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hw/ppc/pnv: Do not use SysBus API to map local MMIO region

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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.

Transformation done using the following coccinelle script:

  @@
  expression sbdev;
  expression index;
  expression addr;
  expression subregion;
  @@
  -    sysbus_init_mmio(sbdev, subregion);
       ... when != sbdev
  -    sysbus_mmio_map(sbdev, index, addr);
  +    memory_region_add_subregion(get_system_memory(), addr, subregion);

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20231019131647.19690-6-philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé
2023-10-19 23:13:28 +02:00
parent bddb677544
commit bf3b9754b7
1 changed files with 2 additions and 3 deletions
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hw/ppc/pnv.c
+2 -3
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@@ -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++) {