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physmem: Move TCG IOTLB methods around

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The next commit will restrict TCG specific code in physmem.c
using some #ifdef'ry. In order to keep it simple, move
iotlb_to_section() and memory_region_section_get_iotlb()
around close together.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250424202412.91612-11-philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2025-04-24 22:24:09 +02:00 • committed by Richard Henderson
parent 98db62318a
commit 1381ea53a8
1 changed files with 25 additions and 25 deletions
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50
system/physmem.c
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@ -746,6 +746,31 @@ translate_fail:
return &d->map.sections[PHYS_SECTION_UNASSIGNED];
}
MemoryRegionSection *iotlb_to_section(CPUState *cpu,
hwaddr index, MemTxAttrs attrs)
{
int asidx = cpu_asidx_from_attrs(cpu, attrs);
CPUAddressSpace *cpuas = &cpu->cpu_ases[asidx];
AddressSpaceDispatch *d = cpuas->memory_dispatch;
int section_index = index & ~TARGET_PAGE_MASK;
MemoryRegionSection *ret;
assert(section_index < d->map.sections_nb);
ret = d->map.sections + section_index;
assert(ret->mr);
assert(ret->mr->ops);
return ret;
}
/* Called from RCU critical section */
hwaddr memory_region_section_get_iotlb(CPUState *cpu,
MemoryRegionSection *section)
{
AddressSpaceDispatch *d = flatview_to_dispatch(section->fv);
return section - d->map.sections;
}
void cpu_address_space_init(CPUState *cpu, int asidx,
const char *prefix, MemoryRegion *mr)
{
@ -1002,14 +1027,6 @@ bool cpu_physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
return false;
}
/* Called from RCU critical section */
hwaddr memory_region_section_get_iotlb(CPUState *cpu,
MemoryRegionSection *section)
{
AddressSpaceDispatch *d = flatview_to_dispatch(section->fv);
return section - d->map.sections;
}
static int subpage_register(subpage_t *mmio, uint32_t start, uint32_t end,
uint16_t section);
static subpage_t *subpage_init(FlatView *fv, hwaddr base);
@ -2669,23 +2686,6 @@ static uint16_t dummy_section(PhysPageMap *map, FlatView *fv, MemoryRegion *mr)
return phys_section_add(map, &section);
}
MemoryRegionSection *iotlb_to_section(CPUState *cpu,
hwaddr index, MemTxAttrs attrs)
{
int asidx = cpu_asidx_from_attrs(cpu, attrs);
CPUAddressSpace *cpuas = &cpu->cpu_ases[asidx];
AddressSpaceDispatch *d = cpuas->memory_dispatch;
int section_index = index & ~TARGET_PAGE_MASK;
MemoryRegionSection *ret;
assert(section_index < d->map.sections_nb);
ret = d->map.sections + section_index;
assert(ret->mr);
assert(ret->mr->ops);
return ret;
}
static void io_mem_init(void)
{
memory_region_init_io(&io_mem_unassigned, NULL, &unassigned_mem_ops, NULL,