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Subject[PATCH 4.19 098/110] drm/nouveau/volt/gf117: fix speedo readout register
Date
[ Upstream commit fc782242749fa4235592854fafe1a1297583c1fb ]

GF117 appears to use the same register as GK104 (but still with the
general Fermi readout mechanism).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108980
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../drm/nouveau/include/nvkm/subdev/volt.h | 1 +
.../gpu/drm/nouveau/nvkm/engine/device/base.c | 2 +-
.../gpu/drm/nouveau/nvkm/subdev/volt/Kbuild | 1 +
.../gpu/drm/nouveau/nvkm/subdev/volt/gf117.c | 60 +++++++++++++++++++
4 files changed, 63 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf117.c

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h
index 8a0f85f5fc1a..6a765682fbfa 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h
@@ -38,6 +38,7 @@ int nvkm_volt_set_id(struct nvkm_volt *, u8 id, u8 min_id, u8 temp,

int nv40_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
int gf100_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
+int gf117_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
int gk104_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
int gk20a_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
int gm20b_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
index e294013426ce..347a6a4cb339 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
@@ -1613,7 +1613,7 @@ nvd7_chipset = {
.pci = gf106_pci_new,
.therm = gf119_therm_new,
.timer = nv41_timer_new,
- .volt = gf100_volt_new,
+ .volt = gf117_volt_new,
.ce[0] = gf100_ce_new,
.disp = gf119_disp_new,
.dma = gf119_dma_new,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/Kbuild
index bcd179ba11d0..146adcdd316a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/Kbuild
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/Kbuild
@@ -2,6 +2,7 @@ nvkm-y += nvkm/subdev/volt/base.o
nvkm-y += nvkm/subdev/volt/gpio.o
nvkm-y += nvkm/subdev/volt/nv40.o
nvkm-y += nvkm/subdev/volt/gf100.o
+nvkm-y += nvkm/subdev/volt/gf117.o
nvkm-y += nvkm/subdev/volt/gk104.o
nvkm-y += nvkm/subdev/volt/gk20a.o
nvkm-y += nvkm/subdev/volt/gm20b.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf117.c b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf117.c
new file mode 100644
index 000000000000..547a58f0aeac
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gf117.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2019 Ilia Mirkin
+ *
+ * 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: Ilia Mirkin
+ */
+#include "priv.h"
+
+#include <subdev/fuse.h>
+
+static int
+gf117_volt_speedo_read(struct nvkm_volt *volt)
+{
+ struct nvkm_device *device = volt->subdev.device;
+ struct nvkm_fuse *fuse = device->fuse;
+
+ if (!fuse)
+ return -EINVAL;
+
+ return nvkm_fuse_read(fuse, 0x3a8);
+}
+
+static const struct nvkm_volt_func
+gf117_volt = {
+ .oneinit = gf100_volt_oneinit,
+ .vid_get = nvkm_voltgpio_get,
+ .vid_set = nvkm_voltgpio_set,
+ .speedo_read = gf117_volt_speedo_read,
+};
+
+int
+gf117_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
+{
+ struct nvkm_volt *volt;
+ int ret;
+
+ ret = nvkm_volt_new_(&gf117_volt, device, index, &volt);
+ *pvolt = volt;
+ if (ret)
+ return ret;
+
+ return nvkm_voltgpio_init(volt);
+}
--
2.19.1


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