Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
new file mode 100644
index 0000000..2f50a5b
--- /dev/null
+++ b/include/acpi/processor.h
@@ -0,0 +1,235 @@
+#ifndef __ACPI_PROCESSOR_H
+#define __ACPI_PROCESSOR_H
+
+#include <linux/kernel.h>
+#include <linux/config.h>
+
+#define ACPI_PROCESSOR_BUSY_METRIC 10
+
+#define ACPI_PROCESSOR_MAX_POWER 8
+#define ACPI_PROCESSOR_MAX_C2_LATENCY 100
+#define ACPI_PROCESSOR_MAX_C3_LATENCY 1000
+
+#define ACPI_PROCESSOR_MAX_THROTTLING 16
+#define ACPI_PROCESSOR_MAX_THROTTLE 250 /* 25% */
+#define ACPI_PROCESSOR_MAX_DUTY_WIDTH 4
+
+/* Power Management */
+
+struct acpi_processor_cx;
+
+struct acpi_power_register {
+ u8 descriptor;
+ u16 length;
+ u8 space_id;
+ u8 bit_width;
+ u8 bit_offset;
+ u8 reserved;
+ u64 address;
+} __attribute__ ((packed));
+
+
+struct acpi_processor_cx_policy {
+ u32 count;
+ struct acpi_processor_cx *state;
+ struct {
+ u32 time;
+ u32 ticks;
+ u32 count;
+ u32 bm;
+ } threshold;
+};
+
+struct acpi_processor_cx {
+ u8 valid;
+ u8 type;
+ u32 address;
+ u32 latency;
+ u32 latency_ticks;
+ u32 power;
+ u32 usage;
+ struct acpi_processor_cx_policy promotion;
+ struct acpi_processor_cx_policy demotion;
+};
+
+struct acpi_processor_power {
+ struct acpi_processor_cx *state;
+ unsigned long bm_check_timestamp;
+ u32 default_state;
+ u32 bm_activity;
+ int count;
+ struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
+};
+
+/* Performance Management */
+
+struct acpi_pct_register {
+ u8 descriptor;
+ u16 length;
+ u8 space_id;
+ u8 bit_width;
+ u8 bit_offset;
+ u8 reserved;
+ u64 address;
+} __attribute__ ((packed));
+
+struct acpi_processor_px {
+ acpi_integer core_frequency; /* megahertz */
+ acpi_integer power; /* milliWatts */
+ acpi_integer transition_latency; /* microseconds */
+ acpi_integer bus_master_latency; /* microseconds */
+ acpi_integer control; /* control value */
+ acpi_integer status; /* success indicator */
+};
+
+#define ACPI_PDC_REVISION_ID 0x1
+
+struct acpi_processor_performance {
+ unsigned int state;
+ unsigned int platform_limit;
+ struct acpi_pct_register control_register;
+ struct acpi_pct_register status_register;
+ unsigned int state_count;
+ struct acpi_processor_px *states;
+
+ /* the _PDC objects passed by the driver, if any */
+ struct acpi_object_list *pdc;
+};
+
+
+
+/* Throttling Control */
+
+struct acpi_processor_tx {
+ u16 power;
+ u16 performance;
+};
+
+struct acpi_processor_throttling {
+ int state;
+ u32 address;
+ u8 duty_offset;
+ u8 duty_width;
+ int state_count;
+ struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
+};
+
+/* Limit Interface */
+
+struct acpi_processor_lx {
+ int px; /* performace state */
+ int tx; /* throttle level */
+};
+
+struct acpi_processor_limit {
+ struct acpi_processor_lx state; /* current limit */
+ struct acpi_processor_lx thermal; /* thermal limit */
+ struct acpi_processor_lx user; /* user limit */
+};
+
+
+struct acpi_processor_flags {
+ u8 power:1;
+ u8 performance:1;
+ u8 throttling:1;
+ u8 limit:1;
+ u8 bm_control:1;
+ u8 bm_check:1;
+ u8 has_cst:1;
+ u8 power_setup_done:1;
+};
+
+struct acpi_processor {
+ acpi_handle handle;
+ u32 acpi_id;
+ u32 id;
+ u32 pblk;
+ int performance_platform_limit;
+ struct acpi_processor_flags flags;
+ struct acpi_processor_power power;
+ struct acpi_processor_performance *performance;
+ struct acpi_processor_throttling throttling;
+ struct acpi_processor_limit limit;
+};
+
+struct acpi_processor_errata {
+ u8 smp;
+ struct {
+ u8 throttle:1;
+ u8 fdma:1;
+ u8 reserved:6;
+ u32 bmisx;
+ } piix4;
+};
+
+extern int acpi_processor_register_performance (
+ struct acpi_processor_performance * performance,
+ unsigned int cpu);
+extern void acpi_processor_unregister_performance (
+ struct acpi_processor_performance * performance,
+ unsigned int cpu);
+
+/* note: this locks both the calling module and the processor module
+ if a _PPC object exists, rmmod is disallowed then */
+int acpi_processor_notify_smm(struct module *calling_module);
+
+
+
+/* for communication between multiple parts of the processor kernel module */
+extern struct acpi_processor *processors[NR_CPUS];
+extern struct acpi_processor_errata errata;
+
+/* in processor_perflib.c */
+#ifdef CONFIG_CPU_FREQ
+void acpi_processor_ppc_init(void);
+void acpi_processor_ppc_exit(void);
+int acpi_processor_ppc_has_changed(struct acpi_processor *pr);
+#else
+static inline void acpi_processor_ppc_init(void) { return; }
+static inline void acpi_processor_ppc_exit(void) { return; }
+static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr) {
+ static unsigned int printout = 1;
+ if (printout) {
+ printk(KERN_WARNING "Warning: Processor Platform Limit event detected, but not handled.\n");
+ printk(KERN_WARNING "Consider compiling CPUfreq support into your kernel.\n");
+ printout = 0;
+ }
+ return 0;
+}
+#endif /* CONFIG_CPU_FREQ */
+
+/* in processor_throttling.c */
+int acpi_processor_get_throttling_info (struct acpi_processor *pr);
+int acpi_processor_set_throttling (struct acpi_processor *pr, int state);
+ssize_t acpi_processor_write_throttling (
+ struct file *file,
+ const char __user *buffer,
+ size_t count,
+ loff_t *data);
+extern struct file_operations acpi_processor_throttling_fops;
+
+/* in processor_idle.c */
+int acpi_processor_power_init(struct acpi_processor *pr, struct acpi_device *device);
+int acpi_processor_cst_has_changed (struct acpi_processor *pr);
+int acpi_processor_power_exit(struct acpi_processor *pr, struct acpi_device *device);
+
+
+/* in processor_thermal.c */
+int acpi_processor_get_limit_info (struct acpi_processor *pr);
+ssize_t acpi_processor_write_limit (
+ struct file *file,
+ const char __user *buffer,
+ size_t count,
+ loff_t *data);
+extern struct file_operations acpi_processor_limit_fops;
+
+#ifdef CONFIG_CPU_FREQ
+void acpi_thermal_cpufreq_init(void);
+void acpi_thermal_cpufreq_exit(void);
+#else
+static inline void acpi_thermal_cpufreq_init(void) { return; }
+static inline void acpi_thermal_cpufreq_exit(void) { return; }
+#endif
+
+
+#endif