diff options
Diffstat (limited to 'arch/riscv/mm/sifive_l2_cache.c')
| -rw-r--r-- | arch/riscv/mm/sifive_l2_cache.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/riscv/mm/sifive_l2_cache.c b/arch/riscv/mm/sifive_l2_cache.c index 4eb64619b3f4..2e637ad71c05 100644 --- a/arch/riscv/mm/sifive_l2_cache.c +++ b/arch/riscv/mm/sifive_l2_cache.c @@ -109,13 +109,14 @@ EXPORT_SYMBOL_GPL(unregister_sifive_l2_error_notifier); static irqreturn_t l2_int_handler(int irq, void *device) { - unsigned int regval, add_h, add_l; + unsigned int add_h, add_l; if (irq == g_irq[DIR_CORR]) { add_h = readl(l2_base + SIFIVE_L2_DIRECCFIX_HIGH); add_l = readl(l2_base + SIFIVE_L2_DIRECCFIX_LOW); pr_err("L2CACHE: DirError @ 0x%08X.%08X\n", add_h, add_l); - regval = readl(l2_base + SIFIVE_L2_DIRECCFIX_COUNT); + /* Reading this register clears the DirError interrupt sig */ + readl(l2_base + SIFIVE_L2_DIRECCFIX_COUNT); atomic_notifier_call_chain(&l2_err_chain, SIFIVE_L2_ERR_TYPE_CE, "DirECCFix"); } @@ -123,7 +124,8 @@ static irqreturn_t l2_int_handler(int irq, void *device) add_h = readl(l2_base + SIFIVE_L2_DATECCFIX_HIGH); add_l = readl(l2_base + SIFIVE_L2_DATECCFIX_LOW); pr_err("L2CACHE: DataError @ 0x%08X.%08X\n", add_h, add_l); - regval = readl(l2_base + SIFIVE_L2_DATECCFIX_COUNT); + /* Reading this register clears the DataError interrupt sig */ + readl(l2_base + SIFIVE_L2_DATECCFIX_COUNT); atomic_notifier_call_chain(&l2_err_chain, SIFIVE_L2_ERR_TYPE_CE, "DatECCFix"); } @@ -131,7 +133,8 @@ static irqreturn_t l2_int_handler(int irq, void *device) add_h = readl(l2_base + SIFIVE_L2_DATECCFAIL_HIGH); add_l = readl(l2_base + SIFIVE_L2_DATECCFAIL_LOW); pr_err("L2CACHE: DataFail @ 0x%08X.%08X\n", add_h, add_l); - regval = readl(l2_base + SIFIVE_L2_DATECCFAIL_COUNT); + /* Reading this register clears the DataFail interrupt sig */ + readl(l2_base + SIFIVE_L2_DATECCFAIL_COUNT); atomic_notifier_call_chain(&l2_err_chain, SIFIVE_L2_ERR_TYPE_UE, "DatECCFail"); } |