mirror of
https://github.com/Freescale/meta-freescale-3rdparty.git
synced 2025-07-19 12:09:01 +02:00
linux-cubox-i: updates the kernel to 6fc170bb7b SRCREV
This patch update the revision to 6fc170bb7b and corrects the following - 1. SUMMARY field. The kernel forks Boundary Devices BSP 4.1.0 but it's Freescale BSP 4.1.0 as-is. 2. CONFIG_MACH_C1 becomes CONFIG_MACH_HB. Carrier-one was renamed to be HummingBoard. 3. Following two patches not needed anymore since they are part of the kernel - 0002-ARM-7668-1-fix-memset-related-crashes-caused-by-rece.patch 0003-ARM-7670-1-fix-the-memset-fix.patch Change-Id: I34657245890dc4200592b58a6289ba90a7e9df2c Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
This commit is contained in:
Rabeeh Khoury
Otavio Salvador
parent
d5ceed9425
commit
5a1e9ce6e3
|
|
@ -1,259 +0,0 @@
|
|||
From 2235b85f1c76d98b5f1e160cbd0a61a84c15e125 Mon Sep 17 00:00:00 2001
|
||||
From: Ivan Djelic <ivan.djelic@parrot.com>
|
||||
Date: Wed, 6 Mar 2013 20:09:27 +0100
|
||||
Subject: [PATCH] ARM: 7668/1: fix memset-related crashes caused by recent GCC
|
||||
(4.7.2) optimizations
|
||||
Organization: O.S. Systems Software LTDA.
|
||||
|
||||
Recent GCC versions (e.g. GCC-4.7.2) perform optimizations based on
|
||||
assumptions about the implementation of memset and similar functions.
|
||||
The current ARM optimized memset code does not return the value of
|
||||
its first argument, as is usually expected from standard implementations.
|
||||
|
||||
For instance in the following function:
|
||||
|
||||
void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
|
||||
{
|
||||
memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
|
||||
waiter->magic = waiter;
|
||||
INIT_LIST_HEAD(&waiter->list);
|
||||
}
|
||||
|
||||
compiled as:
|
||||
|
||||
800554d0 <debug_mutex_lock_common>:
|
||||
800554d0: e92d4008 push {r3, lr}
|
||||
800554d4: e1a00001 mov r0, r1
|
||||
800554d8: e3a02010 mov r2, #16 ; 0x10
|
||||
800554dc: e3a01011 mov r1, #17 ; 0x11
|
||||
800554e0: eb04426e bl 80165ea0 <memset>
|
||||
800554e4: e1a03000 mov r3, r0
|
||||
800554e8: e583000c str r0, [r3, #12]
|
||||
800554ec: e5830000 str r0, [r3]
|
||||
800554f0: e5830004 str r0, [r3, #4]
|
||||
800554f4: e8bd8008 pop {r3, pc}
|
||||
|
||||
GCC assumes memset returns the value of pointer 'waiter' in register r0; causing
|
||||
register/memory corruptions.
|
||||
|
||||
This patch fixes the return value of the assembly version of memset.
|
||||
It adds a 'mov' instruction and merges an additional load+store into
|
||||
existing load/store instructions.
|
||||
For ease of review, here is a breakdown of the patch into 4 simple steps:
|
||||
|
||||
Step 1
|
||||
======
|
||||
Perform the following substitutions:
|
||||
ip -> r8, then
|
||||
r0 -> ip,
|
||||
and insert 'mov ip, r0' as the first statement of the function.
|
||||
At this point, we have a memset() implementation returning the proper result,
|
||||
but corrupting r8 on some paths (the ones that were using ip).
|
||||
|
||||
Step 2
|
||||
======
|
||||
Make sure r8 is saved and restored when (! CALGN(1)+0) == 1:
|
||||
|
||||
save r8:
|
||||
- str lr, [sp, #-4]!
|
||||
+ stmfd sp!, {r8, lr}
|
||||
|
||||
and restore r8 on both exit paths:
|
||||
- ldmeqfd sp!, {pc} @ Now <64 bytes to go.
|
||||
+ ldmeqfd sp!, {r8, pc} @ Now <64 bytes to go.
|
||||
(...)
|
||||
tst r2, #16
|
||||
stmneia ip!, {r1, r3, r8, lr}
|
||||
- ldr lr, [sp], #4
|
||||
+ ldmfd sp!, {r8, lr}
|
||||
|
||||
Step 3
|
||||
======
|
||||
Make sure r8 is saved and restored when (! CALGN(1)+0) == 0:
|
||||
|
||||
save r8:
|
||||
- stmfd sp!, {r4-r7, lr}
|
||||
+ stmfd sp!, {r4-r8, lr}
|
||||
|
||||
and restore r8 on both exit paths:
|
||||
bgt 3b
|
||||
- ldmeqfd sp!, {r4-r7, pc}
|
||||
+ ldmeqfd sp!, {r4-r8, pc}
|
||||
(...)
|
||||
tst r2, #16
|
||||
stmneia ip!, {r4-r7}
|
||||
- ldmfd sp!, {r4-r7, lr}
|
||||
+ ldmfd sp!, {r4-r8, lr}
|
||||
|
||||
Step 4
|
||||
======
|
||||
Rewrite register list "r4-r7, r8" as "r4-r8".
|
||||
|
||||
Upstream-Status: Pending
|
||||
|
||||
Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
|
||||
Reviewed-by: Nicolas Pitre <nico@linaro.org>
|
||||
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
|
||||
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
||||
(cherry picked from commit 455bd4c430b0c0a361f38e8658a0d6cb469942b5)
|
||||
---
|
||||
arch/arm/lib/memset.S | 85 ++++++++++++++++++++++++++-------------------------
|
||||
1 file changed, 44 insertions(+), 41 deletions(-)
|
||||
|
||||
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
|
||||
index 650d592..d912e73 100644
|
||||
--- a/arch/arm/lib/memset.S
|
||||
+++ b/arch/arm/lib/memset.S
|
||||
@@ -19,9 +19,9 @@
|
||||
1: subs r2, r2, #4 @ 1 do we have enough
|
||||
blt 5f @ 1 bytes to align with?
|
||||
cmp r3, #2 @ 1
|
||||
- strltb r1, [r0], #1 @ 1
|
||||
- strleb r1, [r0], #1 @ 1
|
||||
- strb r1, [r0], #1 @ 1
|
||||
+ strltb r1, [ip], #1 @ 1
|
||||
+ strleb r1, [ip], #1 @ 1
|
||||
+ strb r1, [ip], #1 @ 1
|
||||
add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3))
|
||||
/*
|
||||
* The pointer is now aligned and the length is adjusted. Try doing the
|
||||
@@ -29,10 +29,14 @@
|
||||
*/
|
||||
|
||||
ENTRY(memset)
|
||||
- ands r3, r0, #3 @ 1 unaligned?
|
||||
+/*
|
||||
+ * Preserve the contents of r0 for the return value.
|
||||
+ */
|
||||
+ mov ip, r0
|
||||
+ ands r3, ip, #3 @ 1 unaligned?
|
||||
bne 1b @ 1
|
||||
/*
|
||||
- * we know that the pointer in r0 is aligned to a word boundary.
|
||||
+ * we know that the pointer in ip is aligned to a word boundary.
|
||||
*/
|
||||
orr r1, r1, r1, lsl #8
|
||||
orr r1, r1, r1, lsl #16
|
||||
@@ -43,29 +47,28 @@ ENTRY(memset)
|
||||
#if ! CALGN(1)+0
|
||||
|
||||
/*
|
||||
- * We need an extra register for this loop - save the return address and
|
||||
- * use the LR
|
||||
+ * We need 2 extra registers for this loop - use r8 and the LR
|
||||
*/
|
||||
- str lr, [sp, #-4]!
|
||||
- mov ip, r1
|
||||
+ stmfd sp!, {r8, lr}
|
||||
+ mov r8, r1
|
||||
mov lr, r1
|
||||
|
||||
2: subs r2, r2, #64
|
||||
- stmgeia r0!, {r1, r3, ip, lr} @ 64 bytes at a time.
|
||||
- stmgeia r0!, {r1, r3, ip, lr}
|
||||
- stmgeia r0!, {r1, r3, ip, lr}
|
||||
- stmgeia r0!, {r1, r3, ip, lr}
|
||||
+ stmgeia ip!, {r1, r3, r8, lr} @ 64 bytes at a time.
|
||||
+ stmgeia ip!, {r1, r3, r8, lr}
|
||||
+ stmgeia ip!, {r1, r3, r8, lr}
|
||||
+ stmgeia ip!, {r1, r3, r8, lr}
|
||||
bgt 2b
|
||||
- ldmeqfd sp!, {pc} @ Now <64 bytes to go.
|
||||
+ ldmeqfd sp!, {r8, pc} @ Now <64 bytes to go.
|
||||
/*
|
||||
* No need to correct the count; we're only testing bits from now on
|
||||
*/
|
||||
tst r2, #32
|
||||
- stmneia r0!, {r1, r3, ip, lr}
|
||||
- stmneia r0!, {r1, r3, ip, lr}
|
||||
+ stmneia ip!, {r1, r3, r8, lr}
|
||||
+ stmneia ip!, {r1, r3, r8, lr}
|
||||
tst r2, #16
|
||||
- stmneia r0!, {r1, r3, ip, lr}
|
||||
- ldr lr, [sp], #4
|
||||
+ stmneia ip!, {r1, r3, r8, lr}
|
||||
+ ldmfd sp!, {r8, lr}
|
||||
|
||||
#else
|
||||
|
||||
@@ -74,54 +77,54 @@ ENTRY(memset)
|
||||
* whole cache lines at once.
|
||||
*/
|
||||
|
||||
- stmfd sp!, {r4-r7, lr}
|
||||
+ stmfd sp!, {r4-r8, lr}
|
||||
mov r4, r1
|
||||
mov r5, r1
|
||||
mov r6, r1
|
||||
mov r7, r1
|
||||
- mov ip, r1
|
||||
+ mov r8, r1
|
||||
mov lr, r1
|
||||
|
||||
cmp r2, #96
|
||||
- tstgt r0, #31
|
||||
+ tstgt ip, #31
|
||||
ble 3f
|
||||
|
||||
- and ip, r0, #31
|
||||
- rsb ip, ip, #32
|
||||
- sub r2, r2, ip
|
||||
- movs ip, ip, lsl #(32 - 4)
|
||||
- stmcsia r0!, {r4, r5, r6, r7}
|
||||
- stmmiia r0!, {r4, r5}
|
||||
- tst ip, #(1 << 30)
|
||||
- mov ip, r1
|
||||
- strne r1, [r0], #4
|
||||
+ and r8, ip, #31
|
||||
+ rsb r8, r8, #32
|
||||
+ sub r2, r2, r8
|
||||
+ movs r8, r8, lsl #(32 - 4)
|
||||
+ stmcsia ip!, {r4, r5, r6, r7}
|
||||
+ stmmiia ip!, {r4, r5}
|
||||
+ tst r8, #(1 << 30)
|
||||
+ mov r8, r1
|
||||
+ strne r1, [ip], #4
|
||||
|
||||
3: subs r2, r2, #64
|
||||
- stmgeia r0!, {r1, r3-r7, ip, lr}
|
||||
- stmgeia r0!, {r1, r3-r7, ip, lr}
|
||||
+ stmgeia ip!, {r1, r3-r8, lr}
|
||||
+ stmgeia ip!, {r1, r3-r8, lr}
|
||||
bgt 3b
|
||||
- ldmeqfd sp!, {r4-r7, pc}
|
||||
+ ldmeqfd sp!, {r4-r8, pc}
|
||||
|
||||
tst r2, #32
|
||||
- stmneia r0!, {r1, r3-r7, ip, lr}
|
||||
+ stmneia ip!, {r1, r3-r8, lr}
|
||||
tst r2, #16
|
||||
- stmneia r0!, {r4-r7}
|
||||
- ldmfd sp!, {r4-r7, lr}
|
||||
+ stmneia ip!, {r4-r7}
|
||||
+ ldmfd sp!, {r4-r8, lr}
|
||||
|
||||
#endif
|
||||
|
||||
4: tst r2, #8
|
||||
- stmneia r0!, {r1, r3}
|
||||
+ stmneia ip!, {r1, r3}
|
||||
tst r2, #4
|
||||
- strne r1, [r0], #4
|
||||
+ strne r1, [ip], #4
|
||||
/*
|
||||
* When we get here, we've got less than 4 bytes to zero. We
|
||||
* may have an unaligned pointer as well.
|
||||
*/
|
||||
5: tst r2, #2
|
||||
- strneb r1, [r0], #1
|
||||
- strneb r1, [r0], #1
|
||||
+ strneb r1, [ip], #1
|
||||
+ strneb r1, [ip], #1
|
||||
tst r2, #1
|
||||
- strneb r1, [r0], #1
|
||||
+ strneb r1, [ip], #1
|
||||
mov pc, lr
|
||||
ENDPROC(memset)
|
||||
--
|
||||
1.8.4.rc3
|
||||
|
||||
|
|
@ -1,87 +0,0 @@
|
|||
From 2ba23fa6c4128febaaf57fe184420a7111caa237 Mon Sep 17 00:00:00 2001
|
||||
From: Nicolas Pitre <nicolas.pitre@linaro.org>
|
||||
Date: Tue, 12 Mar 2013 13:00:42 +0100
|
||||
Subject: [PATCH] ARM: 7670/1: fix the memset fix
|
||||
Organization: O.S. Systems Software LTDA.
|
||||
|
||||
Commit 455bd4c430b0 ("ARM: 7668/1: fix memset-related crashes caused by
|
||||
recent GCC (4.7.2) optimizations") attempted to fix a compliance issue
|
||||
with the memset return value. However the memset itself became broken
|
||||
by that patch for misaligned pointers.
|
||||
|
||||
This fixes the above by branching over the entry code from the
|
||||
misaligned fixup code to avoid reloading the original pointer.
|
||||
|
||||
Also, because the function entry alignment is wrong in the Thumb mode
|
||||
compilation, that fixup code is moved to the end.
|
||||
|
||||
While at it, the entry instructions are slightly reworked to help dual
|
||||
issue pipelines.
|
||||
|
||||
Upstream-Status: Pending
|
||||
|
||||
Signed-off-by: Nicolas Pitre <nico@linaro.org>
|
||||
Tested-by: Alexander Holler <holler@ahsoftware.de>
|
||||
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
||||
(cherry picked from commit 418df63adac56841ef6b0f1fcf435bc64d4ed177)
|
||||
---
|
||||
arch/arm/lib/memset.S | 33 +++++++++++++--------------------
|
||||
1 file changed, 13 insertions(+), 20 deletions(-)
|
||||
|
||||
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
|
||||
index d912e73..94b0650 100644
|
||||
--- a/arch/arm/lib/memset.S
|
||||
+++ b/arch/arm/lib/memset.S
|
||||
@@ -14,31 +14,15 @@
|
||||
|
||||
.text
|
||||
.align 5
|
||||
- .word 0
|
||||
-
|
||||
-1: subs r2, r2, #4 @ 1 do we have enough
|
||||
- blt 5f @ 1 bytes to align with?
|
||||
- cmp r3, #2 @ 1
|
||||
- strltb r1, [ip], #1 @ 1
|
||||
- strleb r1, [ip], #1 @ 1
|
||||
- strb r1, [ip], #1 @ 1
|
||||
- add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3))
|
||||
-/*
|
||||
- * The pointer is now aligned and the length is adjusted. Try doing the
|
||||
- * memset again.
|
||||
- */
|
||||
|
||||
ENTRY(memset)
|
||||
-/*
|
||||
- * Preserve the contents of r0 for the return value.
|
||||
- */
|
||||
- mov ip, r0
|
||||
- ands r3, ip, #3 @ 1 unaligned?
|
||||
- bne 1b @ 1
|
||||
+ ands r3, r0, #3 @ 1 unaligned?
|
||||
+ mov ip, r0 @ preserve r0 as return value
|
||||
+ bne 6f @ 1
|
||||
/*
|
||||
* we know that the pointer in ip is aligned to a word boundary.
|
||||
*/
|
||||
- orr r1, r1, r1, lsl #8
|
||||
+1: orr r1, r1, r1, lsl #8
|
||||
orr r1, r1, r1, lsl #16
|
||||
mov r3, r1
|
||||
cmp r2, #16
|
||||
@@ -127,4 +111,13 @@ ENTRY(memset)
|
||||
tst r2, #1
|
||||
strneb r1, [ip], #1
|
||||
mov pc, lr
|
||||
+
|
||||
+6: subs r2, r2, #4 @ 1 do we have enough
|
||||
+ blt 5b @ 1 bytes to align with?
|
||||
+ cmp r3, #2 @ 1
|
||||
+ strltb r1, [ip], #1 @ 1
|
||||
+ strleb r1, [ip], #1 @ 1
|
||||
+ strb r1, [ip], #1 @ 1
|
||||
+ add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3))
|
||||
+ b 1b
|
||||
ENDPROC(memset)
|
||||
--
|
||||
1.8.4.rc3
|
||||
|
||||
|
|
@ -26,7 +26,7 @@ CONFIG_MACH_MX6Q_SABRELITE=y
|
|||
CONFIG_MACH_MX6Q_SABRESD=y
|
||||
CONFIG_MACH_MX6Q_SABREAUTO=y
|
||||
CONFIG_MACH_MX6Q_HDMIDONGLE=y
|
||||
CONFIG_MACH_C1=y
|
||||
CONFIG_MACH_HB=y
|
||||
CONFIG_MACH_CUBOX_I=y
|
||||
CONFIG_USB_EHCI_ARC_H1=y
|
||||
CONFIG_USB_FSL_ARC_OTG=y
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
include recipes-kernel/linux/linux-imx.inc
|
||||
|
||||
SUMMARY = "Boundary Devices Kernel 3.0.35 supported by SolidRun with additional machine specific patches"
|
||||
SRCREV = "be699c6777f376b5f28e60d8d65942ac94b39908"
|
||||
SUMMARY = "Freescale Kernel 3.0.35 supported by SolidRun with additional machine specific patches"
|
||||
SRCREV = "6fc170bb7bba5917a1515bfa3dc78c091dfbcde3"
|
||||
LOCALVERSION = "-4.1.0-cubox-i+yocto"
|
||||
SRCBRANCH ?= "imx_3.0.35_4.1.0"
|
||||
|
||||
|
|
@ -9,11 +9,11 @@ SRCBRANCH ?= "imx_3.0.35_4.1.0"
|
|||
# are already included in the kernel repository:
|
||||
# drm-vivante-Add-00-sufix-in-returned-bus-Id.patch
|
||||
# 0001-perf-tools-Fix-getrusage-related-build-failure-on-gl.patch
|
||||
# 0002-ARM-7668-1-fix-memset-related-crashes-caused-by-rece.patch
|
||||
# 0003-ARM-7670-1-fix-the-memset-fix.patch
|
||||
SRC_URI = "git://github.com/SolidRun/linux-imx6.git;branch=${SRCBRANCH} \
|
||||
file://defconfig \
|
||||
file://epdc-Rename-mxcfb_epdc_kernel.h-to-mxc_epdc.h.patch \
|
||||
file://0002-ARM-7668-1-fix-memset-related-crashes-caused-by-rece.patch \
|
||||
file://0003-ARM-7670-1-fix-the-memset-fix.patch \
|
||||
file://0004-ENGR00271136-Fix-build-break-when-CONFIG_CLK_DEBUG-i.patch \
|
||||
file://0005-ENGR00271359-Add-Multi-touch-support.patch \
|
||||
file://0006-Add-support-for-DVI-monitors.patch \
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user