diff mbox series

[V4,4/4] target-i386: add i440fx 0xcf8 port as coalesced_pio

Message ID 1535199590-68475-5-git-send-email-peng.hao2@zte.com.cn (mailing list archive)
State New, archived
Headers show
Series introduce coalesced pio support | expand

Commit Message

Peng Hao Aug. 25, 2018, 12:19 p.m. UTC
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
---
 hw/pci-host/piix.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Liran Alon Aug. 25, 2018, 11:29 p.m. UTC | #1
> On 25 Aug 2018, at 15:19, Peng Hao <peng.hao2@zte.com.cn> wrote:
> 
> diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
> index 0e60834..da73743 100644
> --- a/hw/pci-host/piix.c
> +++ b/hw/pci-host/piix.c
> @@ -327,6 +327,10 @@ static void i440fx_pcihost_realize(DeviceState *dev, Error **errp)
> 
>     sysbus_add_io(sbd, 0xcfc, &s->data_mem);
>     sysbus_init_ioports(sbd, 0xcfc, 4);
> +
> +    /* register i440fx 0xcf8 port as coalesced pio */
> +    memory_region_set_flush_coalesced(&s->data_mem);
> +    memory_region_add_coalescing(&s->conf_mem, 0, 4);
> }
> 

Is there a reason to not register this port as coalesced PIO also for Q35?
In q35_host_realize()?
If not, I would do that as an extra patch as part of this series.

-Liran
diff mbox series

Patch

diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 0e60834..da73743 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -327,6 +327,10 @@  static void i440fx_pcihost_realize(DeviceState *dev, Error **errp)
 
     sysbus_add_io(sbd, 0xcfc, &s->data_mem);
     sysbus_init_ioports(sbd, 0xcfc, 4);
+
+    /* register i440fx 0xcf8 port as coalesced pio */
+    memory_region_set_flush_coalesced(&s->data_mem);
+    memory_region_add_coalescing(&s->conf_mem, 0, 4);
 }
 
 static void i440fx_realize(PCIDevice *dev, Error **errp)