ACPI: disable lower idle C-states across suspend/resume

[sfrench/cifs-2.6.git] / include / acpi / processor.h

diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 916c0102db5be85430791c1b5c575cbee888be98..99934a999e6651e904bc23310d7c36a17153f05f 100644 (file)
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -18,9 +18,11 @@
 
 #define ACPI_PDC_REVISION_ID           0x1
 
-#define ACPI_PSD_REV0_REVISION         0 /* Support for _PSD as in ACPI 3.0 */
+#define ACPI_PSD_REV0_REVISION         0       /* Support for _PSD as in ACPI 3.0 */
 #define ACPI_PSD_REV0_ENTRIES          5
 
+#define ACPI_TSD_REV0_REVISION         0       /* Support for _PSD as in ACPI 3.0 */
+#define ACPI_TSD_REV0_ENTRIES          5
 /*
  * Types of coordination defined in ACPI 3.0. Same macros can be used across
  * P, C and T states
@@ -125,17 +127,53 @@ struct acpi_processor_performance {
 
 /* Throttling Control */
 
+struct acpi_tsd_package {
+       acpi_integer num_entries;
+       acpi_integer revision;
+       acpi_integer domain;
+       acpi_integer coord_type;
+       acpi_integer num_processors;
+} __attribute__ ((packed));
+
+struct acpi_ptc_register {
+       u8 descriptor;
+       u16 length;
+       u8 space_id;
+       u8 bit_width;
+       u8 bit_offset;
+       u8 reserved;
+       u64 address;
+} __attribute__ ((packed));
+
+struct acpi_processor_tx_tss {
+       acpi_integer freqpercentage;    /* */
+       acpi_integer power;     /* milliWatts */
+       acpi_integer transition_latency;        /* microseconds */
+       acpi_integer control;   /* control value */
+       acpi_integer status;    /* success indicator */
+};
 struct acpi_processor_tx {
        u16 power;
        u16 performance;
 };
 
+struct acpi_processor;
 struct acpi_processor_throttling {
-       int state;
+       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_tx_tss *states_tss;
+       struct acpi_tsd_package domain_info;
+       cpumask_t shared_cpu_map;
+       int (*acpi_processor_get_throttling) (struct acpi_processor * pr);
+       int (*acpi_processor_set_throttling) (struct acpi_processor * pr,
+                                             int state);
+
        u32 address;
        u8 duty_offset;
        u8 duty_width;
-       int state_count;
        struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
 };
 
@@ -169,6 +207,9 @@ struct acpi_processor {
        u32 id;
        u32 pblk;
        int performance_platform_limit;
+       int throttling_platform_limit;
+       /* 0 - states 0..n-th state available */
+
        struct acpi_processor_flags flags;
        struct acpi_processor_power power;
        struct acpi_processor_performance *performance;
@@ -189,8 +230,9 @@ struct acpi_processor_errata {
        } piix4;
 };
 
-extern int acpi_processor_preregister_performance(
-               struct acpi_processor_performance **performance);
+extern int acpi_processor_preregister_performance(struct
+                                                 acpi_processor_performance
+                                                 *performance);
 
 extern int acpi_processor_register_performance(struct acpi_processor_performance
                                               *performance, unsigned int cpu);
@@ -213,7 +255,8 @@ void arch_acpi_processor_init_pdc(struct acpi_processor *pr);
 void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
                                        unsigned int cpu);
 int acpi_processor_ffh_cstate_probe(unsigned int cpu,
-               struct acpi_processor_cx *cx, struct acpi_power_register *reg);
+                                   struct acpi_processor_cx *cx,
+                                   struct acpi_power_register *reg);
 void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cstate);
 #else
 static inline void acpi_processor_power_init_bm_check(struct
@@ -224,12 +267,14 @@ static inline void acpi_processor_power_init_bm_check(struct
        return;
 }
 static inline int acpi_processor_ffh_cstate_probe(unsigned int cpu,
-               struct acpi_processor_cx *cx, struct acpi_power_register *reg)
+                                                 struct acpi_processor_cx *cx,
+                                                 struct acpi_power_register
+                                                 *reg)
 {
        return -1;
 }
-static inline void acpi_processor_ffh_cstate_enter(
-               struct acpi_processor_cx *cstate)
+static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
+                                                  *cstate)
 {
        return;
 }
@@ -266,7 +311,7 @@ static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
 
 /* 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);
+extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
 extern struct file_operations acpi_processor_throttling_fops;
 
 /* in processor_idle.c */
@@ -275,6 +320,8 @@ int acpi_processor_power_init(struct acpi_processor *pr,
 int acpi_processor_cst_has_changed(struct acpi_processor *pr);
 int acpi_processor_power_exit(struct acpi_processor *pr,
                              struct acpi_device *device);
+int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);
+int acpi_processor_resume(struct acpi_device * device);
 
 /* in processor_thermal.c */
 int acpi_processor_get_limit_info(struct acpi_processor *pr);