Merge pull request #1211 from Leo-Yan/remove_ca73_cpu_nap_state
Hikey960: Remove ca73 cpu nap state
This commit is contained in:
commit
9fd4a36c40
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@ -16,8 +16,6 @@
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.globl plat_crash_console_putc
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.globl plat_report_exception
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.globl plat_reset_handler
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.globl set_retention_ticks
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.globl clr_retention_ticks
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.globl clr_ex
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.globl nop
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@ -138,35 +136,6 @@ func plat_reset_handler
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ret
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endfunc plat_reset_handler
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/* -----------------------------------------------------
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* void set_retention_ticks(unsigned int val);
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* Clobber list : x0
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* -----------------------------------------------------
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*/
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func set_retention_ticks
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mrs x0, CORTEX_A53_ECTLR_EL1
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bic x0, x0, #CORTEX_A53_ECTLR_CPU_RET_CTRL_MASK
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orr x0, x0, #RETENTION_ENTRY_TICKS_8
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msr CORTEX_A53_ECTLR_EL1, x0
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isb
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dsb sy
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ret
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endfunc set_retention_ticks
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/* -----------------------------------------------------
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* void clr_retention_ticks(unsigned int val);
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* Clobber list : x0
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* -----------------------------------------------------
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*/
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func clr_retention_ticks
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mrs x0, CORTEX_A53_ECTLR_EL1
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bic x0, x0, #CORTEX_A53_ECTLR_CPU_RET_CTRL_MASK
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msr CORTEX_A53_ECTLR_EL1, x0
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isb
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dsb sy
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ret
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endfunc clr_retention_ticks
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/* -----------------------------------------------------
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* void clrex(void);
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* -----------------------------------------------------
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@ -26,38 +26,6 @@
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#define SYSTEM_PWR_STATE(state) \
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((state)->pwr_domain_state[PLAT_MAX_PWR_LVL])
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#define PSTATE_WIDTH 4
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#define PSTATE_MASK ((1 << PSTATE_WIDTH) - 1)
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#define MAKE_PWRSTATE(lvl2_state, lvl1_state, lvl0_state, pwr_lvl, type) \
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(((lvl2_state) << (PSTATE_ID_SHIFT + PSTATE_WIDTH * 2)) | \
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((lvl1_state) << (PSTATE_ID_SHIFT + PSTATE_WIDTH)) | \
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((lvl0_state) << (PSTATE_ID_SHIFT)) | \
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((pwr_lvl) << PSTATE_PWR_LVL_SHIFT) | \
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((type) << PSTATE_TYPE_SHIFT))
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/*
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* The table storing the valid idle power states. Ensure that the
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* array entries are populated in ascending order of state-id to
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* enable us to use binary search during power state validation.
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* The table must be terminated by a NULL entry.
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*/
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const unsigned int hikey960_pwr_idle_states[] = {
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/* State-id - 0x001 */
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MAKE_PWRSTATE(PLAT_MAX_RUN_STATE, PLAT_MAX_RUN_STATE,
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PLAT_MAX_STB_STATE, MPIDR_AFFLVL0, PSTATE_TYPE_STANDBY),
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/* State-id - 0x002 */
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MAKE_PWRSTATE(PLAT_MAX_RUN_STATE, PLAT_MAX_RUN_STATE,
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PLAT_MAX_RET_STATE, MPIDR_AFFLVL0, PSTATE_TYPE_STANDBY),
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/* State-id - 0x003 */
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MAKE_PWRSTATE(PLAT_MAX_RUN_STATE, PLAT_MAX_RUN_STATE,
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PLAT_MAX_OFF_STATE, MPIDR_AFFLVL0, PSTATE_TYPE_POWERDOWN),
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/* State-id - 0x033 */
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MAKE_PWRSTATE(PLAT_MAX_RUN_STATE, PLAT_MAX_OFF_STATE,
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PLAT_MAX_OFF_STATE, MPIDR_AFFLVL1, PSTATE_TYPE_POWERDOWN),
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0,
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};
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#define DMAC_GLB_REG_SEC 0x694
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#define AXI_CONF_BASE 0x820
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@ -66,24 +34,17 @@ static uintptr_t hikey960_sec_entrypoint;
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static void hikey960_pwr_domain_standby(plat_local_state_t cpu_state)
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{
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unsigned long scr;
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unsigned int val = 0;
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assert(cpu_state == PLAT_MAX_STB_STATE ||
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cpu_state == PLAT_MAX_RET_STATE);
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scr = read_scr_el3();
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/* Enable Physical IRQ and FIQ to wake the CPU*/
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/* Enable Physical IRQ and FIQ to wake the CPU */
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write_scr_el3(scr | SCR_IRQ_BIT | SCR_FIQ_BIT);
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if (cpu_state == PLAT_MAX_RET_STATE)
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set_retention_ticks(val);
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/* Add barrier before CPU enter WFI state */
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isb();
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dsb();
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wfi();
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if (cpu_state == PLAT_MAX_RET_STATE)
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clr_retention_ticks(val);
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/*
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* Restore SCR to the original value, synchronisazion of
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* scr_el3 is done by eret while el3_exit to save some
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@ -161,34 +122,38 @@ static void __dead2 hikey960_system_reset(void)
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int hikey960_validate_power_state(unsigned int power_state,
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psci_power_state_t *req_state)
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{
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unsigned int state_id;
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unsigned int pstate = psci_get_pstate_type(power_state);
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unsigned int pwr_lvl = psci_get_pstate_pwrlvl(power_state);
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int i;
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assert(req_state);
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/*
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* Currently we are using a linear search for finding the matching
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* entry in the idle power state array. This can be made a binary
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* search if the number of entries justify the additional complexity.
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*/
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for (i = 0; !!hikey960_pwr_idle_states[i]; i++) {
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if (power_state == hikey960_pwr_idle_states[i])
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break;
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}
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/* Return error if entry not found in the idle state array */
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if (!hikey960_pwr_idle_states[i])
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if (pwr_lvl > PLAT_MAX_PWR_LVL)
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return PSCI_E_INVALID_PARAMS;
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i = 0;
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state_id = psci_get_pstate_id(power_state);
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/* Sanity check the requested state */
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if (pstate == PSTATE_TYPE_STANDBY) {
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/*
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* It's possible to enter standby only on power level 0
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* Ignore any other power level.
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*/
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if (pwr_lvl != MPIDR_AFFLVL0)
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return PSCI_E_INVALID_PARAMS;
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/* Parse the State ID and populate the state info parameter */
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while (state_id) {
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req_state->pwr_domain_state[i++] = state_id & PSTATE_MASK;
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state_id >>= PSTATE_WIDTH;
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req_state->pwr_domain_state[MPIDR_AFFLVL0] =
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PLAT_MAX_RET_STATE;
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} else {
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for (i = MPIDR_AFFLVL0; i <= pwr_lvl; i++)
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req_state->pwr_domain_state[i] =
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PLAT_MAX_OFF_STATE;
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}
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/*
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* We expect the 'state id' to be zero.
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*/
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if (psci_get_pstate_id(power_state))
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return PSCI_E_INVALID_PARAMS;
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return PSCI_E_SUCCESS;
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}
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@ -31,10 +31,8 @@
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#define PLAT_NUM_PWR_DOMAINS (PLATFORM_CORE_COUNT + \
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PLATFORM_CLUSTER_COUNT + 1)
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#define PLAT_MAX_RUN_STATE 0
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#define PLAT_MAX_STB_STATE 1
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#define PLAT_MAX_RET_STATE 2
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#define PLAT_MAX_OFF_STATE 3
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#define PLAT_MAX_RET_STATE 1
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#define PLAT_MAX_OFF_STATE 2
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#define MAX_IO_DEVICES 3
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#define MAX_IO_HANDLES 4
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