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xwayland: use drmGetNodeTypeFromFd for checking if a node is a render one 

Major/minor numbers are a.. major (ha) source of pain in FreeBSD porting.
In this case, Xwayland was thinking that /dev/dri/card0 is already a render node,
because the st_rdev on FreeBSD was passing the Linux-style check,
and because of the assumption, acceleration would fail because
various ioctls like AMDGPU_INFO would be denied on the non-render node.

Switch to libdrm's function that already works correctly on all platforms.

Signed-off-by: Greg V <greg@unrelenting.technology>
Reviewed-by: Emmanuel Vadot <manu@FreeBSD.org>
This commit is contained in:
Greg V 2020-09-15 17:41:04 +03:00 committed by Olivier Fourdan
parent add3df2001
commit 239ebdc9e4
1 changed files with 2 additions and 17 deletions
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19
hw/xwayland/xwayland-glamor-gbm.c
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@ -117,21 +117,6 @@ wl_drm_format_for_depth(int depth)
}
}
static char
is_fd_render_node(int fd)
{
struct stat render;
if (fstat(fd, &render))
return 0;
if (!S_ISCHR(render.st_mode))
return 0;
if (render.st_rdev & 0x80)
return 1;
return 0;
}
static char
is_device_path_render_node (const char *device_path)
{
@ -142,7 +127,7 @@ is_device_path_render_node (const char *device_path)
if (fd < 0)
return 0;
is_render_node = is_fd_render_node(fd);
is_render_node = (drmGetNodeTypeFromFd(fd) == DRM_NODE_RENDER);
close(fd);
return is_render_node;
@ -782,7 +767,7 @@ xwl_drm_handle_device(void *data, struct wl_drm *drm, const char *device)
return;
}
if (is_fd_render_node(xwl_gbm->drm_fd)) {
if (drmGetNodeTypeFromFd(xwl_gbm->drm_fd) == DRM_NODE_RENDER) {
xwl_gbm->fd_render_node = 1;
xwl_screen->expecting_event--;
} else {