Signed-off-by: Karol Herbst <karolher...@gmail.com>
---
.../include/nvkm/subdev/bios/thermal_policies.h | 27 ++++++++
drm/nouveau/nvkm/subdev/bios/Kbuild | 1 +
drm/nouveau/nvkm/subdev/bios/thermal_policies.c | 81 ++++++++++++++++++++++
3 files changed, 109 insertions(+)
create mode 100644 drm/nouveau/include/nvkm/subdev/bios/thermal_policies.h
create mode 100644 drm/nouveau/nvkm/subdev/bios/thermal_policies.c
diff --git a/drm/nouveau/include/nvkm/subdev/bios/thermal_policies.h
b/drm/nouveau/include/nvkm/subdev/bios/thermal_policies.h
new file mode 100644
index 00000000..c9215fdd
--- /dev/null
+++ b/drm/nouveau/include/nvkm/subdev/bios/thermal_policies.h
@@ -0,0 +1,27 @@
+#ifndef __NVBIOS_THERMAL_POLICIES_H__
+#define __NVBIOS_THERMAL_POLICIES_H__
+
+struct nvbios_thermal_policies_header {
+ u32 offset;
+
+ u8 version;
+ u8 hlen;
+ u8 ecount;
+ u8 elen;
+};
+struct nvbios_thermal_policies_entry {
+ u8 mode;
+ u16 t0;
+ u16 t1;
+ u16 t2;
+ s16 down_offset;
+ s16 up_offset;
+};
+
+int nvbios_thermal_policies_parse(struct nvkm_bios *,
+ struct nvbios_thermal_policies_header *);
+int nvbios_thermal_policies_entry(struct nvkm_bios *,
+ struct nvbios_thermal_policies_header *,
+ u8 idx,
+ struct nvbios_thermal_policies_entry *);
+#endif
diff --git a/drm/nouveau/nvkm/subdev/bios/Kbuild
b/drm/nouveau/nvkm/subdev/bios/Kbuild
index 6b4f1e06..38f31dd0 100644
--- a/drm/nouveau/nvkm/subdev/bios/Kbuild
+++ b/drm/nouveau/nvkm/subdev/bios/Kbuild
@@ -30,6 +30,7 @@ nvkm-y += nvkm/subdev/bios/shadowramin.o
nvkm-y += nvkm/subdev/bios/shadowrom.o
nvkm-y += nvkm/subdev/bios/timing.o
nvkm-y += nvkm/subdev/bios/therm.o
+nvkm-y += nvkm/subdev/bios/thermal_policies.o
nvkm-y += nvkm/subdev/bios/vmap.o
nvkm-y += nvkm/subdev/bios/volt.o
nvkm-y += nvkm/subdev/bios/vpstate.o
diff --git a/drm/nouveau/nvkm/subdev/bios/thermal_policies.c
b/drm/nouveau/nvkm/subdev/bios/thermal_policies.c
new file mode 100644
index 00000000..5105194e
--- /dev/null
+++ b/drm/nouveau/nvkm/subdev/bios/thermal_policies.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2017 Karol Herbst
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Karol Herbst
+ */
+#include <subdev/bios.h>
+#include <subdev/bios/bit.h>
+#include <subdev/bios/thermal_policies.h>
+
+static u32
+nvbios_thermal_policies_offset(struct nvkm_bios *b)
+{
+ struct bit_entry bit_P;
+
+ if (!bit_entry(b, 'P', &bit_P)) {
+ if (bit_P.version == 2 && bit_P.length >= 0x50)
+ return nvbios_rd32(b, bit_P.offset + 0x50);
+ }
+
+ return 0;
+}
+
+int
+nvbios_thermal_policies_parse(struct nvkm_bios *b, struct
nvbios_thermal_policies_header *h)
+{
+ if (!h)
+ return -EINVAL;
+
+ h->offset = nvbios_thermal_policies_offset(b);
+ if (!h->offset)
+ return -ENODEV;
+
+ h->version = nvbios_rd08(b, h->offset);
+ switch (h->version) {
+ case 0x10:
+ h->hlen = nvbios_rd08(b, h->offset + 0x1);
+ h->elen = nvbios_rd08(b, h->offset + 0x2);
+ h->ecount = nvbios_rd08(b, h->offset + 0x3);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+int
+nvbios_thermal_policies_entry(struct nvkm_bios *b, struct
nvbios_thermal_policies_header *h,
+ u8 idx, struct nvbios_thermal_policies_entry *e)
+{
+ u32 offset;
+
+ if (!e || !h || idx > h->ecount)
+ return -EINVAL;
+
+ offset = h->offset + h->hlen + idx * h->elen;
+ e->mode = nvbios_rd08(b, offset);
+ e->t0 = nvbios_rd16(b, offset + 0x2);
+ e->t1 = nvbios_rd16(b, offset + 0x4);
+ e->t2 = nvbios_rd16(b, offset + 0x6);
+ e->down_offset = nvbios_rd16(b, offset + 0x12);
+ e->up_offset = nvbios_rd16(b, offset + 0x14);
+
+ return 0;
+}
--
2.14.1
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