Attachment 136340 Details for Bug 104289 – Possible fix

[patch] Possible fix

0001-drm-amdgpu-fix-dw-estimation.patch (text/plain), 1.07 KB, created by Christian König on 2017-12-21 12:29:20 UTC

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Creator: Christian König

Created: 2017-12-21 12:29:20 UTC

Size: 1.07 KB

patch

obsolete

>From 9ca0de7a98dde0e29a6e0af019a9db0b052f8bce Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
>Date: Thu, 21 Dec 2017 13:27:00 +0100
>Subject: [PATCH] drm/amdgpu: fix dw estimation
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>In the absolute worse case we need 2 entries for fixing up the huge
>pages.
>
>Signed-off-by: Christian KÃ¶nig <christian.koenig@amd.com>
>---
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>index af7dceb7131e..0971a9747a66 100644
>--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>@@ -1206,7 +1206,7 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
> 	ndw = 64;
> 
> 	/* one PDE write for each huge page */
>-	ndw += ((nptes >> adev->vm_manager.block_size) + 1) * 6;
>+	ndw += ((nptes >> adev->vm_manager.block_size) + 2) * 6;
> 
> 	if (pages_addr) {
> 		/* copy commands needed */
>-- 
>2.11.0
>

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Attachments on bug 104289: 136340 | 136343

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