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09d40e0e08
Enforce full include path for includes. Deprecate old paths.
The following folders inside include/lib have been left unchanged:
- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}
The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).
For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").
This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.
Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.
Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
165 lines
5 KiB
C
165 lines
5 KiB
C
/*
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* Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef CPU_DATA_H
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#define CPU_DATA_H
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#include <platform_def.h> /* CACHE_WRITEBACK_GRANULE required */
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#include <bl31/ehf.h>
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#ifdef AARCH32
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#if CRASH_REPORTING
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#error "Crash reporting is not supported in AArch32"
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#endif
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#define CPU_DATA_CPU_OPS_PTR 0x0
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#define CPU_DATA_CRASH_BUF_OFFSET 0x4
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#else /* AARCH32 */
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/* Offsets for the cpu_data structure */
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#define CPU_DATA_CRASH_BUF_OFFSET 0x18
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/* need enough space in crash buffer to save 8 registers */
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#define CPU_DATA_CRASH_BUF_SIZE 64
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#define CPU_DATA_CPU_OPS_PTR 0x10
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#endif /* AARCH32 */
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#if CRASH_REPORTING
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#define CPU_DATA_CRASH_BUF_END (CPU_DATA_CRASH_BUF_OFFSET + \
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CPU_DATA_CRASH_BUF_SIZE)
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#else
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#define CPU_DATA_CRASH_BUF_END CPU_DATA_CRASH_BUF_OFFSET
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#endif
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/* cpu_data size is the data size rounded up to the platform cache line size */
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#define CPU_DATA_SIZE (((CPU_DATA_CRASH_BUF_END + \
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CACHE_WRITEBACK_GRANULE - 1) / \
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CACHE_WRITEBACK_GRANULE) * \
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CACHE_WRITEBACK_GRANULE)
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#if ENABLE_RUNTIME_INSTRUMENTATION
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/* Temporary space to store PMF timestamps from assembly code */
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#define CPU_DATA_PMF_TS_COUNT 1
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#define CPU_DATA_PMF_TS0_OFFSET CPU_DATA_CRASH_BUF_END
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#define CPU_DATA_PMF_TS0_IDX 0
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#endif
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#ifndef __ASSEMBLY__
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#include <arch_helpers.h>
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#include <lib/cassert.h>
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#include <lib/psci/psci.h>
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#include <platform_def.h>
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#include <stdint.h>
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/* Offsets for the cpu_data structure */
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#define CPU_DATA_PSCI_LOCK_OFFSET __builtin_offsetof\
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(cpu_data_t, psci_svc_cpu_data.pcpu_bakery_info)
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#if PLAT_PCPU_DATA_SIZE
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#define CPU_DATA_PLAT_PCPU_OFFSET __builtin_offsetof\
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(cpu_data_t, platform_cpu_data)
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#endif
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/*******************************************************************************
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* Function & variable prototypes
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******************************************************************************/
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/*******************************************************************************
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* Cache of frequently used per-cpu data:
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* Pointers to non-secure and secure security state contexts
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* Address of the crash stack
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* It is aligned to the cache line boundary to allow efficient concurrent
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* manipulation of these pointers on different cpus
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*
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* TODO: Add other commonly used variables to this (tf_issues#90)
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*
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* The data structure and the _cpu_data accessors should not be used directly
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* by components that have per-cpu members. The member access macros should be
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* used for this.
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******************************************************************************/
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typedef struct cpu_data {
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#ifndef AARCH32
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void *cpu_context[2];
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#endif
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uintptr_t cpu_ops_ptr;
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#if CRASH_REPORTING
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u_register_t crash_buf[CPU_DATA_CRASH_BUF_SIZE >> 3];
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#endif
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#if ENABLE_RUNTIME_INSTRUMENTATION
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uint64_t cpu_data_pmf_ts[CPU_DATA_PMF_TS_COUNT];
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#endif
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struct psci_cpu_data psci_svc_cpu_data;
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#if PLAT_PCPU_DATA_SIZE
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uint8_t platform_cpu_data[PLAT_PCPU_DATA_SIZE];
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#endif
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#if defined(IMAGE_BL31) && EL3_EXCEPTION_HANDLING
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pe_exc_data_t ehf_data;
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#endif
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} __aligned(CACHE_WRITEBACK_GRANULE) cpu_data_t;
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extern cpu_data_t percpu_data[PLATFORM_CORE_COUNT];
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#if CRASH_REPORTING
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/* verify assembler offsets match data structures */
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CASSERT(CPU_DATA_CRASH_BUF_OFFSET == __builtin_offsetof
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(cpu_data_t, crash_buf),
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assert_cpu_data_crash_stack_offset_mismatch);
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#endif
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CASSERT(CPU_DATA_SIZE == sizeof(cpu_data_t),
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assert_cpu_data_size_mismatch);
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CASSERT(CPU_DATA_CPU_OPS_PTR == __builtin_offsetof
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(cpu_data_t, cpu_ops_ptr),
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assert_cpu_data_cpu_ops_ptr_offset_mismatch);
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#if ENABLE_RUNTIME_INSTRUMENTATION
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CASSERT(CPU_DATA_PMF_TS0_OFFSET == __builtin_offsetof
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(cpu_data_t, cpu_data_pmf_ts[0]),
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assert_cpu_data_pmf_ts0_offset_mismatch);
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#endif
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struct cpu_data *_cpu_data_by_index(uint32_t cpu_index);
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#ifndef AARCH32
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/* Return the cpu_data structure for the current CPU. */
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static inline struct cpu_data *_cpu_data(void)
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{
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return (cpu_data_t *)read_tpidr_el3();
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}
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#else
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struct cpu_data *_cpu_data(void);
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#endif
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/**************************************************************************
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* APIs for initialising and accessing per-cpu data
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*************************************************************************/
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void init_cpu_data_ptr(void);
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void init_cpu_ops(void);
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#define get_cpu_data(_m) _cpu_data()->_m
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#define set_cpu_data(_m, _v) _cpu_data()->_m = (_v)
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#define get_cpu_data_by_index(_ix, _m) _cpu_data_by_index(_ix)->_m
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#define set_cpu_data_by_index(_ix, _m, _v) _cpu_data_by_index(_ix)->_m = (_v)
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/* ((cpu_data_t *)0)->_m is a dummy to get the sizeof the struct member _m */
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#define flush_cpu_data(_m) flush_dcache_range((uintptr_t) \
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&(_cpu_data()->_m), \
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sizeof(((cpu_data_t *)0)->_m))
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#define inv_cpu_data(_m) inv_dcache_range((uintptr_t) \
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&(_cpu_data()->_m), \
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sizeof(((cpu_data_t *)0)->_m))
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#define flush_cpu_data_by_index(_ix, _m) \
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flush_dcache_range((uintptr_t) \
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&(_cpu_data_by_index(_ix)->_m), \
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sizeof(((cpu_data_t *)0)->_m))
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#endif /* __ASSEMBLY__ */
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#endif /* CPU_DATA_H */
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