[Qemu-devel] [RFC PATCH 05/17] hw/dma: Declare device little or big endian

[Tony Nguyen]

For each device declared with DEVICE_NATIVE_ENDIAN, find the set of
targets from the set of target/hw/*/device.o.

If the set of targets are all little or all big endian, re-declare
the device endianness as DEVICE_LITTLE_ENDIAN or DEVICE_BIG_ENDIAN
respectively.

This *naive* deduction may result in genuinely native endian devices
being incorrectly declared as little or big endian, but should not
introduce regressions for current targets.

These devices should be re-declared as DEVICE_NATIVE_ENDIAN if 1) it
has a new target with an opposite endian or 2) someone informed knows
better =)

Signed-off-by: Tony Nguyen <address@hidden>
---
 hw/dma/bcm2835_dma.c | 4 ++--
 hw/dma/etraxfs_dma.c | 2 +-
 hw/dma/pl080.c       | 2 +-
 hw/dma/pl330.c       | 2 +-
 hw/dma/puv3_dma.c    | 2 +-
 hw/dma/sparc32_dma.c | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/hw/dma/bcm2835_dma.c b/hw/dma/bcm2835_dma.c
index 192bd377a0..550e67f686 100644
--- a/hw/dma/bcm2835_dma.c
+++ b/hw/dma/bcm2835_dma.c
@@ -290,7 +290,7 @@ static void bcm2835_dma15_write(void *opaque, hwaddr 
offset, uint64_t value,
 static const MemoryRegionOps bcm2835_dma0_ops = {
     .read = bcm2835_dma0_read,
     .write = bcm2835_dma0_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
     .valid.min_access_size = 4,
     .valid.max_access_size = 4,
 };
@@ -298,7 +298,7 @@ static const MemoryRegionOps bcm2835_dma0_ops = {
 static const MemoryRegionOps bcm2835_dma15_ops = {
     .read = bcm2835_dma15_read,
     .write = bcm2835_dma15_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
     .valid.min_access_size = 4,
     .valid.max_access_size = 4,
 };
diff --git a/hw/dma/etraxfs_dma.c b/hw/dma/etraxfs_dma.c
index 47e1c6df12..b4e3f83ca4 100644
--- a/hw/dma/etraxfs_dma.c
+++ b/hw/dma/etraxfs_dma.c
@@ -700,7 +700,7 @@ dma_write(void *opaque, hwaddr addr,
 static const MemoryRegionOps dma_ops = {
        .read = dma_read,
        .write = dma_write,
-       .endianness = DEVICE_NATIVE_ENDIAN,
+       .endianness = DEVICE_LITTLE_ENDIAN,
        .valid = {
                .min_access_size = 1,
                .max_access_size = 4
diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c
index 52ba23f4bf..cbdd1849cd 100644
--- a/hw/dma/pl080.c
+++ b/hw/dma/pl080.c
@@ -350,7 +350,7 @@ static void pl080_write(void *opaque, hwaddr offset,
 static const MemoryRegionOps pl080_ops = {
     .read = pl080_read,
     .write = pl080_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
 static void pl080_reset(DeviceState *dev)
diff --git a/hw/dma/pl330.c b/hw/dma/pl330.c
index f2bb2d9ac1..a9216680ef 100644
--- a/hw/dma/pl330.c
+++ b/hw/dma/pl330.c
@@ -1496,7 +1496,7 @@ static uint64_t pl330_iomem_read(void *opaque, hwaddr 
offset,
 static const MemoryRegionOps pl330_ops = {
     .read = pl330_iomem_read,
     .write = pl330_iomem_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
     .impl = {
         .min_access_size = 4,
         .max_access_size = 4,
diff --git a/hw/dma/puv3_dma.c b/hw/dma/puv3_dma.c
index 5488d388a9..1577056715 100644
--- a/hw/dma/puv3_dma.c
+++ b/hw/dma/puv3_dma.c
@@ -74,7 +74,7 @@ static const MemoryRegionOps puv3_dma_ops = {
         .min_access_size = 4,
         .max_access_size = 4,
     },
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
 static void puv3_dma_realize(DeviceState *dev, Error **errp)
diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c
index 0e5bbcdc7f..bf76f2e558 100644
--- a/hw/dma/sparc32_dma.c
+++ b/hw/dma/sparc32_dma.c
@@ -226,7 +226,7 @@ static void dma_mem_write(void *opaque, hwaddr addr,
 static const MemoryRegionOps dma_mem_ops = {
     .read = dma_mem_read,
     .write = dma_mem_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_BIG_ENDIAN,
     .valid = {
         .min_access_size = 4,
         .max_access_size = 4,
-- 
2.23.0