From: Joel Stanley <joel@jms.id.au>
Date: Fri, 13 Jan 2017 03:53:49 +0000 (+1030)
Subject: powerpc/powernv: Report size of OPAL memcons log
X-Git-Tag: v5.15~11761^2~143
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=14a41d6b7572026cf8fc88ee72e81b6b40db2ec0;p=platform%2Fkernel%2Flinux-starfive.git

powerpc/powernv: Report size of OPAL memcons log

The OPAL memory console is reported to be size zero, as we do not
initialise the struct attr with any size information due to the size
being variable. This leads users to think that the console is empty.

Instead report the maximum size.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/platforms/powernv/opal-msglog.c b/arch/powerpc/platforms/powernv/opal-msglog.c
index 39d6ff9..7a9cde0 100644
--- a/arch/powerpc/platforms/powernv/opal-msglog.c
+++ b/arch/powerpc/platforms/powernv/opal-msglog.c
@@ -123,6 +123,10 @@ void __init opal_msglog_init(void)
 		return;
 	}
 
+	/* Report maximum size */
+	opal_msglog_attr.size =  be32_to_cpu(mc->ibuf_size) +
+		be32_to_cpu(mc->obuf_size);
+
 	opal_memcons = mc;
 }