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[Qemu-devel] [PATCH 21/74] acpi add aml_dma()
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH 21/74] acpi add aml_dma() |
Date: |
Thu, 10 Dec 2015 00:41:15 +0100 |
Signed-off-by: Igor Mammedov <address@hidden>
---
hw/acpi/aml-build.c | 14 ++++++++++++++
include/hw/acpi/aml-build.h | 20 ++++++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 4b1b496..8347299 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1183,6 +1183,20 @@ Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed
min_fixed,
addr_trans, len, flags);
}
+/* ACPI 1.0b: 6.4.2.2 DMA Format/6.4.2.2.1 ASL Macro for DMA Descriptor */
+Aml *aml_dma(AmlDmaType typ, AmlDmaBusMaster bm, AmlTransferSize sz,
+ uint8_t channel)
+{
+ Aml *var = aml_alloc();
+ uint8_t flags = sz | bm << 2 | typ << 5;
+
+ assert(channel < 8);
+ build_append_byte(var->buf, 0x2A); /* Byte 0: DMA Descriptor */
+ build_append_byte(var->buf, 1U << channel); /* Byte 1: _DMA - DmaChannel */
+ build_append_byte(var->buf, flags); /* Byte 2 */
+ return var;
+}
+
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefSleep */
Aml *aml_sleep(uint64_t msec)
{
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 04ef25e..9dd8370 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -35,6 +35,24 @@ struct Aml {
typedef struct Aml Aml;
typedef enum {
+ AML_COMPATIBILITY = 0,
+ AML_TYPEA = 1,
+ AML_TYPEB = 2,
+ AML_TYPEF = 3,
+} AmlDmaType;
+
+typedef enum {
+ AML_NOTBUSMASTER = 0,
+ AML_BUSMASTER = 1,
+} AmlDmaBusMaster;
+
+typedef enum {
+ AML_TRANSFER8 = 0,
+ AML_TRANSFER8_16 = 1,
+ AML_TRANSFER16 = 2,
+} AmlTransferSize;
+
+typedef enum {
AML_DECODE10 = 0,
AML_DECODE16 = 1,
} AmlIODecode;
@@ -278,6 +296,8 @@ Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed,
uint64_t addr_gran, uint64_t addr_min,
uint64_t addr_max, uint64_t addr_trans,
uint64_t len);
+Aml *aml_dma(AmlDmaType typ, AmlDmaBusMaster bm, AmlTransferSize sz,
+ uint8_t channel);
Aml *aml_sleep(uint64_t msec);
/* Block AML object primitives */
--
1.8.3.1
- [Qemu-devel] [PATCH 38/74] pc: acpi: drop unused CPU_STATUS_LEN from DSDT, (continued)
- [Qemu-devel] [PATCH 38/74] pc: acpi: drop unused CPU_STATUS_LEN from DSDT, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 40/74] pc: acpi: cpuhp: move CPMA() method into SSDT, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 41/74] pc: acpi: cpuhp: move CPST() method into SSDT, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 48/74] pc: acpi: move KBD device from DSDT to SSDT, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 53/74] pc: acpi: move PIIX4 isa-bridge and pm devices into SSDT, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 17/74] acpi: add aml_lgreater(), Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 19/74] acpi: add aml_to_hexstring(), Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 18/74] acpi: extend aml_field() to support LockRule, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 21/74] acpi add aml_dma(),
Igor Mammedov <=
- [Qemu-devel] [PATCH 27/74] pc: acpi: memhp: move MHPD.MLCK mutex into SSDT, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 29/74] pc: acpi: memhp: move MHPD.MRST method into SSDT, Igor Mammedov, 2015/12/09
- [Qemu-devel] [PATCH 24/74] acpi: extend aml_interrupt() to support multiple irqs, Igor Mammedov, 2015/12/09
- Re: [Qemu-devel] [PATCH 24/74] acpi: extend aml_interrupt() to support multiple irqs, Michael S. Tsirkin, 2015/12/22