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 4/6] hw/ppc/pnv: Do not use SysBus API to map local MMIO region
Date: Wed, 18 Oct 2023 15:30:57 +0200 [thread overview]
Message-ID: <20231018133059.85765-5-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/ppc/pnv.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 10158f7684..c0e34fffbc 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1217,10 +1217,9 @@ static void pnv_chip_icp_realize(Pnv8Chip *chip8, Error **errp)
name = g_strdup_printf("icp-%x", chip->chip_id);
memory_region_init(&chip8->icp_mmio, OBJECT(chip), name, PNV_ICP_SIZE);
- sysbus_init_mmio(SYS_BUS_DEVICE(chip), &chip8->icp_mmio);
g_free(name);
-
- sysbus_mmio_map(SYS_BUS_DEVICE(chip), 1, PNV_ICP_BASE(chip));
+ memory_region_add_subregion(get_system_memory(), PNV_ICP_BASE(chip),
+ &chip8->icp_mmio);
/* Map the ICP registers for each thread */
for (i = 0; i < chip->nr_cores; i++) {
--
2.41.0
next prev parent reply other threads:[~2023-10-18 13:32 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 ` Philippe Mathieu-Daudé [this message]
2023-10-19 5:44 ` [PATCH 4/6] hw/ppc/pnv: " 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 ` [PATCH 6/6] hw/intc/spapr_xive: Do not use SysBus API to map local MMIO region Philippe Mathieu-Daudé
2023-10-19 5:46 ` 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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