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1/* SPDX-License-Identifier: MIT */2#ifndef __NVKM_GRCTX_H__3#define __NVKM_GRCTX_H__4#include <core/gpuobj.h>5 6struct nvkm_grctx {7	struct nvkm_device *device;8 9	enum {10		NVKM_GRCTX_PROG,11		NVKM_GRCTX_VALS12	} mode;13	u32 *ucode;14	struct nvkm_gpuobj *data;15 16	u32 ctxprog_max;17	u32 ctxprog_len;18	u32 ctxprog_reg;19	int ctxprog_label[32];20	u32 ctxvals_pos;21	u32 ctxvals_base;22};23 24static inline void25cp_out(struct nvkm_grctx *ctx, u32 inst)26{27	u32 *ctxprog = ctx->ucode;28 29	if (ctx->mode != NVKM_GRCTX_PROG)30		return;31 32	BUG_ON(ctx->ctxprog_len == ctx->ctxprog_max);33	ctxprog[ctx->ctxprog_len++] = inst;34}35 36static inline void37cp_lsr(struct nvkm_grctx *ctx, u32 val)38{39	cp_out(ctx, CP_LOAD_SR | val);40}41 42static inline void43cp_ctx(struct nvkm_grctx *ctx, u32 reg, u32 length)44{45	ctx->ctxprog_reg = (reg - 0x00400000) >> 2;46 47	ctx->ctxvals_base = ctx->ctxvals_pos;48	ctx->ctxvals_pos = ctx->ctxvals_base + length;49 50	if (length > (CP_CTX_COUNT >> CP_CTX_COUNT_SHIFT)) {51		cp_lsr(ctx, length);52		length = 0;53	}54 55	cp_out(ctx, CP_CTX | (length << CP_CTX_COUNT_SHIFT) | ctx->ctxprog_reg);56}57 58static inline void59cp_name(struct nvkm_grctx *ctx, int name)60{61	u32 *ctxprog = ctx->ucode;62	int i;63 64	if (ctx->mode != NVKM_GRCTX_PROG)65		return;66 67	ctx->ctxprog_label[name] = ctx->ctxprog_len;68	for (i = 0; i < ctx->ctxprog_len; i++) {69		if ((ctxprog[i] & 0xfff00000) != 0xff400000)70			continue;71		if ((ctxprog[i] & CP_BRA_IP) != ((name) << CP_BRA_IP_SHIFT))72			continue;73		ctxprog[i] = (ctxprog[i] & 0x00ff00ff) |74			     (ctx->ctxprog_len << CP_BRA_IP_SHIFT);75	}76}77 78static inline void79_cp_bra(struct nvkm_grctx *ctx, u32 mod, int flag, int state, int name)80{81	int ip = 0;82 83	if (mod != 2) {84		ip = ctx->ctxprog_label[name] << CP_BRA_IP_SHIFT;85		if (ip == 0)86			ip = 0xff000000 | (name << CP_BRA_IP_SHIFT);87	}88 89	cp_out(ctx, CP_BRA | (mod << 18) | ip | flag |90		    (state ? 0 : CP_BRA_IF_CLEAR));91}92#define cp_bra(c, f, s, n) _cp_bra((c), 0, CP_FLAG_##f, CP_FLAG_##f##_##s, n)93#define cp_cal(c, f, s, n) _cp_bra((c), 1, CP_FLAG_##f, CP_FLAG_##f##_##s, n)94#define cp_ret(c, f, s) _cp_bra((c), 2, CP_FLAG_##f, CP_FLAG_##f##_##s, 0)95 96static inline void97_cp_wait(struct nvkm_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 void104_cp_set(struct nvkm_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 void111cp_pos(struct nvkm_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 void121gr_def(struct nvkm_grctx *ctx, u32 reg, u32 val)122{123	if (ctx->mode != NVKM_GRCTX_VALS)124		return;125 126	reg = (reg - 0x00400000) / 4;127	reg = (reg - ctx->ctxprog_reg) + ctx->ctxvals_base;128 129	nvkm_wo32(ctx->data, reg * 4, val);130}131#endif132