From: "Kuehling, Felix" <Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
To: "amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Subject: [PATCH] drm/amdgpu: Fix unaligned memory copies
Date: Sat, 13 Jul 2019 06:42:57 +0000 [thread overview]
Message-ID: <20190713064245.20097-1-Felix.Kuehling@amd.com> (raw)
When starting a new mm_node, the page_offset becomes 0.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 37d9a3b09946..d0f6c23ec7cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -386,6 +386,7 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev,
src_node_start = amdgpu_mm_node_addr(src->bo, ++src_mm,
src->mem);
src_node_size = (src_mm->size << PAGE_SHIFT);
+ src_page_offset = 0;
} else {
src_node_start += cur_size;
src_page_offset = src_node_start & (PAGE_SIZE - 1);
@@ -395,6 +396,7 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev,
dst_node_start = amdgpu_mm_node_addr(dst->bo, ++dst_mm,
dst->mem);
dst_node_size = (dst_mm->size << PAGE_SHIFT);
+ dst_page_offset = 0;
} else {
dst_node_start += cur_size;
dst_page_offset = dst_node_start & (PAGE_SIZE - 1);
--
2.17.1
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next reply other threads:[~2019-07-13 6:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-13 6:42 Kuehling, Felix [this message]
[not found] ` <20190713064245.20097-1-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2019-07-15 16:12 ` [PATCH] drm/amdgpu: Fix unaligned memory copies Alex Deucher
[not found] ` <CADnq5_OCXiEoPU5+K2-NQ+9zNMVRd2mMwY6NYeK6Jp0ssLcjtg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-07-15 19:33 ` Christian König
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