| 1 | /*
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| 2 | * M7patch.S: Patch generic routines with M7 variant.
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| 3 | *
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| 4 | * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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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 | ENTRY(m7_patch_copyops)
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| 29 | NG_DO_PATCH(memcpy, M7memcpy)
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| 30 | NG_DO_PATCH(raw_copy_from_user, M7copy_from_user)
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| 31 | NG_DO_PATCH(raw_copy_to_user, M7copy_to_user)
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| 32 | retl
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| 33 | nop
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| 34 | ENDPROC(m7_patch_copyops)
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| 35 |
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| 36 | ENTRY(m7_patch_bzero)
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| 37 | NG_DO_PATCH(memset, M7memset)
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| 38 | NG_DO_PATCH(__bzero, M7bzero)
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| 39 | NG_DO_PATCH(__clear_user, NGclear_user)
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| 40 | NG_DO_PATCH(tsb_init, NGtsb_init)
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| 41 | retl
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| 42 | nop
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| 43 | ENDPROC(m7_patch_bzero)
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| 44 |
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| 45 | ENTRY(m7_patch_pageops)
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| 46 | NG_DO_PATCH(copy_user_page, NG4copy_user_page)
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| 47 | NG_DO_PATCH(_clear_page, M7clear_page)
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| 48 | NG_DO_PATCH(clear_user_page, M7clear_user_page)
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| 49 | retl
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| 50 | nop
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| 51 | ENDPROC(m7_patch_pageops)
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