linux-kernel - [PATCH 08/14] staging: fsl-mc: set cacheable flag for added devices if applicable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Mon, 11 Apr 2016 11:55:48 -0500
From:	Stuart Yoder <stuart.yoder@....com>
To:	<gregkh@...uxfoundation.org>, <german.rivera@....com>
CC:	<devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
	<agraf@...e.de>, <arnd@...db.de>, <leoyang.li@....com>,
	Itai Katz <itai.katz@....com>,
	Stuart Yoder <stuart.yoder@....com>
Subject: [PATCH 08/14] staging: fsl-mc: set cacheable flag for added devices if applicable

From: Itai Katz <itai.katz@....com>

Some DPAA2 devices have mmio regions that should be mapped as
cacheable by drivers.  Set IORESOURCE_CACHEABLE in the region's
flags if applicable.

Signed-off-by: Itai Katz <itai.katz@....com>
[Stuart: update subject and commit message]
Signed-off-by: Stuart Yoder <stuart.yoder@....com>
---
 drivers/staging/fsl-mc/bus/mc-bus.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c
index 8bf76d7..2075597 100644
--- a/drivers/staging/fsl-mc/bus/mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/mc-bus.c
@@ -354,6 +354,8 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
 		regions[i].end = regions[i].start + region_desc.size - 1;
 		regions[i].name = "fsl-mc object MMIO region";
 		regions[i].flags = IORESOURCE_IO;
+		if (region_desc.flags & DPRC_REGION_CACHEABLE)
+			regions[i].flags |= IORESOURCE_CACHEABLE;
 	}
 
 	mc_dev->regions = regions;
-- 
1.7.9.5