diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-22 17:12:37 +1000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-22 17:12:37 +1000 |
commit | 8725f25acc656c1522d48a6746055099efdaca4c (patch) | |
tree | e241424fa58178ed6c2a95a4eb931ea83dbea33c /drivers/char/hw_random/n2-asm.S | |
parent | c69cccc95fe4b90dde5fe33e6a3b77880b534fa4 (diff) | |
parent | 93ded9b8fd42abe2c3607097963d8de6ad9117eb (diff) |
Merge commit 'origin/master'
Manually fixed up:
drivers/net/fs_enet/fs_enet-main.c
Diffstat (limited to 'drivers/char/hw_random/n2-asm.S')
-rw-r--r-- | drivers/char/hw_random/n2-asm.S | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/char/hw_random/n2-asm.S b/drivers/char/hw_random/n2-asm.S new file mode 100644 index 000000000000..9b6eb5cd59f6 --- /dev/null +++ b/drivers/char/hw_random/n2-asm.S @@ -0,0 +1,79 @@ +/* n2-asm.S: Niagara2 RNG hypervisor call assembler. + * + * Copyright (C) 2008 David S. Miller <davem@davemloft.net> + */ +#include <linux/linkage.h> +#include <asm/hypervisor.h> +#include "n2rng.h" + + .text + +ENTRY(sun4v_rng_get_diag_ctl) + mov HV_FAST_RNG_GET_DIAG_CTL, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_rng_get_diag_ctl) + +ENTRY(sun4v_rng_ctl_read_v1) + mov %o1, %o3 + mov %o2, %o4 + mov HV_FAST_RNG_CTL_READ, %o5 + ta HV_FAST_TRAP + stx %o1, [%o3] + retl + stx %o2, [%o4] +ENDPROC(sun4v_rng_ctl_read_v1) + +ENTRY(sun4v_rng_ctl_read_v2) + save %sp, -192, %sp + mov %i0, %o0 + mov %i1, %o1 + mov HV_FAST_RNG_CTL_READ, %o5 + ta HV_FAST_TRAP + stx %o1, [%i2] + stx %o2, [%i3] + stx %o3, [%i4] + stx %o4, [%i5] + ret + restore %g0, %o0, %o0 +ENDPROC(sun4v_rng_ctl_read_v2) + +ENTRY(sun4v_rng_ctl_write_v1) + mov %o3, %o4 + mov HV_FAST_RNG_CTL_WRITE, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_ctl_write_v1) + +ENTRY(sun4v_rng_ctl_write_v2) + mov HV_FAST_RNG_CTL_WRITE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_rng_ctl_write_v2) + +ENTRY(sun4v_rng_data_read_diag_v1) + mov %o2, %o4 + mov HV_FAST_RNG_DATA_READ_DIAG, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_data_read_diag_v1) + +ENTRY(sun4v_rng_data_read_diag_v2) + mov %o3, %o4 + mov HV_FAST_RNG_DATA_READ_DIAG, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_data_read_diag_v2) + +ENTRY(sun4v_rng_data_read) + mov %o1, %o4 + mov HV_FAST_RNG_DATA_READ, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_data_read) |