Commit b4fe5e2d authored by Markos Chandras's avatar Markos Chandras Committed by Luis Henriques

MIPS: kernel: cps-vec: Replace "addi" with "addiu"

commit acac4108 upstream.

The "addi" instruction will trap on overflows which is not something
we need in this code, so we replace that with "addiu".

Link: http://www.linux-mips.org/archives/linux-mips/2015-01/msg00430.html
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: default avatarMarkos Chandras <markos.chandras@imgtec.com>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent f27d0731
......@@ -99,11 +99,11 @@ not_nmi:
xori t2, t1, 0x7
beqz t2, 1f
li t3, 32
addi t1, t1, 1
addiu t1, t1, 1
sllv t1, t3, t1
1: /* At this point t1 == I-cache sets per way */
_EXT t2, v0, MIPS_CONF1_IA_SHF, MIPS_CONF1_IA_SZ
addi t2, t2, 1
addiu t2, t2, 1
mul t1, t1, t0
mul t1, t1, t2
......@@ -126,11 +126,11 @@ icache_done:
xori t2, t1, 0x7
beqz t2, 1f
li t3, 32
addi t1, t1, 1
addiu t1, t1, 1
sllv t1, t3, t1
1: /* At this point t1 == D-cache sets per way */
_EXT t2, v0, MIPS_CONF1_DA_SHF, MIPS_CONF1_DA_SZ
addi t2, t2, 1
addiu t2, t2, 1
mul t1, t1, t0
mul t1, t1, t2
......@@ -249,7 +249,7 @@ LEAF(mips_cps_core_init)
mfc0 t0, CP0_MVPCONF0
srl t0, t0, MVPCONF0_PVPE_SHIFT
andi t0, t0, (MVPCONF0_PVPE >> MVPCONF0_PVPE_SHIFT)
addi t7, t0, 1
addiu t7, t0, 1
/* If there's only 1, we're done */
beqz t0, 2f
......@@ -279,7 +279,7 @@ LEAF(mips_cps_core_init)
mttc0 t0, CP0_TCHALT
/* Next VPE */
addi t5, t5, 1
addiu t5, t5, 1
slt t0, t5, t7
bnez t0, 1b
nop
......@@ -316,7 +316,7 @@ LEAF(mips_cps_boot_vpes)
mfc0 t1, CP0_MVPCONF0
srl t1, t1, MVPCONF0_PVPE_SHIFT
andi t1, t1, MVPCONF0_PVPE >> MVPCONF0_PVPE_SHIFT
addi t1, t1, 1
addiu t1, t1, 1
/* Calculate a mask for the VPE ID from EBase.CPUNum */
clz t1, t1
......@@ -422,7 +422,7 @@ LEAF(mips_cps_boot_vpes)
/* Next VPE */
2: srl t6, t6, 1
addi t5, t5, 1
addiu t5, t5, 1
bnez t6, 1b
nop
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment