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-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/bus/nvc0.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/bus/nvc0.c
index 10d95f5b2d74..b192d6246363 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bus/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bus/nvc0.c
@@ -36,12 +36,17 @@ nvc0_bus_intr(struct nouveau_subdev *subdev)
u32 stat = nv_rd32(pbus, 0x001100) & nv_rd32(pbus, 0x001140);
if (stat & 0x0000000e) {
- nv_error(pbus, "MMIO FAULT [");
- if (stat & 0x00000002) pr_cont(" !ENGINE");
- if (stat & 0x00000004) pr_cont(" IBUS");
- if (stat & 0x00000004) pr_cont(" TIMEOUT");
- pr_cont("]\n");
+ u32 addr = nv_rd32(pbus, 0x009084);
+ u32 data = nv_rd32(pbus, 0x009088);
+ nv_error(pbus, "MMIO %s of 0x%08x FAULT at 0x%06x [ %s%s%s]\n",
+ (addr & 0x00000002) ? "write" : "read", data,
+ (addr & 0x00fffffc),
+ (stat & 0x00000002) ? "!ENGINE " : "",
+ (stat & 0x00000004) ? "IBUS " : "",
+ (stat & 0x00000008) ? "TIMEOUT " : "");
+
+ nv_wr32(pbus, 0x009084, 0x00000000);
nv_wr32(pbus, 0x001100, (stat & 0x0000000e));
stat &= ~0x0000000e;
}