diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 267 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 50 |
2 files changed, 317 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 6ec8473f2cbd..26b61845b81a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -30,6 +30,11 @@ #include "dc.h" #include "dc/inc/core_types.h" #include "dal_asic_id.h" +#ifdef CONFIG_DRM_AMD_DC_DMUB +#include "dmub/inc/dmub_srv.h" +#include "dc/inc/hw/dmcu.h" +#include "dc/inc/hw/abm.h" +#endif #include "vid.h" #include "amdgpu.h" @@ -87,6 +92,10 @@ #include "modules/power/power_helpers.h" #include "modules/inc/mod_info_packet.h" +#ifdef CONFIG_DRM_AMD_DC_DMUB +#define FIRMWARE_RENOIR_DMUB "amdgpu/renoir_dmcub.bin" +MODULE_FIRMWARE(FIRMWARE_RENOIR_DMUB); +#endif #define FIRMWARE_RAVEN_DMCU "amdgpu/raven_dmcu.bin" MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU); @@ -667,12 +676,149 @@ void amdgpu_dm_audio_eld_notify(struct amdgpu_device *adev, int pin) } } +#ifdef CONFIG_DRM_AMD_DC_DMUB +static int dm_dmub_hw_init(struct amdgpu_device *adev) +{ + const unsigned int psp_header_bytes = 0x100; + const unsigned int psp_footer_bytes = 0x100; + const struct dmcub_firmware_header_v1_0 *hdr; + struct dmub_srv *dmub_srv = adev->dm.dmub_srv; + const struct firmware *dmub_fw = adev->dm.dmub_fw; + struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu; + struct abm *abm = adev->dm.dc->res_pool->abm; + struct dmub_srv_region_params region_params; + struct dmub_srv_region_info region_info; + struct dmub_srv_fb_params fb_params; + struct dmub_srv_fb_info fb_info; + struct dmub_srv_hw_params hw_params; + enum dmub_status status; + const unsigned char *fw_inst_const, *fw_bss_data; + uint32_t i; + int r; + bool has_hw_support; + + if (!dmub_srv) + /* DMUB isn't supported on the ASIC. */ + return 0; + + if (!dmub_fw) { + /* Firmware required for DMUB support. */ + DRM_ERROR("No firmware provided for DMUB.\n"); + return -EINVAL; + } + + status = dmub_srv_has_hw_support(dmub_srv, &has_hw_support); + if (status != DMUB_STATUS_OK) { + DRM_ERROR("Error checking HW support for DMUB: %d\n", status); + return -EINVAL; + } + + if (!has_hw_support) { + DRM_INFO("DMUB unsupported on ASIC\n"); + return 0; + } + + hdr = (const struct dmcub_firmware_header_v1_0 *)dmub_fw->data; + + /* Calculate the size of all the regions for the DMUB service. */ + memset(®ion_params, 0, sizeof(region_params)); + + region_params.inst_const_size = le32_to_cpu(hdr->inst_const_bytes) - + psp_header_bytes - psp_footer_bytes; + region_params.bss_data_size = le32_to_cpu(hdr->bss_data_bytes); + region_params.vbios_size = adev->dm.dc->ctx->dc_bios->bios_size; + + status = dmub_srv_calc_region_info(dmub_srv, ®ion_params, + ®ion_info); + + if (status != DMUB_STATUS_OK) { + DRM_ERROR("Error calculating DMUB region info: %d\n", status); + return -EINVAL; + } + + /* + * Allocate a framebuffer based on the total size of all the regions. + * TODO: Move this into GART. + */ + r = amdgpu_bo_create_kernel(adev, region_info.fb_size, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_VRAM, &adev->dm.dmub_bo, + &adev->dm.dmub_bo_gpu_addr, + &adev->dm.dmub_bo_cpu_addr); + if (r) + return r; + + /* Rebase the regions on the framebuffer address. */ + memset(&fb_params, 0, sizeof(fb_params)); + fb_params.cpu_addr = adev->dm.dmub_bo_cpu_addr; + fb_params.gpu_addr = adev->dm.dmub_bo_gpu_addr; + fb_params.region_info = ®ion_info; + + status = dmub_srv_calc_fb_info(dmub_srv, &fb_params, &fb_info); + if (status != DMUB_STATUS_OK) { + DRM_ERROR("Error calculating DMUB FB info: %d\n", status); + return -EINVAL; + } + + fw_inst_const = dmub_fw->data + + le32_to_cpu(hdr->header.ucode_array_offset_bytes) + + psp_header_bytes; + + fw_bss_data = dmub_fw->data + + le32_to_cpu(hdr->header.ucode_array_offset_bytes) + + le32_to_cpu(hdr->inst_const_bytes); + + /* Copy firmware and bios info into FB memory. */ + memcpy(fb_info.fb[DMUB_WINDOW_0_INST_CONST].cpu_addr, fw_inst_const, + region_params.inst_const_size); + memcpy(fb_info.fb[DMUB_WINDOW_2_BSS_DATA].cpu_addr, fw_bss_data, + region_params.bss_data_size); + memcpy(fb_info.fb[DMUB_WINDOW_3_VBIOS].cpu_addr, + adev->dm.dc->ctx->dc_bios->bios, region_params.vbios_size); + + /* Initialize hardware. */ + memset(&hw_params, 0, sizeof(hw_params)); + hw_params.fb_base = adev->gmc.fb_start; + hw_params.fb_offset = adev->gmc.aper_base; + + if (dmcu) + hw_params.psp_version = dmcu->psp_version; + + for (i = 0; i < fb_info.num_fb; ++i) + hw_params.fb[i] = &fb_info.fb[i]; + + status = dmub_srv_hw_init(dmub_srv, &hw_params); + if (status != DMUB_STATUS_OK) { + DRM_ERROR("Error initializing DMUB HW: %d\n", status); + return -EINVAL; + } + + /* Wait for firmware load to finish. */ + status = dmub_srv_wait_for_auto_load(dmub_srv, 100000); + if (status != DMUB_STATUS_OK) + DRM_WARN("Wait for DMUB auto-load failed: %d\n", status); + + /* Init DMCU and ABM if available. */ + if (dmcu && abm) { + dmcu->funcs->dmcu_init(dmcu); + abm->dmcu_is_running = dmcu->funcs->is_dmcu_initialized(dmcu); + } + + DRM_INFO("DMUB hardware initialized: version=0x%08X\n", + adev->dm.dmcub_fw_version); + + return 0; +} + +#endif static int amdgpu_dm_init(struct amdgpu_device *adev) { struct dc_init_data init_data; #ifdef CONFIG_DRM_AMD_DC_HDCP struct dc_callback_init init_params; #endif +#ifdef CONFIG_DRM_AMD_DC_DMUB + int r; +#endif adev->dm.ddev = adev->ddev; adev->dm.adev = adev; @@ -749,6 +895,14 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) dc_hardware_init(adev->dm.dc); +#ifdef CONFIG_DRM_AMD_DC_DMUB + r = dm_dmub_hw_init(adev); + if (r) { + DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r); + goto error; + } + +#endif adev->dm.freesync_module = mod_freesync_create(adev->dm.dc); if (!adev->dm.freesync_module) { DRM_ERROR( @@ -821,6 +975,12 @@ static void amdgpu_dm_fini(struct amdgpu_device *adev) if (adev->dm.dc) dc_deinit_callbacks(adev->dm.dc); #endif +#ifdef CONFIG_DRM_AMD_DC_DMUB + if (adev->dm.dmub_bo) + amdgpu_bo_free_kernel(&adev->dm.dmub_bo, + &adev->dm.dmub_bo_gpu_addr, + &adev->dm.dmub_bo_cpu_addr); +#endif /* DC Destroy TODO: Replace destroy DAL */ if (adev->dm.dc) @@ -932,9 +1092,104 @@ static int load_dmcu_fw(struct amdgpu_device *adev) return 0; } +#ifdef CONFIG_DRM_AMD_DC_DMUB +static uint32_t amdgpu_dm_dmub_reg_read(void *ctx, uint32_t address) +{ + struct amdgpu_device *adev = ctx; + + return dm_read_reg(adev->dm.dc->ctx, address); +} + +static void amdgpu_dm_dmub_reg_write(void *ctx, uint32_t address, + uint32_t value) +{ + struct amdgpu_device *adev = ctx; + + return dm_write_reg(adev->dm.dc->ctx, address, value); +} + +static int dm_dmub_sw_init(struct amdgpu_device *adev) +{ + struct dmub_srv_create_params create_params; + const struct dmcub_firmware_header_v1_0 *hdr; + const char *fw_name_dmub; + enum dmub_asic dmub_asic; + enum dmub_status status; + int r; + + switch (adev->asic_type) { + case CHIP_RENOIR: + dmub_asic = DMUB_ASIC_DCN21; + fw_name_dmub = FIRMWARE_RENOIR_DMUB; + break; + + default: + /* ASIC doesn't support DMUB. */ + return 0; + } + + adev->dm.dmub_srv = kzalloc(sizeof(*adev->dm.dmub_srv), GFP_KERNEL); + if (!adev->dm.dmub_srv) { + DRM_ERROR("Failed to allocate DMUB service!\n"); + return -ENOMEM; + } + + memset(&create_params, 0, sizeof(create_params)); + create_params.user_ctx = adev; + create_params.funcs.reg_read = amdgpu_dm_dmub_reg_read; + create_params.funcs.reg_write = amdgpu_dm_dmub_reg_write; + create_params.asic = dmub_asic; + + status = dmub_srv_create(adev->dm.dmub_srv, &create_params); + if (status != DMUB_STATUS_OK) { + DRM_ERROR("Error creating DMUB service: %d\n", status); + return -EINVAL; + } + + r = request_firmware_direct(&adev->dm.dmub_fw, fw_name_dmub, adev->dev); + if (r) { + DRM_ERROR("DMUB firmware loading failed: %d\n", r); + return 0; + } + + r = amdgpu_ucode_validate(adev->dm.dmub_fw); + if (r) { + DRM_ERROR("Couldn't validate DMUB firmware: %d\n", r); + return 0; + } + + if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { + DRM_WARN("Only PSP firmware loading is supported for DMUB\n"); + return 0; + } + + hdr = (const struct dmcub_firmware_header_v1_0 *)adev->dm.dmub_fw->data; + adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].ucode_id = + AMDGPU_UCODE_ID_DMCUB; + adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].fw = adev->dm.dmub_fw; + adev->firmware.fw_size += + ALIGN(le32_to_cpu(hdr->inst_const_bytes), PAGE_SIZE); + + adev->dm.dmcub_fw_version = le32_to_cpu(hdr->header.ucode_version); + + DRM_INFO("Loading DMUB firmware via PSP: version=0x%08X\n", + adev->dm.dmcub_fw_version); + + return 0; +} + +#endif static int dm_sw_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; +#ifdef CONFIG_DRM_AMD_DC_DMUB + int r; + + r = dm_dmub_sw_init(adev); + if (r) + return r; + +#endif return load_dmcu_fw(adev); } @@ -943,6 +1198,18 @@ static int dm_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; +#ifdef CONFIG_DRM_AMD_DC_DMUB + if (adev->dm.dmub_srv) { + dmub_srv_destroy(adev->dm.dmub_srv); + adev->dm.dmub_srv = NULL; + } + + if (adev->dm.dmub_fw) { + release_firmware(adev->dm.dmub_fw); + adev->dm.dmub_fw = NULL; + } + +#endif if(adev->dm.fw_dmcu) { release_firmware(adev->dm.fw_dmcu); adev->dm.fw_dmcu = NULL; diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h index d26bb591cefe..c636a958e377 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -57,6 +57,10 @@ struct amdgpu_device; struct drm_device; struct amdgpu_dm_irq_handler_data; struct dc; +#ifdef CONFIG_DRM_AMD_DC_DMUB +struct amdgpu_bo; +struct dmub_srv; +#endif struct common_irq_params { struct amdgpu_device *adev; @@ -121,6 +125,52 @@ struct amdgpu_display_manager { struct dc *dc; +#ifdef CONFIG_DRM_AMD_DC_DMUB + /** + * @dmub_srv: + * + * DMUB service, used for controlling the DMUB on hardware + * that supports it. The pointer to the dmub_srv will be + * NULL on hardware that does not support it. + */ + struct dmub_srv *dmub_srv; + + /** + * @dmub_fw: + * + * DMUB firmware, required on hardware that has DMUB support. + */ + const struct firmware *dmub_fw; + + /** + * @dmub_bo: + * + * Buffer object for the DMUB. + */ + struct amdgpu_bo *dmub_bo; + + /** + * @dmub_bo_gpu_addr: + * + * GPU virtual address for the DMUB buffer object. + */ + u64 dmub_bo_gpu_addr; + + /** + * @dmub_bo_cpu_addr: + * + * CPU address for the DMUB buffer object. + */ + void *dmub_bo_cpu_addr; + + /** + * @dmcub_fw_version: + * + * DMCUB firmware version. + */ + uint32_t dmcub_fw_version; + +#endif /** * @cgs_device: * |