diff options
author | Ben Skeggs <bskeggs@redhat.com> | 2013-10-17 09:56:02 +1000 |
---|---|---|
committer | Ben Skeggs <bskeggs@redhat.com> | 2013-11-08 15:40:18 +1000 |
commit | 9838366c1597dfd8fe5663ad02024adce2fa07fe (patch) | |
tree | 24109d1cd08d7af491facb62033fc62da1dbb0cf /drivers/gpu/drm/nouveau/core/engine/device | |
parent | 7c856522069755ab9d163a24ac332cd3cb35fe30 (diff) | |
download | op-kernel-dev-9838366c1597dfd8fe5663ad02024adce2fa07fe.zip op-kernel-dev-9838366c1597dfd8fe5663ad02024adce2fa07fe.tar.gz |
drm/nouveau/device: initial control object class, with pstate control methods
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/device')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/device/base.c | 5 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/device/ctrl.c | 144 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/device/priv.h | 8 |
3 files changed, 155 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/base.c b/drivers/gpu/drm/nouveau/core/engine/device/base.c index f775f43..9135b25a 100644 --- a/drivers/gpu/drm/nouveau/core/engine/device/base.c +++ b/drivers/gpu/drm/nouveau/core/engine/device/base.c @@ -29,7 +29,7 @@ #include <core/class.h> -#include <engine/device.h> +#include "priv.h" static DEFINE_MUTEX(nv_devices_mutex); static LIST_HEAD(nv_devices); @@ -121,7 +121,8 @@ nouveau_devobj_ctor(struct nouveau_object *parent, return -ENODEV; } - ret = nouveau_parent_create(parent, nv_object(device), oclass, 0, NULL, + ret = nouveau_parent_create(parent, nv_object(device), oclass, 0, + nouveau_control_oclass, (1ULL << NVDEV_ENGINE_DMAOBJ) | (1ULL << NVDEV_ENGINE_FIFO) | (1ULL << NVDEV_ENGINE_DISP) | diff --git a/drivers/gpu/drm/nouveau/core/engine/device/ctrl.c b/drivers/gpu/drm/nouveau/core/engine/device/ctrl.c new file mode 100644 index 0000000..4b69bf5 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/engine/device/ctrl.c @@ -0,0 +1,144 @@ +/* + * 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 <core/object.h> +#include <core/class.h> + +#include <subdev/clock.h> + +#include "priv.h" + +static int +nouveau_control_mthd_pstate_info(struct nouveau_object *object, u32 mthd, + void *data, u32 size) +{ + struct nouveau_clock *clk = nouveau_clock(object); + struct nv_control_pstate_info *args = data; + + if (size < sizeof(*args)) + return -EINVAL; + + if (clk) { + args->count = clk->state_nr; + args->ustate = clk->ustate; + args->pstate = clk->pstate; + } else { + args->count = 0; + args->ustate = NV_CONTROL_PSTATE_INFO_USTATE_DISABLE; + args->pstate = NV_CONTROL_PSTATE_INFO_PSTATE_UNKNOWN; + } + + return 0; +} + +static int +nouveau_control_mthd_pstate_attr(struct nouveau_object *object, u32 mthd, + void *data, u32 size) +{ + struct nouveau_clock *clk = nouveau_clock(object); + struct nv_control_pstate_attr *args = data; + struct nouveau_clocks *domain; + struct nouveau_pstate *pstate; + struct nouveau_cstate *cstate; + int i = 0, j = -1; + u32 lo, hi; + + if ((size < sizeof(*args)) || !clk || + (args->state >= 0 && args->state >= clk->state_nr)) + return -EINVAL; + domain = clk->domains; + + while (domain->name != nv_clk_src_max) { + if (domain->mname && ++j == args->index) + break; + domain++; + } + + if (domain->name == nv_clk_src_max) + return -EINVAL; + + if (args->state != NV_CONTROL_PSTATE_ATTR_STATE_CURRENT) { + list_for_each_entry(pstate, &clk->states, head) { + if (i++ == args->state) + break; + } + + lo = pstate->base.domain[domain->name]; + hi = lo; + list_for_each_entry(cstate, &pstate->list, head) { + lo = min(lo, cstate->domain[domain->name]); + hi = max(hi, cstate->domain[domain->name]); + } + + args->state = pstate->pstate; + } else { + lo = max(clk->read(clk, domain->name), 0); + hi = lo; + } + + snprintf(args->name, sizeof(args->name), "%s", domain->mname); + snprintf(args->unit, sizeof(args->unit), "MHz"); + args->min = lo / domain->mdiv; + args->max = hi / domain->mdiv; + + args->index = 0; + while ((++domain)->name != nv_clk_src_max) { + if (domain->mname) { + args->index = ++j; + break; + } + } + + return 0; +} + +static int +nouveau_control_mthd_pstate_user(struct nouveau_object *object, u32 mthd, + void *data, u32 size) +{ + struct nouveau_clock *clk = nouveau_clock(object); + struct nv_control_pstate_user *args = data; + + if (size < sizeof(*args) || !clk) + return -EINVAL; + + return nouveau_clock_ustate(clk, args->state); +} + +struct nouveau_oclass +nouveau_control_oclass[] = { + { .handle = NV_CONTROL_CLASS, + .ofuncs = &nouveau_object_ofuncs, + .omthds = (struct nouveau_omthds[]) { + { NV_CONTROL_PSTATE_INFO, + NV_CONTROL_PSTATE_INFO, nouveau_control_mthd_pstate_info }, + { NV_CONTROL_PSTATE_ATTR, + NV_CONTROL_PSTATE_ATTR, nouveau_control_mthd_pstate_attr }, + { NV_CONTROL_PSTATE_USER, + NV_CONTROL_PSTATE_USER, nouveau_control_mthd_pstate_user }, + {}, + }, + }, + {} +}; diff --git a/drivers/gpu/drm/nouveau/core/engine/device/priv.h b/drivers/gpu/drm/nouveau/core/engine/device/priv.h new file mode 100644 index 0000000..035fd5b --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/engine/device/priv.h @@ -0,0 +1,8 @@ +#ifndef __NVKM_DEVICE_PRIV_H__ +#define __NVKM_DEVICE_PRIV_H__ + +#include <engine/device.h> + +extern struct nouveau_oclass nouveau_control_oclass[]; + +#endif |