[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-ppc] [PATCH v3 4/7] sysbus: Expose MMIO enumeration helper
From: |
Alexander Graf |
Subject: |
[Qemu-ppc] [PATCH v3 4/7] sysbus: Expose MMIO enumeration helper |
Date: |
Wed, 24 Sep 2014 17:22:20 +0200 |
Sysbus devices have a range of MMIO regions they expose. The exact number
of regions is device specific and internal information to the device model.
Expose whether a region exists via a public interface. That way our platform
bus enumeration code can dynamically determine how many regions exist.
Signed-off-by: Alexander Graf <address@hidden>
---
hw/core/sysbus.c | 6 ++++++
include/hw/sysbus.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 945dec5..84af593 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -110,6 +110,12 @@ void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq
irq)
qdev_connect_gpio_out_named(DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ, n, irq);
}
+/* Check whether an MMIO region exists */
+bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n)
+{
+ return (n < dev->num_mmio);
+}
+
static void sysbus_mmio_map_common(SysBusDevice *dev, int n, hwaddr addr,
bool may_overlap, int priority)
{
diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
index 6b3d336..d76dfee 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -68,6 +68,7 @@ void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t
ioport, pio_addr_t size);
bool sysbus_has_irq(SysBusDevice *dev, int n);
+bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n);
void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
bool sysbus_is_irq_connected(SysBusDevice *dev, int n);
qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n);
--
1.8.1.4
[Qemu-ppc] [PATCH v3 4/7] sysbus: Expose MMIO enumeration helper,
Alexander Graf <=
[Qemu-ppc] [PATCH v3 2/7] sysbus: Make devices spawnable via -device, Alexander Graf, 2014/09/24
[Qemu-ppc] [PATCH v3 7/7] e500: Add support for eTSEC in device tree, Alexander Graf, 2014/09/24
[Qemu-ppc] [PATCH v3 3/7] sysbus: Expose IRQ enumeration helpers, Alexander Graf, 2014/09/24
Re: [Qemu-ppc] [PATCH v3 0/7] Dynamic sysbus device allocation support, Paolo Bonzini, 2014/09/24