diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2022-06-01 20:47:53 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2022-11-09 10:44:58 +1000 |
| commit | d2922879116ca753e454fecde531d509eb0af69f (patch) | |
| tree | 29380c42d7c2b536ccb180de1b3b40705f42f76a | |
| parent | 2541626cfb794e57ba0575a6920826f591f7ced0 (diff) | |
| download | linux-d2922879116ca753e454fecde531d509eb0af69f.tar.bz2 | |
drm/nouveau/sec2: dump tracepc info on halt
- useful to distinguish between different issues.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/sec2/gp102.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c | 15 |
3 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h b/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h index 4c8b668bacb4..4868d2cb796f 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h @@ -47,6 +47,7 @@ void gm200_flcn_bind_inst(struct nvkm_falcon *, int, u64); int gm200_flcn_bind_stat(struct nvkm_falcon *, bool); extern const struct nvkm_falcon_func_pio gm200_flcn_imem_pio; extern const struct nvkm_falcon_func_pio gm200_flcn_dmem_pio; +void gm200_flcn_tracepc(struct nvkm_falcon *); int gp102_flcn_reset_eng(struct nvkm_falcon *); extern const struct nvkm_falcon_func_pio gp102_flcn_emem_pio; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sec2/gp102.c b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/gp102.c index a5c987ce58ed..b1e74bc49d72 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/sec2/gp102.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/gp102.c @@ -178,6 +178,11 @@ gp102_sec2_intr(struct nvkm_inth *inth) } if (intr & 0x00000010) { + if (atomic_read(&sec2->running)) { + FLCN_ERR(falcon, "halted"); + gm200_flcn_tracepc(falcon); + } + nvkm_falcon_wr32(falcon, 0x004, 0x00000010); intr &= ~0x00000010; } diff --git a/drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c b/drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c index b61506776105..af53cbbc632c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/falcon/gm200.c @@ -25,6 +25,21 @@ #include <subdev/mc.h> #include <subdev/timer.h> +void +gm200_flcn_tracepc(struct nvkm_falcon *falcon) +{ + u32 sctl = nvkm_falcon_rd32(falcon, 0x240); + u32 tidx = nvkm_falcon_rd32(falcon, 0x148); + int nr = (tidx & 0x00ff0000) >> 16, sp, ip; + + FLCN_ERR(falcon, "TRACEPC SCTL %08x TIDX %08x", sctl, tidx); + for (sp = 0; sp < nr; sp++) { + nvkm_falcon_wr32(falcon, 0x148, sp); + ip = nvkm_falcon_rd32(falcon, 0x14c); + FLCN_ERR(falcon, "TRACEPC: %08x", ip); + } +} + static void gm200_flcn_pio_dmem_rd(struct nvkm_falcon *falcon, u8 port, const u8 *img, int len) { |