[Qemu-devel] [PULL 19/24] sd/sdhci:ADMA: fix interrupt

[Peter Maydell]

From: Peter Crosthwaite <address@hidden>

The end of transfer check was occurring and potentially returning before
the interrupt flag was checked. This means the interrupt will be missed
if it occurs on the last packet. Fix by checking for the interrupt
before checking for the end of transfer.

Signed-off-by: Peter Crosthwaite <address@hidden>
Reviewed-by: Igor Mitsyanko <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
 hw/sd/sdhci.c |   18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index 15345dc..e64899c 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -730,6 +730,15 @@ static void sdhci_do_adma(SDHCIState *s)
             break;
         }
 
+        if (dscr.attr & SDHC_ADMA_ATTR_INT) {
+            DPRINT_L1("ADMA interrupt: admasysaddr=0x%lx\n", s->admasysaddr);
+            if (s->norintstsen & SDHC_NISEN_DMA) {
+                s->norintsts |= SDHC_NIS_DMA;
+            }
+
+            sdhci_update_irq(s);
+        }
+
         /* ADMA transfer terminates if blkcnt == 0 or by END attribute */
         if (((s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&
                     (s->blkcnt == 0)) || (dscr.attr & SDHC_ADMA_ATTR_END)) {
@@ -752,15 +761,6 @@ static void sdhci_do_adma(SDHCIState *s)
             return;
         }
 
-        if (dscr.attr & SDHC_ADMA_ATTR_INT) {
-            DPRINT_L1("ADMA interrupt: admasysaddr=0x%lx\n", s->admasysaddr);
-            if (s->norintstsen & SDHC_NISEN_DMA) {
-                s->norintsts |= SDHC_NIS_DMA;
-            }
-
-            sdhci_update_irq(s);
-            return;
-        }
     }
 
     /* we have unfinished business - reschedule to continue ADMA */
-- 
1.7.9.5