From 0117b3369f669e6f6ab9cc408358ba745dfc6d26 Mon Sep 17 00:00:00 2001 From: Alexandre Courbot Date: Wed, 26 Oct 2016 15:15:42 +0900 Subject: [PATCH] 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 Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c | 11 +++++++++++ .../gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h | 2 ++ 2 files changed, 13 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c index e6edde0bdf90..0a35d35e2f46 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c @@ -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; } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h index 3e86d45eabd9..9ca23c1e3aa9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h @@ -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; }; -- 2.20.1