Attachment 66876 Details for Bug 54129 – Possible fix

[patch] Possible fix

0001-drm-radeon-make-64bit-fences-more-robust.patch (text/plain), 1.48 KB, created by Christian König on 2012-09-09 09:47:55 UTC

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Creator: Christian König

Created: 2012-09-09 09:47:55 UTC

Size: 1.48 KB

patch

obsolete

>From 09e3cdb92c73a3c77a4f9f3b8f9c2d24be47fe89 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Christian=20K=C3=B6nig?= <deathsimple@vodafone.de>
>Date: Sun, 9 Sep 2012 11:45:19 +0200
>Subject: [PATCH] drm/radeon: make 64bit fences more robust
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>Signed-off-by: Christian KÃ¶nig <deathsimple@vodafone.de>
>---
> drivers/gpu/drm/radeon/radeon_fence.c |    6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
>index d24f5e4..999d1cf 100644
>--- a/drivers/gpu/drm/radeon/radeon_fence.c
>+++ b/drivers/gpu/drm/radeon/radeon_fence.c
>@@ -160,7 +160,7 @@ void radeon_fence_process(struct radeon_device *rdev, int ring)
> 	do {
> 		seq = radeon_fence_read(rdev, ring);
> 		seq |= last_seq & 0xffffffff00000000LL;
>-		if (seq < last_seq) {
>+		if (seq < (last_seq - 0x80000000LL)) {
> 			seq += 0x100000000LL;
> 		}
> 
>@@ -811,8 +811,8 @@ static void radeon_fence_driver_init_ring(struct radeon_device *rdev, int ring)
> 	rdev->fence_drv[ring].cpu_addr = NULL;
> 	rdev->fence_drv[ring].gpu_addr = 0;
> 	for (i = 0; i < RADEON_NUM_RINGS; ++i)
>-		rdev->fence_drv[ring].sync_seq[i] = 0;
>-	atomic64_set(&rdev->fence_drv[ring].last_seq, 0);
>+		rdev->fence_drv[ring].sync_seq[i] = 0x100000000LL;
>+	atomic64_set(&rdev->fence_drv[ring].last_seq, 0x100000000LL);
> 	rdev->fence_drv[ring].last_activity = jiffies;
> 	rdev->fence_drv[ring].initialized = false;
> }
>-- 
>1.7.9.5
>

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Attachments on bug 54129: 66187 | 66188 | 66876 | 67002 | 67003 | 67005

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