From d1ccf3d96b7dbda982ffd4ee99a33bcaff74b94c Mon Sep 17 00:00:00 2001 From: Roman Li Date: Thu, 27 Jul 2017 19:53:55 -0400 Subject: [PATCH 0697/4131] drm/amd/display: Initial prototype of FBC implementation - Protected by ENABLE_FBC compile flag - DC part will follow Signed-off-by: Roman Li Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 29 +++++++++++++++++++++++ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 12 ++++++++++ 2 files changed, 41 insertions(+) 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 9825af7..ad8dc2c 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -297,6 +297,30 @@ static void hotplug_notify_work_func(struct work_struct *work) drm_kms_helper_hotplug_event(dev); } +#ifdef ENABLE_FBC +#include "dal_asic_id.h" +/* Allocate memory for FBC compressed data */ +/* TODO: Dynamic allocation */ +#define AMDGPU_FBC_SIZE (3840 * 2160 * 4) + +void amdgpu_dm_initialize_fbc(struct amdgpu_device *adev) +{ + int r; + struct dm_comressor_info *compressor = &adev->dm.compressor; + + if (!compressor->bo_ptr) { + r = amdgpu_bo_create_kernel(adev, AMDGPU_FBC_SIZE, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_VRAM, &compressor->bo_ptr, + &compressor->gpu_addr, &compressor->cpu_addr); + + if (r) + DRM_ERROR("DM: Failed to initialize fbc\n"); + } + +} +#endif + + /* Init display KMS * * Returns 0 on success @@ -347,6 +371,11 @@ int amdgpu_dm_init(struct amdgpu_device *adev) init_data.dce_environment = DCE_ENV_PRODUCTION_DRV; +#ifdef ENABLE_FBC + if (adev->family == FAMILY_CZ) + amdgpu_dm_initialize_fbc(adev); + init_data.fbc_gpu_addr = adev->dm.compressor.gpu_addr; +#endif /* Display Core create. */ adev->dm.dc = dc_create(&init_data); 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 16b2e08..ce0223a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -72,6 +72,15 @@ struct irq_list_head { struct work_struct work; }; +#ifdef ENABLE_FBC +struct dm_comressor_info { + void *cpu_addr; + struct amdgpu_bo *bo_ptr; + uint64_t gpu_addr; +}; +#endif + + struct amdgpu_display_manager { struct dal *dal; struct dc *dc; @@ -133,6 +142,9 @@ struct amdgpu_display_manager { * Caches device atomic state for suspend/resume */ struct drm_atomic_state *cached_state; +#ifdef ENABLE_FBC + struct dm_comressor_info compressor; +#endif }; /* basic init/fini API */ -- 2.7.4