drm/nouveau/disp/gv100-: halt NV_PDISP_FE_RM_INTR_STAT_CTRL_DISP_ERROR storms

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c
index 3aa2cc3af1e2463b44de94a1dd2e119450af305d..c1032527f79111aaa237cfd51e33b01f574eebf4 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gv100.c
@@ -155,6 +155,12 @@ gv100_disp_intr_ctrl_disp(struct nv50_disp *disp)
        if (stat & 0x00000008)
                stat &= ~0x00000008;
 
+       if (stat & 0x00000080) {
+               u32 error = nvkm_mask(device, 0x611848, 0x00000000, 0x00000000);
+               nvkm_warn(subdev, "error %08x\n", error);
+               stat &= ~0x00000080;
+       }
+
        if (stat & 0x00000100) {
                unsigned long wndws = nvkm_rd32(device, 0x611858);
                unsigned long other = nvkm_rd32(device, 0x61185c);