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hw/acpi/aml-build: Add aml_memory32_fixed() term 

Add aml_memory32_fixed() for describing device mmio region in resource
template. These can be used to generating DSDT table for ACPI on ARM.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1432522520-8068-6-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Shannon Zhao 2015-05-29 11:28:55 +01:00 committed by Peter Maydell
parent f5d8c8cd79
commit dc17ab1de5
2 changed files with 30 additions and 0 deletions
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28
hw/acpi/aml-build.c
View File

@ -26,6 +26,7 @@
#include <string.h>
#include "hw/acpi/aml-build.h"
#include "qemu/bswap.h"
#include "qemu/bitops.h"
#include "hw/acpi/bios-linker-loader.h"
static GArray *build_alloc_array(void)
@ -505,6 +506,33 @@ Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4)
return var;
}
/*
* ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor
* (Type 1, Large Item Name 0x6)
*/
Aml *aml_memory32_fixed(uint32_t addr, uint32_t size,
AmlReadAndWrite read_and_write)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x86); /* Memory32Fixed Resource Descriptor */
build_append_byte(var->buf, 9); /* Length, bits[7:0] value = 9 */
build_append_byte(var->buf, 0); /* Length, bits[15:8] value = 0 */
build_append_byte(var->buf, read_and_write); /* Write status, 1 rw 0 ro */
/* Range base address */
build_append_byte(var->buf, extract32(addr, 0, 8)); /* bits[7:0] */
build_append_byte(var->buf, extract32(addr, 8, 8)); /* bits[15:8] */
build_append_byte(var->buf, extract32(addr, 16, 8)); /* bits[23:16] */
build_append_byte(var->buf, extract32(addr, 24, 8)); /* bits[31:24] */
/* Range length */
build_append_byte(var->buf, extract32(size, 0, 8)); /* bits[7:0] */
build_append_byte(var->buf, extract32(size, 8, 8)); /* bits[15:8] */
build_append_byte(var->buf, extract32(size, 16, 8)); /* bits[23:16] */
build_append_byte(var->buf, extract32(size, 24, 8)); /* bits[31:24] */
return var;
}
/* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */
Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,
uint8_t aln, uint8_t len)

2
include/hw/acpi/aml-build.h
View File

@ -168,6 +168,8 @@ Aml *aml_call1(const char *method, Aml *arg1);
Aml *aml_call2(const char *method, Aml *arg1, Aml *arg2);
Aml *aml_call3(const char *method, Aml *arg1, Aml *arg2, Aml *arg3);
Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4);
Aml *aml_memory32_fixed(uint32_t addr, uint32_t size,
AmlReadAndWrite read_and_write);
Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,
uint8_t aln, uint8_t len);
Aml *aml_operation_region(const char *name, AmlRegionSpace rs,