aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arc
diff options
context:
space:
mode:
authorVineet Gupta <vgupta@synopsys.com>2014-09-27 03:23:41 -0400
committerVineet Gupta <vgupta@synopsys.com>2014-10-13 05:16:21 -0400
commit52e9bae93802bd29c33be11e9e758ad7daac805f (patch)
treecc52aa5c895bac9d8ca4128ec86a6dbbe96bbc7b /arch/arc
parentbe64c997d96dd29029ed40d9df9cbf80fa1c7ed4 (diff)
ARC: unbork FPU save/restore
Fixes: 2ab402dfd65d15a4b2 "ARC: make start_thread() out-of-line" CC: <stable@vger.kernel.org> #3.16 Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/include/asm/arcregs.h8
-rw-r--r--arch/arc/include/asm/processor.h9
2 files changed, 9 insertions, 8 deletions
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index d6d82577cabe..3ea5b437bfb9 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -189,14 +189,6 @@
189#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10)) 189#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
190#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10) 190#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)
191 191
192#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
193/* These DPFP regs need to be saved/restored across ctx-sw */
194struct arc_fpu {
195 struct {
196 unsigned int l, h;
197 } aux_dpfp[2];
198};
199#endif
200 192
201/* 193/*
202 *************************************************************** 194 ***************************************************************
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index 08fbe2e9d4cc..210fe97464c3 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -18,6 +18,15 @@
18 18
19#include <asm/ptrace.h> 19#include <asm/ptrace.h>
20 20
21#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
22/* These DPFP regs need to be saved/restored across ctx-sw */
23struct arc_fpu {
24 struct {
25 unsigned int l, h;
26 } aux_dpfp[2];
27};
28#endif
29
21/* Arch specific stuff which needs to be saved per task. 30/* Arch specific stuff which needs to be saved per task.
22 * However these items are not so important so as to earn a place in 31 * However these items are not so important so as to earn a place in
23 * struct thread_info 32 * struct thread_info