[Qemu-devel] [PATCH v2 45/47] acpi: add acpi_iqr_no_flags() term

[Igor Mammedov]

Signed-off-by: Igor Mammedov <address@hidden>
---
 hw/acpi/acpi-build-utils.c         | 18 ++++++++++++++++++
 include/hw/acpi/acpi-build-utils.h |  1 +
 2 files changed, 19 insertions(+)

diff --git a/hw/acpi/acpi-build-utils.c b/hw/acpi/acpi-build-utils.c
index 58f88cd..59873e3 100644
--- a/hw/acpi/acpi-build-utils.c
+++ b/hw/acpi/acpi-build-utils.c
@@ -511,6 +511,24 @@ AcpiAml acpi_io(acpiIODecode dec, uint16_t min_base, 
uint16_t max_base,
     return var;
 }
 
+/*
+ * ACPI 5.0: 19.5.64 IRQNoFlags (Interrupt Resource Descriptor Macro)
+ *           6.4.2.1 IRQ Descriptor
+*/
+AcpiAml acpi_iqr_no_flags(uint8_t irq)
+{
+    uint16_t irq_mask;
+    AcpiAml var = aml_allocate_internal(0, NON_BLOCK);
+
+    assert(irq < 16);
+    build_append_byte(var.buf, 0x22); /* IRQ descriptor 2 byte form */
+
+    irq_mask = 1U << irq;
+    build_append_byte(var.buf, irq_mask & 0xFF); /* IRQ mask bits[7:0] */
+    build_append_byte(var.buf, irq_mask >> 8); /* IRQ mask bits[15:8] */
+    return var;
+}
+
 /* ACPI 5.0: 20.2.5.4 Type 2 Opcodes Encoding: DefLEqual */
 AcpiAml acpi_equal(AcpiAml arg1, AcpiAml arg2)
 {
diff --git a/include/hw/acpi/acpi-build-utils.h 
b/include/hw/acpi/acpi-build-utils.h
index 868d439..d39b5b1 100644
--- a/include/hw/acpi/acpi-build-utils.h
+++ b/include/hw/acpi/acpi-build-utils.h
@@ -117,6 +117,7 @@ AcpiAml acpi_call4(const char *method, AcpiAml arg1, 
AcpiAml arg2,
                    AcpiAml arg3, AcpiAml arg4);
 AcpiAml acpi_io(acpiIODecode dec, uint16_t min_base, uint16_t max_base,
                 uint8_t aln, uint8_t len);
+AcpiAml acpi_iqr_no_flags(uint8_t irq);
 AcpiAml acpi_operation_region(const char *name, acpiRegionSpace rs,
                               uint32_t offset, uint32_t len);
 AcpiAml acpi_named_field(const char *name, unsigned length);
-- 
1.8.3.1