diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_grctx.h')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_grctx.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_grctx.h b/drivers/gpu/drm/nouveau/nouveau_grctx.h new file mode 100644 index 0000000..5d39c4c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_grctx.h @@ -0,0 +1,133 @@ +#ifndef __NOUVEAU_GRCTX_H__ +#define __NOUVEAU_GRCTX_H__ + +struct nouveau_grctx { + struct drm_device *dev; + + enum { + NOUVEAU_GRCTX_PROG, + NOUVEAU_GRCTX_VALS + } mode; + void *data; + + uint32_t ctxprog_max; + uint32_t ctxprog_len; + uint32_t ctxprog_reg; + int ctxprog_label[32]; + uint32_t ctxvals_pos; + uint32_t ctxvals_base; +}; + +#ifdef CP_CTX +static inline void +cp_out(struct nouveau_grctx *ctx, uint32_t inst) +{ + uint32_t *ctxprog = ctx->data; + + if (ctx->mode != NOUVEAU_GRCTX_PROG) + return; + + BUG_ON(ctx->ctxprog_len == ctx->ctxprog_max); + ctxprog[ctx->ctxprog_len++] = inst; +} + +static inline void +cp_lsr(struct nouveau_grctx *ctx, uint32_t val) +{ + cp_out(ctx, CP_LOAD_SR | val); +} + +static inline void +cp_ctx(struct nouveau_grctx *ctx, uint32_t reg, uint32_t length) +{ + ctx->ctxprog_reg = (reg - 0x00400000) >> 2; + + ctx->ctxvals_base = ctx->ctxvals_pos; + ctx->ctxvals_pos = ctx->ctxvals_base + length; + + if (length > (CP_CTX_COUNT >> CP_CTX_COUNT_SHIFT)) { + cp_lsr(ctx, length); + length = 0; + } + + cp_out(ctx, CP_CTX | (length << CP_CTX_COUNT_SHIFT) | ctx->ctxprog_reg); +} + +static inline void +cp_name(struct nouveau_grctx *ctx, int name) +{ + uint32_t *ctxprog = ctx->data; + int i; + + if (ctx->mode != NOUVEAU_GRCTX_PROG) + return; + + ctx->ctxprog_label[name] = ctx->ctxprog_len; + for (i = 0; i < ctx->ctxprog_len; i++) { + if ((ctxprog[i] & 0xfff00000) != 0xff400000) + continue; + if ((ctxprog[i] & CP_BRA_IP) != ((name) << CP_BRA_IP_SHIFT)) + continue; + ctxprog[i] = (ctxprog[i] & 0x00ff00ff) | + (ctx->ctxprog_len << CP_BRA_IP_SHIFT); + } +} + +static inline void +_cp_bra(struct nouveau_grctx *ctx, u32 mod, int flag, int state, int name) +{ + int ip = 0; + + if (mod != 2) { + ip = ctx->ctxprog_label[name] << CP_BRA_IP_SHIFT; + if (ip == 0) + ip = 0xff000000 | (name << CP_BRA_IP_SHIFT); + } + + cp_out(ctx, CP_BRA | (mod << 18) | ip | flag | + (state ? 0 : CP_BRA_IF_CLEAR)); +} +#define cp_bra(c,f,s,n) _cp_bra((c), 0, CP_FLAG_##f, CP_FLAG_##f##_##s, n) +#ifdef CP_BRA_MOD +#define cp_cal(c,f,s,n) _cp_bra((c), 1, CP_FLAG_##f, CP_FLAG_##f##_##s, n) +#define cp_ret(c,f,s) _cp_bra((c), 2, CP_FLAG_##f, CP_FLAG_##f##_##s, 0) +#endif + +static inline void +_cp_wait(struct nouveau_grctx *ctx, int flag, int state) +{ + cp_out(ctx, CP_WAIT | flag | (state ? CP_WAIT_SET : 0)); +} +#define cp_wait(c,f,s) _cp_wait((c), CP_FLAG_##f, CP_FLAG_##f##_##s) + +static inline void +_cp_set(struct nouveau_grctx *ctx, int flag, int state) +{ + cp_out(ctx, CP_SET | flag | (state ? CP_SET_1 : 0)); +} +#define cp_set(c,f,s) _cp_set((c), CP_FLAG_##f, CP_FLAG_##f##_##s) + +static inline void +cp_pos(struct nouveau_grctx *ctx, int offset) +{ + ctx->ctxvals_pos = offset; + ctx->ctxvals_base = ctx->ctxvals_pos; + + cp_lsr(ctx, ctx->ctxvals_pos); + cp_out(ctx, CP_SET_CONTEXT_POINTER); +} + +static inline void +gr_def(struct nouveau_grctx *ctx, uint32_t reg, uint32_t val) +{ + if (ctx->mode != NOUVEAU_GRCTX_VALS) + return; + + reg = (reg - 0x00400000) / 4; + reg = (reg - ctx->ctxprog_reg) + ctx->ctxvals_base; + + nv_wo32(ctx->dev, ctx->data, reg, val); +} +#endif + +#endif |