arm-trusted-firmware

History

Andrew Thoelke ee7b35c4e1 Re-design bakery lock memory allocation and algorithm This patch unifies the bakery lock api's across coherent and normal memory implementation of locks by using same data type `bakery_lock_t` and similar arguments to functions. A separate section `bakery_lock` has been created and used to allocate memory for bakery locks using `DEFINE_BAKERY_LOCK`. When locks are allocated in normal memory, each lock for a core has to spread across multiple cache lines. By using the total size allocated in a separate cache line for a single core at compile time, the memory for other core locks is allocated at link time by multiplying the single core locks size with (PLATFORM_CORE_COUNT - 1). The normal memory lock algorithm now uses lock address instead of the `id` in the per_cpu_data. For locks allocated in coherent memory, it moves locks from tzfw_coherent_memory to bakery_lock section. The bakery locks are allocated as part of bss or in coherent memory depending on usage of coherent memory. Both these regions are initialised to zero as part of run_time_init before locks are used. Hence, bakery_lock_init() is made an empty function as the lock memory is already initialised to zero. The above design lead to the removal of psci bakery locks from non_cpu_power_pd_node to psci_locks. NOTE: THE BAKERY LOCK API WHEN USE_COHERENT_MEM IS NOT SET HAS CHANGED. THIS IS A BREAKING CHANGE FOR ALL PLATFORM PORTS THAT ALLOCATE BAKERY LOCKS IN NORMAL MEMORY. Change-Id: Ic3751c0066b8032dcbf9d88f1d4dc73d15f61d8b		9 years ago
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aarch64	PSCI: Migrate TF to the new platform API and CM helpers	9 years ago
bl31.ld.S	Re-design bakery lock memory allocation and algorithm	9 years ago
bl31.mk	PSCI: Switch to the new PSCI frameworks	9 years ago
bl31_main.c	PSCI: Migrate TF to the new platform API and CM helpers	9 years ago
context_mgmt.c	PSCI: Introduce new platform and CM helper APIs	9 years ago
cpu_data_array.c	Rework the crash reporting in BL3-1 to use less stack	10 years ago
interrupt_mgmt.c	Demonstrate model for routing IRQs to EL3	10 years ago
runtime_svc.c	Enable type-checking of arguments passed to printf() et al.	10 years ago