[PATCH v3 28/29] acpi: Move the xsdt pointer to acpi_ctx

[Simon Glass]

Put this in the context along with the other important pointers.

Signed-off-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner at br-automation.com>
---

Changes in v3: None
Changes in v2: None

 include/dm/acpi.h     |  2 ++
 lib/acpi/acpi_table.c | 10 ++++------
 test/dm/acpi.c        |  5 +++++
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/include/dm/acpi.h b/include/dm/acpi.h
index ee6f7a63e79..288310b5128 100644
--- a/include/dm/acpi.h
+++ b/include/dm/acpi.h
@@ -33,11 +33,13 @@
  * @rsdp: Pointer to the Root System Description Pointer, typically used when
  *	adding a new table. The RSDP holds pointers to the RSDT and XSDT.
  * @rsdt: Pointer to the Root System Description Table
+ * @xsdt: Pointer to the Extended System Description Table
  */
 struct acpi_ctx {
 	void *current;
 	struct acpi_rsdp *rsdp;
 	struct acpi_rsdt *rsdt;
+	struct acpi_xsdt *xsdt;
 };
 
 /**
diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c
index 70d29c53881..28003dc8f46 100644
--- a/lib/acpi/acpi_table.c
+++ b/lib/acpi/acpi_table.c
@@ -163,7 +163,7 @@ int acpi_add_table(struct acpi_ctx *ctx, void *table)
 	 * And now the same thing for the XSDT. We use the same index as for
 	 * now we want the XSDT and RSDT to always be in sync in U-Boot
 	 */
-	xsdt = (struct acpi_xsdt *)((u32)rsdp->xsdt_address);
+	xsdt = ctx->xsdt;
 
 	/* Add table to the XSDT */
 	xsdt->entry[i] = map_to_sysmem(table);
@@ -234,8 +234,6 @@ static void acpi_write_xsdt(struct acpi_xsdt *xsdt)
 
 void acpi_setup_base_tables(struct acpi_ctx *ctx, void *start)
 {
-	struct acpi_xsdt *xsdt;
-
 	ctx->current = start;
 
 	/* Align ACPI tables to 16 byte */
@@ -246,13 +244,13 @@ void acpi_setup_base_tables(struct acpi_ctx *ctx, void *start)
 	acpi_inc_align(ctx, sizeof(struct acpi_rsdp));
 	ctx->rsdt = ctx->current;
 	acpi_inc_align(ctx, sizeof(struct acpi_rsdt));
-	xsdt = ctx->current;
+	ctx->xsdt = ctx->current;
 	acpi_inc_align(ctx, sizeof(struct acpi_xsdt));
 
 	/* clear all table memory */
 	memset((void *)start, '\0', ctx->current - start);
 
-	acpi_write_rsdp(ctx->rsdp, ctx->rsdt, xsdt);
+	acpi_write_rsdp(ctx->rsdp, ctx->rsdt, ctx->xsdt);
 	acpi_write_rsdt(ctx->rsdt);
-	acpi_write_xsdt(xsdt);
+	acpi_write_xsdt(ctx->xsdt);
 }
diff --git a/test/dm/acpi.c b/test/dm/acpi.c
index 5d5e46e2944..8e160d2cf4e 100644
--- a/test/dm/acpi.c
+++ b/test/dm/acpi.c
@@ -160,6 +160,10 @@ static int dm_test_acpi_write_tables(struct unit_test_state *uts)
 	ut_asserteq(map_to_sysmem(dmar + 1), ctx.rsdt->entry[1]);
 	ut_asserteq(0, ctx.rsdt->entry[2]);
 
+	ut_asserteq(map_to_sysmem(dmar), ctx.xsdt->entry[0]);
+	ut_asserteq(map_to_sysmem(dmar + 1), ctx.xsdt->entry[1]);
+	ut_asserteq(0, ctx.xsdt->entry[2]);
+
 	return 0;
 }
 DM_TEST(dm_test_acpi_write_tables, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
@@ -223,6 +227,7 @@ static int dm_test_acpi_setup_base_tables(struct unit_test_state *uts)
 	ut_assertok(table_compute_checksum(rsdt, sizeof(*rsdt)));
 
 	xsdt = PTR_ALIGN((void *)rsdt + sizeof(*rsdt), 16);
+	ut_asserteq_ptr(xsdt, ctx.xsdt);
 	ut_assertok(memcmp("XSDT", xsdt->header.signature, ACPI_NAME_LEN));
 	ut_asserteq(sizeof(*xsdt), xsdt->header.length);
 	ut_assertok(table_compute_checksum(xsdt, sizeof(*xsdt)));
-- 
2.26.0.rc2.310.g2932bb562d-goog