powerpc/xive: Replace msleep(x) with msleep(OPAL_BUSY_DELAY_MS)

Replace msleep(x) with with msleep(OPAL_BUSY_DELAY_MS) to document
these sleeps are to wait for opal (firmware).

Signed-off-by: Daniel Klamt <eleon@ele0n.de>
Signed-off-by: Bjoern Noetel <bjoern@br3ak3r.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c
index 311185b9960a1b755d19313d6da55217c73d90c0..39ab5ad58297cfb373b1fa6a40e808b8dc299244 100644 (file)
--- a/arch/powerpc/sysdev/xive/native.c
+++ b/arch/powerpc/sysdev/xive/native.c
@@ -109,7 +109,7 @@ int xive_native_configure_irq(u32 hw_irq, u32 target, u8 prio, u32 sw_irq)
                rc = opal_xive_set_irq_config(hw_irq, target, prio, sw_irq);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
        return rc == 0 ? 0 : -ENXIO;
 }
@@ -163,7 +163,7 @@ int xive_native_configure_queue(u32 vp_id, struct xive_q *q, u8 prio,
                rc = opal_xive_set_queue_info(vp_id, prio, qpage_phys, order, flags);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
        if (rc) {
                pr_err("Error %lld setting queue for prio %d\n", rc, prio);
@@ -190,7 +190,7 @@ static void __xive_native_disable_queue(u32 vp_id, struct xive_q *q, u8 prio)
                rc = opal_xive_set_queue_info(vp_id, prio, 0, 0, 0);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
        if (rc)
                pr_err("Error %lld disabling queue for prio %d\n", rc, prio);
@@ -253,7 +253,7 @@ static int xive_native_get_ipi(unsigned int cpu, struct xive_cpu *xc)
        for (;;) {
                irq = opal_xive_allocate_irq(chip_id);
                if (irq == OPAL_BUSY) {
-                       msleep(1);
+                       msleep(OPAL_BUSY_DELAY_MS);
                        continue;
                }
                if (irq < 0) {
@@ -275,7 +275,7 @@ u32 xive_native_alloc_irq(void)
                rc = opal_xive_allocate_irq(OPAL_XIVE_ANY_CHIP);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
        if (rc < 0)
                return 0;
@@ -289,7 +289,7 @@ void xive_native_free_irq(u32 irq)
                s64 rc = opal_xive_free_irq(irq);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
 }
 EXPORT_SYMBOL_GPL(xive_native_free_irq);
@@ -305,7 +305,7 @@ static void xive_native_put_ipi(unsigned int cpu, struct xive_cpu *xc)
        for (;;) {
                rc = opal_xive_free_irq(xc->hw_ipi);
                if (rc == OPAL_BUSY) {
-                       msleep(1);
+                       msleep(OPAL_BUSY_DELAY_MS);
                        continue;
                }
                xc->hw_ipi = 0;
@@ -400,7 +400,7 @@ static void xive_native_setup_cpu(unsigned int cpu, struct xive_cpu *xc)
                rc = opal_xive_set_vp_info(vp, OPAL_XIVE_VP_ENABLED, 0);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
        if (rc) {
                pr_err("Failed to enable pool VP on CPU %d\n", cpu);
@@ -444,7 +444,7 @@ static void xive_native_teardown_cpu(unsigned int cpu, struct xive_cpu *xc)
                rc = opal_xive_set_vp_info(vp, 0, 0);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
 }
 
@@ -645,7 +645,7 @@ u32 xive_native_alloc_vp_block(u32 max_vcpus)
                rc = opal_xive_alloc_vp_block(order);
                switch (rc) {
                case OPAL_BUSY:
-                       msleep(1);
+                       msleep(OPAL_BUSY_DELAY_MS);
                        break;
                case OPAL_XIVE_PROVISIONING:
                        if (!xive_native_provision_pages())
@@ -687,7 +687,7 @@ int xive_native_enable_vp(u32 vp_id, bool single_escalation)
                rc = opal_xive_set_vp_info(vp_id, flags, 0);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
        return rc ? -EIO : 0;
 }
@@ -701,7 +701,7 @@ int xive_native_disable_vp(u32 vp_id)
                rc = opal_xive_set_vp_info(vp_id, 0, 0);
                if (rc != OPAL_BUSY)
                        break;
-               msleep(1);
+               msleep(OPAL_BUSY_DELAY_MS);
        }
        return rc ? -EIO : 0;
 }