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| author | Max Filippov <jcmvbkbc@gmail.com> | 2018-11-26 22:15:21 +0100 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2018-12-03 10:39:23 +0100 |
| commit | 3ffc2df9c76d3e1e02367dc3361902c1e9870b5d (patch) | |
| tree | 7e49b900d9c7b7d923864ecde359038908bbc6d5 | |
| parent | xtensa: drop custom PTRACE_{PEEK,POKE}{TEXT,DATA} (diff) | |
| download | linux-3ffc2df9c76d3e1e02367dc3361902c1e9870b5d.tar.xz linux-3ffc2df9c76d3e1e02367dc3361902c1e9870b5d.zip | |
xtensa: drop unused coprocessor helper functions
coprocessor_save, coprocessor_load and coprocessor_restore are neither
used nor exported for use by modules. Drop them.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
| -rw-r--r-- | arch/xtensa/include/asm/coprocessor.h | 3 | ||||
| -rw-r--r-- | arch/xtensa/kernel/coprocessor.S | 68 |
2 files changed, 3 insertions, 68 deletions
diff --git a/arch/xtensa/include/asm/coprocessor.h b/arch/xtensa/include/asm/coprocessor.h index 677501b32dfc..eafe986a0246 100644 --- a/arch/xtensa/include/asm/coprocessor.h +++ b/arch/xtensa/include/asm/coprocessor.h @@ -157,10 +157,7 @@ typedef struct { XCHAL_CP7_SA_LIST(2) } xtregs_cp7_t __attribute__ ((aligned (XCHAL_CP7_SA_ALIGN))); extern struct thread_info* coprocessor_owner[XCHAL_CP_MAX]; -extern void coprocessor_save(void*, int); -extern void coprocessor_load(void*, int); extern void coprocessor_flush(struct thread_info*, int); -extern void coprocessor_restore(struct thread_info*, int); extern void coprocessor_release_all(struct thread_info*); extern void coprocessor_flush_all(struct thread_info*); diff --git a/arch/xtensa/kernel/coprocessor.S b/arch/xtensa/kernel/coprocessor.S index 4f8b52d575a2..43091429363d 100644 --- a/arch/xtensa/kernel/coprocessor.S +++ b/arch/xtensa/kernel/coprocessor.S @@ -105,63 +105,17 @@ LOAD_CP_REGS_TAB(7) /* - * coprocessor_save(buffer, index) - * a2 a3 - * coprocessor_load(buffer, index) - * a2 a3 - * - * Save or load coprocessor registers for coprocessor 'index'. - * The register values are saved to or loaded from them 'buffer' address. - * - * Note that these functions don't update the coprocessor_owner information! - * - */ - -ENTRY(coprocessor_save) - - entry a1, 32 - s32i a0, a1, 0 - movi a0, .Lsave_cp_regs_jump_table - addx8 a3, a3, a0 - l32i a3, a3, 0 - beqz a3, 1f - add a0, a0, a3 - callx0 a0 -1: l32i a0, a1, 0 - retw - -ENDPROC(coprocessor_save) - -ENTRY(coprocessor_load) - - entry a1, 32 - s32i a0, a1, 0 - movi a0, .Lload_cp_regs_jump_table - addx4 a3, a3, a0 - l32i a3, a3, 0 - beqz a3, 1f - add a0, a0, a3 - callx0 a0 -1: l32i a0, a1, 0 - retw - -ENDPROC(coprocessor_load) - -/* - * coprocessor_flush(struct task_info*, index) + * coprocessor_flush(struct thread_info*, index) * a2 a3 - * coprocessor_restore(struct task_info*, index) - * a2 a3 * - * Save or load coprocessor registers for coprocessor 'index'. + * Save coprocessor registers for coprocessor 'index'. * The register values are saved to or loaded from the coprocessor area * inside the task_info structure. * - * Note that these functions don't update the coprocessor_owner information! + * Note that this function doesn't update the coprocessor_owner information! * */ - ENTRY(coprocessor_flush) entry a1, 32 @@ -179,22 +133,6 @@ ENTRY(coprocessor_flush) ENDPROC(coprocessor_flush) -ENTRY(coprocessor_restore) - entry a1, 32 - s32i a0, a1, 0 - movi a0, .Lload_cp_regs_jump_table - addx4 a3, a3, a0 - l32i a4, a3, 4 - l32i a3, a3, 0 - add a2, a2, a4 - beqz a3, 1f - add a0, a0, a3 - callx0 a0 -1: l32i a0, a1, 0 - retw - -ENDPROC(coprocessor_restore) - /* * Entry condition: * |