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x86: Move FACS table to a writer function

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Move this table over to use a writer function, moving the code from the
x86 implementation.

Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2021-12-01 09:02:51 -07:00
parent 94ba15a3f1
commit a53d38f80a
4 changed files with 38 additions and 24 deletions
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26
arch/x86/lib/acpi_table.c
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@@ -38,21 +38,6 @@ extern const unsigned char AmlCode[];
/* ACPI RSDP address to be used in boot parameters */
static ulong acpi_rsdp_addr;
static void acpi_create_facs(struct acpi_facs *facs)
{
memset((void *)facs, 0, sizeof(struct acpi_facs));
memcpy(facs->signature, "FACS", 4);
facs->length = sizeof(struct acpi_facs);
facs->hardware_signature = 0;
facs->firmware_waking_vector = 0;
facs->global_lock = 0;
facs->flags = 0;
facs->x_firmware_waking_vector_l = 0;
facs->x_firmware_waking_vector_h = 0;
facs->version = 1;
}
static int acpi_create_madt_lapic(struct acpi_madt_lapic *lapic,
u8 cpu, u8 apic)
{
@@ -507,7 +492,6 @@ static int write_acpi_tables_x86(struct acpi_ctx *ctx,
const struct acpi_writer *entry)
{
const int thl = sizeof(struct acpi_table_header);
struct acpi_facs *facs;
struct acpi_table_header *dsdt;
struct acpi_fadt *fadt;
struct acpi_table_header *ssdt;
@@ -521,12 +505,6 @@ static int write_acpi_tables_x86(struct acpi_ctx *ctx,
int ret;
int i;
debug("ACPI: * FACS\n");
facs = ctx->current;
acpi_inc_align(ctx, sizeof(struct acpi_facs));
acpi_create_facs(facs);
debug("ACPI: * DSDT\n");
dsdt = ctx->current;
@@ -599,7 +577,7 @@ static int write_acpi_tables_x86(struct acpi_ctx *ctx,
debug("ACPI: * FADT\n");
fadt = ctx->current;
acpi_inc_align(ctx, sizeof(struct acpi_fadt));
acpi_create_fadt(fadt, facs, dsdt);
acpi_create_fadt(fadt, ctx->facs, dsdt);
acpi_add_table(ctx, fadt);
debug("ACPI: * SSDT\n");
@@ -666,7 +644,7 @@ static int write_acpi_tables_x86(struct acpi_ctx *ctx,
return 0;
}
ACPI_WRITER(x86, NULL, write_acpi_tables_x86, 0);
ACPI_WRITER(2x86, NULL, write_acpi_tables_x86, 0);
ulong acpi_get_rsdp_addr(void)
{