diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c index 44938ba7a2b7..c247af03dc8e 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c @@ -34,6 +34,16 @@ struct dpu_rm_requirements { struct msm_display_topology topology; }; +/** + * dpu_rm_init - Read hardware catalog and create reservation tracking objects + * for all HW blocks. + * @dev: Corresponding device for devres management + * @rm: DPU Resource Manager handle + * @cat: Pointer to hardware catalog + * @mdss_data: Pointer to MDSS / UBWC configuration + * @mmio: mapped register io address of MDP + * @return: 0 on Success otherwise -ERROR + */ int dpu_rm_init(struct drm_device *dev, struct dpu_rm *rm, const struct dpu_mdss_cfg *cat, @@ -641,6 +651,13 @@ static void _dpu_rm_clear_mapping(uint32_t *res_mapping, int cnt, } } +/** + * dpu_rm_release - Given the encoder for the display chain, release any + * HW blocks previously reserved for that use case. + * @global_state: resources shared across multiple kms objects + * @enc: DRM Encoder handle + * @return: 0 on Success otherwise -ERROR + */ void dpu_rm_release(struct dpu_global_state *global_state, struct drm_encoder *enc) { @@ -657,6 +674,20 @@ void dpu_rm_release(struct dpu_global_state *global_state, _dpu_rm_clear_mapping(&global_state->cdm_to_enc_id, 1, enc->base.id); } +/** + * dpu_rm_reserve - Given a CRTC->Encoder->Connector display chain, analyze + * the use connections and user requirements, specified through related + * topology control properties, and reserve hardware blocks to that + * display chain. + * HW blocks can then be accessed through dpu_rm_get_* functions. + * HW Reservations should be released via dpu_rm_release_hw. + * @rm: DPU Resource Manager handle + * @global_state: resources shared across multiple kms objects + * @enc: DRM Encoder handle + * @crtc_state: Proposed Atomic DRM CRTC State handle + * @topology: Pointer to topology info for the display + * @return: 0 on Success otherwise -ERROR + */ int dpu_rm_reserve( struct dpu_rm *rm, struct dpu_global_state *global_state, @@ -694,6 +725,16 @@ int dpu_rm_reserve( return ret; } +/** + * dpu_rm_get_assigned_resources - Get hw resources of the given type that are + * assigned to this encoder + * @rm: DPU Resource Manager handle + * @global_state: resources shared across multiple kms objects + * @enc_id: encoder id requesting for allocation + * @type: resource type to return data for + * @blks: pointer to the array to be filled by HW resources + * @blks_size: size of the @blks array + */ int dpu_rm_get_assigned_resources(struct dpu_rm *rm, struct dpu_global_state *global_state, uint32_t enc_id, enum dpu_hw_blk_type type, struct dpu_hw_blk **blks, int blks_size) @@ -772,6 +813,11 @@ static void dpu_rm_print_state_helper(struct drm_printer *p, } +/** + * dpu_rm_print_state - output the RM private state + * @p: DRM printer + * @global_state: global state + */ void dpu_rm_print_state(struct drm_printer *p, const struct dpu_global_state *global_state) { |