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drm/nouveau/secboot: add LS firmware post-run hooks 

Add the ability for LS firmwares to declare a post-run hook that is
invoked right after the HS firmware is executed. This allows them to
e.g. write some initialization data into the falcon's DMEM.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Alexandre Courbot 2016-10-26 15:15:42 +09:00 committed by Ben Skeggs
parent 9bb55bb79f
commit 0117b3369f
2 changed files with 13 additions and 0 deletions
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11
drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
View File

@ -852,6 +852,8 @@ acr_r352_shutdown(struct acr_r352 *acr, struct nvkm_secboot *sb)
static int
acr_r352_bootstrap(struct acr_r352 *acr, struct nvkm_secboot *sb)
{
unsigned long managed_falcons = acr->base.managed_falcons;
int falcon_id;
int ret;
if (sb->wpr_set)
@ -872,6 +874,15 @@ acr_r352_bootstrap(struct acr_r352 *acr, struct nvkm_secboot *sb)
sb->wpr_set = true;
/* Run LS firmwares post_run hooks */
for_each_set_bit(falcon_id, &managed_falcons, NVKM_SECBOOT_FALCON_END) {
const struct acr_r352_ls_func *func =
acr->func->ls_func[falcon_id];
if (func->post_run)
func->post_run(&acr->base, sb);
}
return 0;
}

2
drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h
View File

@ -78,6 +78,7 @@ hsf_load_header_app_size(const struct hsf_load_header *hdr, u32 app)
* @generate_bl_desc: function called on a block of bl_desc_size to generate the
* proper bootloader descriptor for this LS firmware
* @bl_desc_size: size of the bootloader descriptor
* @post_run: hook called right after the ACR is executed
* @lhdr_flags: LS flags
*/
struct acr_r352_ls_func {
@ -85,6 +86,7 @@ struct acr_r352_ls_func {
void (*generate_bl_desc)(const struct nvkm_acr *,
const struct ls_ucode_img *, u64, void *);
u32 bl_desc_size;
void (*post_run)(const struct nvkm_acr *, const struct nvkm_secboot *);
u32 lhdr_flags;
};