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| author | John Keeping <john@metanate.com> | 2022-10-20 19:12:47 +0100 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2022-10-29 14:40:53 +0200 |
| commit | ab78c74cfc5a3caa2bbb7627cb8f3bca40bb5fb0 (patch) | |
| tree | 1699fc5d4e8fade5fb704486701fc690afdde94a /tools/perf/scripts/python | |
| parent | 81e592f86f7afdb76d655e7fbd7803d7b8f985d8 (diff) | |
drm/rockchip: fix fbdev on non-IOMMU devices
When switching to the generic fbdev infrastructure, it was missed that
framebuffers were created with the alloc_kmap parameter to
rockchip_gem_create_object() set to true. The generic infrastructure
calls this via the .dumb_create() driver operation and thus creates a
buffer without an associated kmap.
alloc_kmap only makes a difference on devices without an IOMMU, but when
it is missing rockchip_gem_prime_vmap() fails and the framebuffer cannot
be used.
Detect the case where a buffer is being allocated for the framebuffer
and ensure a kernel mapping is created in this case.
Fixes: 24af7c34b290 ("drm/rockchip: use generic fbdev setup")
Reported-by: Johan Jonker <jbx6244@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221020181248.2497065-1-john@metanate.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions