leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/nouveau/secboot: disable falcon interrupts when running blob

Browse Source 
Make sure we are not disturbed by spurious interrupts, as we poll the
halt bit anyway.

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 17:02:42 +09:00 committed by Ben Skeggs
parent 555cafb404
commit 3454a034b7
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c
View File

@ -27,6 +27,7 @@
#include <core/gpuobj.h>
#include <subdev/fb.h>
#include <engine/falcon.h>
#include <subdev/mc.h>
/**
* gm200_secboot_run_blob() - run the given high-secure blob
@ -63,6 +64,9 @@ gm200_secboot_run_blob(struct nvkm_secboot *sb, struct nvkm_gpuobj *blob)
if (ret)
goto end;
/* Disable interrupts as we will poll for the HALT bit */
nvkm_mc_intr_mask(sb->subdev.device, falcon->owner->index, false);
/* Start the HS bootloader */
nvkm_falcon_set_start_addr(falcon, sb->acr->start_address);
nvkm_falcon_start(falcon);
@ -79,6 +83,9 @@ gm200_secboot_run_blob(struct nvkm_secboot *sb, struct nvkm_gpuobj *blob)
}
end:
/* Reenable interrupts */
nvkm_mc_intr_mask(sb->subdev.device, falcon->owner->index, true);
/* We don't need the ACR firmware anymore */
nvkm_gpuobj_unmap(&vma);
nvkm_falcon_put(falcon, subdev);