提交 382b5bbb 编写于 作者: B Ben Skeggs

drm/nvc0/bus: report useful data on mmio fault

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
上级 a10220bb
......@@ -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;
}
......
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