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[Qemu-devel] [PATCH 02/19] acpi: add aml_mutex(), aml_acquire(), aml_rel
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH 02/19] acpi: add aml_mutex(), aml_acquire(), aml_release() |
Date: |
Fri, 23 Oct 2015 16:57:05 +0200 |
From: Xiao Guangrong <address@hidden>
Signed-off-by: Xiao Guangrong <address@hidden>
Signed-off-by: Igor Mammedov <address@hidden>
---
hw/acpi/aml-build.c | 33 +++++++++++++++++++++++++++++++++
include/hw/acpi/aml-build.h | 3 +++
2 files changed, 36 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index ba7c92e..43233e2 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1170,6 +1170,39 @@ Aml *aml_load_table(const char *signature)
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)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 148bf3e..6ac01cb 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -271,6 +271,9 @@ 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);
--
1.8.3.1
- [Qemu-devel] [PATCH 00/19] pc: acpi: move memory hotplug out of DSDT/SSDT into custom table, Igor Mammedov, 2015/10/23
- [Qemu-devel] [PATCH 01/19] acpi: aml: add aml_lgreater_equal() and aml_load_table(), Igor Mammedov, 2015/10/23
- [Qemu-devel] [PATCH 02/19] acpi: add aml_mutex(), aml_acquire(), aml_release(),
Igor Mammedov <=
- [Qemu-devel] [PATCH 05/19] acpi: aml: add aml_call0() helper, Igor Mammedov, 2015/10/23
- [Qemu-devel] [PATCH 07/19] pc: acpi: memhp: move MHPD._STA method into MHPT table, Igor Mammedov, 2015/10/23
- [Qemu-devel] [PATCH 04/19] acpi: aml: add aml_decrement() and aml_subtract(), Igor Mammedov, 2015/10/23
- [Qemu-devel] [PATCH 06/19] pc: acpi: move SSDT part of memhp into a custom table, Igor Mammedov, 2015/10/23
- [Qemu-devel] [PATCH 11/19] pc: acpi: memhp: move MHPD.MRST method into MHPT table, Igor Mammedov, 2015/10/23