Attachment 91088 Details for Bug 71431 – possible fix

[patch] possible fix

bug71431.diff (text/plain), 1.63 KB, created by Alex Deucher on 2013-12-21 14:50:37 UTC

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Creator: Alex Deucher

Created: 2013-12-21 14:50:37 UTC

Size: 1.63 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
>index 9702e55..21617b0 100644
>--- a/drivers/gpu/drm/radeon/evergreen.c
>+++ b/drivers/gpu/drm/radeon/evergreen.c
>@@ -3350,8 +3350,13 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
> 		tmp |= (1 << i);
> 	/* if all the backends are disabled, fix it up here */
> 	if ((disabled_rb_mask & tmp) == tmp) {
>-		for (i = 0; i < rdev->config.evergreen.max_backends; i++)
>-			disabled_rb_mask &= ~(1 << i);
>+		if (rdev->flags & RADEON_IS_IGP) {
>+			/* just enable the first one */
>+			disabled_rb_mask &= ~(1 << 0);
>+		} else {
>+			for (i = 0; i < rdev->config.evergreen.max_backends; i++)
>+				disabled_rb_mask &= ~(1 << i);
>+		}
> 	}
> 
> 	WREG32(GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES);
>diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
>index f59a9e9..38e206f 100644
>--- a/drivers/gpu/drm/radeon/ni.c
>+++ b/drivers/gpu/drm/radeon/ni.c
>@@ -1052,8 +1052,14 @@ static void cayman_gpu_init(struct radeon_device *rdev)
> 		tmp |= (1 << i);
> 	/* if all the backends are disabled, fix it up here */
> 	if ((disabled_rb_mask & tmp) == tmp) {
>-		for (i = 0; i < (rdev->config.cayman.max_backends_per_se * rdev->config.cayman.max_shader_engines); i++)
>-			disabled_rb_mask &= ~(1 << i);
>+		if (rdev->flags & RADEON_IS_IGP) {
>+			/* just enable the first one */
>+			disabled_rb_mask &= ~(1 << 0);
>+		} else {
>+			for (i = 0; i < (rdev->config.cayman.max_backends_per_se *
>+					 rdev->config.cayman.max_shader_engines); i++)
>+				disabled_rb_mask &= ~(1 << i);
>+		}
> 	}
> 
> 	WREG32(GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES);

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Attachments on bug 71431: 88936 | 88937 | 88939 | 89177 | 91088

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