On Mon, Mar 10, 2025 at 04:12:14PM +0100, Clément Léger wrote:
Split the code that check for the uniformity of misaligned accesses performance on all cpus from check_unaligned_access_emulated_all_cpus() to its own function which will be used for delegation check. No functional changes intended.
Signed-off-by: Clément Léger cleger@rivosinc.com
arch/riscv/kernel/traps_misaligned.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c index 7fe25adf2539..db31966a834e 100644 --- a/arch/riscv/kernel/traps_misaligned.c +++ b/arch/riscv/kernel/traps_misaligned.c @@ -673,10 +673,20 @@ static int cpu_online_check_unaligned_access_emulated(unsigned int cpu) return 0; } -bool check_unaligned_access_emulated_all_cpus(void) +static bool all_cpus_unaligned_scalar_access_emulated(void) { int cpu;
- for_each_online_cpu(cpu)
if (per_cpu(misaligned_access_speed, cpu) !=RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED)return false;- return true;
+}
+bool check_unaligned_access_emulated_all_cpus(void) +{ /* * We can only support PR_UNALIGN controls if all CPUs have misaligned * accesses emulated since tasks requesting such control can run on any @@ -684,10 +694,8 @@ bool check_unaligned_access_emulated_all_cpus(void) */ on_each_cpu(check_unaligned_access_emulated, NULL, 1);
- for_each_online_cpu(cpu)
if (per_cpu(misaligned_access_speed, cpu)!= RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED)return false;
- if (!all_cpus_unaligned_scalar_access_emulated())
return false;unaligned_ctl = true; return true; -- 2.47.2
Reviewed-by: Andrew Jones ajones@ventanamicro.com