[PATCH] hw/misc/edu: Rename macros indicating the direction of DMA operations

[Jason Chien]

This commit renames the macros to accurately reflect the direction of
DMA operations.

EDU_DMA_TO_PCI now represents reading memory content into the EDU buffer,
while EDU_DMA_FROM_PCI represents writing EDU buffer content to memory.

The previous naming was misleading, as the definitions were reversed.

Signed-off-by: Jason Chien <jason.ch...@sifive.com>
---
 hw/misc/edu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/misc/edu.c b/hw/misc/edu.c
index 504178b4a2..1353c67dc2 100644
--- a/hw/misc/edu.c
+++ b/hw/misc/edu.c
@@ -63,8 +63,8 @@ struct EduState {
 
 #define EDU_DMA_RUN             0x1
 #define EDU_DMA_DIR(cmd)        (((cmd) & 0x2) >> 1)
-# define EDU_DMA_FROM_PCI       0
-# define EDU_DMA_TO_PCI         1
+# define EDU_DMA_TO_PCI         0
+# define EDU_DMA_FROM_PCI       1
 #define EDU_DMA_IRQ             0x4
     struct dma_state {
         dma_addr_t src;
@@ -146,7 +146,7 @@ static void edu_dma_timer(void *opaque)
         return;
     }
 
-    if (EDU_DMA_DIR(edu->dma.cmd) == EDU_DMA_FROM_PCI) {
+    if (EDU_DMA_DIR(edu->dma.cmd) == EDU_DMA_TO_PCI) {
         uint64_t dst = edu->dma.dst;
         edu_check_range(dst, edu->dma.cnt, DMA_START, DMA_SIZE);
         dst -= DMA_START;
-- 
2.43.2