threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
48 lines
586 B
ArmAsm
48 lines
586 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* unsigned long __xdiv64_32(unsigned long long n, unsigned long d);
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*/
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#include <linux/linkage.h>
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.text
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ENTRY(__xdiv64_32)
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#ifdef CONFIG_CPU_LITTLE_ENDIAN
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mov r4, r0
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mov r5, r1
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#else
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mov r4, r1
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mov r5, r0
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#endif
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cmp/hs r6, r1
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bf.s 1f
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mov #0, r2
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mov r1, r2
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mov #0, r3
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div0u
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.rept 32
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rotcl r2
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div1 r6, r3
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.endr
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rotcl r2
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mul.l r6, r2
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sts macl, r3
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sub r3, r1
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1:
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div0u
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.rept 32
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rotcl r0
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div1 r6, r1
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.endr
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#ifdef CONFIG_CPU_LITTLE_ENDIAN
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mov r2, r1
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rts
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rotcl r0
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#else
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rotcl r0
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mov r0, r1
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rts
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mov r2, r0
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#endif
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