linux-(rt-)2.6.24: Fix clock resolution to nanosecond.

4 files changed, 100 insertions, 4 deletions

diff --git a/packages/linux/linux-2.6.24/powerpc-clockres.patch b/packages/linux/linux-2.6.24/powerpc-clockres.patch
new file mode 100644
index 0000000000..a0cf05b44e
--- /dev/null
+++ b/packages/linux/linux-2.6.24/powerpc-clockres.patch
@@ -0,0 +1,47 @@
+Index: linux-2.6.24/arch/powerpc/kernel/asm-offsets.c
+===================================================================
+--- linux-2.6.24.orig/arch/powerpc/kernel/asm-offsets.c	2008-02-16 13:54:09.000000000 +0100
++++ linux-2.6.24/arch/powerpc/kernel/asm-offsets.c	2008-02-16 13:54:30.000000000 +0100
+@@ -312,7 +312,7 @@
+ 	DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
+ 	DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+ 	DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
+-	DEFINE(CLOCK_REALTIME_RES, TICK_NSEC);
++	DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
+ 
+ #ifdef CONFIG_BUG
+ 	DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry));
+Index: linux-2.6.24/include/linux/hrtimer.h
+===================================================================
+--- linux-2.6.24.orig/include/linux/hrtimer.h	2008-02-16 13:54:09.000000000 +0100
++++ linux-2.6.24/include/linux/hrtimer.h	2008-02-16 13:54:33.000000000 +0100
+@@ -223,11 +223,13 @@
+  * idea of the (in)accuracy of timers. Timer values are rounded up to
+  * this resolution values.
+  */
+-# define KTIME_HIGH_RES		(ktime_t) { .tv64 = 1 }
++# define HIGH_RES_NSEC         1
++# define KTIME_HIGH_RES                (ktime_t) { .tv64 = HIGH_RES_NSEC }
++# define MONOTONIC_RES_NSEC    HIGH_RES_NSEC
+ # define KTIME_MONOTONIC_RES	KTIME_HIGH_RES
+ 
+ #else
+-
++# define MONOTONIC_RES_NSEC    LOW_RES_NSEC
+ # define KTIME_MONOTONIC_RES	KTIME_LOW_RES
+ 
+ /*
+Index: linux-2.6.24/include/linux/ktime.h
+===================================================================
+--- linux-2.6.24.orig/include/linux/ktime.h	2008-02-16 13:54:09.000000000 +0100
++++ linux-2.6.24/include/linux/ktime.h	2008-02-16 13:54:36.000000000 +0100
+@@ -316,7 +316,8 @@
+  * idea of the (in)accuracy of timers. Timer values are rounded up to
+  * this resolution values.
+  */
+-#define KTIME_LOW_RES		(ktime_t){ .tv64 = TICK_NSEC }
++#define LOW_RES_NSEC           TICK_NSEC
++#define KTIME_LOW_RES          (ktime_t){ .tv64 = LOW_RES_NSEC }
+ 
+ /* Get the monotonic time in timespec format: */
+ extern void ktime_get_ts(struct timespec *ts);
diff --git a/packages/linux/linux-rt-2.6.24/powerpc-clockres.patch b/packages/linux/linux-rt-2.6.24/powerpc-clockres.patch
new file mode 100644
index 0000000000..a0cf05b44e
--- /dev/null
+++ b/packages/linux/linux-rt-2.6.24/powerpc-clockres.patch
@@ -0,0 +1,47 @@
+Index: linux-2.6.24/arch/powerpc/kernel/asm-offsets.c
+===================================================================
+--- linux-2.6.24.orig/arch/powerpc/kernel/asm-offsets.c	2008-02-16 13:54:09.000000000 +0100
++++ linux-2.6.24/arch/powerpc/kernel/asm-offsets.c	2008-02-16 13:54:30.000000000 +0100
+@@ -312,7 +312,7 @@
+ 	DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
+ 	DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+ 	DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
+-	DEFINE(CLOCK_REALTIME_RES, TICK_NSEC);
++	DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
+ 
+ #ifdef CONFIG_BUG
+ 	DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry));
+Index: linux-2.6.24/include/linux/hrtimer.h
+===================================================================
+--- linux-2.6.24.orig/include/linux/hrtimer.h	2008-02-16 13:54:09.000000000 +0100
++++ linux-2.6.24/include/linux/hrtimer.h	2008-02-16 13:54:33.000000000 +0100
+@@ -223,11 +223,13 @@
+  * idea of the (in)accuracy of timers. Timer values are rounded up to
+  * this resolution values.
+  */
+-# define KTIME_HIGH_RES		(ktime_t) { .tv64 = 1 }
++# define HIGH_RES_NSEC         1
++# define KTIME_HIGH_RES                (ktime_t) { .tv64 = HIGH_RES_NSEC }
++# define MONOTONIC_RES_NSEC    HIGH_RES_NSEC
+ # define KTIME_MONOTONIC_RES	KTIME_HIGH_RES
+ 
+ #else
+-
++# define MONOTONIC_RES_NSEC    LOW_RES_NSEC
+ # define KTIME_MONOTONIC_RES	KTIME_LOW_RES
+ 
+ /*
+Index: linux-2.6.24/include/linux/ktime.h
+===================================================================
+--- linux-2.6.24.orig/include/linux/ktime.h	2008-02-16 13:54:09.000000000 +0100
++++ linux-2.6.24/include/linux/ktime.h	2008-02-16 13:54:36.000000000 +0100
+@@ -316,7 +316,8 @@
+  * idea of the (in)accuracy of timers. Timer values are rounded up to
+  * this resolution values.
+  */
+-#define KTIME_LOW_RES		(ktime_t){ .tv64 = TICK_NSEC }
++#define LOW_RES_NSEC           TICK_NSEC
++#define KTIME_LOW_RES          (ktime_t){ .tv64 = LOW_RES_NSEC }
+ 
+ /* Get the monotonic time in timespec format: */
+ extern void ktime_get_ts(struct timespec *ts);
diff --git a/packages/linux/linux-rt_2.6.24.bb b/packages/linux/linux-rt_2.6.24.bb
index 9869757391..b9f374099e 100644
--- a/packages/linux/linux-rt_2.6.24.bb
+++ b/packages/linux/linux-rt_2.6.24.bb
@@ -6,11 +6,12 @@ DEFAULT_PREFERENCE_mpc8313e-rdb = "1"
 
 DEPENDS_append_mpc8313e-rdb = " dtc-native"
 
-PR = "r1"
+PR = "r2"
 
 SRC_URI = "${KERNELORG_MIRROR}/pub/linux/kernel/v2.6/linux-2.6.24.tar.bz2 \
            ${KERNELORG_MIRROR}/pub/linux/kernel/projects/rt/patch-2.6.24-rt1.bz2;patch=1 \
            http://kamikaze.waninkoko.info/patches/2.6.24/kamikaze1/broken-out/squashfs-lzma-2.6.24.patch;patch=1 \
+           file://powerpc-clockres.patch;patch=1 \
            file://defconfig"
 
 S = "${WORKDIR}/linux-2.6.24"
diff --git a/packages/linux/linux_2.6.24.bb b/packages/linux/linux_2.6.24.bb
index 18ba900fce..afb45159c4 100644
--- a/packages/linux/linux_2.6.24.bb
+++ b/packages/linux/linux_2.6.24.bb
@@ -7,11 +7,12 @@ DEFAULT_PREFERENCE_mpc8313e-rdb = "1"
 
 DEPENDS_append_mpc8313e-rdb = " dtc-native"
 
-PR = "r3"
+PR = "r5"
 
 SRC_URI = "${KERNELORG_MIRROR}/pub/linux/kernel/v2.6/linux-2.6.24.tar.bz2 \
-           file://defconfig \
-	   "
+           http://kamikaze.waninkoko.info/patches/2.6.24/kamikaze1/broken-out/squashfs-lzma-2.6.24.patch;patch=1 \
+           file://powerpc-clockres.patch;patch=1 \
+           file://defconfig"
 
 # Real-time preemption. This is experimental and requires a different defconfig.
 #SRC_URI += " http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.24-rt1.bz2;patch=1"