[PATCH v2 08/16] drm/msm/dpu: add cdm blocks to RM

Abhinav Kumar
2023-12-08T05:07:41Z

Add the RM APIs necessary to initialize and allocate CDM
blocks to be used by the rest of the DPU pipeline.

changes in v2:
- treat cdm_init() failure as fatal
- fixed the commit text

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 13 +++++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h | 2 ++
2 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index 0bb28cf4a6cb..7ed476b96304 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -8,6 +8,7 @@
#include "dpu_kms.h"
#include "dpu_hw_lm.h"
#include "dpu_hw_ctl.h"
+#include "dpu_hw_cdm.h"
#include "dpu_hw_pingpong.h"
#include "dpu_hw_sspp.h"
#include "dpu_hw_intf.h"
@@ -176,6 +177,18 @@ int dpu_rm_init(struct drm_device *dev,
rm->hw_sspp[sspp->id - SSPP_NONE] = hw;
}

+ if (cat->cdm) {
+ struct dpu_hw_cdm *hw;
+
+ hw = dpu_hw_cdm_init(dev, cat->cdm, mmio, cat->mdss_ver);
+ if (IS_ERR(hw)) {
+ rc = PTR_ERR(hw);
+ DPU_ERROR("failed cdm object creation: err %d\n", rc);
+ goto fail;
+ }
+ rm->cdm_blk = &hw->base;
+ }
+
return 0;

fail:
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
index 36752d837be4..e3f83ebc656b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
@@ -22,6 +22,7 @@ struct dpu_global_state;
* @hw_wb: array of wb hardware resources
* @dspp_blks: array of dspp hardware resources
* @hw_sspp: array of sspp hardware resources
+ * @cdm_blk: cdm hardware resource
*/
struct dpu_rm {
struct dpu_hw_blk *pingpong_blks[PINGPONG_MAX - PINGPONG_0];
@@ -33,6 +34,7 @@ struct dpu_rm {
struct dpu_hw_blk *merge_3d_blks[MERGE_3D_MAX - MERGE_3D_0];
struct dpu_hw_blk *dsc_blks[DSC_MAX - DSC_0];
struct dpu_hw_sspp *hw_sspp[SSPP_MAX - SSPP_NONE];
+ struct dpu_hw_blk *cdm_blk;
};

/**
--
2.40.1