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[ARM] tegra: add API to set memory client priority

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Change-Id: Id9b157004f7364fb1f7aaffa925b710dcfb90e86
Signed-off-by: Erik Gilling <konkers@android.com>
This commit is contained in:
Erik Gilling
2010-10-29 17:59:33 -07:00
parent 913a6a0a1c
commit a03616950e
3 changed files with 143 additions and 0 deletions
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1
arch/arm/mach-tegra/Makefile
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@@ -12,6 +12,7 @@ obj-y += powergate.o
obj-y += suspend.o
obj-y += fuse.o
obj-y += tegra_i2s_audio.o
obj-y += mc.o
obj-$(CONFIG_USB_SUPPORT) += usb_phy.o
obj-$(CONFIG_FIQ) += fiq.o
obj-$(CONFIG_TEGRA_PWM) += pwm.o

100
arch/arm/mach-tegra/include/mach/mc.h Normal file
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@@ -0,0 +1,100 @@
/*
* arch/arm/mach-tegra/include/mach/mc.h
*
* Copyright (C) 2010 Google, Inc.
*
* Author:
* Erik Gilling <konkers@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#ifndef __MACH_TEGRA_MC_H
#define __MACH_TEGRA_MC_H
#define TEGRA_MC_FPRI_CTRL_AVPC 0x17c
#define TEGRA_MC_FPRI_CTRL_DC 0x180
#define TEGRA_MC_FPRI_CTRL_DCB 0x184
#define TEGRA_MC_FPRI_CTRL_EPP 0x188
#define TEGRA_MC_FPRI_CTRL_G2 0x18c
#define TEGRA_MC_FPRI_CTRL_HC 0x190
#define TEGRA_MC_FPRI_CTRL_ISP 0x194
#define TEGRA_MC_FPRI_CTRL_MPCORE 0x198
#define TEGRA_MC_FPRI_CTRL_MPEA 0x19c
#define TEGRA_MC_FPRI_CTRL_MPEB 0x1a0
#define TEGRA_MC_FPRI_CTRL_MPEC 0x1a4
#define TEGRA_MC_FPRI_CTRL_NV 0x1a8
#define TEGRA_MC_FPRI_CTRL_PPCS 0x1ac
#define TEGRA_MC_FPRI_CTRL_VDE 0x1b0
#define TEGRA_MC_FPRI_CTRL_VI 0x1b4
#define TEGRA_MC_CLIENT_AVPCARM7R ((TEGRA_MC_FPRI_CTRL_AVPC << 8) | 0)
#define TEGRA_MC_CLIENT_AVPCARM7W ((TEGRA_MC_FPRI_CTRL_AVPC << 8) | 2)
#define TEGRA_MC_CLIENT_DISPLAY0A ((TEGRA_MC_FPRI_CTRL_DC << 8) | 0)
#define TEGRA_MC_CLIENT_DISPLAY0B ((TEGRA_MC_FPRI_CTRL_DC << 8) | 2)
#define TEGRA_MC_CLIENT_DISPLAY0C ((TEGRA_MC_FPRI_CTRL_DC << 8) | 4)
#define TEGRA_MC_CLIENT_DISPLAY1B ((TEGRA_MC_FPRI_CTRL_DC << 8) | 6)
#define TEGRA_MC_CLIENT_DISPLAYHC ((TEGRA_MC_FPRI_CTRL_DC << 8) | 8)
#define TEGRA_MC_CLIENT_DISPLAY0AB ((TEGRA_MC_FPRI_CTRL_DCB << 8) | 0)
#define TEGRA_MC_CLIENT_DISPLAY0BB ((TEGRA_MC_FPRI_CTRL_DCB << 8) | 2)
#define TEGRA_MC_CLIENT_DISPLAY0CB ((TEGRA_MC_FPRI_CTRL_DCB << 8) | 4)
#define TEGRA_MC_CLIENT_DISPLAY1BB ((TEGRA_MC_FPRI_CTRL_DCB << 8) | 6)
#define TEGRA_MC_CLIENT_DISPLAYHCB ((TEGRA_MC_FPRI_CTRL_DCB << 8) | 8)
#define TEGRA_MC_CLIENT_EPPUP ((TEGRA_MC_FPRI_CTRL_EPP << 8) | 0)
#define TEGRA_MC_CLIENT_EPPU ((TEGRA_MC_FPRI_CTRL_EPP << 8) | 2)
#define TEGRA_MC_CLIENT_EPPV ((TEGRA_MC_FPRI_CTRL_EPP << 8) | 4)
#define TEGRA_MC_CLIENT_EPPY ((TEGRA_MC_FPRI_CTRL_EPP << 8) | 6)
#define TEGRA_MC_CLIENT_G2PR ((TEGRA_MC_FPRI_CTRL_G2 << 8) | 0)
#define TEGRA_MC_CLIENT_G2SR ((TEGRA_MC_FPRI_CTRL_G2 << 8) | 2)
#define TEGRA_MC_CLIENT_G2DR ((TEGRA_MC_FPRI_CTRL_G2 << 8) | 4)
#define TEGRA_MC_CLIENT_G2DW ((TEGRA_MC_FPRI_CTRL_G2 << 8) | 6)
#define TEGRA_MC_CLIENT_HOST1XDMAR ((TEGRA_MC_FPRI_CTRL_HC << 8) | 0)
#define TEGRA_MC_CLIENT_HOST1XR ((TEGRA_MC_FPRI_CTRL_HC << 8) | 2)
#define TEGRA_MC_CLIENT_HOST1XW ((TEGRA_MC_FPRI_CTRL_HC << 8) | 4)
#define TEGRA_MC_CLIENT_ISPW ((TEGRA_MC_FPRI_CTRL_ISP << 8) | 0)
#define TEGRA_MC_CLIENT_MPCORER ((TEGRA_MC_FPRI_CTRL_MPCORE << 8) | 0)
#define TEGRA_MC_CLIENT_MPCOREW ((TEGRA_MC_FPRI_CTRL_MPCORE << 8) | 2)
#define TEGRA_MC_CLIENT_MPEAMEMRD ((TEGRA_MC_FPRI_CTRL_MPEA << 8) | 0)
#define TEGRA_MC_CLIENT_MPEUNIFBR ((TEGRA_MC_FPRI_CTRL_MPEB << 8) | 0)
#define TEGRA_MC_CLIENT_MPE_IPRED ((TEGRA_MC_FPRI_CTRL_MPEB << 8) | 2)
#define TEGRA_MC_CLIENT_MPEUNIFBW ((TEGRA_MC_FPRI_CTRL_MPEB << 8) | 4)
#define TEGRA_MC_CLIENT_MPECSRD ((TEGRA_MC_FPRI_CTRL_MPEC << 8) | 0)
#define TEGRA_MC_CLIENT_MPECSWR ((TEGRA_MC_FPRI_CTRL_MPEC << 8) | 2)
#define TEGRA_MC_CLIENT_FDCDRD ((TEGRA_MC_FPRI_CTRL_NV << 8) | 0)
#define TEGRA_MC_CLIENT_IDXSRD ((TEGRA_MC_FPRI_CTRL_NV << 8) | 2)
#define TEGRA_MC_CLIENT_TEXSRD ((TEGRA_MC_FPRI_CTRL_NV << 8) | 4)
#define TEGRA_MC_CLIENT_FDCDWR ((TEGRA_MC_FPRI_CTRL_NV << 8) | 6)
#define TEGRA_MC_CLIENT_PPCSAHBDMAR ((TEGRA_MC_FPRI_CTRL_PPCS << 8) | 0)
#define TEGRA_MC_CLIENT_PPCSAHBSLVR ((TEGRA_MC_FPRI_CTRL_PPCS << 8) | 2)
#define TEGRA_MC_CLIENT_PPCSAHBDMAW ((TEGRA_MC_FPRI_CTRL_PPCS << 8) | 4)
#define TEGRA_MC_CLIENT_PPCSAHBSLVW ((TEGRA_MC_FPRI_CTRL_PPCS << 8) | 6)
#define TEGRA_MC_CLIENT_VDEBSEVR ((TEGRA_MC_FPRI_CTRL_VDE << 8) | 0)
#define TEGRA_MC_CLIENT_VDEMBER ((TEGRA_MC_FPRI_CTRL_VDE << 8) | 2)
#define TEGRA_MC_CLIENT_VDEMCER ((TEGRA_MC_FPRI_CTRL_VDE << 8) | 4)
#define TEGRA_MC_CLIENT_VDETPER ((TEGRA_MC_FPRI_CTRL_VDE << 8) | 6)
#define TEGRA_MC_CLIENT_VDEBSEVW ((TEGRA_MC_FPRI_CTRL_VDE << 8) | 8)
#define TEGRA_MC_CLIENT_VDEMBEW ((TEGRA_MC_FPRI_CTRL_VDE << 8) | 10)
#define TEGRA_MC_CLIENT_VDETPMW ((TEGRA_MC_FPRI_CTRL_VDE << 8) | 12)
#define TEGRA_MC_CLIENT_VIRUV ((TEGRA_MC_FPRI_CTRL_VI << 8) | 0)
#define TEGRA_MC_CLIENT_VIWSB ((TEGRA_MC_FPRI_CTRL_VI << 8) | 2)
#define TEGRA_MC_CLIENT_VIWU ((TEGRA_MC_FPRI_CTRL_VI << 8) | 4)
#define TEGRA_MC_CLIENT_VIWV ((TEGRA_MC_FPRI_CTRL_VI << 8) | 6)
#define TEGRA_MC_CLIENT_VIWY ((TEGRA_MC_FPRI_CTRL_VI << 8) | 8)
#define TEGRA_MC_PRIO_LOWEST 0
#define TEGRA_MC_PRIO_LOW 1
#define TEGRA_MC_PRIO_MED 2
#define TEGRA_MC_PRIO_HIGH 3
#define TEGRA_MC_PRIO_MASK 3
void tegra_mc_set_priority(unsigned long client, unsigned long prio);
#endif

42
arch/arm/mach-tegra/mc.c Normal file
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@@ -0,0 +1,42 @@
/*
* arch/arm/mach-tegra/mc.c
*
* Copyright (C) 2010 Google, Inc.
*
* Author:
* Erik Gilling <konkers@google.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#include <linux/io.h>
#include <linux/spinlock.h>
#include <mach/iomap.h>
#include <mach/mc.h>
static DEFINE_SPINLOCK(tegra_mc_lock);
void tegra_mc_set_priority(unsigned long client, unsigned long prio)
{
unsigned long mc_base = IO_TO_VIRT(TEGRA_MC_BASE);
unsigned long reg = client >> 8;
int field = client & 0xff;
unsigned long val;
unsigned long flags;
spin_lock_irqsave(&tegra_mc_lock, flags);
val = readl(mc_base + reg);
val &= ~(TEGRA_MC_PRIO_MASK << field);
val |= prio << field;
writel(val, mc_base + reg);
spin_unlock_irqrestore(&tegra_mc_lock, flags);
}