From cd87442223fe3816144378c712a766c828ab9a44 Mon Sep 17 00:00:00 2001
From: Drew Fustini <dfustini@baylibre.com>
Date: Thu, 27 Apr 2023 21:20:11 -0700
Subject: [PATCH] DO_NOT_MERGE riscv: qos: print trace information when
changing sqoscfg
---
arch/riscv/include/asm/qos.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/riscv/include/asm/qos.h b/arch/riscv/include/asm/qos.h
index 9d0fe1ac1b34a..22b6510dfc81c 100644
--- a/arch/riscv/include/asm/qos.h
+++ b/arch/riscv/include/asm/qos.h
@@ -23,6 +23,8 @@ static inline void __switch_to_sqoscfg(struct task_struct *prev,
thread_sqoscfg = READ_ONCE(next->thread.sqoscfg);
if (thread_sqoscfg != *cpu_sqoscfg_ptr) {
+ trace_printk("DEBUG %s(): next task (%d) has thread.sqoscfg=0x%x, current cpu has sqoscfg=0x%x\n",
+ __func__, next->pid, thread_sqoscfg, *cpu_sqoscfg_ptr);
*cpu_sqoscfg_ptr = thread_sqoscfg;
csr_write(CSR_SQOSCFG, thread_sqoscfg);
}
--
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