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[PATCH 2/3] acpi/gpex: Fix cca attribute check for pxb device
From: |
Wang Xingang |
Subject: |
[PATCH 2/3] acpi/gpex: Fix cca attribute check for pxb device |
Date: |
Fri, 5 Feb 2021 01:56:44 +0000 |
From: Xingang Wang <wangxingang5@huawei.com>
When check DMA support for device attached to pxb,
the cache coherency attribute need to be set.
This add _CCA attribute for pxb DSDT.
Fixes: 6f9765fbad ("acpi/gpex: Build tables for pxb")
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
Signed-off-by: Xingang Wang <wangxingang5@huawei.com>
---
hw/pci-host/gpex-acpi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/pci-host/gpex-acpi.c b/hw/pci-host/gpex-acpi.c
index 446912d771..0f01f13a6e 100644
--- a/hw/pci-host/gpex-acpi.c
+++ b/hw/pci-host/gpex-acpi.c
@@ -175,6 +175,7 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg)
aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
aml_append(dev, aml_name_decl("_STR", aml_unicode("pxb Device")));
+ aml_append(dev, aml_name_decl("_CCA", aml_int(1)));
if (numa_node != NUMA_NODE_UNASSIGNED) {
aml_append(dev, aml_name_decl("_PXM", aml_int(numa_node)));
}
--
2.19.1