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| author | Zhao Chenhui <chenhui.zhao@freescale.com> | 2012-07-20 20:42:33 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2012-09-12 14:57:08 -0500 |
| commit | 15f34eb12340b2c2e0cd90c5987ad6b5f73b79b7 (patch) | |
| tree | dea59467dad275977de81a147a98b83bf6e8b04a /arch/powerpc/platforms/85xx/smp.c | |
| parent | 03bcb7e35f7e5f759fe03f10a12cd4060dabe60d (diff) | |
| download | blackbird-op-linux-15f34eb12340b2c2e0cd90c5987ad6b5f73b79b7.tar.gz blackbird-op-linux-15f34eb12340b2c2e0cd90c5987ad6b5f73b79b7.zip | |
powerpc/85xx: Replace epapr spin table macros/defines with a struct
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/85xx/smp.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/smp.c | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index ff4249044a3c..4827709996ce 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -2,7 +2,7 @@ * Author: Andy Fleming <afleming@freescale.com> * Kumar Gala <galak@kernel.crashing.org> * - * Copyright 2006-2008, 2011 Freescale Semiconductor Inc. + * Copyright 2006-2008, 2011-2012 Freescale Semiconductor Inc. * * 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 @@ -17,6 +17,7 @@ #include <linux/of.h> #include <linux/kexec.h> #include <linux/highmem.h> +#include <linux/cpu.h> #include <asm/machdep.h> #include <asm/pgtable.h> @@ -31,23 +32,21 @@ extern void __early_start(void); -#define BOOT_ENTRY_ADDR_UPPER 0 -#define BOOT_ENTRY_ADDR_LOWER 1 -#define BOOT_ENTRY_R3_UPPER 2 -#define BOOT_ENTRY_R3_LOWER 3 -#define BOOT_ENTRY_RESV 4 -#define BOOT_ENTRY_PIR 5 -#define BOOT_ENTRY_R6_UPPER 6 -#define BOOT_ENTRY_R6_LOWER 7 -#define NUM_BOOT_ENTRY 8 -#define SIZE_BOOT_ENTRY (NUM_BOOT_ENTRY * sizeof(u32)) +struct epapr_spin_table { + u32 addr_h; + u32 addr_l; + u32 r3_h; + u32 r3_l; + u32 reserved; + u32 pir; +}; static int __init smp_85xx_kick_cpu(int nr) { unsigned long flags; const u64 *cpu_rel_addr; - __iomem u32 *bptr_vaddr; + __iomem struct epapr_spin_table *spin_table; struct device_node *np; int n = 0, hw_cpu = get_hard_smp_processor_id(nr); int ioremappable; @@ -75,19 +74,20 @@ smp_85xx_kick_cpu(int nr) /* Map the spin table */ if (ioremappable) - bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY); + spin_table = ioremap(*cpu_rel_addr, + sizeof(struct epapr_spin_table)); else - bptr_vaddr = phys_to_virt(*cpu_rel_addr); + spin_table = phys_to_virt(*cpu_rel_addr); local_irq_save(flags); - out_be32(bptr_vaddr + BOOT_ENTRY_PIR, hw_cpu); + out_be32(&spin_table->pir, hw_cpu); #ifdef CONFIG_PPC32 - out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start)); + out_be32(&spin_table->addr_l, __pa(__early_start)); if (!ioremappable) - flush_dcache_range((ulong)bptr_vaddr, - (ulong)(bptr_vaddr + SIZE_BOOT_ENTRY)); + flush_dcache_range((ulong)spin_table, + (ulong)spin_table + sizeof(struct epapr_spin_table)); /* Wait a bit for the CPU to ack. */ while ((__secondary_hold_acknowledge != hw_cpu) && (++n < 1000)) @@ -95,18 +95,18 @@ smp_85xx_kick_cpu(int nr) #else smp_generic_kick_cpu(nr); - out_be64((u64 *)(bptr_vaddr + BOOT_ENTRY_ADDR_UPPER), - __pa((u64)*((unsigned long long *) generic_secondary_smp_init))); + out_be64((u64 *)(&spin_table->addr_h), + __pa((u64)*((unsigned long long *)generic_secondary_smp_init))); if (!ioremappable) - flush_dcache_range((ulong)bptr_vaddr, - (ulong)(bptr_vaddr + SIZE_BOOT_ENTRY)); + flush_dcache_range((ulong)spin_table, + (ulong)spin_table + sizeof(struct epapr_spin_table)); #endif local_irq_restore(flags); if (ioremappable) - iounmap(bptr_vaddr); + iounmap(spin_table); pr_debug("waited %d msecs for CPU #%d.\n", n, nr); |
