* [PATCH] drm/msm/a6xx: Correct the highestbank configuration
@ 2020-01-24 12:20 Akhil P Oommen
2020-01-24 15:46 ` [Freedreno] " Rob Clark
2020-01-24 18:26 ` Jordan Crouse
0 siblings, 2 replies; 5+ messages in thread
From: Akhil P Oommen @ 2020-01-24 12:20 UTC (permalink / raw)
To: freedreno; +Cc: dri-devel, linux-arm-msm, linux-kernel, jcrouse, smasetty
Highest bank bit configuration is different for a618 gpu. Update
it with the correct configuration which is the reset value incidentally.
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index daf0780..536d196 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -470,10 +470,12 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
/* Select CP0 to always count cycles */
gpu_write(gpu, REG_A6XX_CP_PERFCTR_CP_SEL_0, PERF_CP_ALWAYS_COUNT);
- gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
- gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
- gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
- gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
+ if (adreno_is_a630(adreno_gpu)) {
+ gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
+ gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
+ gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
+ gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
+ }
/* Enable fault detection */
gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL,
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [Freedreno] [PATCH] drm/msm/a6xx: Correct the highestbank configuration
2020-01-24 12:20 [PATCH] drm/msm/a6xx: Correct the highestbank configuration Akhil P Oommen
@ 2020-01-24 15:46 ` Rob Clark
2020-01-24 18:26 ` Jordan Crouse
1 sibling, 0 replies; 5+ messages in thread
From: Rob Clark @ 2020-01-24 15:46 UTC (permalink / raw)
To: Akhil P Oommen
Cc: freedreno, Sharat Masetty, linux-arm-msm, Jordan Crouse,
dri-devel, Linux Kernel Mailing List
On Fri, Jan 24, 2020 at 5:50 AM Akhil P Oommen <akhilpo@codeaurora.org> wrote:
>
> Highest bank bit configuration is different for a618 gpu. Update
> it with the correct configuration which is the reset value incidentally.
>
> Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
> Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Thanks, this fixes the UBWC issues on a618
Fixes: e812744c5f95 ("drm: msm: a6xx: Add support for A618")
Reviewed-by: Rob Clark <robdclark@gmail.com>
> ---
> drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> index daf0780..536d196 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> @@ -470,10 +470,12 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
> /* Select CP0 to always count cycles */
> gpu_write(gpu, REG_A6XX_CP_PERFCTR_CP_SEL_0, PERF_CP_ALWAYS_COUNT);
>
> - gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
> - gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
> - gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
> - gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
> + if (adreno_is_a630(adreno_gpu)) {
> + gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
> + gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
> + gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
> + gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
> + }
>
> /* Enable fault detection */
> gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL,
> --
> 2.7.4
> _______________________________________________
> Freedreno mailing list
> Freedreno@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/freedreno
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] drm/msm/a6xx: Correct the highestbank configuration
2020-01-24 12:20 [PATCH] drm/msm/a6xx: Correct the highestbank configuration Akhil P Oommen
2020-01-24 15:46 ` [Freedreno] " Rob Clark
@ 2020-01-24 18:26 ` Jordan Crouse
2020-01-31 7:59 ` Akhil P Oommen
1 sibling, 1 reply; 5+ messages in thread
From: Jordan Crouse @ 2020-01-24 18:26 UTC (permalink / raw)
To: Akhil P Oommen
Cc: freedreno, dri-devel, linux-arm-msm, linux-kernel, smasetty
On Fri, Jan 24, 2020 at 05:50:11PM +0530, Akhil P Oommen wrote:
> Highest bank bit configuration is different for a618 gpu. Update
> it with the correct configuration which is the reset value incidentally.
>
> Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
> Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
> ---
> drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> index daf0780..536d196 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> @@ -470,10 +470,12 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
> /* Select CP0 to always count cycles */
> gpu_write(gpu, REG_A6XX_CP_PERFCTR_CP_SEL_0, PERF_CP_ALWAYS_COUNT);
>
> - gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
> - gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
> - gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
> - gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
> + if (adreno_is_a630(adreno_gpu)) {
> + gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
> + gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
> + gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
> + gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
> + }
it shouldn't come as a surprise that everything in the a6xx family is going to
have a highest bank bit setting. Even though the a618 uses the reset value, I
think it would be less confusing to future folks if we explicitly program it:
if (adreno_is_a630(adreno_dev))
hbb = 2;
else
hbb = 0;
....
Jordan
--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] drm/msm/a6xx: Correct the highestbank configuration
2020-01-24 18:26 ` Jordan Crouse
@ 2020-01-31 7:59 ` Akhil P Oommen
2020-02-11 15:38 ` [Freedreno] " Rob Clark
0 siblings, 1 reply; 5+ messages in thread
From: Akhil P Oommen @ 2020-01-31 7:59 UTC (permalink / raw)
To: freedreno, dri-devel, linux-arm-msm, linux-kernel, smasetty
On 1/24/2020 11:56 PM, Jordan Crouse wrote:
> On Fri, Jan 24, 2020 at 05:50:11PM +0530, Akhil P Oommen wrote:
>> Highest bank bit configuration is different for a618 gpu. Update
>> it with the correct configuration which is the reset value incidentally.
>>
>> Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
>> Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
>> ---
>> drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 10 ++++++----
>> 1 file changed, 6 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
>> index daf0780..536d196 100644
>> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
>> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
>> @@ -470,10 +470,12 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
>> /* Select CP0 to always count cycles */
>> gpu_write(gpu, REG_A6XX_CP_PERFCTR_CP_SEL_0, PERF_CP_ALWAYS_COUNT);
>>
>> - gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
>> - gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
>> - gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
>> - gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
>> + if (adreno_is_a630(adreno_gpu)) {
>> + gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
>> + gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
>> + gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
>> + gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
>> + }
> it shouldn't come as a surprise that everything in the a6xx family is going to
> have a highest bank bit setting. Even though the a618 uses the reset value, I
> think it would be less confusing to future folks if we explicitly program it:
>
> if (adreno_is_a630(adreno_dev))
> hbb = 2;
> else
> hbb = 0;
I think it would be better if we keep this in the adreno_info. Yes, this
would waste a tiny bit of space for other gpu
entries in the gpulist. It is also possible to move this to a separate
struct and keep a pointer to it in the adreno_info.
But that is something we should try when there are more a6xx specific
configurations in future.
I have a new patch, but testing it is taking longer that I expected. I
will share it as soon as possible.
> ....
>
> Jordan
>
Akhil
--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Freedreno] [PATCH] drm/msm/a6xx: Correct the highestbank configuration
2020-01-31 7:59 ` Akhil P Oommen
@ 2020-02-11 15:38 ` Rob Clark
0 siblings, 0 replies; 5+ messages in thread
From: Rob Clark @ 2020-02-11 15:38 UTC (permalink / raw)
To: Akhil P Oommen
Cc: freedreno, dri-devel, linux-arm-msm, Linux Kernel Mailing List,
Sharat Masetty
On Fri, Jan 31, 2020 at 12:00 AM Akhil P Oommen <akhilpo@codeaurora.org> wrote:
>
> On 1/24/2020 11:56 PM, Jordan Crouse wrote:
> > On Fri, Jan 24, 2020 at 05:50:11PM +0530, Akhil P Oommen wrote:
> >> Highest bank bit configuration is different for a618 gpu. Update
> >> it with the correct configuration which is the reset value incidentally.
> >>
> >> Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
> >> Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
> >> ---
> >> drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 10 ++++++----
> >> 1 file changed, 6 insertions(+), 4 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> >> index daf0780..536d196 100644
> >> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> >> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> >> @@ -470,10 +470,12 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
> >> /* Select CP0 to always count cycles */
> >> gpu_write(gpu, REG_A6XX_CP_PERFCTR_CP_SEL_0, PERF_CP_ALWAYS_COUNT);
> >>
> >> - gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
> >> - gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
> >> - gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
> >> - gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
> >> + if (adreno_is_a630(adreno_gpu)) {
> >> + gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, 2 << 1);
> >> + gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, 2 << 1);
> >> + gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, 2 << 1);
> >> + gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, 2 << 21);
> >> + }
> > it shouldn't come as a surprise that everything in the a6xx family is going to
> > have a highest bank bit setting. Even though the a618 uses the reset value, I
> > think it would be less confusing to future folks if we explicitly program it:
> >
> > if (adreno_is_a630(adreno_dev))
> > hbb = 2;
> > else
> > hbb = 0;
>
> I think it would be better if we keep this in the adreno_info. Yes, this
> would waste a tiny bit of space for other gpu
> entries in the gpulist. It is also possible to move this to a separate
> struct and keep a pointer to it in the adreno_info.
> But that is something we should try when there are more a6xx specific
> configurations in future.
>
> I have a new patch, but testing it is taking longer that I expected. I
> will share it as soon as possible.
>
I'm going to pull this in as-is for msm-fixes. Please rebase the
change that you haven't posted yet on top of this patch, and send it
as a cleanup for the next cycle. Thanks
BR,
-R
^ permalink raw reply [flat|nested] 5+ messages in thread
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2020-01-24 12:20 [PATCH] drm/msm/a6xx: Correct the highestbank configuration Akhil P Oommen
2020-01-24 15:46 ` [Freedreno] " Rob Clark
2020-01-24 18:26 ` Jordan Crouse
2020-01-31 7:59 ` Akhil P Oommen
2020-02-11 15:38 ` [Freedreno] " Rob Clark
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