MIPS: Octeon: Use write_{un,}lock_irq{restore,save} to set irq affinity

Since the locks are used from interrupt context we need the
irqsave/irqrestore versions of the locking functions.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 384f184..0bda5c5 100644 (file)
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -182,9 +182,10 @@ static void octeon_irq_ciu0_disable(unsigned int irq)
 static int octeon_irq_ciu0_set_affinity(unsigned int irq, const struct cpumask *dest)
 {
        int cpu;
+       unsigned long flags;
        int bit = irq - OCTEON_IRQ_WORKQ0;      /* Bit 0-63 of EN0 */
 
-       write_lock(&octeon_irq_ciu0_rwlock);
+       write_lock_irqsave(&octeon_irq_ciu0_rwlock, flags);
        for_each_online_cpu(cpu) {
                int coreid = cpu_logical_map(cpu);
                uint64_t en0 =
@@ -200,7 +201,7 @@ static int octeon_irq_ciu0_set_affinity(unsigned int irq, const struct cpumask *
         * of them are done.
         */
        cvmx_read_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num() * 2));
-       write_unlock(&octeon_irq_ciu0_rwlock);
+       write_unlock_irqrestore(&octeon_irq_ciu0_rwlock, flags);
 
        return 0;
 }
@@ -299,9 +300,10 @@ static void octeon_irq_ciu1_disable(unsigned int irq)
 static int octeon_irq_ciu1_set_affinity(unsigned int irq, const struct cpumask *dest)
 {
        int cpu;
+       unsigned long flags;
        int bit = irq - OCTEON_IRQ_WDOG0;       /* Bit 0-63 of EN1 */
 
-       write_lock(&octeon_irq_ciu1_rwlock);
+       write_lock_irqsave(&octeon_irq_ciu1_rwlock, flags);
        for_each_online_cpu(cpu) {
                int coreid = cpu_logical_map(cpu);
                uint64_t en1 =
@@ -318,7 +320,7 @@ static int octeon_irq_ciu1_set_affinity(unsigned int irq, const struct cpumask *
         * of them are done.
         */
        cvmx_read_csr(CVMX_CIU_INTX_EN1(cvmx_get_core_num() * 2 + 1));
-       write_unlock(&octeon_irq_ciu1_rwlock);
+       write_unlock_irqrestore(&octeon_irq_ciu1_rwlock, flags);
 
        return 0;
 }