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authorVineet Gupta <vgupta@synopsys.com>2013-05-28 09:43:17 +0530
committerVineet Gupta <vgupta@synopsys.com>2013-06-22 19:23:22 +0530
commit2fa919045b72ec892e17d56f888e6af4260b7629 (patch)
tree1f0f89110514c07939666d6b1f225b3e8dff6be3 /arch/arc/include/asm
parent283237a04fd332bddc2ac298e6ad7d23a1fc4b99 (diff)
ARC: pt_regs update #2: Remove unused gutter at start of pt_regs
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/include/asm')
-rw-r--r--arch/arc/include/asm/entry.h16
-rw-r--r--arch/arc/include/asm/ptrace.h6
2 files changed, 0 insertions, 22 deletions
diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h
index 2b274fa9c5a7..5ff7b8dd3d5b 100644
--- a/arch/arc/include/asm/entry.h
+++ b/arch/arc/include/asm/entry.h
@@ -432,9 +432,6 @@
st.a r9, [sp, -4]
lr r9, [erbta]
st.a r9, [sp, -4]
-
- /* move up by 1 word to "create" pt_regs->"stack_place_holder" */
- sub sp, sp, 4
.endm
/*--------------------------------------------------------------
@@ -474,9 +471,6 @@
* by hardware and that is not good.
*-------------------------------------------------------------*/
.macro RESTORE_ALL_SYS
-
- add sp, sp, 4 /* hop over unused "pt_regs->stack_place_holder" */
-
ld.ab r9, [sp, 4]
sr r9, [erbta]
ld.ab r9, [sp, 4]
@@ -530,9 +524,6 @@
st.a r9, [sp, -4]
lr r9, [bta_l1]
st.a r9, [sp, -4]
-
- /* move up by 1 word to "create" pt_regs->"stack_place_holder" */
- sub sp, sp, 4
.endm
.macro SAVE_ALL_INT2
@@ -561,9 +552,6 @@
st.a r9, [sp, -4]
lr r9, [bta_l2]
st.a r9, [sp, -4]
-
- /* move up by 1 word to "create" pt_regs->"stack_place_holder" */
- sub sp, sp, 4
.endm
/*--------------------------------------------------------------
@@ -577,8 +565,6 @@
*-------------------------------------------------------------*/
.macro RESTORE_ALL_INT1
- add sp, sp, 4 /* hop over unused "pt_regs->stack_place_holder" */
-
ld.ab r9, [sp, 4] /* Actual reg file */
sr r9, [bta_l1]
ld.ab r9, [sp, 4]
@@ -601,8 +587,6 @@
.endm
.macro RESTORE_ALL_INT2
- add sp, sp, 4 /* hop over unused "pt_regs->stack_place_holder" */
-
ld.ab r9, [sp, 4]
sr r9, [bta_l2]
ld.ab r9, [sp, 4]
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index f82a3a2201b5..7491bb7428bd 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -17,12 +17,6 @@
/* THE pt_regs: Defines how regs are saved during entry into kernel */
struct pt_regs {
- /*
- * 1 word gutter after reg-file has been saved
- * Technically not needed, Since SP always points to a "full" location
- * (vs. "empty"). But pt_regs is shared with tools....
- */
- long res;
/* Real registers */
long bta; /* bta_l1, bta_l2, erbta */