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drm/nouveau/secboot: set default error value in error register

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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 <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Alexandre Courbot 2016-12-14 17:02:48 +09:00 committed by Ben Skeggs
parent b606234e2f
commit 45ef845009
1 changed files with 3 additions and 0 deletions
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drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c
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@ -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);