/*
 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Authors:
 *    Rob Clark <robclark@freedesktop.org>
 */

#include "pipe/p_state.h"
#include "util/format/u_format.h"
#include "util/u_inlines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_string.h"

#include "freedreno_program.h"

#include "fd3_emit.h"
#include "fd3_format.h"
#include "fd3_program.h"
#include "fd3_texture.h"

bool
fd3_needs_manual_clipping(const struct ir3_shader *shader,
                          const struct pipe_rasterizer_state *rast)
{
   uint64_t outputs = ir3_shader_outputs(shader);

   return (!rast->depth_clip_near ||
           util_bitcount(rast->clip_plane_enable) > 6 ||
           outputs & ((1ULL << VARYING_SLOT_CLIP_VERTEX) |
                      (1ULL << VARYING_SLOT_CLIP_DIST0) |
                      (1ULL << VARYING_SLOT_CLIP_DIST1)));
}

static void
emit_shader(struct fd_ringbuffer *ring, const struct ir3_shader_variant *so)
{
   const struct ir3_info *si = &so->info;
   enum adreno_state_block sb;
   enum adreno_state_src src;
   uint32_t i, sz, *bin;

   if (so->type == MESA_SHADER_VERTEX) {
      sb = SB_VERT_SHADER;
   } else {
      sb = SB_FRAG_SHADER;
   }

   if (FD_DBG(DIRECT)) {
      sz = si->sizedwords;
      src = SS_DIRECT;
      bin = fd_bo_map(so->bo);
   } else {
      sz = 0;
      src = SS_INDIRECT;
      bin = NULL;
   }

   OUT_PKT3(ring, CP_LOAD_STATE, 2 + sz);
   OUT_RING(ring, CP_LOAD_STATE_0_DST_OFF(0) | CP_LOAD_STATE_0_STATE_SRC(src) |
                     CP_LOAD_STATE_0_STATE_BLOCK(sb) |
                     CP_LOAD_STATE_0_NUM_UNIT(so->instrlen));
   if (bin) {
      OUT_RING(ring, CP_LOAD_STATE_1_EXT_SRC_ADDR(0) |
                        CP_LOAD_STATE_1_STATE_TYPE(ST_SHADER));
   } else {
      OUT_RELOC(ring, so->bo, 0, CP_LOAD_STATE_1_STATE_TYPE(ST_SHADER), 0);
   }
   for (i = 0; i < sz; i++) {
      OUT_RING(ring, bin[i]);
   }
}

void
fd3_program_emit(struct fd_ringbuffer *ring, struct fd3_emit *emit, int nr,
                 struct pipe_surface **bufs)
{
   const struct ir3_shader_variant *vp, *fp;
   const struct ir3_info *vsi, *fsi;
   enum a3xx_instrbuffermode fpbuffer, vpbuffer;
   uint32_t fpbuffersz, vpbuffersz, fsoff;
   uint32_t pos_regid, posz_regid, psize_regid;
   uint32_t ij_regid[4], face_regid, coord_regid, zwcoord_regid;
   uint32_t color_regid[4] = {0};
   int constmode;
   int i, j;

   assert(nr <= ARRAY_SIZE(color_regid));

   vp = fd3_emit_get_vp(emit);
   fp = fd3_emit_get_fp(emit);

   vsi = &vp->info;
   fsi = &fp->info;

   fpbuffer = BUFFER;
   vpbuffer = BUFFER;
   fpbuffersz = fp->instrlen;
   vpbuffersz = vp->instrlen;

   /*
    * Decide whether to use BUFFER or CACHE mode for VS and FS.  It
    * appears like 256 is the hard limit, but when the combined size
    * exceeds 128 then blob will try to keep FS in BUFFER mode and
    * switch to CACHE for VS until VS is too large.  The blob seems
    * to switch FS out of BUFFER mode at slightly under 128.  But
    * a bit fuzzy on the decision tree, so use slightly conservative
    * limits.
    *
    * TODO check if these thresholds for BUFFER vs CACHE mode are the
    *      same for all a3xx or whether we need to consider the gpuid
    */

   if ((fpbuffersz + vpbuffersz) > 128) {
      if (fpbuffersz < 112) {
         /* FP:BUFFER   VP:CACHE  */
         vpbuffer = CACHE;
         vpbuffersz = 256 - fpbuffersz;
      } else if (vpbuffersz < 112) {
         /* FP:CACHE    VP:BUFFER */
         fpbuffer = CACHE;
         fpbuffersz = 256 - vpbuffersz;
      } else {
         /* FP:CACHE    VP:CACHE  */
         vpbuffer = fpbuffer = CACHE;
         vpbuffersz = fpbuffersz = 192;
      }
   }

   if (fpbuffer == BUFFER) {
      fsoff = 128 - fpbuffersz;
   } else {
      fsoff = 256 - fpbuffersz;
   }

   /* seems like vs->constlen + fs->constlen > 256, then CONSTMODE=1 */
   constmode = ((vp->constlen + fp->constlen) > 256) ? 1 : 0;

   pos_regid = ir3_find_output_regid(vp, VARYING_SLOT_POS);
   posz_regid = ir3_find_output_regid(fp, FRAG_RESULT_DEPTH);
   psize_regid = ir3_find_output_regid(vp, VARYING_SLOT_PSIZ);
   if (fp->color0_mrt) {
      color_regid[0] = color_regid[1] = color_regid[2] = color_regid[3] =
         ir3_find_output_regid(fp, FRAG_RESULT_COLOR);
   } else {
      color_regid[0] = ir3_find_output_regid(fp, FRAG_RESULT_DATA0);
      color_regid[1] = ir3_find_output_regid(fp, FRAG_RESULT_DATA1);
      color_regid[2] = ir3_find_output_regid(fp, FRAG_RESULT_DATA2);
      color_regid[3] = ir3_find_output_regid(fp, FRAG_RESULT_DATA3);
   }

   face_regid = ir3_find_sysval_regid(fp, SYSTEM_VALUE_FRONT_FACE);
   coord_regid = ir3_find_sysval_regid(fp, SYSTEM_VALUE_FRAG_COORD);
   zwcoord_regid =
      (coord_regid == regid(63, 0)) ? regid(63, 0) : (coord_regid + 2);
   ij_regid[0] =
      ir3_find_sysval_regid(fp, SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL);
   ij_regid[1] =
      ir3_find_sysval_regid(fp, SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL);
   ij_regid[2] =
      ir3_find_sysval_regid(fp, SYSTEM_VALUE_BARYCENTRIC_PERSP_CENTROID);
   ij_regid[3] =
      ir3_find_sysval_regid(fp, SYSTEM_VALUE_BARYCENTRIC_LINEAR_CENTROID);

   /* adjust regids for alpha output formats. there is no alpha render
    * format, so it's just treated like red
    */
   for (i = 0; i < nr; i++)
      if (util_format_is_alpha(pipe_surface_format(bufs[i])))
         color_regid[i] += 3;

   /* we could probably divide this up into things that need to be
    * emitted if frag-prog is dirty vs if vert-prog is dirty..
    */

   OUT_PKT0(ring, REG_A3XX_HLSQ_CONTROL_0_REG, 6);
   OUT_RING(ring, A3XX_HLSQ_CONTROL_0_REG_FSTHREADSIZE(FOUR_QUADS) |
                     A3XX_HLSQ_CONTROL_0_REG_FSSUPERTHREADENABLE |
                     A3XX_HLSQ_CONTROL_0_REG_CONSTMODE(constmode) |
                     /* NOTE:  I guess SHADERRESTART and CONSTFULLUPDATE maybe
                      * flush some caches? I think we only need to set those
                      * bits if we have updated const or shader..
                      */
                     A3XX_HLSQ_CONTROL_0_REG_SPSHADERRESTART |
                     A3XX_HLSQ_CONTROL_0_REG_SPCONSTFULLUPDATE);
   OUT_RING(ring, A3XX_HLSQ_CONTROL_1_REG_VSTHREADSIZE(TWO_QUADS) |
                     A3XX_HLSQ_CONTROL_1_REG_VSSUPERTHREADENABLE |
                     A3XX_HLSQ_CONTROL_1_REG_FRAGCOORDXYREGID(coord_regid) |
                     A3XX_HLSQ_CONTROL_1_REG_FRAGCOORDZWREGID(zwcoord_regid));
   OUT_RING(ring, A3XX_HLSQ_CONTROL_2_REG_PRIMALLOCTHRESHOLD(31) |
                     A3XX_HLSQ_CONTROL_2_REG_FACENESSREGID(face_regid));
   OUT_RING(ring,
            A3XX_HLSQ_CONTROL_3_REG_IJPERSPCENTERREGID(ij_regid[0]) |
               A3XX_HLSQ_CONTROL_3_REG_IJNONPERSPCENTERREGID(ij_regid[1]) |
               A3XX_HLSQ_CONTROL_3_REG_IJPERSPCENTROIDREGID(ij_regid[2]) |
               A3XX_HLSQ_CONTROL_3_REG_IJNONPERSPCENTROIDREGID(ij_regid[3]));
   OUT_RING(ring, A3XX_HLSQ_VS_CONTROL_REG_CONSTLENGTH(vp->constlen) |
                     A3XX_HLSQ_VS_CONTROL_REG_CONSTSTARTOFFSET(0) |
                     A3XX_HLSQ_VS_CONTROL_REG_INSTRLENGTH(vpbuffersz));
   OUT_RING(ring, A3XX_HLSQ_FS_CONTROL_REG_CONSTLENGTH(fp->constlen) |
                     A3XX_HLSQ_FS_CONTROL_REG_CONSTSTARTOFFSET(128) |
                     A3XX_HLSQ_FS_CONTROL_REG_INSTRLENGTH(fpbuffersz));

   OUT_PKT0(ring, REG_A3XX_SP_SP_CTRL_REG, 1);
   OUT_RING(ring, A3XX_SP_SP_CTRL_REG_CONSTMODE(constmode) |
                     COND(emit->binning_pass, A3XX_SP_SP_CTRL_REG_BINNING) |
                     A3XX_SP_SP_CTRL_REG_SLEEPMODE(1) |
                     A3XX_SP_SP_CTRL_REG_L0MODE(0));

   OUT_PKT0(ring, REG_A3XX_SP_VS_LENGTH_REG, 1);
   OUT_RING(ring, A3XX_SP_VS_LENGTH_REG_SHADERLENGTH(vp->instrlen));

   OUT_PKT0(ring, REG_A3XX_SP_VS_CTRL_REG0, 3);
   OUT_RING(ring,
            A3XX_SP_VS_CTRL_REG0_THREADMODE(MULTI) |
               A3XX_SP_VS_CTRL_REG0_INSTRBUFFERMODE(vpbuffer) |
               COND(vpbuffer == CACHE, A3XX_SP_VS_CTRL_REG0_CACHEINVALID) |
               A3XX_SP_VS_CTRL_REG0_HALFREGFOOTPRINT(vsi->max_half_reg + 1) |
               A3XX_SP_VS_CTRL_REG0_FULLREGFOOTPRINT(vsi->max_reg + 1) |
               A3XX_SP_VS_CTRL_REG0_THREADSIZE(TWO_QUADS) |
               A3XX_SP_VS_CTRL_REG0_SUPERTHREADMODE |
               A3XX_SP_VS_CTRL_REG0_LENGTH(vpbuffersz));
   OUT_RING(ring,
            A3XX_SP_VS_CTRL_REG1_CONSTLENGTH(vp->constlen) |
               A3XX_SP_VS_CTRL_REG1_INITIALOUTSTANDING(vp->total_in) |
               A3XX_SP_VS_CTRL_REG1_CONSTFOOTPRINT(MAX2(vp->constlen - 1, 0)));
   OUT_RING(ring, A3XX_SP_VS_PARAM_REG_POSREGID(pos_regid) |
                     A3XX_SP_VS_PARAM_REG_PSIZEREGID(psize_regid) |
                     A3XX_SP_VS_PARAM_REG_TOTALVSOUTVAR(fp->varying_in));

   struct ir3_shader_linkage l = {0};
   ir3_link_shaders(&l, vp, fp, false);

   for (i = 0, j = 0; (i < 16) && (j < l.cnt); i++) {
      uint32_t reg = 0;

      OUT_PKT0(ring, REG_A3XX_SP_VS_OUT_REG(i), 1);

      reg |= A3XX_SP_VS_OUT_REG_A_REGID(l.var[j].regid);
      reg |= A3XX_SP_VS_OUT_REG_A_COMPMASK(l.var[j].compmask);
      j++;

      reg |= A3XX_SP_VS_OUT_REG_B_REGID(l.var[j].regid);
      reg |= A3XX_SP_VS_OUT_REG_B_COMPMASK(l.var[j].compmask);
      j++;

      OUT_RING(ring, reg);
   }

   for (i = 0, j = 0; (i < 8) && (j < l.cnt); i++) {
      uint32_t reg = 0;

      OUT_PKT0(ring, REG_A3XX_SP_VS_VPC_DST_REG(i), 1);

      reg |= A3XX_SP_VS_VPC_DST_REG_OUTLOC0(l.var[j++].loc + 8);
      reg |= A3XX_SP_VS_VPC_DST_REG_OUTLOC1(l.var[j++].loc + 8);
      reg |= A3XX_SP_VS_VPC_DST_REG_OUTLOC2(l.var[j++].loc + 8);
      reg |= A3XX_SP_VS_VPC_DST_REG_OUTLOC3(l.var[j++].loc + 8);

      OUT_RING(ring, reg);
   }

   OUT_PKT0(ring, REG_A3XX_SP_VS_OBJ_OFFSET_REG, 2);
   OUT_RING(ring, A3XX_SP_VS_OBJ_OFFSET_REG_CONSTOBJECTOFFSET(0) |
                     A3XX_SP_VS_OBJ_OFFSET_REG_SHADEROBJOFFSET(0));
   OUT_RELOC(ring, vp->bo, 0, 0, 0); /* SP_VS_OBJ_START_REG */

   if (emit->binning_pass) {
      OUT_PKT0(ring, REG_A3XX_SP_FS_LENGTH_REG, 1);
      OUT_RING(ring, 0x00000000);

      OUT_PKT0(ring, REG_A3XX_SP_FS_CTRL_REG0, 2);
      OUT_RING(ring, A3XX_SP_FS_CTRL_REG0_THREADMODE(MULTI) |
                        A3XX_SP_FS_CTRL_REG0_INSTRBUFFERMODE(BUFFER));
      OUT_RING(ring, 0x00000000);

      OUT_PKT0(ring, REG_A3XX_SP_FS_OBJ_OFFSET_REG, 1);
      OUT_RING(ring, A3XX_SP_FS_OBJ_OFFSET_REG_CONSTOBJECTOFFSET(128) |
                        A3XX_SP_FS_OBJ_OFFSET_REG_SHADEROBJOFFSET(0));
   } else {
      OUT_PKT0(ring, REG_A3XX_SP_FS_LENGTH_REG, 1);
      OUT_RING(ring, A3XX_SP_FS_LENGTH_REG_SHADERLENGTH(fp->instrlen));

      OUT_PKT0(ring, REG_A3XX_SP_FS_CTRL_REG0, 2);
      OUT_RING(ring,
               A3XX_SP_FS_CTRL_REG0_THREADMODE(MULTI) |
                  A3XX_SP_FS_CTRL_REG0_INSTRBUFFERMODE(fpbuffer) |
                  COND(fpbuffer == CACHE, A3XX_SP_FS_CTRL_REG0_CACHEINVALID) |
                  A3XX_SP_FS_CTRL_REG0_HALFREGFOOTPRINT(fsi->max_half_reg + 1) |
                  A3XX_SP_FS_CTRL_REG0_FULLREGFOOTPRINT(fsi->max_reg + 1) |
                  A3XX_SP_FS_CTRL_REG0_INOUTREGOVERLAP |
                  A3XX_SP_FS_CTRL_REG0_THREADSIZE(FOUR_QUADS) |
                  A3XX_SP_FS_CTRL_REG0_SUPERTHREADMODE |
                  COND(fp->need_pixlod, A3XX_SP_FS_CTRL_REG0_PIXLODENABLE) |
                  A3XX_SP_FS_CTRL_REG0_LENGTH(fpbuffersz));
      OUT_RING(ring, A3XX_SP_FS_CTRL_REG1_CONSTLENGTH(fp->constlen) |
                        A3XX_SP_FS_CTRL_REG1_INITIALOUTSTANDING(fp->sysval_in) |
                        A3XX_SP_FS_CTRL_REG1_CONSTFOOTPRINT(
                           MAX2(fp->constlen - 1, 0)) |
                        A3XX_SP_FS_CTRL_REG1_HALFPRECVAROFFSET(63));

      OUT_PKT0(ring, REG_A3XX_SP_FS_OBJ_OFFSET_REG, 2);
      OUT_RING(ring, A3XX_SP_FS_OBJ_OFFSET_REG_CONSTOBJECTOFFSET(
                        MAX2(128, vp->constlen)) |
                        A3XX_SP_FS_OBJ_OFFSET_REG_SHADEROBJOFFSET(fsoff));
      OUT_RELOC(ring, fp->bo, 0, 0, 0); /* SP_FS_OBJ_START_REG */
   }

   OUT_PKT0(ring, REG_A3XX_SP_FS_OUTPUT_REG, 1);
   OUT_RING(ring, COND(fp->writes_pos, A3XX_SP_FS_OUTPUT_REG_DEPTH_ENABLE) |
                     A3XX_SP_FS_OUTPUT_REG_DEPTH_REGID(posz_regid) |
                     A3XX_SP_FS_OUTPUT_REG_MRT(MAX2(1, nr) - 1));

   OUT_PKT0(ring, REG_A3XX_SP_FS_MRT_REG(0), 4);
   for (i = 0; i < 4; i++) {
      uint32_t mrt_reg =
         A3XX_SP_FS_MRT_REG_REGID(color_regid[i]) |
         COND(color_regid[i] & HALF_REG_ID, A3XX_SP_FS_MRT_REG_HALF_PRECISION);

      if (i < nr) {
         enum pipe_format fmt = pipe_surface_format(bufs[i]);
         mrt_reg |=
            COND(util_format_is_pure_uint(fmt), A3XX_SP_FS_MRT_REG_UINT) |
            COND(util_format_is_pure_sint(fmt), A3XX_SP_FS_MRT_REG_SINT);
      }
      OUT_RING(ring, mrt_reg);
   }

   if (emit->binning_pass) {
      OUT_PKT0(ring, REG_A3XX_VPC_ATTR, 2);
      OUT_RING(ring, A3XX_VPC_ATTR_THRDASSIGN(1) | A3XX_VPC_ATTR_LMSIZE(1) |
                        COND(vp->writes_psize, A3XX_VPC_ATTR_PSIZE));
      OUT_RING(ring, 0x00000000);
   } else {
      uint32_t vinterp[4], flatshade[2], vpsrepl[4];

      memset(vinterp, 0, sizeof(vinterp));
      memset(flatshade, 0, sizeof(flatshade));
      memset(vpsrepl, 0, sizeof(vpsrepl));

      /* figure out VARYING_INTERP / FLAT_SHAD register values: */
      for (j = -1; (j = ir3_next_varying(fp, j)) < (int)fp->inputs_count;) {
         /* NOTE: varyings are packed, so if compmask is 0xb
          * then first, third, and fourth component occupy
          * three consecutive varying slots:
          */
         unsigned compmask = fp->inputs[j].compmask;

         uint32_t inloc = fp->inputs[j].inloc;

         if (fp->inputs[j].flat ||
             (fp->inputs[j].rasterflat && emit->rasterflat)) {
            uint32_t loc = inloc;

            for (i = 0; i < 4; i++) {
               if (compmask & (1 << i)) {
                  vinterp[loc / 16] |= FLAT << ((loc % 16) * 2);
                  flatshade[loc / 32] |= 1 << (loc % 32);
                  loc++;
               }
            }
         }

         bool coord_mode = emit->sprite_coord_mode;
         if (ir3_point_sprite(fp, j, emit->sprite_coord_enable, &coord_mode)) {
            /* mask is two 2-bit fields, where:
             *   '01' -> S
             *   '10' -> T
             *   '11' -> 1 - T  (flip mode)
             */
            unsigned mask = coord_mode ? 0b1101 : 0b1001;
            uint32_t loc = inloc;
            if (compmask & 0x1) {
               vpsrepl[loc / 16] |= ((mask >> 0) & 0x3) << ((loc % 16) * 2);
               loc++;
            }
            if (compmask & 0x2) {
               vpsrepl[loc / 16] |= ((mask >> 2) & 0x3) << ((loc % 16) * 2);
               loc++;
            }
            if (compmask & 0x4) {
               /* .z <- 0.0f */
               vinterp[loc / 16] |= 0b10 << ((loc % 16) * 2);
               loc++;
            }
            if (compmask & 0x8) {
               /* .w <- 1.0f */
               vinterp[loc / 16] |= 0b11 << ((loc % 16) * 2);
               loc++;
            }
         }
      }

      OUT_PKT0(ring, REG_A3XX_VPC_ATTR, 2);
      OUT_RING(ring, A3XX_VPC_ATTR_TOTALATTR(fp->total_in) |
                        A3XX_VPC_ATTR_THRDASSIGN(1) | A3XX_VPC_ATTR_LMSIZE(1) |
                        COND(vp->writes_psize, A3XX_VPC_ATTR_PSIZE));
      OUT_RING(ring, A3XX_VPC_PACK_NUMFPNONPOSVAR(fp->total_in) |
                        A3XX_VPC_PACK_NUMNONPOSVSVAR(fp->total_in));

      OUT_PKT0(ring, REG_A3XX_VPC_VARYING_INTERP_MODE(0), 4);
      OUT_RING(ring, vinterp[0]); /* VPC_VARYING_INTERP[0].MODE */
      OUT_RING(ring, vinterp[1]); /* VPC_VARYING_INTERP[1].MODE */
      OUT_RING(ring, vinterp[2]); /* VPC_VARYING_INTERP[2].MODE */
      OUT_RING(ring, vinterp[3]); /* VPC_VARYING_INTERP[3].MODE */

      OUT_PKT0(ring, REG_A3XX_VPC_VARYING_PS_REPL_MODE(0), 4);
      OUT_RING(ring, vpsrepl[0]); /* VPC_VARYING_PS_REPL[0].MODE */
      OUT_RING(ring, vpsrepl[1]); /* VPC_VARYING_PS_REPL[1].MODE */
      OUT_RING(ring, vpsrepl[2]); /* VPC_VARYING_PS_REPL[2].MODE */
      OUT_RING(ring, vpsrepl[3]); /* VPC_VARYING_PS_REPL[3].MODE */

      OUT_PKT0(ring, REG_A3XX_SP_FS_FLAT_SHAD_MODE_REG_0, 2);
      OUT_RING(ring, flatshade[0]); /* SP_FS_FLAT_SHAD_MODE_REG_0 */
      OUT_RING(ring, flatshade[1]); /* SP_FS_FLAT_SHAD_MODE_REG_1 */
   }

   if (vpbuffer == BUFFER)
      emit_shader(ring, vp);

   OUT_PKT0(ring, REG_A3XX_VFD_PERFCOUNTER0_SELECT, 1);
   OUT_RING(ring, 0x00000000); /* VFD_PERFCOUNTER0_SELECT */

   if (!emit->binning_pass) {
      if (fpbuffer == BUFFER)
         emit_shader(ring, fp);

      OUT_PKT0(ring, REG_A3XX_VFD_PERFCOUNTER0_SELECT, 1);
      OUT_RING(ring, 0x00000000); /* VFD_PERFCOUNTER0_SELECT */
   }
}

static struct ir3_program_state *
fd3_program_create(void *data, struct ir3_shader_variant *bs,
                   struct ir3_shader_variant *vs, struct ir3_shader_variant *hs,
                   struct ir3_shader_variant *ds, struct ir3_shader_variant *gs,
                   struct ir3_shader_variant *fs,
                   const struct ir3_cache_key *key) in_dt
{
   struct fd_context *ctx = fd_context(data);
   struct fd3_program_state *state = CALLOC_STRUCT(fd3_program_state);

   tc_assert_driver_thread(ctx->tc);

   state->bs = bs;
   state->vs = vs;
   state->fs = fs;

   return &state->base;
}

static void
fd3_program_destroy(void *data, struct ir3_program_state *state)
{
   struct fd3_program_state *so = fd3_program_state(state);
   free(so);
}

static const struct ir3_cache_funcs cache_funcs = {
   .create_state = fd3_program_create,
   .destroy_state = fd3_program_destroy,
};

void
fd3_prog_init(struct pipe_context *pctx)
{
   struct fd_context *ctx = fd_context(pctx);

   ctx->shader_cache = ir3_cache_create(&cache_funcs, ctx);
   ir3_prog_init(pctx);
   fd_prog_init(pctx);
}
