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80 lines
1.5 KiB
80 lines
1.5 KiB
/* 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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