From a03616950ebff49c2370e38c20c169d199ab0e2c Mon Sep 17 00:00:00 2001 From: Erik Gilling Date: Fri, 29 Oct 2010 17:59:33 -0700 Subject: [PATCH] [ARM] tegra: add API to set memory client priority Change-Id: Id9b157004f7364fb1f7aaffa925b710dcfb90e86 Signed-off-by: Erik Gilling --- arch/arm/mach-tegra/Makefile | 1 + arch/arm/mach-tegra/include/mach/mc.h | 100 ++++++++++++++++++++++++++ arch/arm/mach-tegra/mc.c | 42 +++++++++++ 3 files changed, 143 insertions(+) create mode 100644 arch/arm/mach-tegra/include/mach/mc.h create mode 100644 arch/arm/mach-tegra/mc.c diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index 686a897cd04f..cb2ad3b36582 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -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 diff --git a/arch/arm/mach-tegra/include/mach/mc.h b/arch/arm/mach-tegra/include/mach/mc.h new file mode 100644 index 000000000000..167081067f9e --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/mc.h @@ -0,0 +1,100 @@ +/* + * arch/arm/mach-tegra/include/mach/mc.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Erik Gilling + * + * 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 diff --git a/arch/arm/mach-tegra/mc.c b/arch/arm/mach-tegra/mc.c new file mode 100644 index 000000000000..513ac3f5cf4d --- /dev/null +++ b/arch/arm/mach-tegra/mc.c @@ -0,0 +1,42 @@ +/* + * arch/arm/mach-tegra/mc.c + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Erik Gilling + * + * 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 +#include + +#include +#include + +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); +} -- 2.34.1