kernel/linux.git/arch/powerpc/include/asm/asm-compat.h, branch v6.7

powerpc/vdso: augment VDSO32 functions to support 64 bits build

2022-02-12T11:47:43+00:00

VDSO64 cacheflush.S datapage.S gettimeofday.S and vgettimeofday.c are very similar to their VDSO32 counterpart. VDSO32 counterpart is already more complete than the VDSO64 version as it supports both PPC32 vdso and 32 bits VDSO for PPC64. Use compat macros wherever necessary in PPC32 files so that they can also be used to build VDSO64. vdso64/note.S is already a link to vdso32/note.S so no change is required. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/c2cbb8f046b7efc251053521dc39b752795e26b7.1642782130.git.christophe.leroy@csgroup.eu

powerpc: Use lwarx/ldarx directly instead of PPC_LWARX/LDARX macros

2021-08-25T03:35:49+00:00

Force the eh flag at 0 on PPC32. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1fc81f07cabebb875b963e295408cc3dd38c8d85.1614674882.git.christophe.leroy@csgroup.eu

powerpc: move ASM_CONST and stringify_in_c() into asm-const.h

2018-07-30T12:48:16+00:00

This patch moves ASM_CONST() and stringify_in_c() into dedicated asm-const.h, then cleans all related inclusions. Signed-off-by: Christophe Leroy [mpe: asm-compat.h should include asm-const.h] Signed-off-by: Michael Ellerman

powerpc/405: move PPC405_ERR77 in asm-405.h

2018-07-30T12:48:13+00:00

Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman

powerpc/asm: Convert .llong directives to .8byte

2017-08-31T04:26:47+00:00

.llong is an undocumented PPC specific directive. The generic equivalent is .quad, but even better (because it's self describing) is .8byte. Convert all .llong directives to .8byte. Signed-off-by: Tobin C. Harding Signed-off-by: Michael Ellerman

powerpc/ebpf/jit: Implement JIT compiler for extended BPF

2016-06-24T05:17:57+00:00

PPC64 eBPF JIT compiler. Enable with: echo 1 > /proc/sys/net/core/bpf_jit_enable or echo 2 > /proc/sys/net/core/bpf_jit_enable ... to see the generated JIT code. This can further be processed with tools/net/bpf_jit_disasm. With CONFIG_TEST_BPF=m and 'modprobe test_bpf': test_bpf: Summary: 305 PASSED, 0 FAILED, [297/297 JIT'ed] ... on both ppc64 BE and LE. The details of the approach are documented through various comments in the code. Acked-by: Alexei Starovoitov Signed-off-by: Naveen N. Rao Signed-off-by: Michael Ellerman

ppc: bpf: add required compatibility macros for jit

2015-02-20T20:19:43+00:00

Signed-off-by: Denis Kirjanov Signed-off-by: David S. Miller

PPC: Add asm helpers for BE 32bit load/store

2014-07-28T13:22:21+00:00

From assembly code we might not only have to explicitly BE access 64bit values, but sometimes also 32bit ones. Add helpers that allow for easy use of lwzx/stwx in their respective byte-reverse or native form. Signed-off-by: Alexander Graf CC: Benjamin Herrenschmidt

powerpc: Fix little endian lppaca, slb_shadow and dtl_entry

2013-08-14T05:33:35+00:00

The lppaca, slb_shadow and dtl_entry hypervisor structures are big endian, so we have to byte swap them in little endian builds. LE KVM hosts will also need to be fixed but for now add an #error to remind us. Signed-off-by: Anton Blanchard Signed-off-by: Benjamin Herrenschmidt

powerpc: Change mtcrf to use real register names

2012-07-10T09:18:11+00:00

mtocrf define is just a wrapper around the real instructions so we can just use real register names here (ie. lower case). Also remove braces in macro so this is possible. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt