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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 09:49:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 09:49:39 -0700 |
| commit | 744465da705f7d8cd893e97738a47b91f3321ce2 (patch) | |
| tree | c6d3214097ccf74b410bf0e2d7f0713c4b879bee /arch/xtensa/lib/lshrdi3.S | |
| parent | 1f1c153e406a7375ae0fc3d6000b64e7ba27cf8a (diff) | |
| parent | 1c4664faa38923330d478f046dc743a00c1e2dec (diff) | |
Merge tag 'xtensa-20220325' of https://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov:
- remove dependency on the compiler's libgcc
- allow selection of internal kernel ABI via Kconfig
- enable compiler plugins support for gcc-12 or newer
- various minor cleanups and fixes
* tag 'xtensa-20220325' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: define update_mmu_tlb function
xtensa: fix xtensa_wsr always writing 0
xtensa: enable plugin support
xtensa: clean up kernel exit assembly code
xtensa: rearrange NMI exit path
xtensa: merge stack alignment definitions
xtensa: fix DTC warning unit_address_format
xtensa: fix stop_machine_cpuslocked call in patch_text
xtensa: make secondary reset vector support conditional
xtensa: add kernel ABI selection to Kconfig
xtensa: don't link with libgcc
xtensa: add helpers for division, remainder and shifts
xtensa: add missing XCHAL_HAVE_WINDOWED check
xtensa: use XCHAL_NUM_AREGS as pt_regs::areg size
xtensa: rename PT_SIZE to PT_KERNEL_SIZE
xtensa: Remove unused early_read_config_byte() et al declarations
xtensa: use strscpy to copy strings
net: xtensa: use strscpy to copy strings
Diffstat (limited to 'arch/xtensa/lib/lshrdi3.S')
| -rw-r--r-- | arch/xtensa/lib/lshrdi3.S | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/xtensa/lib/lshrdi3.S b/arch/xtensa/lib/lshrdi3.S new file mode 100644 index 000000000000..129ef8d1725b --- /dev/null +++ b/arch/xtensa/lib/lshrdi3.S @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later WITH GCC-exception-2.0 */ +#include <linux/linkage.h> +#include <asm/asmmacro.h> +#include <asm/core.h> + +#ifdef __XTENSA_EB__ +#define uh a2 +#define ul a3 +#else +#define uh a3 +#define ul a2 +#endif /* __XTENSA_EB__ */ + +ENTRY(__lshrdi3) + + abi_entry_default + ssr a4 + bgei a4, 32, .Lhigh_only + src ul, uh, ul + srl uh, uh + abi_ret_default + +.Lhigh_only: + srl ul, uh + movi uh, 0 + abi_ret_default + +ENDPROC(__lshrdi3) |