From: Alexandre Courbot Date: Wed, 14 Dec 2016 08:02:48 +0000 (+0900) Subject: drm/nouveau/secboot: set default error value in error register X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=45ef8450098fbb243ad65f590b965db1247d2d7e;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/nouveau/secboot: set default error value in error register Set a default error value in the mailbox 0 register so we can catch cases where the secure boot binary fails early without being able to report anything. Signed-off-by: Alexandre Courbot Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c index 2fcb2f761a54..813c4eb0b25f 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c @@ -67,6 +67,9 @@ gm200_secboot_run_blob(struct nvkm_secboot *sb, struct nvkm_gpuobj *blob) /* Disable interrupts as we will poll for the HALT bit */ nvkm_mc_intr_mask(sb->subdev.device, falcon->owner->index, false); + /* Set default error value in mailbox register */ + nvkm_falcon_wr32(falcon, 0x040, 0xdeada5a5); + /* Start the HS bootloader */ nvkm_falcon_set_start_addr(falcon, sb->acr->start_address); nvkm_falcon_start(falcon);