linux/2.6.30: R.I.P.

SVN-Revision: 31411

1 files changed, 0 insertions, 70 deletions

diff --git a/target/linux/generic/patches-2.6.30/990-fix_feroceon_vfp_handling.patch b/target/linux/generic/patches-2.6.30/990-fix_feroceon_vfp_handling.patch
deleted file mode 100644
index 8d986d484a..0000000000
--- a/target/linux/generic/patches-2.6.30/990-fix_feroceon_vfp_handling.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-From: Catalin Marinas <catalin.marinas@arm.com>
-Date: Sat, 30 May 2009 13:00:18 +0000 (+0100)
-Subject: Fix the VFP handling on the Feroceon CPU
-X-Git-Url: http://www.linux-arm.org/git?p=linux-2.6.git;a=commitdiff_plain;h=85d6943af50537d3aec58b967ffbd3fec88453e9;hp=26584853a44c58f3d6ac7360d697a2ddcd1a3efa
-
-Fix the VFP handling on the Feroceon CPU
-
-This CPU generates synchronous VFP exceptions in a non-standard way -
-the FPEXC.EX bit set but without the FPSCR.IXE bit being set like in the
-VFP subarchitecture 1 or just the FPEXC.DEX bit like in VFP
-subarchitecture 2. The main problem is that the faulty instruction
-(which needs to be emulated in software) will be restarted several times
-(normally until a context switch disables the VFP). This patch ensures
-that the VFP exception is treated as synchronous.
-
-Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
-Cc: Nicolas Pitre <nico@cam.org>
----
-
---- a/arch/arm/vfp/vfphw.S
-+++ b/arch/arm/vfp/vfphw.S
-@@ -100,6 +100,7 @@ ENTRY(vfp_support_entry)
- 	beq	no_old_VFP_process
- 	VFPFSTMIA r4, r5		@ save the working registers
- 	VFPFMRX	r5, FPSCR		@ current status
-+#ifndef CONFIG_CPU_FEROCEON
- 	tst	r1, #FPEXC_EX		@ is there additional state to save?
- 	beq	1f
- 	VFPFMRX	r6, FPINST		@ FPINST (only if FPEXC.EX is set)
-@@ -107,6 +108,7 @@ ENTRY(vfp_support_entry)
- 	beq	1f
- 	VFPFMRX	r8, FPINST2		@ FPINST2 if needed (and present)
- 1:
-+#endif
- 	stmia	r4, {r1, r5, r6, r8}	@ save FPEXC, FPSCR, FPINST, FPINST2
- 					@ and point r4 at the word at the
- 					@ start of the register dump
-@@ -119,6 +121,7 @@ no_old_VFP_process:
- 	VFPFLDMIA r10, r5		@ reload the working registers while
- 					@ FPEXC is in a safe state
- 	ldmia	r10, {r1, r5, r6, r8}	@ load FPEXC, FPSCR, FPINST, FPINST2
-+#ifndef CONFIG_CPU_FEROCEON
- 	tst	r1, #FPEXC_EX		@ is there additional state to restore?
- 	beq	1f
- 	VFPFMXR	FPINST, r6		@ restore FPINST (only if FPEXC.EX is set)
-@@ -126,6 +129,7 @@ no_old_VFP_process:
- 	beq	1f
- 	VFPFMXR	FPINST2, r8		@ FPINST2 if needed (and present)
- 1:
-+#endif
- 	VFPFMXR	FPSCR, r5		@ restore status
- 
- check_for_exception:
---- a/arch/arm/vfp/vfpmodule.c
-+++ b/arch/arm/vfp/vfpmodule.c
-@@ -253,12 +253,14 @@ void VFP_bounce(u32 trigger, u32 fpexc,
- 	}
- 
- 	if (fpexc & FPEXC_EX) {
-+#ifndef CONFIG_CPU_FEROCEON
- 		/*
- 		 * Asynchronous exception. The instruction is read from FPINST
- 		 * and the interrupted instruction has to be restarted.
- 		 */
- 		trigger = fmrx(FPINST);
- 		regs->ARM_pc -= 4;
-+#endif
- 	} else if (!(fpexc & FPEXC_DEX)) {
- 		/*
- 		 * Illegal combination of bits. It can be caused by an