Unverified Commit 27fb2719 authored by Icenowy Zheng's avatar Icenowy Zheng Committed by Palmer Dabbelt
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riscv: errata: prefix T-Head mnemonics with th. 

T-Head now maintains some specification for their extended instructions
at [1], in which all instructions are prefixed "th.".

Follow this practice in the kernel comments.

Link: https://github.com/T-head-Semi/thead-extension-spec

 [1]
Signed-off-by: default avatarIcenowy Zheng <uwu@icenowy.me>
Reviewed-by: default avatarGuo Ren <guoren@kernel.org>
Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 8eb8fe67

arch/riscv/include/asm/errata_list.h

+7 −7
Original line number Diff line number Diff line
@@ -95,25 +95,25 @@ asm volatile(ALTERNATIVE( \ 
#endif



/*

 * dcache.ipa rs1 (invalidate, physical address)

 * th.dcache.ipa rs1 (invalidate, physical address)

 * | 31 - 25 | 24 - 20 | 19 - 15 | 14 - 12 | 11 - 7 | 6 - 0 |

 *   0000001    01010      rs1       000      00000  0001011

 * dache.iva rs1 (invalida, virtual address)

 * th.dache.iva rs1 (invalida, virtual address)

 *   0000001    00110      rs1       000      00000  0001011

 *

 * dcache.cpa rs1 (clean, physical address)

 * th.dcache.cpa rs1 (clean, physical address)

 * | 31 - 25 | 24 - 20 | 19 - 15 | 14 - 12 | 11 - 7 | 6 - 0 |

 *   0000001    01001      rs1       000      00000  0001011

 * dcache.cva rs1 (clean, virtual address)

 * th.dcache.cva rs1 (clean, virtual address)

 *   0000001    00101      rs1       000      00000  0001011

 *

 * dcache.cipa rs1 (clean then invalidate, physical address)

 * th.dcache.cipa rs1 (clean then invalidate, physical address)

 * | 31 - 25 | 24 - 20 | 19 - 15 | 14 - 12 | 11 - 7 | 6 - 0 |

 *   0000001    01011      rs1       000      00000  0001011

 * dcache.civa rs1 (... virtual address)

 * th.dcache.civa rs1 (... virtual address)

 *   0000001    00111      rs1       000      00000  0001011

 *

 * sync.s (make sure all cache operations finished)

 * th.sync.s (make sure all cache operations finished)

 * | 31 - 25 | 24 - 20 | 19 - 15 | 14 - 12 | 11 - 7 | 6 - 0 |

 *   0000000    11001     00000      000      00000  0001011

 */