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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Tyrel Datwyler <tyreld@linux.ibm.com>,
        Michael Ellerman <mpe@ellerman.id.au>
Subject: [PATCH 4.19 007/639] powerpc/pseries: Enable support for ibm,drc-info property
Date:   Fri, 24 Jan 2020 10:22:57 +0100
Message-Id: <20200124093047.995617900@linuxfoundation.org>
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From: Tyrel Datwyler <tyreld@linux.ibm.com>

commit 0a87ccd3699983645f54cafd2258514a716b20b8 upstream.

Advertise client support for the PAPR architected ibm,drc-info device
tree property during CAS handshake.

Fixes: c7a3275e0f9e ("powerpc/pseries: Revert support for ibm,drc-info devtree property")
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1573449697-5448-11-git-send-email-tyreld@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/powerpc/kernel/prom_init.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -904,7 +904,7 @@ struct ibm_arch_vec __cacheline_aligned
 		.reserved2 = 0,
 		.reserved3 = 0,
 		.subprocessors = 1,
-		.byte22 = OV5_FEAT(OV5_DRMEM_V2),
+		.byte22 = OV5_FEAT(OV5_DRMEM_V2) | OV5_FEAT(OV5_DRC_INFO),
 		.intarch = 0,
 		.mmu = 0,
 		.hash_ext = 0,