58 lines
2.1 KiB
Plaintext
58 lines
2.1 KiB
Plaintext
|
From: jbeulich@novell.com
|
||
|
|
Subject: make /proc/cpuinfo track CPU speed
|
||
|
|
Patch-mainline: obsolete
|
||
|
|
|
||
|
|
--- head-2010-03-15.orig/arch/x86/kernel/acpi/processor_extcntl_xen.c 2010-03-16 10:37:21.000000000 +0100
|
||
|
|
+++ head-2010-03-15/arch/x86/kernel/acpi/processor_extcntl_xen.c 2010-03-16 10:42:20.000000000 +0100
|
||
|
|
@@ -206,3 +206,14 @@ void arch_acpi_processor_init_extcntl(co
|
||
|
|
*ops = &xen_extcntl_ops;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(arch_acpi_processor_init_extcntl);
|
||
|
|
+
|
||
|
|
+unsigned int cpufreq_quick_get(unsigned int cpu)
|
||
|
|
+{
|
||
|
|
+ xen_platform_op_t op = {
|
||
|
|
+ .cmd = XENPF_get_cpu_freq,
|
||
|
|
+ .interface_version = XENPF_INTERFACE_VERSION,
|
||
|
|
+ .u.get_cpu_freq.vcpu = cpu
|
||
|
|
+ };
|
||
|
|
+
|
||
|
|
+ return HYPERVISOR_platform_op(&op) == 0 ? op.u.get_cpu_freq.freq : 0;
|
||
|
|
+}
|
||
|
|
--- head-2010-03-15.orig/include/linux/cpufreq.h 2010-03-16 10:34:57.000000000 +0100
|
||
|
|
+++ head-2010-03-15/include/linux/cpufreq.h 2010-01-25 13:46:23.000000000 +0100
|
||
|
|
@@ -303,7 +303,7 @@ static inline unsigned int cpufreq_get(u
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it */
|
||
|
|
-#ifdef CONFIG_CPU_FREQ
|
||
|
|
+#if defined(CONFIG_CPU_FREQ) || defined(CONFIG_PROCESSOR_EXTERNAL_CONTROL)
|
||
|
|
unsigned int cpufreq_quick_get(unsigned int cpu);
|
||
|
|
#else
|
||
|
|
static inline unsigned int cpufreq_quick_get(unsigned int cpu)
|
||
|
|
--- head-2010-03-15.orig/include/xen/interface/platform.h 2010-01-04 11:56:34.000000000 +0100
|
||
|
|
+++ head-2010-03-15/include/xen/interface/platform.h 2010-01-25 13:46:23.000000000 +0100
|
||
|
|
@@ -355,6 +355,14 @@ struct xenpf_mem_hotadd
|
||
|
|
uint32_t flags;
|
||
|
|
};
|
||
|
|
|
||
|
|
+#define XENPF_get_cpu_freq ('N' << 24)
|
||
|
|
+struct xenpf_get_cpu_freq {
|
||
|
|
+ /* IN variables */
|
||
|
|
+ uint32_t vcpu;
|
||
|
|
+ /* OUT variables */
|
||
|
|
+ uint32_t freq; /* in kHz */
|
||
|
|
+};
|
||
|
|
+
|
||
|
|
struct xen_platform_op {
|
||
|
|
uint32_t cmd;
|
||
|
|
uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
|
||
|
|
@@ -374,6 +382,7 @@ struct xen_platform_op {
|
||
|
|
struct xenpf_cpu_ol cpu_ol;
|
||
|
|
struct xenpf_cpu_hotadd cpu_add;
|
||
|
|
struct xenpf_mem_hotadd mem_add;
|
||
|
|
+ struct xenpf_get_cpu_freq get_cpu_freq;
|
||
|
|
uint8_t pad[128];
|
||
|
|
} u;
|
||
|
|
};
|