Re: [PATCH 0/6] iomem cacheability

From: Amit Tomer <amittomer25@gmail.com>
To: Julien Grall <julien.grall@gmail.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>,
	wei.liu2@citrix.com, Andrew Cooper <andrew.cooper3@citrix.com>,
	Julien Grall <julien.grall@arm.com>,
	Jan Beulich <JBeulich@suse.com>,
	xen-devel@lists.xenproject.org, ian.jackson@citrix.com
Subject: Re: [PATCH 0/6] iomem cacheability
Date: Wed, 6 Mar 2019 17:16:13 +0530	[thread overview]
Message-ID: <CABHD4K8JQdhi8P4ZbYndUFs90w0eH9QqMAa_XDPJM-QA_yr=QA@mail.gmail.com> (raw)
In-Reply-To: <CAF3u54Di61CufwzwJ35sqPrBRVt2ewrmR=siDHPWA8ur29db7Q@mail.gmail.com>

Hi,
> Looking at the stack trace, this is very likely due to the issue I pointed out earlier on. I.e reserved-memory region should be described in the memory nodes.

Do you mean, something like this(reserved-memory node is under memory node) ?

--- a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
@@ -17,23 +17,10 @@
        memory@48000000 {
                device_type = "memory";
                /* first 128MB is reserved for secure area. */
-               reg = <0x0 0x48000000 0x0 0x38000000>;
-       };
-
-       memory@500000000 {
-               device_type = "memory";
-               reg = <0x5 0x00000000 0x0 0x40000000>;
-       };
-
-       memory@600000000 {
-               device_type = "memory";
-               reg = <0x6 0x00000000 0x0 0x40000000>;
-       };
-
-       memory@700000000 {
-               device_type = "memory";
-               reg = <0x7 0x00000000 0x0 0x40000000>;
-       };
+          reg = <0x0 0x48000000 0x0 0x38000000>,
+                <0x5 0x00000000 0x0 0x40000000>,
+                <0x6 0x00000000 0x0 0x40000000>,
+                <0x7 0x00000000 0x0 0x40000000>;

        reserved-memory {
                #address-cells = <2>;
@@ -61,6 +48,7 @@
                        reg = <0x00000000 0x70000000 0x0 0x10000000>;
                };
        };
+       };

Thanks
-Amit

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