Merge commit 'v3.1-rc6' into core/locking

Merge reason: We are queueing up locking annotation patches, move to a fresh base

Signed-off-by: Ingo Molnar <mingo@elte.hu>

50 files changed, 360 insertions, 194 deletions

diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index 85164016ed2..23fdf79f8cf 100644
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -1455,7 +1455,7 @@ Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-vui-sar-idc">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC</constant>&nbsp;</entry>
 		<entry>enum&nbsp;v4l2_mpeg_video_h264_vui_sar_idc</entry>
 	      </row>
@@ -1561,7 +1561,7 @@ Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-level">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LEVEL</constant>&nbsp;</entry>
 		<entry>enum&nbsp;v4l2_mpeg_video_h264_level</entry>
 	      </row>
@@ -1641,7 +1641,7 @@ Possible values are:</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-mpeg4-level">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL</constant>&nbsp;</entry>
 		<entry>enum&nbsp;v4l2_mpeg_video_mpeg4_level</entry>
 	      </row>
@@ -1689,9 +1689,9 @@ Possible values are:</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-profile">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_PROFILE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_h264_profile</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_h264_profile</entry>
 	      </row>
 	      <row><entry spanname="descr">The profile information for H264.
 Applicable to the H264 encoder.
@@ -1774,9 +1774,9 @@ Possible values are:</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-mpeg4-profile">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_mpeg4_profile</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_mpeg4_profile</entry>
 	      </row>
 	      <row><entry spanname="descr">The profile information for MPEG4.
 Applicable to the MPEG4 encoder.
@@ -1820,9 +1820,9 @@ Applicable to the encoder.
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-multi-slice-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_multi_slice_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_multi_slice_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Determines how the encoder should handle division of frame into slices.
 Applicable to the encoder.
@@ -1868,9 +1868,9 @@ Applicable to the encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-loop-filter-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_h264_loop_filter_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_h264_loop_filter_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Loop filter mode for H264 encoder.
 Possible values are:</entry>
@@ -1913,9 +1913,9 @@ Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-entropy-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_h264_symbol_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_h264_entropy_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Entropy coding mode for H264 - CABAC/CAVALC.
 Applicable to the H264 encoder.
@@ -2140,9 +2140,9 @@ previous frames. Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-header-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_HEADER_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_header_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_header_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Determines whether the header is returned as the first buffer or is
 it returned together with the first frame. Applicable to encoders.
@@ -2320,9 +2320,9 @@ Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPE
 Applicable to the H264 encoder.</entry>
 	      </row>
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-mfc51-video-frame-skip-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_mfc51_frame_skip_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_mfc51_video_frame_skip_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">
 Indicates in what conditions the encoder should skip frames. If encoding a frame would cause the encoded stream to be larger then
@@ -2361,9 +2361,9 @@ the stream will meet tight bandwidth contraints. Applicable to encoders.
 </entry>
 	      </row>
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-mfc51-video-force-frame-type">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_mfc51_force_frame_type</entry>
+		<entry>enum&nbsp;v4l2_mpeg_mfc51_video_force_frame_type</entry>
 	      </row>
 	      <row><entry spanname="descr">Force a frame type for the next queued buffer. Applicable to encoders.
 Possible values are:</entry>
diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index 845a191004b..54078ed96b3 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -319,4 +319,6 @@ Code  Seq#(hex)	Include File		Comments
 					<mailto:thomas@winischhofer.net>
 0xF4	00-1F	video/mbxfb.h		mbxfb
 					<mailto:raph@8d.com>
+0xF6	all	LTTng			Linux Trace Toolkit Next Generation
+					<mailto:mathieu.desnoyers@efficios.com>
 0xFD	all	linux/dm-ioctl.h
diff --git a/Makefile b/Makefile
index 03d97aa8c73..522fa4784e6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 1
 SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc6
 NAME = "Divemaster Edition"
 
 # *DOCUMENTATION*
diff --git a/arch/arm/mach-cns3xxx/include/mach/entry-macro.S b/arch/arm/mach-cns3xxx/include/mach/entry-macro.S
index 6bd83ed90af..d87bfc397d3 100644
--- a/arch/arm/mach-cns3xxx/include/mach/entry-macro.S
+++ b/arch/arm/mach-cns3xxx/include/mach/entry-macro.S
@@ -8,7 +8,6 @@
  * published by the Free Software Foundation.
  */
 
-#include <mach/hardware.h>
 #include <asm/hardware/entry-macro-gic.S>
 
 		.macro	disable_fiq
diff --git a/arch/arm/mach-cns3xxx/include/mach/system.h b/arch/arm/mach-cns3xxx/include/mach/system.h
index 58bb03ae3cf..4f16c9b79f7 100644
--- a/arch/arm/mach-cns3xxx/include/mach/system.h
+++ b/arch/arm/mach-cns3xxx/include/mach/system.h
@@ -13,7 +13,6 @@
 
 #include <linux/io.h>
 #include <asm/proc-fns.h>
-#include <mach/hardware.h>
 
 static inline void arch_idle(void)
 {
diff --git a/arch/arm/mach-cns3xxx/include/mach/uncompress.h b/arch/arm/mach-cns3xxx/include/mach/uncompress.h
index de8ead9b91f..a91b6058ab4 100644
--- a/arch/arm/mach-cns3xxx/include/mach/uncompress.h
+++ b/arch/arm/mach-cns3xxx/include/mach/uncompress.h
@@ -8,7 +8,6 @@
  */
 
 #include <asm/mach-types.h>
-#include <mach/hardware.h>
 #include <mach/cns3xxx.h>
 
 #define AMBA_UART_DR(base)	(*(volatile unsigned char *)((base) + 0x00))
diff --git a/arch/arm/mach-cns3xxx/pcie.c b/arch/arm/mach-cns3xxx/pcie.c
index 06fd25d70ae..0f8fca48a5e 100644
--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
@@ -49,7 +49,7 @@ static struct cns3xxx_pcie *sysdata_to_cnspci(void *sysdata)
 	return &cns3xxx_pcie[root->domain];
 }
 
-static struct cns3xxx_pcie *pdev_to_cnspci(struct pci_dev *dev)
+static struct cns3xxx_pcie *pdev_to_cnspci(const struct pci_dev *dev)
 {
 	return sysdata_to_cnspci(dev->sysdata);
 }
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index bd5394537c8..008d51407cd 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -115,6 +115,32 @@ static struct spi_board_info da850evm_spi_info[] = {
 	},
 };
 
+#ifdef CONFIG_MTD
+static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
+{
+	char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
+	size_t retlen;
+
+	if (!strcmp(mtd->name, "MAC-Address")) {
+		mtd->read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
+		if (retlen == ETH_ALEN)
+			pr_info("Read MAC addr from SPI Flash: %pM\n",
+				mac_addr);
+	}
+}
+
+static struct mtd_notifier da850evm_spi_notifier = {
+	.add	= da850_evm_m25p80_notify_add,
+};
+
+static void da850_evm_setup_mac_addr(void)
+{
+	register_mtd_user(&da850evm_spi_notifier);
+}
+#else
+static void da850_evm_setup_mac_addr(void) { }
+#endif
+
 static struct mtd_partition da850_evm_norflash_partition[] = {
 	{
 		.name           = "bootloaders + env",
@@ -1244,6 +1270,8 @@ static __init void da850_evm_init(void)
 	if (ret)
 		pr_warning("da850_evm_init: sata registration failed: %d\n",
 				ret);
+
+	da850_evm_setup_mac_addr();
 }
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
diff --git a/arch/arm/mach-davinci/include/mach/psc.h b/arch/arm/mach-davinci/include/mach/psc.h
index 47fd0bc3d3e..fa59c097223 100644
--- a/arch/arm/mach-davinci/include/mach/psc.h
+++ b/arch/arm/mach-davinci/include/mach/psc.h
@@ -243,7 +243,7 @@
 #define PSC_STATE_DISABLE	2
 #define PSC_STATE_ENABLE	3
 
-#define MDSTAT_STATE_MASK	0x1f
+#define MDSTAT_STATE_MASK	0x3f
 #define MDCTL_FORCE		BIT(31)
 
 #ifndef __ASSEMBLER__
diff --git a/arch/arm/mach-davinci/sleep.S b/arch/arm/mach-davinci/sleep.S
index fb5e72b532b..5f1e045a3ad 100644
--- a/arch/arm/mach-davinci/sleep.S
+++ b/arch/arm/mach-davinci/sleep.S
@@ -217,7 +217,11 @@ ddr2clk_stop_done:
 ENDPROC(davinci_ddr_psc_config)
 
 CACHE_FLUSH:
-	.word	arm926_flush_kern_cache_all
+#ifdef CONFIG_CPU_V6
+	.word	v6_flush_kern_cache_all
+#else
+	.word   arm926_flush_kern_cache_all
+#endif
 
 ENTRY(davinci_cpu_suspend_sz)
 	.word	. - davinci_cpu_suspend
diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
index ffd55b1c439..b9b84468314 100644
--- a/arch/arm/mach-omap2/clock3xxx_data.c
+++ b/arch/arm/mach-omap2/clock3xxx_data.c
@@ -3078,6 +3078,7 @@ static struct clk gpt12_fck = {
 	.name		= "gpt12_fck",
 	.ops		= &clkops_null,
 	.parent		= &secure_32k_fck,
+	.clkdm_name	= "wkup_clkdm",
 	.recalc		= &followparent_recalc,
 };
 
@@ -3085,6 +3086,7 @@ static struct clk wdt1_fck = {
 	.name		= "wdt1_fck",
 	.ops		= &clkops_null,
 	.parent		= &secure_32k_fck,
+	.clkdm_name	= "wkup_clkdm",
 	.recalc		= &followparent_recalc,
 };
 
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 2af0e3f00ce..c0b6fbda340 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -3376,10 +3376,18 @@ int __init omap4xxx_clk_init(void)
 	} else if (cpu_is_omap446x()) {
 		cpu_mask = RATE_IN_4460;
 		cpu_clkflg = CK_446X;
+	} else {
+		return 0;
 	}
 
 	clk_init(&omap2_clk_functions);
-	omap2_clk_disable_clkdm_control();
+
+	/*
+	 * Must stay commented until all OMAP SoC drivers are
+	 * converted to runtime PM, or drivers may start crashing
+	 *
+	 * omap2_clk_disable_clkdm_control();
+	 */
 
 	for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
 									  c++)
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index ab7db083f97..8f0890685d7 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -747,6 +747,7 @@ int clkdm_wakeup(struct clockdomain *clkdm)
 	spin_lock_irqsave(&clkdm->lock, flags);
 	clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;
 	ret = arch_clkdm->clkdm_wakeup(clkdm);
+	ret |= pwrdm_state_switch(clkdm->pwrdm.ptr);
 	spin_unlock_irqrestore(&clkdm->lock, flags);
 	return ret;
 }
@@ -818,6 +819,7 @@ void clkdm_deny_idle(struct clockdomain *clkdm)
 	spin_lock_irqsave(&clkdm->lock, flags);
 	clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;
 	arch_clkdm->clkdm_deny_idle(clkdm);
+	pwrdm_state_switch(clkdm->pwrdm.ptr);
 	spin_unlock_irqrestore(&clkdm->lock, flags);
 }
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index 16743c7d6e8..408193d8e04 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -192,6 +192,7 @@ static struct omap_hwmod_addr_space omap2430_usbhsotg_addrs[] = {
 		.pa_end		= OMAP243X_HS_BASE + SZ_4K - 1,
 		.flags		= ADDR_TYPE_RT
 	},
+	{ }
 };
 
 /*  l4_core ->usbhsotg  interface */
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 3feb35911a3..472bf22d5e8 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -130,7 +130,6 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 		} else {
 			hwsup = clkdm_in_hwsup(pwrdm->pwrdm_clkdms[0]);
 			clkdm_wakeup(pwrdm->pwrdm_clkdms[0]);
-			pwrdm_wait_transition(pwrdm);
 			sleep_switch = FORCEWAKEUP_SWITCH;
 		}
 	}
@@ -156,7 +155,6 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 		return ret;
 	}
 
-	pwrdm_wait_transition(pwrdm);
 	pwrdm_state_switch(pwrdm);
 err:
 	return ret;
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 9af08473bf1..ef71fdd40fc 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -195,28 +195,35 @@ static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused)
 
 /**
  * pwrdm_init - set up the powerdomain layer
- * @pwrdm_list: array of struct powerdomain pointers to register
+ * @pwrdms: array of struct powerdomain pointers to register
  * @custom_funcs: func pointers for arch specific implementations
  *
- * Loop through the array of powerdomains @pwrdm_list, registering all
- * that are available on the current CPU. If pwrdm_list is supplied
- * and not null, all of the referenced powerdomains will be
- * registered.  No return value.  XXX pwrdm_list is not really a
- * "list"; it is an array.  Rename appropriately.
+ * Loop through the array of powerdomains @pwrdms, registering all
+ * that are available on the current CPU.  Also, program all
+ * powerdomain target state as ON; this is to prevent domains from
+ * hitting low power states (if bootloader has target states set to
+ * something other than ON) and potentially even losing context while
+ * PM is not fully initialized.  The PM late init code can then program
+ * the desired target state for all the power domains.  No return
+ * value.
  */
-void pwrdm_init(struct powerdomain **pwrdm_list, struct pwrdm_ops *custom_funcs)
+void pwrdm_init(struct powerdomain **pwrdms, struct pwrdm_ops *custom_funcs)
 {
 	struct powerdomain **p = NULL;
+	struct powerdomain *temp_p;
 
 	if (!custom_funcs)
 		WARN(1, "powerdomain: No custom pwrdm functions registered\n");
 	else
 		arch_pwrdm = custom_funcs;
 
-	if (pwrdm_list) {
-		for (p = pwrdm_list; *p; p++)
+	if (pwrdms) {
+		for (p = pwrdms; *p; p++)
 			_pwrdm_register(*p);
 	}
+
+	list_for_each_entry(temp_p, &pwrdm_list, node)
+		pwrdm_set_next_pwrst(temp_p, PWRDM_POWER_ON);
 }
 
 /**
diff --git a/arch/arm/mach-prima2/clock.c b/arch/arm/mach-prima2/clock.c
index f9a2aaf63f7..615a4e75cea 100644
--- a/arch/arm/mach-prima2/clock.c
+++ b/arch/arm/mach-prima2/clock.c
@@ -481,6 +481,7 @@ static void __init sirfsoc_clk_init(void)
 
 static struct of_device_id clkc_ids[] = {
 	{ .compatible = "sirf,prima2-clkc" },
+	{},
 };
 
 void __init sirfsoc_of_clk_init(void)
diff --git a/arch/arm/mach-prima2/irq.c b/arch/arm/mach-prima2/irq.c
index c3404cbb6ff..7af254d046b 100644
--- a/arch/arm/mach-prima2/irq.c
+++ b/arch/arm/mach-prima2/irq.c
@@ -51,6 +51,7 @@ static __init void sirfsoc_irq_init(void)
 
 static struct of_device_id intc_ids[]  = {
 	{ .compatible = "sirf,prima2-intc" },
+	{},
 };
 
 void __init sirfsoc_of_irq_init(void)
diff --git a/arch/arm/mach-prima2/rstc.c b/arch/arm/mach-prima2/rstc.c
index d074786e83d..492cfa8d261 100644
--- a/arch/arm/mach-prima2/rstc.c
+++ b/arch/arm/mach-prima2/rstc.c
@@ -19,6 +19,7 @@ static DEFINE_MUTEX(rstc_lock);
 
 static struct of_device_id rstc_ids[]  = {
 	{ .compatible = "sirf,prima2-rstc" },
+	{},
 };
 
 static int __init sirfsoc_of_rstc_init(void)
diff --git a/arch/arm/mach-prima2/timer.c b/arch/arm/mach-prima2/timer.c
index 44027f34a88..ed7ec48d11d 100644
--- a/arch/arm/mach-prima2/timer.c
+++ b/arch/arm/mach-prima2/timer.c
@@ -190,6 +190,7 @@ static void __init sirfsoc_timer_init(void)
 
 static struct of_device_id timer_ids[] = {
 	{ .compatible = "sirf,prima2-tick" },
+	{},
 };
 
 static void __init sirfsoc_of_timer_map(void)
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index 9a6a5385491..02609eee056 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -615,6 +615,9 @@ static int _od_resume_noirq(struct device *dev)
 
 	return pm_generic_resume_noirq(dev);
 }
+#else
+#define _od_suspend_noirq NULL
+#define _od_resume_noirq NULL
 #endif
 
 static struct dev_pm_domain omap_device_pm_domain = {
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 052f877b52a..60b47223390 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -31,7 +31,6 @@
 
 #define DMA_ERROR_CODE		(~(dma_addr_t)0x0)
 
-int dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
 
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
@@ -47,6 +46,12 @@ dma_addr_t or1k_map_page(struct device *dev, struct page *page,
 void or1k_unmap_page(struct device *dev, dma_addr_t dma_handle,
 		     size_t size, enum dma_data_direction dir,
 		     struct dma_attrs *attrs);
+int or1k_map_sg(struct device *dev, struct scatterlist *sg,
+		int nents, enum dma_data_direction dir,
+		struct dma_attrs *attrs);
+void or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
+		   int nents, enum dma_data_direction dir,
+		   struct dma_attrs *attrs);
 void or1k_sync_single_for_cpu(struct device *dev,
 			      dma_addr_t dma_handle, size_t size,
 			      enum dma_data_direction dir);
@@ -98,6 +103,51 @@ static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
 	debug_dma_unmap_page(dev, addr, size, dir, true);
 }
 
+static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
+				   int nents, enum dma_data_direction dir)
+{
+	int i, ents;
+	struct scatterlist *s;
+
+	for_each_sg(sg, s, nents, i)
+		kmemcheck_mark_initialized(sg_virt(s), s->length);
+	BUG_ON(!valid_dma_direction(dir));
+	ents = or1k_map_sg(dev, sg, nents, dir, NULL);
+	debug_dma_map_sg(dev, sg, nents, ents, dir);
+
+	return ents;
+}
+
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+				      int nents, enum dma_data_direction dir)
+{
+	BUG_ON(!valid_dma_direction(dir));
+	debug_dma_unmap_sg(dev, sg, nents, dir);
+	or1k_unmap_sg(dev, sg, nents, dir, NULL);
+}
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+				      size_t offset, size_t size,
+				      enum dma_data_direction dir)
+{
+	dma_addr_t addr;
+
+	kmemcheck_mark_initialized(page_address(page) + offset, size);
+	BUG_ON(!valid_dma_direction(dir));
+	addr = or1k_map_page(dev, page, offset, size, dir, NULL);
+	debug_dma_map_page(dev, page, offset, size, dir, addr, false);
+
+	return addr;
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
+				  size_t size, enum dma_data_direction dir)
+{
+	BUG_ON(!valid_dma_direction(dir));