[Nouveau] [RFC PATCH] drm/nouveau/therm: initial implementation of new gp1xx temperature sensor
Karol Herbst
karolherbst at gmail.com
Thu Aug 31 08:23:22 UTC 2017
On Thu, Aug 31, 2017 at 4:55 AM, Rhys Kidd <rhyskidd at gmail.com> wrote:
> Signed-off-by: Rhys Kidd <rhyskidd at gmail.com>
> ---
> .../gpu/drm/nouveau/include/nvkm/subdev/therm.h | 1 +
> drivers/gpu/drm/nouveau/nvkm/engine/device/base.c | 6 +++
> drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild | 1 +
> drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c | 3 +-
> drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c | 57 ++++++++++++++++++++++
> 5 files changed, 67 insertions(+), 1 deletion(-)
> create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c
>
> diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
> index b268b96faece..adf14731ea15 100644
> --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
> +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
> @@ -96,4 +96,5 @@ int g84_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
> int gt215_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
> int gf119_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
> int gm107_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
> +int gp100_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
> #endif
> diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
> index 7bdc7a5ae723..a6221b0996bf 100644
> --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
> +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
> @@ -2166,6 +2166,7 @@ nv130_chipset = {
> .ltc = gp100_ltc_new,
> .mc = gp100_mc_new,
> .mmu = gf100_mmu_new,
> + .therm = gp100_therm_new,
> .secboot = gm200_secboot_new,
> .pci = gp100_pci_new,
> .pmu = gp100_pmu_new,
> @@ -2200,6 +2201,7 @@ nv132_chipset = {
> .ltc = gp100_ltc_new,
> .mc = gp100_mc_new,
> .mmu = gf100_mmu_new,
> + .therm = gp100_therm_new,
> .secboot = gp102_secboot_new,
> .pci = gp100_pci_new,
> .pmu = gp102_pmu_new,
> @@ -2234,6 +2236,7 @@ nv134_chipset = {
> .ltc = gp100_ltc_new,
> .mc = gp100_mc_new,
> .mmu = gf100_mmu_new,
> + .therm = gp100_therm_new,
> .secboot = gp102_secboot_new,
> .pci = gp100_pci_new,
> .pmu = gp102_pmu_new,
> @@ -2268,6 +2271,7 @@ nv136_chipset = {
> .ltc = gp100_ltc_new,
> .mc = gp100_mc_new,
> .mmu = gf100_mmu_new,
> + .therm = gp100_therm_new,
> .secboot = gp102_secboot_new,
> .pci = gp100_pci_new,
> .pmu = gp102_pmu_new,
> @@ -2302,6 +2306,7 @@ nv137_chipset = {
> .ltc = gp100_ltc_new,
> .mc = gp100_mc_new,
> .mmu = gf100_mmu_new,
> + .therm = gp100_therm_new,
> .secboot = gp102_secboot_new,
> .pci = gp100_pci_new,
> .pmu = gp102_pmu_new,
> @@ -2332,6 +2337,7 @@ nv13b_chipset = {
> .ltc = gp100_ltc_new,
> .mc = gp10b_mc_new,
> .mmu = gf100_mmu_new,
> + .therm = gp100_therm_new,
> .secboot = gp10b_secboot_new,
> .pmu = gm20b_pmu_new,
> .timer = gk20a_timer_new,
> diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild
> index 135758ba3e28..3ef1b396a946 100644
> --- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild
> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/Kbuild
> @@ -11,3 +11,4 @@ nvkm-y += nvkm/subdev/therm/g84.o
> nvkm-y += nvkm/subdev/therm/gt215.o
> nvkm-y += nvkm/subdev/therm/gf119.o
> nvkm-y += nvkm/subdev/therm/gm107.o
> +nvkm-y += nvkm/subdev/therm/gp100.o
> diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
> index 952a7cb0a59a..f27fc6d0d4c6 100644
> --- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
> @@ -341,7 +341,8 @@ nvkm_therm_init(struct nvkm_subdev *subdev)
> {
> struct nvkm_therm *therm = nvkm_therm(subdev);
>
> - therm->func->init(therm);
> + if (therm->func->init)
> + therm->func->init(therm);
>
> if (therm->suspend >= 0) {
> /* restore the pwm value only when on manual or auto mode */
> diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c
> new file mode 100644
> index 000000000000..b83d4af8c8bb
> --- /dev/null
> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gp100.c
> @@ -0,0 +1,57 @@
> +/*
> + * Copyright 2017 Rhys Kidd
> + *
> + * 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: Rhys Kidd
> + */
> +#include "priv.h"
> +
> +static int
> +gp100_temp_get(struct nvkm_therm *therm)
> +{
> + struct nvkm_device *device = therm->subdev.device;
> + struct nvkm_subdev *subdev = &therm->subdev;
> + u32 tsensor = nvkm_rd32(device, 0x20460);
> + u32 status = (tsensor & 0x60000000) >> 29;
> + u32 t_f24_8 = (tsensor & 0x0001fff8);
please use a better variable name than "t_f24_8"
> +
> + /* device SHADOWed */
> + if (status & 0x00000002)
> + nvkm_error(subdev, "Reading temperature from SHADOWed sensor\n");
> +
> + /* device valid */
> + if (status & 0x00000001)
> + return t_f24_8 / 256;
> + else
> + return -ENODEV;
> +}
> +
> +static const struct nvkm_therm_func
> +gp100_therm = {
> + .temp_get = gp100_temp_get,
> + .program_alarms = nvkm_therm_program_alarms_polling,
> +};
> +
> +int
> +gp100_therm_new(struct nvkm_device *device, int index,
> + struct nvkm_therm **ptherm)
> +{
> + return nvkm_therm_new_(&gp100_therm, device, index, ptherm);
> +}
> \ No newline at end of file
> --
> 2.11.0
>
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