diff options
author | Ben Skeggs <bskeggs@redhat.com> | 2020-01-15 06:34:22 +1000 |
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committer | Ben Skeggs <bskeggs@redhat.com> | 2020-01-15 10:50:29 +1000 |
commit | 22dcda45a3d1dfe6eeb4ab0a3b9aaa2333cb649d (patch) | |
tree | fc4d20a93edce93ca252d9f0663cd620e65d1c51 /drivers/gpu/drm/nouveau/nvkm/engine/gr/gp108.c | |
parent | ebe52a58acca308142ba2811e50a1b3bf047240d (diff) | |
download | linux-22dcda45a3d1dfe6eeb4ab0a3b9aaa2333cb649d.tar.bz2 |
drm/nouveau/acr: implement new subdev to replace "secure boot"
ACR is responsible for managing the firmware for LS (Low Secure) falcons,
this was previously handled in the driver by SECBOOT.
This rewrite started from some test code that attempted to replicate the
procedure RM uses in order to debug early Turing ACR firmwares that were
provided by NVIDIA for development.
Compared with SECBOOT, the code is structured into more individual steps,
with the aim of making the process easier to follow/debug, whilst making
it possible to support newer firmware versions that may have a different
binary format or API interface.
The HS (High Secure) binary(s) are now booted earlier in device init, to
match the behaviour of RM, whereas SECBOOT would delay this until we try
to boot the first LS falcon.
There's also additional debugging features available, with the intention
of making it easier to solve issues during FW/HW bring-up in the future.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/gr/gp108.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/gr/gp108.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gp108.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gp108.c index 1fe58461095a..113e4c1ba9e8 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gp108.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gp108.c @@ -23,12 +23,52 @@ #include <subdev/acr.h> +#include <nvfw/flcn.h> + +static void +gp108_gr_acr_bld_patch(struct nvkm_acr *acr, u32 bld, s64 adjust) +{ + struct flcn_bl_dmem_desc_v2 hdr; + nvkm_robj(acr->wpr, bld, &hdr, sizeof(hdr)); + hdr.code_dma_base = hdr.code_dma_base + adjust; + hdr.data_dma_base = hdr.data_dma_base + adjust; + nvkm_wobj(acr->wpr, bld, &hdr, sizeof(hdr)); + flcn_bl_dmem_desc_v2_dump(&acr->subdev, &hdr); +} + +static void +gp108_gr_acr_bld_write(struct nvkm_acr *acr, u32 bld, + struct nvkm_acr_lsfw *lsfw) +{ + const u64 base = lsfw->offset.img + lsfw->app_start_offset; + const u64 code = base + lsfw->app_resident_code_offset; + const u64 data = base + lsfw->app_resident_data_offset; + const struct flcn_bl_dmem_desc_v2 hdr = { + .ctx_dma = FALCON_DMAIDX_UCODE, + .code_dma_base = code, + .non_sec_code_off = lsfw->app_resident_code_offset, + .non_sec_code_size = lsfw->app_resident_code_size, + .code_entry_point = lsfw->app_imem_entry, + .data_dma_base = data, + .data_size = lsfw->app_resident_data_size, + }; + + nvkm_wobj(acr->wpr, bld, &hdr, sizeof(hdr)); +} + const struct nvkm_acr_lsf_func gp108_gr_gpccs_acr = { + .flags = NVKM_ACR_LSF_FORCE_PRIV_LOAD, + .bld_size = sizeof(struct flcn_bl_dmem_desc_v2), + .bld_write = gp108_gr_acr_bld_write, + .bld_patch = gp108_gr_acr_bld_patch, }; const struct nvkm_acr_lsf_func gp108_gr_fecs_acr = { + .bld_size = sizeof(struct flcn_bl_dmem_desc_v2), + .bld_write = gp108_gr_acr_bld_write, + .bld_patch = gp108_gr_acr_bld_patch, }; MODULE_FIRMWARE("nvidia/gp108/gr/fecs_bl.bin"); |