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drm/nouveau/iccsense: Parse max and crit power level

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Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Karol Herbst 2017-01-23 23:10:12 +01:00 committed by Ben Skeggs
parent e5f8eabc00
commit 1efc3c4b9f
2 changed files with 21 additions and 2 deletions
drivers/gpu/drm/nouveau
include/nvkm/subdev
iccsense.h
nvkm/subdev/iccsense
base.c

3
drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h

@ -8,6 +8,9 @@ struct nvkm_iccsense {
bool data_valid;
struct list_head sensors;
struct list_head rails;
u32 power_w_max;
u32 power_w_crit;
};
int gf100_iccsense_new(struct nvkm_device *, int index, struct nvkm_iccsense **);

20
drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c

@ -26,6 +26,7 @@
#include <subdev/bios.h>
#include <subdev/bios/extdev.h>
#include <subdev/bios/iccsense.h>
#include <subdev/bios/power_budget.h>
#include <subdev/i2c.h>
static bool
@ -216,10 +217,25 @@ nvkm_iccsense_oneinit(struct nvkm_subdev *subdev)
{
struct nvkm_iccsense *iccsense = nvkm_iccsense(subdev);
struct nvkm_bios *bios = subdev->device->bios;
struct nvbios_power_budget budget;
struct nvbios_iccsense stbl;
int i;
int i, ret;
if (!bios || nvbios_iccsense_parse(bios, &stbl) || !stbl.nr_entry)
if (!bios)
return 0;
ret = nvbios_power_budget_header(bios, &budget);
if (!ret && budget.cap_entry != 0xff) {
struct nvbios_power_budget_entry entry;
ret = nvbios_power_budget_entry(bios, &budget,
budget.cap_entry, &entry);
if (!ret) {
iccsense->power_w_max = entry.avg_w;
iccsense->power_w_crit = entry.max_w;
}
}
if (nvbios_iccsense_parse(bios, &stbl) || !stbl.nr_entry)
return 0;
iccsense->data_valid = true;