBIOS from platform\n"); + goto success; + } + + if (amdgpu_read_bios(adev)) { + dev_info(adev->dev, "Fetched VBIOS from ROM BAR\n"); + goto success; + } } if (amdgpu_read_bios_from_rom(adev)) { |