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authorMike Travis <travis@sgi.com>2007-10-19 20:35:04 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-19 20:35:04 +0200
commit92cb7612aee39642d109b8d935ad265e602c0563 (patch)
tree307f4183226f52418bd6842b5d970f03524ad1c1 /drivers/hwmon
parentf1df280f53d7c3ce8613a3b25d1efe009b9860dd (diff)
downloadop-kernel-dev-92cb7612aee39642d109b8d935ad265e602c0563.zip
op-kernel-dev-92cb7612aee39642d109b8d935ad265e602c0563.tar.gz
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 'drivers/hwmon')
-rw-r--r--drivers/hwmon/coretemp.c6
-rw-r--r--drivers/hwmon/hwmon-vid.c2
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 6f66551..5c82ec7 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -150,7 +150,7 @@ static struct coretemp_data *coretemp_update_device(struct device *dev)
static int __devinit coretemp_probe(struct platform_device *pdev)
{
struct coretemp_data *data;
- struct cpuinfo_x86 *c = &(cpu_data)[pdev->id];
+ struct cpuinfo_x86 *c = &cpu_data(pdev->id);
int err;
u32 eax, edx;
@@ -359,7 +359,7 @@ static int __init coretemp_init(void)
struct pdev_entry *p, *n;
/* quick check if we run Intel */
- if (cpu_data[0].x86_vendor != X86_VENDOR_INTEL)
+ if (cpu_data(0).x86_vendor != X86_VENDOR_INTEL)
goto exit;
err = platform_driver_register(&coretemp_driver);
@@ -367,7 +367,7 @@ static int __init coretemp_init(void)
goto exit;
for_each_online_cpu(i) {
- struct cpuinfo_x86 *c = &(cpu_data)[i];
+ struct cpuinfo_x86 *c = &cpu_data(i);
/* check if family 6, models e, f, 16 */
if ((c->cpuid_level < 0) || (c->x86 != 0x6) ||
diff --git a/drivers/hwmon/hwmon-vid.c b/drivers/hwmon/hwmon-vid.c
index f17e771..3330667 100644
--- a/drivers/hwmon/hwmon-vid.c
+++ b/drivers/hwmon/hwmon-vid.c
@@ -200,7 +200,7 @@ static u8 find_vrm(u8 eff_family, u8 eff_model, u8 eff_stepping, u8 vendor)
u8 vid_which_vrm(void)
{
- struct cpuinfo_x86 *c = cpu_data;
+ struct cpuinfo_x86 *c = &cpu_data(0);
u32 eax;
u8 eff_family, eff_model, eff_stepping, vrm_ret;
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