Re: [Freedreno] [v4] drm/msm/disp/dpu1: add support for dspp sub block flush in sc7280
Quoting Kalyan Thota (2022-09-08 00:26:28)
> 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 a35ecb6..bbda09a 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> @@ -307,6 +309,31 @@ static void dpu_hw_ctl_update_pending_flush_dspp(struct
> dpu_hw_ctl *ctx,
> }
> }
>
> +static void dpu_hw_ctl_update_pending_flush_dspp_subblocks(
> + struct dpu_hw_ctl *ctx, enum dpu_dspp dspp, u32 dspp_sub_blk)
> +{
> + uint32_t flushbits = 0, active;
Please use u32 in the kernel. It's shorter.
Re: [Freedreno] [v4] drm/msm/disp/dpu1: add support for dspp sub block flush in sc7280
On 08/09/2022 10:26, Kalyan Thota wrote:
Flush mechanism for DSPP blocks has changed in sc7280 family, it
allows individual sub blocks to be flushed in coordination with
master flush control.
Representation: master_flush && (PCC_flush | IGC_flush .. etc )
This change adds necessary support for the above design.
Changes in v1:
- Few nits (Doug, Dmitry)
- Restrict sub-block flush programming to dpu_hw_ctl file (Dmitry)
Changes in v2:
- Move the address offset to flush macro (Dmitry)
- Seperate ops for the sub block flush (Dmitry)
Changes in v3:
- Reuse the DPU_DSPP_xx enum instead of a new one (Dmitry)
Reviewed-by: Dmitry Baryshkov
Nit: your mails include the following headers. They break email
threading in the Thunderbird and some other clients, as they start
thinking that the email is a reply to some random previous email (with
similar headers) and groups such mails together. Is there any chance you
can fix your mail client/system?
> In-Reply-To:
> References:
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 5 +++-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 35 --
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 10 ++--
5 files changed, 50 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 601d687..4170fbe 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -766,7 +766,7 @@ static void _dpu_crtc_setup_cp_blocks(struct drm_crtc *crtc)
/* stage config flush mask */
ctl->ops.update_pending_flush_dspp(ctl,
- mixer[i].hw_dspp->idx);
+ mixer[i].hw_dspp->idx, DPU_DSPP_PCC);
}
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 27f029f..0eecb2f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -65,7 +65,10 @@
(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
#define CTL_SC7280_MASK \
- (BIT(DPU_CTL_ACTIVE_CFG) | BIT(DPU_CTL_FETCH_ACTIVE) |
BIT(DPU_CTL_VM_CFG))
+ (BIT(DPU_CTL_ACTIVE_CFG) | \
+BIT(DPU_CTL_FETCH_ACTIVE) | \
+BIT(DPU_CTL_VM_CFG) | \
+BIT(DPU_CTL_DSPP_SUB_BLOCK_FLUSH))
#define MERGE_3D_SM8150_MASK (0)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 38aa38a..8148e91 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -161,10 +161,12 @@ enum {
* DSPP sub-blocks
* @DPU_DSPP_PCC Panel color correction block
* @DPU_DSPP_GC Gamma correction block
+ * @DPU_DSPP_IGC Inverse Gamma correction block
*/
enum {
DPU_DSPP_PCC = 0x1,
DPU_DSPP_GC,
+ DPU_DSPP_IGC,
DPU_DSPP_MAX
};
@@ -191,6 +193,7 @@ enum {
* @DPU_CTL_SPLIT_DISPLAY:CTL supports video mode split display
* @DPU_CTL_FETCH_ACTIVE: Active CTL for fetch HW (SSPPs)
* @DPU_CTL_VM_CFG: CTL config to support multiple VMs
+ * @DPU_CTL_DSPP_BLOCK_FLUSH: CTL config to support dspp sub-block flush
* @DPU_CTL_MAX
*/
enum {
@@ -198,6 +201,7 @@ enum {
DPU_CTL_ACTIVE_CFG,
DPU_CTL_FETCH_ACTIVE,
DPU_CTL_VM_CFG,
+ DPU_CTL_DSPP_SUB_BLOCK_FLUSH,
DPU_CTL_MAX
};
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 a35ecb6..bbda09a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -33,6 +33,7 @@
#define CTL_INTF_FLUSH0x110
#define CTL_INTF_MASTER 0x134
#define CTL_FETCH_PIPE_ACTIVE 0x0FC
+#define CTL_DSPP_n_FLUSH(n) ((0x13C) + ((n - 1) * 4))
#define CTL_MIXER_BORDER_OUTBIT(24)
#define CTL_FLUSH_MASK_CTL BIT(17)
@@ -287,8 +288,9 @@ static void
dpu_hw_ctl_update_pending_flush_merge_3d_v1(struct dpu_hw_ctl *ctx,
}
static void dpu_hw_ctl_update_pending_flush_dspp(struct dpu_hw_ctl *ctx,
- enum dpu_dspp dspp)
+ enum dpu_dspp dspp, u32 dspp_sub_blk)
{
+
switch (dspp) {
case DSPP_0:
ctx->pending_flush_mask |= BIT(13);
@@ -307,6 +309,31 @@ static void dpu_hw_ctl_update_pending_flush_dspp(struct
dpu_hw_ctl *ctx,
}
}
+static void dpu_hw_ctl_update_pending_flush_dspp_subblocks(
+ struct dpu_hw_ctl *ctx, enum dpu_dspp dspp, u32 dspp_sub_blk)
+{
+ uint32_t flushbits = 0, active;
+
+ switch (dspp_sub_blk) {
+ case DPU_DSPP_IGC:
+ flushbits = BIT(2);
+ break;
+ case DPU_DSPP_PCC:
+
[Freedreno] [v4] drm/msm/disp/dpu1: add support for dspp sub block flush in sc7280
Flush mechanism for DSPP blocks has changed in sc7280 family, it
allows individual sub blocks to be flushed in coordination with
master flush control.
Representation: master_flush && (PCC_flush | IGC_flush .. etc )
This change adds necessary support for the above design.
Changes in v1:
- Few nits (Doug, Dmitry)
- Restrict sub-block flush programming to dpu_hw_ctl file (Dmitry)
Changes in v2:
- Move the address offset to flush macro (Dmitry)
- Seperate ops for the sub block flush (Dmitry)
Changes in v3:
- Reuse the DPU_DSPP_xx enum instead of a new one (Dmitry)
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 5 +++-
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 35 --
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 10 ++--
5 files changed, 50 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 601d687..4170fbe 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -766,7 +766,7 @@ static void _dpu_crtc_setup_cp_blocks(struct drm_crtc *crtc)
/* stage config flush mask */
ctl->ops.update_pending_flush_dspp(ctl,
- mixer[i].hw_dspp->idx);
+ mixer[i].hw_dspp->idx, DPU_DSPP_PCC);
}
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 27f029f..0eecb2f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -65,7 +65,10 @@
(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
#define CTL_SC7280_MASK \
- (BIT(DPU_CTL_ACTIVE_CFG) | BIT(DPU_CTL_FETCH_ACTIVE) |
BIT(DPU_CTL_VM_CFG))
+ (BIT(DPU_CTL_ACTIVE_CFG) | \
+BIT(DPU_CTL_FETCH_ACTIVE) | \
+BIT(DPU_CTL_VM_CFG) | \
+BIT(DPU_CTL_DSPP_SUB_BLOCK_FLUSH))
#define MERGE_3D_SM8150_MASK (0)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 38aa38a..8148e91 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -161,10 +161,12 @@ enum {
* DSPP sub-blocks
* @DPU_DSPP_PCC Panel color correction block
* @DPU_DSPP_GC Gamma correction block
+ * @DPU_DSPP_IGC Inverse Gamma correction block
*/
enum {
DPU_DSPP_PCC = 0x1,
DPU_DSPP_GC,
+ DPU_DSPP_IGC,
DPU_DSPP_MAX
};
@@ -191,6 +193,7 @@ enum {
* @DPU_CTL_SPLIT_DISPLAY: CTL supports video mode split display
* @DPU_CTL_FETCH_ACTIVE: Active CTL for fetch HW (SSPPs)
* @DPU_CTL_VM_CFG:CTL config to support multiple VMs
+ * @DPU_CTL_DSPP_BLOCK_FLUSH: CTL config to support dspp sub-block flush
* @DPU_CTL_MAX
*/
enum {
@@ -198,6 +201,7 @@ enum {
DPU_CTL_ACTIVE_CFG,
DPU_CTL_FETCH_ACTIVE,
DPU_CTL_VM_CFG,
+ DPU_CTL_DSPP_SUB_BLOCK_FLUSH,
DPU_CTL_MAX
};
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 a35ecb6..bbda09a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -33,6 +33,7 @@
#define CTL_INTF_FLUSH0x110
#define CTL_INTF_MASTER 0x134
#define CTL_FETCH_PIPE_ACTIVE 0x0FC
+#define CTL_DSPP_n_FLUSH(n) ((0x13C) + ((n - 1) * 4))
#define CTL_MIXER_BORDER_OUTBIT(24)
#define CTL_FLUSH_MASK_CTL BIT(17)
@@ -287,8 +288,9 @@ static void
dpu_hw_ctl_update_pending_flush_merge_3d_v1(struct dpu_hw_ctl *ctx,
}
static void dpu_hw_ctl_update_pending_flush_dspp(struct dpu_hw_ctl *ctx,
- enum dpu_dspp dspp)
+ enum dpu_dspp dspp, u32 dspp_sub_blk)
{
+
switch (dspp) {
case DSPP_0:
ctx->pending_flush_mask |= BIT(13);
@@ -307,6 +309,31 @@ static void dpu_hw_ctl_update_pending_flush_dspp(struct
dpu_hw_ctl *ctx,
}
}
+static void dpu_hw_ctl_update_pending_flush_dspp_subblocks(
+ struct dpu_hw_ctl *ctx, enum dpu_dspp dspp, u32 dspp_sub_blk)
+{
+ uint32_t flushbits = 0, active;
+
+ switch (dspp_sub_blk) {
+ case DPU_DSPP_IGC:
+ flushbits = BIT(2);
+ break;
+ case DPU_DSPP_PCC:
+ flushbits = BIT(4);
+ break;
+ case DPU_DSPP_GC:
+ flushbits = BIT(5);
+ break;
+ default:
+ return;
+ }
+
+ active = DPU_REG_READ(>hw, CTL_DSPP_n_FLUSH(dspp));
+ DPU_REG_WRITE(>hw, CTL_DSPP_n_FLUSH(dspp), active | flushbits);
+
+ ctx->pending_flush_mask |= BIT(29);
+}
+
static u32 dpu_hw_ctl_poll_reset_status(struct dpu_hw_ctl *ctx, u32 timeout_us)
{
