Hi, The main purpose of this series is to expose CPU cache attributes for OpenRISC in sysfs using the cacheinfo API. The core implementation to achieve this is in patch #3. Patch #1 and #2 add certain enhancements to simplify the implementation of cacheinfo support.
Patch #1 removes duplication of cache-related data members in struct cpuinfo_or1k. Patch #2 introduces several utility functions. One set of functions is used to check if the cache components and SPRs exist before attempting to use them. The other set provides a convenient interface to flush or invalidate a range of cache blocks. This version addresses review comments posted in response to v3. In commit #2, I chose not to make "cache_loop_page()" inline after reading point 15 in the coding style doc [1]. Let me know if it should be made inline. Thanks, Sahil [1] https://www.kernel.org/doc/html/latest/process/coding-style.html Sahil Siddiq (3): openrisc: Refactor struct cpuinfo_or1k to reduce duplication openrisc: Introduce new utility functions to flush and invalidate caches openrisc: Add cacheinfo support arch/openrisc/include/asm/cacheflush.h | 17 ++++ arch/openrisc/include/asm/cpuinfo.h | 31 ++++++-- arch/openrisc/kernel/Makefile | 2 +- arch/openrisc/kernel/cacheinfo.c | 104 +++++++++++++++++++++++++ arch/openrisc/kernel/dma.c | 18 +---- arch/openrisc/kernel/setup.c | 45 +---------- arch/openrisc/mm/cache.c | 87 +++++++++++++++++++-- arch/openrisc/mm/init.c | 5 +- 8 files changed, 235 insertions(+), 74 deletions(-) create mode 100644 arch/openrisc/kernel/cacheinfo.c base-commit: ea1413e5b53a8dd4fa7675edb23cdf828bbdce1e -- 2.48.1
