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[Qemu-devel] [PULL 38/55] acpi: add aml_mutex(), aml_acquire(), aml_rele
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 38/55] acpi: add aml_mutex(), aml_acquire(), aml_release() |
Date: |
Tue, 22 Dec 2015 18:54:29 +0200 |
From: Xiao Guangrong <address@hidden>
Signed-off-by: Xiao Guangrong <address@hidden>
Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
include/hw/acpi/aml-build.h | 3 +++
hw/acpi/aml-build.c | 33 +++++++++++++++++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index fba8f25..4831c55 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -304,6 +304,9 @@ Aml *aml_package(uint8_t num_elements);
Aml *aml_buffer(int buffer_size, uint8_t *byte_list);
Aml *aml_resource_template(void);
Aml *aml_field(const char *name, AmlAccessType type, AmlUpdateRule rule);
+Aml *aml_mutex(const char *name, uint8_t sync_level);
+Aml *aml_acquire(Aml *mutex, uint16_t timeout);
+Aml *aml_release(Aml *mutex);
Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name);
Aml *aml_varpackage(uint32_t num_elements);
Aml *aml_touuid(const char *uuid);
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 60246eb..c4120ef 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1267,6 +1267,39 @@ Aml *aml_sizeof(Aml *arg)
return var;
}
+/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMutex */
+Aml *aml_mutex(const char *name, uint8_t sync_level)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+ build_append_byte(var->buf, 0x01); /* MutexOp */
+ build_append_namestring(var->buf, "%s", name);
+ assert(!(sync_level & 0xF0));
+ build_append_byte(var->buf, sync_level);
+ return var;
+}
+
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAcquire */
+Aml *aml_acquire(Aml *mutex, uint16_t timeout)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+ build_append_byte(var->buf, 0x23); /* AcquireOp */
+ aml_append(var, mutex);
+ build_append_int_noprefix(var->buf, timeout, sizeof(timeout));
+ return var;
+}
+
+/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefRelease */
+Aml *aml_release(Aml *mutex)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+ build_append_byte(var->buf, 0x27); /* ReleaseOp */
+ aml_append(var, mutex);
+ return var;
+}
+
void
build_header(GArray *linker, GArray *table_data,
AcpiTableHeader *h, const char *sig, int len, uint8_t rev,
--
MST
- [Qemu-devel] [PULL 28/55] hw/compat.h: Change indentation of HW_COMPAT_* to 4 spaces, (continued)
- [Qemu-devel] [PULL 28/55] hw/compat.h: Change indentation of HW_COMPAT_* to 4 spaces, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 30/55] nvdimm: implement NVDIMM device abstract, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 29/55] docs/pci_expander_bridge: fix typo, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 31/55] acpi: support specified oem table id for build_header, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 32/55] nvdimm acpi: build ACPI NFIT table, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 33/55] nvdimm acpi: build ACPI nvdimm devices, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 34/55] nvdimm: add maintain info, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 35/55] acpi: add aml_derefof, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 36/55] acpi: add aml_sizeof, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 37/55] acpi: add aml_lgreater_equal(), Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 38/55] acpi: add aml_mutex(), aml_acquire(), aml_release(),
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 39/55] acpi: add aml_create_qword_field(), Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 40/55] acpi: aml: add helper for Opcode Arg2 Arg2 [Dst] AML pattern, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 41/55] acpi: extend aml_add() to accept target argument, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 42/55] acpi: add aml_decrement() and aml_subtract(), Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 43/55] acpi: add aml_call0() helper, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 44/55] acpi: add aml_to_integer(), Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 46/55] acpi: add aml_alias(), Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 45/55] acpi: extend aml_shiftright() to accept target argument, Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 47/55] acpi: add aml_sleep(), Michael S. Tsirkin, 2015/12/22
- [Qemu-devel] [PULL 48/55] acpi: add aml_lor(), Michael S. Tsirkin, 2015/12/22