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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 /drivers/gpu/drm/vkms/vkms_composer.c | |
| parent | drm/vkms: check plane_composer->map[0] before using it (diff) | |
| download | linux-dev-16490922a95f4f67eb9d918f94a4f5b5bdc9eb80.tar.xz linux-dev-16490922a95f4f67eb9d918f94a4f5b5bdc9eb80.zip | |
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 'drivers/gpu/drm/vkms/vkms_composer.c')
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_composer.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c index 0f5655f72640..775b97766e08 100644 --- a/drivers/gpu/drm/vkms/vkms_composer.c +++ b/drivers/gpu/drm/vkms/vkms_composer.c @@ -180,7 +180,7 @@ static int compose_active_planes(void **vaddr_out, int i; if (!*vaddr_out) { - *vaddr_out = kzalloc(gem_obj->size, GFP_KERNEL); + *vaddr_out = kvzalloc(gem_obj->size, GFP_KERNEL); if (!*vaddr_out) { DRM_ERROR("Cannot allocate memory for output frame."); return -ENOMEM; @@ -263,7 +263,7 @@ void vkms_composer_worker(struct work_struct *work) crtc_state); if (ret) { if (ret == -EINVAL && !wb_pending) - kfree(vaddr_out); + kvfree(vaddr_out); return; } @@ -275,7 +275,7 @@ void vkms_composer_worker(struct work_struct *work) crtc_state->wb_pending = false; spin_unlock_irq(&out->composer_lock); } else { - kfree(vaddr_out); + kvfree(vaddr_out); } /* |