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Revert "minigbm/msm: disable UBWC for virtualization"

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This reverts commit 7a1a7dbda3.

BUG=b:243681772
TEST=confirm UBWC usage in arcvm

Cq-Depend: chromium:3900312
Change-Id: I126353bd91b75b7656257da00bc6fdf7d4c17060
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/3900553
Reviewed-by: Chia-I Wu <olv@google.com>
Reviewed-by: Ryan Neph <ryanneph@google.com>
Auto-Submit: Rob Clark <robdclark@chromium.org>
Tested-by: Rob Clark <robdclark@chromium.org>
Commit-Queue: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Rob Clark 2022-09-15 10:26:11 -07:00 • committed by Chromeos LUCI
parent 8f16db9fc8
commit 99387a7176
1 changed files with 0 additions and 15 deletions
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15
msm.c
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@ -209,21 +209,6 @@ static bool should_avoid_ubwc(void)
drv_logi("WARNING: waffle detected, disabling UBWC\n");
return true;
}
/* Sommelier relies on implicit modifier, which does not pass host modifier to
* zwp_linux_buffer_params_v1_add. Graphics will be broken if UBWC is enabled.
* Sommelier shall be fixed to mirror what arc wayland_service does, and then
* we can re-enable UBWC here.
*
* Inherit the trick from crrev/c/2523246 previously used for gtest. The side
* effect is all VM guests on msm will revert back to use linear modifier.
*
* See b/229147702
*/
if (!dlsym(RTLD_DEFAULT, "cupsFilePrintf")) {
drv_logi("WARNING: virtualization detected, disabling UBWC\n");
return true;
}
#endif
return false;
}