drm/nouveau/gr/gf100: add support for securely-managed falcons

Start securely-managed falcons using secboot functions since the process
for them is different from just writing CPUCTL.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
index 3fc5f7d..c56a886 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
@@ -28,6 +28,7 @@
 #include <core/client.h>
 #include <core/option.h>
 #include <core/firmware.h>
+#include <subdev/secboot.h>
 #include <subdev/fb.h>
 #include <subdev/mc.h>
 #include <subdev/pmu.h>
@@ -1428,21 +1429,40 @@ gf100_gr_init_ctxctl(struct gf100_gr *gr)
        const struct gf100_grctx_func *grctx = gr->func->grctx;
        struct nvkm_subdev *subdev = &gr->base.engine.subdev;
        struct nvkm_device *device = subdev->device;
+       struct nvkm_secboot *sb = device->secboot;
        int i;
 
        if (gr->firmware) {
                /* load fuc microcode */
                nvkm_mc_unk260(device->mc, 0);
-               gf100_gr_init_fw(gr, 0x409000, &gr->fuc409c, &gr->fuc409d);
-               gf100_gr_init_fw(gr, 0x41a000, &gr->fuc41ac, &gr->fuc41ad);
+
+               /* securely-managed falcons must be reset using secure boot */
+               if (nvkm_secboot_is_managed(sb, NVKM_SECBOOT_FALCON_FECS))
+                       nvkm_secboot_reset(sb, NVKM_SECBOOT_FALCON_FECS);
+               else
+                       gf100_gr_init_fw(gr, 0x409000, &gr->fuc409c,
+                                        &gr->fuc409d);
+               if (nvkm_secboot_is_managed(sb, NVKM_SECBOOT_FALCON_GPCCS))
+                       nvkm_secboot_reset(sb, NVKM_SECBOOT_FALCON_GPCCS);
+               else
+                       gf100_gr_init_fw(gr, 0x41a000, &gr->fuc41ac,
+                                        &gr->fuc41ad);
+
                nvkm_mc_unk260(device->mc, 1);
 
                /* start both of them running */
                nvkm_wr32(device, 0x409840, 0xffffffff);
                nvkm_wr32(device, 0x41a10c, 0x00000000);
                nvkm_wr32(device, 0x40910c, 0x00000000);
-               nvkm_wr32(device, 0x41a100, 0x00000002);
-               nvkm_wr32(device, 0x409100, 0x00000002);
+
+               if (nvkm_secboot_is_managed(sb, NVKM_SECBOOT_FALCON_GPCCS))
+                       nvkm_secboot_start(sb, NVKM_SECBOOT_FALCON_GPCCS);
+               else
+                       nvkm_wr32(device, 0x41a100, 0x00000002);
+               if (nvkm_secboot_is_managed(sb, NVKM_SECBOOT_FALCON_FECS))
+                       nvkm_secboot_start(sb, NVKM_SECBOOT_FALCON_FECS);
+               else
+                       nvkm_wr32(device, 0x409100, 0x00000002);
                if (nvkm_msec(device, 2000,
                        if (nvkm_rd32(device, 0x409800) & 0x00000001)
                                break;