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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>
hifive-unleashed-5.1
Roman Li 2017-07-27 19:53:55 -04:00 committed by Alex Deucher
parent cdc95cbb4c
commit a32e24b486
2 changed files with 41 additions and 0 deletions
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29
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@ -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);

12
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
View File

@ -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 */