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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "David Gibson" <david@gibson.dropbear.id.au>,
	"Frédéric Barrat" <fbarrat@linux.ibm.com>,
	"Cédric Le Goater" <clg@kaod.org>,
	"Harsh Prateek Bora" <harshpb@linux.ibm.com>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Daniel Henrique Barboza" <danielhb413@gmail.com>,
	qemu-ppc@nongnu.org, "Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH 6/6] hw/intc/spapr_xive: Do not use SysBus API to map local MMIO region
Date: Wed, 18 Oct 2023 15:30:59 +0200	[thread overview]
Message-ID: <20231018133059.85765-7-philmd@linaro.org> (raw)
In-Reply-To: <20231018133059.85765-1-philmd@linaro.org>

There is no point in exposing an internal MMIO region via
SysBus and directly mapping it in the very same device.

Just map it without using the SysBus API.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/intc/spapr_xive.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index 12057ffe5b..199c261b07 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -350,12 +350,12 @@ static void spapr_xive_realize(DeviceState *dev, Error **errp)
      * Map all regions. These will be enabled or disabled at reset and
      * can also be overridden by KVM memory regions if active
      */
-    sysbus_init_mmio(SYS_BUS_DEVICE(xive), &xsrc->esb_mmio);
-    sysbus_mmio_map(SYS_BUS_DEVICE(xive), 0, xive->vc_base);
-    sysbus_init_mmio(SYS_BUS_DEVICE(xive), &end_xsrc->esb_mmio);
-    sysbus_mmio_map(SYS_BUS_DEVICE(xive), 1, xive->end_base);
-    sysbus_init_mmio(SYS_BUS_DEVICE(xive), &xive->tm_mmio);
-    sysbus_mmio_map(SYS_BUS_DEVICE(xive), 2, xive->tm_base);
+    memory_region_add_subregion(get_system_memory(), xive->vc_base,
+                                &xsrc->esb_mmio);
+    memory_region_add_subregion(get_system_memory(), xive->end_base,
+                                &end_xsrc->esb_mmio);
+    memory_region_add_subregion(get_system_memory(), xive->tm_base,
+                                &xive->tm_mmio);
 }
 
 static int spapr_xive_get_eas(XiveRouter *xrtr, uint8_t eas_blk,
-- 
2.41.0



  parent reply	other threads:[~2023-10-18 13:35 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-18 13:30 [PATCH 0/6] hw/ppc: SysBus simplifications Philippe Mathieu-Daudé
2023-10-18 13:30 ` [PATCH 1/6] hw/ppc/pnv_xscom: Rename pnv_xscom_realize(Error **) -> pnv_xscom_init() Philippe Mathieu-Daudé
2023-10-19  5:41   ` Thomas Huth
2023-10-18 13:30 ` [PATCH 2/6] hw/ppc/pnv_xscom: Move sysbus_mmio_map() call within pnv_xscom_init() Philippe Mathieu-Daudé
2023-10-19  5:42   ` Thomas Huth
2023-10-18 13:30 ` [PATCH 3/6] hw/ppc/pnv_xscom: Do not use SysBus API to map local MMIO region Philippe Mathieu-Daudé
2023-10-19  5:43   ` Thomas Huth
2023-10-18 13:30 ` [PATCH 4/6] hw/ppc/pnv: " Philippe Mathieu-Daudé
2023-10-19  5:44   ` Thomas Huth
2023-10-18 13:30 ` [PATCH 5/6] hw/intc/spapr_xive: Move sysbus_init_mmio() calls around Philippe Mathieu-Daudé
2023-10-19  5:45   ` Thomas Huth
2023-10-18 13:30 ` Philippe Mathieu-Daudé [this message]
2023-10-19  5:46   ` [PATCH 6/6] hw/intc/spapr_xive: Do not use SysBus API to map local MMIO region Thomas Huth
2023-10-18 18:28 ` [PATCH 0/6] hw/ppc: SysBus simplifications Philippe Mathieu-Daudé
2023-10-18 23:52 ` Richard Henderson
2023-10-19  8:28 ` LIU Zhiwei

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