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drm/nouveau/pm: implement NVIF_PERFMON_V0_QUERY_SOURCE method

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This allows to query the ID, the mask and the user-readable name of
sources for each signal.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Samuel Pitoiset 2015-06-07 22:40:24 +02:00 committed by Ben Skeggs
parent 50d138d752
commit 6f99c84873
2 changed files with 89 additions and 0 deletions
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12
drivers/gpu/drm/nouveau/include/nvif/class.h
View File

@ -253,6 +253,7 @@ struct gf110_dma_v0 {
#define NVIF_PERFMON_V0_QUERY_DOMAIN 0x00
#define NVIF_PERFMON_V0_QUERY_SIGNAL 0x01
#define NVIF_PERFMON_V0_QUERY_SOURCE 0x02
struct nvif_perfmon_query_domain_v0 {
__u8 version;
@ -273,6 +274,17 @@ struct nvif_perfmon_query_signal_v0 {
char name[64];
};
struct nvif_perfmon_query_source_v0 {
__u8 version;
__u8 domain;
__u8 signal;
__u8 iter;
__u8 pad04[4];
__u32 source;
__u32 mask;
char name[64];
};
/*******************************************************************************
* perfctr

77
drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
View File

@ -103,6 +103,31 @@ nvkm_perfsig_count_perfsrc(struct nvkm_perfsig *sig)
return source_nr;
}
static struct nvkm_perfsrc *
nvkm_perfsrc_find(struct nvkm_pm *ppm, struct nvkm_perfsig *sig, int si)
{
struct nvkm_perfsrc *src;
bool found = false;
int tmp = 1; /* Sources ID start from 1 */
u8 i;
for (i = 0; i < ARRAY_SIZE(sig->source) && sig->source[i]; i++) {
if (sig->source[i] == si) {
found = true;
break;
}
}
if (found) {
list_for_each_entry(src, &ppm->sources, head) {
if (tmp++ == si)
return src;
}
}
return NULL;
}
/*******************************************************************************
* Perfmon object classes
******************************************************************************/
@ -203,6 +228,56 @@ nvkm_perfmon_mthd_query_signal(struct nvkm_object *object, void *data, u32 size)
return 0;
}
static int
nvkm_perfmon_mthd_query_source(struct nvkm_object *object, void *data, u32 size)
{
union {
struct nvif_perfmon_query_source_v0 v0;
} *args = data;
struct nvkm_pm *ppm = (void *)object->engine;
struct nvkm_perfdom *dom = NULL;
struct nvkm_perfsig *sig;
struct nvkm_perfsrc *src;
u8 source_nr = 0;
int si, ret;
nv_ioctl(object, "perfmon query source size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nv_ioctl(object,
"perfmon source vers %d dom %d sig %02x iter %02x\n",
args->v0.version, args->v0.domain, args->v0.signal,
args->v0.iter);
si = (args->v0.iter & 0xff) - 1;
} else
return ret;
sig = nvkm_perfsig_find(ppm, args->v0.domain, args->v0.signal, &dom);
if (!sig)
return -EINVAL;
source_nr = nvkm_perfsig_count_perfsrc(sig);
if (si >= (int)source_nr)
return -EINVAL;
if (si >= 0) {
src = nvkm_perfsrc_find(ppm, sig, sig->source[si]);
if (!src)
return -EINVAL;
args->v0.source = sig->source[si];
args->v0.mask = src->mask;
strncpy(args->v0.name, src->name, sizeof(args->v0.name));
}
if (++si < source_nr) {
args->v0.iter = ++si;
return 0;
}
args->v0.iter = 0xff;
return 0;
}
static int
nvkm_perfmon_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
{
@ -211,6 +286,8 @@ nvkm_perfmon_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
return nvkm_perfmon_mthd_query_domain(object, data, size);
case NVIF_PERFMON_V0_QUERY_SIGNAL:
return nvkm_perfmon_mthd_query_signal(object, data, size);
case NVIF_PERFMON_V0_QUERY_SOURCE:
return nvkm_perfmon_mthd_query_source(object, data, size);
default:
break;
}