• Soby Mathew's avatar
    Move bakery algorithm implementation out of coherent memory · 8c5fe0b5
    Soby Mathew authored
    This patch moves the bakery locks out of coherent memory to normal memory.
    This implies that the lock information needs to be placed on a separate cache
    line for each cpu. Hence the bakery_lock_info_t structure is allocated in the
    per-cpu data so as to minimize memory wastage. A similar platform per-cpu
    data is introduced for the platform locks.
    
    As a result of the above changes, the bakery lock api is completely changed.
    Earlier, a reference to the lock structure was passed to the lock implementation.
    Now a unique-id (essentially an index into the per-cpu data array) and an offset
    into the per-cpu data for bakery_info_t needs to be passed to the lock
    implementation.
    
    Change-Id: I1e76216277448713c6c98b4c2de4fb54198b39e0
    8c5fe0b5
bl31.mk 3.12 KB
#
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BL31_SOURCES		+=	bl31/bl31_main.c				\
				bl31/context_mgmt.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/context.S				\
				bl31/aarch64/cpu_data.S				\
				bl31/aarch64/runtime_exceptions.S		\
				bl31/aarch64/crash_reporting.S			\
				lib/cpus/aarch64/cpu_helpers.S			\
				lib/locks/exclusive/spinlock.S			\
				services/std_svc/std_svc_setup.c		\
				services/std_svc/psci/psci_afflvl_off.c		\
				services/std_svc/psci/psci_afflvl_on.c		\
				services/std_svc/psci/psci_afflvl_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

BL31_LINKERFILE		:=	bl31/bl31.ld.S

# Flag used by the generic interrupt management framework to  determine if
# upon the assertion of an interrupt, it should pass the interrupt id or not
IMF_READ_INTERRUPT_ID	:=	0

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

# Flag used to inidicate if Crash reporting via console should be included
# in BL3-1. 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))