On 1/25/2024 1:49 PM, Dmitry Baryshkov wrote:
On 25/01/2024 21:38, Paloma Arellano wrote:
From: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
Introduce a peripheral flushing mechanism to decouple peripheral
metadata flushing from timing engine related flush.
Signed-off-by: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
Signed-off-by: Paloma Arellano <quic_parellan@xxxxxxxxxxx>
---
.../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 3 +++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 17 +++++++++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 10 ++++++++++
3 files changed, 30 insertions(+)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index d0f56c5c4cce9..e284bf448bdda 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -437,6 +437,9 @@ static void dpu_encoder_phys_vid_enable(struct
dpu_encoder_phys *phys_enc)
if (ctl->ops.update_pending_flush_merge_3d &&
phys_enc->hw_pp->merge_3d)
ctl->ops.update_pending_flush_merge_3d(ctl,
phys_enc->hw_pp->merge_3d->idx);
+ if (ctl->ops.update_pending_flush_periph &&
phys_enc->hw_intf->cap->type == INTF_DP)
+ ctl->ops.update_pending_flush_periph(ctl,
phys_enc->hw_intf->idx);
+
skip_flush:
DPU_DEBUG_VIDENC(phys_enc,
"update pending flush ctl %d intf %d\n",
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index e76565c3e6a43..bf45afeb616d3 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -39,6 +39,7 @@
#define CTL_WB_FLUSH 0x108
#define CTL_INTF_FLUSH 0x110
#define CTL_CDM_FLUSH 0x114
+#define CTL_PERIPH_FLUSH 0x128
#define CTL_INTF_MASTER 0x134
#define CTL_DSPP_n_FLUSH(n) ((0x13C) + ((n) * 4))
@@ -49,6 +50,7 @@
#define MERGE_3D_IDX 23
#define DSC_IDX 22
#define CDM_IDX 26
+#define PERIPH_IDX 30
#define INTF_IDX 31
#define WB_IDX 16
#define DSPP_IDX 29 /* From DPU hw rev 7.x.x */
@@ -151,6 +153,10 @@ static inline void
dpu_hw_ctl_trigger_flush_v1(struct dpu_hw_ctl *ctx)
ctx->pending_dspp_flush_mask[dspp - DSPP_0]);
}
+ if (ctx->pending_flush_mask & BIT(PERIPH_IDX))
+ DPU_REG_WRITE(&ctx->hw, CTL_PERIPH_FLUSH,
+ ctx->pending_periph_flush_mask);
+
if (ctx->pending_flush_mask & BIT(DSC_IDX))
DPU_REG_WRITE(&ctx->hw, CTL_DSC_FLUSH,
ctx->pending_dsc_flush_mask);
@@ -311,6 +317,13 @@ static void
dpu_hw_ctl_update_pending_flush_intf_v1(struct dpu_hw_ctl *ctx,
ctx->pending_flush_mask |= BIT(INTF_IDX);
}
+static void dpu_hw_ctl_update_pending_flush_periph(struct
dpu_hw_ctl *ctx,
+ enum dpu_intf intf)
I assume this is _v1.
Also the argument is misaligned.
Ack.
+{
+ ctx->pending_periph_flush_mask |= BIT(intf - INTF_0);
+ ctx->pending_flush_mask |= BIT(PERIPH_IDX);
+}
+
static void dpu_hw_ctl_update_pending_flush_merge_3d_v1(struct
dpu_hw_ctl *ctx,
enum dpu_merge_3d merge_3d)
{
@@ -680,6 +693,10 @@ static void _setup_ctl_ops(struct dpu_hw_ctl_ops
*ops,
ops->reset_intf_cfg = dpu_hw_ctl_reset_intf_cfg_v1;
ops->update_pending_flush_intf =
dpu_hw_ctl_update_pending_flush_intf_v1;
+
+ ops->update_pending_flush_periph =
+ dpu_hw_ctl_update_pending_flush_periph;
+
ops->update_pending_flush_merge_3d =
dpu_hw_ctl_update_pending_flush_merge_3d_v1;
ops->update_pending_flush_wb =
dpu_hw_ctl_update_pending_flush_wb_v1;
What about the pre-active platforms?
Pre-active does not need a peripheral flush.
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
index ff85b5ee0acf8..5d86c560b6d3f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
@@ -122,6 +122,15 @@ struct dpu_hw_ctl_ops {
void (*update_pending_flush_intf)(struct dpu_hw_ctl *ctx,
enum dpu_intf blk);
+ /**
+ * OR in the given flushbits to the cached
pending_(periph_)flush_mask
+ * No effect on hardware
+ * @ctx : ctl path ctx pointer
+ * @blk : interface block index
+ */
+ void (*update_pending_flush_periph)(struct dpu_hw_ctl *ctx,
+ enum dpu_intf blk);
+
/**
* OR in the given flushbits to the cached
pending_(merge_3d_)flush_mask
* No effect on hardware
@@ -264,6 +273,7 @@ struct dpu_hw_ctl {
u32 pending_flush_mask;
u32 pending_intf_flush_mask;
u32 pending_wb_flush_mask;
+ u32 pending_periph_flush_mask;
u32 pending_merge_3d_flush_mask;
u32 pending_dspp_flush_mask[DSPP_MAX - DSPP_0];
u32 pending_dsc_flush_mask;
