1#ifndef __NOUVEAU_GRCTX_H__
  2#define __NOUVEAU_GRCTX_H__
  3
  4struct nouveau_grctx {
  5	struct drm_device *dev;
  6
  7	enum {
  8		NOUVEAU_GRCTX_PROG,
  9		NOUVEAU_GRCTX_VALS
 10	} mode;
 11	void *data;
 12
 13	uint32_t ctxprog_max;
 14	uint32_t ctxprog_len;
 15	uint32_t ctxprog_reg;
 16	int      ctxprog_label[32];
 17	uint32_t ctxvals_pos;
 18	uint32_t ctxvals_base;
 19};
 20
 21#ifdef CP_CTX
 22static inline void
 23cp_out(struct nouveau_grctx *ctx, uint32_t inst)
 24{
 25	uint32_t *ctxprog = ctx->data;
 26
 27	if (ctx->mode != NOUVEAU_GRCTX_PROG)
 28		return;
 29
 30	BUG_ON(ctx->ctxprog_len == ctx->ctxprog_max);
 31	ctxprog[ctx->ctxprog_len++] = inst;
 32}
 33
 34static inline void
 35cp_lsr(struct nouveau_grctx *ctx, uint32_t val)
 36{
 37	cp_out(ctx, CP_LOAD_SR | val);
 38}
 39
 40static inline void
 41cp_ctx(struct nouveau_grctx *ctx, uint32_t reg, uint32_t length)
 42{
 43	ctx->ctxprog_reg = (reg - 0x00400000) >> 2;
 44
 45	ctx->ctxvals_base = ctx->ctxvals_pos;
 46	ctx->ctxvals_pos = ctx->ctxvals_base + length;
 47
 48	if (length > (CP_CTX_COUNT >> CP_CTX_COUNT_SHIFT)) {
 49		cp_lsr(ctx, length);
 50		length = 0;
 51	}
 52
 53	cp_out(ctx, CP_CTX | (length << CP_CTX_COUNT_SHIFT) | ctx->ctxprog_reg);
 54}
 55
 56static inline void
 57cp_name(struct nouveau_grctx *ctx, int name)
 58{
 59	uint32_t *ctxprog = ctx->data;
 60	int i;
 61
 62	if (ctx->mode != NOUVEAU_GRCTX_PROG)
 63		return;
 64
 65	ctx->ctxprog_label[name] = ctx->ctxprog_len;
 66	for (i = 0; i < ctx->ctxprog_len; i++) {
 67		if ((ctxprog[i] & 0xfff00000) != 0xff400000)
 68			continue;
 69		if ((ctxprog[i] & CP_BRA_IP) != ((name) << CP_BRA_IP_SHIFT))
 70			continue;
 71		ctxprog[i] = (ctxprog[i] & 0x00ff00ff) |
 72			     (ctx->ctxprog_len << CP_BRA_IP_SHIFT);
 73	}
 74}
 75
 76static inline void
 77_cp_bra(struct nouveau_grctx *ctx, u32 mod, int flag, int state, int name)
 78{
 79	int ip = 0;
 80
 81	if (mod != 2) {
 82		ip = ctx->ctxprog_label[name] << CP_BRA_IP_SHIFT;
 83		if (ip == 0)
 84			ip = 0xff000000 | (name << CP_BRA_IP_SHIFT);
 85	}
 86
 87	cp_out(ctx, CP_BRA | (mod << 18) | ip | flag |
 88		    (state ? 0 : CP_BRA_IF_CLEAR));
 89}
 90#define cp_bra(c, f, s, n) _cp_bra((c), 0, CP_FLAG_##f, CP_FLAG_##f##_##s, n)
 91#ifdef CP_BRA_MOD
 92#define cp_cal(c, f, s, n) _cp_bra((c), 1, CP_FLAG_##f, CP_FLAG_##f##_##s, n)
 93#define cp_ret(c, f, s) _cp_bra((c), 2, CP_FLAG_##f, CP_FLAG_##f##_##s, 0)
 94#endif
 95
 96static inline void
 97_cp_wait(struct nouveau_grctx *ctx, int flag, int state)
 98{
 99	cp_out(ctx, CP_WAIT | flag | (state ? CP_WAIT_SET : 0));
100}
101#define cp_wait(c, f, s) _cp_wait((c), CP_FLAG_##f, CP_FLAG_##f##_##s)
102
103static inline void
104_cp_set(struct nouveau_grctx *ctx, int flag, int state)
105{
106	cp_out(ctx, CP_SET | flag | (state ? CP_SET_1 : 0));
107}
108#define cp_set(c, f, s) _cp_set((c), CP_FLAG_##f, CP_FLAG_##f##_##s)
109
110static inline void
111cp_pos(struct nouveau_grctx *ctx, int offset)
112{
113	ctx->ctxvals_pos = offset;
114	ctx->ctxvals_base = ctx->ctxvals_pos;
115
116	cp_lsr(ctx, ctx->ctxvals_pos);
117	cp_out(ctx, CP_SET_CONTEXT_POINTER);
118}
119
120static inline void
121gr_def(struct nouveau_grctx *ctx, uint32_t reg, uint32_t val)
122{
123	if (ctx->mode != NOUVEAU_GRCTX_VALS)
124		return;
125
126	reg = (reg - 0x00400000) / 4;
127	reg = (reg - ctx->ctxprog_reg) + ctx->ctxvals_base;
128
129	nv_wo32(ctx->data, reg * 4, val);
130}
131#endif
132
133#endif