From fcc95ce90fdd00b48252fe971ae1ea950bc63562 Mon Sep 17 00:00:00 2001 From: Karol Herbst Date: Thu, 30 Jul 2015 11:56:20 +0200 Subject: [PATCH] drm/nouveau/sysfs: remove pstate interface Signed-off-by: Karol Herbst Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/Kbuild | 1 - drivers/gpu/drm/nouveau/nouveau_drm.c | 4 - drivers/gpu/drm/nouveau/nouveau_drm.h | 1 - drivers/gpu/drm/nouveau/nouveau_sysfs.c | 198 ------------------------ drivers/gpu/drm/nouveau/nouveau_sysfs.h | 21 --- 5 files changed, 225 deletions(-) delete mode 100644 drivers/gpu/drm/nouveau/nouveau_sysfs.c delete mode 100644 drivers/gpu/drm/nouveau/nouveau_sysfs.h diff --git a/drivers/gpu/drm/nouveau/Kbuild b/drivers/gpu/drm/nouveau/Kbuild index a34b437dbc8f..2527bf4ca5d9 100644 --- a/drivers/gpu/drm/nouveau/Kbuild +++ b/drivers/gpu/drm/nouveau/Kbuild @@ -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 diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 7d336a42da02..2f2f252e3fb6 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -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 = { diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h index feecb90e5c3e..5c363ed1c842 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.h +++ b/drivers/gpu/drm/nouveau/nouveau_drm.h @@ -164,7 +164,6 @@ struct nouveau_drm { /* power management */ struct nouveau_hwmon *hwmon; - struct nouveau_sysfs *sysfs; struct nouveau_debugfs *debugfs; /* display power reference */ diff --git a/drivers/gpu/drm/nouveau/nouveau_sysfs.c b/drivers/gpu/drm/nouveau/nouveau_sysfs.c deleted file mode 100644 index c013ee4f0d3a..000000000000 --- a/drivers/gpu/drm/nouveau/nouveau_sysfs.c +++ /dev/null @@ -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 - */ - -#include -#include -#include -#include - -#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; -} diff --git a/drivers/gpu/drm/nouveau/nouveau_sysfs.h b/drivers/gpu/drm/nouveau/nouveau_sysfs.h deleted file mode 100644 index 4e5ea9241b28..000000000000 --- a/drivers/gpu/drm/nouveau/nouveau_sysfs.h +++ /dev/null @@ -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 -- 2.20.1