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drm/nv50/disp: decode the known error codes to human readable form 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-02-21 11:06:40 +10:00
parent a8f8b4891d
commit 117e16335b
1 changed files with 40 additions and 17 deletions
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57
drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
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@ -26,6 +26,7 @@
#include <core/parent.h>
#include <core/handle.h>
#include <core/class.h>
#include <core/enum.h>
#include <subdev/bios.h>
#include <subdev/bios/dcb.h>
@ -780,25 +781,46 @@ nv50_disp_cclass = {
* Display engine implementation
******************************************************************************/
static const struct nouveau_enum
nv50_disp_intr_error_type[] = {
{ 3, "ILLEGAL_MTHD" },
{ 4, "INVALID_VALUE" },
{ 5, "INVALID_STATE" },
{ 7, "INVALID_HANDLE" },
{}
};
static const struct nouveau_enum
nv50_disp_intr_error_code[] = {
{ 0x00, "" },
{}
};
static void
nv50_disp_intr_error(struct nv50_disp_priv *priv)
nv50_disp_intr_error(struct nv50_disp_priv *priv, int chid)
{
u32 channels = (nv_rd32(priv, 0x610020) & 0x001f0000) >> 16;
u32 addr, data;
int chid;
u32 data = nv_rd32(priv, 0x610084 + (chid * 0x08));
u32 addr = nv_rd32(priv, 0x610080 + (chid * 0x08));
u32 code = (addr & 0x00ff0000) >> 16;
u32 type = (addr & 0x00007000) >> 12;
u32 mthd = (addr & 0x00000ffc);
const struct nouveau_enum *ec, *et;
char ecunk[6], etunk[6];
for (chid = 0; chid < 5; chid++) {
if (!(channels & (1 << chid)))
continue;
et = nouveau_enum_find(nv50_disp_intr_error_type, type);
if (!et)
snprintf(etunk, sizeof(etunk), "UNK%02X", type);
nv_wr32(priv, 0x610020, 0x00010000 << chid);
addr = nv_rd32(priv, 0x610080 + (chid * 0x08));
data = nv_rd32(priv, 0x610084 + (chid * 0x08));
nv_wr32(priv, 0x610080 + (chid * 0x08), 0x90000000);
ec = nouveau_enum_find(nv50_disp_intr_error_code, code);
if (!ec)
snprintf(ecunk, sizeof(ecunk), "UNK%02X", code);
nv_error(priv, "chid %d mthd 0x%04x data 0x%08x 0x%08x\n",
chid, addr & 0xffc, data, addr);
}
nv_error(priv, "%s [%s] chid %d mthd 0x%04x data 0x%08x\n",
et ? et->name : etunk, ec ? ec->name : ecunk,
chid, mthd, data);
nv_wr32(priv, 0x610020, 0x00010000 << chid);
nv_wr32(priv, 0x610080 + (chid * 0x08), 0x90000000);
}
static u16
@ -1288,9 +1310,10 @@ nv50_disp_intr(struct nouveau_subdev *subdev)
u32 intr0 = nv_rd32(priv, 0x610020);
u32 intr1 = nv_rd32(priv, 0x610024);
if (intr0 & 0x001f0000) {
nv50_disp_intr_error(priv);
intr0 &= ~0x001f0000;
while (intr0 & 0x001f0000) {
u32 chid = __ffs(intr0 & 0x001f0000) - 16;
nv50_disp_intr_error(priv, chid);
intr0 &= ~(0x00010000 << chid);
}
if (intr1 & 0x00000004) {