xtensa: drop unused coprocessor helper functions (3ffc2df9) · Commits · 戴 / test

arch/xtensa/include/asm/coprocessor.h

+0 −3

Original line number	Diff line number	Diff line
		@@ -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*);

arch/xtensa/kernel/coprocessor.S

+3 −65

Original line number	Diff line number	Diff line
		@@ -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)
		* a2 a3
		* coprocessor_restore(struct task_info*, index)
		* coprocessor_flush(struct thread_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:
		*

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