提交 9838366c 编写于 作者: B Ben Skeggs

drm/nouveau/device: initial control object class, with pstate control methods

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
上级 7c856522
......@@ -187,6 +187,7 @@ nouveau-y += core/engine/copy/nve0.o
nouveau-y += core/engine/crypt/nv84.o
nouveau-y += core/engine/crypt/nv98.o
nouveau-y += core/engine/device/base.o
nouveau-y += core/engine/device/ctrl.o
nouveau-y += core/engine/device/nv04.o
nouveau-y += core/engine/device/nv10.o
nouveau-y += core/engine/device/nv20.o
......
......@@ -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) |
......
/*
* 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 },
{},
},
},
{}
};
#ifndef __NVKM_DEVICE_PRIV_H__
#define __NVKM_DEVICE_PRIV_H__
#include <engine/device.h>
extern struct nouveau_oclass nouveau_control_oclass[];
#endif
......@@ -129,6 +129,46 @@ struct nv_perfctr_read {
u32 clk;
};
/* Device control class
*
* XXXX: NV_CONTROL
*/
#define NV_CONTROL_CLASS 0x0000fffe
#define NV_CONTROL_PSTATE_INFO 0x00000000
#define NV_CONTROL_PSTATE_INFO_USTATE_DISABLE (-1)
#define NV_CONTROL_PSTATE_INFO_USTATE_PERFMON (-2)
#define NV_CONTROL_PSTATE_INFO_PSTATE_UNKNOWN (-1)
#define NV_CONTROL_PSTATE_INFO_PSTATE_PERFMON (-2)
#define NV_CONTROL_PSTATE_ATTR 0x00000001
#define NV_CONTROL_PSTATE_ATTR_STATE_CURRENT (-1)
#define NV_CONTROL_PSTATE_USER 0x00000002
#define NV_CONTROL_PSTATE_USER_STATE_UNKNOWN (-1)
#define NV_CONTROL_PSTATE_USER_STATE_PERFMON (-2)
struct nv_control_pstate_info {
u32 count; /* out: number of power states */
s32 ustate; /* out: current target pstate index */
u32 pstate; /* out: current pstate index */
};
struct nv_control_pstate_attr {
s32 state; /* in: index of pstate to query
* out: pstate identifier
*/
u32 index; /* in: index of attribute to query
* out: index of next attribute, or 0 if no more
*/
char name[32];
char unit[16];
u32 min;
u32 max;
};
struct nv_control_pstate_user {
s32 state; /* in: pstate identifier */
};
/* DMA FIFO channel classes
*
* 006b: NV03_CHANNEL_DMA
......
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