Merge tag 'drm-intel-fixes-2013-10-21' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes

Just an lvds clock gating fix and a pte clearing hack for hsw to avoid
memory corruption when hibernating - something doesn't seem to switch off
properly, we're still investigating.

* tag 'drm-intel-fixes-2013-10-21' of git://people.freedesktop.org/~danvet/drm-intel: (96 commits)
  drm/i915: Disable GGTT PTEs on GEN6+ suspend
  drm/i915: Make PTE valid encoding optional
  drm/i915: disable LVDS clock gating on CPT v2

6 files changed, 55 insertions, 4 deletions

diff --git a/include/dt-bindings/pinctrl/omap.h b/include/dt-bindings/pinctrl/omap.h
index edbd250809cb..bed35e36fd27 100644
--- a/include/dt-bindings/pinctrl/omap.h
+++ b/include/dt-bindings/pinctrl/omap.h
@@ -23,7 +23,7 @@
 #define PULL_UP                 (1 << 4)
 #define ALTELECTRICALSEL        (1 << 5)
 
-/* 34xx specific mux bit defines */
+/* omap3/4/5 specific mux bit defines */
 #define INPUT_EN                (1 << 8)
 #define OFF_EN                  (1 << 9)
 #define OFFOUT_EN               (1 << 10)
@@ -31,8 +31,6 @@
 #define OFF_PULL_EN             (1 << 12)
 #define OFF_PULL_UP             (1 << 13)
 #define WAKEUP_EN               (1 << 14)
-
-/* 44xx specific mux bit defines */
 #define WAKEUP_EVENT            (1 << 15)
 
 /* Active pin states */
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 842de225055f..ded429966c1f 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -65,6 +65,21 @@
 #define __visible __attribute__((externally_visible))
 #endif
 
+/*
+ * GCC 'asm goto' miscompiles certain code sequences:
+ *
+ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+ *
+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
+ * Fixed in GCC 4.8.2 and later versions.
+ *
+ * (asm goto is automatically volatile - the naming reflects this.)
+ */
+#if GCC_VERSION <= 40801
+# define asm_volatile_goto(x...)        do { asm goto(x); asm (""); } while (0)
+#else
+# define asm_volatile_goto(x...)        do { asm goto(x); } while (0)
+#endif
 
 #ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
 #if GCC_VERSION >= 40400
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index 09c2300ddb37..cb358355ef43 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -45,6 +45,7 @@
 #define MAPPER_CTRL_MINOR       236
 #define LOOP_CTRL_MINOR         237
 #define VHOST_NET_MINOR         238
+#define UHID_MINOR              239
 #define MISC_DYNAMIC_MINOR      255
 
 struct device;
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 866e85c5eb94..c8ba627c1d60 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -294,9 +294,31 @@ struct ring_buffer;
  */
 struct perf_event {
 #ifdef CONFIG_PERF_EVENTS
-        struct list_head                group_entry;
+        /*
+         * entry onto perf_event_context::event_list;
+         *   modifications require ctx->lock
+         *   RCU safe iterations.
+         */
         struct list_head                event_entry;
+
+        /*
+         * XXX: group_entry and sibling_list should be mutually exclusive;
+         * either you're a sibling on a group, or you're the group leader.
+         * Rework the code to always use the same list element.
+         *
+         * Locked for modification by both ctx->mutex and ctx->lock; holding
+         * either sufficies for read.
+         */
+        struct list_head                group_entry;
         struct list_head                sibling_list;
+
+        /*
+         * We need storage to track the entries in perf_pmu_migrate_context; we
+         * cannot use the event_entry because of RCU and we want to keep the
+         * group in tact which avoids us using the other two entries.
+         */
+        struct list_head                migrate_entry;
+
         struct hlist_node               hlist_entry;
         int                             nr_siblings;
         int                             group_flags;
diff --git a/include/linux/random.h b/include/linux/random.h
index 3b9377d6b7a5..6312dd9ba449 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -17,6 +17,7 @@ extern void add_interrupt_randomness(int irq, int irq_flags);
 extern void get_random_bytes(void *buf, int nbytes);
 extern void get_random_bytes_arch(void *buf, int nbytes);
 void generate_random_uuid(unsigned char uuid_out[16]);
+extern int random_int_secret_init(void);
 
 #ifndef MODULE
 extern const struct file_operations random_fops, urandom_fops;
diff --git a/include/linux/timex.h b/include/linux/timex.h
index dd3edd7dfc94..9d3f1a5b6178 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -64,6 +64,20 @@
 
 #include <asm/timex.h>
 
+#ifndef random_get_entropy
+/*
+ * The random_get_entropy() function is used by the /dev/random driver
+ * in order to extract entropy via the relative unpredictability of
+ * when an interrupt takes places versus a high speed, fine-grained
+ * timing source or cycle counter.  Since it will be occurred on every
+ * single interrupt, it must have a very low cost/overhead.
+ *
+ * By default we use get_cycles() for this purpose, but individual
+ * architectures may override this in their asm/timex.h header file.
+ */
+#define random_get_entropy()    get_cycles()
+#endif
+
 /*
  * SHIFT_PLL is used as a dampening factor to define how much we
  * adjust the frequency correction for a given offset in PLL mode.