2014-05-16 14:08:45 +01:00
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/*
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2018-01-09 14:36:14 +00:00
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* Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
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2014-05-16 14:08:45 +01:00
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*
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2017-05-03 09:38:09 +01:00
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* SPDX-License-Identifier: BSD-3-Clause
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2014-05-16 14:08:45 +01:00
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*/
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2017-10-16 08:43:14 +01:00
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2015-07-13 16:26:11 +01:00
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#include <assert.h>
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2018-12-14 00:18:21 +00:00
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#include <arch_helpers.h>
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#include <drivers/console.h>
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2017-12-08 15:38:21 +00:00
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#if RAS_EXTENSION
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2018-12-14 00:18:21 +00:00
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#include <lib/extensions/ras.h>
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2017-12-08 15:38:21 +00:00
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#endif
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2018-12-14 00:18:21 +00:00
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#include <lib/xlat_tables/xlat_mmu_helpers.h>
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#include <plat/common/platform.h>
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2014-05-16 14:08:45 +01:00
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/*
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2015-12-09 11:28:43 +00:00
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* The following platform setup functions are weakly defined. They
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2014-05-16 14:08:45 +01:00
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* provide typical implementations that may be re-used by multiple
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* platforms but may also be overridden by a platform if required.
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*/
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2015-12-09 11:28:43 +00:00
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#pragma weak bl31_plat_runtime_setup
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2014-05-16 14:08:45 +01:00
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2017-10-16 08:43:14 +01:00
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#if SDEI_SUPPORT
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#pragma weak plat_sdei_handle_masked_trigger
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#pragma weak plat_sdei_validate_entry_point
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#endif
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2017-11-30 12:54:15 +00:00
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#pragma weak plat_ea_handler
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2015-12-09 11:28:43 +00:00
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void bl31_plat_runtime_setup(void)
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{
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2017-08-01 02:15:11 +01:00
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#if MULTI_CONSOLE_API
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console_switch_state(CONSOLE_FLAG_RUNTIME);
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#else
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2015-12-09 11:28:43 +00:00
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console_uninit();
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2017-08-01 02:15:11 +01:00
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#endif
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2015-12-09 11:28:43 +00:00
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}
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2015-07-13 16:26:11 +01:00
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/*
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* Helper function for platform_get_pos() when platform compatibility is
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* disabled. This is to enable SPDs using the older platform API to continue
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* to work.
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*/
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unsigned int platform_core_pos_helper(unsigned long mpidr)
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{
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int idx = plat_core_pos_by_mpidr(mpidr);
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assert(idx >= 0);
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return idx;
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}
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2016-05-18 16:53:31 +01:00
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2017-10-16 08:43:14 +01:00
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#if SDEI_SUPPORT
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/*
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* Function that handles spurious SDEI interrupts while events are masked.
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*/
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void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr)
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{
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types: use int-ll64 for both aarch32 and aarch64
Since commit 031dbb122472 ("AArch32: Add essential Arch helpers"),
it is difficult to use consistent format strings for printf() family
between aarch32 and aarch64.
For example, uint64_t is defined as 'unsigned long long' for aarch32
and as 'unsigned long' for aarch64. Likewise, uintptr_t is defined
as 'unsigned int' for aarch32, and as 'unsigned long' for aarch64.
A problem typically arises when you use printf() in common code.
One solution could be, to cast the arguments to a type long enough
for both architectures. For example, if 'val' is uint64_t type,
like this:
printf("val = %llx\n", (unsigned long long)val);
Or, somebody may suggest to use a macro provided by <inttypes.h>,
like this:
printf("val = %" PRIx64 "\n", val);
But, both would make the code ugly.
The solution adopted in Linux kernel is to use the same typedefs for
all architectures. The fixed integer types in the kernel-space have
been unified into int-ll64, like follows:
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
[ Linux commit: 0c79a8e29b5fcbcbfd611daf9d500cfad8370fcf ]
This gets along with the codebase shared between 32 bit and 64 bit,
with the data model called ILP32, LP64, respectively.
The width for primitive types is defined as follows:
ILP32 LP64
int 32 32
long 32 64
long long 64 64
pointer 32 64
'long long' is 64 bit for both, so it is used for defining uint64_t.
'long' has the same width as pointer, so for uintptr_t.
We still need an ifdef conditional for (s)size_t.
All 64 bit architectures use "unsigned long" size_t, and most 32 bit
architectures use "unsigned int" size_t. H8/300, S/390 are known as
exceptions; they use "unsigned long" size_t despite their architecture
is 32 bit.
One idea for simplification might be to define size_t as 'unsigned long'
across architectures, then forbid the use of "%z" string format.
However, this would cause a distortion between size_t and sizeof()
operator. We have unknowledge about the native type of sizeof(), so
we need a guess of it anyway. I want the following formula to always
return 1:
__builtin_types_compatible_p(size_t, typeof(sizeof(int)))
Fortunately, ARM is probably a majority case. As far as I know, all
32 bit ARM compilers use "unsigned int" size_t.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-02 06:09:36 +00:00
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WARN("Spurious SDEI interrupt %u on masked PE %llx\n", intr, mpidr);
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2017-10-16 08:43:14 +01:00
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}
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/*
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* Default Function to validate SDEI entry point, which returns success.
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* Platforms may override this with their own validation mechanism.
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*/
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int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
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{
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return 0;
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}
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#endif
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2017-11-30 12:54:15 +00:00
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/* RAS functions common to AArch64 ARM platforms */
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void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
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void *handle, uint64_t flags)
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{
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2017-12-08 15:38:21 +00:00
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#if RAS_EXTENSION
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/* Call RAS EA handler */
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int handled = ras_ea_handler(ea_reason, syndrome, cookie, handle, flags);
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if (handled != 0)
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return;
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#endif
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2017-11-30 12:54:15 +00:00
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ERROR("Unhandled External Abort received on 0x%lx at EL3!\n",
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read_mpidr_el1());
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2018-05-15 16:18:40 +01:00
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ERROR(" exception reason=%u syndrome=0x%llx\n", ea_reason, syndrome);
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2017-11-30 12:54:15 +00:00
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panic();
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}
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