diff mbox series

drm/mgag200: Fix gamma lut not initialized for G200ER, G200EV, G200SE

Message ID 20231214163849.359691-1-jfalempe@redhat.com (mailing list archive)
State New, archived
Headers show
Series drm/mgag200: Fix gamma lut not initialized for G200ER, G200EV, G200SE | expand

Commit Message

Jocelyn Falempe Dec. 14, 2023, 4:38 p.m. UTC
When mgag200 switched from simple KMS to regular atomic helpers,
the initialization of the gamma settings was lost.
This leads to a black screen, if the bios/uefi doesn't use the same
pixel color depth.
This has been fixed with commit ad81e23426a6 ("drm/mgag200: Fix gamma
lut not initialized.") for most G200, but G200ER, G200EV, G200SE use
their own version of crtc_helper_atomic_enable() and need to be fixed
too.

Fixes: 1baf9127c482 ("drm/mgag200: Replace simple-KMS with regular atomic helpers")
Cc: <stable@vger.kernel.org> #v6.1+
Reported-by: Roger Sewell <roger.sewell@cantab.net>
Suggested-by: Roger Sewell <roger.sewell@cantab.net>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
---
 drivers/gpu/drm/mgag200/mgag200_drv.h    |  4 ++++
 drivers/gpu/drm/mgag200/mgag200_g200er.c |  2 ++
 drivers/gpu/drm/mgag200/mgag200_g200ev.c |  2 ++
 drivers/gpu/drm/mgag200/mgag200_g200se.c |  2 ++
 drivers/gpu/drm/mgag200/mgag200_mode.c   | 26 ++++++++++++++----------
 5 files changed, 25 insertions(+), 11 deletions(-)


base-commit: 6c9dbee84cd005bed5f9d07b3a2797ae6414b435

Comments

Thomas Zimmermann Dec. 18, 2023, 11:31 a.m. UTC | #1
Hi

Am 14.12.23 um 17:38 schrieb Jocelyn Falempe:
> When mgag200 switched from simple KMS to regular atomic helpers,
> the initialization of the gamma settings was lost.
> This leads to a black screen, if the bios/uefi doesn't use the same
> pixel color depth.
> This has been fixed with commit ad81e23426a6 ("drm/mgag200: Fix gamma
> lut not initialized.") for most G200, but G200ER, G200EV, G200SE use
> their own version of crtc_helper_atomic_enable() and need to be fixed
> too.
> 
> Fixes: 1baf9127c482 ("drm/mgag200: Replace simple-KMS with regular atomic helpers")
> Cc: <stable@vger.kernel.org> #v6.1+
> Reported-by: Roger Sewell <roger.sewell@cantab.net>
> Suggested-by: Roger Sewell <roger.sewell@cantab.net>
> Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
> ---
>   drivers/gpu/drm/mgag200/mgag200_drv.h    |  4 ++++
>   drivers/gpu/drm/mgag200/mgag200_g200er.c |  2 ++
>   drivers/gpu/drm/mgag200/mgag200_g200ev.c |  2 ++
>   drivers/gpu/drm/mgag200/mgag200_g200se.c |  2 ++
>   drivers/gpu/drm/mgag200/mgag200_mode.c   | 26 ++++++++++++++----------
>   5 files changed, 25 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
> index 57c7edcab602..ed90a92b5fcd 100644
> --- a/drivers/gpu/drm/mgag200/mgag200_drv.h
> +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
> @@ -392,6 +392,10 @@ void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,
>   	.destroy = drm_plane_cleanup, \
>   	DRM_GEM_SHADOW_PLANE_FUNCS
>   
> +void mgag200_crtc_set_gamma(struct mga_device *mdev,
> +			    const struct drm_format_info *format,
> +			    struct drm_property_blob *gamma_lut);
> +
>   enum drm_mode_status mgag200_crtc_helper_mode_valid(struct drm_crtc *crtc,
>   						    const struct drm_display_mode *mode);
>   int mgag200_crtc_helper_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *new_state);
> diff --git a/drivers/gpu/drm/mgag200/mgag200_g200er.c b/drivers/gpu/drm/mgag200/mgag200_g200er.c
> index bce267e0f7de..38815cb94c61 100644
> --- a/drivers/gpu/drm/mgag200/mgag200_g200er.c
> +++ b/drivers/gpu/drm/mgag200/mgag200_g200er.c
> @@ -202,6 +202,8 @@ static void mgag200_g200er_crtc_helper_atomic_enable(struct drm_crtc *crtc,
>   
>   	mgag200_g200er_reset_tagfifo(mdev);
>   
> +	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
> +
>   	mgag200_enable_display(mdev);
>   
>   	if (funcs->enable_vidrst)
> diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ev.c b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
> index ac957f42abe1..e698a3a499bf 100644
> --- a/drivers/gpu/drm/mgag200/mgag200_g200ev.c
> +++ b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
> @@ -203,6 +203,8 @@ static void mgag200_g200ev_crtc_helper_atomic_enable(struct drm_crtc *crtc,
>   
>   	mgag200_g200ev_set_hiprilvl(mdev);
>   
> +	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
> +
>   	mgag200_enable_display(mdev);
>   
>   	if (funcs->enable_vidrst)
> diff --git a/drivers/gpu/drm/mgag200/mgag200_g200se.c b/drivers/gpu/drm/mgag200/mgag200_g200se.c
> index bd6e573c9a1a..7e4ea0046a6b 100644
> --- a/drivers/gpu/drm/mgag200/mgag200_g200se.c
> +++ b/drivers/gpu/drm/mgag200/mgag200_g200se.c
> @@ -334,6 +334,8 @@ static void mgag200_g200se_crtc_helper_atomic_enable(struct drm_crtc *crtc,
>   
>   	mgag200_g200se_set_hiprilvl(mdev, adjusted_mode, format);
>   
> +	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
> +
>   	mgag200_enable_display(mdev);
>   
>   	if (funcs->enable_vidrst)
> diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
> index af3ce5a6a636..d2a04b317232 100644
> --- a/drivers/gpu/drm/mgag200/mgag200_mode.c
> +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
> @@ -65,9 +65,9 @@ static void mgag200_crtc_set_gamma_linear(struct mga_device *mdev,
>   	}
>   }
>   
> -static void mgag200_crtc_set_gamma(struct mga_device *mdev,
> -				   const struct drm_format_info *format,
> -				   struct drm_color_lut *lut)
> +static void mgag200_crtc_set_gamma_table(struct mga_device *mdev,
> +					 const struct drm_format_info *format,
> +					 struct drm_color_lut *lut)
>   {
>   	int i;
>   
> @@ -103,6 +103,16 @@ static void mgag200_crtc_set_gamma(struct mga_device *mdev,
>   	}
>   }
>   
> +void mgag200_crtc_set_gamma(struct mga_device *mdev,
> +			    const struct drm_format_info *format,
> +			    struct drm_property_blob *gamma_lut)
> +{
> +	if (gamma_lut)
> +		mgag200_crtc_set_gamma_table(mdev, format, gamma_lut->data);
> +	else
> +		mgag200_crtc_set_gamma_linear(mdev, format);
> +}

Please keep this open-coded its callers. With that changed

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>

> +
>   static inline void mga_wait_vsync(struct mga_device *mdev)
>   {
>   	unsigned long timeout = jiffies + HZ/10;
> @@ -616,10 +626,7 @@ void mgag200_crtc_helper_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_s
>   	if (crtc_state->enable && crtc_state->color_mgmt_changed) {
>   		const struct drm_format_info *format = mgag200_crtc_state->format;
>   
> -		if (crtc_state->gamma_lut)
> -			mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut->data);
> -		else
> -			mgag200_crtc_set_gamma_linear(mdev, format);
> +		mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
>   	}
>   }
>   
> @@ -642,10 +649,7 @@ void mgag200_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_
>   	if (funcs->pixpllc_atomic_update)
>   		funcs->pixpllc_atomic_update(crtc, old_state);
>   
> -	if (crtc_state->gamma_lut)
> -		mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut->data);
> -	else
> -		mgag200_crtc_set_gamma_linear(mdev, format);
> +	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
>   
>   	mgag200_enable_display(mdev);
>   
> 
> base-commit: 6c9dbee84cd005bed5f9d07b3a2797ae6414b435
Jocelyn Falempe Dec. 18, 2023, 1:03 p.m. UTC | #2
On 18/12/2023 12:31, Thomas Zimmermann wrote:
> Hi
> 
> Am 14.12.23 um 17:38 schrieb Jocelyn Falempe:
>> When mgag200 switched from simple KMS to regular atomic helpers,
>> the initialization of the gamma settings was lost.
>> This leads to a black screen, if the bios/uefi doesn't use the same
>> pixel color depth.
>> This has been fixed with commit ad81e23426a6 ("drm/mgag200: Fix gamma
>> lut not initialized.") for most G200, but G200ER, G200EV, G200SE use
>> their own version of crtc_helper_atomic_enable() and need to be fixed
>> too.
>>
>> Fixes: 1baf9127c482 ("drm/mgag200: Replace simple-KMS with regular 
>> atomic helpers")
>> Cc: <stable@vger.kernel.org> #v6.1+
>> Reported-by: Roger Sewell <roger.sewell@cantab.net>
>> Suggested-by: Roger Sewell <roger.sewell@cantab.net>
>> Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
>> ---
>>   drivers/gpu/drm/mgag200/mgag200_drv.h    |  4 ++++
>>   drivers/gpu/drm/mgag200/mgag200_g200er.c |  2 ++
>>   drivers/gpu/drm/mgag200/mgag200_g200ev.c |  2 ++
>>   drivers/gpu/drm/mgag200/mgag200_g200se.c |  2 ++
>>   drivers/gpu/drm/mgag200/mgag200_mode.c   | 26 ++++++++++++++----------
>>   5 files changed, 25 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h 
>> b/drivers/gpu/drm/mgag200/mgag200_drv.h
>> index 57c7edcab602..ed90a92b5fcd 100644
>> --- a/drivers/gpu/drm/mgag200/mgag200_drv.h
>> +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
>> @@ -392,6 +392,10 @@ void 
>> mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,
>>       .destroy = drm_plane_cleanup, \
>>       DRM_GEM_SHADOW_PLANE_FUNCS
>> +void mgag200_crtc_set_gamma(struct mga_device *mdev,
>> +                const struct drm_format_info *format,
>> +                struct drm_property_blob *gamma_lut);
>> +
>>   enum drm_mode_status mgag200_crtc_helper_mode_valid(struct drm_crtc 
>> *crtc,
>>                               const struct drm_display_mode *mode);
>>   int mgag200_crtc_helper_atomic_check(struct drm_crtc *crtc, struct 
>> drm_atomic_state *new_state);
>> diff --git a/drivers/gpu/drm/mgag200/mgag200_g200er.c 
>> b/drivers/gpu/drm/mgag200/mgag200_g200er.c
>> index bce267e0f7de..38815cb94c61 100644
>> --- a/drivers/gpu/drm/mgag200/mgag200_g200er.c
>> +++ b/drivers/gpu/drm/mgag200/mgag200_g200er.c
>> @@ -202,6 +202,8 @@ static void 
>> mgag200_g200er_crtc_helper_atomic_enable(struct drm_crtc *crtc,
>>       mgag200_g200er_reset_tagfifo(mdev);
>> +    mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
>> +
>>       mgag200_enable_display(mdev);
>>       if (funcs->enable_vidrst)
>> diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ev.c 
>> b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
>> index ac957f42abe1..e698a3a499bf 100644
>> --- a/drivers/gpu/drm/mgag200/mgag200_g200ev.c
>> +++ b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
>> @@ -203,6 +203,8 @@ static void 
>> mgag200_g200ev_crtc_helper_atomic_enable(struct drm_crtc *crtc,
>>       mgag200_g200ev_set_hiprilvl(mdev);
>> +    mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
>> +
>>       mgag200_enable_display(mdev);
>>       if (funcs->enable_vidrst)
>> diff --git a/drivers/gpu/drm/mgag200/mgag200_g200se.c 
>> b/drivers/gpu/drm/mgag200/mgag200_g200se.c
>> index bd6e573c9a1a..7e4ea0046a6b 100644
>> --- a/drivers/gpu/drm/mgag200/mgag200_g200se.c
>> +++ b/drivers/gpu/drm/mgag200/mgag200_g200se.c
>> @@ -334,6 +334,8 @@ static void 
>> mgag200_g200se_crtc_helper_atomic_enable(struct drm_crtc *crtc,
>>       mgag200_g200se_set_hiprilvl(mdev, adjusted_mode, format);
>> +    mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
>> +
>>       mgag200_enable_display(mdev);
>>       if (funcs->enable_vidrst)
>> diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c 
>> b/drivers/gpu/drm/mgag200/mgag200_mode.c
>> index af3ce5a6a636..d2a04b317232 100644
>> --- a/drivers/gpu/drm/mgag200/mgag200_mode.c
>> +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
>> @@ -65,9 +65,9 @@ static void mgag200_crtc_set_gamma_linear(struct 
>> mga_device *mdev,
>>       }
>>   }
>> -static void mgag200_crtc_set_gamma(struct mga_device *mdev,
>> -                   const struct drm_format_info *format,
>> -                   struct drm_color_lut *lut)
>> +static void mgag200_crtc_set_gamma_table(struct mga_device *mdev,
>> +                     const struct drm_format_info *format,
>> +                     struct drm_color_lut *lut)
>>   {
>>       int i;
>> @@ -103,6 +103,16 @@ static void mgag200_crtc_set_gamma(struct 
>> mga_device *mdev,
>>       }
>>   }
>> +void mgag200_crtc_set_gamma(struct mga_device *mdev,
>> +                const struct drm_format_info *format,
>> +                struct drm_property_blob *gamma_lut)
>> +{
>> +    if (gamma_lut)
>> +        mgag200_crtc_set_gamma_table(mdev, format, gamma_lut->data);
>> +    else
>> +        mgag200_crtc_set_gamma_linear(mdev, format);
>> +}
> 
> Please keep this open-coded its callers. With that changed
> 
> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>

Thanks for the review, yes I will change that.
If no other comments, I will push it to drm-misc-fixes tomorrow.
Jocelyn Falempe Dec. 20, 2023, 1:06 p.m. UTC | #3
I just merged it to drm-misc-fixes:

https://cgit.freedesktop.org/drm/drm-misc/commit/?h=drm-misc-fixes&id=11f9eb899ecc8c02b769cf8d2532ba12786a7af7

Thanks,
Thomas Zimmermann Dec. 20, 2023, 1:48 p.m. UTC | #4
Hi

Am 20.12.23 um 14:06 schrieb Jocelyn Falempe:
> I just merged it to drm-misc-fixes:
> 
> https://cgit.freedesktop.org/drm/drm-misc/commit/?h=drm-misc-fixes&id=11f9eb899ecc8c02b769cf8d2532ba12786a7af7
> 
> Thanks,

Thanks a lot for the fix.

Best regards
Thomas

>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index 57c7edcab602..ed90a92b5fcd 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -392,6 +392,10 @@  void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,
 	.destroy = drm_plane_cleanup, \
 	DRM_GEM_SHADOW_PLANE_FUNCS
 
+void mgag200_crtc_set_gamma(struct mga_device *mdev,
+			    const struct drm_format_info *format,
+			    struct drm_property_blob *gamma_lut);
+
 enum drm_mode_status mgag200_crtc_helper_mode_valid(struct drm_crtc *crtc,
 						    const struct drm_display_mode *mode);
 int mgag200_crtc_helper_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *new_state);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200er.c b/drivers/gpu/drm/mgag200/mgag200_g200er.c
index bce267e0f7de..38815cb94c61 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200er.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200er.c
@@ -202,6 +202,8 @@  static void mgag200_g200er_crtc_helper_atomic_enable(struct drm_crtc *crtc,
 
 	mgag200_g200er_reset_tagfifo(mdev);
 
+	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
+
 	mgag200_enable_display(mdev);
 
 	if (funcs->enable_vidrst)
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ev.c b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
index ac957f42abe1..e698a3a499bf 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200ev.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
@@ -203,6 +203,8 @@  static void mgag200_g200ev_crtc_helper_atomic_enable(struct drm_crtc *crtc,
 
 	mgag200_g200ev_set_hiprilvl(mdev);
 
+	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
+
 	mgag200_enable_display(mdev);
 
 	if (funcs->enable_vidrst)
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200se.c b/drivers/gpu/drm/mgag200/mgag200_g200se.c
index bd6e573c9a1a..7e4ea0046a6b 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200se.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200se.c
@@ -334,6 +334,8 @@  static void mgag200_g200se_crtc_helper_atomic_enable(struct drm_crtc *crtc,
 
 	mgag200_g200se_set_hiprilvl(mdev, adjusted_mode, format);
 
+	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
+
 	mgag200_enable_display(mdev);
 
 	if (funcs->enable_vidrst)
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index af3ce5a6a636..d2a04b317232 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -65,9 +65,9 @@  static void mgag200_crtc_set_gamma_linear(struct mga_device *mdev,
 	}
 }
 
-static void mgag200_crtc_set_gamma(struct mga_device *mdev,
-				   const struct drm_format_info *format,
-				   struct drm_color_lut *lut)
+static void mgag200_crtc_set_gamma_table(struct mga_device *mdev,
+					 const struct drm_format_info *format,
+					 struct drm_color_lut *lut)
 {
 	int i;
 
@@ -103,6 +103,16 @@  static void mgag200_crtc_set_gamma(struct mga_device *mdev,
 	}
 }
 
+void mgag200_crtc_set_gamma(struct mga_device *mdev,
+			    const struct drm_format_info *format,
+			    struct drm_property_blob *gamma_lut)
+{
+	if (gamma_lut)
+		mgag200_crtc_set_gamma_table(mdev, format, gamma_lut->data);
+	else
+		mgag200_crtc_set_gamma_linear(mdev, format);
+}
+
 static inline void mga_wait_vsync(struct mga_device *mdev)
 {
 	unsigned long timeout = jiffies + HZ/10;
@@ -616,10 +626,7 @@  void mgag200_crtc_helper_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_s
 	if (crtc_state->enable && crtc_state->color_mgmt_changed) {
 		const struct drm_format_info *format = mgag200_crtc_state->format;
 
-		if (crtc_state->gamma_lut)
-			mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut->data);
-		else
-			mgag200_crtc_set_gamma_linear(mdev, format);
+		mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
 	}
 }
 
@@ -642,10 +649,7 @@  void mgag200_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_
 	if (funcs->pixpllc_atomic_update)
 		funcs->pixpllc_atomic_update(crtc, old_state);
 
-	if (crtc_state->gamma_lut)
-		mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut->data);
-	else
-		mgag200_crtc_set_gamma_linear(mdev, format);
+	mgag200_crtc_set_gamma(mdev, format, crtc_state->gamma_lut);
 
 	mgag200_enable_display(mdev);