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devices: acpi: Add generic event controller

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Rather than overloading the GED device with the detection of what the
underlying event means move that to a new generic event controller.  The
advantage of this is that that the generic event controller can have a
_CRS that covers the memory for the OperationRegion (the ged driver
rejects _CRS entries that contain anything beyond the single interrupt)

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2022-09-02 12:08:21 +01:00
parent b3bef3adda
commit 4465bbaf38
1 changed files with 33 additions and 10 deletions
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43
devices/src/acpi.rs
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@ -105,18 +105,17 @@ impl BusDevice for AcpiGedDevice {
impl Aml for AcpiGedDevice {
fn append_aml_bytes(&self, bytes: &mut Vec<u8>) {
aml::Device::new(
"_SB_.GED_".into(),
"_SB_.GEC_".into(),
vec![
&aml::Name::new("_HID".into(), &"ACPI0013"),
&aml::Name::new("_UID".into(), &aml::ZERO),
&aml::Name::new("_HID".into(), &aml::EisaName::new("PNP0A06")),
&aml::Name::new("_UID".into(), &"Generic Event Controller"),
&aml::Name::new(
"_CRS".into(),
&aml::ResourceTemplate::new(vec![&aml::Interrupt::new(
&aml::ResourceTemplate::new(vec![&aml::AddressSpace::new_memory(
aml::AddressSpaceCachable::NotCacheable,
true,
true,
false,
false,
self.ged_irq,
self.address.0 as u64,
self.address.0 + GED_DEVICE_ACPI_SIZE as u64 - 1,
)]),
),
&aml::OpRegion::new(
@ -132,8 +131,8 @@ impl Aml for AcpiGedDevice {
vec![aml::FieldEntry::Named(*b"GDAT", 8)],
),
&aml::Method::new(
"_EVT".into(),
1,
"ESCN".into(),
0,
true,
vec![
&aml::Store::new(&aml::Local(0), &aml::Path::new("GDAT")),
@ -164,6 +163,30 @@ impl Aml for AcpiGedDevice {
),
],
)
.append_aml_bytes(bytes);
aml::Device::new(
"_SB_.GED_".into(),
vec![
&aml::Name::new("_HID".into(), &"ACPI0013"),
&aml::Name::new("_UID".into(), &aml::ZERO),
&aml::Name::new(
"_CRS".into(),
&aml::ResourceTemplate::new(vec![&aml::Interrupt::new(
true,
true,
false,
false,
self.ged_irq,
)]),
),
&aml::Method::new(
"_EVT".into(),
1,
true,
vec![&aml::MethodCall::new("\\_SB_.GEC_.ESCN".into(), vec![])],
),
],
)
.append_aml_bytes(bytes)
}
}