memory will cause memory corruption.
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index e309d26170db..755daa332f8a
path because individual
driver might have different requirement.
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index
e job will eventually times out.
Reverse the order of calling page_flip and setting pflip_status to
fix the race.
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display
path because individual
driver might have different requirement.
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index
path because individual
driver might have different requirement.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd
On Fri, Dec 21, 2018 at 10:07:26AM +0100, Michel Dänzer wrote:
> On 2018-12-21 4:10 a.m., Yu Zhao wrote:
> > Userspace may request pitch alignment that is not supported by GPU.
> > Some requests 32, but GPU ignores it and uses default 64 when cpp is
> > 4. If GEM object is a
memory will cause memory corruption.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
memory will cause memory corruption.
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 686a26de50f9..883a4df2386d
path because individual
driver might have different requirement.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd
memory will cause memory corruption.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
On Fri, Dec 21, 2018 at 10:07:26AM +0100, Michel Dänzer wrote:
> On 2018-12-21 4:10 a.m., Yu Zhao wrote:
> > Userspace may request pitch alignment that is not supported by GPU.
> > Some requests 32, but GPU ignores it and uses default 64 when cpp is
> > 4. If GEM object is a
because individual
driver might have different requirement.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu
Userspace may request pitch alignment that is not supported by GPU.
Some requests 32, but GPU ignores it and uses default 64 when cpp is
4. If GEM object is allocated based on the smaller alignment, GPU
DMA will go out of bound.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
On Thu, Jan 03, 2019 at 05:33:19PM +0100, Michel Dänzer wrote:
> On 2018-12-30 2:00 a.m., Yu Zhao wrote:
> > Userspace may request pitch alignment that is not supported by GPU.
> > Some requests 32, but GPU ignores it and uses default 64 when cpp is
> > 4. If GEM object is a
because individual
driver might have different requirement.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
b/drivers/gpu/drm/amd/amdgpu
Userspace may request pitch alignment that is not supported by GPU.
Some requests 32, but GPU ignores it and uses default 64 when cpp is
4. If GEM object is allocated based on the smaller alignment, GPU
DMA will go out of bound.
Cc: sta...@vger.kernel.org # v4.2+
Signed-off-by: Yu Zhao
On Mon, Mar 25, 2019 at 02:22:50PM -0600, Yu Zhao wrote:
> dma_unmap_page() must be called with exactly the same dma address
> and size returned by dma_map_page(). Otherwise, the function may
> fail.
>
> This is at least the case for debug_dma_unmap_page() and AMD iommu
> unmap_
dma_unmap_page() must be called with exactly the same dma address
and size returned by dma_map_page(). Otherwise, the function may
fail.
This is at least the case for debug_dma_unmap_page() and AMD iommu
unmap_page callback.
Signed-off-by: Yu Zhao
---
drivers/gpu/drm/ttm/ttm_page_alloc.c | 11
On Thu, Jan 30, 2025 at 3:01 AM Kirill A. Shutemov
wrote:
>
> Now as PG_reclaim is gone, its name can be reclaimed for better
> use :)
>
> Rename PG_dropbehind to PG_reclaim and rename all helpers around it.
>
> Signed-off-by: Kirill A. Shutemov
Acked-by: Yu Zhao
s to replace whole deactivate_file_folio() machinery
> with simple folio_set_dropbehind().
>
> Signed-off-by: Kirill A. Shutemov
Acked-by: Yu Zhao
On Sat, Feb 1, 2025 at 1:02 AM Kairui Song wrote:
>
> On Thu, Jan 30, 2025 at 6:02 PM Kirill A. Shutemov
> wrote:
> >
> > The recently introduced PG_dropbehind allows for freeing folios
> > immediately after writeback. Unlike PG_reclaim, it does not need vmscan
> > to be involved to get the folio
gt; Signed-off-by: Kirill A. Shutemov
Acked-by: Yu Zhao
On Tue, Jan 14, 2025 at 1:30 AM Kirill A. Shutemov
wrote:
>
> On Mon, Jan 13, 2025 at 03:28:43PM +, Matthew Wilcox wrote:
> > On Mon, Jan 13, 2025 at 11:34:53AM +0200, Kirill A. Shutemov wrote:
> > > diff --git a/mm/migrate.c b/mm/migrate.c
> > > index caadbe393aa2..beba72da5e33 100644
> > > -
On Tue, Jan 14, 2025 at 11:03 AM Yosry Ahmed wrote:
>
> On Tue, Jan 14, 2025 at 12:12 AM Kirill A. Shutemov
> wrote:
> >
> > On Mon, Jan 13, 2025 at 08:17:20AM -0800, Yosry Ahmed wrote:
> > > On Mon, Jan 13, 2025 at 1:35 AM Kirill A. Shutemov
> > > wrote:
> > > >
> > > > The recently introduced
On Tue, Jan 14, 2025 at 9:28 PM Yu Zhao wrote:
>
> On Tue, Jan 14, 2025 at 11:03 AM Yosry Ahmed wrote:
> >
> > On Tue, Jan 14, 2025 at 12:12 AM Kirill A. Shutemov
> > wrote:
> > >
> > > On Mon, Jan 13, 2025 at 08:17:20AM -0800, Yosry Ahmed wrote:
> &
s to replace whole deactivate_file_folio() machinery
> with simple folio_set_dropbehind().
>
> Signed-off-by: Kirill A. Shutemov
Acked-by: Yu Zhao
On Wed, Jan 15, 2025 at 2:32 AM Kirill A. Shutemov
wrote:
>
> Nobody sets the flag anymore.
>
> Remove the PG_reclaim, making PG_readhead exclusive user of the page
> flag bit.
>
> Signed-off-by: Kirill A. Shutemov
Acked-by: Yu Zhao
On Wed, Jan 15, 2025 at 2:32 AM Kirill A. Shutemov
wrote:
>
> Now as PG_reclaim is gone, its name can be reclaimed for better
> use :)
>
> Rename PG_dropbehind to PG_reclaim and rename all helpers around it.
>
> Signed-off-by: Kirill A. Shutemov
Acked-by: Yu Zhao
On Wed, Jan 15, 2025 at 2:35 PM Matthew Wilcox wrote:
>
> On Wed, Jan 15, 2025 at 11:31:29AM +0200, Kirill A. Shutemov wrote:
> > -static void lru_deactivate_file(struct lruvec *lruvec, struct folio *folio)
> > -{
> > - bool active = folio_test_active(folio) || lru_gen_enabled();
> > - lon
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