| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | /* n2-asm.S: Niagara2 RNG hypervisor call assembler. |
| 2 | * |
| 3 | * Copyright (C) 2008 David S. Miller <davem@davemloft.net> |
| 4 | */ |
| 5 | #include <linux/linkage.h> |
| 6 | #include <asm/hypervisor.h> |
| 7 | #include "n2rng.h" |
| 8 | |
| 9 | .text |
| 10 | |
| 11 | ENTRY(sun4v_rng_get_diag_ctl) |
| 12 | mov HV_FAST_RNG_GET_DIAG_CTL, %o5 |
| 13 | ta HV_FAST_TRAP |
| 14 | retl |
| 15 | nop |
| 16 | ENDPROC(sun4v_rng_get_diag_ctl) |
| 17 | |
| 18 | ENTRY(sun4v_rng_ctl_read_v1) |
| 19 | mov %o1, %o3 |
| 20 | mov %o2, %o4 |
| 21 | mov HV_FAST_RNG_CTL_READ, %o5 |
| 22 | ta HV_FAST_TRAP |
| 23 | stx %o1, [%o3] |
| 24 | retl |
| 25 | stx %o2, [%o4] |
| 26 | ENDPROC(sun4v_rng_ctl_read_v1) |
| 27 | |
| 28 | ENTRY(sun4v_rng_ctl_read_v2) |
| 29 | save %sp, -192, %sp |
| 30 | mov %i0, %o0 |
| 31 | mov %i1, %o1 |
| 32 | mov HV_FAST_RNG_CTL_READ, %o5 |
| 33 | ta HV_FAST_TRAP |
| 34 | stx %o1, [%i2] |
| 35 | stx %o2, [%i3] |
| 36 | stx %o3, [%i4] |
| 37 | stx %o4, [%i5] |
| 38 | ret |
| 39 | restore %g0, %o0, %o0 |
| 40 | ENDPROC(sun4v_rng_ctl_read_v2) |
| 41 | |
| 42 | ENTRY(sun4v_rng_ctl_write_v1) |
| 43 | mov %o3, %o4 |
| 44 | mov HV_FAST_RNG_CTL_WRITE, %o5 |
| 45 | ta HV_FAST_TRAP |
| 46 | retl |
| 47 | stx %o1, [%o4] |
| 48 | ENDPROC(sun4v_rng_ctl_write_v1) |
| 49 | |
| 50 | ENTRY(sun4v_rng_ctl_write_v2) |
| 51 | mov HV_FAST_RNG_CTL_WRITE, %o5 |
| 52 | ta HV_FAST_TRAP |
| 53 | retl |
| 54 | nop |
| 55 | ENDPROC(sun4v_rng_ctl_write_v2) |
| 56 | |
| 57 | ENTRY(sun4v_rng_data_read_diag_v1) |
| 58 | mov %o2, %o4 |
| 59 | mov HV_FAST_RNG_DATA_READ_DIAG, %o5 |
| 60 | ta HV_FAST_TRAP |
| 61 | retl |
| 62 | stx %o1, [%o4] |
| 63 | ENDPROC(sun4v_rng_data_read_diag_v1) |
| 64 | |
| 65 | ENTRY(sun4v_rng_data_read_diag_v2) |
| 66 | mov %o3, %o4 |
| 67 | mov HV_FAST_RNG_DATA_READ_DIAG, %o5 |
| 68 | ta HV_FAST_TRAP |
| 69 | retl |
| 70 | stx %o1, [%o4] |
| 71 | ENDPROC(sun4v_rng_data_read_diag_v2) |
| 72 | |
| 73 | ENTRY(sun4v_rng_data_read) |
| 74 | mov %o1, %o4 |
| 75 | mov HV_FAST_RNG_DATA_READ, %o5 |
| 76 | ta HV_FAST_TRAP |
| 77 | retl |
| 78 | stx %o1, [%o4] |
| 79 | ENDPROC(sun4v_rng_data_read) |