[Qemu-devel] [RFC PATCH 09/11] hw/acpi/acpi-build-utils: Add acpi_fixed_memory32() and acpi_extended_irq()

[Shannon Zhao]

Add acpi_fixed_memory32() for describing device mmio region in resource 
template.
Add acpi_extended_irq() for describing device interrupt in resource template.
These can be used to generating DSDT table for ACPI on ARM.

Signed-off-by: Shannon Zhao <address@hidden>
---
 hw/acpi/acpi-build-utils.c         |   42 ++++++++++++++++++++++++++++++++++++
 include/hw/acpi/acpi-build-utils.h |    2 +
 2 files changed, 44 insertions(+), 0 deletions(-)

diff --git a/hw/acpi/acpi-build-utils.c b/hw/acpi/acpi-build-utils.c
index 59873e3..211c4d3 100644
--- a/hw/acpi/acpi-build-utils.c
+++ b/hw/acpi/acpi-build-utils.c
@@ -493,6 +493,48 @@ AcpiAml acpi_call4(const char *method, AcpiAml arg1, 
AcpiAml arg2,
 }
 
 /*
+ * ACPI 5.1: 19.5.80 Memory32Fixed (Memory Resource Descriptor Macro)
+ *           6.4.2 Small Resource Data Type
+ */
+AcpiAml acpi_fixed_memory32(uint64_t addr, uint64_t size, uint8_t rw_flag)
+{
+    AcpiAml var = aml_allocate_internal(0, NON_BLOCK);
+    build_append_byte(var.buf, 0x86); /* Extended irq descriptor */
+    build_append_byte(var.buf, 9);
+    build_append_byte(var.buf, 0);
+    build_append_byte(var.buf, rw_flag);
+    build_append_byte(var.buf, addr & 0xff);
+    build_append_byte(var.buf, (addr >> 8) & 0xff);
+    build_append_byte(var.buf, (addr >> 16) & 0xff);
+    build_append_byte(var.buf, (addr >> 24) & 0xff);
+
+    build_append_byte(var.buf, size & 0xff);
+    build_append_byte(var.buf, (size >> 8) & 0xff);
+    build_append_byte(var.buf, (size >> 16) & 0xff);
+    build_append_byte(var.buf, (size >> 24) & 0xff);
+    return var;
+}
+
+/*
+ * ACPI 5.1: 19.5.61 Interrupt (Interrupt Resource Descriptor Macro)
+ *           6.4.2 Small Resource Data Type
+ */
+AcpiAml acpi_extended_irq(uint8_t irq_flags, int irq)
+{
+    AcpiAml var = aml_allocate_internal(0, NON_BLOCK);
+    build_append_byte(var.buf, 0x89); /* Extended irq descriptor */
+    build_append_byte(var.buf, 6);
+    build_append_byte(var.buf, 0);
+    build_append_byte(var.buf, irq_flags);
+    build_append_byte(var.buf, 0x01);
+    build_append_byte(var.buf, irq & 0xff);
+    build_append_byte(var.buf, (irq >> 8) & 0xff);
+    build_append_byte(var.buf, (irq >> 16) & 0xff);
+    build_append_byte(var.buf, (irq >> 24) & 0xff);
+    return var;
+}
+
+/*
  * ACPI 5.0: 19.5.62 IO (IO Resource Descriptor Macro)
  *           6.4.2 Small Resource Data Type
 */
diff --git a/include/hw/acpi/acpi-build-utils.h 
b/include/hw/acpi/acpi-build-utils.h
index d39b5b1..bfed546 100644
--- a/include/hw/acpi/acpi-build-utils.h
+++ b/include/hw/acpi/acpi-build-utils.h
@@ -115,6 +115,8 @@ AcpiAml acpi_call3(const char *method, AcpiAml arg1, 
AcpiAml arg2,
                    AcpiAml arg3);
 AcpiAml acpi_call4(const char *method, AcpiAml arg1, AcpiAml arg2,
                    AcpiAml arg3, AcpiAml arg4);
+AcpiAml acpi_fixed_memory32(uint64_t addr, uint64_t size, uint8_t rw_flag);
+AcpiAml acpi_extended_irq(uint8_t irq_flags, int irq);
 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);
-- 
1.7.1