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v2 of patch

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Laura Abbott 2017-11-22 19:01:11 -08:00
parent 1ee3c6e5fc
commit 5d8f3c9211
1 changed files with 31 additions and 9 deletions
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40
drm-ttm-don-t-attempt-to-use-hugepages-if-dma32-requested.mbox
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@ -1,13 +1,13 @@
From patchwork Thu Nov 23 02:15:03 2017 From patchwork Thu Nov 23 02:41:54 2017
Content-Type: text/plain; charset="utf-8" Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0 MIME-Version: 1.0
Content-Transfer-Encoding: 7bit Content-Transfer-Encoding: 7bit
Subject: drm/ttm: don't attempt to use hugepages if dma32 requested Subject: drm/ttm: don't attempt to use hugepages if dma32 requested (v2)
From: Dave Airlie <airlied@gmail.com> From: Dave Airlie <airlied@gmail.com>
X-Patchwork-Id: 189811 X-Patchwork-Id: 189812
Message-Id: <20171123021503.24227-1-airlied@gmail.com> Message-Id: <20171123024154.10023-1-airlied@gmail.com>
To: dri-devel@lists.freedesktop.org To: dri-devel@lists.freedesktop.org
Date: Thu, 23 Nov 2017 12:15:03 +1000 Date: Thu, 23 Nov 2017 12:41:54 +1000
From: Dave Airlie <airlied@redhat.com> From: Dave Airlie <airlied@redhat.com>
@ -55,19 +55,41 @@ This fixes an oops:
[ 30.133245] RIP: __alloc_pages_nodemask+0x35e/0x430 RSP: ffffa7818222bba8 [ 30.133245] RIP: __alloc_pages_nodemask+0x35e/0x430 RSP: ffffa7818222bba8
[ 30.133836] ---[ end trace d4f1deb60784f40a ]--- [ 30.133836] ---[ end trace d4f1deb60784f40a ]---
v2: handle free path as well.
Reported-by: Laura Abbott <labbott@redhat.com> Reported-by: Laura Abbott <labbott@redhat.com>
Reported-by: Adam Williamson <awilliam@redhat.com> Reported-by: Adam Williamson <awilliam@redhat.com>
Fixes: 0284f1ead87463bc17cf5e81a24fc65c052486f3 (drm/ttm: add transparent huge page support for cached allocations v2) Fixes: 0284f1ead87463bc17cf5e81a24fc65c052486f3 (drm/ttm: add transparent huge page support for cached allocations v2)
Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
--- ---
drivers/gpu/drm/ttm/ttm_page_alloc.c | 24 +++++++++++++----------- drivers/gpu/drm/ttm/ttm_page_alloc.c | 36 ++++++++++++++++++++----------------
1 file changed, 13 insertions(+), 11 deletions(-) 1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index 316f831..1d3dfce 100644 index 316f831..b0551aa 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -865,20 +865,22 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags, @@ -744,12 +744,14 @@ static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- for (j = 0; j < HPAGE_PMD_NR; ++j)
- if (p++ != pages[i + j])
- break;
+ if (!(flags & TTM_PAGE_FLAG_DMA32)) {
+ for (j = 0; j < HPAGE_PMD_NR; ++j)
+ if (p++ != pages[i + j])
+ break;
- if (j == HPAGE_PMD_NR)
- order = HPAGE_PMD_ORDER;
+ if (j == HPAGE_PMD_NR)
+ order = HPAGE_PMD_ORDER;
+ }
#endif
if (page_count(pages[i]) != 1)
@@ -865,20 +867,22 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags,
i = 0; i = 0;
#ifdef CONFIG_TRANSPARENT_HUGEPAGE #ifdef CONFIG_TRANSPARENT_HUGEPAGE