linux-omap-psp 2.6.32: update to latest PSP git, rediff patches

1 files changed, 0 insertions, 211 deletions

diff --git a/recipes/linux/linux-omap-psp-2.6.32/0032-ARM-VFP-preserve-the-HW-context-when-calling-signal-.patch b/recipes/linux/linux-omap-psp-2.6.32/0032-ARM-VFP-preserve-the-HW-context-when-calling-signal-.patch
deleted file mode 100644
index 7aaf626397..0000000000
--- a/recipes/linux/linux-omap-psp-2.6.32/0032-ARM-VFP-preserve-the-HW-context-when-calling-signal-.patch
+++ /dev/null
@@ -1,211 +0,0 @@
-From 11cceffa4e4c2e6971fde3ec8a978d267d5e9805 Mon Sep 17 00:00:00 2001
-From: Imre Deak <imre.deak@nokia.com>
-Date: Thu, 4 Feb 2010 21:38:30 +0200
-Subject: [PATCH 32/42] ARM: VFP: preserve the HW context when calling signal handlers
-
-ARM: VFP: preserve the HW context when calling signal handlers
-
-Signal handlers can use floating point, so prevent them to corrupt
-the main thread's VFP context. So far there were two signal stack
-frame formats defined based on the VFP implementation, but the user
-struct used for ptrace covers all posibilities, so use it for the
-signal stack too. This patch extends the user struct and leaves
-its magic number the same, in the hope that user space code does
-not depend on its size and can parse the original regs w/o
-problems.
-
-Support to save / restore the exception registers was added by
-Will Deacon.
-
-Signed-off-by: Imre Deak <imre.deak@nokia.com>
-Signed-off-by: Will Deacon <will.deacon@arm.com>
-Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
----
- arch/arm/include/asm/ucontext.h |   19 +++-----
- arch/arm/include/asm/user.h     |    3 +
- arch/arm/kernel/signal.c        |   91 +++++++++++++++++++++++++++++++++++++--
- 3 files changed, 97 insertions(+), 16 deletions(-)
-
-diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h
-index bf65e9f..1c3236b 100644
---- a/arch/arm/include/asm/ucontext.h
-+++ b/arch/arm/include/asm/ucontext.h
-@@ -59,23 +59,18 @@ struct iwmmxt_sigframe {
- #endif /* CONFIG_IWMMXT */
- 
- #ifdef CONFIG_VFP
--#if __LINUX_ARM_ARCH__ < 6
--/* For ARM pre-v6, we use fstmiax and fldmiax.  This adds one extra
-- * word after the registers, and a word of padding at the end for
-- * alignment.  */
- #define VFP_MAGIC		0x56465001
--#define VFP_STORAGE_SIZE	152
--#else
--#define VFP_MAGIC		0x56465002
--#define VFP_STORAGE_SIZE	144
--#endif
- 
- struct vfp_sigframe
- {
- 	unsigned long		magic;
- 	unsigned long		size;
--	union vfp_state		storage;
--};
-+	struct user_vfp		ufp;
-+} __attribute__((__aligned__(8)));
-+
-+/* 8 byte for magic and size, 272 byte for ufp */
-+#define VFP_STORAGE_SIZE	sizeof(struct vfp_sigframe)
-+
- #endif /* CONFIG_VFP */
- 
- /*
-@@ -91,7 +86,7 @@ struct aux_sigframe {
- #ifdef CONFIG_IWMMXT
- 	struct iwmmxt_sigframe	iwmmxt;
- #endif
--#if 0 && defined CONFIG_VFP /* Not yet saved.  */
-+#ifdef CONFIG_VFP
- 	struct vfp_sigframe	vfp;
- #endif
- 	/* Something that isn't a valid magic number for any coprocessor.  */
-diff --git a/arch/arm/include/asm/user.h b/arch/arm/include/asm/user.h
-index df95e05..ea7e44d 100644
---- a/arch/arm/include/asm/user.h
-+++ b/arch/arm/include/asm/user.h
-@@ -88,6 +88,9 @@ struct user{
- struct user_vfp {
- 	unsigned long long fpregs[32];
- 	unsigned long fpscr;
-+	unsigned long fpexc;
-+	unsigned long fpinst;
-+	unsigned long fpinst2;
- };
- 
- #endif /* _ARM_USER_H */
-diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
-index e7714f3..6a36851 100644
---- a/arch/arm/kernel/signal.c
-+++ b/arch/arm/kernel/signal.c
-@@ -18,6 +18,7 @@
- #include <asm/cacheflush.h>
- #include <asm/ucontext.h>
- #include <asm/unistd.h>
-+#include <asm/vfp.h>
- 
- #include "ptrace.h"
- #include "signal.h"
-@@ -175,6 +176,88 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
- 
- #endif
- 
-+#ifdef CONFIG_VFP
-+
-+static int preserve_vfp_context(struct vfp_sigframe __user *frame)
-+{
-+	struct thread_info *thread = current_thread_info();
-+	struct vfp_hard_struct *h = &thread->vfpstate.hard;
-+	const unsigned long magic = VFP_MAGIC;
-+	const unsigned long size = VFP_STORAGE_SIZE;
-+	int err = 0;
-+
-+	vfp_sync_state(thread);
-+	__put_user_error(magic, &frame->magic, err);
-+	__put_user_error(size, &frame->size, err);
-+
-+	/*
-+	 * Copy the floating point registers. There can be unused
-+	 * registers see asm/hwcap.h for details.
-+	 */
-+	err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs,
-+			      sizeof(h->fpregs));
-+	/*
-+	 * Copy the status and control register.
-+	 */
-+	__put_user_error(h->fpscr, &frame->ufp.fpscr, err);
-+
-+	/*
-+	 * Copy the exception registers.
-+	 */
-+	__put_user_error(h->fpexc, &frame->ufp.fpexc, err);
-+	__put_user_error(h->fpinst, &frame->ufp.fpinst, err);
-+	__put_user_error(h->fpinst2, &frame->ufp.fpinst2, err);
-+
-+	return err ? -EFAULT : 0;
-+}
-+
-+static int restore_vfp_context(struct vfp_sigframe __user *frame)
-+{
-+	struct thread_info *thread = current_thread_info();
-+	struct vfp_hard_struct *h = &thread->vfpstate.hard;
-+	unsigned long magic;
-+	unsigned long size;
-+	unsigned long fpexc;
-+	int err = 0;
-+
-+	vfp_sync_state(thread);
-+	__get_user_error(magic, &frame->magic, err);
-+	__get_user_error(size, &frame->size, err);
-+
-+	if (err)
-+		return -EFAULT;
-+	if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
-+		return -EINVAL;
-+
-+	/*
-+	 * Copy the floating point registers. There can be unused
-+	 * registers see asm/hwcap.h for details.
-+	 */
-+	err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs,
-+				sizeof(h->fpregs));
-+	/*
-+	 * Copy the status and control register.
-+	 */
-+	__get_user_error(h->fpscr, &frame->ufp.fpscr, err);
-+
-+	/*
-+	 * Sanitise and restore the exception registers.
-+	 */
-+	__get_user_error(fpexc, &frame->ufp.fpexc, err);
-+	/* Ensure the VFP is enabled. */
-+	fpexc |= FPEXC_EN;
-+	/* Ensure FPINST2 is invalid and the exception flag is cleared. */
-+	fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
-+	h->fpexc = fpexc;
-+
-+	__get_user_error(h->fpinst, &frame->ufp.fpinst, err);
-+	__get_user_error(h->fpinst2, &frame->ufp.fpinst2, err);
-+
-+	return err ? -EFAULT : 0;
-+}
-+
-+#endif
-+
- /*
-  * Do a signal return; undo the signal stack.  These are aligned to 64-bit.
-  */
-@@ -233,8 +316,8 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
- 		err |= restore_iwmmxt_context(&aux->iwmmxt);
- #endif
- #ifdef CONFIG_VFP
--//	if (err == 0)
--//		err |= vfp_restore_state(&sf->aux.vfp);
-+	if (err == 0)
-+		err |= restore_vfp_context(&aux->vfp);
- #endif
- 
- 	return err;
-@@ -348,8 +431,8 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
- 		err |= preserve_iwmmxt_context(&aux->iwmmxt);
- #endif
- #ifdef CONFIG_VFP
--//	if (err == 0)
--//		err |= vfp_save_state(&sf->aux.vfp);
-+	if (err == 0)
-+		err |= preserve_vfp_context(&aux->vfp);
- #endif
- 	__put_user_error(0, &aux->end_magic, err);
- 
--- 
-1.6.6.1
-