diff options
Diffstat (limited to 'arch/arm/mach-omap2/powerdomain.h')
| -rw-r--r-- | arch/arm/mach-omap2/powerdomain.h | 77 |
1 files changed, 70 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h index d23d979..59aef2b 100644 --- a/arch/arm/mach-omap2/powerdomain.h +++ b/arch/arm/mach-omap2/powerdomain.h @@ -19,11 +19,16 @@ #include <linux/types.h> #include <linux/list.h> +#include <linux/plist.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> #include <linux/atomic.h> #include <plat/cpu.h> +#include "voltage.h" + /* Powerdomain basic power states */ #define PWRDM_POWER_OFF 0x0 #define PWRDM_POWER_RET 0x1 @@ -43,6 +48,18 @@ #define PWRSTS_RET_ON (PWRSTS_RET | PWRSTS_ON) #define PWRSTS_OFF_RET_ON (PWRSTS_OFF_RET | PWRSTS_ON) +#define PWRSTS_RET_INA_ON ((1 << PWRDM_POWER_RET) | \ + (1 << PWRDM_POWER_INACTIVE) | \ + (1 << PWRDM_POWER_ON)) + +#define PWRSTS_OFF_INA_ON ((1 << PWRDM_POWER_OFF) | \ + (1 << PWRDM_POWER_INACTIVE) | \ + (1 << PWRDM_POWER_ON)) + +#define PWRSTS_OFF_RET_INA_ON ((1 << PWRDM_POWER_OFF) | \ + (1 << PWRDM_POWER_RET) | \ + (1 << PWRDM_POWER_INACTIVE) | \ + (1 << PWRDM_POWER_ON)) /* Powerdomain flags */ #define PWRDM_HAS_HDWR_SAR (1 << 0) /* hardware save-and-restore support */ @@ -72,12 +89,33 @@ /* XXX A completely arbitrary number. What is reasonable here? */ #define PWRDM_TRANSITION_BAILOUT 100000 +/* Powerdomain functional power states */ +#define PWRDM_FUNC_PWRST_OFF 0x0 +#define PWRDM_FUNC_PWRST_OSWR 0x1 +#define PWRDM_FUNC_PWRST_CSWR 0x2 +#define PWRDM_FUNC_PWRST_ON 0x3 + +#define PWRDM_MAX_FUNC_PWRSTS 4 + +#define UNSUP_STATE -1 + struct clockdomain; struct powerdomain; +struct powerdomain_count_stats { + unsigned state[PWRDM_MAX_PWRSTS]; + unsigned ret_logic_off; + unsigned ret_mem_off[PWRDM_MAX_MEM_BANKS]; +}; + +struct powerdomain_time_stats { + s64 state[PWRDM_MAX_PWRSTS]; +}; + /** * struct powerdomain - OMAP powerdomain * @name: Powerdomain name + * @voltdm: voltagedomain containing this powerdomain * @omap_chip: represents the OMAP chip types containing this pwrdm * @prcm_offs: the address offset from CM_BASE/PRM_BASE * @prcm_partition: (OMAP4 only) the PRCM partition ID containing @prcm_offs @@ -89,15 +127,22 @@ struct powerdomain; * @pwrsts_mem_on: Possible memory bank pwrstates when pwrdm in ON * @pwrdm_clkdms: Clockdomains in this powerdomain * @node: list_head linking all powerdomains + * @voltdm_node: list_head linking all powerdomains in a voltagedomain * @state: * @state_counter: * @timer: * @state_timer: - * - * @prcm_partition possible values are defined in mach-omap2/prcm44xx.h. + * @wakeup_lat: Wakeup latencies for possible powerdomain power states + * @wakeuplat_lock: spinlock for plist + * @wakeuplat_dev_list: plist_head linking all devices placing constraint + * @wa * @prcm_partition possible values are defined in mach-omap2/prcm44xx.h. */ struct powerdomain { const char *name; + union { + const char *name; + struct voltagedomain *ptr; + } voltdm; const struct omap_chip_id omap_chip; const s16 prcm_offs; const u8 pwrsts; @@ -109,15 +154,27 @@ struct powerdomain { const u8 prcm_partition; struct clockdomain *pwrdm_clkdms[PWRDM_MAX_CLKDMS]; struct list_head node; + struct list_head voltdm_node; int state; - unsigned state_counter[PWRDM_MAX_PWRSTS]; - unsigned ret_logic_off_counter; - unsigned ret_mem_off_counter[PWRDM_MAX_MEM_BANKS]; + + struct powerdomain_count_stats count; + struct powerdomain_count_stats last_count; #ifdef CONFIG_PM_DEBUG s64 timer; - s64 state_timer[PWRDM_MAX_PWRSTS]; + struct powerdomain_time_stats time; + struct powerdomain_time_stats last_time; #endif + const u32 wakeup_lat[PWRDM_MAX_FUNC_PWRSTS]; + spinlock_t wakeuplat_lock; + struct plist_head wakeuplat_dev_list; + struct mutex wakeuplat_mutex; +}; + +struct wakeuplat_dev_list { + struct device *dev; + unsigned long constraint_us; + struct plist_node node; }; /** @@ -176,6 +233,7 @@ int pwrdm_del_clkdm(struct powerdomain *pwrdm, struct clockdomain *clkdm); int pwrdm_for_each_clkdm(struct powerdomain *pwrdm, int (*fn)(struct powerdomain *pwrdm, struct clockdomain *clkdm)); +struct voltagedomain *pwrdm_get_voltdm(struct powerdomain *pwrdm); int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm); @@ -207,7 +265,7 @@ int pwrdm_clkdm_state_switch(struct clockdomain *clkdm); int pwrdm_pre_transition(void); int pwrdm_post_transition(void); int pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm); -u32 pwrdm_get_context_loss_count(struct powerdomain *pwrdm); +int pwrdm_get_context_loss_count(struct powerdomain *pwrdm); bool pwrdm_can_ever_lose_context(struct powerdomain *pwrdm); extern void omap2xxx_powerdomains_init(void); @@ -226,5 +284,10 @@ extern u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank); extern struct powerdomain wkup_omap2_pwrdm; extern struct powerdomain gfx_omap2_pwrdm; +int pwrdm_wakeuplat_set_constraint(struct powerdomain *pwrdm, + struct device *dev, unsigned long t); +int pwrdm_wakeuplat_release_constraint(struct powerdomain *pwrdm, + struct device *dev); +int pwrdm_wakeuplat_update_pwrst(struct powerdomain *pwrdm); #endif |