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/*

 * Copyright 2011-2013 Maarten Lankhorst

 *

 * 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 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.

 */

#include "nvc0/nvc0_video.h"

#if NOUVEAU_VP3_DEBUG_FENCE

static void dump_comm_bsp(struct comm *comm)

{

   unsigned idx = comm->bsp_cur_index & 0xf;

   debug_printf("Cur seq: %x, bsp byte ofs: %x\n", comm->bsp_cur_index, comm->byte_ofs);

   debug_printf("Status: %08x, pos: %08x\n", comm->status[idx], comm->pos[idx]);

}

#endif

unsigned

nvc0_decoder_bsp(struct nouveau_vp3_decoder *dec, union pipe_desc desc,

                 struct nouveau_vp3_video_buffer *target,

                 unsigned comm_seq, unsigned num_buffers,

                 const void *const *data, const unsigned *num_bytes,

                 unsigned *vp_caps, unsigned *is_ref,

                 struct nouveau_vp3_video_buffer *refs[16])

{

   struct nouveau_pushbuf *push = dec->pushbuf[0];

   enum pipe_video_format codec = u_reduce_video_profile(dec->base.profile);

   uint32_t bsp_addr, comm_addr, inter_addr;

   uint32_t slice_size, bucket_size, ring_size, bsp_size;

   uint32_t caps, i;

   int ret;

   struct nouveau_bo *bsp_bo = dec->bsp_bo[comm_seq % NOUVEAU_VP3_VIDEO_QDEPTH];

   struct nouveau_bo *inter_bo = dec->inter_bo[comm_seq & 1];

   unsigned fence_extra = 0;

   struct nouveau_pushbuf_refn bo_refs[] = {

      { bsp_bo, NOUVEAU_BO_RD | NOUVEAU_BO_VRAM },

      { inter_bo, NOUVEAU_BO_WR | NOUVEAU_BO_VRAM },

#if NOUVEAU_VP3_DEBUG_FENCE

      { dec->fence_bo, NOUVEAU_BO_WR | NOUVEAU_BO_GART },

#endif

      { dec->bitplane_bo, NOUVEAU_BO_RDWR | NOUVEAU_BO_VRAM },

   };

   int num_refs = sizeof(bo_refs)/sizeof(*bo_refs);

   if (!dec->bitplane_bo)

      num_refs--;

#if NOUVEAU_VP3_DEBUG_FENCE

   fence_extra = 4;

#endif

   bsp_size = NOUVEAU_VP3_BSP_RESERVED_SIZE;

   for (i = 0; i < num_buffers; i++)

      bsp_size += num_bytes[i];

   bsp_size += 256; /* the 4 end markers */

   if (!bsp_bo || bsp_size > bsp_bo->size) {

      union nouveau_bo_config cfg;

      struct nouveau_bo *tmp_bo = NULL;

      cfg.nvc0.tile_mode = 0x10;

      cfg.nvc0.memtype = 0xfe;

      /* round up to the nearest mb */

      bsp_size += (1 << 20) - 1;

      bsp_size &= ~((1 << 20) - 1);

      ret = nouveau_bo_new(dec->bitplane_bo->device, NOUVEAU_BO_VRAM, 0, bsp_size, &cfg, &tmp_bo);

      if (ret) {

         debug_printf("reallocating bsp %u -> %u failed with %i\n",

                      bsp_bo ? (unsigned)bsp_bo->size : 0, bsp_size, ret);

         return -1;

      }

      nouveau_bo_ref(NULL, &bsp_bo);

      bo_refs[0].bo = dec->bsp_bo[comm_seq % NOUVEAU_VP3_VIDEO_QDEPTH] = bsp_bo = tmp_bo;

   }

   if (!inter_bo || bsp_bo->size * 4 > inter_bo->size) {

      union nouveau_bo_config cfg;

      struct nouveau_bo *tmp_bo = NULL;

      cfg.nvc0.tile_mode = 0x10;

      cfg.nvc0.memtype = 0xfe;

      ret = nouveau_bo_new(dec->bitplane_bo->device, NOUVEAU_BO_VRAM, 0, bsp_bo->size * 4, &cfg, &tmp_bo);

      if (ret) {

         debug_printf("reallocating inter %u -> %u failed with %i\n",

                      inter_bo ? (unsigned)inter_bo->size : 0, (unsigned)bsp_bo->size * 4, ret);

         return -1;

      }

      nouveau_bo_ref(NULL, &inter_bo);

      bo_refs[1].bo = dec->inter_bo[comm_seq & 1] = inter_bo = tmp_bo;

   }

   ret = nouveau_bo_map(bsp_bo, NOUVEAU_BO_WR, dec->client);

   if (ret) {

      debug_printf("map failed: %i %s\n", ret, strerror(-ret));

      return -1;

   }

   caps = nouveau_vp3_bsp(dec, desc, target, comm_seq,

                          num_buffers, data, num_bytes);

   nouveau_vp3_vp_caps(dec, desc, target, comm_seq, vp_caps, is_ref, refs);

   nouveau_pushbuf_space(push, 6 + (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC ? 9 : 7) + fence_extra + 2, num_refs, 0);

   nouveau_pushbuf_refn(push, bo_refs, num_refs);

   bsp_addr = bsp_bo->offset >> 8;

   inter_addr = inter_bo->offset >> 8;

#if NOUVEAU_VP3_DEBUG_FENCE

   memset(dec->comm, 0, 0x200);

   comm_addr = (dec->fence_bo->offset + COMM_OFFSET) >> 8;

#else

   comm_addr = bsp_addr + (COMM_OFFSET>>8);

#endif

   BEGIN_NVC0(push, SUBC_BSP(0x700), 5);

   PUSH_DATA (push, caps); // 700 cmd

   PUSH_DATA (push, bsp_addr + 1); // 704 strparm_bsp

   PUSH_DATA (push, bsp_addr + 7); // 708 str addr

   PUSH_DATA (push, comm_addr); // 70c comm

   PUSH_DATA (push, comm_seq); // 710 seq

   if (codec != PIPE_VIDEO_FORMAT_MPEG4_AVC) {

      u32 bitplane_addr;

      bitplane_addr = dec->bitplane_bo->offset >> 8;

      nouveau_vp3_inter_sizes(dec, 1, &slice_size, &bucket_size, &ring_size);

      BEGIN_NVC0(push, SUBC_BSP(0x400), 6);

      PUSH_DATA (push, bsp_addr); // 400 picparm addr

      PUSH_DATA (push, inter_addr); // 404 interparm addr

      PUSH_DATA (push, inter_addr + slice_size + bucket_size); // 408 interdata addr

      PUSH_DATA (push, ring_size << 8); // 40c interdata_size

      PUSH_DATA (push, bitplane_addr); // 410 BITPLANE_DATA

      PUSH_DATA (push, 0x400); // 414 BITPLANE_DATA_SIZE

   } else {

      nouveau_vp3_inter_sizes(dec, desc.h264->slice_count, &slice_size, &bucket_size, &ring_size);

      BEGIN_NVC0(push, SUBC_BSP(0x400), 8);

      PUSH_DATA (push, bsp_addr); // 400 picparm addr

      PUSH_DATA (push, inter_addr); // 404 interparm addr

      PUSH_DATA (push, slice_size << 8); // 408 interparm size?

      PUSH_DATA (push, inter_addr + slice_size + bucket_size); // 40c interdata addr

      PUSH_DATA (push, ring_size << 8); // 410 interdata size

      PUSH_DATA (push, inter_addr + slice_size); // 414 bucket?

      PUSH_DATA (push, bucket_size << 8); // 418 bucket size? unshifted..

      PUSH_DATA (push, 0); // 41c targets

      // TODO: Double check 414 / 418 with nvidia trace

   }

#if NOUVEAU_VP3_DEBUG_FENCE

   BEGIN_NVC0(push, SUBC_BSP(0x240), 3);

   PUSH_DATAh(push, dec->fence_bo->offset);

   PUSH_DATA (push, dec->fence_bo->offset);

   PUSH_DATA (push, dec->fence_seq);

   BEGIN_NVC0(push, SUBC_BSP(0x300), 1);

   PUSH_DATA (push, 1);

   PUSH_KICK (push);

   {

      unsigned spin = 0;

      do {

         usleep(100);

         if ((spin++ & 0xff) == 0xff) {

            debug_printf("b%u: %u\n", dec->fence_seq, dec->fence_map[0]);

            dump_comm_bsp(dec->comm);

         }

      } while (dec->fence_seq > dec->fence_map[0]);

   }

   dump_comm_bsp(dec->comm);

   return dec->comm->status[comm_seq & 0xf];

#else

   BEGIN_NVC0(push, SUBC_BSP(0x300), 1);

   PUSH_DATA (push, 0);

   PUSH_KICK (push);

   return 2;

#endif

}