diff mbox series

[v6,09/14] riscv: misaligned: move emulated access uniformity check in a function

Message ID 20250424173204.1948385-10-cleger@rivosinc.com
State New
Headers show
Series [v6,01/14] riscv: sbi: add Firmware Feature (FWFT) SBI extensions definitions | expand

Commit Message

Clément Léger April 24, 2025, 5:31 p.m. UTC 
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>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
---
 arch/riscv/kernel/traps_misaligned.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c
index e02e9b4b0fc5..410b2e0e0765 100644
--- a/arch/riscv/kernel/traps_misaligned.c
+++ b/arch/riscv/kernel/traps_misaligned.c
@@ -666,10 +666,20 @@  static int cpu_online_check_unaligned_access_emulated(unsigned int cpu)
 	return 0;
 }
 
-bool __init 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 __init 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
@@ -677,10 +687,8 @@  bool __init 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;