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acpi/acpigen: add acpigen_resource_mmio to generate MMIO resource 

Add the acpigen_resource_mmio helper function to generate an MMIO range
resource.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I38d55dfcc2892bcb5d253a3aef6ed993cfdba0a5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75045
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This commit is contained in:
Felix Held 2023-05-09 16:39:57 +02:00
parent 5c1455495e
commit 21594fd161
2 changed files with 37 additions and 0 deletions
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36
src/acpi/acpigen.c
View File

@ -2254,6 +2254,42 @@ void acpigen_resource_io(u16 io_base, u16 io_limit)
io_limit - io_base + 1); /* length */
}
static void acpigen_resource_mmio32(u32 mmio_base, u32 mmio_limit, u16 type_flags)
{
acpigen_resource_dword(RSRC_TYPE_MEM, /* res_type */
ADDR_SPACE_GENERAL_FLAG_MAX_FIXED
| ADDR_SPACE_GENERAL_FLAG_MIN_FIXED
| ADDR_SPACE_GENERAL_FLAG_DEC_POS, /* gen_flags */
type_flags, /* type_flags */
0, /* gran */
mmio_base, /* range_min */
mmio_limit, /* range_max */
0x0, /* translation */
mmio_limit - mmio_base + 1); /* length */
}
static void acpigen_resource_mmio64(u64 mmio_base, u64 mmio_limit, u16 type_flags)
{
acpigen_resource_qword(RSRC_TYPE_MEM, /* res_type */
ADDR_SPACE_GENERAL_FLAG_MAX_FIXED
| ADDR_SPACE_GENERAL_FLAG_MIN_FIXED
| ADDR_SPACE_GENERAL_FLAG_DEC_POS, /* gen_flags */
type_flags, /* type_flags */
0, /* gran */
mmio_base, /* range_min */
mmio_limit, /* range_max */
0x0, /* translation */
mmio_limit - mmio_base + 1); /* length */
}
void acpigen_resource_mmio(u64 mmio_base, u64 mmio_limit, u16 type_flags)
{
if (mmio_base < 4ULL * GiB && mmio_limit < 4ULL * GiB)
acpigen_resource_mmio32(mmio_base, mmio_limit, type_flags);
else
acpigen_resource_mmio64(mmio_base, mmio_limit, type_flags);
}
void acpigen_write_ADR(uint64_t adr)
{
acpigen_write_name_qword("_ADR", adr);

1
src/include/acpi/acpigen.h
View File

@ -690,6 +690,7 @@ void acpigen_resource_qword(u16 res_type, u16 gen_flags, u16 type_flags,
void acpigen_resource_bus_number(u16 bus_base, u16 bus_limit);
void acpigen_resource_io(u16 io_base, u16 io_limit);
void acpigen_resource_mmio(u64 mmio_base, u64 mmio_limit, u16 type_flags);
/* Emits Notify(namestr, value) */
void acpigen_notify(const char *namestr, int value);