drm/nve0/gr: add handling for a bunch of PGRAPH 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 4b45afb624610d03a8af0659c00b5561fa9b55ef..2a60258eefd4585577406d6c74cee9d9bf7c9d21 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c
@@ -77,11 +77,207 @@ nve0_graph_ctxctl_isr(struct nvc0_graph_priv *priv)
        nv_wr32(priv, 0x409c20, ustat);
 }
 
+static const struct nouveau_enum nve0_mp_warp_error[] = {
+       { 0x00, "NO_ERROR" },
+       { 0x01, "STACK_MISMATCH" },
+       { 0x05, "MISALIGNED_PC" },
+       { 0x08, "MISALIGNED_GPR" },
+       { 0x09, "INVALID_OPCODE" },
+       { 0x0d, "GPR_OUT_OF_BOUNDS" },
+       { 0x0e, "MEM_OUT_OF_BOUNDS" },
+       { 0x0f, "UNALIGNED_MEM_ACCESS" },
+       { 0x11, "INVALID_PARAM" },
+       {}
+};
+
+static const struct nouveau_enum nve0_mp_global_error[] = {
+       { 2, "MULTIPLE_WARP_ERRORS" },
+       { 3, "OUT_OF_STACK_SPACE" },
+       {}
+};
+
+static const struct nouveau_enum nve0_gpc_rop_error[] = {
+       { 1, "RT_PITCH_OVERRUN" },
+       { 4, "RT_WIDTH_OVERRUN" },
+       { 5, "RT_HEIGHT_OVERRUN" },
+       { 7, "ZETA_STORAGE_TYPE_MISMATCH" },
+       { 8, "RT_STORAGE_TYPE_MISMATCH" },
+       { 10, "RT_LINEAR_MISMATCH" },
+       {}
+};
+
+static const struct nouveau_enum nve0_sked_error[] = {
+       { 7, "CONSTANT_BUFFER_SIZE" },
+       { 9, "LOCAL_MEMORY_SIZE_POS" },
+       { 10, "LOCAL_MEMORY_SIZE_NEG" },
+       { 11, "WARP_CSTACK_SIZE" },
+       { 12, "TOTAL_TEMP_SIZE" },
+       { 13, "REGISTER_COUNT" },
+       { 18, "TOTAL_THREADS" },
+       { 20, "PROGRAM_OFFSET" },
+       { 21, "SHARED_MEMORY_SIZE" },
+       { 25, "SHARED_CONFIG_TOO_SMALL" },
+       { 26, "TOTAL_REGISTER_COUNT" },
+       {}
+};
+
+static void
+nve0_graph_mp_trap(struct nvc0_graph_priv *priv, int gpc, int tp)
+{
+       int i;
+       u32 werr = nv_rd32(priv, TPC_UNIT(gpc, tp, 0x648));
+       u32 gerr = nv_rd32(priv, TPC_UNIT(gpc, tp, 0x650));
+
+       nv_error(priv, "GPC%i/TP%i/MP trap:", gpc, tp);
+
+       for (i = 0; i <= 31; ++i) {
+               if (!(gerr & (1 << i)))
+                       continue;
+               pr_cont(" ");
+               nouveau_enum_print(nve0_mp_global_error, i);
+       }
+       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, tp, 0x50c), 0x2, 0x0);
+
+       /* TODO: figure out how to resume after an MP trap */
+}
+
+static void
+nve0_graph_tp_trap(struct nvc0_graph_priv *priv, int gpc, int tp)
+{
+       u32 stat = nv_rd32(priv, TPC_UNIT(gpc, tp, 0x508));
+
+       if (stat & 0x1) {
+               u32 trap = nv_rd32(priv, TPC_UNIT(gpc, tp, 0x224));
+               nv_error(priv, "GPC%i/TP%i/TEX trap: %08x\n",
+                        gpc, tp, trap);
+
+               nv_wr32(priv, TPC_UNIT(gpc, tp, 0x224), 0xc0000000);
+               stat &= ~0x1;
+       }
+
+       if (stat & 0x2) {
+               nve0_graph_mp_trap(priv, gpc, tp);
+               stat &= ~0x2;
+       }
+
+       if (stat & 0x4) {
+               u32 trap = nv_rd32(priv, TPC_UNIT(gpc, tp, 0x084));
+               nv_error(priv, "GPC%i/TP%i/POLY trap: %08x\n",
+                        gpc, tp, trap);
+
+               nv_wr32(priv, TPC_UNIT(gpc, tp, 0x084), 0xc0000000);
+               stat &= ~0x4;
+       }
+
+       if (stat & 0x8) {
+               u32 trap = nv_rd32(priv, TPC_UNIT(gpc, tp, 0x48c));
+               nv_error(priv, "GPC%i/TP%i/L1C trap: %08x\n",
+                        gpc, tp, trap);
+
+               nv_wr32(priv, TPC_UNIT(gpc, tp, 0x48c), 0xc0000000);
+               stat &= ~0x8;
+       }
+
+       if (stat) {
+               nv_error(priv, "GPC%i/TP%i: unknown stat %08x\n",
+                        gpc, tp, stat);
+       }
+}
+
+static void
+nve0_graph_gpc_trap(struct nvc0_graph_priv *priv)
+{
+       const u32 mask = nv_rd32(priv, 0x400118);
+       int gpc;
+
+       for (gpc = 0; gpc < 4; ++gpc) {
+               u32 stat;
+               int tp;
+
+               if (!(mask & (1 << gpc)))
+                       continue;
+               stat = nv_rd32(priv, GPC_UNIT(gpc, 0x2c90));
+
+               if (stat & 0x0001) {
+                       u32 trap[4];
+                       int i;
+
+                       trap[0] = nv_rd32(priv, GPC_UNIT(gpc, 0x0420));
+                       trap[1] = nv_rd32(priv, GPC_UNIT(gpc, 0x0434));
+                       trap[2] = nv_rd32(priv, GPC_UNIT(gpc, 0x0438));
+                       trap[3] = nv_rd32(priv, GPC_UNIT(gpc, 0x043c));
+
+                       nv_error(priv, "GPC%i/PROP trap:", gpc);
+                       for (i = 0; i <= 29; ++i) {
+                               if (!(trap[0] & (1 << i)))
+                                       continue;
+                               pr_cont(" ");
+                               nouveau_enum_print(nve0_gpc_rop_error, i);
+                       }
+                       pr_cont("\n");
+
+                       nv_error(priv, "x = %u, y = %u, "
+                                "format = %x, storage type = %x\n",
+                                trap[1] & 0xffff,
+                                trap[1] >> 16,
+                                (trap[2] >> 8) & 0x3f,
+                                trap[3] & 0xff);
+
+                       nv_wr32(priv, GPC_UNIT(gpc, 0x0420), 0xc0000000);
+                       stat &= ~0x0001;
+               }
+
+               if (stat & 0x0002) {
+                       u32 trap = nv_rd32(priv, GPC_UNIT(gpc, 0x0900));
+                       nv_error(priv, "GPC%i/ZCULL trap: %08x\n", gpc,
+                                trap);
+                       nv_wr32(priv, GPC_UNIT(gpc, 0x0900), 0xc0000000);
+                       stat &= ~0x0002;
+               }
+
+               if (stat & 0x0004) {
+                       u32 trap = nv_rd32(priv, GPC_UNIT(gpc, 0x1028));
+                       nv_error(priv, "GPC%i/CCACHE trap: %08x\n", gpc,
+                                trap);
+                       nv_wr32(priv, GPC_UNIT(gpc, 0x1028), 0xc0000000);
+                       stat &= ~0x0004;
+               }
+
+               if (stat & 0x0008) {
+                       u32 trap = nv_rd32(priv, GPC_UNIT(gpc, 0x0824));
+                       nv_error(priv, "GPC%i/ESETUP trap %08x\n", gpc,
+                                trap);
+                       nv_wr32(priv, GPC_UNIT(gpc, 0x0824), 0xc0000000);
+                       stat &= ~0x0008;
+               }
+
+               for (tp = 0; tp < 8; ++tp) {
+                       if (stat & (1 << (16 + tp)))
+                               nve0_graph_tp_trap(priv, gpc, tp);
+               }
+               stat &= ~0xff0000;
+
+               if (stat) {
+                       nv_error(priv, "GPC%i: unknown stat %08x\n",
+                                gpc, stat);
+               }
+       }
+}
+
+
 static void
 nve0_graph_trap_isr(struct nvc0_graph_priv *priv, int chid, u64 inst,
                struct nouveau_object *engctx)
 {
        u32 trap = nv_rd32(priv, 0x400108);
+       int i;
        int rop;
 
        if (trap & 0x00000001) {
@@ -102,6 +298,32 @@ nve0_graph_trap_isr(struct nvc0_graph_priv *priv, int chid, u64 inst,
                trap &= ~0x00000010;
        }
 
+       if (trap & 0x00000100) {
+               u32 stat = nv_rd32(priv, 0x407020);
+               nv_error(priv, "SKED ch %d [0x%010llx %s]:",
+                        chid, inst, nouveau_client_name(engctx));
+
+               for (i = 0; i <= 29; ++i) {
+                       if (!(stat & (1 << i)))
+                               continue;
+                       pr_cont(" ");
+                       nouveau_enum_print(nve0_sked_error, i);
+               }
+               pr_cont("\n");
+
+               if (stat & 0x3fffffff)
+                       nv_wr32(priv, 0x407020, 0x40000000);
+               nv_wr32(priv, 0x400108, 0x00000100);
+               trap &= ~0x00000100;
+       }
+
+       if (trap & 0x01000000) {
+               nv_error(priv, "GPC ch %d [0x%010llx %s]:\n",
+                        chid, inst, nouveau_client_name(engctx));
+               nve0_graph_gpc_trap(priv);
+               trap &= ~0x01000000;
+       }
+
        if (trap & 0x02000000) {
                for (rop = 0; rop < priv->rop_nr; rop++) {
                        u32 statz = nv_rd32(priv, ROP_UNIT(rop, 0x070));