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

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h
index 3c2ddd9..b7a9b04 100644 (file)
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h
+++ b/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 **);

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c
index f0af2a3..fecfa6a 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c
+++ b/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;