On 16/11/2021 09:22, Vinod Koul wrote:
This add the bits in RM to enable the DSC blocks
Signed-off-by: Vinod Koul <vk...@kernel.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 1 +
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 66 +++++++++++++++++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h | 1 +
3 files changed, 68 insertions(+)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index 775bcbda860f..fd6672efb096 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -146,6 +146,7 @@ struct dpu_global_state {
uint32_t ctl_to_enc_id[CTL_MAX - CTL_0];
uint32_t intf_to_enc_id[INTF_MAX - INTF_0];
uint32_t dspp_to_enc_id[DSPP_MAX - DSPP_0];
+ uint32_t dsc_to_enc_id[DSC_MAX - DSC_0];
};
struct dpu_global_state
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index f9c83d6e427a..c9d0fc765aaf 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -11,6 +11,7 @@
#include "dpu_hw_intf.h"
#include "dpu_hw_dspp.h"
#include "dpu_hw_merge3d.h"
+#include "dpu_hw_dsc.h"
#include "dpu_encoder.h"
#include "dpu_trace.h"
@@ -75,6 +76,14 @@ int dpu_rm_destroy(struct dpu_rm *rm)
dpu_hw_intf_destroy(hw);
}
}
+ for (i = 0; i < ARRAY_SIZE(rm->dsc_blks); i++) {
+ struct dpu_hw_dsc *hw;
+
+ if (rm->dsc_blks[i]) {
+ hw = to_dpu_hw_dsc(rm->dsc_blks[i]);
+ dpu_hw_dsc_destroy(hw);
+ }
+ }
return 0;
}
@@ -221,6 +230,19 @@ int dpu_rm_init(struct dpu_rm *rm,
rm->dspp_blks[dspp->id - DSPP_0] = &hw->base;
}
+ for (i = 0; i < cat->dsc_count; i++) {
+ struct dpu_hw_dsc *hw;
+ const struct dpu_dsc_cfg *dsc = &cat->dsc[i];
+
+ hw = dpu_hw_dsc_init(dsc->id, mmio, cat);
+ if (IS_ERR_OR_NULL(hw)) {
+ rc = PTR_ERR(hw);
+ DPU_ERROR("failed dsc object creation: err %d\n", rc);
+ goto fail;
+ }
+ rm->dsc_blks[dsc->id - DSC_0] = &hw->base;
+ }
+
return 0;
fail:
@@ -476,6 +498,7 @@ static int _dpu_rm_reserve_intf(
}
global_state->intf_to_enc_id[idx] = enc_id;
+
return 0;
}
@@ -500,6 +523,38 @@ static int _dpu_rm_reserve_intf_related_hw(
return ret;
}
+static int _dpu_rm_reserve_dsc(struct dpu_rm *rm,
+ struct dpu_global_state *global_state,
+ struct drm_encoder *enc,
+ const struct msm_display_topology *top)
+{
+ struct msm_drm_private *priv;
+ int num_dsc = top->num_dsc;
+ int i;
+
+ priv = enc->dev->dev_private;
+
+ if (!priv)
+ return -EIO;
+
+ /* check if DSC is supported */
+ if (!priv->dsc)
+ return 0;
I don't think this check is necessary. If topology requests the DSC,
just give away required amount of hw blocks.
+
+ /* check if DSC required are allocated or not */
+ for (i = 0; i < num_dsc; i++) {
+ if (global_state->dsc_to_enc_id[i]) {
+ DPU_ERROR("DSC %d is already allocated\n", i);
+ return -EIO;
+ }
+ }
+
+ for (i = 0; i < num_dsc; i++)
+ global_state->dsc_to_enc_id[i] = enc->base.id;
+
+ return 0;
+}
+
static int _dpu_rm_make_reservation(
struct dpu_rm *rm,
struct dpu_global_state *global_state,
@@ -526,6 +581,10 @@ static int _dpu_rm_make_reservation(
if (ret)
return ret;
+ ret = _dpu_rm_reserve_dsc(rm, global_state, enc, &reqs->topology);
+ if (ret)
+ return ret;
+
return ret;
}
@@ -567,6 +626,8 @@ void dpu_rm_release(struct dpu_global_state *global_state,
ARRAY_SIZE(global_state->ctl_to_enc_id), enc->base.id);
_dpu_rm_clear_mapping(global_state->intf_to_enc_id,
ARRAY_SIZE(global_state->intf_to_enc_id), enc->base.id);
+ _dpu_rm_clear_mapping(global_state->dsc_to_enc_id,
+ ARRAY_SIZE(global_state->dsc_to_enc_id), enc->base.id);
}
int dpu_rm_reserve(
@@ -640,6 +701,11 @@ int dpu_rm_get_assigned_resources(struct dpu_rm *rm,
hw_to_enc_id = global_state->dspp_to_enc_id;
max_blks = ARRAY_SIZE(rm->dspp_blks);
break;
+ case DPU_HW_BLK_DSC:
+ hw_blks = rm->dsc_blks;
+ hw_to_enc_id = global_state->dsc_to_enc_id;
+ max_blks = ARRAY_SIZE(rm->dsc_blks);
+ break;
default:
DPU_ERROR("blk type %d not managed by rm\n", type);
return 0;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
index 1f12c8d5b8aa..278d2a510b80 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
@@ -30,6 +30,7 @@ struct dpu_rm {
struct dpu_hw_blk *intf_blks[INTF_MAX - INTF_0];
struct dpu_hw_blk *dspp_blks[DSPP_MAX - DSPP_0];
struct dpu_hw_blk *merge_3d_blks[MERGE_3D_MAX - MERGE_3D_0];
+ struct dpu_hw_blk *dsc_blks[DSC_MAX - DSC_0];
uint32_t lm_max_width;
};
--
With best wishes
Dmitry
