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drm/nouveau/sysfs: remove pstate interface 

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Karol Herbst 2015-07-30 11:56:20 +02:00 committed by Ben Skeggs
parent 6e9fc17739
commit fcc95ce90f
5 changed files with 0 additions and 225 deletions
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1
drivers/gpu/drm/nouveau/Kbuild
View File

@ -24,7 +24,6 @@ nouveau-y += nouveau_hwmon.o
nouveau-$(CONFIG_COMPAT) += nouveau_ioc32.o
nouveau-y += nouveau_nvif.o
nouveau-$(CONFIG_NOUVEAU_PLATFORM_DRIVER) += nouveau_platform.o
nouveau-y += nouveau_sysfs.o
nouveau-y += nouveau_usif.o # userspace <-> nvif
nouveau-y += nouveau_vga.o

4
drivers/gpu/drm/nouveau/nouveau_drm.c
View File

@ -47,7 +47,6 @@
#include "nouveau_ttm.h"
#include "nouveau_gem.h"
#include "nouveau_vga.h"
#include "nouveau_sysfs.h"
#include "nouveau_hwmon.h"
#include "nouveau_acpi.h"
#include "nouveau_bios.h"
@ -454,7 +453,6 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags)
}
nouveau_debugfs_init(drm);
nouveau_sysfs_init(dev);
nouveau_hwmon_init(dev);
nouveau_accel_init(drm);
nouveau_fbcon_init(dev);
@ -492,7 +490,6 @@ nouveau_drm_unload(struct drm_device *dev)
nouveau_fbcon_fini(dev);
nouveau_accel_fini(drm);
nouveau_hwmon_fini(dev);
nouveau_sysfs_fini(dev);
nouveau_debugfs_fini(drm);
if (dev->mode_config.num_crtc)
@ -1010,7 +1007,6 @@ static void nouveau_display_options(void)
DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset);
DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm);
DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
DRM_DEBUG_DRIVER("... pstate : %d\n", nouveau_pstate);
}
static const struct dev_pm_ops nouveau_pm_ops = {

1
drivers/gpu/drm/nouveau/nouveau_drm.h
View File

@ -164,7 +164,6 @@ struct nouveau_drm {
/* power management */
struct nouveau_hwmon *hwmon;
struct nouveau_sysfs *sysfs;
struct nouveau_debugfs *debugfs;
/* display power reference */

198
drivers/gpu/drm/nouveau/nouveau_sysfs.c
View File

@ -1,198 +0,0 @@
/*
* Copyright 2013 Red Hat Inc.
*
* 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: Ben Skeggs <bskeggs@redhat.com>
*/
#include <nvif/os.h>
#include <nvif/class.h>
#include <nvif/if0001.h>
#include <nvif/ioctl.h>
#include "nouveau_sysfs.h"
MODULE_PARM_DESC(pstate, "enable sysfs pstate file, which will be moved in the future");
int nouveau_pstate;
module_param_named(pstate, nouveau_pstate, int, 0400);
static inline struct drm_device *
drm_device(struct device *d)
{
return dev_get_drvdata(d);
}
#define snappendf(p,r,f,a...) do { \
snprintf(p, r, f, ##a); \
r -= strlen(p); \
p += strlen(p); \
} while(0)
static ssize_t
nouveau_sysfs_pstate_get(struct device *d, struct device_attribute *a, char *b)
{
struct nouveau_sysfs *sysfs = nouveau_sysfs(drm_device(d));
struct nvif_control_pstate_info_v0 info = {};
size_t cnt = PAGE_SIZE;
char *buf = b;
int ret, i;
ret = nvif_mthd(&sysfs->ctrl, NVIF_CONTROL_PSTATE_INFO,
&info, sizeof(info));
if (ret)
return ret;
for (i = 0; i < info.count + 1; i++) {
const s32 state = i < info.count ? i :
NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT;
struct nvif_control_pstate_attr_v0 attr = {
.state = state,
.index = 0,
};
ret = nvif_mthd(&sysfs->ctrl, NVIF_CONTROL_PSTATE_ATTR,
&attr, sizeof(attr));
if (ret)
return ret;
if (i < info.count)
snappendf(buf, cnt, "%02x:", attr.state);
else
snappendf(buf, cnt, "%s:", info.pwrsrc == 0 ? "DC" :
info.pwrsrc == 1 ? "AC" :
"--");
attr.index = 0;
do {
attr.state = state;
ret = nvif_mthd(&sysfs->ctrl,
NVIF_CONTROL_PSTATE_ATTR,
&attr, sizeof(attr));
if (ret)
return ret;
snappendf(buf, cnt, " %s %d", attr.name, attr.min);
if (attr.min != attr.max)
snappendf(buf, cnt, "-%d", attr.max);
snappendf(buf, cnt, " %s", attr.unit);
} while (attr.index);
if (state >= 0) {
if (info.ustate_ac == state)
snappendf(buf, cnt, " AC");
if (info.ustate_dc == state)
snappendf(buf, cnt, " DC");
if (info.pstate == state)
snappendf(buf, cnt, " *");
} else {
if (info.ustate_ac < -1)
snappendf(buf, cnt, " AC");
if (info.ustate_dc < -1)
snappendf(buf, cnt, " DC");
}
snappendf(buf, cnt, "\n");
}
return strlen(b);
}
static ssize_t
nouveau_sysfs_pstate_set(struct device *d, struct device_attribute *a,
const char *buf, size_t count)
{
struct nouveau_sysfs *sysfs = nouveau_sysfs(drm_device(d));
struct nvif_control_pstate_user_v0 args = { .pwrsrc = -EINVAL };
long value, ret;
char *tmp;
if ((tmp = strchr(buf, '\n')))
*tmp = '\0';
if (!strncasecmp(buf, "dc:", 3)) {
args.pwrsrc = 0;
buf += 3;
} else
if (!strncasecmp(buf, "ac:", 3)) {
args.pwrsrc = 1;
buf += 3;
}
if (!strcasecmp(buf, "none"))
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_UNKNOWN;
else
if (!strcasecmp(buf, "auto"))
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_PERFMON;
else {
ret = kstrtol(buf, 16, &value);
if (ret)
return ret;
args.ustate = value;
}
ret = nvif_mthd(&sysfs->ctrl, NVIF_CONTROL_PSTATE_USER,
&args, sizeof(args));
if (ret < 0)
return ret;
return count;
}
static DEVICE_ATTR(pstate, S_IRUGO | S_IWUSR,
nouveau_sysfs_pstate_get, nouveau_sysfs_pstate_set);
void
nouveau_sysfs_fini(struct drm_device *dev)
{
struct nouveau_sysfs *sysfs = nouveau_sysfs(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_device *device = &drm->device;
if (sysfs && sysfs->ctrl.priv) {
device_remove_file(nvxx_device(device)->dev, &dev_attr_pstate);
nvif_object_fini(&sysfs->ctrl);
}
drm->sysfs = NULL;
kfree(sysfs);
}
int
nouveau_sysfs_init(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_device *device = &drm->device;
struct nouveau_sysfs *sysfs;
int ret;
if (!nouveau_pstate)
return 0;
sysfs = drm->sysfs = kzalloc(sizeof(*sysfs), GFP_KERNEL);
if (!sysfs)
return -ENOMEM;
ret = nvif_object_init(&device->object, 0, NVIF_CLASS_CONTROL,
NULL, 0, &sysfs->ctrl);
if (ret == 0)
device_create_file(nvxx_device(device)->dev, &dev_attr_pstate);
return 0;
}

21
drivers/gpu/drm/nouveau/nouveau_sysfs.h
View File

@ -1,21 +0,0 @@
#ifndef __NOUVEAU_SYSFS_H__
#define __NOUVEAU_SYSFS_H__
#include "nouveau_drm.h"
struct nouveau_sysfs {
struct nvif_object ctrl;
};
static inline struct nouveau_sysfs *
nouveau_sysfs(struct drm_device *dev)
{
return nouveau_drm(dev)->sysfs;
}
int nouveau_sysfs_init(struct drm_device *);
void nouveau_sysfs_fini(struct drm_device *);
extern int nouveau_pstate;
#endif