From: Armin Wolf <W_Armin@gmx.de>
Date: Thu, 19 Oct 2023 13:51:22 +0000 (+0200)
Subject: platform/x86/amd/hsmp: Fix iomem handling
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=02a258ac3ebf8a530d340ec24a694c13ac9d25c0;p=linux.git

platform/x86/amd/hsmp: Fix iomem handling

Since the metrics table is marked as io memory, use memcpy_fromio()
when copying its contents.

Compile-tested only.

Fixes: 5150542b8ec5 ("platform/x86/amd/hsmp: add support for metrics tbl")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231019135122.21774-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---

diff --git a/drivers/platform/x86/amd/hsmp.c b/drivers/platform/x86/amd/hsmp.c
index b056a5c8654a2..b55d80e291393 100644
--- a/drivers/platform/x86/amd/hsmp.c
+++ b/drivers/platform/x86/amd/hsmp.c
@@ -362,7 +362,7 @@ static ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj,
 	ret = hsmp_send_message(&msg);
 	if (ret)
 		return ret;
-	memcpy(buf, sock->metric_tbl_addr, bin_attr->size);
+	memcpy_fromio(buf, sock->metric_tbl_addr, bin_attr->size);
 
 	return bin_attr->size;
 }