diff mbox series

[v6,2/8] drm/msm/dpu: add DPU_PINGPONG_DSC feature bit for DPU < 7.0.0

Message ID 1683756453-22050-3-git-send-email-quic_khsieh@quicinc.com (mailing list archive)
State Superseded
Headers show
Series add DSC 1.2 dpu supports | expand

Commit Message

Kuogee Hsieh May 10, 2023, 10:07 p.m. UTC
DPU < 7.0.0 requires the PINGPONG block to be involved during
DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
encoder engine moved to INTF with the help of the flush mechanism.
Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.
Existing call-sites to these callbacks already skip calling into
them if the function pointer is NULL. Add DPU_PINGPONG_DSC feature
bit to all chipset with DPU < 7.0.0.

changes in v6:
-- split patches and rearrange to keep catalog related files at this patch

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 6 +++---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +++-
 2 files changed, 6 insertions(+), 4 deletions(-)

Comments

Dmitry Baryshkov May 11, 2023, 4:29 a.m. UTC | #1
On 11/05/2023 01:07, Kuogee Hsieh wrote:
> DPU < 7.0.0 requires the PINGPONG block to be involved during
> DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
> encoder engine moved to INTF with the help of the flush mechanism.

Nit: was moved.

> Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
> dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
> PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
> available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.

this looks good

> Existing call-sites to these callbacks already skip calling into
> them if the function pointer is NULL.

This is more relevant for patch 3 commit message.

> Add DPU_PINGPONG_DSC feature
> bit to all chipset with DPU < 7.0.0.

This is incorrect, as we do not change the catalog in this patch.

> 
> changes in v6:
> -- split patches and rearrange to keep catalog related files at this patch
> 
> Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 6 +++---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +++-
>   2 files changed, 6 insertions(+), 4 deletions(-)
> 
> 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 82b58c6..78e4bf6 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> @@ -76,13 +76,13 @@
>   	(BIT(DPU_DIM_LAYER) | BIT(DPU_MIXER_COMBINED_ALPHA))
>   
>   #define PINGPONG_SDM845_MASK \
> -	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE))
> +	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE) | BIT(DPU_PINGPONG_DSC))
>   
>   #define PINGPONG_SDM845_TE2_MASK \
> -	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
> +	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2) | BIT(DPU_PINGPONG_DSC))
>   
>   #define PINGPONG_SM8150_MASK \
> -	(BIT(DPU_PINGPONG_DITHER))
> +	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_DSC))
>   
>   #define CTL_SC7280_MASK \
>   	(BIT(DPU_CTL_ACTIVE_CFG) | \
> 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 6ee48f0..dc0a4da 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
> @@ -144,7 +144,8 @@ enum {
>    * @DPU_PINGPONG_TE2        Additional tear check block for split pipes
>    * @DPU_PINGPONG_SPLIT      PP block supports split fifo
>    * @DPU_PINGPONG_SLAVE      PP block is a suitable slave for split fifo
> - * @DPU_PINGPONG_DITHER,    Dither blocks
> + * @DPU_PINGPONG_DITHER     Dither blocks
> + * @DPU_PINGPONG_DSC        PP ops functions required for DSC
>    * @DPU_PINGPONG_MAX
>    */
>   enum {
> @@ -153,6 +154,7 @@ enum {
>   	DPU_PINGPONG_SPLIT,
>   	DPU_PINGPONG_SLAVE,
>   	DPU_PINGPONG_DITHER,
> +	DPU_PINGPONG_DSC,
>   	DPU_PINGPONG_MAX
>   };
>
Abhinav Kumar May 11, 2023, 4:38 a.m. UTC | #2
On 5/10/2023 9:29 PM, Dmitry Baryshkov wrote:
> On 11/05/2023 01:07, Kuogee Hsieh wrote:
>> DPU < 7.0.0 requires the PINGPONG block to be involved during
>> DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
>> encoder engine moved to INTF with the help of the flush mechanism.
> 
> Nit: was moved.
> 
>> Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
>> dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
>> PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
>> available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.
> 
> this looks good
> 
>> Existing call-sites to these callbacks already skip calling into
>> them if the function pointer is NULL.
> 
> This is more relevant for patch 3 commit message.
> 
>> Add DPU_PINGPONG_DSC feature
>> bit to all chipset with DPU < 7.0.0.
> 
> This is incorrect, as we do not change the catalog in this patch.
> 

Sorry but why not? The changes done to dpu_hw_catalog.c do exactly that.

>>
>> changes in v6:
>> -- split patches and rearrange to keep catalog related files at this 
>> patch
>>
>> Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
>> ---
>>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 6 +++---
>>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +++-
>>   2 files changed, 6 insertions(+), 4 deletions(-)
>>
>> 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 82b58c6..78e4bf6 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>> @@ -76,13 +76,13 @@
>>       (BIT(DPU_DIM_LAYER) | BIT(DPU_MIXER_COMBINED_ALPHA))
>>   #define PINGPONG_SDM845_MASK \
>> -    (BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE))
>> +    (BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE) | 
>> BIT(DPU_PINGPONG_DSC))
>>   #define PINGPONG_SDM845_TE2_MASK \
>> -    (PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
>> +    (PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2) | 
>> BIT(DPU_PINGPONG_DSC))
>>   #define PINGPONG_SM8150_MASK \
>> -    (BIT(DPU_PINGPONG_DITHER))
>> +    (BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_DSC))
>>   #define CTL_SC7280_MASK \
>>       (BIT(DPU_CTL_ACTIVE_CFG) | \
>> 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 6ee48f0..dc0a4da 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
>> @@ -144,7 +144,8 @@ enum {
>>    * @DPU_PINGPONG_TE2        Additional tear check block for split pipes
>>    * @DPU_PINGPONG_SPLIT      PP block supports split fifo
>>    * @DPU_PINGPONG_SLAVE      PP block is a suitable slave for split fifo
>> - * @DPU_PINGPONG_DITHER,    Dither blocks
>> + * @DPU_PINGPONG_DITHER     Dither blocks
>> + * @DPU_PINGPONG_DSC        PP ops functions required for DSC
>>    * @DPU_PINGPONG_MAX
>>    */
>>   enum {
>> @@ -153,6 +154,7 @@ enum {
>>       DPU_PINGPONG_SPLIT,
>>       DPU_PINGPONG_SLAVE,
>>       DPU_PINGPONG_DITHER,
>> +    DPU_PINGPONG_DSC,
>>       DPU_PINGPONG_MAX
>>   };
>
Dmitry Baryshkov May 11, 2023, 4:39 a.m. UTC | #3
On 11/05/2023 07:38, Abhinav Kumar wrote:
> 
> 
> On 5/10/2023 9:29 PM, Dmitry Baryshkov wrote:
>> On 11/05/2023 01:07, Kuogee Hsieh wrote:
>>> DPU < 7.0.0 requires the PINGPONG block to be involved during
>>> DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
>>> encoder engine moved to INTF with the help of the flush mechanism.
>>
>> Nit: was moved.
>>
>>> Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
>>> dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
>>> PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
>>> available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.
>>
>> this looks good
>>
>>> Existing call-sites to these callbacks already skip calling into
>>> them if the function pointer is NULL.
>>
>> This is more relevant for patch 3 commit message.
>>
>>> Add DPU_PINGPONG_DSC feature
>>> bit to all chipset with DPU < 7.0.0.
>>
>> This is incorrect, as we do not change the catalog in this patch.
>>
> 
> Sorry but why not? The changes done to dpu_hw_catalog.c do exactly that.

Because the patch does not add this feature bit to any of the chipsets. 
I think the relevant patch was lost somewhere during the rework/rebase.
Abhinav Kumar May 11, 2023, 4:42 a.m. UTC | #4
On 5/10/2023 9:39 PM, Dmitry Baryshkov wrote:
> On 11/05/2023 07:38, Abhinav Kumar wrote:
>>
>>
>> On 5/10/2023 9:29 PM, Dmitry Baryshkov wrote:
>>> On 11/05/2023 01:07, Kuogee Hsieh wrote:
>>>> DPU < 7.0.0 requires the PINGPONG block to be involved during
>>>> DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
>>>> encoder engine moved to INTF with the help of the flush mechanism.
>>>
>>> Nit: was moved.
>>>
>>>> Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
>>>> dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
>>>> PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
>>>> available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.
>>>
>>> this looks good
>>>
>>>> Existing call-sites to these callbacks already skip calling into
>>>> them if the function pointer is NULL.
>>>
>>> This is more relevant for patch 3 commit message.
>>>
>>>> Add DPU_PINGPONG_DSC feature
>>>> bit to all chipset with DPU < 7.0.0.
>>>
>>> This is incorrect, as we do not change the catalog in this patch.
>>>
>>
>> Sorry but why not? The changes done to dpu_hw_catalog.c do exactly that.
> 
> Because the patch does not add this feature bit to any of the chipsets. 
> I think the relevant patch was lost somewhere during the rework/rebase.
> 
> 
> 

This is adding it right?

   #define PINGPONG_SDM845_MASK \
-    (BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE))
+    (BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE) | 
BIT(DPU_PINGPONG_DSC))
   #define PINGPONG_SDM845_TE2_MASK \
Dmitry Baryshkov May 11, 2023, 4:49 a.m. UTC | #5
On 11/05/2023 07:42, Abhinav Kumar wrote:
> 
> 
> On 5/10/2023 9:39 PM, Dmitry Baryshkov wrote:
>> On 11/05/2023 07:38, Abhinav Kumar wrote:
>>>
>>>
>>> On 5/10/2023 9:29 PM, Dmitry Baryshkov wrote:
>>>> On 11/05/2023 01:07, Kuogee Hsieh wrote:
>>>>> DPU < 7.0.0 requires the PINGPONG block to be involved during
>>>>> DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
>>>>> encoder engine moved to INTF with the help of the flush mechanism.
>>>>
>>>> Nit: was moved.
>>>>
>>>>> Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
>>>>> dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
>>>>> PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
>>>>> available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.
>>>>
>>>> this looks good
>>>>
>>>>> Existing call-sites to these callbacks already skip calling into
>>>>> them if the function pointer is NULL.
>>>>
>>>> This is more relevant for patch 3 commit message.
>>>>
>>>>> Add DPU_PINGPONG_DSC feature
>>>>> bit to all chipset with DPU < 7.0.0.
>>>>
>>>> This is incorrect, as we do not change the catalog in this patch.
>>>>
>>>
>>> Sorry but why not? The changes done to dpu_hw_catalog.c do exactly that.
>>
>> Because the patch does not add this feature bit to any of the 
>> chipsets. I think the relevant patch was lost somewhere during the 
>> rework/rebase.
>>
>>
>>
> 
> This is adding it right?
> 
>    #define PINGPONG_SDM845_MASK \
> -    (BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE))
> +    (BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE) | 
> BIT(DPU_PINGPONG_DSC))
>    #define PINGPONG_SDM845_TE2_MASK \


Ah, I see now. I was expecting changes to the actual catlog files. 
Please excuse me.

As we are using PINGPONG_SDM845_MASK only up to and including DPU 6.x, 
this is correct.

I'd then suggest rephrasing this sentence to be more explicit:

Add DPU_PINGPONG_DSC to PINGPONG_SDM845_MASK, which is used for all DPU 
< 7.0 chipsets.
diff mbox series

Patch

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 82b58c6..78e4bf6 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -76,13 +76,13 @@ 
 	(BIT(DPU_DIM_LAYER) | BIT(DPU_MIXER_COMBINED_ALPHA))
 
 #define PINGPONG_SDM845_MASK \
-	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE))
+	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE) | BIT(DPU_PINGPONG_DSC))
 
 #define PINGPONG_SDM845_TE2_MASK \
-	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
+	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2) | BIT(DPU_PINGPONG_DSC))
 
 #define PINGPONG_SM8150_MASK \
-	(BIT(DPU_PINGPONG_DITHER))
+	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_DSC))
 
 #define CTL_SC7280_MASK \
 	(BIT(DPU_CTL_ACTIVE_CFG) | \
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 6ee48f0..dc0a4da 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -144,7 +144,8 @@  enum {
  * @DPU_PINGPONG_TE2        Additional tear check block for split pipes
  * @DPU_PINGPONG_SPLIT      PP block supports split fifo
  * @DPU_PINGPONG_SLAVE      PP block is a suitable slave for split fifo
- * @DPU_PINGPONG_DITHER,    Dither blocks
+ * @DPU_PINGPONG_DITHER     Dither blocks
+ * @DPU_PINGPONG_DSC        PP ops functions required for DSC
  * @DPU_PINGPONG_MAX
  */
 enum {
@@ -153,6 +154,7 @@  enum {
 	DPU_PINGPONG_SPLIT,
 	DPU_PINGPONG_SLAVE,
 	DPU_PINGPONG_DITHER,
+	DPU_PINGPONG_DSC,
 	DPU_PINGPONG_MAX
 };