summaryrefslogtreecommitdiffstats
path: root/arch/alpha/kernel
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2010-10-06 11:10:48 +1000
committerDave Airlie <airlied@redhat.com>2010-10-06 11:10:48 +1000
commitfb7ba2114bcd8bb51640c20bc68f89164b29b9ed (patch)
tree80b4a779130a477680a72109257fb8c19d66cf22 /arch/alpha/kernel
parent9a170caed6fce89da77852575a7eee7dbadee332 (diff)
parentabb295f3b3db602f91accf58b526b30b48673af1 (diff)
downloadlinux-fb7ba2114bcd8bb51640c20bc68f89164b29b9ed.tar.bz2
Merge remote branch 'korg/drm-fixes' into drm-vmware-next
necessary for some of the vmware fixes to be pushed in. Conflicts: drivers/gpu/drm/drm_gem.c drivers/gpu/drm/i915/intel_fb.c include/drm/drmP.h
Diffstat (limited to 'arch/alpha/kernel')
-rw-r--r--arch/alpha/kernel/entry.S11
-rw-r--r--arch/alpha/kernel/process.c2
2 files changed, 8 insertions, 5 deletions
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index ab1ee0ab082b..d1273c1a1364 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -73,8 +73,6 @@
ldq $20, HAE_REG($19); \
stq $21, HAE_CACHE($19); \
stq $21, 0($20); \
- ldq $0, 0($sp); \
- ldq $1, 8($sp); \
99:; \
ldq $19, 72($sp); \
ldq $20, 80($sp); \
@@ -316,7 +314,7 @@ ret_from_sys_call:
cmovne $26, 0, $19 /* $19 = 0 => non-restartable */
ldq $0, SP_OFF($sp)
and $0, 8, $0
- beq $0, restore_all
+ beq $0, ret_to_kernel
ret_to_user:
/* Make sure need_resched and sigpending don't change between
sampling and the rti. */
@@ -329,6 +327,11 @@ restore_all:
RESTORE_ALL
call_pal PAL_rti
+ret_to_kernel:
+ lda $16, 7
+ call_pal PAL_swpipl
+ br restore_all
+
.align 3
$syscall_error:
/*
@@ -657,7 +660,7 @@ kernel_thread:
/* We don't actually care for a3 success widgetry in the kernel.
Not for positive errno values. */
stq $0, 0($sp) /* $0 */
- br restore_all
+ br ret_to_kernel
.end kernel_thread
/*
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 842dba308eab..3ec35066f1dc 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -356,7 +356,7 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
dest[27] = pt->r27;
dest[28] = pt->r28;
dest[29] = pt->gp;
- dest[30] = rdusp();
+ dest[30] = ti == current_thread_info() ? rdusp() : ti->pcb.usp;
dest[31] = pt->pc;
/* Once upon a time this was the PS value. Which is stupid