[mirror_ubuntu-focal-kernel.git] / arch / sparc / net / bpf_jit.h

#ifndef _BPF_JIT_H
#define _BPF_JIT_H

/* Conventions:
 *  %g1 : temporary
 *  %g2 : Secondary temporary used by SKB data helper stubs.
 *  %g3 : packet offset passed into SKB data helper stubs.
 *  %o0 : pointer to skb (first argument given to JIT function)
 *  %o1 : BPF A accumulator
 *  %o2 : BPF X accumulator
 *  %o3 : Holds saved %o7 so we can call helper functions without needing
 *        to allocate a register window.
 *  %o4 : skb->len - skb->data_len
 *  %o5 : skb->data
 */

#ifndef __ASSEMBLER__
#define G0		0x00
#define G1		0x01
#define G3		0x03
#define G6		0x06
#define O0		0x08
#define O1		0x09
#define O2		0x0a
#define O3		0x0b
#define O4		0x0c
#define O5		0x0d
#define SP		0x0e
#define O7		0x0f
#define FP		0x1e

#define r_SKB		O0
#define r_A		O1
#define r_X		O2
#define r_saved_O7	O3
#define r_HEADLEN	O4
#define r_SKB_DATA	O5
#define r_TMP		G1
#define r_TMP2		G2
#define r_OFF		G3
#else
#define r_SKB		%o0
#define r_A		%o1
#define r_X		%o2
#define r_saved_O7	%o3
#define r_HEADLEN	%o4
#define r_SKB_DATA	%o5
#define r_TMP		%g1
#define r_TMP2		%g2
#define r_OFF		%g3
#endif

#endif /* _BPF_JIT_H */
Commit	Line	Data
2809a208 DM	1	#ifndef _BPF_JIT_H
	2	#define _BPF_JIT_H
	3
	4	/* Conventions:
	5	* %g1 : temporary
	6	* %g2 : Secondary temporary used by SKB data helper stubs.
7b56f76e	7	* %g3 : packet offset passed into SKB data helper stubs.
2809a208 DM	8	* %o0 : pointer to skb (first argument given to JIT function)
	9	* %o1 : BPF A accumulator
	10	* %o2 : BPF X accumulator
	11	* %o3 : Holds saved %o7 so we can call helper functions without needing
	12	* to allocate a register window.
7b56f76e DM	13	* %o4 : skb->len - skb->data_len
7b56f76e DM	14	* %o5 : skb->data
2809a208 DM	15	*/
	16
	17	#ifndef __ASSEMBLER__
	18	#define G0 0x00
	19	#define G1 0x01
	20	#define G3 0x03
	21	#define G6 0x06
	22	#define O0 0x08
	23	#define O1 0x09
	24	#define O2 0x0a
	25	#define O3 0x0b
	26	#define O4 0x0c
	27	#define O5 0x0d
	28	#define SP 0x0e
	29	#define O7 0x0f
	30	#define FP 0x1e
	31
	32	#define r_SKB O0
	33	#define r_A O1
	34	#define r_X O2
	35	#define r_saved_O7 O3
	36	#define r_HEADLEN O4
	37	#define r_SKB_DATA O5
	38	#define r_TMP G1
	39	#define r_TMP2 G2
	40	#define r_OFF G3
	41	#else
	42	#define r_SKB %o0
	43	#define r_A %o1
	44	#define r_X %o2
	45	#define r_saved_O7 %o3
	46	#define r_HEADLEN %o4
	47	#define r_SKB_DATA %o5
	48	#define r_TMP %g1
	49	#define r_TMP2 %g2
	50	#define r_OFF %g3
	51	#endif
	52
	53	#endif /* _BPF_JIT_H */