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linux/arch/powerpc/lib
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Michael Ellerman 16ef9767e4 powerpc: Add ppc_inst_as_u64() 
The code patching code wants to get the value of a struct ppc_inst as
a u64 when the instruction is prefixed, so we can pass the u64 down to
__put_user_asm() and write it with a single store.

The optprobes code wants to load a struct ppc_inst as an immediate
into a register so it is useful to have it as a u64 to use the
existing helper function.

Currently this is a bit awkward because the value differs based on the
CPU endianness, so add a helper to do the conversion.

This fixes the usage in arch_prepare_optimized_kprobe() which was
previously incorrect on big endian.

Fixes: 650b55b707 ("powerpc: Add prefixed instructions to instruction data type")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Jordan Niethe <jniethe5@gmail.com>
Link: https://lore.kernel.org/r/20200526072630.2487363-1-mpe@ellerman.id.au
2020-05-26 23:36:57 +10:00
..
alloc.c treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
checksum_32.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
checksum_64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
checksum_wrappers.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
code-patching.c powerpc: Add ppc_inst_as_u64() 2020-05-26 23:36:57 +10:00
copy_32.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
copypage_64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
copypage_power7.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
copyuser_64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
copyuser_power7.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
crtsavres.S
div64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
error-inject.c powerpc: Add support for function error injection 2018-10-20 13:26:43 +11:00
feature-fixups-test.S powerpc: Test prefixed instructions in feature fixups 2020-05-19 00:11:02 +10:00
feature-fixups.c powerpc: Add ppc_inst_next() 2020-05-26 23:36:51 +10:00
hweight_64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
inst.c powerpc: Add prefixed instructions to instruction data type 2020-05-19 00:10:39 +10:00
ldstfp.S powerpc updates for 5.3 2019-07-13 16:08:36 -07:00
locks.c powerpc/spinlocks: Rename SPLPAR-only spinlocks 2019-08-27 13:03:36 +10:00
Makefile powerpc: Test prefixed code patching 2020-05-19 00:11:02 +10:00
mem_64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
memcmp_32.S powerpc/lib: optimise PPC32 memcmp 2018-06-04 00:39:21 +10:00
memcmp_64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
memcpy_64.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
memcpy_mcsafe_64.S powerpc/memcpy: Fix stack corruption for smaller sizes 2019-09-12 09:27:00 +10:00
memcpy_power7.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pmem.c powerpc/pmem: Convert to EXPORT_SYMBOL_GPL 2019-12-05 09:17:42 +11:00
quad.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
rheap.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
sstep.c powerpc sstep: Add support for prefixed fixed-point arithmetic 2020-05-19 00:11:03 +10:00
string_32.S powerpc: Fix __clear_user() with KUAP enabled 2019-12-16 23:19:44 +11:00
string_64.S powerpc: Fix __clear_user() with KUAP enabled 2019-12-16 23:19:44 +11:00
string.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
strlen_32.S powerpc/lib: Implement strlen() in assembly for PPC32 2018-08-07 21:49:30 +10:00
test_code-patching.S powerpc: Test prefixed code patching 2020-05-19 00:11:02 +10:00
test_emulate_step_exec_instr.S powerpc: sstep: Add tests for compute type instructions 2019-02-23 21:04:31 +11:00
test_emulate_step.c powerpc: Use a datatype for instructions 2020-05-19 00:10:37 +10:00
vmx-helper.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
xor_vmx_glue.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
xor_vmx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
xor_vmx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00