• Yatharth Kochar's avatar
    Add optional PSCI STAT residency & count functions · 170fb93d
    Yatharth Kochar authored
    This patch adds following optional PSCI STAT functions:
    
    - PSCI_STAT_RESIDENCY: This call returns the amount of time spent
      in power_state in microseconds, by the node represented by the
      `target_cpu` and the highest level of `power_state`.
    
    - PSCI_STAT_COUNT: This call returns the number of times a
      `power_state` has been used by the node represented by the
      `target_cpu` and the highest power level of `power_state`.
    
    These APIs provides residency statistics for power states that has
    been used by the platform. They are implemented according to v1.0
    of the PSCI specification.
    
    By default this optional feature is disabled in the PSCI
    implementation. To enable it, set the boolean flag
    `ENABLE_PSCI_STAT` to 1. This also sets `ENABLE_PMF` to 1.
    
    Change-Id: Ie62e9d37d6d416ccb1813acd7f616d1ddd3e8aff
    170fb93d
bl31.mk 3.01 KB
#
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BL31_SOURCES		+=	bl31/bl31_main.c				\
				bl31/cpu_data_array.c				\
				bl31/runtime_svc.c				\
				bl31/interrupt_mgmt.c				\
				bl31/aarch64/bl31_arch_setup.c			\
				bl31/aarch64/bl31_entrypoint.S			\
				bl31/aarch64/cpu_data.S				\
				bl31/aarch64/runtime_exceptions.S		\
				bl31/aarch64/crash_reporting.S			\
				bl31/bl31_context_mgmt.c			\
				common/aarch64/context.S			\
				common/context_mgmt.c				\
				lib/cpus/aarch64/cpu_helpers.S			\
				lib/locks/exclusive/spinlock.S			\
				services/std_svc/std_svc_setup.c		\
				services/std_svc/psci/psci_off.c		\
				services/std_svc/psci/psci_on.c			\
				services/std_svc/psci/psci_suspend.c		\
				services/std_svc/psci/psci_common.c		\
				services/std_svc/psci/psci_entry.S		\
				services/std_svc/psci/psci_helpers.S		\
				services/std_svc/psci/psci_main.c		\
				services/std_svc/psci/psci_setup.c		\
				services/std_svc/psci/psci_system_off.c

ifeq (${USE_COHERENT_MEM}, 1)
BL31_SOURCES		+=	lib/locks/bakery/bakery_lock_coherent.c
else
BL31_SOURCES		+=	lib/locks/bakery/bakery_lock_normal.c
endif

ifeq (${ENABLE_PMF}, 1)
BL31_SOURCES		+=	lib/pmf/pmf_main.c
endif

ifeq (${ENABLE_PSCI_STAT}, 1)
BL31_SOURCES		+=	services/std_svc/psci/psci_stat.c
endif

BL31_LINKERFILE		:=	bl31/bl31.ld.S

# Flag used to indicate if Crash reporting via console should be included
# in BL31. This defaults to being present in DEBUG builds only
ifndef CRASH_REPORTING
CRASH_REPORTING		:=	$(DEBUG)
endif

$(eval $(call assert_boolean,CRASH_REPORTING))
$(eval $(call add_define,CRASH_REPORTING))