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| author | Igor Torrente <igormtorrente@gmail.com> | 2022-04-04 17:45:07 -0300 |
|---|---|---|
| committer | Melissa Wen <melissa.srw@gmail.com> | 2022-06-12 22:14:25 -0100 |
| commit | 16490922a95f4f67eb9d918f94a4f5b5bdc9eb80 (patch) | |
| tree | 0bd5027bf7a0b3d09e09d3469111283c47d32db4 /Documentation/gpu | |
| parent | 24f6fe3226c6f9f1b8406311a96b59c6e650b707 (diff) | |
| download | linux-16490922a95f4f67eb9d918f94a4f5b5bdc9eb80.tar.bz2 | |
drm: vkms: Alloc the compose frame using vzalloc
Currently, the memory to the composition frame is being allocated using
the kzmalloc. This comes with the limitation of maximum size of one
page size(which in the x86_64 is 4Kb and 4MB for default and hugepage
respectively).
Somes test of igt (e.g. kms_plane@pixel-format) uses more than 4MB when
testing some pixel formats like ARGB16161616 and the following error were
showing up when running kms_plane@plane-panning-bottom-right*:
[drm:vkms_composer_worker [vkms]] *ERROR* Cannot allocate memory for
output frame.
This problem is addessed by allocating the memory using kvzalloc that
circunvents this limitation.
V5: Improve the commit message and drop the debugging issues in VKMS
TO-DO(Melissa Wen).
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Igor Torrente <igormtorrente@gmail.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220404204515.42144-2-igormtorrente@gmail.com
Diffstat (limited to 'Documentation/gpu')
| -rw-r--r-- | Documentation/gpu/vkms.rst | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/Documentation/gpu/vkms.rst b/Documentation/gpu/vkms.rst index 9c873c3912cc..973e2d43108b 100644 --- a/Documentation/gpu/vkms.rst +++ b/Documentation/gpu/vkms.rst @@ -102,12 +102,6 @@ Debugging: - kms_plane: some test cases are failing due to timeout on capturing CRC; -- kms_flip: when running test cases in sequence, some successful individual - test cases are failing randomly; when individually, some successful test - cases display in the log the following error:: - - [drm:vkms_prepare_fb [vkms]] ERROR vmap failed: -4 - Virtual hardware (vblank-less) mode: - VKMS already has support for vblanks simulated via hrtimers, which can be |