drm/ttm: allocate dummy_read_page without DMA32 on fail

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Some platforms may not have any memory in ZONE_DMA32 and use IOMMU to allow
32-bit-DMA-only device to work. Forcing GFP_DMA32 on dummy_read_page will
fail on such platforms. Retry after fail will get this works on such
platforms.

Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Link: https://patchwork.freedesktop.org/patch/msgid/tencent_8637383EE0A2C7CC870036AAF01909B26A0A@qq.com
Signed-off-by: Christian König <christian.koenig@amd.com>

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Yangyu Chen 2024-01-17 02:50:34 +08:00 • committed by Christian König

parent 3fc6c76a8d

commit 0a8c1feed3

1 changed files with 9 additions and 3 deletions

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drivers/gpu/drm/ttm/ttm_device.c

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