[cadcdev-svn-commits] [SCM] branch master updated. v2.0.0-70-g8948710

[Lawrence S. <ljs...@us...>]

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- Log -----------------------------------------------------------------
commit 89487109972dec695af7b43c863a4373ab127948
Author: Lawrence Sebald <ljs...@us...>
Date:   Wed Apr 30 21:47:29 2014 -0400

    Invalidate the operand cache on dma reads in g1ata.

-----------------------------------------------------------------------

Summary of changes:
 kernel/arch/dreamcast/hardware/g1ata.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/arch/dreamcast/hardware/g1ata.c b/kernel/arch/dreamcast/hardware/g1ata.c
index 487a03d..5874bab 100644
--- a/kernel/arch/dreamcast/hardware/g1ata.c
+++ b/kernel/arch/dreamcast/hardware/g1ata.c
@@ -603,6 +603,9 @@ int g1_ata_read_lba_dma(uint64_t sector, size_t count, uint16_t *buf,
         return -1;
     }
 
+    /* Invalidate the dcache over the range of the data. */
+    dcache_inval_range((uint32)buf, count * 512);
+
     /* Lock the mutex. It will be unlocked later in the IRQ handler. */
     if(g1_ata_mutex_lock())
         return -1;


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A pseudo Operating System for the Dreamcast.