diff options
Diffstat (limited to 'meta-agl-drm-lease/dynamic-layers')
2 files changed, 46 insertions, 0 deletions
diff --git a/meta-agl-drm-lease/dynamic-layers/meta-raspberrypi/recipes-graphics/mesa/mesa/0001-Workaround-Disable-DRM_AUTH-checks-on-wayland-protocols.patch b/meta-agl-drm-lease/dynamic-layers/meta-raspberrypi/recipes-graphics/mesa/mesa/0001-Workaround-Disable-DRM_AUTH-checks-on-wayland-protocols.patch new file mode 100644 index 00000000..f6be51e0 --- /dev/null +++ b/meta-agl-drm-lease/dynamic-layers/meta-raspberrypi/recipes-graphics/mesa/mesa/0001-Workaround-Disable-DRM_AUTH-checks-on-wayland-protocols.patch @@ -0,0 +1,42 @@ +From f583672221b8451d03f739bc96428e97809d021a Mon Sep 17 00:00:00 2001 +From: Damian Hobson-Garcia <dhobsong@igel.co.jp> +Date: Tue, 5 Apr 2022 18:09:02 +0900 +Subject: [PATCH] Workaround: Disable DRM_AUTH check on wayland protocols + +DRM authentication does not work via a DRM Leases because the client +can only authenticate against a lease owner (primary node), since +the lease does not have a corresponding device file in the filesystem +for clients to open. + +The wl_drm protocol needs authentication to import/export prime fds +on kernel versions < 5.6. For newer kernel versions, prime +import/export no longer requires DRM_AUTH, so processing can proceed +even if DRM authentication fails. + +A proper implementation would check if the device is actually a +DRM lease and/or whether the import/export can succeed without +authentication. For now, just try to authenticate and ignore +any failures. +--- + src/egl/drivers/dri2/platform_drm.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c +index d0ab172..260a2c6 100644 +--- a/src/egl/drivers/dri2/platform_drm.c ++++ b/src/egl/drivers/dri2/platform_drm.c +@@ -508,7 +508,10 @@ dri2_drm_authenticate(_EGLDisplay *disp, uint32_t id) + { + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + +- return drmAuthMagic(dri2_dpy->fd, id); ++ /* WORKAROUND: Ignore DRM_AUTH failures. Ideally should only be done for ++ clienits coming through a DRM lease, but just make it global for now */ ++ drmAuthMagic(dri2_dpy->fd, id); ++ return 0; + } + + static void +-- +2.17.1 + diff --git a/meta-agl-drm-lease/dynamic-layers/meta-raspberrypi/recipes-graphics/mesa/mesa_22.%.bbappend b/meta-agl-drm-lease/dynamic-layers/meta-raspberrypi/recipes-graphics/mesa/mesa_22.%.bbappend new file mode 100644 index 00000000..15e3aeba --- /dev/null +++ b/meta-agl-drm-lease/dynamic-layers/meta-raspberrypi/recipes-graphics/mesa/mesa_22.%.bbappend @@ -0,0 +1,4 @@ +FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:" + +SRC_URI += "file://0001-Workaround-Disable-DRM_AUTH-checks-on-wayland-protocols.patch" + |