drm/nve0/gr: attempt to resume after sm traps

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

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c
index 8cb12c7..84249f8 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c
@@ -89,9 +89,9 @@ static const struct nouveau_enum nve0_mp_warp_error[] = {
        {}
 };
 
-static const struct nouveau_enum nve0_mp_global_error[] = {
-       { 2, "MULTIPLE_WARP_ERRORS" },
-       { 3, "OUT_OF_STACK_SPACE" },
+static const struct nouveau_bitfield nve0_mp_global_error[] = {
+       { 0x00000004, "MULTIPLE_WARP_ERRORS" },
+       { 0x00000008, "OUT_OF_STACK_SPACE" },
        {}
 };
 
@@ -125,27 +125,17 @@ nve0_graph_mp_trap(struct nvc0_graph_priv *priv, int gpc, int tpc)
 {
        u32 werr = nv_rd32(priv, TPC_UNIT(gpc, tpc, 0x648));
        u32 gerr = nv_rd32(priv, TPC_UNIT(gpc, tpc, 0x650));
-       int i;
 
        nv_error(priv, "GPC%i/TPC%i/MP trap:", gpc, tpc);
-
-       for (i = 0; i <= 31; ++i) {
-               if (!(gerr & (1 << i)))
-                       continue;
-               pr_cont(" ");
-               nouveau_enum_print(nve0_mp_global_error, i);
-       }
-
+       nouveau_bitfield_print(nve0_mp_global_error, gerr);
        if (werr) {
                pr_cont(" ");
                nouveau_enum_print(nve0_mp_warp_error, werr & 0xffff);
        }
        pr_cont("\n");
 
-       /* disable MP trap to avoid spam */
-       nv_mask(priv, TPC_UNIT(gpc, tpc, 0x50c), 0x2, 0x0);
-
-       /* TODO: figure out how to resume after an MP trap */
+       nv_wr32(priv, TPC_UNIT(gpc, tpc, 0x648), 0x00000000);
+       nv_wr32(priv, TPC_UNIT(gpc, tpc, 0x650), gerr);
 }
 
 static void