diff options
Diffstat (limited to 'gxp-pm.h')
| -rw-r--r-- | gxp-pm.h | 101 |
1 files changed, 65 insertions, 36 deletions
@@ -11,18 +11,7 @@ #include "gxp-internal.h" -#define AUR_DVFS_MIN_RATE 178000 -static const uint aur_power_state2rate[] = { - 0, /* AUR_OFF */ - 178000, /* AUR_UUD */ - 373000, /* AUR_SUD */ - 750000, /* AUR_UD */ - 1160000, /* AUR_NOM */ - 178000, /* AUR_READY */ - 268000, /* AUR_UUD_PLUS */ - 560000, /* AUR_SUD_PLUS */ - 975000, /* AUR_UD_PLUS */ -}; +#define AUR_DVFS_MIN_RATE AUR_UUD_RATE enum aur_power_state { AUR_OFF = 0, @@ -36,6 +25,18 @@ enum aur_power_state { AUR_UD_PLUS = 8, }; +static const uint aur_power_state2rate[] = { + AUR_OFF_RATE, + AUR_UUD_RATE, + AUR_SUD_RATE, + AUR_UD_RATE, + AUR_NOM_RATE, + AUR_READY_RATE, + AUR_UUD_PLUS_RATE, + AUR_SUD_PLUS_RATE, + AUR_UD_PLUS_RATE, +}; + enum aur_memory_power_state { AUR_MEM_UNDEFINED = 0, AUR_MEM_MIN = 1, @@ -91,6 +92,17 @@ struct gxp_req_pm_qos_work { bool using; }; +struct gxp_power_states { + enum aur_power_state power; + enum aur_memory_power_state memory; + bool low_clkmux; +}; + +static const struct gxp_power_states off_states = { AUR_OFF, AUR_MEM_UNDEFINED, + false }; +static const struct gxp_power_states uud_states = { AUR_UUD, AUR_MEM_UNDEFINED, + false }; + struct gxp_power_manager { struct gxp_dev *gxp; struct mutex pm_lock; @@ -107,7 +119,7 @@ struct gxp_power_manager { /* Last requested clock mux state */ bool last_scheduled_low_clkmux; int curr_state; - int curr_memory_state; + int curr_memory_state; /* Note: this state will not be maintained in the MCU mode. */ struct gxp_pm_device_ops *ops; struct gxp_set_acpm_state_work set_acpm_state_work[AUR_NUM_POWER_STATE_WORKER]; @@ -126,15 +138,20 @@ struct gxp_power_manager { /* Max frequency that the thermal driver/ACPM will allow in Hz */ unsigned long thermal_limit; u64 blk_switch_count; + /* PMU AUR_STATUS base address for block status, maybe NULL */ + void __iomem *aur_status; }; /** * gxp_pm_blk_on() - Turn on the power for BLK_AUR * @gxp: The GXP device to turn on * + * Note: For most cases you should use gxp_acquire_wakelock() to ensure the + * device is ready to use, unless you really want to power on the block without + * setting up the device state. + * * Return: * * 0 - BLK ON successfully - * * -ENODEV - Cannot find PM interface */ int gxp_pm_blk_on(struct gxp_dev *gxp); @@ -144,12 +161,19 @@ int gxp_pm_blk_on(struct gxp_dev *gxp); * * Return: * * 0 - BLK OFF successfully - * * -ENODEV - Cannot find PM interface - * * -EBUSY - Wakelock is held, blk is still busy */ int gxp_pm_blk_off(struct gxp_dev *gxp); /** + * gxp_pm_is_blk_down() - Check weather the blk is turned off or not. + * @gxp: The GXP device to check + * + * Return: + * * true - blk is turned off. + */ +bool gxp_pm_is_blk_down(struct gxp_dev *gxp); + +/** * gxp_pm_get_blk_state() - Get the blk power state * @gxp: The GXP device to sample state * @@ -183,11 +207,8 @@ int gxp_pm_core_on(struct gxp_dev *gxp, uint core, bool verbose); * gxp_pm_core_off() - Turn off a core on GXP device * @gxp: The GXP device to operate * @core: The core ID to turn off - * - * Return: - * * 0 - Core off process finished successfully */ -int gxp_pm_core_off(struct gxp_dev *gxp, uint core); +void gxp_pm_core_off(struct gxp_dev *gxp, uint core); /** * gxp_pm_init() - API for initialize PM interface for GXP, should only be @@ -239,28 +260,36 @@ int gxp_pm_blk_get_state_acpm(struct gxp_dev *gxp); * gxp_pm_update_requested_power_states() - API for a GXP client to vote for a * requested power state and a requested memory power state. * @gxp: The GXP device to operate. - * @origin_state: An existing old requested state, will be cleared. If this is - * the first vote, pass AUR_OFF. - * @origin_requested_low_clkmux: Specify whether the existing vote was requested with - * low frequency CLKMUX flag. - * @requested_state: The new requested state. - * @requested_low_clkmux: Specify whether the new vote is requested with low frequency - * CLKMUX flag. Will take no effect if the @requested state is - * AUR_OFF. - * @origin_mem_state: An existing old requested state, will be cleared. If this is - * the first vote, pass AUR_MEM_UNDEFINED. - * @requested_mem_state: The new requested state. + * @origin_states: An existing old requested states, will be cleared. If this is + * the first vote, pass AUR_OFF and AUR_MEM_UNDEFINED for field + * power_state and memory_state. The low_clkmux field will take no + * effect if requested state is AUR_OFF. + * @requested_states: The new requested states. * * Return: * * 0 - Voting registered * * -EINVAL - Invalid original state or requested state */ -int gxp_pm_update_requested_power_states( - struct gxp_dev *gxp, enum aur_power_state origin_state, - bool origin_requested_low_clkmux, enum aur_power_state requested_state, - bool requested_low_clkmux, enum aur_memory_power_state origin_mem_state, - enum aur_memory_power_state requested_mem_state); +int gxp_pm_update_requested_power_states(struct gxp_dev *gxp, + struct gxp_power_states origin_states, + struct gxp_power_states requested_states); + +/** + * gxp_pm_update_pm_qos() - API for updating the memory power state but passing the values of + * INT and MIF frequencies directly. This function will ignore the vote ratings and update the + * frequencies right away. + * @gxp: The GXP device to operate. + * @int_val: The value of INT frequency. + * @mif_val: The value of MIF frequency. + * + * Note: This function will not update the @curr_memory_state of gxp_power_manager. + * + * Return: + * * 0 - The memory power state has been changed + * * -EINVAL - Invalid requested state + */ +int gxp_pm_update_pm_qos(struct gxp_dev *gxp, s32 int_val, s32 mif_val); /* * gxp_pm_force_clkmux_normal() - Force PLL_CON0_NOC_USER and PLL_CON0_PLL_AUR MUX |