---

yaml --- r: 377462 b: refs/heads/master c: 63edbce h: refs/heads/master v: v3
git-mirror · Jun 29, 2013 · 674907f · 674907f
1 parent 600bcae
commit 674907f
Show file tree

Hide file tree

Showing 275 changed files with 6,769 additions and 1,192 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 605c912bb843c024b1ed173dc427cd5c08e5d54d
+refs/heads/master: 63edbce160c6d68c806e58db026b5881c6010e04
diff --git a/trunk/Documentation/DocBook/media/v4l/dev-codec.xml b/trunk/Documentation/DocBook/media/v4l/dev-codec.xml
@@ -1,18 +1,27 @@
   <title>Codec Interface</title>
 
-  <note>
-    <title>Suspended</title>
+  <para>A V4L2 codec can compress, decompress, transform, or otherwise
+convert video data from one format into another format, in memory. Typically
+such devices are memory-to-memory devices (i.e. devices with the
+<constant>V4L2_CAP_VIDEO_M2M</constant> or <constant>V4L2_CAP_VIDEO_M2M_MPLANE</constant>
+capability set).
+</para>
 
-    <para>This interface has been be suspended from the V4L2 API
-implemented in Linux 2.6 until we have more experience with codec
-device interfaces.</para>
-  </note>
+  <para>A memory-to-memory video node acts just like a normal video node, but it
+supports both output (sending frames from memory to the codec hardware) and
+capture (receiving the processed frames from the codec hardware into memory)
+stream I/O. An application will have to setup the stream
+I/O for both sides and finally call &VIDIOC-STREAMON; for both capture and output
+to start the codec.</para>
 
-  <para>A V4L2 codec can compress, decompress, transform, or otherwise
-convert video data from one format into another format, in memory.
-Applications send data to be converted to the driver through a
-&func-write; call, and receive the converted data through a
-&func-read; call. For efficiency a driver may also support streaming
-I/O.</para>
+  <para>Video compression codecs use the MPEG controls to setup their codec parameters
+(note that the MPEG controls actually support many more codecs than just MPEG).
+See <xref linkend="mpeg-controls"></xref>.</para>
 
-  <para>[to do]</para>
+  <para>Memory-to-memory devices can often be used as a shared resource: you can
+open the video node multiple times, each application setting up their own codec properties
+that are local to the file handle, and each can use it independently from the others.
+The driver will arbitrate access to the codec and reprogram it whenever another file
+handler gets access. This is different from the usual video node behavior where the video properties
+are global to the device (i.e. changing something through one file handle is visible
+through another file handle).</para>
diff --git a/trunk/Documentation/DocBook/media/v4l/v4l2.xml b/trunk/Documentation/DocBook/media/v4l/v4l2.xml
@@ -493,7 +493,7 @@ and discussions on the V4L mailing list.</revremark>
 </partinfo>
 
 <title>Video for Linux Two API Specification</title>
- <subtitle>Revision 3.9</subtitle>
+ <subtitle>Revision 3.10</subtitle>
 
   <chapter id="common">
     &sub-common;

diff --git a/trunk/Documentation/devicetree/bindings/media/exynos-fimc-lite.txt b/trunk/Documentation/devicetree/bindings/media/exynos-fimc-lite.txt
@@ -2,7 +2,7 @@ Exynos4x12/Exynos5 SoC series camera host interface (FIMC-LITE)
 
 Required properties:
 
-- compatible	: should be "samsung,exynos4212-fimc" for Exynos4212 and
+- compatible	: should be "samsung,exynos4212-fimc-lite" for Exynos4212 and
 		  Exynos4412 SoCs;
 - reg		: physical base address and size of the device memory mapped
 		  registers;

diff --git a/trunk/Documentation/networking/ip-sysctl.txt b/trunk/Documentation/networking/ip-sysctl.txt
@@ -420,10 +420,10 @@ tcp_synack_retries - INTEGER
 	for a passive TCP connection will happen after 63seconds.
 
 tcp_syncookies - BOOLEAN
-	Only valid when the kernel was compiled with CONFIG_SYNCOOKIES
+	Only valid when the kernel was compiled with CONFIG_SYN_COOKIES
 	Send out syncookies when the syn backlog queue of a socket
 	overflows. This is to prevent against the common 'SYN flood attack'
-	Default: FALSE
+	Default: 1
 
 	Note, that syncookies is fallback facility.
 	It MUST NOT be used to help highly loaded servers to stand

diff --git a/trunk/Documentation/sound/alsa/HD-Audio-Models.txt b/trunk/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -29,6 +29,8 @@ ALC269/270/275/276/280/282
   alc271-dmic	Enable ALC271X digital mic workaround
   inv-dmic	Inverted internal mic workaround
   lenovo-dock   Enables docking station I/O for some Lenovos
+  dell-headset-multi	Headset jack, which can also be used as mic-in
+  dell-headset-dock	Headset jack (without mic-in), and also dock I/O
 
 ALC662/663/272
 ==============
@@ -42,6 +44,7 @@ ALC662/663/272
   asus-mode7	ASUS
   asus-mode8	ASUS
   inv-dmic	Inverted internal mic workaround
+  dell-headset-multi	Headset jack, which can also be used as mic-in
 
 ALC680
 ======

diff --git a/trunk/Makefile b/trunk/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 10
 SUBLEVEL = 0
-EXTRAVERSION = -rc6
+EXTRAVERSION = -rc7
 NAME = Unicycling Gorilla
 
 # *DOCUMENTATION*

diff --git a/trunk/arch/arm/Kconfig b/trunk/arch/arm/Kconfig
@@ -1087,6 +1087,20 @@ if !MMU
 source "arch/arm/Kconfig-nommu"
 endif
 
+config PJ4B_ERRATA_4742
+	bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
+	depends on CPU_PJ4B && MACH_ARMADA_370
+	default y
+	help
+	  When coming out of either a Wait for Interrupt (WFI) or a Wait for
+	  Event (WFE) IDLE states, a specific timing sensitivity exists between
+	  the retiring WFI/WFE instructions and the newly issued subsequent
+	  instructions.  This sensitivity can result in a CPU hang scenario.
+	  Workaround:
+	  The software must insert either a Data Synchronization Barrier (DSB)
+	  or Data Memory Barrier (DMB) command immediately after the WFI/WFE
+	  instruction
+
 config ARM_ERRATA_326103
 	bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
 	depends on CPU_V6
@@ -1189,6 +1203,16 @@ config PL310_ERRATA_588369
 	   is not correctly implemented in PL310 as clean lines are not
 	   invalidated as a result of these operations.
 
+config ARM_ERRATA_643719
+	bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
+	depends on CPU_V7 && SMP
+	help
+	  This option enables the workaround for the 643719 Cortex-A9 (prior to
+	  r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
+	  register returns zero when it should return one. The workaround
+	  corrects this value, ensuring cache maintenance operations which use
+	  it behave as intended and avoiding data corruption.
+
 config ARM_ERRATA_720789
 	bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
 	depends on CPU_V7
@@ -2006,7 +2030,7 @@ config XIP_PHYS_ADDR
 
 config KEXEC
 	bool "Kexec system call (EXPERIMENTAL)"
-	depends on (!SMP || HOTPLUG_CPU)
+	depends on (!SMP || PM_SLEEP_SMP)
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot

diff --git a/trunk/arch/arm/boot/compressed/Makefile b/trunk/arch/arm/boot/compressed/Makefile
@@ -116,7 +116,8 @@ targets       := vmlinux vmlinux.lds \
 
 # Make sure files are removed during clean
 extra-y       += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern \
-		 lib1funcs.S ashldi3.S $(libfdt) $(libfdt_hdrs)
+		 lib1funcs.S ashldi3.S $(libfdt) $(libfdt_hdrs) \
+		 hyp-stub.S
 
 ifeq ($(CONFIG_FUNCTION_TRACER),y)
 ORIG_CFLAGS := $(KBUILD_CFLAGS)

diff --git a/trunk/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/trunk/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
@@ -763,7 +763,7 @@
 		};
 	};
 
-	pinctrl@03680000 {
+	pinctrl@03860000 {
 		gpz: gpz {
 			gpio-controller;
 			#gpio-cells = <2>;

diff --git a/trunk/arch/arm/boot/dts/exynos5250.dtsi b/trunk/arch/arm/boot/dts/exynos5250.dtsi
@@ -161,9 +161,9 @@
 		interrupts = <0 50 0>;
 	};
 
-	pinctrl_3: pinctrl@03680000 {
+	pinctrl_3: pinctrl@03860000 {
 		compatible = "samsung,exynos5250-pinctrl";
-		reg = <0x0368000 0x1000>;
+		reg = <0x03860000 0x1000>;
 		interrupts = <0 47 0>;
 	};
 

diff --git a/trunk/arch/arm/include/asm/cacheflush.h b/trunk/arch/arm/include/asm/cacheflush.h
@@ -320,9 +320,7 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
 }
 
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
-static inline void flush_kernel_dcache_page(struct page *page)
-{
-}
+extern void flush_kernel_dcache_page(struct page *);
 
 #define flush_dcache_mmap_lock(mapping) \
 	spin_lock_irq(&(mapping)->tree_lock)

diff --git a/trunk/arch/arm/include/asm/cputype.h b/trunk/arch/arm/include/asm/cputype.h
@@ -32,6 +32,8 @@
 
 #define MPIDR_HWID_BITMASK 0xFFFFFF
 
+#define MPIDR_INVALID (~MPIDR_HWID_BITMASK)
+
 #define MPIDR_LEVEL_BITS 8
 #define MPIDR_LEVEL_MASK ((1 << MPIDR_LEVEL_BITS) - 1)
 

diff --git a/trunk/arch/arm/include/asm/glue-proc.h b/trunk/arch/arm/include/asm/glue-proc.h
@@ -230,6 +230,15 @@
 # endif
 #endif
 
+#ifdef CONFIG_CPU_PJ4B
+# ifdef CPU_NAME
+#  undef  MULTI_CPU
+#  define MULTI_CPU
+# else
+#  define CPU_NAME cpu_pj4b
+# endif
+#endif
+
 #ifndef MULTI_CPU
 #define cpu_proc_init			__glue(CPU_NAME,_proc_init)
 #define cpu_proc_fin			__glue(CPU_NAME,_proc_fin)

diff --git a/trunk/arch/arm/include/asm/smp_plat.h b/trunk/arch/arm/include/asm/smp_plat.h
@@ -49,7 +49,7 @@ static inline int cache_ops_need_broadcast(void)
 /*
  * Logical CPU mapping.
  */
-extern int __cpu_logical_map[];
+extern u32 __cpu_logical_map[];
 #define cpu_logical_map(cpu)	__cpu_logical_map[cpu]
 /*
  * Retrieve logical cpu index corresponding to a given MPIDR[23:0]

diff --git a/trunk/arch/arm/kernel/devtree.c b/trunk/arch/arm/kernel/devtree.c
@@ -82,7 +82,7 @@ void __init arm_dt_init_cpu_maps(void)
 	u32 i, j, cpuidx = 1;
 	u32 mpidr = is_smp() ? read_cpuid_mpidr() & MPIDR_HWID_BITMASK : 0;
 
-	u32 tmp_map[NR_CPUS] = { [0 ... NR_CPUS-1] = UINT_MAX };
+	u32 tmp_map[NR_CPUS] = { [0 ... NR_CPUS-1] = MPIDR_INVALID };
 	bool bootcpu_valid = false;
 	cpus = of_find_node_by_path("/cpus");
 
@@ -92,6 +92,9 @@ void __init arm_dt_init_cpu_maps(void)
 	for_each_child_of_node(cpus, cpu) {
 		u32 hwid;
 
+		if (of_node_cmp(cpu->type, "cpu"))
+			continue;
+
 		pr_debug(" * %s...\n", cpu->full_name);
 		/*
 		 * A device tree containing CPU nodes with missing "reg"

diff --git a/trunk/arch/arm/kernel/machine_kexec.c b/trunk/arch/arm/kernel/machine_kexec.c
@@ -134,6 +134,10 @@ void machine_kexec(struct kimage *image)
 	unsigned long reboot_code_buffer_phys;
 	void *reboot_code_buffer;
 
+	if (num_online_cpus() > 1) {
+		pr_err("kexec: error: multiple CPUs still online\n");
+		return;
+	}
 
 	page_list = image->head & PAGE_MASK;
 

diff --git a/trunk/arch/arm/kernel/process.c b/trunk/arch/arm/kernel/process.c
@@ -184,30 +184,61 @@ int __init reboot_setup(char *str)
 
 __setup("reboot=", reboot_setup);
 
+/*
+ * Called by kexec, immediately prior to machine_kexec().
+ *
+ * This must completely disable all secondary CPUs; simply causing those CPUs
+ * to execute e.g. a RAM-based pin loop is not sufficient. This allows the
+ * kexec'd kernel to use any and all RAM as it sees fit, without having to
+ * avoid any code or data used by any SW CPU pin loop. The CPU hotplug
+ * functionality embodied in disable_nonboot_cpus() to achieve this.
+ */
 void machine_shutdown(void)
 {
-#ifdef CONFIG_SMP
-	smp_send_stop();
-#endif
+	disable_nonboot_cpus();
 }
 
+/*
+ * Halting simply requires that the secondary CPUs stop performing any
+ * activity (executing tasks, handling interrupts). smp_send_stop()
+ * achieves this.
+ */
 void machine_halt(void)
 {
-	machine_shutdown();
+	smp_send_stop();
+
 	local_irq_disable();
 	while (1);
 }
 
+/*
+ * Power-off simply requires that the secondary CPUs stop performing any
+ * activity (executing tasks, handling interrupts). smp_send_stop()
+ * achieves this. When the system power is turned off, it will take all CPUs
+ * with it.
+ */
 void machine_power_off(void)
 {
-	machine_shutdown();
+	smp_send_stop();
+
 	if (pm_power_off)
 		pm_power_off();
 }
 
+/*
+ * Restart requires that the secondary CPUs stop performing any activity
+ * while the primary CPU resets the system. Systems with a single CPU can
+ * use soft_restart() as their machine descriptor's .restart hook, since that
+ * will cause the only available CPU to reset. Systems with multiple CPUs must
+ * provide a HW restart implementation, to ensure that all CPUs reset at once.
+ * This is required so that any code running after reset on the primary CPU
+ * doesn't have to co-ordinate with other CPUs to ensure they aren't still
+ * executing pre-reset code, and using RAM that the primary CPU's code wishes
+ * to use. Implementing such co-ordination would be essentially impossible.
+ */
 void machine_restart(char *cmd)
 {
-	machine_shutdown();
+	smp_send_stop();
 
 	arm_pm_restart(reboot_mode, cmd);
 

diff --git a/trunk/arch/arm/kernel/setup.c b/trunk/arch/arm/kernel/setup.c
@@ -444,7 +444,7 @@ void notrace cpu_init(void)
 	    : "r14");
 }
 
-int __cpu_logical_map[NR_CPUS];
+u32 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = MPIDR_INVALID };
 
 void __init smp_setup_processor_id(void)
 {

diff --git a/trunk/arch/arm/kernel/smp.c b/trunk/arch/arm/kernel/smp.c
@@ -651,17 +651,6 @@ void smp_send_reschedule(int cpu)
 	smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
-static void smp_kill_cpus(cpumask_t *mask)
-{
-	unsigned int cpu;
-	for_each_cpu(cpu, mask)
-		platform_cpu_kill(cpu);
-}
-#else
-static void smp_kill_cpus(cpumask_t *mask) { }
-#endif
-
 void smp_send_stop(void)
 {
 	unsigned long timeout;
@@ -679,8 +668,6 @@ void smp_send_stop(void)
 
 	if (num_online_cpus() > 1)
 		pr_warning("SMP: failed to stop secondary CPUs\n");
-
-	smp_kill_cpus(&mask);
 }
 
 /*

diff --git a/trunk/arch/arm/mm/cache-v7.S b/trunk/arch/arm/mm/cache-v7.S
@@ -92,6 +92,14 @@ ENTRY(v7_flush_dcache_louis)
 	mrc	p15, 1, r0, c0, c0, 1		@ read clidr, r0 = clidr
 	ALT_SMP(ands	r3, r0, #(7 << 21))	@ extract LoUIS from clidr
 	ALT_UP(ands	r3, r0, #(7 << 27))	@ extract LoUU from clidr
+#ifdef CONFIG_ARM_ERRATA_643719
+	ALT_SMP(mrceq	p15, 0, r2, c0, c0, 0)	@ read main ID register
+	ALT_UP(moveq	pc, lr)			@ LoUU is zero, so nothing to do
+	ldreq	r1, =0x410fc090                 @ ID of ARM Cortex A9 r0p?
+	biceq	r2, r2, #0x0000000f             @ clear minor revision number
+	teqeq	r2, r1                          @ test for errata affected core and if so...
+	orreqs	r3, #(1 << 21)			@   fix LoUIS value (and set flags state to 'ne')
+#endif
 	ALT_SMP(mov	r3, r3, lsr #20)	@ r3 = LoUIS * 2
 	ALT_UP(mov	r3, r3, lsr #26)	@ r3 = LoUU * 2
 	moveq	pc, lr				@ return if level == 0