[ARM] Merge AT91 and devel branches

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/Kconfig

@@ -740,7 +740,7 @@ config XIP_PHYS_ADDR
 
 endmenu
 
-if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP)
+if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX )
 
 menu "CPU Frequency scaling"
 
@@ -767,6 +767,15 @@ config CPU_FREQ_INTEGRATOR
 
 	  If in doubt, say Y.
 
+config CPU_FREQ_IMX
+	tristate "CPUfreq driver for i.MX CPUs"
+	depends on ARCH_IMX && CPU_FREQ
+	default n
+	help
+	  This enables the CPUfreq driver for i.MX CPUs.
+
+	  If in doubt, say N.
+
 endmenu
 
 endif
@@ -945,6 +954,8 @@ source "drivers/video/Kconfig"
 
 source "sound/Kconfig"
 
+source "drivers/hid/Kconfig"
+
 source "drivers/usb/Kconfig"
 
 source "drivers/mmc/Kconfig"

arch/arm/kernel/calls.S

@@ -331,6 +331,19 @@
 		CALL(sys_mbind)
 /* 320 */	CALL(sys_get_mempolicy)
 		CALL(sys_set_mempolicy)
+		CALL(sys_openat)
+		CALL(sys_mkdirat)
+		CALL(sys_mknodat)
+/* 325 */	CALL(sys_fchownat)
+		CALL(sys_futimesat)
+		CALL(sys_fstatat64)
+		CALL(sys_unlinkat)
+		CALL(sys_renameat)
+/* 330 */	CALL(sys_linkat)
+		CALL(sys_symlinkat)
+		CALL(sys_readlinkat)
+		CALL(sys_fchmodat)
+		CALL(sys_faccessat)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted

arch/arm/kernel/head.S

@@ -22,30 +22,31 @@
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
-#define KERNEL_RAM_ADDR	(PAGE_OFFSET + TEXT_OFFSET)
+#define KERNEL_RAM_VADDR	(PAGE_OFFSET + TEXT_OFFSET)
+#define KERNEL_RAM_PADDR	(PHYS_OFFSET + TEXT_OFFSET)
 
 /*
  * swapper_pg_dir is the virtual address of the initial page table.
- * We place the page tables 16K below KERNEL_RAM_ADDR.  Therefore, we must
- * make sure that KERNEL_RAM_ADDR is correctly set.  Currently, we expect
+ * We place the page tables 16K below KERNEL_RAM_VADDR.  Therefore, we must
+ * make sure that KERNEL_RAM_VADDR is correctly set.  Currently, we expect
  * the least significant 16 bits to be 0x8000, but we could probably
- * relax this restriction to KERNEL_RAM_ADDR >= PAGE_OFFSET + 0x4000.
+ * relax this restriction to KERNEL_RAM_VADDR >= PAGE_OFFSET + 0x4000.
  */
-#if (KERNEL_RAM_ADDR & 0xffff) != 0x8000
-#error KERNEL_RAM_ADDR must start at 0xXXXX8000
+#if (KERNEL_RAM_VADDR & 0xffff) != 0x8000
+#error KERNEL_RAM_VADDR must start at 0xXXXX8000
 #endif
 
 	.globl	swapper_pg_dir
-	.equ	swapper_pg_dir, KERNEL_RAM_ADDR - 0x4000
+	.equ	swapper_pg_dir, KERNEL_RAM_VADDR - 0x4000
 
 	.macro	pgtbl, rd
-	ldr	\rd, =(__virt_to_phys(KERNEL_RAM_ADDR - 0x4000))
+	ldr	\rd, =(KERNEL_RAM_PADDR - 0x4000)
 	.endm
 
 #ifdef CONFIG_XIP_KERNEL
 #define TEXTADDR  XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR)
 #else
-#define TEXTADDR  KERNEL_RAM_ADDR
+#define TEXTADDR  KERNEL_RAM_VADDR
 #endif
 
 /*

arch/arm/kernel/setup.c

@@ -354,9 +354,6 @@ static void __init setup_processor(void)
 #ifndef CONFIG_ARM_THUMB
 	elf_hwcap &= ~HWCAP_THUMB;
 #endif
-#ifndef CONFIG_VFP
-	elf_hwcap &= ~HWCAP_VFP;
-#endif
 
 	cpu_proc_init();
 }

arch/arm/mach-at91rm9200/at91sam9260_devices.c

@@ -18,6 +18,7 @@
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91sam9260.h>
 #include <asm/arch/at91sam926x_mc.h>
+#include <asm/arch/at91sam9260_matrix.h>
 
 #include "generic.h"
 

arch/arm/mach-at91rm9200/board-sam9260ek.c

@@ -119,6 +119,7 @@ static struct spi_board_info ek_spi_devices[] = {
  * MACB Ethernet device
  */
 static struct __initdata eth_platform_data ek_macb_data = {
+	.phy_irq_pin	= AT91_PIN_PA7,
 	.is_rmii	= 1,
 };
 

arch/arm/mach-imx/Makefile

@@ -9,6 +9,8 @@
 
 obj-y			+= irq.o time.o dma.o generic.o
 
+obj-$(CONFIG_CPU_FREQ_IMX)	+= cpufreq.o
+
 # Specific board support
 obj-$(CONFIG_ARCH_MX1ADS) += mx1ads.o
 

arch/arm/mach-imx/cpufreq.c

+/*
+ * cpu.c: clock scaling for the iMX
+ *
+ * Copyright (C) 2000 2001, The Delft University of Technology
+ * Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
+ * Copyright (C) 2006 Inky Lung <ilung@cwlinux.com>
+ * Copyright (C) 2006 Pavel Pisa, PiKRON <ppisa@pikron.com>
+ *
+ * Based on SA1100 version written by:
+ * - Johan Pouwelse (J.A.Pouwelse@its.tudelft.nl): initial version
+ * - Erik Mouw (J.A.K.Mouw@its.tudelft.nl):
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+/*#define DEBUG*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/cpufreq.h>
+#include <asm/system.h>
+
+#include <asm/hardware.h>
+
+#include "generic.h"
+
+#ifndef __val2mfld
+#define __val2mfld(mask,val) (((mask)&~((mask)<<1))*(val)&(mask))
+#endif
+#ifndef __mfld2val
+#define __mfld2val(mask,val) (((val)&(mask))/((mask)&~((mask)<<1)))
+#endif
+
+#define CR_920T_CLOCK_MODE	0xC0000000
+#define CR_920T_FASTBUS_MODE	0x00000000
+#define CR_920T_ASYNC_MODE	0xC0000000
+
+static u32 mpctl0_at_boot;
+
+static void imx_set_async_mode(void)
+{
+	adjust_cr(CR_920T_CLOCK_MODE, CR_920T_ASYNC_MODE);
+}
+
+static void imx_set_fastbus_mode(void)
+{
+	adjust_cr(CR_920T_CLOCK_MODE, CR_920T_FASTBUS_MODE);
+}
+
+static void imx_set_mpctl0(u32 mpctl0)
+{
+	unsigned long flags;
+
+	if (mpctl0 == 0) {
+		local_irq_save(flags);
+		CSCR &= ~CSCR_MPEN;
+		local_irq_restore(flags);
+		return;
+	}
+
+	local_irq_save(flags);
+	MPCTL0 = mpctl0;
+	CSCR |= CSCR_MPEN;
+	local_irq_restore(flags);
+}
+
+/**
+ * imx_compute_mpctl - compute new PLL parameters
+ * @new_mpctl:	pointer to location assigned by new PLL control register value
+ * @cur_mpctl:	current PLL control register parameters
+ * @freq:	required frequency in Hz
+ * @relation:	is one of %CPUFREQ_RELATION_L (supremum)
+ *		and %CPUFREQ_RELATION_H (infimum)
+ */
+long imx_compute_mpctl(u32 *new_mpctl, u32 cur_mpctl, unsigned long freq, int relation)
+{
+        u32 f_ref = (CSCR & CSCR_SYSTEM_SEL) ? 16000000 : (CLK32 * 512);
+        u32 mfi;
+        u32 mfn;
+        u32 mfd;
+        u32 pd;
+	unsigned long long ll;
+	long l;
+	long quot;
+
+	/* Fdppl=2*Fref*(MFI+MFN/(MFD+1))/(PD+1) */
+	/*  PD=<0,15>, MFD=<1,1023>, MFI=<5,15> MFN=<0,1022> */
+
+	if (cur_mpctl) {
+		mfd = ((cur_mpctl >> 16) & 0x3ff) + 1;
+		pd =  ((cur_mpctl >> 26) & 0xf) + 1;
+	} else {
+		pd=2; mfd=313;
+	}
+
+	/* pd=2; mfd=313; mfi=8; mfn=183; */
+	/* (MFI+MFN/(MFD)) = Fdppl / (2*Fref) * (PD); */
+
+	quot = (f_ref + (1 << 9)) >> 10;
+	l = (freq * pd + quot) / (2 * quot);
+	mfi = l >> 10;
+	mfn = ((l & ((1 << 10) - 1)) * mfd + (1 << 9)) >> 10;
+
+	mfd -= 1;
+	pd -= 1;
+
+	*new_mpctl = ((mfi & 0xf) << 10) | (mfn & 0x3ff) | ((mfd & 0x3ff) << 16)
+		| ((pd & 0xf) << 26);
+
+	ll = 2 * (unsigned long long)f_ref * ( (mfi<<16) + (mfn<<16) / (mfd+1) );
+	quot = (pd+1) * (1<<16);
+	ll += quot / 2;
+	do_div(ll, quot);
+	freq = ll;
+
+	pr_debug(KERN_DEBUG "imx: new PLL parameters pd=%d mfd=%d mfi=%d mfn=%d, freq=%ld\n",
+		pd, mfd, mfi, mfn, freq);
+
+	return freq;
+}
+
+
+static int imx_verify_speed(struct cpufreq_policy *policy)
+{
+	if (policy->cpu != 0)
+		return -EINVAL;
+
+	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
+
+	return 0;
+}
+
+static unsigned int imx_get_speed(unsigned int cpu)
+{
+	unsigned int freq;
+	unsigned int cr;
+	unsigned int cscr;
+	unsigned int bclk_div;
+
+	if (cpu)
+		return 0;
+
+	cscr = CSCR;
+	bclk_div = __mfld2val(CSCR_BCLK_DIV, cscr) + 1;
+	cr = get_cr();
+
+	if((cr & CR_920T_CLOCK_MODE) == CR_920T_FASTBUS_MODE) {
+		freq = imx_get_system_clk();
+		freq = (freq + bclk_div/2) / bclk_div;
+	} else {
+		freq = imx_get_mcu_clk();
+		if (cscr & CSCR_MPU_PRESC)
+			freq /= 2;
+	}
+
+	freq = (freq + 500) / 1000;
+
+	return freq;
+}
+
+static int imx_set_target(struct cpufreq_policy *policy,
+			  unsigned int target_freq,
+			  unsigned int relation)
+{
+	struct cpufreq_freqs freqs;
+	u32 mpctl0 = 0;
+	u32 cscr;
+	unsigned long flags;
+	long freq;
+	long sysclk;
+	unsigned int bclk_div = 1;
+
+	freq = target_freq * 1000;
+
+	pr_debug(KERN_DEBUG "imx: requested frequency %ld Hz, mpctl0 at boot 0x%08x\n",
+			freq, mpctl0_at_boot);
+
+	sysclk = imx_get_system_clk();
+
+	if (freq > sysclk + 1000000) {
+		freq = imx_compute_mpctl(&mpctl0, mpctl0_at_boot, freq, relation);
+		if (freq < 0) {
+			printk(KERN_WARNING "imx: target frequency %ld Hz cannot be set\n", freq);
+			return -EINVAL;
+		}
+	} else {
+		if(freq + 1000 < sysclk) {
+			if (relation == CPUFREQ_RELATION_L)
+				bclk_div = (sysclk - 1000) / freq;
+			else
+				bclk_div = (sysclk + freq + 1000) / freq;
+
+			if(bclk_div > 16)
+				bclk_div = 16;
+		}
+		freq = (sysclk + bclk_div / 2) / bclk_div;
+	}
+
+	freqs.old = imx_get_speed(0);
+	freqs.new = (freq + 500) / 1000;
+	freqs.cpu = 0;
+	freqs.flags = 0;
+
+	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+
+	local_irq_save(flags);
+
+	imx_set_fastbus_mode();
+
+	imx_set_mpctl0(mpctl0);
+
+	cscr = CSCR;
+	cscr &= ~CSCR_BCLK_DIV;
+	cscr |= __val2mfld(CSCR_BCLK_DIV, bclk_div - 1);
+	CSCR = cscr;
+
+	if(mpctl0) {
+		CSCR |= CSCR_MPLL_RESTART;
+
+		/* Wait until MPLL is stablized */
+		while( CSCR & CSCR_MPLL_RESTART );
+
+		imx_set_async_mode();
+	}
+
+	local_irq_restore(flags);
+
+	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
+	pr_debug(KERN_INFO "imx: set frequency %ld Hz, running from %s\n",
+			freq, mpctl0? "MPLL": "SPLL");
+
+	return 0;
+}
+
+static int __init imx_cpufreq_driver_init(struct cpufreq_policy *policy)
+{
+	printk(KERN_INFO "i.MX cpu freq change driver v1.0\n");
+
+	if (policy->cpu != 0)
+		return -EINVAL;
+
+	policy->cur = policy->min = policy->max = imx_get_speed(0);
+	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
+	policy->cpuinfo.min_freq = 8000;
+	policy->cpuinfo.max_freq = 200000;
+	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+	return 0;
+}
+
+static struct cpufreq_driver imx_driver = {
+	.flags		= CPUFREQ_STICKY,
+	.verify		= imx_verify_speed,
+	.target		= imx_set_target,
+	.get		= imx_get_speed,
+	.init		= imx_cpufreq_driver_init,
+	.name		= "imx",
+};
+
+static int __init imx_cpufreq_init(void)
+{
+
+	mpctl0_at_boot = 0;
+
+	if((CSCR & CSCR_MPEN) &&
+	   ((get_cr() & CR_920T_CLOCK_MODE) != CR_920T_FASTBUS_MODE))
+		mpctl0_at_boot = MPCTL0;
+
+	return cpufreq_register_driver(&imx_driver);
+}
+
+arch_initcall(imx_cpufreq_init);
+

arch/arm/mach-netx/time.c

@@ -19,21 +19,14 @@
 
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/clocksource.h>
 
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/mach/time.h>
 #include <asm/arch/netx-regs.h>
 
-/*
- * Returns number of us since last clock interrupt.  Note that interrupts
- * will have been disabled by do_gettimeoffset()
- */
-static unsigned long netx_gettimeoffset(void)
-{
-	return readl(NETX_GPIO_COUNTER_CURRENT(0)) / 100;
-}
-
 /*
  * IRQ handler for the timer
  */
@@ -43,6 +36,7 @@ netx_timer_interrupt(int irq, void *dev_id)
 	write_seqlock(&xtime_lock);
 
 	timer_tick();
+
 	write_sequnlock(&xtime_lock);
 
 	/* acknowledge interrupt */
@@ -51,13 +45,26 @@ netx_timer_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-
 static struct irqaction netx_timer_irq = {
 	.name           = "NetX Timer Tick",
 	.flags          = IRQF_DISABLED | IRQF_TIMER,
 	.handler        = netx_timer_interrupt,
 };
 
+cycle_t netx_get_cycles(void)
+{
+	return readl(NETX_GPIO_COUNTER_CURRENT(1));
+}
+
+static struct clocksource clocksource_netx = {
+	.name 		= "netx_timer",
+	.rating		= 200,
+	.read		= netx_get_cycles,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.shift 		= 20,
+	.is_continuous 	= 1,
+};
+
 /*
  * Set up timer interrupt
  */
@@ -80,9 +87,20 @@ static void __init netx_timer_init(void)
 		NETX_GPIO_COUNTER_CTRL(0));
 
 	setup_irq(NETX_IRQ_TIMER0, &netx_timer_irq);
+
+	/* Setup timer one for clocksource */
+        writel(0, NETX_GPIO_COUNTER_CTRL(1));
+        writel(0, NETX_GPIO_COUNTER_CURRENT(1));
+        writel(0xFFFFFFFF, NETX_GPIO_COUNTER_MAX(1));
+
+        writel(NETX_GPIO_COUNTER_CTRL_RUN,
+                NETX_GPIO_COUNTER_CTRL(1));
+
+	clocksource_netx.mult =
+		clocksource_hz2mult(CLOCK_TICK_RATE, clocksource_netx.shift);
+	clocksource_register(&clocksource_netx);
 }
 
 struct sys_timer netx_timer = {
-	.init           = netx_timer_init,
-	.offset         = netx_gettimeoffset,
+	.init		= netx_timer_init,
 };

arch/arm/mach-pxa/time.c

@@ -18,6 +18,7 @@
 #include <linux/signal.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/clocksource.h>
 
 #include <asm/system.h>
 #include <asm/hardware.h>
@@ -48,27 +49,6 @@ static int pxa_set_rtc(void)
 	return 0;
 }
 
-/* IRQs are disabled before entering here from do_gettimeofday() */
-static unsigned long pxa_gettimeoffset (void)
-{
-	long ticks_to_match, elapsed, usec;
-
-	/* Get ticks before next timer match */
-	ticks_to_match = OSMR0 - OSCR;
-
-	/* We need elapsed ticks since last match */
-	elapsed = LATCH - ticks_to_match;
-
-	/* don't get fooled by the workaround in pxa_timer_interrupt() */
-	if (elapsed <= 0)
-		return 0;
-
-	/* Now convert them to usec */
-	usec = (unsigned long)(elapsed * (tick_nsec / 1000))/LATCH;
-
-	return usec;
-}
-
 #ifdef CONFIG_NO_IDLE_HZ
 static unsigned long initial_match;
 static int match_posponed;
@@ -121,6 +101,20 @@ static struct irqaction pxa_timer_irq = {
 	.handler	= pxa_timer_interrupt,
 };
 
+cycle_t pxa_get_cycles(void)
+{
+	return OSCR;
+}
+
+static struct clocksource clocksource_pxa = {
+	.name           = "pxa_timer",
+	.rating         = 200,
+	.read           = pxa_get_cycles,
+	.mask           = CLOCKSOURCE_MASK(32),
+	.shift          = 20,
+	.is_continuous  = 1,
+};
+
 static void __init pxa_timer_init(void)
 {
 	struct timespec tv;
@@ -139,6 +133,14 @@ static void __init pxa_timer_init(void)
 	OIER = OIER_E0;		/* enable match on timer 0 to cause interrupts */
 	OSMR0 = OSCR + LATCH;	/* set initial match */
 	local_irq_restore(flags);
+
+	/* on PXA OSCR runs continiously and is not written to, so we can use it
+	 * as clock source directly.
+	 */
+	clocksource_pxa.mult =
+		clocksource_hz2mult(CLOCK_TICK_RATE, clocksource_pxa.shift);
+	clocksource_register(&clocksource_pxa);
+
 }
 
 #ifdef CONFIG_NO_IDLE_HZ
@@ -211,7 +213,6 @@ struct sys_timer pxa_timer = {
 	.init		= pxa_timer_init,
 	.suspend	= pxa_timer_suspend,
 	.resume		= pxa_timer_resume,
-	.offset		= pxa_gettimeoffset,
 #ifdef CONFIG_NO_IDLE_HZ
 	.dyn_tick	= &pxa_dyn_tick,
 #endif

arch/arm/mach-pxa/trizeps4.c

@@ -393,10 +393,6 @@ static struct pxafb_mach_info sharp_lcd = {
     .pxafb_backlight_power = board_backlight_power,
 };
 
-static void __init trizeps4_fixup(struct machine_desc *desc, struct tag *tags, char **cmdline, struct meminfo *mi)
-{
-}
-
 static void __init trizeps4_init(void)
 {
 	platform_add_devices(trizeps4_devices, ARRAY_SIZE(trizeps4_devices));
@@ -469,7 +465,6 @@ MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.boot_params	= TRIZEPS4_SDRAM_BASE + 0x100,
-	.fixup		= trizeps4_fixup,
 	.init_machine	= trizeps4_init,
 	.map_io		= trizeps4_map_io,
 	.init_irq	= pxa_init_irq,

arch/arm/mm/consistent.c

@@ -238,7 +238,7 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
 			 * x86 does not mark the pages reserved...
 			 */
 			SetPageReserved(page);
-			set_pte(pte, mk_pte(page, prot));
+			set_pte_ext(pte, mk_pte(page, prot), 0);
 			page++;
 			pte++;
 			off++;

arch/arm/mm/copypage-v4mc.c

@@ -71,7 +71,7 @@ void v4_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
 {
 	spin_lock(&minicache_lock);
 
-	set_pte(TOP_PTE(0xffff8000), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot));
+	set_pte_ext(TOP_PTE(0xffff8000), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot), 0);
 	flush_tlb_kernel_page(0xffff8000);
 
 	mc_copy_user_page((void *)0xffff8000, kto);

arch/arm/mm/copypage-v6.c

@@ -70,8 +70,8 @@ static void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned lo
 	 */
 	spin_lock(&v6_lock);
 
-	set_pte(TOP_PTE(from_address) + offset, pfn_pte(__pa(kfrom) >> PAGE_SHIFT, PAGE_KERNEL));
-	set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kto) >> PAGE_SHIFT, PAGE_KERNEL));
+	set_pte_ext(TOP_PTE(from_address) + offset, pfn_pte(__pa(kfrom) >> PAGE_SHIFT, PAGE_KERNEL), 0);
+	set_pte_ext(TOP_PTE(to_address) + offset, pfn_pte(__pa(kto) >> PAGE_SHIFT, PAGE_KERNEL), 0);
 
 	from = from_address + (offset << PAGE_SHIFT);
 	to   = to_address + (offset << PAGE_SHIFT);
@@ -110,7 +110,7 @@ static void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr)
 	 */
 	spin_lock(&v6_lock);
 
-	set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kaddr) >> PAGE_SHIFT, PAGE_KERNEL));
+	set_pte_ext(TOP_PTE(to_address) + offset, pfn_pte(__pa(kaddr) >> PAGE_SHIFT, PAGE_KERNEL), 0);
 	flush_tlb_kernel_page(to);
 	clear_page((void *)to);
 

arch/arm/mm/copypage-xscale.c

@@ -93,7 +93,7 @@ void xscale_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
 {
 	spin_lock(&minicache_lock);
 
-	set_pte(TOP_PTE(COPYPAGE_MINICACHE), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot));
+	set_pte_ext(TOP_PTE(COPYPAGE_MINICACHE), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot), 0);
 	flush_tlb_kernel_page(COPYPAGE_MINICACHE);
 
 	mc_copy_user_page((void *)COPYPAGE_MINICACHE, kto);

arch/arm/mm/fault-armv.c

@@ -61,7 +61,7 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address)
 	if (pte_present(entry) && pte_val(entry) & shared_pte_mask) {
 		flush_cache_page(vma, address, pte_pfn(entry));
 		pte_val(entry) &= ~shared_pte_mask;
-		set_pte(pte, entry);
+		set_pte_at(vma->vm_mm, address, pte, entry);
 		flush_tlb_page(vma, address);
 		ret = 1;
 	}

arch/arm/mm/flush.c

@@ -26,7 +26,7 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
 	unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT);
 	const int zero = 0;
 
-	set_pte(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL));
+	set_pte_ext(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL), 0);
 	flush_tlb_kernel_page(to);
 
 	asm(	"mcrr	p15, 0, %1, %0, c14\n"

arch/arm/mm/ioremap.c

@@ -38,89 +38,71 @@
  */
 #define VM_ARM_SECTION_MAPPING	0x80000000
 
-static inline void
-remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
-	       unsigned long phys_addr, pgprot_t pgprot)
+static int remap_area_pte(pmd_t *pmd, unsigned long addr, unsigned long end,
+			  unsigned long phys_addr, pgprot_t prot)
 {
-	unsigned long end;
+	pte_t *pte;
+
+	pte = pte_alloc_kernel(pmd, addr);
+	if (!pte)
+		return -ENOMEM;
 
-	address &= ~PMD_MASK;
-	end = address + size;
-	if (end > PMD_SIZE)
-		end = PMD_SIZE;
-	BUG_ON(address >= end);
 	do {
 		if (!pte_none(*pte))
 			goto bad;
 
-		set_pte(pte, pfn_pte(phys_addr >> PAGE_SHIFT, pgprot));
-		address += PAGE_SIZE;
+		set_pte_ext(pte, pfn_pte(phys_addr >> PAGE_SHIFT, prot), 0);
 		phys_addr += PAGE_SIZE;
-		pte++;
-	} while (address && (address < end));
-	return;
+	} while (pte++, addr += PAGE_SIZE, addr != end);
+	return 0;
 
  bad:
-	printk("remap_area_pte: page already exists\n");
+	printk(KERN_CRIT "remap_area_pte: page already exists\n");
 	BUG();
 }
 
-static inline int
-remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
-	       unsigned long phys_addr, unsigned long flags)
+static inline int remap_area_pmd(pgd_t *pgd, unsigned long addr,
+				 unsigned long end, unsigned long phys_addr,
+				 pgprot_t prot)
 {
-	unsigned long end;
-	pgprot_t pgprot;
-
-	address &= ~PGDIR_MASK;
-	end = address + size;
+	unsigned long next;
+	pmd_t *pmd;
+	int ret = 0;
 
-	if (end > PGDIR_SIZE)
-		end = PGDIR_SIZE;
+	pmd = pmd_alloc(&init_mm, pgd, addr);
+	if (!pmd)
+		return -ENOMEM;
 
-	phys_addr -= address;
-	BUG_ON(address >= end);
-
-	pgprot = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_WRITE | flags);
 	do {
-		pte_t * pte = pte_alloc_kernel(pmd, address);
-		if (!pte)
-			return -ENOMEM;
-		remap_area_pte(pte, address, end - address, address + phys_addr, pgprot);
-		address = (address + PMD_SIZE) & PMD_MASK;
-		pmd++;
-	} while (address && (address < end));
-	return 0;
+		next = pmd_addr_end(addr, end);
+		ret = remap_area_pte(pmd, addr, next, phys_addr, prot);
+		if (ret)
+			return ret;
+		phys_addr += next - addr;
+	} while (pmd++, addr = next, addr != end);
+	return ret;
 }
 
-static int
-remap_area_pages(unsigned long start, unsigned long pfn,
-		 unsigned long size, unsigned long flags)
+static int remap_area_pages(unsigned long start, unsigned long pfn,
+			    unsigned long size, unsigned long flags)
 {
-	unsigned long address = start;
-	unsigned long end = start + size;
+	unsigned long addr = start;
+	unsigned long next, end = start + size;
 	unsigned long phys_addr = __pfn_to_phys(pfn);
+	pgprot_t prot = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG |
+				 L_PTE_DIRTY | L_PTE_WRITE | flags);
+	pgd_t *pgd;
 	int err = 0;
-	pgd_t * dir;
 
-	phys_addr -= address;
-	dir = pgd_offset(&init_mm, address);
-	BUG_ON(address >= end);
+	BUG_ON(addr >= end);
+	pgd = pgd_offset_k(addr);
 	do {
-		pmd_t *pmd = pmd_alloc(&init_mm, dir, address);
-		if (!pmd) {
-			err = -ENOMEM;
-			break;
-		}
-		if (remap_area_pmd(pmd, address, end - address,
-					 phys_addr + address, flags)) {
-			err = -ENOMEM;
+		next = pgd_addr_end(addr, end);
+		err = remap_area_pmd(pgd, addr, next, phys_addr, prot);
+		if (err)
 			break;
-		}
-
-		address = (address + PGDIR_SIZE) & PGDIR_MASK;
-		dir++;
-	} while (address && (address < end));
+		phys_addr += next - addr;
+	} while (pgd++, addr = next, addr != end);
 
 	return err;
 }

arch/arm/mm/mmu.c

@@ -294,12 +294,6 @@ static void __init build_mem_type_table(void)
 		mem_types[MT_DEVICE].prot_pte |= L_PTE_BUFFERABLE;
 		mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED;
 
-		/*
-		 * User pages need to be mapped with the ASID
-		 * (iow, non-global)
-		 */
-		user_pgprot |= L_PTE_ASID;
-
 #ifdef CONFIG_SMP
 		/*
 		 * Mark memory with the "shared" attribute for SMP systems
@@ -408,7 +402,7 @@ alloc_init_page(unsigned long virt, unsigned long phys, unsigned int prot_l1, pg
 	}
 	ptep = pte_offset_kernel(pmdp, virt);
 
-	set_pte(ptep, pfn_pte(phys >> PAGE_SHIFT, prot));
+	set_pte_ext(ptep, pfn_pte(phys >> PAGE_SHIFT, prot), 0);
 }
 
 /*

arch/arm/mm/pgd.c

@@ -57,7 +57,7 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
 
 		init_pmd = pmd_offset(init_pgd, 0);
 		init_pte = pte_offset_map_nested(init_pmd, 0);
-		set_pte(new_pte, *init_pte);
+		set_pte_ext(new_pte, *init_pte, 0);
 		pte_unmap_nested(init_pte);
 		pte_unmap(new_pte);
 	}

arch/arm/mm/proc-arm1020.S

@@ -397,7 +397,7 @@ ENTRY(cpu_arm1020_switch_mm)
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm1020_set_pte)
+ENTRY(cpu_arm1020_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -477,7 +477,7 @@ arm1020_processor_functions:
 	.word	cpu_arm1020_do_idle
 	.word	cpu_arm1020_dcache_clean_area
 	.word	cpu_arm1020_switch_mm
-	.word	cpu_arm1020_set_pte
+	.word	cpu_arm1020_set_pte_ext
 	.size	arm1020_processor_functions, . - arm1020_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-arm1020e.S

@@ -381,7 +381,7 @@ ENTRY(cpu_arm1020e_switch_mm)
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm1020e_set_pte)
+ENTRY(cpu_arm1020e_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -458,7 +458,7 @@ arm1020e_processor_functions:
 	.word	cpu_arm1020e_do_idle
 	.word	cpu_arm1020e_dcache_clean_area
 	.word	cpu_arm1020e_switch_mm
-	.word	cpu_arm1020e_set_pte
+	.word	cpu_arm1020e_set_pte_ext
 	.size	arm1020e_processor_functions, . - arm1020e_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-arm1022.S

@@ -358,12 +358,12 @@ ENTRY(cpu_arm1022_switch_mm)
 	mov	pc, lr
         
 /*
- * cpu_arm1022_set_pte(ptep, pte)
+ * cpu_arm1022_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm1022_set_pte)
+ENTRY(cpu_arm1022_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -441,7 +441,7 @@ arm1022_processor_functions:
 	.word	cpu_arm1022_do_idle
 	.word	cpu_arm1022_dcache_clean_area
 	.word	cpu_arm1022_switch_mm
-	.word	cpu_arm1022_set_pte
+	.word	cpu_arm1022_set_pte_ext
 	.size	arm1022_processor_functions, . - arm1022_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-arm1026.S

@@ -347,12 +347,12 @@ ENTRY(cpu_arm1026_switch_mm)
 	mov	pc, lr
         
 /*
- * cpu_arm1026_set_pte(ptep, pte)
+ * cpu_arm1026_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm1026_set_pte)
+ENTRY(cpu_arm1026_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -436,7 +436,7 @@ arm1026_processor_functions:
 	.word	cpu_arm1026_do_idle
 	.word	cpu_arm1026_dcache_clean_area
 	.word	cpu_arm1026_switch_mm
-	.word	cpu_arm1026_set_pte
+	.word	cpu_arm1026_set_pte_ext
 	.size	arm1026_processor_functions, . - arm1026_processor_functions
 
 	.section .rodata

arch/arm/mm/proc-arm6_7.S

@@ -209,14 +209,14 @@ ENTRY(cpu_arm7_switch_mm)
 		mov	pc, lr
 
 /*
- * Function: arm6_7_set_pte(pte_t *ptep, pte_t pte)
+ * Function: arm6_7_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext)
  * Params  : r0 = Address to set
  *	   : r1 = value to set
  * Purpose : Set a PTE and flush it out of any WB cache
  */
 		.align	5
-ENTRY(cpu_arm6_set_pte)
-ENTRY(cpu_arm7_set_pte)
+ENTRY(cpu_arm6_set_pte_ext)
+ENTRY(cpu_arm7_set_pte_ext)
 #ifdef CONFIG_MMU
 		str	r1, [r0], #-2048		@ linux version
 
@@ -299,7 +299,7 @@ ENTRY(arm6_processor_functions)
 		.word	cpu_arm6_do_idle
 		.word	cpu_arm6_dcache_clean_area
 		.word	cpu_arm6_switch_mm
-		.word	cpu_arm6_set_pte
+		.word	cpu_arm6_set_pte_ext
 		.size	arm6_processor_functions, . - arm6_processor_functions
 
 /*
@@ -315,7 +315,7 @@ ENTRY(arm7_processor_functions)
 		.word	cpu_arm7_do_idle
 		.word	cpu_arm7_dcache_clean_area
 		.word	cpu_arm7_switch_mm
-		.word	cpu_arm7_set_pte
+		.word	cpu_arm7_set_pte_ext
 		.size	arm7_processor_functions, . - arm7_processor_functions
 
 		.section ".rodata"

arch/arm/mm/proc-arm720.S

@@ -88,13 +88,13 @@ ENTRY(cpu_arm720_switch_mm)
 		mov	pc, lr
 
 /*
- * Function: arm720_set_pte(pte_t *ptep, pte_t pte)
+ * Function: arm720_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext)
  * Params  : r0 = Address to set
  *	   : r1 = value to set
  * Purpose : Set a PTE and flush it out of any WB cache
  */
 		.align	5
-ENTRY(cpu_arm720_set_pte)
+ENTRY(cpu_arm720_set_pte_ext)
 #ifdef CONFIG_MMU
 		str	r1, [r0], #-2048		@ linux version
 
@@ -204,7 +204,7 @@ ENTRY(arm720_processor_functions)
 		.word	cpu_arm720_do_idle
 		.word	cpu_arm720_dcache_clean_area
 		.word	cpu_arm720_switch_mm
-		.word	cpu_arm720_set_pte
+		.word	cpu_arm720_set_pte_ext
 		.size	arm720_processor_functions, . - arm720_processor_functions
 
 		.section ".rodata"

arch/arm/mm/proc-arm920.S

@@ -344,12 +344,12 @@ ENTRY(cpu_arm920_switch_mm)
 	mov	pc, lr
 
 /*
- * cpu_arm920_set_pte(ptep, pte)
+ * cpu_arm920_set_pte(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm920_set_pte)
+ENTRY(cpu_arm920_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -423,7 +423,7 @@ arm920_processor_functions:
 	.word   cpu_arm920_do_idle
 	.word	cpu_arm920_dcache_clean_area
 	.word	cpu_arm920_switch_mm
-	.word	cpu_arm920_set_pte
+	.word	cpu_arm920_set_pte_ext
 	.size	arm920_processor_functions, . - arm920_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-arm922.S

@@ -348,12 +348,12 @@ ENTRY(cpu_arm922_switch_mm)
 	mov	pc, lr
 
 /*
- * cpu_arm922_set_pte(ptep, pte)
+ * cpu_arm922_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm922_set_pte)
+ENTRY(cpu_arm922_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -427,7 +427,7 @@ arm922_processor_functions:
 	.word   cpu_arm922_do_idle
 	.word	cpu_arm922_dcache_clean_area
 	.word	cpu_arm922_switch_mm
-	.word	cpu_arm922_set_pte
+	.word	cpu_arm922_set_pte_ext
 	.size	arm922_processor_functions, . - arm922_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-arm925.S

@@ -391,12 +391,12 @@ ENTRY(cpu_arm925_switch_mm)
 	mov	pc, lr
 
 /*
- * cpu_arm925_set_pte(ptep, pte)
+ * cpu_arm925_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm925_set_pte)
+ENTRY(cpu_arm925_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -490,7 +490,7 @@ arm925_processor_functions:
 	.word   cpu_arm925_do_idle
 	.word	cpu_arm925_dcache_clean_area
 	.word	cpu_arm925_switch_mm
-	.word	cpu_arm925_set_pte
+	.word	cpu_arm925_set_pte_ext
 	.size	arm925_processor_functions, . - arm925_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-arm926.S

@@ -348,12 +348,12 @@ ENTRY(cpu_arm926_switch_mm)
 	mov	pc, lr
 
 /*
- * cpu_arm926_set_pte(ptep, pte)
+ * cpu_arm926_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_arm926_set_pte)
+ENTRY(cpu_arm926_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -439,7 +439,7 @@ arm926_processor_functions:
 	.word	cpu_arm926_do_idle
 	.word	cpu_arm926_dcache_clean_area
 	.word	cpu_arm926_switch_mm
-	.word	cpu_arm926_set_pte
+	.word	cpu_arm926_set_pte_ext
 	.size	arm926_processor_functions, . - arm926_processor_functions
 
 	.section ".rodata"
@@ -480,7 +480,7 @@ __arm926_proc_info:
 	b	__arm926_setup
 	.long	cpu_arch_name
 	.long	cpu_elf_name
-	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_VFP|HWCAP_EDSP|HWCAP_JAVA
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_JAVA
 	.long	cpu_arm926_name
 	.long	arm926_processor_functions
 	.long	v4wbi_tlb_fns

arch/arm/mm/proc-sa110.S

@@ -146,12 +146,12 @@ ENTRY(cpu_sa110_switch_mm)
 #endif
 
 /*
- * cpu_sa110_set_pte(ptep, pte)
+ * cpu_sa110_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_sa110_set_pte)
+ENTRY(cpu_sa110_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -222,7 +222,7 @@ ENTRY(sa110_processor_functions)
 	.word	cpu_sa110_do_idle
 	.word	cpu_sa110_dcache_clean_area
 	.word	cpu_sa110_switch_mm
-	.word	cpu_sa110_set_pte
+	.word	cpu_sa110_set_pte_ext
 	.size	sa110_processor_functions, . - sa110_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-sa1100.S

@@ -159,12 +159,12 @@ ENTRY(cpu_sa1100_switch_mm)
 #endif
 
 /*
- * cpu_sa1100_set_pte(ptep, pte)
+ * cpu_sa1100_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  */
 	.align	5
-ENTRY(cpu_sa1100_set_pte)
+ENTRY(cpu_sa1100_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
@@ -237,7 +237,7 @@ ENTRY(sa1100_processor_functions)
 	.word	cpu_sa1100_do_idle
 	.word	cpu_sa1100_dcache_clean_area
 	.word	cpu_sa1100_switch_mm
-	.word	cpu_sa1100_set_pte
+	.word	cpu_sa1100_set_pte_ext
 	.size	sa1100_processor_functions, . - sa1100_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-syms.c

@@ -17,7 +17,7 @@
 
 #ifndef MULTI_CPU
 EXPORT_SYMBOL(cpu_dcache_clean_area);
-EXPORT_SYMBOL(cpu_set_pte);
+EXPORT_SYMBOL(cpu_set_pte_ext);
 #else
 EXPORT_SYMBOL(processor);
 #endif

arch/arm/mm/proc-v6.S

@@ -103,13 +103,14 @@ ENTRY(cpu_v6_switch_mm)
 	mov	pc, lr
 
 /*
- *	cpu_v6_set_pte(ptep, pte)
+ *	cpu_v6_set_pte_ext(ptep, pte, ext)
  *
  *	Set a level 2 translation table entry.
  *
  *	- ptep  - pointer to level 2 translation table entry
  *		  (hardware version is stored at -1024 bytes)
  *	- pte   - PTE value to store
+ *	- ext	- value for extended PTE bits
  *
  *	Permissions:
  *	  YUWD  APX AP1 AP0	SVC	User
@@ -121,33 +122,34 @@ ENTRY(cpu_v6_switch_mm)
  *	  11x0   0   1   0	r/w	r/o
  *	  1111   0   1   1	r/w	r/w
  */
-ENTRY(cpu_v6_set_pte)
+ENTRY(cpu_v6_set_pte_ext)
 #ifdef CONFIG_MMU
 	str	r1, [r0], #-2048		@ linux version
 
-	bic	r2, r1, #0x000003f0
-	bic	r2, r2, #0x00000003
-	orr	r2, r2, #PTE_EXT_AP0 | 2
+	bic	r3, r1, #0x000003f0
+	bic	r3, r3, #0x00000003
+	orr	r3, r3, r2
+	orr	r3, r3, #PTE_EXT_AP0 | 2
 
 	tst	r1, #L_PTE_WRITE
 	tstne	r1, #L_PTE_DIRTY
-	orreq	r2, r2, #PTE_EXT_APX
+	orreq	r3, r3, #PTE_EXT_APX
 
 	tst	r1, #L_PTE_USER
-	orrne	r2, r2, #PTE_EXT_AP1
-	tstne	r2, #PTE_EXT_APX
-	bicne	r2, r2, #PTE_EXT_APX | PTE_EXT_AP0
+	orrne	r3, r3, #PTE_EXT_AP1
+	tstne	r3, #PTE_EXT_APX
+	bicne	r3, r3, #PTE_EXT_APX | PTE_EXT_AP0
 
 	tst	r1, #L_PTE_YOUNG
-	biceq	r2, r2, #PTE_EXT_APX | PTE_EXT_AP_MASK
+	biceq	r3, r3, #PTE_EXT_APX | PTE_EXT_AP_MASK
 
 	tst	r1, #L_PTE_EXEC
-	orreq	r2, r2, #PTE_EXT_XN
+	orreq	r3, r3, #PTE_EXT_XN
 
 	tst	r1, #L_PTE_PRESENT
-	moveq	r2, #0
+	moveq	r3, #0
 
-	str	r2, [r0]
+	str	r3, [r0]
 	mcr	p15, 0, r0, c7, c10, 1 @ flush_pte
 #endif
 	mov	pc, lr
@@ -156,7 +158,7 @@ ENTRY(cpu_v6_set_pte)
 
 
 cpu_v6_name:
-	.asciz	"Some Random V6 Processor"
+	.asciz	"ARMv6-compatible processor"
 	.align
 
 	.section ".text.init", #alloc, #execinstr
@@ -207,11 +209,6 @@ __v6_setup:
 #endif
 	mcr	p15, 0, r4, c2, c0, 1		@ load TTB1
 #endif /* CONFIG_MMU */
-#ifdef CONFIG_VFP
-	mrc	p15, 0, r0, c1, c0, 2
-	orr	r0, r0, #(0xf << 20)
-	mcr	p15, 0, r0, c1, c0, 2		@ Enable full access to VFP
-#endif
 	adr	r5, v6_crval
 	ldmia	r5, {r5, r6}
 	mrc	p15, 0, r0, c1, c0, 0		@ read control register
@@ -238,7 +235,7 @@ ENTRY(v6_processor_functions)
 	.word	cpu_v6_do_idle
 	.word	cpu_v6_dcache_clean_area
 	.word	cpu_v6_switch_mm
-	.word	cpu_v6_set_pte
+	.word	cpu_v6_set_pte_ext
 	.size	v6_processor_functions, . - v6_processor_functions
 
 	.type	cpu_arch_name, #object
@@ -273,7 +270,7 @@ __v6_proc_info:
 	b	__v6_setup
 	.long	cpu_arch_name
 	.long	cpu_elf_name
-	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_VFP|HWCAP_EDSP|HWCAP_JAVA
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_JAVA
 	.long	cpu_v6_name
 	.long	v6_processor_functions
 	.long	v6wbi_tlb_fns

arch/arm/mm/proc-xsc3.S

@@ -357,13 +357,13 @@ ENTRY(cpu_xsc3_switch_mm)
 	cpwait_ret lr, ip
 
 /*
- * cpu_xsc3_set_pte(ptep, pte)
+ * cpu_xsc3_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  *
  */
 	.align	5
-ENTRY(cpu_xsc3_set_pte)
+ENTRY(cpu_xsc3_set_pte_ext)
 	str	r1, [r0], #-2048		@ linux version
 
 	bic	r2, r1, #0xff0			@ Keep C, B bits
@@ -457,7 +457,7 @@ ENTRY(xsc3_processor_functions)
 	.word	cpu_xsc3_do_idle
 	.word	cpu_xsc3_dcache_clean_area
 	.word	cpu_xsc3_switch_mm
-	.word	cpu_xsc3_set_pte
+	.word	cpu_xsc3_set_pte_ext
 	.size	xsc3_processor_functions, . - xsc3_processor_functions
 
 	.section ".rodata"

arch/arm/mm/proc-xscale.S

@@ -421,14 +421,14 @@ ENTRY(cpu_xscale_switch_mm)
 	cpwait_ret lr, ip
 
 /*
- * cpu_xscale_set_pte(ptep, pte)
+ * cpu_xscale_set_pte_ext(ptep, pte, ext)
  *
  * Set a PTE and flush it out
  *
  * Errata 40: must set memory to write-through for user read-only pages.
  */
 	.align	5
-ENTRY(cpu_xscale_set_pte)
+ENTRY(cpu_xscale_set_pte_ext)
 	str	r1, [r0], #-2048		@ linux version
 
 	bic	r2, r1, #0xff0
@@ -529,7 +529,7 @@ ENTRY(xscale_processor_functions)
 	.word	cpu_xscale_do_idle
 	.word	cpu_xscale_dcache_clean_area
 	.word	cpu_xscale_switch_mm
-	.word	cpu_xscale_set_pte
+	.word	cpu_xscale_set_pte_ext
 	.size	xscale_processor_functions, . - xscale_processor_functions
 
 	.section ".rodata"

arch/arm/vfp/vfpmodule.c

@@ -263,13 +263,24 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
 	if (exceptions)
 		vfp_raise_exceptions(exceptions, trigger, orig_fpscr, regs);
 }
- 
+
 /*
  * VFP support code initialisation.
  */
 static int __init vfp_init(void)
 {
 	unsigned int vfpsid;
+	unsigned int cpu_arch = cpu_architecture();
+	u32 access = 0;
+
+	if (cpu_arch >= CPU_ARCH_ARMv6) {
+		access = get_copro_access();
+
+		/*
+		 * Enable full access to VFP (cp10 and cp11)
+		 */
+		set_copro_access(access | CPACC_FULL(10) | CPACC_FULL(11));
+	}
 
 	/*
 	 * First check that there is a VFP that we can use.
@@ -281,6 +292,12 @@ static int __init vfp_init(void)
 	printk(KERN_INFO "VFP support v0.3: ");
 	if (VFP_arch) {
 		printk("not present\n");
+
+		/*
+		 * Restore the copro access register.
+		 */
+		if (cpu_arch >= CPU_ARCH_ARMv6)
+			set_copro_access(access);
 	} else if (vfpsid & FPSID_NODOUBLE) {
 		printk("no double precision support\n");
 	} else {
@@ -291,9 +308,16 @@ static int __init vfp_init(void)
 			(vfpsid & FPSID_PART_MASK) >> FPSID_PART_BIT,
 			(vfpsid & FPSID_VARIANT_MASK) >> FPSID_VARIANT_BIT,
 			(vfpsid & FPSID_REV_MASK) >> FPSID_REV_BIT);
+
 		vfp_vector = vfp_support_entry;
 
 		thread_register_notifier(&vfp_notifier_block);
+
+		/*
+		 * We detected VFP, and the support code is
+		 * in place; report VFP support to userspace.
+		 */
+		elf_hwcap |= HWCAP_VFP;
 	}
 	return 0;
 }

include/asm-arm/arch-imx/imx-regs.h

@@ -41,7 +41,13 @@
 
 /* PLL registers */
 #define CSCR   __REG(IMX_PLL_BASE)        /* Clock Source Control Register */
-#define CSCR_SYSTEM_SEL (1<<16)
+#define CSCR_SPLL_RESTART	(1<<22)
+#define CSCR_MPLL_RESTART	(1<<21)
+#define CSCR_SYSTEM_SEL		(1<<16)
+#define CSCR_BCLK_DIV		(0xf<<10)
+#define CSCR_MPU_PRESC		(1<<15)
+#define CSCR_SPEN		(1<<1)
+#define CSCR_MPEN		(1<<0)
 
 #define MPCTL0 __REG(IMX_PLL_BASE + 0x4)  /* MCU PLL Control Register 0 */
 #define MPCTL1 __REG(IMX_PLL_BASE + 0x8)  /* MCU PLL and System Clock Register 1 */
@@ -49,8 +55,6 @@
 #define SPCTL1 __REG(IMX_PLL_BASE + 0x10) /* System PLL Control Register 1 */
 #define PCDR   __REG(IMX_PLL_BASE + 0x20) /* Peripheral Clock Divider Register */
 
-#define CSCR_MPLL_RESTART (1<<21)
-
 /*
  *  GPIO Module and I/O Multiplexer
  *  x = 0..3 for reg_A, reg_B, reg_C, reg_D

include/asm-arm/arch-s3c2410/regs-udc.h

@@ -11,8 +11,7 @@
 #ifndef __ASM_ARCH_REGS_UDC_H
 #define __ASM_ARCH_REGS_UDC_H
 
-
-#define S3C2410_USBDREG(x) ((x) + S3C24XX_VA_USBDEV)
+#define S3C2410_USBDREG(x) (x)
 
 #define S3C2410_UDC_FUNC_ADDR_REG	S3C2410_USBDREG(0x0140)
 #define S3C2410_UDC_PWR_REG		S3C2410_USBDREG(0x0144)
@@ -136,8 +135,8 @@
 #define S3C2410_UDC_OCSR2_ISO		(1<<6) // R/W
 #define S3C2410_UDC_OCSR2_DMAIEN	(1<<5) // R/W
 
-#define S3C2410_UDC_SETIX(x)	    \
-	__raw_writel(S3C2410_UDC_INDEX_ ## x, S3C2410_UDC_INDEX_REG);
+#define S3C2410_UDC_SETIX(base,x)	    \
+	writel(S3C2410_UDC_INDEX_ ## x, base+S3C2410_UDC_INDEX_REG);
 
 
 #define S3C2410_UDC_EP0_CSR_OPKRDY	(1<<0)

include/asm-arm/cpu-multi32.h

@@ -50,9 +50,10 @@ extern struct processor {
 	 */
 	void (*switch_mm)(unsigned long pgd_phys, struct mm_struct *mm);
 	/*
-	 * Set a PTE
+	 * Set a possibly extended PTE.  Non-extended PTEs should
+	 * ignore 'ext'.
 	 */
-	void (*set_pte)(pte_t *ptep, pte_t pte);
+	void (*set_pte_ext)(pte_t *ptep, pte_t pte, unsigned int ext);
 } processor;
 
 #define cpu_proc_init()			processor._proc_init()
@@ -60,5 +61,5 @@ extern struct processor {
 #define cpu_reset(addr)			processor.reset(addr)
 #define cpu_do_idle()			processor._do_idle()
 #define cpu_dcache_clean_area(addr,sz)	processor.dcache_clean_area(addr,sz)
-#define cpu_set_pte(ptep, pte)		processor.set_pte(ptep, pte)
+#define cpu_set_pte_ext(ptep,pte,ext)	processor.set_pte_ext(ptep,pte,ext)
 #define cpu_do_switch_mm(pgd,mm)	processor.switch_mm(pgd,mm)

include/asm-arm/cpu-single.h

@@ -28,7 +28,7 @@
 #define cpu_do_idle			__cpu_fn(CPU_NAME,_do_idle)
 #define cpu_dcache_clean_area		__cpu_fn(CPU_NAME,_dcache_clean_area)
 #define cpu_do_switch_mm		__cpu_fn(CPU_NAME,_switch_mm)
-#define cpu_set_pte			__cpu_fn(CPU_NAME,_set_pte)
+#define cpu_set_pte_ext			__cpu_fn(CPU_NAME,_set_pte_ext)
 
 #include <asm/page.h>
 
@@ -40,5 +40,5 @@ extern void cpu_proc_fin(void);
 extern int cpu_do_idle(void);
 extern void cpu_dcache_clean_area(void *, int);
 extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
-extern void cpu_set_pte(pte_t *ptep, pte_t pte);
+extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext);
 extern void cpu_reset(unsigned long addr) __attribute__((noreturn));

include/asm-arm/pgtable.h

@@ -21,6 +21,7 @@
 
 #include <asm/memory.h>
 #include <asm/arch/vmalloc.h>
+#include <asm/pgtable-hwdef.h>
 
 /*
  * Just any arbitrary offset to the start of the vmalloc VM area: the
@@ -170,7 +171,6 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 #define L_PTE_EXEC		(1 << 6)
 #define L_PTE_DIRTY		(1 << 7)
 #define L_PTE_SHARED		(1 << 10)	/* shared(v6), coherent(xsc3) */
-#define L_PTE_ASID		(1 << 11)	/* non-global (use ASID, v6) */
 
 #ifndef __ASSEMBLY__
 
@@ -228,7 +228,7 @@ extern struct page *empty_zero_page;
 #define pfn_pte(pfn,prot)	(__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 
 #define pte_none(pte)		(!pte_val(pte))
-#define pte_clear(mm,addr,ptep)	set_pte_at((mm),(addr),(ptep), __pte(0))
+#define pte_clear(mm,addr,ptep)	set_pte_ext(ptep, __pte(0), 0)
 #define pte_page(pte)		(pfn_to_page(pte_pfn(pte)))
 #define pte_offset_kernel(dir,addr)	(pmd_page_vaddr(*(dir)) + __pte_index(addr))
 #define pte_offset_map(dir,addr)	(pmd_page_vaddr(*(dir)) + __pte_index(addr))
@@ -236,8 +236,11 @@ extern struct page *empty_zero_page;
 #define pte_unmap(pte)		do { } while (0)
 #define pte_unmap_nested(pte)	do { } while (0)
 
-#define set_pte(ptep, pte)	cpu_set_pte(ptep,pte)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
+
+#define set_pte_at(mm,addr,ptep,pteval) do { \
+	set_pte_ext(ptep, pteval, (addr) >= PAGE_OFFSET ? 0 : PTE_EXT_NG); \
+ } while (0)
 
 /*
  * The following only work if pte_present() is true.

include/asm-arm/processor.h

@@ -103,14 +103,14 @@ extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
 #if __LINUX_ARM_ARCH__ >= 5
 
 #define ARCH_HAS_PREFETCH
-#define prefetch(ptr)				\
-	({					\
-		__asm__ __volatile__(		\
-		"pld\t%0"			\
-		:				\
-		: "o" (*(char *)(ptr))		\
-		: "cc");			\
-	})
+static inline void prefetch(const void *ptr)
+{
+	__asm__ __volatile__(
+		"pld\t%0"
+		:
+		: "o" (*(char *)ptr)
+		: "cc");
+}
 
 #define ARCH_HAS_PREFETCHW
 #define prefetchw(ptr)	prefetch(ptr)

include/asm-arm/system.h

@@ -139,23 +139,60 @@ static inline int cpu_is_xsc3(void)
 #define	cpu_is_xscale()	1
 #endif
 
-#define set_cr(x)					\
-	__asm__ __volatile__(				\
-	"mcr	p15, 0, %0, c1, c0, 0	@ set CR"	\
-	: : "r" (x) : "cc")
-
-#define get_cr()					\
-	({						\
-	unsigned int __val;				\
-	__asm__ __volatile__(				\
-	"mrc	p15, 0, %0, c1, c0, 0	@ get CR"	\
-	: "=r" (__val) : : "cc");			\
-	__val;						\
-	})
+static inline unsigned int get_cr(void)
+{
+	unsigned int val;
+	asm("mrc p15, 0, %0, c1, c0, 0	@ get CR" : "=r" (val) : : "cc");
+	return val;
+}
+
+static inline void set_cr(unsigned int val)
+{
+	asm volatile("mcr p15, 0, %0, c1, c0, 0	@ set CR"
+	  : : "r" (val) : "cc");
+}
+
+#define CPACC_FULL(n)		(3 << (n * 2))
+#define CPACC_SVC(n)		(1 << (n * 2))
+#define CPACC_DISABLE(n)	(0 << (n * 2))
+
+static inline unsigned int get_copro_access(void)
+{
+	unsigned int val;
+	asm("mrc p15, 0, %0, c1, c0, 2 @ get copro access"
+	  : "=r" (val) : : "cc");
+	return val;
+}
+
+static inline void set_copro_access(unsigned int val)
+{
+	asm volatile("mcr p15, 0, %0, c1, c0, 2 @ set copro access"
+	  : : "r" (val) : "cc");
+}
 
 extern unsigned long cr_no_alignment;	/* defined in entry-armv.S */
 extern unsigned long cr_alignment;	/* defined in entry-armv.S */
 
+#ifndef CONFIG_SMP
+static inline void adjust_cr(unsigned long mask, unsigned long set)
+{
+	unsigned long flags, cr;
+
+	mask &= ~CR_A;
+
+	set &= mask;
+
+	local_irq_save(flags);
+
+	cr_no_alignment = (cr_no_alignment & ~mask) | set;
+	cr_alignment = (cr_alignment & ~mask) | set;
+
+	set_cr((get_cr() & ~mask) | set);
+
+	local_irq_restore(flags);
+}
+#endif
+
 #define UDBG_UNDEFINED	(1 << 0)
 #define UDBG_SYSCALL	(1 << 1)
 #define UDBG_BADABORT	(1 << 2)

include/asm-arm/unistd.h

@@ -347,6 +347,19 @@
 #define __NR_mbind			(__NR_SYSCALL_BASE+319)
 #define __NR_get_mempolicy		(__NR_SYSCALL_BASE+320)
 #define __NR_set_mempolicy		(__NR_SYSCALL_BASE+321)
+#define __NR_openat			(__NR_SYSCALL_BASE+322)
+#define __NR_mkdirat			(__NR_SYSCALL_BASE+323)
+#define __NR_mknodat			(__NR_SYSCALL_BASE+324)
+#define __NR_fchownat			(__NR_SYSCALL_BASE+325)
+#define __NR_futimesat			(__NR_SYSCALL_BASE+326)
+#define __NR_fstatat64			(__NR_SYSCALL_BASE+327)
+#define __NR_unlinkat			(__NR_SYSCALL_BASE+328)
+#define __NR_renameat			(__NR_SYSCALL_BASE+329)
+#define __NR_linkat			(__NR_SYSCALL_BASE+330)
+#define __NR_symlinkat			(__NR_SYSCALL_BASE+331)
+#define __NR_readlinkat			(__NR_SYSCALL_BASE+332)
+#define __NR_fchmodat			(__NR_SYSCALL_BASE+333)
+#define __NR_faccessat			(__NR_SYSCALL_BASE+334)
 
 /*
  * The following SWIs are ARM private.