From b2d472d71927342b9529a64fd8b92c8c8b0f67bd Mon Sep 17 00:00:00 2001 From: David Francis Date: Tue, 11 Sep 2018 13:41:01 -0400 Subject: [PATCH 5322/5725] drm/amd: Add ucode DMCU support DMCU (Display Microcontroller Unit) is a GPU chip involved in eDP features like Adaptive Backlight Modulation and Panel Self Refresh. DMCU has two pieces of firmware: the ERAM and the interrupt vectors, which must be loaded seperately. To this end, the DMCU firmware has a custom header and parsing logic similar to MEC, to extract the two ucodes from a single struct firmware. Signed-off-by: David Francis Reviewed-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 21 +++++++++++++++++++-- drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | 10 ++++++++++ 2 files changed, 29 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c index 8777dad..59fe359 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c @@ -322,6 +322,7 @@ static int amdgpu_ucode_init_single_fw(struct amdgpu_device *adev, { const struct common_firmware_header *header = NULL; const struct gfx_firmware_header_v1_0 *cp_hdr = NULL; + const struct dmcu_firmware_header_v1_0 *dmcu_hdr = NULL; if (NULL == ucode->fw) return 0; @@ -333,8 +334,8 @@ static int amdgpu_ucode_init_single_fw(struct amdgpu_device *adev, return 0; header = (const struct common_firmware_header *)ucode->fw->data; - cp_hdr = (const struct gfx_firmware_header_v1_0 *)ucode->fw->data; + dmcu_hdr = (const struct dmcu_firmware_header_v1_0 *)ucode->fw->data; if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP || (ucode->ucode_id != AMDGPU_UCODE_ID_CP_MEC1 && @@ -343,7 +344,9 @@ static int amdgpu_ucode_init_single_fw(struct amdgpu_device *adev, ucode->ucode_id != AMDGPU_UCODE_ID_CP_MEC2_JT && ucode->ucode_id != AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL && ucode->ucode_id != AMDGPU_UCODE_ID_RLC_RESTORE_LIST_GPM_MEM && - ucode->ucode_id != AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM)) { + ucode->ucode_id != AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM && + ucode->ucode_id != AMDGPU_UCODE_ID_DMCU_ERAM && + ucode->ucode_id != AMDGPU_UCODE_ID_DMCU_INTV)) { ucode->ucode_size = le32_to_cpu(header->ucode_size_bytes); memcpy(ucode->kaddr, (void *)((uint8_t *)ucode->fw->data + @@ -365,6 +368,20 @@ static int amdgpu_ucode_init_single_fw(struct amdgpu_device *adev, le32_to_cpu(header->ucode_array_offset_bytes) + le32_to_cpu(cp_hdr->jt_offset) * 4), ucode->ucode_size); + } else if (ucode->ucode_id == AMDGPU_UCODE_ID_DMCU_ERAM) { + ucode->ucode_size = le32_to_cpu(header->ucode_size_bytes) - + le32_to_cpu(dmcu_hdr->intv_size_bytes); + + memcpy(ucode->kaddr, (void *)((uint8_t *)ucode->fw->data + + le32_to_cpu(header->ucode_array_offset_bytes)), + ucode->ucode_size); + } else if (ucode->ucode_id == AMDGPU_UCODE_ID_DMCU_INTV) { + ucode->ucode_size = le32_to_cpu(dmcu_hdr->intv_size_bytes); + + memcpy(ucode->kaddr, (void *)((uint8_t *)ucode->fw->data + + le32_to_cpu(header->ucode_array_offset_bytes) + + le32_to_cpu(dmcu_hdr->intv_offset_bytes)), + ucode->ucode_size); } else if (ucode->ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL) { ucode->ucode_size = adev->gfx.rlc.save_restore_list_cntl_size_bytes; memcpy(ucode->kaddr, adev->gfx.rlc.save_restore_list_cntl, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h index b2f820c..15791af 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h @@ -157,6 +157,13 @@ struct gpu_info_firmware_header_v1_0 { uint16_t version_minor; /* version */ }; +/* version_major=1, version_minor=0 */ +struct dmcu_firmware_header_v1_0 { + struct common_firmware_header header; + uint32_t intv_offset_bytes; /* interrupt vectors offset from end of header, in bytes */ + uint32_t intv_size_bytes; /* size of interrupt vectors, in bytes */ +}; + /* header is fixed size */ union amdgpu_firmware_header { struct common_firmware_header common; @@ -170,6 +177,7 @@ union amdgpu_firmware_header { struct sdma_firmware_header_v1_0 sdma; struct sdma_firmware_header_v1_1 sdma_v1_1; struct gpu_info_firmware_header_v1_0 gpu_info; + struct dmcu_firmware_header_v1_0 dmcu; uint8_t raw[0x100]; }; @@ -196,6 +204,8 @@ enum AMDGPU_UCODE_ID { AMDGPU_UCODE_ID_UVD1, AMDGPU_UCODE_ID_VCE, AMDGPU_UCODE_ID_VCN, + AMDGPU_UCODE_ID_DMCU_ERAM, + AMDGPU_UCODE_ID_DMCU_INTV, AMDGPU_UCODE_ID_MAXIMUM, }; -- 2.7.4