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drm/nouveau/pm: allow to query the number of sources for a 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 22:40:23 +02:00 committed by Ben Skeggs
parent e82661e23c
commit 50d138d752
2 changed files with 21 additions and 4 deletions
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3
drivers/gpu/drm/nouveau/include/nvif/class.h
View File

@ -268,7 +268,8 @@ struct nvif_perfmon_query_signal_v0 {
__u8 domain;
__u16 iter;
__u8 signal;
__u8 pad04[3];
__u8 source_nr;
__u8 pad05[2];
char name[64];
};

22
drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
View File

@ -91,6 +91,18 @@ nvkm_perfsig_find(struct nvkm_pm *ppm, uint8_t di, uint8_t si,
return &dom->signal[si];
}
static u8
nvkm_perfsig_count_perfsrc(struct nvkm_perfsig *sig)
{
u8 source_nr = 0, i;
for (i = 0; i < ARRAY_SIZE(sig->source); i++) {
if (sig->source[i])
source_nr++;
}
return source_nr;
}
/*******************************************************************************
* Perfmon object classes
******************************************************************************/
@ -148,9 +160,9 @@ nvkm_perfmon_mthd_query_signal(struct nvkm_object *object, void *data, u32 size)
struct nvkm_device *device = nv_device(object);
struct nvkm_pm *ppm = (void *)object->engine;
struct nvkm_perfdom *dom;
struct nvkm_perfsig *sig;
const bool all = nvkm_boolopt(device->cfgopt, "NvPmShowAll", false);
const bool raw = nvkm_boolopt(device->cfgopt, "NvPmUnnamed", all);
const char *name;
int ret, si;
nv_ioctl(object, "perfmon query signal size %d\n", size);
@ -167,13 +179,17 @@ nvkm_perfmon_mthd_query_signal(struct nvkm_object *object, void *data, u32 size)
return -EINVAL;
if (si >= 0) {
if (raw || !(name = dom->signal[si].name)) {
sig = &dom->signal[si];
if (raw || !sig->name) {
snprintf(args->v0.name, sizeof(args->v0.name),
"/%s/%02x", dom->name, si);
} else {
strncpy(args->v0.name, name, sizeof(args->v0.name));
strncpy(args->v0.name, sig->name,
sizeof(args->v0.name));
}
args->v0.signal = si;
args->v0.source_nr = nvkm_perfsig_count_perfsrc(sig);
}
while (++si < dom->signal_nr) {