diff options
Diffstat (limited to 'hw/i386/acpi-build.c')
| -rw-r--r-- | hw/i386/acpi-build.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index c0f3c82f93..799efe50cd 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1429,9 +1429,49 @@ static void build_dbg_aml(Aml *table) aml_append(table, scope); } +static Aml *build_link_dev(const char *name, uint8_t uid, Aml *reg) +{ + Aml *dev; + Aml *crs; + Aml *method; + uint32_t irqs[] = {5, 10, 11}; + + dev = aml_device("%s", name); + aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C0F"))); + aml_append(dev, aml_name_decl("_UID", aml_int(uid))); + + crs = aml_resource_template(); + aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, + AML_SHARED, irqs, ARRAY_SIZE(irqs))); + aml_append(dev, aml_name_decl("_PRS", crs)); + + method = aml_method("_STA", 0, AML_NOTSERIALIZED); + aml_append(method, aml_return(aml_call1("IQST", reg))); + aml_append(dev, method); + + method = aml_method("_DIS", 0, AML_NOTSERIALIZED); + aml_append(method, aml_or(reg, aml_int(0x80), reg)); + aml_append(dev, method); + + method = aml_method("_CRS", 0, AML_NOTSERIALIZED); + aml_append(method, aml_return(aml_call1("IQCR", reg))); + aml_append(dev, method); + + method = aml_method("_SRS", 1, AML_NOTSERIALIZED); + aml_append(method, aml_create_dword_field(aml_arg(0), aml_int(5), "PRRI")); + aml_append(method, aml_store(aml_name("PRRI"), reg)); + aml_append(dev, method); + + return dev; + } + static void build_piix4_pci0_int(Aml *table) { + Aml *dev; + Aml *crs; Aml *field; + Aml *method; + uint32_t irqs; Aml *sb_scope = aml_scope("_SB"); field = aml_field("PCI0.ISA.P40C", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE); @@ -1441,6 +1481,43 @@ static void build_piix4_pci0_int(Aml *table) aml_append(field, aml_named_field("PRQ3", 8)); aml_append(sb_scope, field); + aml_append(sb_scope, build_link_dev("LNKA", 0, aml_name("PRQ0"))); + aml_append(sb_scope, build_link_dev("LNKB", 1, aml_name("PRQ1"))); + aml_append(sb_scope, build_link_dev("LNKC", 2, aml_name("PRQ2"))); + aml_append(sb_scope, build_link_dev("LNKD", 3, aml_name("PRQ3"))); + + dev = aml_device("LNKS"); + { + aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C0F"))); + aml_append(dev, aml_name_decl("_UID", aml_int(4))); + + crs = aml_resource_template(); + irqs = 9; + aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, + AML_ACTIVE_HIGH, AML_SHARED, + &irqs, 1)); + aml_append(dev, aml_name_decl("_PRS", crs)); + + /* The SCI cannot be disabled and is always attached to GSI 9, + * so these are no-ops. We only need this link to override the + * polarity to active high and match the content of the MADT. + */ + method = aml_method("_STA", 0, AML_NOTSERIALIZED); + aml_append(method, aml_return(aml_int(0x0b))); + aml_append(dev, method); + + method = aml_method("_DIS", 0, AML_NOTSERIALIZED); + aml_append(dev, method); + + method = aml_method("_CRS", 0, AML_NOTSERIALIZED); + aml_append(method, aml_return(aml_name("_PRS"))); + aml_append(dev, method); + + method = aml_method("_SRS", 1, AML_NOTSERIALIZED); + aml_append(dev, method); + } + aml_append(sb_scope, dev); + aml_append(table, sb_scope); } |