Lines Matching +full:alternative +full:- +full:b

1 /* SPDX-License-Identifier: GPL-2.0 */
6  * Each alternative comes with a 32 bit feature field:
17  * in which context an alternative is supposed to be applied to the
20  * - from the decompressor before the kernel itself is executed
21  * - from early kernel code from within the kernel
24  * specific alternative patching.
27  * alternative should be applied.
67 			u32 type : 8;  /* type of alternative */
89  * +---------------------------------+
92  * +---------------------------------+
95  * +---------------------------------+
97  * | alternative instr 1	     |
98  * +---------------------------------+
100  * | alternative instr 2	     |
101  * +---------------------------------+
104  * +---------------------------------+
106  * | alternative instr		     |
107  * +---------------------------------+
112 #define oldinstr_len		"662b-661b"
113 #define altinstr_len(num)	e_altinstr(num)"b-"b_altinstr(num)"b"
119 	"\t.long 661b - .\n"			/* old instruction */	\
120 	"\t.long " b_altinstr(num)"b - .\n"	/* alt instruction */	\
123 	"\t.org . - (" oldinstr_len ") & 1\n"				\
124 	"\t.org . - (" oldinstr_len ") + (" altinstr_len(num) ")\n"	\
125 	"\t.org . - (" altinstr_len(num) ") + (" oldinstr_len ")\n"
130 /* alternative assembly primitive: */
131 #define ALTERNATIVE(oldinstr, altinstr, feature) \
152  * Alternative instructions for different CPU types or capabilities.
158  * longer. altinstr is padded with jump and nops at run-time during patching.
163 #define alternative(oldinstr, altinstr, feature)			\
164 	asm_inline volatile(ALTERNATIVE(oldinstr, altinstr, feature) : : : "memory")
170 /* Alternative inline assembly with input. */
172 	asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature)	\
177 	asm_inline volatile(ALTERNATIVE(oldinstr, altinstr, feature)	\
195 	.long	\orig_start - .
196 	.long	\alt_start - .
198 	.byte	\orig_end - \orig_start
199 	.org	. - ( \orig_end - \orig_start ) & 1
200 	.org	. - ( \orig_end - \orig_start ) + ( \alt_end - \alt_start )
201 	.org	. - ( \alt_end - \alt_start ) + ( \orig_end - \orig_start )
205  * Define an alternative between two instructions. If @feature is
209 .macro ALTERNATIVE oldinstr, newinstr, feature
215 	alt_entry 772b, 773b, 770b, 771b, \feature
220  * Define an alternative between two instructions. If @feature is
231 	alt_entry 773b, 774b, 770b, 771b,\feature1
232 	alt_entry 773b, 774b, 771b, 772b,\feature2