Attachment 134764 Details for Bug 103138 – Possible fix

[patch] Possible fix

0001-drm-ttm-don-t-use-compound-pages-for-now.patch (text/plain), 1010 bytes, created by Christian König on 2017-10-09 12:35:29 UTC

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Creator: Christian König

Created: 2017-10-09 12:35:29 UTC

Size: 1010 bytes

patch

obsolete

>From 55339abb3fde3714a14a963469e10297a18eef2b Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
>Date: Mon, 9 Oct 2017 14:34:13 +0200
>Subject: [PATCH] drm/ttm: don't use compound pages for now
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>We need to figure out first how to correctly map them into the CPU page tables.
>
>Signed-off-by: Christian KÃ¶nig <christian.koenig@amd.com>
>---
> drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
>index e5ef10d..96ad129 100644
>--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
>+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
>@@ -913,6 +913,7 @@ static gfp_t ttm_dma_pool_gfp_flags(struct ttm_dma_tt *ttm_dma, bool huge)
> 	if (huge) {
> 		gfp_flags |= GFP_TRANSHUGE;
> 		gfp_flags &= ~__GFP_MOVABLE;
>+		gfp_flags &= ~__GFP_COMP;
> 	}
> 
> 	return gfp_flags;
>-- 
>2.7.4
>

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