diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2023-05-09 16:39:57 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-05-26 13:57:47 +0000 |
| commit | 21594fd161957920a0bce94e24a52e9cab7f5397 (patch) | |
| tree | e29efe951aaa5e12d4f2fc16d4e1ddefdf542507 /src | |
| parent | 5c1455495e8d2030473d8194fcf2e1d1111696b7 (diff) | |
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>
Diffstat (limited to 'src')
| -rw-r--r-- | src/acpi/acpigen.c | 36 | ||||
| -rw-r--r-- | src/include/acpi/acpigen.h | 1 |
2 files changed, 37 insertions, 0 deletions
diff --git a/src/acpi/acpigen.c b/src/acpi/acpigen.c index fb84cd18a3..7118d1ceec 100644 --- a/src/acpi/acpigen.c +++ b/src/acpi/acpigen.c @@ -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); diff --git a/src/include/acpi/acpigen.h b/src/include/acpi/acpigen.h index 614cd6e713..2147990944 100644 --- a/src/include/acpi/acpigen.h +++ b/src/include/acpi/acpigen.h @@ -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); |