diff options
Diffstat (limited to 'include/acpi/processor.h')
-rw-r--r-- | include/acpi/processor.h | 238 |
1 files changed, 122 insertions, 116 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 50cfea4ff6ca..7a00d5089de9 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h | |||
@@ -23,45 +23,44 @@ | |||
23 | struct acpi_processor_cx; | 23 | struct acpi_processor_cx; |
24 | 24 | ||
25 | struct acpi_power_register { | 25 | struct acpi_power_register { |
26 | u8 descriptor; | 26 | u8 descriptor; |
27 | u16 length; | 27 | u16 length; |
28 | u8 space_id; | 28 | u8 space_id; |
29 | u8 bit_width; | 29 | u8 bit_width; |
30 | u8 bit_offset; | 30 | u8 bit_offset; |
31 | u8 reserved; | 31 | u8 reserved; |
32 | u64 address; | 32 | u64 address; |
33 | } __attribute__ ((packed)); | 33 | } __attribute__ ((packed)); |
34 | 34 | ||
35 | |||
36 | struct acpi_processor_cx_policy { | 35 | struct acpi_processor_cx_policy { |
37 | u32 count; | 36 | u32 count; |
38 | struct acpi_processor_cx *state; | 37 | struct acpi_processor_cx *state; |
39 | struct { | 38 | struct { |
40 | u32 time; | 39 | u32 time; |
41 | u32 ticks; | 40 | u32 ticks; |
42 | u32 count; | 41 | u32 count; |
43 | u32 bm; | 42 | u32 bm; |
44 | } threshold; | 43 | } threshold; |
45 | }; | 44 | }; |
46 | 45 | ||
47 | struct acpi_processor_cx { | 46 | struct acpi_processor_cx { |
48 | u8 valid; | 47 | u8 valid; |
49 | u8 type; | 48 | u8 type; |
50 | u32 address; | 49 | u32 address; |
51 | u32 latency; | 50 | u32 latency; |
52 | u32 latency_ticks; | 51 | u32 latency_ticks; |
53 | u32 power; | 52 | u32 power; |
54 | u32 usage; | 53 | u32 usage; |
55 | struct acpi_processor_cx_policy promotion; | 54 | struct acpi_processor_cx_policy promotion; |
56 | struct acpi_processor_cx_policy demotion; | 55 | struct acpi_processor_cx_policy demotion; |
57 | }; | 56 | }; |
58 | 57 | ||
59 | struct acpi_processor_power { | 58 | struct acpi_processor_power { |
60 | struct acpi_processor_cx *state; | 59 | struct acpi_processor_cx *state; |
61 | unsigned long bm_check_timestamp; | 60 | unsigned long bm_check_timestamp; |
62 | u32 default_state; | 61 | u32 default_state; |
63 | u32 bm_activity; | 62 | u32 bm_activity; |
64 | int count; | 63 | int count; |
65 | struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER]; | 64 | struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER]; |
66 | 65 | ||
67 | /* the _PDC objects passed by the driver, if any */ | 66 | /* the _PDC objects passed by the driver, if any */ |
@@ -71,85 +70,82 @@ struct acpi_processor_power { | |||
71 | /* Performance Management */ | 70 | /* Performance Management */ |
72 | 71 | ||
73 | struct acpi_pct_register { | 72 | struct acpi_pct_register { |
74 | u8 descriptor; | 73 | u8 descriptor; |
75 | u16 length; | 74 | u16 length; |
76 | u8 space_id; | 75 | u8 space_id; |
77 | u8 bit_width; | 76 | u8 bit_width; |
78 | u8 bit_offset; | 77 | u8 bit_offset; |
79 | u8 reserved; | 78 | u8 reserved; |
80 | u64 address; | 79 | u64 address; |
81 | } __attribute__ ((packed)); | 80 | } __attribute__ ((packed)); |
82 | 81 | ||
83 | struct acpi_processor_px { | 82 | struct acpi_processor_px { |
84 | acpi_integer core_frequency; /* megahertz */ | 83 | acpi_integer core_frequency; /* megahertz */ |
85 | acpi_integer power; /* milliWatts */ | 84 | acpi_integer power; /* milliWatts */ |
86 | acpi_integer transition_latency; /* microseconds */ | 85 | acpi_integer transition_latency; /* microseconds */ |
87 | acpi_integer bus_master_latency; /* microseconds */ | 86 | acpi_integer bus_master_latency; /* microseconds */ |
88 | acpi_integer control; /* control value */ | 87 | acpi_integer control; /* control value */ |
89 | acpi_integer status; /* success indicator */ | 88 | acpi_integer status; /* success indicator */ |
90 | }; | 89 | }; |
91 | 90 | ||
92 | struct acpi_processor_performance { | 91 | struct acpi_processor_performance { |
93 | unsigned int state; | 92 | unsigned int state; |
94 | unsigned int platform_limit; | 93 | unsigned int platform_limit; |
95 | struct acpi_pct_register control_register; | 94 | struct acpi_pct_register control_register; |
96 | struct acpi_pct_register status_register; | 95 | struct acpi_pct_register status_register; |
97 | unsigned int state_count; | 96 | unsigned int state_count; |
98 | struct acpi_processor_px *states; | 97 | struct acpi_processor_px *states; |
99 | 98 | ||
100 | /* the _PDC objects passed by the driver, if any */ | 99 | /* the _PDC objects passed by the driver, if any */ |
101 | struct acpi_object_list *pdc; | 100 | struct acpi_object_list *pdc; |
102 | }; | 101 | }; |
103 | 102 | ||
104 | |||
105 | |||
106 | /* Throttling Control */ | 103 | /* Throttling Control */ |
107 | 104 | ||
108 | struct acpi_processor_tx { | 105 | struct acpi_processor_tx { |
109 | u16 power; | 106 | u16 power; |
110 | u16 performance; | 107 | u16 performance; |
111 | }; | 108 | }; |
112 | 109 | ||
113 | struct acpi_processor_throttling { | 110 | struct acpi_processor_throttling { |
114 | int state; | 111 | int state; |
115 | u32 address; | 112 | u32 address; |
116 | u8 duty_offset; | 113 | u8 duty_offset; |
117 | u8 duty_width; | 114 | u8 duty_width; |
118 | int state_count; | 115 | int state_count; |
119 | struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING]; | 116 | struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING]; |
120 | }; | 117 | }; |
121 | 118 | ||
122 | /* Limit Interface */ | 119 | /* Limit Interface */ |
123 | 120 | ||
124 | struct acpi_processor_lx { | 121 | struct acpi_processor_lx { |
125 | int px; /* performace state */ | 122 | int px; /* performace state */ |
126 | int tx; /* throttle level */ | 123 | int tx; /* throttle level */ |
127 | }; | 124 | }; |
128 | 125 | ||
129 | struct acpi_processor_limit { | 126 | struct acpi_processor_limit { |
130 | struct acpi_processor_lx state; /* current limit */ | 127 | struct acpi_processor_lx state; /* current limit */ |
131 | struct acpi_processor_lx thermal; /* thermal limit */ | 128 | struct acpi_processor_lx thermal; /* thermal limit */ |
132 | struct acpi_processor_lx user; /* user limit */ | 129 | struct acpi_processor_lx user; /* user limit */ |
133 | }; | 130 | }; |
134 | 131 | ||
135 | |||
136 | struct acpi_processor_flags { | 132 | struct acpi_processor_flags { |
137 | u8 power:1; | 133 | u8 power:1; |
138 | u8 performance:1; | 134 | u8 performance:1; |
139 | u8 throttling:1; | 135 | u8 throttling:1; |
140 | u8 limit:1; | 136 | u8 limit:1; |
141 | u8 bm_control:1; | 137 | u8 bm_control:1; |
142 | u8 bm_check:1; | 138 | u8 bm_check:1; |
143 | u8 has_cst:1; | 139 | u8 has_cst:1; |
144 | u8 power_setup_done:1; | 140 | u8 power_setup_done:1; |
145 | }; | 141 | }; |
146 | 142 | ||
147 | struct acpi_processor { | 143 | struct acpi_processor { |
148 | acpi_handle handle; | 144 | acpi_handle handle; |
149 | u32 acpi_id; | 145 | u32 acpi_id; |
150 | u32 id; | 146 | u32 id; |
151 | u32 pblk; | 147 | u32 pblk; |
152 | int performance_platform_limit; | 148 | int performance_platform_limit; |
153 | struct acpi_processor_flags flags; | 149 | struct acpi_processor_flags flags; |
154 | struct acpi_processor_power power; | 150 | struct acpi_processor_power power; |
155 | struct acpi_processor_performance *performance; | 151 | struct acpi_processor_performance *performance; |
@@ -158,50 +154,49 @@ struct acpi_processor { | |||
158 | }; | 154 | }; |
159 | 155 | ||
160 | struct acpi_processor_errata { | 156 | struct acpi_processor_errata { |
161 | u8 smp; | 157 | u8 smp; |
162 | struct { | 158 | struct { |
163 | u8 throttle:1; | 159 | u8 throttle:1; |
164 | u8 fdma:1; | 160 | u8 fdma:1; |
165 | u8 reserved:6; | 161 | u8 reserved:6; |
166 | u32 bmisx; | 162 | u32 bmisx; |
167 | } piix4; | 163 | } piix4; |
168 | }; | 164 | }; |
169 | 165 | ||
170 | extern int acpi_processor_register_performance ( | 166 | extern int acpi_processor_register_performance(struct acpi_processor_performance |
171 | struct acpi_processor_performance * performance, | 167 | *performance, unsigned int cpu); |
172 | unsigned int cpu); | 168 | extern void acpi_processor_unregister_performance(struct |
173 | extern void acpi_processor_unregister_performance ( | 169 | acpi_processor_performance |
174 | struct acpi_processor_performance * performance, | 170 | *performance, |
175 | unsigned int cpu); | 171 | unsigned int cpu); |
176 | 172 | ||
177 | /* note: this locks both the calling module and the processor module | 173 | /* note: this locks both the calling module and the processor module |
178 | if a _PPC object exists, rmmod is disallowed then */ | 174 | if a _PPC object exists, rmmod is disallowed then */ |
179 | int acpi_processor_notify_smm(struct module *calling_module); | 175 | int acpi_processor_notify_smm(struct module *calling_module); |
180 | 176 | ||
181 | |||
182 | |||
183 | /* for communication between multiple parts of the processor kernel module */ | 177 | /* for communication between multiple parts of the processor kernel module */ |
184 | extern struct acpi_processor *processors[NR_CPUS]; | 178 | extern struct acpi_processor *processors[NR_CPUS]; |
185 | extern struct acpi_processor_errata errata; | 179 | extern struct acpi_processor_errata errata; |
186 | 180 | ||
187 | int acpi_processor_set_pdc(struct acpi_processor *pr, | 181 | int acpi_processor_set_pdc(struct acpi_processor *pr, |
188 | struct acpi_object_list *pdc_in); | 182 | struct acpi_object_list *pdc_in); |
189 | 183 | ||
190 | #ifdef ARCH_HAS_POWER_PDC_INIT | 184 | #ifdef ARCH_HAS_POWER_PDC_INIT |
191 | void acpi_processor_power_init_pdc(struct acpi_processor_power *pow, | 185 | void acpi_processor_power_init_pdc(struct acpi_processor_power *pow, |
192 | unsigned int cpu); | 186 | unsigned int cpu); |
193 | void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags, | 187 | void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags, |
194 | unsigned int cpu); | 188 | unsigned int cpu); |
195 | #else | 189 | #else |
196 | static inline void acpi_processor_power_init_pdc( | 190 | static inline void acpi_processor_power_init_pdc(struct acpi_processor_power |
197 | struct acpi_processor_power *pow, unsigned int cpu) | 191 | *pow, unsigned int cpu) |
198 | { | 192 | { |
199 | pow->pdc = NULL; | 193 | pow->pdc = NULL; |
200 | return; | 194 | return; |
201 | } | 195 | } |
202 | 196 | ||
203 | static inline void acpi_processor_power_init_bm_check( | 197 | static inline void acpi_processor_power_init_bm_check(struct |
204 | struct acpi_processor_flags *flags, unsigned int cpu) | 198 | acpi_processor_flags |
199 | *flags, unsigned int cpu) | ||
205 | { | 200 | { |
206 | flags->bm_check = 1; | 201 | flags->bm_check = 1; |
207 | return; | 202 | return; |
@@ -215,51 +210,62 @@ void acpi_processor_ppc_init(void); | |||
215 | void acpi_processor_ppc_exit(void); | 210 | void acpi_processor_ppc_exit(void); |
216 | int acpi_processor_ppc_has_changed(struct acpi_processor *pr); | 211 | int acpi_processor_ppc_has_changed(struct acpi_processor *pr); |
217 | #else | 212 | #else |
218 | static inline void acpi_processor_ppc_init(void) { return; } | 213 | static inline void acpi_processor_ppc_init(void) |
219 | static inline void acpi_processor_ppc_exit(void) { return; } | 214 | { |
220 | static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr) { | 215 | return; |
216 | } | ||
217 | static inline void acpi_processor_ppc_exit(void) | ||
218 | { | ||
219 | return; | ||
220 | } | ||
221 | static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr) | ||
222 | { | ||
221 | static unsigned int printout = 1; | 223 | static unsigned int printout = 1; |
222 | if (printout) { | 224 | if (printout) { |
223 | printk(KERN_WARNING "Warning: Processor Platform Limit event detected, but not handled.\n"); | 225 | printk(KERN_WARNING |
224 | printk(KERN_WARNING "Consider compiling CPUfreq support into your kernel.\n"); | 226 | "Warning: Processor Platform Limit event detected, but not handled.\n"); |
227 | printk(KERN_WARNING | ||
228 | "Consider compiling CPUfreq support into your kernel.\n"); | ||
225 | printout = 0; | 229 | printout = 0; |
226 | } | 230 | } |
227 | return 0; | 231 | return 0; |
228 | } | 232 | } |
229 | #endif /* CONFIG_CPU_FREQ */ | 233 | #endif /* CONFIG_CPU_FREQ */ |
230 | 234 | ||
231 | /* in processor_throttling.c */ | 235 | /* in processor_throttling.c */ |
232 | int acpi_processor_get_throttling_info (struct acpi_processor *pr); | 236 | int acpi_processor_get_throttling_info(struct acpi_processor *pr); |
233 | int acpi_processor_set_throttling (struct acpi_processor *pr, int state); | 237 | int acpi_processor_set_throttling(struct acpi_processor *pr, int state); |
234 | ssize_t acpi_processor_write_throttling ( | 238 | ssize_t acpi_processor_write_throttling(struct file *file, |
235 | struct file *file, | 239 | const char __user * buffer, |
236 | const char __user *buffer, | 240 | size_t count, loff_t * data); |
237 | size_t count, | ||
238 | loff_t *data); | ||
239 | extern struct file_operations acpi_processor_throttling_fops; | 241 | extern struct file_operations acpi_processor_throttling_fops; |
240 | 242 | ||
241 | /* in processor_idle.c */ | 243 | /* in processor_idle.c */ |
242 | int acpi_processor_power_init(struct acpi_processor *pr, struct acpi_device *device); | 244 | int acpi_processor_power_init(struct acpi_processor *pr, |
243 | int acpi_processor_cst_has_changed (struct acpi_processor *pr); | 245 | struct acpi_device *device); |
244 | int acpi_processor_power_exit(struct acpi_processor *pr, struct acpi_device *device); | 246 | int acpi_processor_cst_has_changed(struct acpi_processor *pr); |
245 | 247 | int acpi_processor_power_exit(struct acpi_processor *pr, | |
248 | struct acpi_device *device); | ||
246 | 249 | ||
247 | /* in processor_thermal.c */ | 250 | /* in processor_thermal.c */ |
248 | int acpi_processor_get_limit_info (struct acpi_processor *pr); | 251 | int acpi_processor_get_limit_info(struct acpi_processor *pr); |
249 | ssize_t acpi_processor_write_limit ( | 252 | ssize_t acpi_processor_write_limit(struct file *file, |
250 | struct file *file, | 253 | const char __user * buffer, |
251 | const char __user *buffer, | 254 | size_t count, loff_t * data); |
252 | size_t count, | ||
253 | loff_t *data); | ||
254 | extern struct file_operations acpi_processor_limit_fops; | 255 | extern struct file_operations acpi_processor_limit_fops; |
255 | 256 | ||
256 | #ifdef CONFIG_CPU_FREQ | 257 | #ifdef CONFIG_CPU_FREQ |
257 | void acpi_thermal_cpufreq_init(void); | 258 | void acpi_thermal_cpufreq_init(void); |
258 | void acpi_thermal_cpufreq_exit(void); | 259 | void acpi_thermal_cpufreq_exit(void); |
259 | #else | 260 | #else |
260 | static inline void acpi_thermal_cpufreq_init(void) { return; } | 261 | static inline void acpi_thermal_cpufreq_init(void) |
261 | static inline void acpi_thermal_cpufreq_exit(void) { return; } | 262 | { |
263 | return; | ||
264 | } | ||
265 | static inline void acpi_thermal_cpufreq_exit(void) | ||
266 | { | ||
267 | return; | ||
268 | } | ||
262 | #endif | 269 | #endif |
263 | 270 | ||
264 | |||
265 | #endif | 271 | #endif |