382 lines
9.6 KiB
C
382 lines
9.6 KiB
C
/****************************************************************************
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2014 - 2019 Vivante Corporation
|
|
*
|
|
* 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
|
|
* AUTHORS OR COPYRIGHT HOLDERS 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.
|
|
*
|
|
*****************************************************************************
|
|
*
|
|
* The GPL License (GPL)
|
|
*
|
|
* Copyright (C) 2014 - 2019 Vivante Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*****************************************************************************
|
|
*
|
|
* Note: This software is released under dual MIT and GPL licenses. A
|
|
* recipient may use this file under the terms of either the MIT license or
|
|
* GPL License. If you wish to use only one license not the other, you can
|
|
* indicate your decision by deleting one of the above license notices in your
|
|
* version of this file.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
|
|
#include "gc_hal_kernel_precomp.h"
|
|
|
|
#define _GC_OBJ_ZONE gcvZONE_POWER
|
|
|
|
/******************************************************************************\
|
|
************************ Dynamic Voltage Frequency Setting *********************
|
|
\******************************************************************************/
|
|
#if gcdDVFS
|
|
static gctUINT32
|
|
_GetLoadHistory(
|
|
IN gckDVFS Dvfs,
|
|
IN gctUINT32 Select,
|
|
IN gctUINT32 Index
|
|
)
|
|
{
|
|
return Dvfs->loads[Index];
|
|
}
|
|
|
|
static void
|
|
_IncreaseScale(
|
|
IN gckDVFS Dvfs,
|
|
IN gctUINT32 Load,
|
|
OUT gctUINT8 *Scale
|
|
)
|
|
{
|
|
if (Dvfs->currentScale < 32)
|
|
{
|
|
*Scale = Dvfs->currentScale + 8;
|
|
}
|
|
else
|
|
{
|
|
*Scale = Dvfs->currentScale + 8;
|
|
*Scale = gcmMIN(64, *Scale);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_RecordFrequencyHistory(
|
|
gckDVFS Dvfs,
|
|
gctUINT32 Frequency
|
|
)
|
|
{
|
|
gctUINT32 i = 0;
|
|
|
|
struct _FrequencyHistory *history = Dvfs->frequencyHistory;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
if (history->frequency == Frequency)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (history->frequency == 0)
|
|
{
|
|
history->frequency = Frequency;
|
|
break;
|
|
}
|
|
|
|
history++;
|
|
}
|
|
|
|
if (i < 16)
|
|
{
|
|
history->count++;
|
|
}
|
|
}
|
|
|
|
static gctUINT32
|
|
_GetFrequencyHistory(
|
|
gckDVFS Dvfs,
|
|
gctUINT32 Frequency
|
|
)
|
|
{
|
|
gctUINT32 i = 0;
|
|
|
|
struct _FrequencyHistory * history = Dvfs->frequencyHistory;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
if (history->frequency == Frequency)
|
|
{
|
|
break;
|
|
}
|
|
|
|
history++;
|
|
}
|
|
|
|
if (i < 16)
|
|
{
|
|
return history->count;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
_Policy(
|
|
IN gckDVFS Dvfs,
|
|
IN gctUINT32 Load,
|
|
OUT gctUINT8 *Scale
|
|
)
|
|
{
|
|
gctUINT8 load[4], nextLoad;
|
|
gctUINT8 scale;
|
|
|
|
/* Last 4 history. */
|
|
load[0] = (Load & 0xFF);
|
|
load[1] = (Load & 0xFF00) >> 8;
|
|
load[2] = (Load & 0xFF0000) >> 16;
|
|
load[3] = (Load & 0xFF000000) >> 24;
|
|
|
|
/* Determine target scale. */
|
|
if (load[0] > 54)
|
|
{
|
|
_IncreaseScale(Dvfs, Load, &scale);
|
|
}
|
|
else
|
|
{
|
|
nextLoad = (load[0] + load[1] + load[2] + load[3])/4;
|
|
|
|
scale = Dvfs->currentScale * (nextLoad) / 54;
|
|
|
|
scale = gcmMAX(1, scale);
|
|
scale = gcmMIN(64, scale);
|
|
}
|
|
|
|
Dvfs->totalConfig++;
|
|
|
|
Dvfs->loads[(load[0]-1)/8]++;
|
|
|
|
*Scale = scale;
|
|
|
|
|
|
if (Dvfs->totalConfig % 100 == 0)
|
|
{
|
|
gcmkPRINT("=======================================================");
|
|
gcmkPRINT("GPU Load: %-8d %-8d %-8d %-8d %-8d %-8d %-8d %-8d",
|
|
8, 16, 24, 32, 40, 48, 56, 64);
|
|
gcmkPRINT(" %-8d %-8d %-8d %-8d %-8d %-8d %-8d %-8d",
|
|
_GetLoadHistory(Dvfs,2, 0),
|
|
_GetLoadHistory(Dvfs,2, 1),
|
|
_GetLoadHistory(Dvfs,2, 2),
|
|
_GetLoadHistory(Dvfs,2, 3),
|
|
_GetLoadHistory(Dvfs,2, 4),
|
|
_GetLoadHistory(Dvfs,2, 5),
|
|
_GetLoadHistory(Dvfs,2, 6),
|
|
_GetLoadHistory(Dvfs,2, 7)
|
|
);
|
|
|
|
gcmkPRINT("Frequency(MHz) %-8d %-8d %-8d %-8d %-8d",
|
|
58, 120, 240, 360, 480);
|
|
gcmkPRINT(" %-8d %-8d %-8d %-8d %-8d",
|
|
_GetFrequencyHistory(Dvfs, 58),
|
|
_GetFrequencyHistory(Dvfs,120),
|
|
_GetFrequencyHistory(Dvfs,240),
|
|
_GetFrequencyHistory(Dvfs,360),
|
|
_GetFrequencyHistory(Dvfs,480)
|
|
);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_TimerFunction(
|
|
gctPOINTER Data
|
|
)
|
|
{
|
|
gceSTATUS status;
|
|
gckDVFS dvfs = (gckDVFS) Data;
|
|
gckHARDWARE hardware = dvfs->hardware;
|
|
gctUINT32 value;
|
|
gctUINT32 frequency;
|
|
gctUINT8 scale;
|
|
gctUINT32 t1, t2, consumed;
|
|
|
|
gckOS_GetTicks(&t1);
|
|
|
|
gcmkONERROR(gckHARDWARE_QueryLoad(hardware, &value));
|
|
|
|
/* determine target sacle. */
|
|
_Policy(dvfs, value, &scale);
|
|
|
|
/* Set frequency and voltage. */
|
|
gcmkONERROR(gckOS_SetGPUFrequency(hardware->os, hardware->core, scale));
|
|
|
|
/* Query real frequency. */
|
|
gcmkONERROR(
|
|
gckOS_QueryGPUFrequency(hardware->os,
|
|
hardware->core,
|
|
&frequency,
|
|
&dvfs->currentScale));
|
|
|
|
_RecordFrequencyHistory(dvfs, frequency);
|
|
|
|
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_POWER,
|
|
"Current frequency = %d",
|
|
frequency);
|
|
|
|
/* Set period. */
|
|
gcmkONERROR(gckHARDWARE_SetDVFSPeroid(hardware, frequency));
|
|
|
|
OnError:
|
|
/* Determine next querying time. */
|
|
gckOS_GetTicks(&t2);
|
|
|
|
consumed = gcmMIN(((long)t2 - (long)t1), 5);
|
|
|
|
if (dvfs->stop == gcvFALSE)
|
|
{
|
|
gcmkVERIFY_OK(gckOS_StartTimer(hardware->os,
|
|
dvfs->timer,
|
|
dvfs->pollingTime - consumed));
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
gceSTATUS
|
|
gckDVFS_Construct(
|
|
IN gckHARDWARE Hardware,
|
|
OUT gckDVFS * Dvfs
|
|
)
|
|
{
|
|
gceSTATUS status;
|
|
gctPOINTER pointer;
|
|
gckDVFS dvfs = gcvNULL;
|
|
gckOS os = Hardware->os;
|
|
|
|
gcmkHEADER_ARG("Hardware=0x%X", Hardware);
|
|
|
|
gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
|
|
gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
|
|
|
|
/* Allocate a gckDVFS manager. */
|
|
gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(struct _gckDVFS), &pointer));
|
|
|
|
gckOS_ZeroMemory(pointer, gcmSIZEOF(struct _gckDVFS));
|
|
|
|
dvfs = pointer;
|
|
|
|
/* Initialization. */
|
|
dvfs->hardware = Hardware;
|
|
dvfs->pollingTime = gcdDVFS_POLLING_TIME;
|
|
dvfs->os = Hardware->os;
|
|
dvfs->currentScale = 64;
|
|
|
|
/* Create a polling timer. */
|
|
gcmkONERROR(gckOS_CreateTimer(os, _TimerFunction, pointer, &dvfs->timer));
|
|
|
|
/* Initialize frequency and voltage adjustment helper. */
|
|
gcmkONERROR(gckOS_PrepareGPUFrequency(os, Hardware->core));
|
|
|
|
/* Return result. */
|
|
*Dvfs = dvfs;
|
|
|
|
gcmkFOOTER_NO();
|
|
return gcvSTATUS_OK;
|
|
|
|
OnError:
|
|
/* Roll back. */
|
|
if (dvfs)
|
|
{
|
|
if (dvfs->timer)
|
|
{
|
|
gcmkVERIFY_OK(gckOS_DestroyTimer(os, dvfs->timer));
|
|
}
|
|
|
|
gcmkOS_SAFE_FREE(os, dvfs);
|
|
}
|
|
|
|
gcmkFOOTER();
|
|
return status;
|
|
}
|
|
|
|
gceSTATUS
|
|
gckDVFS_Destroy(
|
|
IN gckDVFS Dvfs
|
|
)
|
|
{
|
|
gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
|
|
gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
|
|
|
|
/* Deinitialize helper fuunction. */
|
|
gcmkVERIFY_OK(gckOS_FinishGPUFrequency(Dvfs->os, Dvfs->hardware->core));
|
|
|
|
/* DestroyTimer. */
|
|
gcmkVERIFY_OK(gckOS_DestroyTimer(Dvfs->os, Dvfs->timer));
|
|
|
|
gcmkOS_SAFE_FREE(Dvfs->os, Dvfs);
|
|
|
|
gcmkFOOTER_NO();
|
|
return gcvSTATUS_OK;
|
|
}
|
|
|
|
gceSTATUS
|
|
gckDVFS_Start(
|
|
IN gckDVFS Dvfs
|
|
)
|
|
{
|
|
gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
|
|
gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
|
|
|
|
gckHARDWARE_InitDVFS(Dvfs->hardware);
|
|
|
|
Dvfs->stop = gcvFALSE;
|
|
|
|
gckOS_StartTimer(Dvfs->os, Dvfs->timer, Dvfs->pollingTime);
|
|
|
|
gcmkFOOTER_NO();
|
|
return gcvSTATUS_OK;
|
|
}
|
|
|
|
gceSTATUS
|
|
gckDVFS_Stop(
|
|
IN gckDVFS Dvfs
|
|
)
|
|
{
|
|
gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
|
|
gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
|
|
|
|
Dvfs->stop = gcvTRUE;
|
|
|
|
gcmkFOOTER_NO();
|
|
return gcvSTATUS_OK;
|
|
}
|
|
#endif
|