diff options
| author | Andrew Jones <ajones@ventanamicro.com> | 2023-02-24 17:26:25 +0100 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-03-14 21:26:02 -0700 |
| commit | 8b05e7d0408ac99e2f05f3673f2f249e9a9e10ec (patch) | |
| tree | 9db03941c383a98c14002f90a4602cb8e1dece88 /arch/riscv/mm/cacheflush.c | |
| parent | 0b2f658f5370d9818244682c76fd8f6a91b2b1af (diff) | |
RISC-V: Factor out body of riscv_init_cbom_blocksize loop
Refactor riscv_init_cbom_blocksize() to prepare for it to be used
for both cbom block size and cboz block size.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230224162631.405473-3-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/mm/cacheflush.c')
| -rw-r--r-- | arch/riscv/mm/cacheflush.c | 45 |
1 files changed, 25 insertions, 20 deletions
diff --git a/arch/riscv/mm/cacheflush.c b/arch/riscv/mm/cacheflush.c index fcd6145fbead..9f37c7a330bf 100644 --- a/arch/riscv/mm/cacheflush.c +++ b/arch/riscv/mm/cacheflush.c @@ -100,34 +100,39 @@ void flush_icache_pte(pte_t pte) unsigned int riscv_cbom_block_size; EXPORT_SYMBOL_GPL(riscv_cbom_block_size); +static void cbo_get_block_size(struct device_node *node, + const char *name, u32 *block_size, + unsigned long *first_hartid) +{ + unsigned long hartid; + u32 val; + + if (riscv_of_processor_hartid(node, &hartid)) + return; + + if (of_property_read_u32(node, name, &val)) + return; + + if (!*block_size) { + *block_size = val; + *first_hartid = hartid; + } else if (*block_size != val) { + pr_warn("%s mismatched between harts %lu and %lu\n", + name, *first_hartid, hartid); + } +} + void riscv_init_cbom_blocksize(void) { struct device_node *node; unsigned long cbom_hartid; - u32 val, probed_block_size; - int ret; + u32 probed_block_size; probed_block_size = 0; for_each_of_cpu_node(node) { - unsigned long hartid; - - ret = riscv_of_processor_hartid(node, &hartid); - if (ret) - continue; - /* set block-size for cbom extension if available */ - ret = of_property_read_u32(node, "riscv,cbom-block-size", &val); - if (ret) - continue; - - if (!probed_block_size) { - probed_block_size = val; - cbom_hartid = hartid; - } else { - if (probed_block_size != val) - pr_warn("cbom-block-size mismatched between harts %lu and %lu\n", - cbom_hartid, hartid); - } + cbo_get_block_size(node, "riscv,cbom-block-size", + &probed_block_size, &cbom_hartid); } if (probed_block_size) |