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authorBen Skeggs <bskeggs@redhat.com>2014-02-23 23:19:45 +1000
committerBen Skeggs <bskeggs@redhat.com>2014-03-26 14:00:50 +1000
commit885f3ced1a48385110c726af80a85cd5d2898279 (patch)
tree0ad0b309093cf4dc9af4195e5bc63232a063933d /drivers/gpu/drm/nouveau/core/engine/fifo
parent3d61b967d257ca3be19b0556d78f2b30a737c47f (diff)
downloadop-kernel-dev-885f3ced1a48385110c726af80a85cd5d2898279.zip
op-kernel-dev-885f3ced1a48385110c726af80a85cd5d2898279.tar.gz
drm/nve0/fifo: single printk for mmu fault data
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/fifo')
-rw-r--r--drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c164
1 files changed, 92 insertions, 72 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
index 360987d..9c8ff65 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
@@ -409,9 +409,35 @@ static const struct nouveau_enum nve0_fifo_sched_reason[] = {
{}
};
-static const struct nouveau_enum nve0_fifo_fault_engine[] = {
+static void
+nve0_fifo_intr_sched(struct nve0_fifo_priv *priv)
+{
+ u32 intr = nv_rd32(priv, 0x00254c);
+ u32 code = intr & 0x000000ff;
+ nv_error(priv, "SCHED_ERROR [");
+ nouveau_enum_print(nve0_fifo_sched_reason, code);
+ pr_cont("]\n");
+}
+
+static void
+nve0_fifo_intr_chsw(struct nve0_fifo_priv *priv)
+{
+ u32 stat = nv_rd32(priv, 0x00256c);
+ nv_error(priv, "CHSW_ERROR 0x%08x\n", stat);
+ nv_wr32(priv, 0x00256c, stat);
+}
+
+static void
+nve0_fifo_intr_dropped_fault(struct nve0_fifo_priv *priv)
+{
+ u32 stat = nv_rd32(priv, 0x00259c);
+ nv_error(priv, "DROPPED_MMU_FAULT 0x%08x\n", stat);
+}
+
+static const struct nouveau_enum
+nve0_fifo_fault_engine[] = {
{ 0x00, "GR", NULL, NVDEV_ENGINE_GR },
- { 0x03, "IFB" },
+ { 0x03, "IFB", NULL, NVDEV_ENGINE_IFB },
{ 0x04, "BAR1", NULL, NVDEV_SUBDEV_BAR },
{ 0x05, "BAR3", NULL, NVDEV_SUBDEV_INSTMEM },
{ 0x07, "PBDMA0", NULL, NVDEV_ENGINE_FIFO },
@@ -429,7 +455,8 @@ static const struct nouveau_enum nve0_fifo_fault_engine[] = {
{}
};
-static const struct nouveau_enum nve0_fifo_fault_reason[] = {
+static const struct nouveau_enum
+nve0_fifo_fault_reason[] = {
{ 0x00, "PDE" },
{ 0x01, "PDE_SIZE" },
{ 0x02, "PTE" },
@@ -449,7 +476,8 @@ static const struct nouveau_enum nve0_fifo_fault_reason[] = {
{}
};
-static const struct nouveau_enum nve0_fifo_fault_hubclient[] = {
+static const struct nouveau_enum
+nve0_fifo_fault_hubclient[] = {
{ 0x00, "VIP" },
{ 0x01, "CE0" },
{ 0x02, "CE1" },
@@ -485,7 +513,8 @@ static const struct nouveau_enum nve0_fifo_fault_hubclient[] = {
{}
};
-static const struct nouveau_enum nve0_fifo_fault_gpcclient[] = {
+static const struct nouveau_enum
+nve0_fifo_fault_gpcclient[] = {
{ 0x00, "L1_0" }, { 0x01, "T1_0" }, { 0x02, "PE_0" },
{ 0x03, "L1_1" }, { 0x04, "T1_1" }, { 0x05, "PE_1" },
{ 0x06, "L1_2" }, { 0x07, "T1_2" }, { 0x08, "PE_2" },
@@ -511,73 +540,67 @@ static const struct nouveau_enum nve0_fifo_fault_gpcclient[] = {
};
static void
-nve0_fifo_intr_sched(struct nve0_fifo_priv *priv)
-{
- u32 intr = nv_rd32(priv, 0x00254c);
- u32 code = intr & 0x000000ff;
- nv_error(priv, "SCHED_ERROR [");
- nouveau_enum_print(nve0_fifo_sched_reason, code);
- pr_cont("]\n");
-}
-
-static void
-nve0_fifo_intr_chsw(struct nve0_fifo_priv *priv)
-{
- u32 stat = nv_rd32(priv, 0x00256c);
- nv_error(priv, "CHSW_ERROR 0x%08x\n", stat);
- nv_wr32(priv, 0x00256c, stat);
-}
-
-static void
-nve0_fifo_intr_dropped_fault(struct nve0_fifo_priv *priv)
-{
- u32 stat = nv_rd32(priv, 0x00259c);
- nv_error(priv, "DROPPED_MMU_FAULT 0x%08x\n", stat);
-}
-
-static void
nve0_fifo_intr_fault(struct nve0_fifo_priv *priv, int unit)
{
- u32 inst = nv_rd32(priv, 0x2800 + (unit * 0x10));
- u32 valo = nv_rd32(priv, 0x2804 + (unit * 0x10));
- u32 vahi = nv_rd32(priv, 0x2808 + (unit * 0x10));
- u32 stat = nv_rd32(priv, 0x280c + (unit * 0x10));
+ u32 inst = nv_rd32(priv, 0x002800 + (unit * 0x10));
+ u32 valo = nv_rd32(priv, 0x002804 + (unit * 0x10));
+ u32 vahi = nv_rd32(priv, 0x002808 + (unit * 0x10));
+ u32 stat = nv_rd32(priv, 0x00280c + (unit * 0x10));
+ u32 gpc = (stat & 0x1f000000) >> 24;
u32 client = (stat & 0x00001f00) >> 8;
- struct nouveau_engine *engine = NULL;
+ u32 write = (stat & 0x00000080);
+ u32 hub = (stat & 0x00000040);
+ u32 reason = (stat & 0x0000000f);
struct nouveau_object *engctx = NULL;
- const struct nouveau_enum *en;
- const char *name = "unknown";
-
- nv_error(priv, "PFIFO: %s fault at 0x%010llx [", (stat & 0x00000080) ?
- "write" : "read", (u64)vahi << 32 | valo);
- nouveau_enum_print(nve0_fifo_fault_reason, stat & 0x0000000f);
- pr_cont("] from ");
- en = nouveau_enum_print(nve0_fifo_fault_engine, unit);
- if (stat & 0x00000040) {
- pr_cont("/");
- nouveau_enum_print(nve0_fifo_fault_hubclient, client);
- } else {
- pr_cont("/GPC%d/", (stat & 0x1f000000) >> 24);
- nouveau_enum_print(nve0_fifo_fault_gpcclient, client);
- }
-
- if (en && en->data2) {
- if (en->data2 == NVDEV_SUBDEV_BAR) {
+ struct nouveau_engine *engine;
+ const struct nouveau_enum *er, *eu, *ec;
+ char erunk[6] = "";
+ char euunk[6] = "";
+ char ecunk[6] = "";
+ char gpcid[3] = "";
+
+ er = nouveau_enum_find(nve0_fifo_fault_reason, reason);
+ if (!er)
+ snprintf(erunk, sizeof(erunk), "UNK%02X", reason);
+
+ eu = nouveau_enum_find(nve0_fifo_fault_engine, unit);
+ if (eu) {
+ switch (eu->data2) {
+ case NVDEV_SUBDEV_BAR:
nv_mask(priv, 0x001704, 0x00000000, 0x00000000);
- name = "BAR1";
- } else
- if (en->data2 == NVDEV_SUBDEV_INSTMEM) {
+ break;
+ case NVDEV_SUBDEV_INSTMEM:
nv_mask(priv, 0x001714, 0x00000000, 0x00000000);
- name = "BAR3";
- } else {
- engine = nouveau_engine(priv, en->data2);
- if (engine) {
+ break;
+ case NVDEV_ENGINE_IFB:
+ nv_mask(priv, 0x001718, 0x00000000, 0x00000000);
+ break;
+ default:
+ engine = nouveau_engine(priv, eu->data2);
+ if (engine)
engctx = nouveau_engctx_get(engine, inst);
- name = nouveau_client_name(engctx);
- }
+ break;
}
+ } else {
+ snprintf(euunk, sizeof(euunk), "UNK%02x", unit);
+ }
+
+ if (hub) {
+ ec = nouveau_enum_find(nve0_fifo_fault_hubclient, client);
+ } else {
+ ec = nouveau_enum_find(nve0_fifo_fault_gpcclient, client);
+ snprintf(gpcid, sizeof(gpcid), "%d", gpc);
}
- pr_cont(" on channel 0x%010llx [%s]\n", (u64)inst << 12, name);
+
+ if (!ec)
+ snprintf(ecunk, sizeof(ecunk), "UNK%02x", client);
+
+ nv_error(priv, "%s fault at 0x%010llx [%s] from %s/%s%s%s%s on "
+ "channel 0x%010llx [%s]\n", write ? "write" : "read",
+ (u64)vahi << 32 | valo, er ? er->name : erunk,
+ eu ? eu->name : euunk, hub ? "" : "GPC", gpcid, hub ? "" : "/",
+ ec ? ec->name : ecunk, (u64)inst << 12,
+ nouveau_client_name(engctx));
nouveau_engctx_put(engctx);
}
@@ -716,16 +739,13 @@ nve0_fifo_intr(struct nouveau_subdev *subdev)
}
if (stat & 0x10000000) {
- u32 units = nv_rd32(priv, 0x00259c);
- u32 u = units;
-
- while (u) {
- int i = ffs(u) - 1;
- nve0_fifo_intr_fault(priv, i);
- u &= ~(1 << i);
+ u32 mask = nv_rd32(priv, 0x00259c);
+ while (mask) {
+ u32 unit = __ffs(mask);
+ nve0_fifo_intr_fault(priv, unit);
+ nv_wr32(priv, 0x00259c, (1 << unit));
+ mask &= ~(1 << unit);
}
-
- nv_wr32(priv, 0x00259c, units);
stat &= ~0x10000000;
}
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