[PATCH] drm/amd/display: Revert logic for plane modifiers

Joaquín Ignacio Aramendía posted 1 patch 3 years, 5 months ago
There is a newer version of this series
.../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 50 +++----------------
1 file changed, 8 insertions(+), 42 deletions(-)
[PATCH] drm/amd/display: Revert logic for plane modifiers
Posted by Joaquín Ignacio Aramendía 3 years, 5 months ago
This file was split in commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
("drm/amd/display: Create a file dedicated to planes") the logic in
dm_plane_format_mod_supported() function got changed by a switch logic.
That change broke drm_plane modifiers setting on series 5000 APUs
(tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
leading to Gamescope not working as reproted on GitHub[1]

To reproduce the issue, enter a TTY and run:

$ gamescope -- vkcube

With said commit applied it will abort. This one restores the old logic,
fixing the issue that affects Gamescope.

[1](https://github.com/Plagman/gamescope/issues/624)

Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
---
 .../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 50 +++----------------
 1 file changed, 8 insertions(+), 42 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index dfd3be49eac8..81c1fc9468b8 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -1371,6 +1371,8 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 	const struct drm_format_info *info = drm_format_info(format);
 	struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
 
+	int i;
+
 	enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;
 
 	if (!info)
@@ -1386,49 +1388,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 		return true;
 	}
 
-	/* check if swizzle mode is supported by this version of DCN */
-	switch (asic_id.chip_family) {
-	case FAMILY_SI:
-	case FAMILY_CI:
-	case FAMILY_KV:
-	case FAMILY_CZ:
-	case FAMILY_VI:
-		/* asics before AI does not have modifier support */
-		return false;
-	case FAMILY_AI:
-	case FAMILY_RV:
-	case FAMILY_NV:
-	case FAMILY_VGH:
-	case FAMILY_YELLOW_CARP:
-	case AMDGPU_FAMILY_GC_10_3_6:
-	case AMDGPU_FAMILY_GC_10_3_7:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	case AMDGPU_FAMILY_GC_11_0_0:
-	case AMDGPU_FAMILY_GC_11_0_1:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	default:
-		ASSERT(0); /* Unknown asic */
-		break;
+	/* Check that the modifier is on the list of the plane's supported modifiers. */
+	for (i = 0; i < plane->modifier_count; i++) {
+		if (modifier == plane->modifiers[i])
+			break;
 	}
+	if (i == plane->modifier_count)
+		return false;
 
 	/*
 	 * For D swizzle the canonical modifier depends on the bpp, so check
-- 
2.38.0

Re: [PATCH] drm/amd/display: Revert logic for plane modifiers
Posted by Rodrigo Siqueira Jordao 3 years, 5 months ago

On 2022-10-19 11:15, Joaquín Ignacio Aramendía wrote:
> This file was split in commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
> ("drm/amd/display: Create a file dedicated to planes") the logic in
> dm_plane_format_mod_supported() function got changed by a switch logic.
> That change broke drm_plane modifiers setting on series 5000 APUs
> (tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
> leading to Gamescope not working as reproted on GitHub[1]
> 
> To reproduce the issue, enter a TTY and run:
> 
> $ gamescope -- vkcube
> 
> With said commit applied it will abort. This one restores the old logic,
> fixing the issue that affects Gamescope.
> 
> [1](https://github.com/Plagman/gamescope/issues/624>> 
> Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
> ---
>   .../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 50 +++----------------
>   1 file changed, 8 insertions(+), 42 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> index dfd3be49eac8..81c1fc9468b8 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> @@ -1371,6 +1371,8 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
>   	const struct drm_format_info *info = drm_format_info(format);
>   	struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;

Hi,

First of all, thanks a lot for this patch.

You can drop asic_id since it is not used anymore.

Thanks
Siqueira

>   
> +	int i;
> +
>   	enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;
>   
>   	if (!info)
> @@ -1386,49 +1388,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
>   		return true;
>   	}
>   
> -	/* check if swizzle mode is supported by this version of DCN */
> -	switch (asic_id.chip_family) {
> -	case FAMILY_SI:
> -	case FAMILY_CI:
> -	case FAMILY_KV:
> -	case FAMILY_CZ:
> -	case FAMILY_VI:
> -		/* asics before AI does not have modifier support */
> -		return false;
> -	case FAMILY_AI:
> -	case FAMILY_RV:
> -	case FAMILY_NV:
> -	case FAMILY_VGH:
> -	case FAMILY_YELLOW_CARP:
> -	case AMDGPU_FAMILY_GC_10_3_6:
> -	case AMDGPU_FAMILY_GC_10_3_7:
> -		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
> -		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
> -		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
> -		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
> -		case AMD_FMT_MOD_TILE_GFX9_64K_D:
> -			return true;
> -		default:
> -			return false;
> -		}
> -		break;
> -	case AMDGPU_FAMILY_GC_11_0_0:
> -	case AMDGPU_FAMILY_GC_11_0_1:
> -		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
> -		case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
> -		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
> -		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
> -		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
> -		case AMD_FMT_MOD_TILE_GFX9_64K_D:
> -			return true;
> -		default:
> -			return false;
> -		}
> -		break;
> -	default:
> -		ASSERT(0); /* Unknown asic */
> -		break;
> +	/* Check that the modifier is on the list of the plane's supported modifiers. */
> +	for (i = 0; i < plane->modifier_count; i++) {
> +		if (modifier == plane->modifiers[i])
> +			break;
>   	}
> +	if (i == plane->modifier_count)
> +		return false;
>   
>   	/*
>   	 * For D swizzle the canonical modifier depends on the bpp, so check

[PATCH] drm/amd/display: Revert logic for plane modifiers
Posted by Joaquín Ignacio Aramendía 3 years, 5 months ago
This file was split in commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
("drm/amd/display: Create a file dedicated to planes") and the logic in
dm_plane_format_mod_supported() function got changed by a switch logic.
That change broke drm_plane modifiers setting on series 5000 APUs
(tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
leading to Gamescope not working as reported on GitHub[1]

To reproduce the issue, enter a TTY and run:

$ gamescope -- vkcube

With said commit applied it will abort. This one restores the old logic,
fixing the issue that affects Gamescope.

[1](https://github.com/Plagman/gamescope/issues/624)

Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
---
 .../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 51 +++----------------
 1 file changed, 8 insertions(+), 43 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index dfd3be49eac8..1d47d2d69781 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -1369,7 +1369,8 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 {
 	struct amdgpu_device *adev = drm_to_adev(plane->dev);
 	const struct drm_format_info *info = drm_format_info(format);
-	struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
+
+	int i;

 	enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;

@@ -1386,49 +1387,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 		return true;
 	}

-	/* check if swizzle mode is supported by this version of DCN */
-	switch (asic_id.chip_family) {
-	case FAMILY_SI:
-	case FAMILY_CI:
-	case FAMILY_KV:
-	case FAMILY_CZ:
-	case FAMILY_VI:
-		/* asics before AI does not have modifier support */
-		return false;
-	case FAMILY_AI:
-	case FAMILY_RV:
-	case FAMILY_NV:
-	case FAMILY_VGH:
-	case FAMILY_YELLOW_CARP:
-	case AMDGPU_FAMILY_GC_10_3_6:
-	case AMDGPU_FAMILY_GC_10_3_7:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	case AMDGPU_FAMILY_GC_11_0_0:
-	case AMDGPU_FAMILY_GC_11_0_1:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	default:
-		ASSERT(0); /* Unknown asic */
-		break;
+	/* Check that the modifier is on the list of the plane's supported modifiers. */
+	for (i = 0; i < plane->modifier_count; i++) {
+		if (modifier == plane->modifiers[i])
+			break;
 	}
+	if (i == plane->modifier_count)
+		return false;

 	/*
 	 * For D swizzle the canonical modifier depends on the bpp, so check
--
2.38.1

Re: [PATCH] drm/amd/display: Revert logic for plane modifiers
Posted by Bas Nieuwenhuizen 3 years, 5 months ago
Please also add a

Cc: <stable@vger.kernel.org> # 6.0.x

to ensure it gets backported.

On Fri, Oct 21, 2022 at 9:24 AM Joaquín Ignacio Aramendía
<samsagax@gmail.com> wrote:
>
> This file was split in commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
> ("drm/amd/display: Create a file dedicated to planes") and the logic in
> dm_plane_format_mod_supported() function got changed by a switch logic.
> That change broke drm_plane modifiers setting on series 5000 APUs
> (tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
> leading to Gamescope not working as reported on GitHub[1]
>
> To reproduce the issue, enter a TTY and run:
>
> $ gamescope -- vkcube
>
> With said commit applied it will abort. This one restores the old logic,
> fixing the issue that affects Gamescope.
>
> [1](https://github.com/Plagman/gamescope/issues/624)
>
> Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
> ---
>  .../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 51 +++----------------
>  1 file changed, 8 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> index dfd3be49eac8..1d47d2d69781 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> @@ -1369,7 +1369,8 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
>  {
>         struct amdgpu_device *adev = drm_to_adev(plane->dev);
>         const struct drm_format_info *info = drm_format_info(format);
> -       struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
> +

Can remove this newline.

With that removed, this patch is

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

Thanks,
Bas

> +       int i;
>
>         enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;
>
> @@ -1386,49 +1387,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
>                 return true;
>         }
>
> -       /* check if swizzle mode is supported by this version of DCN */
> -       switch (asic_id.chip_family) {
> -       case FAMILY_SI:
> -       case FAMILY_CI:
> -       case FAMILY_KV:
> -       case FAMILY_CZ:
> -       case FAMILY_VI:
> -               /* asics before AI does not have modifier support */
> -               return false;
> -       case FAMILY_AI:
> -       case FAMILY_RV:
> -       case FAMILY_NV:
> -       case FAMILY_VGH:
> -       case FAMILY_YELLOW_CARP:
> -       case AMDGPU_FAMILY_GC_10_3_6:
> -       case AMDGPU_FAMILY_GC_10_3_7:
> -               switch (AMD_FMT_MOD_GET(TILE, modifier)) {
> -               case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D:
> -                       return true;
> -               default:
> -                       return false;
> -               }
> -               break;
> -       case AMDGPU_FAMILY_GC_11_0_0:
> -       case AMDGPU_FAMILY_GC_11_0_1:
> -               switch (AMD_FMT_MOD_GET(TILE, modifier)) {
> -               case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D:
> -                       return true;
> -               default:
> -                       return false;
> -               }
> -               break;
> -       default:
> -               ASSERT(0); /* Unknown asic */
> -               break;
> +       /* Check that the modifier is on the list of the plane's supported modifiers. */
> +       for (i = 0; i < plane->modifier_count; i++) {
> +               if (modifier == plane->modifiers[i])
> +                       break;
>         }
> +       if (i == plane->modifier_count)
> +               return false;
>
>         /*
>          * For D swizzle the canonical modifier depends on the bpp, so check
> --
> 2.38.1
>
[PATCH v2] drm/amd/display: Revert logic for plane modifiers
Posted by Joaquín Ignacio Aramendía 3 years, 5 months ago
This file was split in commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
("drm/amd/display: Create a file dedicated to planes") and the logic in
dm_plane_format_mod_supported() function got changed by a switch logic.
That change broke drm_plane modifiers setting on series 5000 APUs
(tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
leading to Gamescope not working as reported on GitHub[1]

To reproduce the issue, enter a TTY and run:

$ gamescope -- vkcube

With said commit applied it will abort. This one restores the old logic,
fixing the issue that affects Gamescope.

[1](https://github.com/Plagman/gamescope/issues/624)

Cc: <stable@vger.kernel.org> # 6.0.x
Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
---
Removed asic_id and excess newlines. Resend with correct Cc line.
---
 .../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 50 +++----------------
 1 file changed, 7 insertions(+), 43 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index dfd3be49eac8..e6854f7270a6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -1369,7 +1369,7 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 {
 	struct amdgpu_device *adev = drm_to_adev(plane->dev);
 	const struct drm_format_info *info = drm_format_info(format);
-	struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
+	int i;

 	enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;

@@ -1386,49 +1386,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 		return true;
 	}

-	/* check if swizzle mode is supported by this version of DCN */
-	switch (asic_id.chip_family) {
-	case FAMILY_SI:
-	case FAMILY_CI:
-	case FAMILY_KV:
-	case FAMILY_CZ:
-	case FAMILY_VI:
-		/* asics before AI does not have modifier support */
-		return false;
-	case FAMILY_AI:
-	case FAMILY_RV:
-	case FAMILY_NV:
-	case FAMILY_VGH:
-	case FAMILY_YELLOW_CARP:
-	case AMDGPU_FAMILY_GC_10_3_6:
-	case AMDGPU_FAMILY_GC_10_3_7:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	case AMDGPU_FAMILY_GC_11_0_0:
-	case AMDGPU_FAMILY_GC_11_0_1:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	default:
-		ASSERT(0); /* Unknown asic */
-		break;
+	/* Check that the modifier is on the list of the plane's supported modifiers. */
+	for (i = 0; i < plane->modifier_count; i++) {
+		if (modifier == plane->modifiers[i])
+			break;
 	}
+	if (i == plane->modifier_count)
+		return false;

 	/*
 	 * For D swizzle the canonical modifier depends on the bpp, so check
--
2.38.1

Re: [PATCH v2] drm/amd/display: Revert logic for plane modifiers
Posted by Alex Deucher 3 years, 5 months ago
Applied.  Thanks!

Alex

On Mon, Oct 24, 2022 at 9:17 AM Joaquín Ignacio Aramendía
<samsagax@gmail.com> wrote:
>
> This file was split in commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
> ("drm/amd/display: Create a file dedicated to planes") and the logic in
> dm_plane_format_mod_supported() function got changed by a switch logic.
> That change broke drm_plane modifiers setting on series 5000 APUs
> (tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
> leading to Gamescope not working as reported on GitHub[1]
>
> To reproduce the issue, enter a TTY and run:
>
> $ gamescope -- vkcube
>
> With said commit applied it will abort. This one restores the old logic,
> fixing the issue that affects Gamescope.
>
> [1](https://github.com/Plagman/gamescope/issues/624)
>
> Cc: <stable@vger.kernel.org> # 6.0.x
> Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
> ---
> Removed asic_id and excess newlines. Resend with correct Cc line.
> ---
>  .../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 50 +++----------------
>  1 file changed, 7 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> index dfd3be49eac8..e6854f7270a6 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> @@ -1369,7 +1369,7 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
>  {
>         struct amdgpu_device *adev = drm_to_adev(plane->dev);
>         const struct drm_format_info *info = drm_format_info(format);
> -       struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
> +       int i;
>
>         enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;
>
> @@ -1386,49 +1386,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
>                 return true;
>         }
>
> -       /* check if swizzle mode is supported by this version of DCN */
> -       switch (asic_id.chip_family) {
> -       case FAMILY_SI:
> -       case FAMILY_CI:
> -       case FAMILY_KV:
> -       case FAMILY_CZ:
> -       case FAMILY_VI:
> -               /* asics before AI does not have modifier support */
> -               return false;
> -       case FAMILY_AI:
> -       case FAMILY_RV:
> -       case FAMILY_NV:
> -       case FAMILY_VGH:
> -       case FAMILY_YELLOW_CARP:
> -       case AMDGPU_FAMILY_GC_10_3_6:
> -       case AMDGPU_FAMILY_GC_10_3_7:
> -               switch (AMD_FMT_MOD_GET(TILE, modifier)) {
> -               case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D:
> -                       return true;
> -               default:
> -                       return false;
> -               }
> -               break;
> -       case AMDGPU_FAMILY_GC_11_0_0:
> -       case AMDGPU_FAMILY_GC_11_0_1:
> -               switch (AMD_FMT_MOD_GET(TILE, modifier)) {
> -               case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
> -               case AMD_FMT_MOD_TILE_GFX9_64K_D:
> -                       return true;
> -               default:
> -                       return false;
> -               }
> -               break;
> -       default:
> -               ASSERT(0); /* Unknown asic */
> -               break;
> +       /* Check that the modifier is on the list of the plane's supported modifiers. */
> +       for (i = 0; i < plane->modifier_count; i++) {
> +               if (modifier == plane->modifiers[i])
> +                       break;
>         }
> +       if (i == plane->modifier_count)
> +               return false;
>
>         /*
>          * For D swizzle the canonical modifier depends on the bpp, so check
> --
> 2.38.1
>
[PATCH v2] drm/amd/display: Revert logic for plane modifiers
Posted by Joaquín Ignacio Aramendía 3 years, 5 months ago
This file was split in commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f
("drm/amd/display: Create a file dedicated to planes") and the logic in
dm_plane_format_mod_supported() function got changed by a switch logic.
That change broke drm_plane modifiers setting on series 5000 APUs
(tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
leading to Gamescope not working as reported on GitHub[1]

To reproduce the issue, enter a TTY and run:

$ gamescope -- vkcube

With said commit applied it will abort. This one restores the old logic,
fixing the issue that affects Gamescope.

[1](https://github.com/Plagman/gamescope/issues/624)

Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
---
Removed asic_id and excess newlines
---
 .../amd/display/amdgpu_dm/amdgpu_dm_plane.c   | 50 +++----------------
 1 file changed, 7 insertions(+), 43 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index dfd3be49eac8..e6854f7270a6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -1369,7 +1369,7 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 {
 	struct amdgpu_device *adev = drm_to_adev(plane->dev);
 	const struct drm_format_info *info = drm_format_info(format);
-	struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
+	int i;

 	enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;

@@ -1386,49 +1386,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 		return true;
 	}

-	/* check if swizzle mode is supported by this version of DCN */
-	switch (asic_id.chip_family) {
-	case FAMILY_SI:
-	case FAMILY_CI:
-	case FAMILY_KV:
-	case FAMILY_CZ:
-	case FAMILY_VI:
-		/* asics before AI does not have modifier support */
-		return false;
-	case FAMILY_AI:
-	case FAMILY_RV:
-	case FAMILY_NV:
-	case FAMILY_VGH:
-	case FAMILY_YELLOW_CARP:
-	case AMDGPU_FAMILY_GC_10_3_6:
-	case AMDGPU_FAMILY_GC_10_3_7:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	case AMDGPU_FAMILY_GC_11_0_0:
-	case AMDGPU_FAMILY_GC_11_0_1:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	default:
-		ASSERT(0); /* Unknown asic */
-		break;
+	/* Check that the modifier is on the list of the plane's supported modifiers. */
+	for (i = 0; i < plane->modifier_count; i++) {
+		if (modifier == plane->modifiers[i])
+			break;
 	}
+	if (i == plane->modifier_count)
+		return false;

 	/*
 	 * For D swizzle the canonical modifier depends on the bpp, so check
--
2.38.1