[Qemu-devel] [RFC PATCH 01/17] hw/audio: 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 <tony.ngu...@bt.com>
---
 hw/audio/cs4231.c          | 2 +-
 hw/audio/marvell_88w8618.c | 2 +-
 hw/audio/milkymist-ac97.c  | 2 +-
 hw/audio/pl041.c           | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/audio/cs4231.c b/hw/audio/cs4231.c
index b5d3e895ce..1ff9093efa 100644
--- a/hw/audio/cs4231.c
+++ b/hw/audio/cs4231.c
@@ -133,7 +133,7 @@ static void cs_mem_write(void *opaque, hwaddr addr,
 static const MemoryRegionOps cs_mem_ops = {
     .read = cs_mem_read,
     .write = cs_mem_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_BIG_ENDIAN,
 };
 
 static const VMStateDescription vmstate_cs4231 = {
diff --git a/hw/audio/marvell_88w8618.c b/hw/audio/marvell_88w8618.c
index 883ef74c8b..da1ab89ce6 100644
--- a/hw/audio/marvell_88w8618.c
+++ b/hw/audio/marvell_88w8618.c
@@ -242,7 +242,7 @@ static void mv88w8618_audio_reset(DeviceState *d)
 static const MemoryRegionOps mv88w8618_audio_ops = {
     .read = mv88w8618_audio_read,
     .write = mv88w8618_audio_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
 static void mv88w8618_audio_init(Object *obj)
diff --git a/hw/audio/milkymist-ac97.c b/hw/audio/milkymist-ac97.c
index 6d409eff1b..897dfff85a 100644
--- a/hw/audio/milkymist-ac97.c
+++ b/hw/audio/milkymist-ac97.c
@@ -177,7 +177,7 @@ static const MemoryRegionOps ac97_mmio_ops = {
         .min_access_size = 4,
         .max_access_size = 4,
     },
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_BIG_ENDIAN,
 };
 
 static void ac97_in_cb(void *opaque, int avail_b)
diff --git a/hw/audio/pl041.c b/hw/audio/pl041.c
index c30417d46d..5803bfcf0c 100644
--- a/hw/audio/pl041.c
+++ b/hw/audio/pl041.c
@@ -522,7 +522,7 @@ static void pl041_device_reset(DeviceState *d)
 static const MemoryRegionOps pl041_ops = {
     .read = pl041_read,
     .write = pl041_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
+    .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
 static void pl041_init(Object *obj)
-- 
2.23.0