diff options
| author | David S. Miller <davem@davemloft.net> | 2005-08-29 22:46:43 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-08-29 22:46:43 -0700 |
| commit | d7ce78fd9a51ca0d6b9a8cf35baef884ddb9a95c (patch) | |
| tree | d7103663f1b5262d7a90f9d99e0c2af611ad07c9 | |
| parent | 826509f8110049663799bc20f2b5b6170e2f78ca (diff) | |
[SPARC64]: Eliminate irq_cpustat_t.
We can put the __softirq_pending mask in the cpudata,
no need for the silly NR_CPUS array in kernel/softirq.c
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc64/kernel/rtrap.S | 13 | ||||
| -rw-r--r-- | arch/sparc64/kernel/setup.c | 12 | ||||
| -rw-r--r-- | include/asm-sparc64/cpudata.h | 4 | ||||
| -rw-r--r-- | include/asm-sparc64/hardirq.h | 16 |
4 files changed, 15 insertions, 30 deletions
diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S index 0696ed4b9d6..fafd227735f 100644 --- a/arch/sparc64/kernel/rtrap.S +++ b/arch/sparc64/kernel/rtrap.S @@ -153,11 +153,14 @@ __handle_signal: rtrap_irq: rtrap_clr_l6: clr %l6 rtrap: - ldub [%g6 + TI_CPU], %l0 - sethi %hi(irq_stat), %l2 ! &softirq_active - or %l2, %lo(irq_stat), %l2 ! &softirq_active -irqsz_patchme: sllx %l0, 0, %l0 - lduw [%l2 + %l0], %l1 ! softirq_pending +#ifndef CONFIG_SMP + sethi %hi(per_cpu____cpu_data), %l0 + lduw [%l0 + %lo(per_cpu____cpu_data)], %l1 +#else + sethi %hi(per_cpu____cpu_data), %l0 + or %l0, %lo(per_cpu____cpu_data), %l0 + lduw [%l0 + %g5], %l1 +#endif cmp %l1, 0 /* mm/ultra.S:xcall_report_regs KNOWS about this load. */ diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index fbdfed3798d..ddbed3341a2 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -511,18 +511,6 @@ void __init setup_arch(char **cmdline_p) conswitchp = &prom_con; #endif -#ifdef CONFIG_SMP - i = (unsigned long)&irq_stat[1] - (unsigned long)&irq_stat[0]; - if ((i == SMP_CACHE_BYTES) || (i == (2 * SMP_CACHE_BYTES))) { - extern unsigned int irqsz_patchme[1]; - irqsz_patchme[0] |= ((i == SMP_CACHE_BYTES) ? SMP_CACHE_BYTES_SHIFT : \ - SMP_CACHE_BYTES_SHIFT + 1); - flushi((long)&irqsz_patchme[0]); - } else { - prom_printf("Unexpected size of irq_stat[] elements\n"); - prom_halt(); - } -#endif /* Work out if we are starfire early on */ check_if_starfire(); diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h index cc7198aaac5..9a3a81f1cc5 100644 --- a/include/asm-sparc64/cpudata.h +++ b/include/asm-sparc64/cpudata.h @@ -1,6 +1,6 @@ /* cpudata.h: Per-cpu parameters. * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) + * Copyright (C) 2003, 2005 David S. Miller (davem@redhat.com) */ #ifndef _SPARC64_CPUDATA_H @@ -10,7 +10,7 @@ typedef struct { /* Dcache line 1 */ - unsigned int __pad0; /* bh_count moved to irq_stat for consistency. KAO */ + unsigned int __softirq_pending; /* must be 1st, see rtrap.S */ unsigned int multiplier; unsigned int counter; unsigned int idle_volume; diff --git a/include/asm-sparc64/hardirq.h b/include/asm-sparc64/hardirq.h index d6db1aed764..f0cf71376ec 100644 --- a/include/asm-sparc64/hardirq.h +++ b/include/asm-sparc64/hardirq.h @@ -1,22 +1,16 @@ /* hardirq.h: 64-bit Sparc hard IRQ support. * - * Copyright (C) 1997, 1998 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1997, 1998, 2005 David S. Miller (davem@davemloft.net) */ #ifndef __SPARC64_HARDIRQ_H #define __SPARC64_HARDIRQ_H -#include <linux/config.h> -#include <linux/threads.h> -#include <linux/spinlock.h> -#include <linux/cache.h> +#include <asm/cpudata.h> -/* rtrap.S is sensitive to the offsets of these fields */ -typedef struct { - unsigned int __softirq_pending; -} ____cacheline_aligned irq_cpustat_t; - -#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ +#define __ARCH_IRQ_STAT +#define local_softirq_pending() \ + (local_cpu_data().__softirq_pending) #define HARDIRQ_BITS 8 |