diff options
Diffstat (limited to 'common/recipes-kernel/linux/files/0006-drm-amdgpu-add-read_bios_from_rom-callback-for-VI-pa.patch')
| -rw-r--r-- | common/recipes-kernel/linux/files/0006-drm-amdgpu-add-read_bios_from_rom-callback-for-VI-pa.patch | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0006-drm-amdgpu-add-read_bios_from_rom-callback-for-VI-pa.patch b/common/recipes-kernel/linux/files/0006-drm-amdgpu-add-read_bios_from_rom-callback-for-VI-pa.patch new file mode 100644 index 00000000..9d6a83de --- /dev/null +++ b/common/recipes-kernel/linux/files/0006-drm-amdgpu-add-read_bios_from_rom-callback-for-VI-pa.patch @@ -0,0 +1,73 @@ +From b526555fa7a53776ff1925bd0bf9cef664134750 Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +Date: Tue, 24 Nov 2015 10:37:54 -0500 +Subject: [PATCH 0006/1110] drm/amdgpu: add read_bios_from_rom callback for VI + parts +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Read the vbios image directly from the rom. + +Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> +Reviewed-by: Christian König <christian.koenig@amd.com> +Reviewed-by: Monk Liu <monk.liu@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/vi.c | 33 +++++++++++++++++++++++++++++++++ + 1 file changed, 33 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c +index 3e9cbe3..0cb6f31 100644 +--- a/drivers/gpu/drm/amd/amdgpu/vi.c ++++ b/drivers/gpu/drm/amd/amdgpu/vi.c +@@ -377,6 +377,38 @@ static bool vi_read_disabled_bios(struct amdgpu_device *adev) + WREG32_SMC(ixROM_CNTL, rom_cntl); + return r; + } ++ ++static bool vi_read_bios_from_rom(struct amdgpu_device *adev, ++ u8 *bios, u32 length_bytes) ++{ ++ u32 *dw_ptr; ++ unsigned long flags; ++ u32 i, length_dw; ++ ++ if (bios == NULL) ++ return false; ++ if (length_bytes == 0) ++ return false; ++ /* APU vbios image is part of sbios image */ ++ if (adev->flags & AMD_IS_APU) ++ return false; ++ ++ dw_ptr = (u32 *)bios; ++ length_dw = ALIGN(length_bytes, 4) / 4; ++ /* take the smc lock since we are using the smc index */ ++ spin_lock_irqsave(&adev->smc_idx_lock, flags); ++ /* set rom index to 0 */ ++ WREG32(mmSMC_IND_INDEX_0, ixROM_INDEX); ++ WREG32(mmSMC_IND_DATA_0, 0); ++ /* set index to data for continous read */ ++ WREG32(mmSMC_IND_INDEX_0, ixROM_DATA); ++ for (i = 0; i < length_dw; i++) ++ dw_ptr[i] = RREG32(mmSMC_IND_DATA_0); ++ spin_unlock_irqrestore(&adev->smc_idx_lock, flags); ++ ++ return true; ++} ++ + static struct amdgpu_allowed_register_entry tonga_allowed_read_registers[] = { + {mmGB_MACROTILE_MODE7, true}, + }; +@@ -1369,6 +1401,7 @@ static uint32_t vi_get_rev_id(struct amdgpu_device *adev) + static const struct amdgpu_asic_funcs vi_asic_funcs = + { + .read_disabled_bios = &vi_read_disabled_bios, ++ .read_bios_from_rom = &vi_read_bios_from_rom, + .read_register = &vi_read_register, + .reset = &vi_asic_reset, + .set_vga_state = &vi_vga_set_state, +-- +2.7.4 + |