From c1d2f1bccf4259384e581b937e694ee8a350fe55 Mon Sep 17 00:00:00 2001
From: Prarit Bhargava
Date: Mon, 6 Feb 2012 13:28:55 -0500
Subject: x86/microcode: Remove noisy AMD microcode warning

AMD processors will never support /dev/cpu/microcode updating so
just silently fail instead of printing out a warning for every
cpu.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/1328552935-965-1-git-send-email-prarit@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/microcode_amd.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index ac0417be9131..73465aab28f8 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -360,7 +360,6 @@ out:
 static enum ucode_state
 request_microcode_user(int cpu, const void __user *buf, size_t size)
 {
-	pr_info("AMD microcode update via /dev/cpu/microcode not supported\n");
 	return UCODE_ERROR;
 }
 
-- 
cgit v1.2.3


From 32c3233885eb10ac9cb9410f2f8cd64b8df2b2a1 Mon Sep 17 00:00:00 2001
From: Andreas Herrmann
Date: Wed, 8 Feb 2012 20:52:29 +0100
Subject: x86/amd: Fix L1i and L2 cache sharing information for AMD family 15h
 processors

For L1 instruction cache and L2 cache the shared CPU information
is wrong. On current AMD family 15h CPUs those caches are shared
between both cores of a compute unit.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=42607

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Petkov Borislav <Borislav.Petkov@amd.com>
Cc: Dave Jones <davej@redhat.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/20120208195229.GA17523@alberich.amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/intel_cacheinfo.c | 44 ++++++++++++++++++++++++++++-------
 1 file changed, 36 insertions(+), 8 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 6b45e5e7a901..73d08ed98a64 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -326,8 +326,7 @@ static void __cpuinit amd_calc_l3_indices(struct amd_northbridge *nb)
 	l3->indices = (max(max3(sc0, sc1, sc2), sc3) << 10) - 1;
 }
 
-static void __cpuinit amd_init_l3_cache(struct _cpuid4_info_regs *this_leaf,
-					int index)
+static void __cpuinit amd_init_l3_cache(struct _cpuid4_info_regs *this_leaf, int index)
 {
 	int node;
 
@@ -725,14 +724,16 @@ static DEFINE_PER_CPU(struct _cpuid4_info *, ici_cpuid4_info);
 #define CPUID4_INFO_IDX(x, y)	(&((per_cpu(ici_cpuid4_info, x))[y]))
 
 #ifdef CONFIG_SMP
-static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
+
+static int __cpuinit cache_shared_amd_cpu_map_setup(unsigned int cpu, int index)
 {
-	struct _cpuid4_info	*this_leaf, *sibling_leaf;
-	unsigned long num_threads_sharing;
-	int index_msb, i, sibling;
+	struct _cpuid4_info *this_leaf;
+	int ret, i, sibling;
 	struct cpuinfo_x86 *c = &cpu_data(cpu);
 
-	if ((index == 3) && (c->x86_vendor == X86_VENDOR_AMD)) {
+	ret = 0;
+	if (index == 3) {
+		ret = 1;
 		for_each_cpu(i, cpu_llc_shared_mask(cpu)) {
 			if (!per_cpu(ici_cpuid4_info, i))
 				continue;
@@ -743,8 +744,35 @@ static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
 				set_bit(sibling, this_leaf->shared_cpu_map);
 			}
 		}
-		return;
+	} else if ((c->x86 == 0x15) && ((index == 1) || (index == 2))) {
+		ret = 1;
+		for_each_cpu(i, cpu_sibling_mask(cpu)) {
+			if (!per_cpu(ici_cpuid4_info, i))
+				continue;
+			this_leaf = CPUID4_INFO_IDX(i, index);
+			for_each_cpu(sibling, cpu_sibling_mask(cpu)) {
+				if (!cpu_online(sibling))
+					continue;
+				set_bit(sibling, this_leaf->shared_cpu_map);
+			}
+		}
 	}
+
+	return ret;
+}
+
+static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
+{
+	struct _cpuid4_info *this_leaf, *sibling_leaf;
+	unsigned long num_threads_sharing;
+	int index_msb, i;
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+	if (c->x86_vendor == X86_VENDOR_AMD) {
+		if (cache_shared_amd_cpu_map_setup(cpu, index))
+			return;
+	}
+
 	this_leaf = CPUID4_INFO_IDX(cpu, index);
 	num_threads_sharing = 1 + this_leaf->base.eax.split.num_threads_sharing;
 
-- 
cgit v1.2.3


From 6369fd41fc6075a547394d95608ca7ff0e878698 Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Mon, 9 Jan 2012 13:14:12 +1100
Subject: ARM: OMAP: add RCU locking to omap2_set_init_voltage.

opp_find_freq_ceil and opp_get_voltage are documented as requiring
rcu_lock to be held.  So hold it.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Kevin Hilman <khilman@ti.com>
---
 arch/arm/mach-omap2/pm.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 1881fe915149..5a65dd04aa38 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -174,14 +174,17 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
 	freq = clk->rate;
 	clk_put(clk);
 
+	rcu_read_lock();
 	opp = opp_find_freq_ceil(dev, &freq);
 	if (IS_ERR(opp)) {
+		rcu_read_unlock();
 		pr_err("%s: unable to find boot up OPP for vdd_%s\n",
 			__func__, vdd_name);
 		goto exit;
 	}
 
 	bootup_volt = opp_get_voltage(opp);
+	rcu_read_unlock();
 	if (!bootup_volt) {
 		pr_err("%s: unable to find voltage corresponding "
 			"to the bootup OPP for vdd_%s\n", __func__, vdd_name);
-- 
cgit v1.2.3


From 03e4fd6eb25e6b46536ecdb0d1b7d33d46b15480 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar
Date: Sun, 5 Feb 2012 13:18:44 +0530
Subject: ARM: OMAP4: cpuidle: Fix the C-state reporting to cpuidle governor.

OMAP4 cpuidle driver is reporting the state requested by governor
rather than the actually attempted one.

This is obviously misleading sysfs and powertop cpuidle statistics.
Fix it so that stats are reported correctly.

Reported-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[khilman@ti.com: minor changelog edits]
Signed-off-by: Kevin Hilman <khilman@ti.com>
---
 arch/arm/mach-omap2/cpuidle44xx.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c
index cfdbb86bc84e..72e018b9b260 100644
--- a/arch/arm/mach-omap2/cpuidle44xx.c
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -65,7 +65,6 @@ static int omap4_enter_idle(struct cpuidle_device *dev,
 	struct timespec ts_preidle, ts_postidle, ts_idle;
 	u32 cpu1_state;
 	int idle_time;
-	int new_state_idx;
 	int cpu_id = smp_processor_id();
 
 	/* Used to keep track of the total time in idle */
@@ -84,8 +83,8 @@ static int omap4_enter_idle(struct cpuidle_device *dev,
 	 */
 	cpu1_state = pwrdm_read_pwrst(cpu1_pd);
 	if (cpu1_state != PWRDM_POWER_OFF) {
-		new_state_idx = drv->safe_state_index;
-		cx = cpuidle_get_statedata(&dev->states_usage[new_state_idx]);
+		index = drv->safe_state_index;
+		cx = cpuidle_get_statedata(&dev->states_usage[index]);
 	}
 
 	if (index > 0)
-- 
cgit v1.2.3


From 2ec1fc4e169acc0b8d6733ff028fd52e766773d9 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar
Date: Thu, 2 Feb 2012 19:33:55 +0530
Subject: ARM: OMAP4: Move the barrier memboclk_steal() as part of reserve
 callback

arm_memblock_steal() is not suppose to be used outside ->reserve callback.
OMAP barrier errata code was using it outside reserve callback and hence
it was broken.

Move the allocation as part of ->reserve callback to fix the it.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig                   |  4 ++--
 arch/arm/mach-omap2/common.h                  |  1 +
 arch/arm/mach-omap2/io.c                      |  1 +
 arch/arm/mach-omap2/omap4-common.c            | 25 ++++++++++++++++---------
 arch/arm/plat-omap/common.c                   |  1 +
 arch/arm/plat-omap/include/plat/omap-secure.h |  6 ++++++
 6 files changed, 27 insertions(+), 11 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 41e6612ecbaf..ac6b1d3554d8 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -365,8 +365,8 @@ config OMAP3_SDRC_AC_TIMING
 	  going on could result in system crashes;
 
 config OMAP4_ERRATA_I688
-	bool "OMAP4 errata: Async Bridge Corruption (BROKEN)"
-	depends on ARCH_OMAP4 && BROKEN
+	bool "OMAP4 errata: Async Bridge Corruption"
+	depends on ARCH_OMAP4
 	select ARCH_HAS_BARRIERS
 	help
 	  If a data is stalled inside asynchronous bridge because of back
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index febffde2ff10..7e9338e8d684 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -132,6 +132,7 @@ void omap3_map_io(void);
 void am33xx_map_io(void);
 void omap4_map_io(void);
 void ti81xx_map_io(void);
+void omap_barriers_init(void);
 
 /**
  * omap_test_timeout - busy-loop, testing a condition
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 3f174d51f67f..f64aa79a7869 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -307,6 +307,7 @@ void __init omapam33xx_map_common_io(void)
 void __init omap44xx_map_common_io(void)
 {
 	iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
+	omap_barriers_init();
 }
 #endif
 
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 40a8fbc07e4b..ebc595091312 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -24,6 +24,7 @@
 
 #include <plat/irqs.h>
 #include <plat/sram.h>
+#include <plat/omap-secure.h>
 
 #include <mach/hardware.h>
 #include <mach/omap-wakeupgen.h>
@@ -43,6 +44,9 @@ static void __iomem *sar_ram_base;
 
 void __iomem *dram_sync, *sram_sync;
 
+static phys_addr_t paddr;
+static u32 size;
+
 void omap_bus_sync(void)
 {
 	if (dram_sync && sram_sync) {
@@ -52,18 +56,20 @@ void omap_bus_sync(void)
 	}
 }
 
-static int __init omap_barriers_init(void)
+/* Steal one page physical memory for barrier implementation */
+int __init omap_barrier_reserve_memblock(void)
 {
-	struct map_desc dram_io_desc[1];
-	phys_addr_t paddr;
-	u32 size;
-
-	if (!cpu_is_omap44xx())
-		return -ENODEV;
 
 	size = ALIGN(PAGE_SIZE, SZ_1M);
 	paddr = arm_memblock_steal(size, SZ_1M);
 
+	return 0;
+}
+
+void __init omap_barriers_init(void)
+{
+	struct map_desc dram_io_desc[1];
+
 	dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA;
 	dram_io_desc[0].pfn = __phys_to_pfn(paddr);
 	dram_io_desc[0].length = size;
@@ -75,9 +81,10 @@ static int __init omap_barriers_init(void)
 	pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n",
 		(long long) paddr, dram_io_desc[0].virtual);
 
-	return 0;
 }
-core_initcall(omap_barriers_init);
+#else
+void __init omap_barriers_init(void)
+{}
 #endif
 
 void __init gic_init_irq(void)
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 06383b51e655..4de7d1e79e73 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -69,6 +69,7 @@ void __init omap_reserve(void)
 	omap_vram_reserve_sdram_memblock();
 	omap_dsp_reserve_sdram_memblock();
 	omap_secure_ram_reserve_memblock();
+	omap_barrier_reserve_memblock();
 }
 
 void __init omap_init_consistent_dma_size(void)
diff --git a/arch/arm/plat-omap/include/plat/omap-secure.h b/arch/arm/plat-omap/include/plat/omap-secure.h
index 3047ff923a63..8c7994ce9869 100644
--- a/arch/arm/plat-omap/include/plat/omap-secure.h
+++ b/arch/arm/plat-omap/include/plat/omap-secure.h
@@ -10,4 +10,10 @@ static inline void omap_secure_ram_reserve_memblock(void)
 { }
 #endif
 
+#ifdef CONFIG_OMAP4_ERRATA_I688
+extern int omap_barrier_reserve_memblock(void);
+#else
+static inline void omap_barrier_reserve_memblock(void)
+{ }
+#endif
 #endif /* __OMAP_SECURE_H__ */
-- 
cgit v1.2.3


From abe763f2bccbc592d33a3a9c334acaefea022c0a Mon Sep 17 00:00:00 2001
From: Felipe Balbi
Date: Tue, 14 Feb 2012 10:54:46 +0200
Subject: ARM: OMAP2+: usb-host: fix compile warning

when commit 3528c58 (OMAP: omap_device: when
building return platform_device instead of
omap_device) started returning a platform_device
instead of a omap_device pointer when building
a device, it failed to convert all users introducing
a compile warning when building
arch/arm/mach-omap2/usb-host.c.

This patch fixes that warning.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/usb-host.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c
index 771dc781b746..f51348dafafd 100644
--- a/arch/arm/mach-omap2/usb-host.c
+++ b/arch/arm/mach-omap2/usb-host.c
@@ -486,7 +486,7 @@ static void setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
 void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
 {
 	struct omap_hwmod	*oh[2];
-	struct omap_device	*od;
+	struct platform_device	*pdev;
 	int			bus_id = -1;
 	int			i;
 
@@ -522,11 +522,11 @@ void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
 		return;
 	}
 
-	od = omap_device_build_ss(OMAP_USBHS_DEVICE, bus_id, oh, 2,
+	pdev = omap_device_build_ss(OMAP_USBHS_DEVICE, bus_id, oh, 2,
 				(void *)&usbhs_data, sizeof(usbhs_data),
 				omap_uhhtll_latency,
 				ARRAY_SIZE(omap_uhhtll_latency), false);
-	if (IS_ERR(od)) {
+	if (IS_ERR(pdev)) {
 		pr_err("Could not build hwmod devices %s,%s\n",
 			USBHS_UHH_HWMODNAME, USBHS_TLL_HWMODNAME);
 		return;
-- 
cgit v1.2.3


From bc329ad7b018c8f6725cb025bf4d192925db84e6 Mon Sep 17 00:00:00 2001
From: Haojian Zhuang
Date: Mon, 6 Feb 2012 15:33:22 +0800
Subject: ARM: pxa: fix wrong parsing gpio event on spitz

(~GPLR0 & GPIO_bit(SPITZ_GPIO_KEY_INT)) | (GPLR0 &
GPIO_bit(SPITZ_GPIO_SYNC));

After using gpio_get_value, the statement should be in below.
((!gpio_get_value(SPITZ_GPIO_KEY_INT)
	<< GPIO_bit(SPITZ_GPIO_KEY_INT))
	| gpio_get_value(SPITZ_GPIO_SYNC));

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
---
 arch/arm/mach-pxa/spitz_pm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c
index 34cbdac51525..438f02fe122a 100644
--- a/arch/arm/mach-pxa/spitz_pm.c
+++ b/arch/arm/mach-pxa/spitz_pm.c
@@ -172,10 +172,9 @@ static int spitz_should_wakeup(unsigned int resume_on_alarm)
 static unsigned long spitz_charger_wakeup(void)
 {
 	unsigned long ret;
-	ret = (!gpio_get_value(SPITZ_GPIO_KEY_INT)
+	ret = ((!gpio_get_value(SPITZ_GPIO_KEY_INT)
 		<< GPIO_bit(SPITZ_GPIO_KEY_INT))
-		| (!gpio_get_value(SPITZ_GPIO_SYNC)
-		<< GPIO_bit(SPITZ_GPIO_SYNC));
+		| gpio_get_value(SPITZ_GPIO_SYNC));
 	return ret;
 }
 
-- 
cgit v1.2.3


From 438d7dc2bb531de59e335fea69d4a041f353f6f9 Mon Sep 17 00:00:00 2001
From: Haojian Zhuang
Date: Mon, 6 Feb 2012 15:59:11 +0800
Subject: ARM: pxa: fix mixed declarations and code in sharpsl_pm

arch/arm/mach-pxa/sharpsl_pm.c: In function
'sharpsl_pm_pxa_read_max1111':
arch/arm/mach-pxa/sharpsl_pm.c:180: warning: ISO C90 forbids mixed
declarations and code

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
---
 arch/arm/mach-pxa/sharpsl_pm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c
index 8d5168d253a9..30989baf7f2a 100644
--- a/arch/arm/mach-pxa/sharpsl_pm.c
+++ b/arch/arm/mach-pxa/sharpsl_pm.c
@@ -168,6 +168,7 @@ struct battery_thresh sharpsl_battery_levels_noac[] = {
 #define MAXCTRL_SEL_SH   4
 #define MAXCTRL_STR      (1u << 7)
 
+extern int max1111_read_channel(int);
 /*
  * Read MAX1111 ADC
  */
@@ -177,8 +178,6 @@ int sharpsl_pm_pxa_read_max1111(int channel)
 	if (machine_is_tosa())
 	    return 0;
 
-	extern int max1111_read_channel(int);
-
 	/* max1111 accepts channels from 0-3, however,
 	 * it is encoded from 0-7 here in the code.
 	 */
-- 
cgit v1.2.3


From be9bac9d33c0864ac7684c683df5da3b0c38e3b7 Mon Sep 17 00:00:00 2001
From: Danny Kukawka
Date: Wed, 15 Feb 2012 20:19:25 +0100
Subject: ARM: pxa: fix including linux/gpio.h twice

arch/arm/mach-pxa/pxa27x.c included 'linux/gpio.h' twice, remove
the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
---
 arch/arm/mach-pxa/pxa27x.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index aed6cbcf3866..c1673b3441d4 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -22,7 +22,6 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/i2c/pxa-i2c.h>
-#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 #include <mach/hardware.h>
-- 
cgit v1.2.3


From 2c5e1ec920a67d5dc51755b3de0e4ad9030162ff Mon Sep 17 00:00:00 2001
From: Danny Kukawka
Date: Thu, 16 Feb 2012 15:45:20 +0100
Subject: arch/arm/mach-mmp/: some files include some headers twice

arch/arm/mach-mmp/: some files include some headers twice:
- arch/arm/mach-mmp/aspenite.c and
  arch/arm/mach-mmp/tavorevb.c: 'linux/gpio.h'
- arch/arm/mach-mmp/pxa168.c: 'linux/platform_device.h'

Remove the duplicates.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
---
 arch/arm/mach-mmp/aspenite.c | 1 -
 arch/arm/mach-mmp/pxa168.c   | 1 -
 arch/arm/mach-mmp/tavorevb.c | 1 -
 3 files changed, 3 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index 17cb76060125..3588a5584153 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -17,7 +17,6 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand.h>
 #include <linux/interrupt.h>
-#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
index 7bc17eaa12eb..ada1213982b4 100644
--- a/arch/arm/mach-mmp/pxa168.c
+++ b/arch/arm/mach-mmp/pxa168.c
@@ -24,7 +24,6 @@
 #include <mach/dma.h>
 #include <mach/devices.h>
 #include <mach/mfp.h>
-#include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <mach/pxa168.h>
 
diff --git a/arch/arm/mach-mmp/tavorevb.c b/arch/arm/mach-mmp/tavorevb.c
index 8e3b5af04a57..bc97170125bf 100644
--- a/arch/arm/mach-mmp/tavorevb.c
+++ b/arch/arm/mach-mmp/tavorevb.c
@@ -12,7 +12,6 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/smc91x.h>
-#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
-- 
cgit v1.2.3


From 88879c43eb8485861c17fcc15219c0b1ea17a925 Mon Sep 17 00:00:00 2001
From: Danny Kukawka
Date: Thu, 16 Feb 2012 15:45:42 +0100
Subject: arch/arm/mach-pxa/: included linux/gpio.h twice

arch/arm/mach-pxa/pxa25x.c and arch/arm/mach-pxa/saarb.c
included 'linux/gpio.h' twice, remove the duplicates.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
---
 arch/arm/mach-pxa/pxa25x.c | 1 -
 arch/arm/mach-pxa/saarb.c  | 1 -
 2 files changed, 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 91e4f6c03766..00d6eacab8e4 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -25,7 +25,6 @@
 #include <linux/suspend.h>
 #include <linux/syscore_ops.h>
 #include <linux/irq.h>
-#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 #include <asm/suspend.h>
diff --git a/arch/arm/mach-pxa/saarb.c b/arch/arm/mach-pxa/saarb.c
index febc809ed5a6..5aded5e6148f 100644
--- a/arch/arm/mach-pxa/saarb.c
+++ b/arch/arm/mach-pxa/saarb.c
@@ -15,7 +15,6 @@
 #include <linux/i2c.h>
 #include <linux/i2c/pxa-i2c.h>
 #include <linux/mfd/88pm860x.h>
-#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
-- 
cgit v1.2.3


From d87f614326a2cb4c3ead0a45e5468c7c3ca6b72f Mon Sep 17 00:00:00 2001
From: Axel Lin
Date: Fri, 30 Dec 2011 12:06:11 +0800
Subject: pxa/hx4700: add platform device and I2C info for AK4641 codec

The audio on hx4700 needs this to properly work.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
---
 arch/arm/mach-pxa/hx4700.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index fb9b62dcf4ca..208eef1c0485 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -45,6 +45,7 @@
 #include <mach/hx4700.h>
 #include <mach/irda.h>
 
+#include <sound/ak4641.h>
 #include <video/platform_lcd.h>
 #include <video/w100fb.h>
 
@@ -764,6 +765,28 @@ static struct i2c_board_info __initdata pi2c_board_info[] = {
 	},
 };
 
+/*
+ * Asahi Kasei AK4641 on I2C
+ */
+
+static struct ak4641_platform_data ak4641_info = {
+	.gpio_power = GPIO27_HX4700_CODEC_ON,
+	.gpio_npdn  = GPIO109_HX4700_CODEC_nPDN,
+};
+
+static struct i2c_board_info i2c_board_info[] __initdata = {
+	{
+		I2C_BOARD_INFO("ak4641", 0x12),
+		.platform_data = &ak4641_info,
+	},
+};
+
+static struct platform_device audio = {
+	.name	= "hx4700-audio",
+	.id	= -1,
+};
+
+
 /*
  * PCMCIA
  */
@@ -790,6 +813,7 @@ static struct platform_device *devices[] __initdata = {
 	&gpio_vbus,
 	&power_supply,
 	&strataflash,
+	&audio,
 	&pcmcia,
 };
 
@@ -827,6 +851,7 @@ static void __init hx4700_init(void)
 	pxa_set_ficp_info(&ficp_info);
 	pxa27x_set_i2c_power_info(NULL);
 	pxa_set_i2c_info(NULL);
+	i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
 	i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
 	pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
 	spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
-- 
cgit v1.2.3


From abdf8b5e07884a183938969253770164d60b87cb Mon Sep 17 00:00:00 2001
From: Jonas Bonn
Date: Wed, 15 Feb 2012 15:00:32 +0100
Subject: openrisc: include export.h for EXPORT_SYMBOL

Use of EXPORT_SYMBOL requires inclusion of export.h

Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/kernel/init_task.c | 1 +
 arch/openrisc/kernel/irq.c       | 1 +
 2 files changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/openrisc/kernel/init_task.c b/arch/openrisc/kernel/init_task.c
index 45744a384927..ca534082d5f3 100644
--- a/arch/openrisc/kernel/init_task.c
+++ b/arch/openrisc/kernel/init_task.c
@@ -17,6 +17,7 @@
 
 #include <linux/init_task.h>
 #include <linux/mqueue.h>
+#include <linux/export.h>
 
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
diff --git a/arch/openrisc/kernel/irq.c b/arch/openrisc/kernel/irq.c
index 59b302338331..4bfead220956 100644
--- a/arch/openrisc/kernel/irq.c
+++ b/arch/openrisc/kernel/irq.c
@@ -23,6 +23,7 @@
 #include <linux/irq.h>
 #include <linux/seq_file.h>
 #include <linux/kernel_stat.h>
+#include <linux/export.h>
 
 #include <linux/irqflags.h>
 
-- 
cgit v1.2.3


From 3f6ffc8c2087791920721f086f9a92fde7bed9e2 Mon Sep 17 00:00:00 2001
From: Jonas Bonn
Date: Wed, 15 Feb 2012 15:02:20 +0100
Subject: openrisc: Fix up audit_syscall_[entry|exit]() usage

Commits d7e7528bcd456f5c36ad4a202ccfb43c5aa98bc4 and
b05d8447e7821695bc2fa3359431f7a664232743 simplified the usage of the
audit_syscall_[entry|exit] functions.  Unfortunately, the OpenRISC
architecture didn't get fixed up along with the other architectures when
those patches were pushed.  This makes the relevant changes to this
architecture.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/include/asm/ptrace.h |  8 +++++++-
 arch/openrisc/kernel/ptrace.c      | 12 ++++--------
 2 files changed, 11 insertions(+), 9 deletions(-)

(limited to 'arch')

diff --git a/arch/openrisc/include/asm/ptrace.h b/arch/openrisc/include/asm/ptrace.h
index 054537c5f9c9..e612ce4512c7 100644
--- a/arch/openrisc/include/asm/ptrace.h
+++ b/arch/openrisc/include/asm/ptrace.h
@@ -77,7 +77,6 @@ struct pt_regs {
 	long  syscallno;	/* Syscall number (used by strace) */
 	long dummy;		/* Cheap alignment fix */
 };
-#endif /* __ASSEMBLY__ */
 
 /* TODO: Rename this to REDZONE because that's what it is */
 #define STACK_FRAME_OVERHEAD  128  /* size of minimum stack frame */
@@ -87,6 +86,13 @@ struct pt_regs {
 #define user_stack_pointer(regs)	((unsigned long)(regs)->sp)
 #define profile_pc(regs)		instruction_pointer(regs)
 
+static inline long regs_return_value(struct pt_regs *regs)
+{
+	return regs->gpr[11];
+}
+
+#endif /* __ASSEMBLY__ */
+
 /*
  * Offsets used by 'ptrace' system call interface.
  */
diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
index 656b94beab89..7259047d5f9d 100644
--- a/arch/openrisc/kernel/ptrace.c
+++ b/arch/openrisc/kernel/ptrace.c
@@ -188,11 +188,9 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 		 */
 		ret = -1L;
 
-	/* Are these regs right??? */
-	if (unlikely(current->audit_context))
-		audit_syscall_entry(audit_arch(), regs->syscallno,
-				    regs->gpr[3], regs->gpr[4],
-				    regs->gpr[5], regs->gpr[6]);
+	audit_syscall_entry(audit_arch(), regs->syscallno,
+			    regs->gpr[3], regs->gpr[4],
+			    regs->gpr[5], regs->gpr[6]);
 
 	return ret ? : regs->syscallno;
 }
@@ -201,9 +199,7 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
 {
 	int step;
 
-	if (unlikely(current->audit_context))
-		audit_syscall_exit(AUDITSC_RESULT(regs->gpr[11]),
-				   regs->gpr[11]);
+	audit_syscall_exit(regs);
 
 	step = test_thread_flag(TIF_SINGLESTEP);
 	if (step || test_thread_flag(TIF_SYSCALL_TRACE))
-- 
cgit v1.2.3


From 45d5a1683c04be28abdf5c04c27b1417e0374486 Mon Sep 17 00:00:00 2001
From: Steven Rostedt
Date: Sun, 19 Feb 2012 16:43:37 -0500
Subject: x86/nmi: Test saved %cs in NMI to determine nested NMI case

Currently, the NMI handler tests if it is nested by checking the
special variable saved on the stack (set during NMI handling)
and whether the saved stack is the NMI stack as well (to prevent
the race when the variable is set to zero).

But userspace may set their %rsp to any value as long as they do
not derefence it, and it may make it point to the NMI stack,
which will prevent NMIs from triggering while the userspace app
is running. (I tested this, and it is indeed the case)

Add another check to determine nested NMIs by looking at the
saved %cs (code segment register) and making sure that it is the
kernel code segment.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/1329687817.1561.27.camel@acer.local.home
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/entry_64.S | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 3fe8239fd8fb..debd851de6ff 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1531,6 +1531,13 @@ ENTRY(nmi)
 	/* Use %rdx as out temp variable throughout */
 	pushq_cfi %rdx
 
+	/*
+	 * If %cs was not the kernel segment, then the NMI triggered in user
+	 * space, which means it is definitely not nested.
+	 */
+	cmp $__KERNEL_CS, 16(%rsp)
+	jne first_nmi
+
 	/*
 	 * Check the special variable on the stack to see if NMIs are
 	 * executing.
-- 
cgit v1.2.3


From 416d7214741daba3acd6d328289858390bef37bc Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk
Date: Fri, 10 Feb 2012 09:24:08 -0500
Subject: xen/setup: Remove redundant filtering of PTE masks.

commit 7347b4082e55ac4a673f06a0a0ce25c37273c9ec "xen: Allow
unprivileged Xen domains to create iomap pages" added a redundant
line in the early bootup code to filter out the PTE. That
filtering is already done a bit earlier so this extra processing
is not required.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/x86/xen/enlighten.c | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 12eb07bfb267..7c44e1bf981e 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1204,10 +1204,6 @@ asmlinkage void __init xen_start_kernel(void)
 
 	pgd = (pgd_t *)xen_start_info->pt_base;
 
-	if (!xen_initial_domain())
-		__supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
-
-	__supported_pte_mask |= _PAGE_IOMAP;
 	/* Don't do the full vcpu_info placement stuff until we have a
 	   possible map and a non-dummy shared_info. */
 	per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
-- 
cgit v1.2.3


From 8eaffa67b43e99ae581622c5133e20b0f48bcef1 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk
Date: Fri, 10 Feb 2012 09:16:27 -0500
Subject: xen/pat: Disable PAT support for now.

[Pls also look at https://lkml.org/lkml/2012/2/10/228]

Using of PAT to change pages from WB to WC works quite nicely.
Changing it back to WB - not so much. The crux of the matter is
that the code that does this (__page_change_att_set_clr) has only
limited information so when it tries to the change it gets
the "raw" unfiltered information instead of the properly filtered one -
and the "raw" one tell it that PSE bit is on (while infact it
is not).  As a result when the PTE is set to be WB from WC, we get
tons of:

:WARNING: at arch/x86/xen/mmu.c:475 xen_make_pte+0x67/0xa0()
:Hardware name: HP xw4400 Workstation
.. snip..
:Pid: 27, comm: kswapd0 Tainted: G        W    3.2.2-1.fc16.x86_64 #1
:Call Trace:
: [<ffffffff8106dd1f>] warn_slowpath_common+0x7f/0xc0
: [<ffffffff8106dd7a>] warn_slowpath_null+0x1a/0x20
: [<ffffffff81005a17>] xen_make_pte+0x67/0xa0
: [<ffffffff810051bd>] __raw_callee_save_xen_make_pte+0x11/0x1e
: [<ffffffff81040e15>] ? __change_page_attr_set_clr+0x9d5/0xc00
: [<ffffffff8114c2e8>] ? __purge_vmap_area_lazy+0x158/0x1d0
: [<ffffffff8114cca5>] ? vm_unmap_aliases+0x175/0x190
: [<ffffffff81041168>] change_page_attr_set_clr+0x128/0x4c0
: [<ffffffff81041542>] set_pages_array_wb+0x42/0xa0
: [<ffffffff8100a9b2>] ? check_events+0x12/0x20
: [<ffffffffa0074d4c>] ttm_pages_put+0x1c/0x70 [ttm]
: [<ffffffffa0074e98>] ttm_page_pool_free+0xf8/0x180 [ttm]
: [<ffffffffa0074f78>] ttm_pool_mm_shrink+0x58/0x90 [ttm]
: [<ffffffff8112ba04>] shrink_slab+0x154/0x310
: [<ffffffff8112f17a>] balance_pgdat+0x4fa/0x6c0
: [<ffffffff8112f4b8>] kswapd+0x178/0x3d0
: [<ffffffff815df134>] ? __schedule+0x3d4/0x8c0
: [<ffffffff81090410>] ? remove_wait_queue+0x50/0x50
: [<ffffffff8112f340>] ? balance_pgdat+0x6c0/0x6c0
: [<ffffffff8108fb6c>] kthread+0x8c/0xa0

for every page. The proper fix for this is has been posted
and is https://lkml.org/lkml/2012/2/10/228
"x86/cpa: Use pte_attrs instead of pte_flags on CPA/set_p.._wb/wc operations."
along with a detailed description of the problem and solution.

But since that posting has gone nowhere I am proposing
this band-aid solution so that at least users don't get
the page corruption (the pages that are WC don't get changed to WB
and end up being recycled for filesystem or other things causing
mysterious crashes).

The negative impact of this patch is that users of WC flag
(which are InfiniBand, radeon, nouveau drivers) won't be able
to set that flag - so they are going to see performance degradation.
But stability is more important here.

Fixes RH BZ# 742032, 787403, and 745574
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/x86/xen/enlighten.c | 2 ++
 arch/x86/xen/mmu.c       | 8 ++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 7c44e1bf981e..4172af8ceeb3 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1141,7 +1141,9 @@ asmlinkage void __init xen_start_kernel(void)
 
 	/* Prevent unwanted bits from being set in PTEs. */
 	__supported_pte_mask &= ~_PAGE_GLOBAL;
+#if 0
 	if (!xen_initial_domain())
+#endif
 		__supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
 
 	__supported_pte_mask |= _PAGE_IOMAP;
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 58a0e46c404d..95c1cf60c669 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -415,13 +415,13 @@ static pteval_t iomap_pte(pteval_t val)
 static pteval_t xen_pte_val(pte_t pte)
 {
 	pteval_t pteval = pte.pte;
-
+#if 0
 	/* If this is a WC pte, convert back from Xen WC to Linux WC */
 	if ((pteval & (_PAGE_PAT | _PAGE_PCD | _PAGE_PWT)) == _PAGE_PAT) {
 		WARN_ON(!pat_enabled);
 		pteval = (pteval & ~_PAGE_PAT) | _PAGE_PWT;
 	}
-
+#endif
 	if (xen_initial_domain() && (pteval & _PAGE_IOMAP))
 		return pteval;
 
@@ -463,7 +463,7 @@ void xen_set_pat(u64 pat)
 static pte_t xen_make_pte(pteval_t pte)
 {
 	phys_addr_t addr = (pte & PTE_PFN_MASK);
-
+#if 0
 	/* If Linux is trying to set a WC pte, then map to the Xen WC.
 	 * If _PAGE_PAT is set, then it probably means it is really
 	 * _PAGE_PSE, so avoid fiddling with the PAT mapping and hope
@@ -476,7 +476,7 @@ static pte_t xen_make_pte(pteval_t pte)
 		if ((pte & (_PAGE_PCD | _PAGE_PWT)) == _PAGE_PWT)
 			pte = (pte & ~(_PAGE_PCD | _PAGE_PWT)) | _PAGE_PAT;
 	}
-
+#endif
 	/*
 	 * Unprivileged domains are allowed to do IOMAPpings for
 	 * PCI passthrough, but not map ISA space.  The ISA
-- 
cgit v1.2.3


From 97899e555b76ce64222303bc8d46fda9d49eb14b Mon Sep 17 00:00:00 2001
From: Tony Lindgren
Date: Mon, 20 Feb 2012 09:43:28 -0800
Subject: ARM: OMAP: Fix kernel panic with HSMMC when twl4030_gpio is a module

On some omaps twl4030_gpio has a callback to try to initialize
the MMC controller. If twl4030_gpio is compiled as a module,
bad things can happen because the callback function starts
calling functions that are supposed to be marked __init:

Kernel panic - not syncing: Attempted to kill the idle task!
twl4030_gpio twl4030_gpio: can't dispatch IRQs from modules
gpiochip_add: registered GPIOs 192 to 209 on device: twl4030
Unable to handle kernel paging request at virtual address b82a4c74
...

Additionally if this does not fail, warnings are produced
about trying to register the MMC multiple times.

Fix this by removing __init from omap_mux_get_by_name,
and add checks if omap2_hsmmc_init() is getting called more
than once.

Note that this will get fixed properly later on by splitting
omap2_hsmmc_init into two functions.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/hsmmc.c | 6 ++++++
 arch/arm/mach-omap2/mux.c   | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index b40c28895298..19dd1657245c 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -428,6 +428,7 @@ static int omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	return 0;
 }
 
+static int omap_hsmmc_done;
 #define MAX_OMAP_MMC_HWMOD_NAME_LEN		16
 
 void omap_init_hsmmc(struct omap2_hsmmc_info *hsmmcinfo, int ctrl_nr)
@@ -491,6 +492,11 @@ void omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
 {
 	u32 reg;
 
+	if (omap_hsmmc_done)
+		return;
+
+	omap_hsmmc_done = 1;
+
 	if (!cpu_is_omap44xx()) {
 		if (cpu_is_omap2430()) {
 			control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE;
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index fb8bc9fa43b1..611a0e3d54ca 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -218,7 +218,7 @@ static int _omap_mux_get_by_name(struct omap_mux_partition *partition,
 	return -ENODEV;
 }
 
-static int __init
+static int
 omap_mux_get_by_name(const char *muxname,
 			struct omap_mux_partition **found_partition,
 			struct omap_mux **found_mux)
-- 
cgit v1.2.3


From d517110243130965e2803cc2373d434bdaf6dafb Mon Sep 17 00:00:00 2001
From: Tony Lindgren
Date: Mon, 20 Feb 2012 10:00:03 -0800
Subject: ARM: OMAP: Fix build error when mmc_omap is built as module

Otherwise we get the following error:

arch/arm/mach-omap2/built-in.o: In function `n8x0_mmc_callback':
twl-common.c:(.text+0x108a0): undefined reference to
`omap_mmc_notify_cover_event'

Fix this by warning about unusable MMC cover events.

The long term fix needs to change the MMC drivers to
register board specific callbacks directly with PMIC.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-n8x0.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index 42a4d11fad23..672262717601 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -371,7 +371,11 @@ static void n8x0_mmc_callback(void *data, u8 card_mask)
 	else
 		*openp = 0;
 
+#ifdef CONFIG_MMC_OMAP
 	omap_mmc_notify_cover_event(mmc_device, index, *openp);
+#else
+	pr_warn("MMC: notify cover event not available\n");
+#endif
 }
 
 static int n8x0_mmc_late_init(struct device *dev)
-- 
cgit v1.2.3


From a38449ef596b345e13a8f9b7d5cd9fedb8fcf921 Mon Sep 17 00:00:00 2001
From: Steven Rostedt
Date: Mon, 20 Feb 2012 15:29:34 -0500
Subject: x86: Specify a size for the cmp in the NMI handler

Linus noticed that the cmp used to check if the code segment is
__KERNEL_CS or not did not specify a size. Perhaps it does not matter
as H. Peter Anvin noted that user space can not set the bottom two
bits of the %cs register. But it's best not to let the assembly choose
and change things between different versions of gas, but instead just
pick the size.

Four bytes are used to compare the saved code segment against
__KERNEL_CS. Perhaps this might mess up Xen, but we can fix that when
the time comes.

Also I noticed that there was another non-specified cmp that checks
the special stack variable if it is 1 or 0. This too probably doesn't
matter what cmp is used, but this patch uses cmpl just to make it non
ambiguous.

Link: http://lkml.kernel.org/r/CA+55aFxfAn9MWRgS3O5k2tqN5ys1XrhSFVO5_9ZAoZKDVgNfGA@mail.gmail.com

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/x86/kernel/entry_64.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index debd851de6ff..1333d9851778 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1535,14 +1535,14 @@ ENTRY(nmi)
 	 * If %cs was not the kernel segment, then the NMI triggered in user
 	 * space, which means it is definitely not nested.
 	 */
-	cmp $__KERNEL_CS, 16(%rsp)
+	cmpl $__KERNEL_CS, 16(%rsp)
 	jne first_nmi
 
 	/*
 	 * Check the special variable on the stack to see if NMIs are
 	 * executing.
 	 */
-	cmp $1, -8(%rsp)
+	cmpl $1, -8(%rsp)
 	je nested_nmi
 
 	/*
-- 
cgit v1.2.3


From ebe8f7e59d0de3a97d264220deeffa90b8b14003 Mon Sep 17 00:00:00 2001
From: Arnout Vandecappelle (Essensium/Mind)
Date: Mon, 13 Feb 2012 09:35:22 +0100
Subject: OMAP3 EVM: remove out-of-bounds array access of gpio_leds

Otherwise we can get the following warning on some compilers:

arch/arm/mach-omap2/board-omap3evm.c:384:11:
warning: array subscript is above array bounds

The omap3evm BSP enables a GPIO LED on the twl4030 chip.  However,
the static gpio_leds array doesn't have an entry for it.  This is
most likely a copy-and-paste error, because it has been in there
since the first commit of the omap3evm BSP (53c5ec31).

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[tony@atomide.com: updated comments with the warning]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-omap3evm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index c775bead1497..c877236a8442 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -381,7 +381,7 @@ static int omap3evm_twl_gpio_setup(struct device *dev,
 	gpio_request_one(gpio + 7, GPIOF_OUT_INIT_LOW, "EN_DVI");
 
 	/* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
-	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+	gpio_leds[0].gpio = gpio + TWL4030_GPIO_MAX + 1;
 
 	platform_device_register(&leds_gpio);
 
-- 
cgit v1.2.3


From 2226957ed2d84add88368aa4c4f69eae4b4843a3 Mon Sep 17 00:00:00 2001
From: Tony Lindgren
Date: Tue, 21 Feb 2012 16:33:08 -0800
Subject: ARM: OMAP1: Fix out-of-bounds array access for Innovator

Otherwise we can get the following on some compilers:

arch/arm/mach-omap1/board-innovator.c:419:19: warning:
array subscript is above array bounds [-Warray-bounds]
arch/arm/mach-omap1/board-innovator.c:425:19: warning:
array subscript is above array bounds [-Warray-bounds]

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap1/board-innovator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index 309369ea6978..be2002f42dea 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -416,13 +416,13 @@ static void __init innovator_init(void)
 #ifdef CONFIG_ARCH_OMAP15XX
 	if (cpu_is_omap1510()) {
 		omap1_usb_init(&innovator1510_usb_config);
-		innovator_config[1].data = &innovator1510_lcd_config;
+		innovator_config[0].data = &innovator1510_lcd_config;
 	}
 #endif
 #ifdef CONFIG_ARCH_OMAP16XX
 	if (cpu_is_omap1610()) {
 		omap1_usb_init(&h2_usb_config);
-		innovator_config[1].data = &innovator1610_lcd_config;
+		innovator_config[0].data = &innovator1610_lcd_config;
 	}
 #endif
 	omap_board_config = innovator_config;
-- 
cgit v1.2.3


From 3f806e50981825fa56a7f1938f24c0680816be45 Mon Sep 17 00:00:00 2001
From: Borislav Petkov
Date: Fri, 3 Feb 2012 20:18:01 +0100
Subject: x86/mce/AMD: Fix UP build error

141168c36cde ("x86: Simplify code by removing a !SMP #ifdefs
from 'struct cpuinfo_x86'") removed a bunch of CONFIG_SMP ifdefs
around code touching struct cpuinfo_x86 members but also caused
the following build error with Randy's randconfigs:

mce_amd.c:(.cpuinit.text+0x4723): undefined reference to `cpu_llc_shared_map'

Restore the #ifdef in threshold_create_bank() which creates
symlinks on the non-BSP CPUs.

There's a better patch series being worked on by Kevin Winchester
which will solve this in a cleaner fashion, but that series is
too ambitious for v3.3 merging - so we first queue up this trivial
fix and then do the rest for v3.4.

Signed-off-by: Borislav Petkov <bp@alien8.de>
Acked-by: Kevin Winchester <kjwinchester@gmail.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Nick Bowler <nbowler@elliptictech.com>
Link: http://lkml.kernel.org/r/20120203191801.GA2846@x1.osrc.amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/mcheck/mce_amd.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 786e76a86322..e4eeaaf58a47 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -528,6 +528,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 
 	sprintf(name, "threshold_bank%i", bank);
 
+#ifdef CONFIG_SMP
 	if (cpu_data(cpu).cpu_core_id && shared_bank[bank]) {	/* symlink */
 		i = cpumask_first(cpu_llc_shared_mask(cpu));
 
@@ -553,6 +554,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 
 		goto out;
 	}
+#endif
 
 	b = kzalloc(sizeof(struct threshold_bank), GFP_KERNEL);
 	if (!b) {
-- 
cgit v1.2.3


From e4b0b2cbbbaa085103229c03820755f20a64e581 Mon Sep 17 00:00:00 2001
From: Matt Porter
Date: Thu, 23 Feb 2012 09:16:04 -0500
Subject: ARM: OMAP2+: gpmc-smsc911x: add required smsc911x regulators

This fixes smsc911x support on platforms using gpmc_smsc911x_init().

Commit c7e963f6888816 (net/smsc911x: Add regulator support) added
the requirement that platforms provide vdd33a and vddvario supplies.

Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/gpmc-smsc911x.c | 52 +++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c
index 997033129d26..bbb870c04a5e 100644
--- a/arch/arm/mach-omap2/gpmc-smsc911x.c
+++ b/arch/arm/mach-omap2/gpmc-smsc911x.c
@@ -19,6 +19,8 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
 
 #include <plat/board.h>
 #include <plat/gpmc.h>
@@ -42,6 +44,50 @@ static struct smsc911x_platform_config gpmc_smsc911x_config = {
 	.flags		= SMSC911X_USE_16BIT,
 };
 
+static struct regulator_consumer_supply gpmc_smsc911x_supply[] = {
+	REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+	REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
+/* Generic regulator definition to satisfy smsc911x */
+static struct regulator_init_data gpmc_smsc911x_reg_init_data = {
+	.constraints = {
+		.min_uV			= 3300000,
+		.max_uV			= 3300000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= ARRAY_SIZE(gpmc_smsc911x_supply),
+	.consumer_supplies	= gpmc_smsc911x_supply,
+};
+
+static struct fixed_voltage_config gpmc_smsc911x_fixed_reg_data = {
+	.supply_name		= "gpmc_smsc911x",
+	.microvolts		= 3300000,
+	.gpio			= -EINVAL,
+	.startup_delay		= 0,
+	.enable_high		= 0,
+	.enabled_at_boot	= 1,
+	.init_data		= &gpmc_smsc911x_reg_init_data,
+};
+
+/*
+ * Platform device id of 42 is a temporary fix to avoid conflicts
+ * with other reg-fixed-voltage devices. The real fix should
+ * involve the driver core providing a way of dynamically
+ * assigning a unique id on registration for platform devices
+ * in the same name space.
+ */
+static struct platform_device gpmc_smsc911x_regulator = {
+	.name		= "reg-fixed-voltage",
+	.id		= 42,
+	.dev = {
+		.platform_data	= &gpmc_smsc911x_fixed_reg_data,
+	},
+};
+
 /*
  * Initialize smsc911x device connected to the GPMC. Note that we
  * assume that pin multiplexing is done in the board-*.c file,
@@ -55,6 +101,12 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data)
 
 	gpmc_cfg = board_data;
 
+	ret = platform_device_register(&gpmc_smsc911x_regulator);
+	if (ret < 0) {
+		pr_err("Unable to register smsc911x regulators: %d\n", ret);
+		return;
+	}
+
 	if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) {
 		pr_err("Failed to request GPMC mem region\n");
 		return;
-- 
cgit v1.2.3


From 655850ed7e3e90dcb5ae88ae63f75acbf5465213 Mon Sep 17 00:00:00 2001
From: Ohad Ben-Cohen
Date: Thu, 23 Feb 2012 10:53:35 +0200
Subject: ARM: OMAP2: fix mailbox init code

Fix this:

arch/arm/mach-omap2/mailbox.c: In function 'omap2_mbox_probe':
arch/arm/mach-omap2/mailbox.c:354: error: 'omap2_mboxes' undeclared (first use in this function)
arch/arm/mach-omap2/mailbox.c:354: error: (Each undeclared identifier is reported only once
arch/arm/mach-omap2/mailbox.c:354: error: for each function it appears in.)

Which happens on CONFIG_ARCH_OMAP2 && !CONFIG_SOC_OMAP2420, due to
missing omap2_mboxes declaration.

In addition, make sure we declare the right mailbox instances for 2430.

Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/mailbox.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 609ea2ded7e3..415a6f1cf419 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -281,8 +281,16 @@ static struct omap_mbox mbox_iva_info = {
 	.ops	= &omap2_mbox_ops,
 	.priv	= &omap2_mbox_iva_priv,
 };
+#endif
 
-struct omap_mbox *omap2_mboxes[] = { &mbox_dsp_info, &mbox_iva_info, NULL };
+#ifdef CONFIG_ARCH_OMAP2
+struct omap_mbox *omap2_mboxes[] = {
+	&mbox_dsp_info,
+#ifdef CONFIG_SOC_OMAP2420
+	&mbox_iva_info,
+#endif
+	NULL
+};
 #endif
 
 #if defined(CONFIG_ARCH_OMAP4)
-- 
cgit v1.2.3


From 1d057720609ed052a6371fe1d53300e5e6328e94 Mon Sep 17 00:00:00 2001
From: David Howells
Date: Fri, 24 Feb 2012 18:01:27 +0100
Subject: [S390] KEYS: Enable the compat keyctl wrapper on s390x

Enable the compat keyctl wrapper on s390x so that 32-bit s390 userspace can
call the keyctl() syscall.

There's an s390x assembly wrapper that truncates all the register values to
32-bits and this then calls compat_sys_keyctl() - but the latter only exists if
CONFIG_KEYS_COMPAT is enabled, and the s390 Kconfig doesn't enable it.

Without this patch, 32-bit calls to the keyctl() syscall are given an ENOSYS
error:

	[root@devel4 ~]# keyctl show
	Session Keyring
	-3: key inaccessible (Function not implemented)

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: dan@danny.cz
Cc: Carsten Otte <cotte@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d1727584230a..6d99a5fcc090 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -227,6 +227,9 @@ config COMPAT
 config SYSVIPC_COMPAT
 	def_bool y if COMPAT && SYSVIPC
 
+config KEYS_COMPAT
+	def_bool y if COMPAT && KEYS
+
 config AUDIT_ARCH
 	def_bool y
 
-- 
cgit v1.2.3


From d60331ac0d961ae063e69c43f09d14244ad5d921 Mon Sep 17 00:00:00 2001
From: Danny Kukawka
Date: Fri, 24 Feb 2012 18:01:28 +0100
Subject: [S390] crash_dump: remove duplicate include

arch/s390/kernel/crash_dump.c included 'linux/crash_dump.h' twice,
remove the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/crash_dump.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch')

diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 39f8fd4438fc..c383ce440d99 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -11,7 +11,6 @@
 #include <linux/module.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
-#include <linux/crash_dump.h>
 #include <linux/bootmem.h>
 #include <linux/elf.h>
 #include <asm/ipl.h>
-- 
cgit v1.2.3


From 892365ab4d29ed861709ee8611b53587ca2bb75f Mon Sep 17 00:00:00 2001
From: Gerald Schaefer
Date: Fri, 24 Feb 2012 18:01:29 +0100
Subject: [S390] memory hotplug: prevent memory zone interleave

This fixes a kernel oops with CONFIG_DEBUG_VM triggered by a
VM_BUG_ON(bad_range()): kernel BUG at mm/page_alloc.c:748.

With memory hotplug on System z, it is possible that the memory
online/offline state is preserved over a system restart, e.g. there
may be offline memory blocks in ZONE_DMA or ZONE_NORMAL. So far,
the offline memory range has always been added to ZONE_MOVABLE during
system start, so that it was possible to have ZONE_MOVABLE interleave
with ZONE_DMA or ZONE_NORMAL. This patch fixes that by checking for
zone overlap before adding memory.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/init.c | 30 ++++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 5d633019d8f3..50236610de83 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -223,16 +223,38 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 #ifdef CONFIG_MEMORY_HOTPLUG
 int arch_add_memory(int nid, u64 start, u64 size)
 {
-	struct pglist_data *pgdat;
+	unsigned long zone_start_pfn, zone_end_pfn, nr_pages;
+	unsigned long start_pfn = PFN_DOWN(start);
+	unsigned long size_pages = PFN_DOWN(size);
 	struct zone *zone;
 	int rc;
 
-	pgdat = NODE_DATA(nid);
-	zone = pgdat->node_zones + ZONE_MOVABLE;
 	rc = vmem_add_mapping(start, size);
 	if (rc)
 		return rc;
-	rc = __add_pages(nid, zone, PFN_DOWN(start), PFN_DOWN(size));
+	for_each_zone(zone) {
+		if (zone_idx(zone) != ZONE_MOVABLE) {
+			/* Add range within existing zone limits */
+			zone_start_pfn = zone->zone_start_pfn;
+			zone_end_pfn = zone->zone_start_pfn +
+				       zone->spanned_pages;
+		} else {
+			/* Add remaining range to ZONE_MOVABLE */
+			zone_start_pfn = start_pfn;
+			zone_end_pfn = start_pfn + size_pages;
+		}
+		if (start_pfn < zone_start_pfn || start_pfn >= zone_end_pfn)
+			continue;
+		nr_pages = (start_pfn + size_pages > zone_end_pfn) ?
+			   zone_end_pfn - start_pfn : size_pages;
+		rc = __add_pages(nid, zone, start_pfn, nr_pages);
+		if (rc)
+			break;
+		start_pfn += nr_pages;
+		size_pages -= nr_pages;
+		if (!size_pages)
+			break;
+	}
 	if (rc)
 		vmem_remove_mapping(start, size);
 	return rc;
-- 
cgit v1.2.3


From 435792d93410f008120c4dbab148019a3cc31dbc Mon Sep 17 00:00:00 2001
From: Ohad Ben-Cohen
Date: Sun, 26 Feb 2012 12:14:14 +0200
Subject: ARM: OMAP: make iommu subsys_initcall to fix builtin omap3isp

omap3isp depends on omap's iommu and will fail to probe if
initialized before it (which always happen if they are builtin).

Make omap's iommu subsys_initcall as an interim solution until
the probe deferral mechanism is merged.

Reported-by: James <angweiyang@gmail.com>
Debugged-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: stable <stable@vger.kernel.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Cc: Joerg Roedel <Joerg.Roedel@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/arm/mach-omap2/mailbox.c | 3 ++-
 drivers/iommu/omap-iommu.c    | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 609ea2ded7e3..a6db1e4f7b6e 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -412,7 +412,8 @@ static void __exit omap2_mbox_exit(void)
 	platform_driver_unregister(&omap2_mbox_driver);
 }
 
-module_init(omap2_mbox_init);
+/* must be ready before omap3isp is probed */
+subsys_initcall(omap2_mbox_init);
 module_exit(omap2_mbox_exit);
 
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index d8edd979d01b..6899dcd02dfa 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1223,7 +1223,8 @@ static int __init omap_iommu_init(void)
 
 	return platform_driver_register(&omap_iommu_driver);
 }
-module_init(omap_iommu_init);
+/* must be ready before omap3isp is probed */
+subsys_initcall(omap_iommu_init);
 
 static void __exit omap_iommu_exit(void)
 {
-- 
cgit v1.2.3


From 048cd4e51d24ebf7f3552226d03c769d6ad91658 Mon Sep 17 00:00:00 2001
From: Heiko Carstens
Date: Mon, 27 Feb 2012 10:01:52 +0100
Subject: compat: fix compile breakage on s390

The new is_compat_task() define for the !COMPAT case in
include/linux/compat.h conflicts with a similar define in
arch/s390/include/asm/compat.h.

This is the minimal patch which fixes the build issues.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/s390/include/asm/compat.h  | 7 -------
 arch/s390/kernel/process.c      | 1 -
 arch/s390/kernel/ptrace.c       | 2 +-
 arch/s390/kernel/setup.c        | 2 +-
 arch/s390/kernel/signal.c       | 1 -
 arch/s390/mm/fault.c            | 1 -
 arch/s390/mm/mmap.c             | 2 +-
 drivers/s390/block/dasd_eckd.c  | 2 +-
 drivers/s390/block/dasd_ioctl.c | 1 +
 drivers/s390/char/fs3270.c      | 1 +
 drivers/s390/char/vmcp.c        | 1 +
 drivers/s390/cio/chsc_sch.c     | 1 +
 drivers/s390/scsi/zfcp_cfdc.c   | 1 +
 13 files changed, 9 insertions(+), 14 deletions(-)

(limited to 'arch')

diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 2e49748b27da..234f1d859cea 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -172,13 +172,6 @@ static inline int is_compat_task(void)
 	return is_32bit_task();
 }
 
-#else
-
-static inline int is_compat_task(void)
-{
-	return 0;
-}
-
 #endif
 
 static inline void __user *arch_compat_alloc_user_space(long len)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 4261aa799774..e795933eb2cb 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -29,7 +29,6 @@
 #include <asm/irq.h>
 #include <asm/timer.h>
 #include <asm/nmi.h>
-#include <asm/compat.h>
 #include <asm/smp.h>
 #include "entry.h"
 
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 9d82ed4bcb27..61f95489d70c 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -20,8 +20,8 @@
 #include <linux/regset.h>
 #include <linux/tracehook.h>
 #include <linux/seccomp.h>
+#include <linux/compat.h>
 #include <trace/syscall.h>
-#include <asm/compat.h>
 #include <asm/segment.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 354de0763eff..3b2efc81f34e 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -46,6 +46,7 @@
 #include <linux/kexec.h>
 #include <linux/crash_dump.h>
 #include <linux/memory.h>
+#include <linux/compat.h>
 
 #include <asm/ipl.h>
 #include <asm/uaccess.h>
@@ -59,7 +60,6 @@
 #include <asm/ptrace.h>
 #include <asm/sections.h>
 #include <asm/ebcdic.h>
-#include <asm/compat.h>
 #include <asm/kvm_virtio.h>
 #include <asm/diag.h>
 
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index a8ba840294ff..2d421d90fada 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -30,7 +30,6 @@
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/lowcore.h>
-#include <asm/compat.h>
 #include "entry.h"
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 354dd39073ef..e8fcd928dc78 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -36,7 +36,6 @@
 #include <asm/pgtable.h>
 #include <asm/irq.h>
 #include <asm/mmu_context.h>
-#include <asm/compat.h>
 #include "../kernel/entry.h"
 
 #ifndef CONFIG_64BIT
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index f09c74881b7e..a0155c02e324 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -29,8 +29,8 @@
 #include <linux/mman.h>
 #include <linux/module.h>
 #include <linux/random.h>
+#include <linux/compat.h>
 #include <asm/pgalloc.h>
-#include <asm/compat.h>
 
 static unsigned long stack_maxrandom_size(void)
 {
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 70880be26015..2617b1ed4709 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -18,12 +18,12 @@
 #include <linux/hdreg.h>	/* HDIO_GETGEO			    */
 #include <linux/bio.h>
 #include <linux/module.h>
+#include <linux/compat.h>
 #include <linux/init.h>
 
 #include <asm/debug.h>
 #include <asm/idals.h>
 #include <asm/ebcdic.h>
-#include <asm/compat.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include <asm/cio.h>
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index f1a2016829fc..792c69e78fe2 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -13,6 +13,7 @@
 #define KMSG_COMPONENT "dasd"
 
 #include <linux/interrupt.h>
+#include <linux/compat.h>
 #include <linux/major.h>
 #include <linux/fs.h>
 #include <linux/blkpg.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index e71298158f9e..911704571b9c 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -11,6 +11,7 @@
 #include <linux/console.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/list.h>
 #include <linux/slab.h>
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 75bde6a8b7dc..89c03e6b1c0c 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -13,6 +13,7 @@
 
 #include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/miscdevice.h>
 #include <linux/slab.h>
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 0c87b0fc7714..8f9a1a384496 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/compat.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
index 303dde09d294..fab2c2592a97 100644
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ b/drivers/s390/scsi/zfcp_cfdc.c
@@ -11,6 +11,7 @@
 #define KMSG_COMPONENT "zfcp"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
+#include <linux/compat.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/miscdevice.h>
-- 
cgit v1.2.3


From f6737055c1c432a9628a9a731f9881ad8e0a9eee Mon Sep 17 00:00:00 2001
From: Roland Stigge
Date: Mon, 27 Feb 2012 17:28:02 +0100
Subject: ARM: LPC32xx: Fix irq on GPI_28

The GPI_28 IRQ was not registered properly. The registration of
IRQ_LPC32XX_GPI_28 was added and the (wrong) IRQ_LPC32XX_GPI_11 at
LPC32XX_SIC1_IRQ(4) was replaced by IRQ_LPC32XX_GPI_28 (see manual of
LPC32xx / interrupt controller).

Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
---
 arch/arm/mach-lpc32xx/include/mach/irqs.h | 2 +-
 arch/arm/mach-lpc32xx/irq.c               | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-lpc32xx/include/mach/irqs.h b/arch/arm/mach-lpc32xx/include/mach/irqs.h
index 2667f52e3b04..9e3b90df32e1 100644
--- a/arch/arm/mach-lpc32xx/include/mach/irqs.h
+++ b/arch/arm/mach-lpc32xx/include/mach/irqs.h
@@ -61,7 +61,7 @@
  */
 #define IRQ_LPC32XX_JTAG_COMM_TX	LPC32XX_SIC1_IRQ(1)
 #define IRQ_LPC32XX_JTAG_COMM_RX	LPC32XX_SIC1_IRQ(2)
-#define IRQ_LPC32XX_GPI_11		LPC32XX_SIC1_IRQ(4)
+#define IRQ_LPC32XX_GPI_28		LPC32XX_SIC1_IRQ(4)
 #define IRQ_LPC32XX_TS_P		LPC32XX_SIC1_IRQ(6)
 #define IRQ_LPC32XX_TS_IRQ		LPC32XX_SIC1_IRQ(7)
 #define IRQ_LPC32XX_TS_AUX		LPC32XX_SIC1_IRQ(8)
diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
index 4eae566dfdc7..ce4b5570bd62 100644
--- a/arch/arm/mach-lpc32xx/irq.c
+++ b/arch/arm/mach-lpc32xx/irq.c
@@ -118,6 +118,10 @@ static const struct lpc32xx_event_info lpc32xx_events[NR_IRQS] = {
 		.event_group = &lpc32xx_event_pin_regs,
 		.mask = LPC32XX_CLKPWR_EXTSRC_GPI_06_BIT,
 	},
+	[IRQ_LPC32XX_GPI_28] = {
+		.event_group = &lpc32xx_event_pin_regs,
+		.mask = LPC32XX_CLKPWR_EXTSRC_GPI_28_BIT,
+	},
 	[IRQ_LPC32XX_GPIO_00] = {
 		.event_group = &lpc32xx_event_int_regs,
 		.mask = LPC32XX_CLKPWR_INTSRC_GPIO_00_BIT,
-- 
cgit v1.2.3


From 35dd0a75d4a382e7f769dd0277732e7aa5235718 Mon Sep 17 00:00:00 2001
From: Roland Stigge
Date: Mon, 27 Feb 2012 17:28:02 +0100
Subject: ARM: LPC32xx: Fix interrupt controller init

This patch fixes the initialization of the interrupt controller of the LPC32xx
by correctly setting up SIC1 and SIC2 instead of (wrongly) using the same value
as for the Main Interrupt Controller (MIC).

Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
---
 arch/arm/mach-lpc32xx/irq.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
index ce4b5570bd62..d3bf9c11fd66 100644
--- a/arch/arm/mach-lpc32xx/irq.c
+++ b/arch/arm/mach-lpc32xx/irq.c
@@ -384,13 +384,15 @@ void __init lpc32xx_init_irq(void)
 
 	/* Setup SIC1 */
 	__raw_writel(0, LPC32XX_INTC_MASK(LPC32XX_SIC1_BASE));
-	__raw_writel(MIC_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC1_BASE));
-	__raw_writel(MIC_ATR_DEFAULT, LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC1_BASE));
+	__raw_writel(SIC1_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC1_BASE));
+	__raw_writel(SIC1_ATR_DEFAULT,
+				LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC1_BASE));
 
 	/* Setup SIC2 */
 	__raw_writel(0, LPC32XX_INTC_MASK(LPC32XX_SIC2_BASE));
-	__raw_writel(MIC_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC2_BASE));
-	__raw_writel(MIC_ATR_DEFAULT, LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC2_BASE));
+	__raw_writel(SIC2_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC2_BASE));
+	__raw_writel(SIC2_ATR_DEFAULT,
+				LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC2_BASE));
 
 	/* Configure supported IRQ's */
 	for (i = 0; i < NR_IRQS; i++) {
-- 
cgit v1.2.3


From 94ed7830cba4dce57b18a2926b5d826bfd184bd6 Mon Sep 17 00:00:00 2001
From: Roland Stigge
Date: Mon, 27 Feb 2012 17:28:02 +0100
Subject: ARM: LPC32xx: irq.c: Clear latched event

This patch fixes the wakeup disable function by clearing latched events.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
---
 arch/arm/mach-lpc32xx/irq.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
index d3bf9c11fd66..c74de01ab5b6 100644
--- a/arch/arm/mach-lpc32xx/irq.c
+++ b/arch/arm/mach-lpc32xx/irq.c
@@ -309,9 +309,18 @@ static int lpc32xx_irq_wake(struct irq_data *d, unsigned int state)
 
 		if (state)
 			eventreg |= lpc32xx_events[d->irq].mask;
-		else
+		else {
 			eventreg &= ~lpc32xx_events[d->irq].mask;
 
+			/*
+			 * When disabling the wakeup, clear the latched
+			 * event
+			 */
+			__raw_writel(lpc32xx_events[d->irq].mask,
+				lpc32xx_events[d->irq].
+				event_group->rawstat_reg);
+		}
+
 		__raw_writel(eventreg,
 			lpc32xx_events[d->irq].event_group->enab_reg);
 
-- 
cgit v1.2.3


From 2707208ee8a80dbbd5426f5aa1a934f766825bb5 Mon Sep 17 00:00:00 2001
From: Roland Stigge
Date: Mon, 27 Feb 2012 17:28:02 +0100
Subject: ARM: LPC32xx: serial.c: HW bug workaround

This patch fixes a HW bug by flushing RX FIFOs of the UARTs on init. It was
ported from NXP's git.lpclinux.com tree.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
---
 arch/arm/mach-lpc32xx/serial.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-lpc32xx/serial.c b/arch/arm/mach-lpc32xx/serial.c
index 429cfdbb2b3d..1a3fd4ce0469 100644
--- a/arch/arm/mach-lpc32xx/serial.c
+++ b/arch/arm/mach-lpc32xx/serial.c
@@ -88,6 +88,7 @@ struct uartinit {
 	char *uart_ck_name;
 	u32 ck_mode_mask;
 	void __iomem *pdiv_clk_reg;
+	resource_size_t mapbase;
 };
 
 static struct uartinit uartinit_data[] __initdata = {
@@ -97,6 +98,7 @@ static struct uartinit uartinit_data[] __initdata = {
 		.ck_mode_mask =
 			LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 5),
 		.pdiv_clk_reg = LPC32XX_CLKPWR_UART5_CLK_CTRL,
+		.mapbase = LPC32XX_UART5_BASE,
 	},
 #endif
 #ifdef CONFIG_ARCH_LPC32XX_UART3_SELECT
@@ -105,6 +107,7 @@ static struct uartinit uartinit_data[] __initdata = {
 		.ck_mode_mask =
 			LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 3),
 		.pdiv_clk_reg = LPC32XX_CLKPWR_UART3_CLK_CTRL,
+		.mapbase = LPC32XX_UART3_BASE,
 	},
 #endif
 #ifdef CONFIG_ARCH_LPC32XX_UART4_SELECT
@@ -113,6 +116,7 @@ static struct uartinit uartinit_data[] __initdata = {
 		.ck_mode_mask =
 			LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 4),
 		.pdiv_clk_reg = LPC32XX_CLKPWR_UART4_CLK_CTRL,
+		.mapbase = LPC32XX_UART4_BASE,
 	},
 #endif
 #ifdef CONFIG_ARCH_LPC32XX_UART6_SELECT
@@ -121,6 +125,7 @@ static struct uartinit uartinit_data[] __initdata = {
 		.ck_mode_mask =
 			LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 6),
 		.pdiv_clk_reg = LPC32XX_CLKPWR_UART6_CLK_CTRL,
+		.mapbase = LPC32XX_UART6_BASE,
 	},
 #endif
 };
@@ -165,6 +170,19 @@ void __init lpc32xx_serial_init(void)
 
 		/* pre-UART clock divider set to 1 */
 		__raw_writel(0x0101, uartinit_data[i].pdiv_clk_reg);
+
+		/*
+		 * Force a flush of the RX FIFOs to work around a
+		 * HW bug
+		 */
+		puart = uartinit_data[i].mapbase;
+		__raw_writel(0xC1, LPC32XX_UART_IIR_FCR(puart));
+		__raw_writel(0x00, LPC32XX_UART_DLL_FIFO(puart));
+		j = LPC32XX_SUART_FIFO_SIZE;
+		while (j--)
+			tmp = __raw_readl(
+				LPC32XX_UART_DLL_FIFO(puart));
+		__raw_writel(0, LPC32XX_UART_IIR_FCR(puart));
 	}
 
 	/* This needs to be done after all UART clocks are setup */
-- 
cgit v1.2.3


From ff424aa4c89d19082e8ae5a3351006bc8a4cd91b Mon Sep 17 00:00:00 2001
From: Roland Stigge
Date: Mon, 27 Feb 2012 17:28:03 +0100
Subject: ARM: LPC32xx: serial.c: Fixed loop limit

This patch fixes a wrong loop limit on UART init.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Cc: stable@vger.kernel.org
---
 arch/arm/mach-lpc32xx/serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-lpc32xx/serial.c b/arch/arm/mach-lpc32xx/serial.c
index 1a3fd4ce0469..f2735281616a 100644
--- a/arch/arm/mach-lpc32xx/serial.c
+++ b/arch/arm/mach-lpc32xx/serial.c
@@ -187,7 +187,7 @@ void __init lpc32xx_serial_init(void)
 
 	/* This needs to be done after all UART clocks are setup */
 	__raw_writel(clkmodes, LPC32XX_UARTCTL_CLKMODE);
-	for (i = 0; i < ARRAY_SIZE(uartinit_data) - 1; i++) {
+	for (i = 0; i < ARRAY_SIZE(uartinit_data); i++) {
 		/* Force a flush of the RX FIFOs to work around a HW bug */
 		puart = serial_std_platform_data[i].mapbase;
 		__raw_writel(0xC1, LPC32XX_UART_IIR_FCR(puart));
-- 
cgit v1.2.3


From aabb70dc23799e09d69d528756471d854f993136 Mon Sep 17 00:00:00 2001
From: James Bottomley
Date: Mon, 27 Feb 2012 21:41:05 +0000
Subject: [PARISC] don't unconditionally override CROSS_COMPILE for 64 bit.

The user may wish to set their own value (for real cross compiles).  Since the
top level Makefile initialises CROSS_COMPILE to empty by default, we must
check it for being empty (rather than for being defined) before we override.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 arch/parisc/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch')

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 55cca1dac431..19ab7b2ea1cd 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -31,7 +31,11 @@ ifdef CONFIG_64BIT
 UTS_MACHINE	:= parisc64
 CHECKFLAGS	+= -D__LP64__=1 -m64
 WIDTH		:= 64
+
+# FIXME: if no default set, should really try to locate dynamically
+ifeq ($(CROSS_COMPILE),)
 CROSS_COMPILE	:= hppa64-linux-gnu-
+endif
 else # 32-bit
 WIDTH		:=
 endif
-- 
cgit v1.2.3


From 1018faa6cf23b256bf25919ef203cd7c129f06f2 Mon Sep 17 00:00:00 2001
From: Joerg Roedel
Date: Wed, 29 Feb 2012 14:57:32 +0100
Subject: perf/x86/kvm: Fix Host-Only/Guest-Only counting with SVM disabled

It turned out that a performance counter on AMD does not
count at all when the GO or HO bit is set in the control
register and SVM is disabled in EFER.

This patch works around this issue by masking out the HO bit
in the performance counter control register when SVM is not
enabled.

The GO bit is not touched because it is only set when the
user wants to count in guest-mode only. So when SVM is
disabled the counter should not run at all and the
not-counting is the intended behaviour.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Avi Kivity <avi@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: stable@vger.kernel.org # v3.2
Link: http://lkml.kernel.org/r/1330523852-19566-1-git-send-email-joerg.roedel@amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/include/asm/perf_event.h    |  8 ++++++++
 arch/x86/kernel/cpu/perf_event.h     |  8 ++++++--
 arch/x86/kernel/cpu/perf_event_amd.c | 37 ++++++++++++++++++++++++++++++++++--
 arch/x86/kvm/svm.c                   |  5 +++++
 4 files changed, 54 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 096c975e099f..461ce432b1c2 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -242,4 +242,12 @@ static inline void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap)
 static inline void perf_events_lapic_init(void)	{ }
 #endif
 
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD)
+ extern void amd_pmu_enable_virt(void);
+ extern void amd_pmu_disable_virt(void);
+#else
+ static inline void amd_pmu_enable_virt(void) { }
+ static inline void amd_pmu_disable_virt(void) { }
+#endif
+
 #endif /* _ASM_X86_PERF_EVENT_H */
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 8944062f46e2..c30c807ddc72 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -147,7 +147,9 @@ struct cpu_hw_events {
 	/*
 	 * AMD specific bits
 	 */
-	struct amd_nb		*amd_nb;
+	struct amd_nb			*amd_nb;
+	/* Inverted mask of bits to clear in the perf_ctr ctrl registers */
+	u64				perf_ctr_virt_mask;
 
 	void				*kfree_on_online;
 };
@@ -417,9 +419,11 @@ void x86_pmu_disable_all(void);
 static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
 					  u64 enable_mask)
 {
+	u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
+
 	if (hwc->extra_reg.reg)
 		wrmsrl(hwc->extra_reg.reg, hwc->extra_reg.config);
-	wrmsrl(hwc->config_base, hwc->config | enable_mask);
+	wrmsrl(hwc->config_base, (hwc->config | enable_mask) & ~disable_mask);
 }
 
 void x86_pmu_enable_all(int added);
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index 0397b23be8e9..67250a52430b 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -1,4 +1,5 @@
 #include <linux/perf_event.h>
+#include <linux/export.h>
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -357,7 +358,9 @@ static void amd_pmu_cpu_starting(int cpu)
 	struct amd_nb *nb;
 	int i, nb_id;
 
-	if (boot_cpu_data.x86_max_cores < 2)
+	cpuc->perf_ctr_virt_mask = AMD_PERFMON_EVENTSEL_HOSTONLY;
+
+	if (boot_cpu_data.x86_max_cores < 2 || boot_cpu_data.x86 == 0x15)
 		return;
 
 	nb_id = amd_get_nb_id(cpu);
@@ -587,9 +590,9 @@ static __initconst const struct x86_pmu amd_pmu_f15h = {
 	.put_event_constraints	= amd_put_event_constraints,
 
 	.cpu_prepare		= amd_pmu_cpu_prepare,
-	.cpu_starting		= amd_pmu_cpu_starting,
 	.cpu_dead		= amd_pmu_cpu_dead,
 #endif
+	.cpu_starting		= amd_pmu_cpu_starting,
 };
 
 __init int amd_pmu_init(void)
@@ -621,3 +624,33 @@ __init int amd_pmu_init(void)
 
 	return 0;
 }
+
+void amd_pmu_enable_virt(void)
+{
+	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+
+	cpuc->perf_ctr_virt_mask = 0;
+
+	/* Reload all events */
+	x86_pmu_disable_all();
+	x86_pmu_enable_all(0);
+}
+EXPORT_SYMBOL_GPL(amd_pmu_enable_virt);
+
+void amd_pmu_disable_virt(void)
+{
+	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+
+	/*
+	 * We only mask out the Host-only bit so that host-only counting works
+	 * when SVM is disabled. If someone sets up a guest-only counter when
+	 * SVM is disabled the Guest-only bits still gets set and the counter
+	 * will not count anything.
+	 */
+	cpuc->perf_ctr_virt_mask = AMD_PERFMON_EVENTSEL_HOSTONLY;
+
+	/* Reload all events */
+	x86_pmu_disable_all();
+	x86_pmu_enable_all(0);
+}
+EXPORT_SYMBOL_GPL(amd_pmu_disable_virt);
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 5fa553babe56..e385214711cb 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -29,6 +29,7 @@
 #include <linux/ftrace_event.h>
 #include <linux/slab.h>
 
+#include <asm/perf_event.h>
 #include <asm/tlbflush.h>
 #include <asm/desc.h>
 #include <asm/kvm_para.h>
@@ -575,6 +576,8 @@ static void svm_hardware_disable(void *garbage)
 		wrmsrl(MSR_AMD64_TSC_RATIO, TSC_RATIO_DEFAULT);
 
 	cpu_svm_disable();
+
+	amd_pmu_disable_virt();
 }
 
 static int svm_hardware_enable(void *garbage)
@@ -622,6 +625,8 @@ static int svm_hardware_enable(void *garbage)
 
 	svm_init_erratum_383();
 
+	amd_pmu_enable_virt();
+
 	return 0;
 }
 
-- 
cgit v1.2.3


From 9613b2100994da3cd2a23d886596980357ff6123 Mon Sep 17 00:00:00 2001
From: Haojian Zhuang
Date: Thu, 1 Mar 2012 13:07:06 +0800
Subject: ARM: mmp: enable rtc clk in pxa168

Enable clk of rtc-sa1100 device in pxa168.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mach-mmp/pxa168.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
index ada1213982b4..e3d3533a5a3b 100644
--- a/arch/arm/mach-mmp/pxa168.c
+++ b/arch/arm/mach-mmp/pxa168.c
@@ -64,6 +64,7 @@ static APBC_CLK(ssp4, PXA168_SSP4, 4, 0);
 static APBC_CLK(ssp5, PXA168_SSP5, 4, 0);
 static APBC_CLK(gpio, PXA168_GPIO, 0, 13000000);
 static APBC_CLK(keypad, PXA168_KPC, 0, 32000);
+static APBC_CLK(rtc, PXA168_RTC, 8, 32768);
 
 static APMU_CLK(nand, NAND, 0x19b, 156000000);
 static APMU_CLK(lcd, LCD, 0x7f, 312000000);
@@ -92,6 +93,7 @@ static struct clk_lookup pxa168_clkregs[] = {
 	INIT_CLKREG(&clk_keypad, "pxa27x-keypad", NULL),
 	INIT_CLKREG(&clk_eth, "pxa168-eth", "MFUCLK"),
 	INIT_CLKREG(&clk_usb, "pxa168-ehci", "PXA168-USBCLK"),
+	INIT_CLKREG(&clk_rtc, "sa1100-rtc", NULL),
 };
 
 static int __init pxa168_init(void)
-- 
cgit v1.2.3


From 5d48976678456f3782eeafb09efae1f52159d5e6 Mon Sep 17 00:00:00 2001
From: Haojian Zhuang
Date: Thu, 1 Mar 2012 13:25:09 +0800
Subject: ARM: mmp: append OF support on pxa168

Enable PXA168 and aspenite support.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mach-mmp/Kconfig  | 10 +++++++
 arch/arm/mach-mmp/Makefile |  1 +
 arch/arm/mach-mmp/mmp-dt.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 86 insertions(+)
 create mode 100644 arch/arm/mach-mmp/mmp-dt.c

(limited to 'arch')

diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig
index 323d4c9e9f44..5a90b9a3ab6e 100644
--- a/arch/arm/mach-mmp/Kconfig
+++ b/arch/arm/mach-mmp/Kconfig
@@ -2,6 +2,16 @@ if ARCH_MMP
 
 menu "Marvell PXA168/910/MMP2 Implmentations"
 
+config MACH_MMP_DT
+	bool "Support MMP2 platforms from device tree"
+	select CPU_PXA168
+	select CPU_PXA910
+	select USE_OF
+	help
+	  Include support for Marvell MMP2 based platforms using
+	  the device tree. Needn't select any other machine while
+	  MACH_MMP_DT is enabled.
+
 config MACH_ASPENITE
 	bool "Marvell's PXA168 Aspenite Development Board"
 	select CPU_PXA168
diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile
index ba254a71691a..4fc0ff5dc96d 100644
--- a/arch/arm/mach-mmp/Makefile
+++ b/arch/arm/mach-mmp/Makefile
@@ -18,5 +18,6 @@ obj-$(CONFIG_MACH_TTC_DKB)	+= ttc_dkb.o
 obj-$(CONFIG_MACH_BROWNSTONE)	+= brownstone.o
 obj-$(CONFIG_MACH_FLINT)	+= flint.o
 obj-$(CONFIG_MACH_MARVELL_JASPER) += jasper.o
+obj-$(CONFIG_MACH_MMP_DT)	+= mmp-dt.o
 obj-$(CONFIG_MACH_TETON_BGA)	+= teton_bga.o
 obj-$(CONFIG_MACH_GPLUGD)	+= gplugd.o
diff --git a/arch/arm/mach-mmp/mmp-dt.c b/arch/arm/mach-mmp/mmp-dt.c
new file mode 100644
index 000000000000..67075395e400
--- /dev/null
+++ b/arch/arm/mach-mmp/mmp-dt.c
@@ -0,0 +1,75 @@
+/*
+ *  linux/arch/arm/mach-mmp/mmp-dt.c
+ *
+ *  Copyright (C) 2012 Marvell Technology Group Ltd.
+ *  Author: Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  publishhed by the Free Software Foundation.
+ */
+
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <mach/irqs.h>
+
+#include "common.h"
+
+extern struct sys_timer pxa168_timer;
+extern void __init icu_init_irq(void);
+
+static const struct of_dev_auxdata mmp_auxdata_lookup[] __initconst = {
+	OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.0", NULL),
+	OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.1", NULL),
+	OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4026000, "pxa2xx-uart.2", NULL),
+	OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL),
+	OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4025000, "pxa2xx-i2c.1", NULL),
+	OF_DEV_AUXDATA("mrvl,mmp-gpio", 0xd4019000, "pxa-gpio", NULL),
+	OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL),
+	{}
+};
+
+static int __init mmp_intc_add_irq_domain(struct device_node *np,
+					   struct device_node *parent)
+{
+	irq_domain_add_simple(np, 0);
+	return 0;
+}
+
+static int __init mmp_gpio_add_irq_domain(struct device_node *np,
+					   struct device_node *parent)
+{
+	irq_domain_add_simple(np, IRQ_GPIO_START);
+	return 0;
+}
+
+static const struct of_device_id mmp_irq_match[] __initconst = {
+	{ .compatible = "mrvl,mmp-intc", .data = mmp_intc_add_irq_domain, },
+	{ .compatible = "mrvl,mmp-gpio", .data = mmp_gpio_add_irq_domain, },
+	{}
+};
+
+static void __init mmp_dt_init(void)
+{
+
+	of_irq_init(mmp_irq_match);
+
+	of_platform_populate(NULL, of_default_bus_match_table,
+			     mmp_auxdata_lookup, NULL);
+}
+
+static const char *pxa168_dt_board_compat[] __initdata = {
+	"mrvl,pxa168-aspenite",
+	NULL,
+};
+
+DT_MACHINE_START(PXA168_DT, "Marvell PXA168 (Device Tree Support)")
+	.map_io		= mmp_map_io,
+	.init_irq	= icu_init_irq,
+	.timer		= &pxa168_timer,
+	.init_machine	= mmp_dt_init,
+	.dt_compat	= pxa168_dt_board_compat,
+MACHINE_END
-- 
cgit v1.2.3


From 10d77ec21a748e7ddaf6410bd08959769764520c Mon Sep 17 00:00:00 2001
From: Haojian Zhuang
Date: Thu, 1 Mar 2012 13:26:15 +0800
Subject: ARM: dts: append DTS file of pxa168

DTS files of both PXA168 and aspenite are appended.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/boot/dts/pxa168-aspenite.dts | 38 ++++++++++++++
 arch/arm/boot/dts/pxa168.dtsi         | 98 +++++++++++++++++++++++++++++++++++
 2 files changed, 136 insertions(+)
 create mode 100644 arch/arm/boot/dts/pxa168-aspenite.dts
 create mode 100644 arch/arm/boot/dts/pxa168.dtsi

(limited to 'arch')

diff --git a/arch/arm/boot/dts/pxa168-aspenite.dts b/arch/arm/boot/dts/pxa168-aspenite.dts
new file mode 100644
index 000000000000..e762facb3fa4
--- /dev/null
+++ b/arch/arm/boot/dts/pxa168-aspenite.dts
@@ -0,0 +1,38 @@
+/*
+ *  Copyright (C) 2012 Marvell Technology Group Ltd.
+ *  Author: Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  publishhed by the Free Software Foundation.
+ */
+
+/dts-v1/;
+/include/ "pxa168.dtsi"
+
+/ {
+	model = "Marvell PXA168 Aspenite Development Board";
+	compatible = "mrvl,pxa168-aspenite", "mrvl,pxa168";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 root=/dev/nfs nfsroot=192.168.1.100:/nfsroot/ ip=192.168.1.101:192.168.1.100::255.255.255.0::eth0:on";
+	};
+
+	memory {
+		reg = <0x00000000 0x04000000>;
+	};
+
+	soc {
+		apb@d4000000 {
+			uart1: uart@d4017000 {
+				status = "okay";
+			};
+			twsi1: i2c@d4011000 {
+				status = "okay";
+			};
+			rtc: rtc@d4010000 {
+				status = "okay";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/pxa168.dtsi b/arch/arm/boot/dts/pxa168.dtsi
new file mode 100644
index 000000000000..d32d5128f225
--- /dev/null
+++ b/arch/arm/boot/dts/pxa168.dtsi
@@ -0,0 +1,98 @@
+/*
+ *  Copyright (C) 2012 Marvell Technology Group Ltd.
+ *  Author: Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  publishhed by the Free Software Foundation.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+	aliases {
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		i2c0 = &twsi1;
+		i2c1 = &twsi2;
+	};
+
+	intc: intc-interrupt-controller@d4282000 {
+		compatible = "mrvl,mmp-intc", "mrvl,intc";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		reg = <0xd4282000 0x1000>;
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		interrupt-parent = <&intc>;
+		ranges;
+
+		apb@d4000000 {	/* APB */
+			compatible = "mrvl,apb-bus", "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0xd4000000 0x00200000>;
+			ranges;
+
+			uart1: uart@d4017000 {
+				compatible = "mrvl,mmp-uart", "mrvl,pxa-uart";
+				reg = <0xd4017000 0x1000>;
+				interrupts = <27>;
+				status = "disabled";
+			};
+
+			uart2: uart@d4018000 {
+				compatible = "mrvl,mmp-uart", "mrvl,pxa-uart";
+				reg = <0xd4018000 0x1000>;
+				interrupts = <28>;
+				status = "disabled";
+			};
+
+			uart3: uart@d4026000 {
+				compatible = "mrvl,mmp-uart", "mrvl,pxa-uart";
+				reg = <0xd4026000 0x1000>;
+				interrupts = <29>;
+				status = "disabled";
+			};
+
+			gpio: gpio@d4019000 {
+				compatible = "mrvl,mmp-gpio", "mrvl,pxa-gpio";
+				reg = <0xd4019000 0x1000>;
+				interrupts = <49>;
+				interrupt-names = "gpio_mux";
+				gpio-controller;
+				#gpio-cells = <1>;
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+
+			twsi1: i2c@d4011000 {
+				compatible = "mrvl,mmp-twsi", "mrvl,pxa-i2c";
+				reg = <0xd4011000 0x1000>;
+				interrupts = <7>;
+				mrvl,i2c-fast-mode;
+				status = "disabled";
+			};
+
+			twsi2: i2c@d4025000 {
+				compatible = "mrvl,mmp-twsi", "mrvl,pxa-i2c";
+				reg = <0xd4025000 0x1000>;
+				interrupts = <58>;
+				status = "disabled";
+			};
+
+			rtc: rtc@d4010000 {
+				compatible = "mrvl,mmp-rtc";
+				reg = <0xd4010000 0x1000>;
+				interrupts = <5 6>;
+				interrupt-names = "rtc 1Hz", "rtc alarm";
+				status = "disabled";
+			};
+		};
+	};
+};
-- 
cgit v1.2.3