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)
81 lines
1.5 KiB
ArmAsm
81 lines
1.5 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/* n2-asm.S: Niagara2 RNG hypervisor call assembler.
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*
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* Copyright (C) 2008 David S. Miller <davem@davemloft.net>
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*/
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#include <linux/linkage.h>
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#include <asm/hypervisor.h>
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#include "n2rng.h"
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.text
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ENTRY(sun4v_rng_get_diag_ctl)
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mov HV_FAST_RNG_GET_DIAG_CTL, %o5
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ta HV_FAST_TRAP
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retl
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nop
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ENDPROC(sun4v_rng_get_diag_ctl)
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ENTRY(sun4v_rng_ctl_read_v1)
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mov %o1, %o3
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mov %o2, %o4
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mov HV_FAST_RNG_CTL_READ, %o5
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ta HV_FAST_TRAP
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stx %o1, [%o3]
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retl
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stx %o2, [%o4]
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ENDPROC(sun4v_rng_ctl_read_v1)
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ENTRY(sun4v_rng_ctl_read_v2)
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save %sp, -192, %sp
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mov %i0, %o0
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mov %i1, %o1
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mov HV_FAST_RNG_CTL_READ, %o5
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ta HV_FAST_TRAP
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stx %o1, [%i2]
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stx %o2, [%i3]
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stx %o3, [%i4]
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stx %o4, [%i5]
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ret
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restore %g0, %o0, %o0
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ENDPROC(sun4v_rng_ctl_read_v2)
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ENTRY(sun4v_rng_ctl_write_v1)
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mov %o3, %o4
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mov HV_FAST_RNG_CTL_WRITE, %o5
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ta HV_FAST_TRAP
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retl
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stx %o1, [%o4]
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ENDPROC(sun4v_rng_ctl_write_v1)
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ENTRY(sun4v_rng_ctl_write_v2)
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mov HV_FAST_RNG_CTL_WRITE, %o5
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ta HV_FAST_TRAP
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retl
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nop
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ENDPROC(sun4v_rng_ctl_write_v2)
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ENTRY(sun4v_rng_data_read_diag_v1)
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mov %o2, %o4
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mov HV_FAST_RNG_DATA_READ_DIAG, %o5
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ta HV_FAST_TRAP
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retl
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stx %o1, [%o4]
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ENDPROC(sun4v_rng_data_read_diag_v1)
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ENTRY(sun4v_rng_data_read_diag_v2)
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mov %o3, %o4
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mov HV_FAST_RNG_DATA_READ_DIAG, %o5
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ta HV_FAST_TRAP
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retl
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stx %o1, [%o4]
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ENDPROC(sun4v_rng_data_read_diag_v2)
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ENTRY(sun4v_rng_data_read)
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mov %o1, %o4
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mov HV_FAST_RNG_DATA_READ, %o5
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ta HV_FAST_TRAP
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retl
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stx %o1, [%o4]
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ENDPROC(sun4v_rng_data_read)
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