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| author | Roman Li <Roman.Li@amd.com> | 2017-07-27 19:53:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 18:15:56 -0400 |
| commit | a32e24b486e80417e62d34f60d625783affff431 (patch) | |
| tree | db818a4fa4de160d226e347031294ed6287a93bb /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | cdc95cbb4cc29679e6116548d6e39d02a2b91649 (diff) | |
| download | lwn-a32e24b486e80417e62d34f60d625783affff431.tar.gz lwn-a32e24b486e80417e62d34f60d625783affff431.zip | |
drm/amd/display: Initial prototype of FBC implementation
- Protected by ENABLE_FBC compile flag
- DC part will follow
Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 29 |
1 files changed, 29 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 02ca9d6225eb..dfb04c5776ad 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); |