| 1 | /* SPDX-License-Identifier: GPL-2.0 */
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| 2 | /* NG4patch.S: Patch Ultra-I routines with Niagara-4 variant.
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| 3 | *
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| 4 | * Copyright (C) 2012 David S. Miller <davem@davemloft.net>
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| 5 | */
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| 6 |
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| 7 | |
| 8 |
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| 9 | |
| 10 | |
| 11 | |
| 12 | sethi %hi(NEW), %g1; \
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| 13 | or %g1, %lo(NEW), %g1; \
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| 14 | sethi %hi(OLD), %g2; \
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| 15 | or %g2, %lo(OLD), %g2; \
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| 16 | sub %g1, %g2, %g1; \
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| 17 | sethi %hi(BRANCH_ALWAYS), %g3; \
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| 18 | sll %g1, 11, %g1; \
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| 19 | srl %g1, 11 + 2, %g1; \
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| 20 | or %g3, %lo(BRANCH_ALWAYS), %g3; \
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| 21 | or %g3, %g1, %g3; \
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| 22 | stw %g3, [%g2]; \
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| 23 | sethi %hi(NOP), %g3; \
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| 24 | or %g3, %lo(NOP), %g3; \
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| 25 | stw %g3, [%g2 + 0x4]; \
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| 26 | flush %g2;
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| 27 |
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| 28 | .globl niagara4_patch_copyops
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| 29 | .type niagara4_patch_copyops, |
| 30 | niagara4_patch_copyops:
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| 31 | NG_DO_PATCH(memcpy, NG4memcpy)
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| 32 | NG_DO_PATCH(raw_copy_from_user, NG4copy_from_user)
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| 33 | NG_DO_PATCH(raw_copy_to_user, NG4copy_to_user)
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| 34 | retl
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| 35 | nop
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| 36 | .size niagara4_patch_copyops,.-niagara4_patch_copyops
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| 37 |
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| 38 | .globl niagara4_patch_bzero
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| 39 | .type niagara4_patch_bzero, |
| 40 | niagara4_patch_bzero:
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| 41 | NG_DO_PATCH(memset, NG4memset)
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| 42 | NG_DO_PATCH(__bzero, NG4bzero)
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| 43 | NG_DO_PATCH(__clear_user, NGclear_user)
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| 44 | NG_DO_PATCH(tsb_init, NGtsb_init)
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| 45 | retl
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| 46 | nop
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| 47 | .size niagara4_patch_bzero,.-niagara4_patch_bzero
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| 48 |
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| 49 | .globl niagara4_patch_pageops
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| 50 | .type niagara4_patch_pageops, |
| 51 | niagara4_patch_pageops:
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| 52 | NG_DO_PATCH(copy_user_page, NG4copy_user_page)
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| 53 | NG_DO_PATCH(_clear_page, NG4clear_page)
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| 54 | NG_DO_PATCH(clear_user_page, NG4clear_user_page)
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| 55 | retl
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| 56 | nop
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| 57 | .size niagara4_patch_pageops,.-niagara4_patch_pageops
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| 58 |
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| 59 | ENTRY(niagara4_patch_fls)
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| 60 | NG_DO_PATCH(fls, NG4fls)
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| 61 | NG_DO_PATCH(__fls, __NG4fls)
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| 62 | retl
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| 63 | nop
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| 64 | ENDPROC(niagara4_patch_fls)
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