Similar to SC8280XP, the misconfigured SAFE logic causes rather
significant delays in __arm_smmu_tlb_sync(), resulting in poor
performance for things such as USB.
Introduce appropriate SAFE values for SC8180X to correct this.
Fixes: f3af2d6ee9ab ("drm/msm/dpu: Add SC8180x to hw catalog")
Signed-off-by: Bjorn Andersson <[email protected]>
---
drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
index e07f4c8c25b9..9ffc8804a6fc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
@@ -367,6 +367,7 @@ static const struct dpu_perf_cfg sc8180x_perf_data = {
.min_llcc_ib = 800000,
.min_dram_ib = 800000,
.danger_lut_tbl = {0xf, 0xffff, 0x0},
+ .safe_lut_tbl = {0xfff0, 0xf000, 0xffff},
.qos_lut_tbl = {
{.nentry = ARRAY_SIZE(sc7180_qos_linear),
.entries = sc7180_qos_linear
---
base-commit: 3cd3fe06ff81cfb3a969acb12a56796cff5af23d
change-id: 20231130-sc8180x-dpu-safe-lut-ffd0df221d67
Best regards,
--
Bjorn Andersson <[email protected]>
On Thu, Nov 30, 2023 at 04:35:01PM -0800, Bjorn Andersson wrote:
> Similar to SC8280XP, the misconfigured SAFE logic causes rather
> significant delays in __arm_smmu_tlb_sync(), resulting in poor
> performance for things such as USB.
>
> Introduce appropriate SAFE values for SC8180X to correct this.
>
> Fixes: f3af2d6ee9ab ("drm/msm/dpu: Add SC8180x to hw catalog")
Reported-by: Anton Bambura <[email protected]>
> Signed-off-by: Bjorn Andersson <[email protected]>
> ---
> drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
> index e07f4c8c25b9..9ffc8804a6fc 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h
> @@ -367,6 +367,7 @@ static const struct dpu_perf_cfg sc8180x_perf_data = {
> .min_llcc_ib = 800000,
> .min_dram_ib = 800000,
> .danger_lut_tbl = {0xf, 0xffff, 0x0},
> + .safe_lut_tbl = {0xfff0, 0xf000, 0xffff},
> .qos_lut_tbl = {
> {.nentry = ARRAY_SIZE(sc7180_qos_linear),
> .entries = sc7180_qos_linear
>
> ---
> base-commit: 3cd3fe06ff81cfb3a969acb12a56796cff5af23d
> change-id: 20231130-sc8180x-dpu-safe-lut-ffd0df221d67
>
> Best regards,
> --
> Bjorn Andersson <[email protected]>
>
On Thu, Nov 30, 2023 at 04:35:01PM -0800, Bjorn Andersson wrote:
> Similar to SC8280XP, the misconfigured SAFE logic causes rather
> significant delays in __arm_smmu_tlb_sync(), resulting in poor
> performance for things such as USB.
>
> Introduce appropriate SAFE values for SC8180X to correct this.
>
> Fixes: f3af2d6ee9ab ("drm/msm/dpu: Add SC8180x to hw catalog")
Missing CC stable tag?
> Signed-off-by: Bjorn Andersson <[email protected]>
Johan
On Fri, Dec 01, 2023 at 09:06:45AM +0100, Johan Hovold wrote:
> On Thu, Nov 30, 2023 at 04:35:01PM -0800, Bjorn Andersson wrote:
> > Similar to SC8280XP, the misconfigured SAFE logic causes rather
> > significant delays in __arm_smmu_tlb_sync(), resulting in poor
> > performance for things such as USB.
> >
> > Introduce appropriate SAFE values for SC8180X to correct this.
> >
> > Fixes: f3af2d6ee9ab ("drm/msm/dpu: Add SC8180x to hw catalog")
>
> Missing CC stable tag?
>
I figured it doesn't matter in practice, there's still a few issues left
preventing people from just running a stable kernel on this platform.
But it would be the right thing to do...
Cc: [email protected]
Regards,
Bjorn
> > Signed-off-by: Bjorn Andersson <[email protected]>
>
> Johan
>
On 01/12/2023 02:35, Bjorn Andersson wrote:
> Similar to SC8280XP, the misconfigured SAFE logic causes rather
> significant delays in __arm_smmu_tlb_sync(), resulting in poor
> performance for things such as USB.
>
> Introduce appropriate SAFE values for SC8180X to correct this.
>
> Fixes: f3af2d6ee9ab ("drm/msm/dpu: Add SC8180x to hw catalog")
> Signed-off-by: Bjorn Andersson <[email protected]>
> ---
> drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h | 1 +
> 1 file changed, 1 insertion(+)
Reviewed-by: Dmitry Baryshkov <[email protected]>
--
With best wishes
Dmitry
On Thu, 30 Nov 2023 16:35:01 -0800, Bjorn Andersson wrote:
> Similar to SC8280XP, the misconfigured SAFE logic causes rather
> significant delays in __arm_smmu_tlb_sync(), resulting in poor
> performance for things such as USB.
>
> Introduce appropriate SAFE values for SC8180X to correct this.
>
>
> [...]
Applied, thanks!
[1/1] drm/msm/dpu: Add missing safe_lut_tbl in sc8180x catalog
https://gitlab.freedesktop.org/lumag/msm/-/commit/7cc2621f16b6
Best regards,
--
Dmitry Baryshkov <[email protected]>