linux-kernel - [PATCH v6 2/4] ARM: mach-shmobile: sh7372: Add IPMMU device

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

Date:	Mon, 21 Jan 2013 19:54:27 +0900
From:	Hideki EIRAKU <hdk@...l.co.jp>
To:	Paul Mundt <lethal@...ux-sh.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Simon Horman <horms@...ge.net.au>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:	linux-sh@...r.kernel.org, iommu@...ts.linux-foundation.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Katsuya MATSUBARA <matsu@...l.co.jp>,
	Damian Hobson-Garcia <dhobsong@...l.co.jp>,
	Hideki EIRAKU <hdk@...l.co.jp>
Subject: [PATCH v6 2/4] ARM: mach-shmobile: sh7372: Add IPMMU device

This patch adds an IPMMU device and notifies the IPMMU driver which
devices are connected via the IPMMU module.  All devices connected to the main
memory bus via the IPMMU module MUST be registered when SHMOBILE_IPMMU and
SHMOBILE_IOMMU are enabled because physical address cannot be used
while the IPMMU module's MMU function is enabled.

Signed-off-by: Hideki EIRAKU <hdk@...l.co.jp>
---
 arch/arm/mach-shmobile/setup-sh7372.c | 39 +++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c
index c917882..04ad98e 100644
--- a/arch/arm/mach-shmobile/setup-sh7372.c
+++ b/arch/arm/mach-shmobile/setup-sh7372.c
@@ -33,6 +33,7 @@
 #include <linux/sh_timer.h>
 #include <linux/pm_domain.h>
 #include <linux/dma-mapping.h>
+#include <linux/platform_data/sh_ipmmu.h>
 #include <mach/dma-register.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
@@ -982,6 +983,43 @@ static struct platform_device spu1_device = {
 	.num_resources	= ARRAY_SIZE(spu1_resources),
 };
 
+/* IPMMUI (an IPMMU module for ICB/LMB) */
+static struct resource ipmmu_resources[] = {
+	[0] = {
+		.name	= "IPMMUI",
+		.start	= 0xfe951000,
+		.end	= 0xfe9510ff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static const char * const ipmmu_dev_names[] = {
+	"sh_mobile_lcdc_fb.0",
+	"sh_mobile_lcdc_fb.1",
+	"sh_mobile_ceu.0",
+	"uio_pdrv_genirq.0",
+	"uio_pdrv_genirq.1",
+	"uio_pdrv_genirq.2",
+	"uio_pdrv_genirq.3",
+	"uio_pdrv_genirq.4",
+	"uio_pdrv_genirq.5",
+};
+
+static struct shmobile_ipmmu_platform_data ipmmu_platform_data = {
+	.dev_names = ipmmu_dev_names,
+	.num_dev_names = ARRAY_SIZE(ipmmu_dev_names),
+};
+
+static struct platform_device ipmmu_device = {
+	.name           = "ipmmu",
+	.id             = -1,
+	.dev = {
+		.platform_data = &ipmmu_platform_data,
+	},
+	.resource       = ipmmu_resources,
+	.num_resources  = ARRAY_SIZE(ipmmu_resources),
+};
+
 static struct platform_device *sh7372_early_devices[] __initdata = {
 	&scif0_device,
 	&scif1_device,
@@ -993,6 +1031,7 @@ static struct platform_device *sh7372_early_devices[] __initdata = {
 	&cmt2_device,
 	&tmu00_device,
 	&tmu01_device,
+	&ipmmu_device,
 };
 
 static struct platform_device *sh7372_late_devices[] __initdata = {
-- 
1.8.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/