/*
* Copyright 2010 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 "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_pm.h"
void
nouveau_perf_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct nvbios *bios = &dev_priv->vbios;
struct bit_entry P;
u8 version, headerlen, recordlen, entries;
u8 *perf, *entry;
int vid, i;
if (bios->type == NVBIOS_BIT) {
if (bit_table(dev, 'P', &P))
return;
if (P.version != 1 && P.version != 2) {
NV_WARN(dev, "unknown perf for BIT P %d\n", P.version);
return;
}
perf = ROMPTR(bios, P.data[0]);
version = perf[0];
headerlen = perf[1];
if (version < 0x40) {
recordlen = perf[3] + (perf[4] * perf[5]);
entries = perf[2];
} else {
recordlen = perf[2] + (perf[3] * perf[4]);
entries = perf[5];
}
} else {
if (bios->data[bios->offset + 6] < 0x27) {
NV_DEBUG(dev, "BMP version too old for perf\n");
return;
}
perf = ROMPTR(bios, bios->data[bios->offset + 0x94]);
if (!perf) {
NV_DEBUG(dev, "perf table pointer invalid\n");
return;
}
version = perf[1];
headerlen = perf[0];
recordlen = perf[3];
entries = perf[2];
}
entry = perf + headerlen;
for (i = 0; i < entries; i++) {
struct nouveau_pm_level *perflvl = &pm->perflvl[pm->nr_perflvl];
if (entry[0] == 0xff) {
entry += recordlen;
continue;
}
switch (version) {
case 0x12:
case 0x13:
case 0x15:
perflvl->fanspeed = entry[55];
perflvl->voltage = entry[56];
perflvl->core = ROM32(entry[1]) / 100;
perflvl->memory = ROM32(entry[5]) / 100;
break;
case 0x21:
case 0x23:
case 0x24:
perflvl->fanspeed = entry[4];
perflvl->voltage = entry[5];
perflvl->core = ROM16(entry[6]);
perflvl->memory = ROM16(entry[11]);
break;
case 0x25:
perflvl->fanspeed = entry[4];
perflvl->voltage = entry[5];
perflvl->core = ROM16(entry[6]);
perflvl->shader = ROM16(entry[10]);
perflvl->memory = ROM16(entry[12]);
break;
case 0x30:
case 0x35:
perflvl->fanspeed = entry[6];
perflvl->voltage = entry[7];
perflvl->core = ROM16(entry[8]);
perflvl->shader = ROM16(entry[10]);
perflvl->memory = ROM16(entry[12]);
/*XXX: confirm on 0x35 */
perflvl->unk05 = ROM16(entry[16]);
break;
case 0x40:
#define subent(n) entry[perf[2] + ((n) * perf[3])]
perflvl->fanspeed = 0; /*XXX*/
perflvl->voltage = 0; /*XXX: entry[2] */;
perflvl->core = ROM16(subent(0)) & 0xfff;
perflvl->shader = ROM16(subent(1)) & 0xfff;
perflvl->memory = ROM16(subent(2)) & 0xfff;
break;
}
/* convert MHz -> KHz, it's more convenient */
perflvl->core *= 1000;
perflvl->memory *= 1000;
perflvl->shader *= 1000;
perflvl->unk05 *= 1000;
/* make sure vid is valid */
if (pm->voltage.supported && perflvl->voltage) {
vid = nouveau_volt_vid_lookup(dev, perflvl->voltage);
if (vid < 0) {
NV_DEBUG(dev, "drop perflvl %d, bad vid\n", i);
entry += recordlen;
continue;
}
}
snprintf(perflvl->name, sizeof(perflvl->name),
"performance_level_%d", i);
perflvl->id = i;
pm->nr_perflvl++;
entry += recordlen;
}
}
void
nouveau_perf_fini(struct drm_device *dev)
{
}
