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[PATCH 4/6] hw/dma: Replace alloc() + address_space_init() by address_sp
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH 4/6] hw/dma: Replace alloc() + address_space_init() by address_space_create() |
Date: |
Thu, 19 Aug 2021 16:20:37 +0200 |
Replace g_malloc0() + address_space_init() by address_space_create().
Release the resource in DeviceUnrealize().
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/dma/xlnx-zdma.c | 15 +++++++++------
hw/dma/xlnx_csu_dma.c | 9 ++-------
2 files changed, 11 insertions(+), 13 deletions(-)
diff --git a/hw/dma/xlnx-zdma.c b/hw/dma/xlnx-zdma.c
index fa38a556341..9f6b3fa47c6 100644
--- a/hw/dma/xlnx-zdma.c
+++ b/hw/dma/xlnx-zdma.c
@@ -777,15 +777,17 @@ static void zdma_realize(DeviceState *dev, Error **errp)
};
}
- if (s->dma_mr) {
- s->dma_as = g_malloc0(sizeof(AddressSpace));
- address_space_init(s->dma_as, s->dma_mr, NULL);
- } else {
- s->dma_as = &address_space_memory;
- }
+ s->dma_as = address_space_create(s->dma_mr ?: get_system_memory(), NULL);
s->attr = MEMTXATTRS_UNSPECIFIED;
}
+static void zdma_unrealize(DeviceState *dev)
+{
+ XlnxZDMA *s = XLNX_ZDMA(dev);
+
+ address_space_destroy(s->dma_as);
+}
+
static void zdma_init(Object *obj)
{
XlnxZDMA *s = XLNX_ZDMA(obj);
@@ -827,6 +829,7 @@ static void zdma_class_init(ObjectClass *klass, void *data)
dc->reset = zdma_reset;
dc->realize = zdma_realize;
+ dc->unrealize = zdma_unrealize;
device_class_set_props(dc, zdma_props);
dc->vmsd = &vmstate_zdma;
}
diff --git a/hw/dma/xlnx_csu_dma.c b/hw/dma/xlnx_csu_dma.c
index 0c1c19cab5a..730c0f999ce 100644
--- a/hw/dma/xlnx_csu_dma.c
+++ b/hw/dma/xlnx_csu_dma.c
@@ -648,13 +648,7 @@ static void xlnx_csu_dma_realize(DeviceState *dev, Error
**errp)
s->src_timer = ptimer_init(xlnx_csu_dma_src_timeout_hit,
s, PTIMER_POLICY_DEFAULT);
- if (s->dma_mr) {
- s->dma_as = g_malloc0(sizeof(AddressSpace));
- address_space_init(s->dma_as, s->dma_mr, NULL);
- } else {
- s->dma_as = &address_space_memory;
- }
-
+ s->dma_as = address_space_create(s->dma_mr ?: get_system_memory(), NULL);
s->attr = MEMTXATTRS_UNSPECIFIED;
s->r_size_last_word = 0;
@@ -665,6 +659,7 @@ static void xlnx_csu_dma_unrealize(DeviceState *dev)
XlnxCSUDMA *s = XLNX_CSU_DMA(dev);
ptimer_free(s->src_timer);
+ address_space_destroy(s->dma_as);
}
static const VMStateDescription vmstate_xlnx_csu_dma = {
--
2.31.1
[PATCH 5/6] hw/usb: Replace alloc() + address_space_init() by address_space_create(), Philippe Mathieu-Daudé, 2021/08/19
[RFC PATCH 6/6] memory: Have address_space_create() re-use global &address_space_memory, Philippe Mathieu-Daudé, 2021/08/19