diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 08:15:29 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 08:15:29 -0800 |
commit | 1c496784a0d317535f846ddb2c93a08ba936266b (patch) | |
tree | 6d0225860032f263b6d95a3e55c364a1a5f55ec1 /arch/arm/plat-omap/include/plat/smp.h | |
parent | adf9904dc774f23f04a5425f0198483ea61f878b (diff) | |
parent | 9a01609e1885b827b979d6d9dd86f43208a9e5fc (diff) |
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (149 commits)
arm: omap: Add omap3_defconfig
AM35xx: Defconfig for AM3517 EVM board
AM35xx: Add support for AM3517 EVM board
omap: 3630sdp: defconfig creation
omap: 3630sdp: introduce 3630 sdp board support
omap3: Add defconfig for IGEP v2 board
omap3: Add minimal IGEP v2 support
omap3: Add CompuLab CM-T35 defconfig
omap3: Add CompuLab CM-T35 board support
omap3: rx51: Add wl1251 wlan driver support
omap3: rx51: Add SDRAM init
omap1: Add default kernel configuration for Herald
omap1: Add board support and LCD for HTC Herald
omap: zoom2: update defconfig for LL_DEBUG_NONE
omap: zoom3: defconfig creation
omap3: zoom: Introduce zoom3 board support
omap3: zoom: Drop i2c-1 speed to 2400
omap3: zoom: rename zoom2 name to generic zoom
omap3: zoom: split board file for software reuse
omap3evm: MIgrate to smsc911x ethernet driver
...
Fix trivial conflict (two unrelated config options added next to each
other) in arch/arm/mach-omap2/Makefile
Diffstat (limited to 'arch/arm/plat-omap/include/plat/smp.h')
-rw-r--r-- | arch/arm/plat-omap/include/plat/smp.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/smp.h b/arch/arm/plat-omap/include/plat/smp.h new file mode 100644 index 00000000000..dcaa8fde706 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/smp.h @@ -0,0 +1,51 @@ +/* + * OMAP4 machine specific smp.h + * + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Interface functions needed for the SMP. This file is based on arm + * realview smp platform. + * Copyright (c) 2003 ARM Limited. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef OMAP_ARCH_SMP_H +#define OMAP_ARCH_SMP_H + +#include <asm/hardware/gic.h> + +/* + * set_event() is used to wake up secondary core from wfe using sev. ROM + * code puts the second core into wfe(standby). + * + */ +#define set_event() __asm__ __volatile__ ("sev" : : : "memory") + +/* Needed for secondary core boot */ +extern void omap_secondary_startup(void); + +/* + * We use Soft IRQ1 as the IPI + */ +static inline void smp_cross_call(const struct cpumask *mask) +{ + gic_raise_softirq(mask, 1); +} + +/* + * Read MPIDR: Multiprocessor affinity register + */ +#define hard_smp_processor_id() \ + ({ \ + unsigned int cpunum; \ + __asm__("mrc p15, 0, %0, c0, c0, 5" \ + : "=r" (cpunum)); \ + cpunum &= 0x0F; \ + }) + +#endif |