riscv: Add macro for multiple nop instructions

Browse source

Some cases need multiple nop instructions and arm64 already has a
nice helper for not needing to write all of them out but instead
use a helper to add n nops.

So add a similar thing to riscv and convert the T-Head PMA
alternative to use it.

* 'riscv-nops' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux.git:
  riscv: convert the t-head pbmt errata to use the __nops macro
  riscv: introduce nops and __nops macros for NOP sequences

...

This commit is contained in:

Palmer Dabbelt 2022-07-21 17:19:43 -07:00

parent 3f1901110a 9c2ea4a363

commit f4361718f7

No known key found for this signature in database

GPG key ID: EF4CA1502CCBAB41

3 changed files with 18 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

15

arch/riscv/include/asm/asm.h

View file

2

arch/riscv/include/asm/barrier.h

View file

8

arch/riscv/include/asm/errata_list.h

View file