From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43458) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zpdme-00006e-ER for qemu-devel@nongnu.org; Fri, 23 Oct 2015 10:57:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZpdmZ-0005Qw-GW for qemu-devel@nongnu.org; Fri, 23 Oct 2015 10:57:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41069) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZpdmZ-0005Qm-Bs for qemu-devel@nongnu.org; Fri, 23 Oct 2015 10:57:27 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 0677D8F31A for ; Fri, 23 Oct 2015 14:57:27 +0000 (UTC) From: Igor Mammedov Date: Fri, 23 Oct 2015 16:57:05 +0200 Message-Id: <1445612242-79172-3-git-send-email-imammedo@redhat.com> In-Reply-To: <1445612242-79172-1-git-send-email-imammedo@redhat.com> References: <1445612242-79172-1-git-send-email-imammedo@redhat.com> Subject: [Qemu-devel] [PATCH 02/19] acpi: add aml_mutex(), aml_acquire(), aml_release() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com, mst@redhat.com From: Xiao Guangrong Signed-off-by: Xiao Guangrong Signed-off-by: Igor Mammedov --- 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