diff options
| author | Mike Travis <travis@sgi.com> | 2007-10-19 20:35:04 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-19 20:35:04 +0200 |
| commit | 92cb7612aee39642d109b8d935ad265e602c0563 (patch) | |
| tree | 307f4183226f52418bd6842b5d970f03524ad1c1 /arch/x86/kernel/microcode.c | |
| parent | f1df280f53d7c3ce8613a3b25d1efe009b9860dd (diff) | |
x86: convert cpuinfo_x86 array to a per_cpu array
cpu_data is currently an array defined using NR_CPUS. This means that
we overallocate since we will rarely really use maximum configured cpus.
When NR_CPU count is raised to 4096 the size of cpu_data becomes
3,145,728 bytes.
These changes were adopted from the sparc64 (and ia64) code. An
additional field was added to cpuinfo_x86 to be a non-ambiguous cpu
index. This corresponds to the index into a cpumask_t as well as the
per_cpu index. It's used in various places like show_cpuinfo().
cpu_data is defined to be the boot_cpu_data structure for the NON-SMP
case.
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/microcode.c')
| -rw-r--r-- | arch/x86/kernel/microcode.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c index 09cf7811035..09c315214a5 100644 --- a/arch/x86/kernel/microcode.c +++ b/arch/x86/kernel/microcode.c @@ -132,7 +132,7 @@ static struct ucode_cpu_info { static void collect_cpu_info(int cpu_num) { - struct cpuinfo_x86 *c = cpu_data + cpu_num; + struct cpuinfo_x86 *c = &cpu_data(cpu_num); struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; unsigned int val[2]; @@ -522,7 +522,7 @@ static struct platform_device *microcode_pdev; static int cpu_request_microcode(int cpu) { char name[30]; - struct cpuinfo_x86 *c = cpu_data + cpu; + struct cpuinfo_x86 *c = &cpu_data(cpu); const struct firmware *firmware; void *buf; unsigned long size; @@ -570,7 +570,7 @@ static int cpu_request_microcode(int cpu) static int apply_microcode_check_cpu(int cpu) { - struct cpuinfo_x86 *c = cpu_data + cpu; + struct cpuinfo_x86 *c = &cpu_data(cpu); struct ucode_cpu_info *uci = ucode_cpu_info + cpu; cpumask_t old; unsigned int val[2]; |