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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/*
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* Copyright 2015 Martin Peres
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Martin Peres
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*/
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#include "priv.h"
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#include <subdev/volt.h>
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#include <subdev/gpio.h>
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#include <subdev/bios.h>
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#include <subdev/bios/volt.h>
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#include <subdev/fuse.h>
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#define gk104_volt(p) container_of((p), struct gk104_volt, base)
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struct gk104_volt {
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struct nvkm_volt base;
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struct nvbios_volt bios;
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};
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static int
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gk104_volt_get(struct nvkm_volt *base)
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{
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struct nvbios_volt *bios = &gk104_volt(base)->bios;
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struct nvkm_device *device = base->subdev.device;
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u32 div, duty;
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div = nvkm_rd32(device, 0x20340);
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duty = nvkm_rd32(device, 0x20344);
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return bios->base + bios->pwm_range * duty / div;
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}
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static int
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gk104_volt_set(struct nvkm_volt *base, u32 uv)
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{
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struct nvbios_volt *bios = &gk104_volt(base)->bios;
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struct nvkm_device *device = base->subdev.device;
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u32 div, duty;
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/* the blob uses this crystal frequency, let's use it too. */
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div = 27648000 / bios->pwm_freq;
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duty = DIV_ROUND_UP((uv - bios->base) * div, bios->pwm_range);
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nvkm_wr32(device, 0x20340, div);
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nvkm_wr32(device, 0x20344, 0x80000000 | duty);
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return 0;
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}
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static int
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gk104_volt_speedo_read(struct nvkm_volt *volt)
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{
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struct nvkm_device *device = volt->subdev.device;
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struct nvkm_fuse *fuse = device->fuse;
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int ret;
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if (!fuse)
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return -EINVAL;
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nvkm_wr32(device, 0x122634, 0x0);
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ret = nvkm_fuse_read(fuse, 0x3a8);
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nvkm_wr32(device, 0x122634, 0x41);
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return ret;
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}
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static const struct nvkm_volt_func
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gk104_volt_pwm = {
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.oneinit = gf100_volt_oneinit,
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.volt_get = gk104_volt_get,
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.volt_set = gk104_volt_set,
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.speedo_read = gk104_volt_speedo_read,
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}, gk104_volt_gpio = {
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.oneinit = gf100_volt_oneinit,
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.vid_get = nvkm_voltgpio_get,
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.vid_set = nvkm_voltgpio_set,
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.speedo_read = gk104_volt_speedo_read,
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};
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int
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gk104_volt_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_volt **pvolt)
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{
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const struct nvkm_volt_func *volt_func = &gk104_volt_gpio;
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struct dcb_gpio_func gpio;
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struct nvbios_volt bios;
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struct gk104_volt *volt;
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u8 ver, hdr, cnt, len;
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const char *mode;
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if (!nvbios_volt_parse(device->bios, &ver, &hdr, &cnt, &len, &bios))
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return 0;
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if (!nvkm_gpio_find(device->gpio, 0, DCB_GPIO_VID_PWM, 0xff, &gpio) &&
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bios.type == NVBIOS_VOLT_PWM) {
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volt_func = &gk104_volt_pwm;
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}
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if (!(volt = kzalloc_obj(*volt)))
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return -ENOMEM;
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nvkm_volt_ctor(volt_func, device, type, inst, &volt->base);
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*pvolt = &volt->base;
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volt->bios = bios;
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/* now that we have a subdev, we can show an error if we found through
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* the voltage table that we were supposed to use the PWN mode but we
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* did not find the right GPIO for it.
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*/
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if (bios.type == NVBIOS_VOLT_PWM && volt_func != &gk104_volt_pwm) {
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nvkm_error(&volt->base.subdev,
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"Type mismatch between the voltage table type and "
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"the GPIO table. Fallback to GPIO mode.\n");
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}
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if (volt_func == &gk104_volt_gpio) {
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nvkm_voltgpio_init(&volt->base);
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mode = "GPIO";
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} else
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mode = "PWM";
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nvkm_debug(&volt->base.subdev, "Using %s mode\n", mode);
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return 0;
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}
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