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Check for DRM prime

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This will indicate the user properly when multi-GPU is not supported by
their GPU driver.
This commit is contained in:
Scott Anderson 2018-08-05 18:25:25 +12:00
parent e8fa25e027
commit 2d8f53affd
1 changed files with 17 additions and 0 deletions
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17
backend/drm/drm.c
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@ -27,6 +27,23 @@
#include "util/signal.h"
bool check_drm_features(struct wlr_drm_backend *drm) {
if (drm->parent) {
uint64_t cap;
if (drmGetCap(drm->fd, DRM_CAP_PRIME, &cap) ||
!(cap & DRM_PRIME_CAP_IMPORT)) {
wlr_log(WLR_ERROR,
"PRIME import not supported on secondary GPU");
return false;
}
if (drmGetCap(drm->parent->fd, DRM_CAP_PRIME, &cap) ||
!(cap & DRM_PRIME_CAP_EXPORT)) {
wlr_log(WLR_ERROR,
"PRIME export not supported on primary GPU");
return false;
}
}
if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1)) {
wlr_log(WLR_ERROR, "DRM universal planes unsupported");
return false;