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mips: Convert 'nop' to 'ssnop' -- for future-proofing

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Change-Id: I17625f4d56a1f5205887cb47668a2dcb628053f4
This commit is contained in:
Solomon Peachy 2020-09-04 23:50:38 -04:00
parent 8188588f14
commit d015165bc5
6 changed files with 77 additions and 77 deletions
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72
firmware/target/mips/ingenic_jz47xx/crt0.S
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@ -108,7 +108,7 @@ _cache_loop:
cache 0x9, 0(t0) # index store dcache tag
addiu t0, t0, 0x20 # 32 bytes per cache line
bne t0, t1, _cache_loop
nop
ssnop
/*
----------------------------------------------------
@ -116,10 +116,10 @@ _cache_loop:
----------------------------------------------------
*/
mfc0 t0, C0_CONFIG
nop
ssnop
ori t0, 2
mtc0 t0, C0_CONFIG
nop
ssnop
/*
----------------------------------------------------
@ -183,9 +183,9 @@ _irq_stack_loop:
----------------------------------------------------
*/
jal system_main /* Init clocks etc first */
nop
ssnop
j main
nop
ssnop
/*
@ -197,19 +197,19 @@ _irq_stack_loop:
.section .vectors.1, "ax", %progbits
j tlb_refill_handler
nop
ssnop
.section .vectors.2, "ax", %progbits
j real_exception_handler
nop
ssnop
.section .vectors.3, "ax", %progbits
j real_exception_handler
nop
ssnop
.section .vectors.4, "ax", %progbits
j real_exception_handler
nop
ssnop
.section .vectors, "ax", %progbits
real_exception_handler:
@ -253,47 +253,47 @@ real_exception_handler:
sw v0, 0x68(sp)
sw $1, 0x6C(sp)
mflo k0
nop
ssnop
sw k0, 0x70(sp)
mfhi k0
nop
ssnop
sw k0, 0x74(sp)
mfc0 k0, C0_STATUS
nop
nop
nop
ssnop
ssnop
ssnop
sw k0, 0x78(sp)
mfc0 k0, C0_EPC
nop
nop
nop
ssnop
ssnop
ssnop
sw k0, 0x7C(sp)
li k1, M_CauseExcCode
mfc0 k0, C0_CAUSE
and k0, k1
beq zero, k0, _int
nop
ssnop
j _exception
nop
ssnop
_int:
jal intr_handler
nop
ssnop
j _exception_return
_exception:
move a0, sp
mfc0 a1, C0_CAUSE
nop
nop
nop
ssnop
ssnop
ssnop
mfc0 a2, C0_EPC
nop
nop
nop
ssnop
ssnop
ssnop
jal exception_handler
nop
ssnop
_exception_return:
lw ra, 0(sp)
@ -326,23 +326,23 @@ _exception_return:
lw $1, 0x6C(sp)
lw k0, 0x70(sp)
mtlo k0
nop
ssnop
lw k0, 0x74(sp)
mthi k0
nop
ssnop
lw k0, 0x78(sp)
mtc0 k0, C0_STATUS
nop
nop
nop
ssnop
ssnop
ssnop
lw k0, 0x7C(sp)
mtc0 k0, C0_EPC
nop
nop
nop
ssnop
ssnop
ssnop
/* Restore previous stack pointer */
lw sp, 0x80(sp)
eret
nop
ssnop
.set reorder
.set at