Home | History | Annotate | Download | only in nvc0
      1 /*
      2  * Copyright 2008 Ben Skeggs
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice shall be included in
     12  * all copies or substantial portions of the Software.
     13  *
     14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20  * OTHER DEALINGS IN THE SOFTWARE.
     21  */
     22 
     23 #include <stdint.h>
     24 
     25 #include "pipe/p_defines.h"
     26 
     27 #include "util/u_inlines.h"
     28 #include "util/u_pack_color.h"
     29 #include "util/u_format.h"
     30 #include "util/u_surface.h"
     31 
     32 #include "os/os_thread.h"
     33 
     34 #include "nvc0/nvc0_context.h"
     35 #include "nvc0/nvc0_resource.h"
     36 
     37 #include "nv50/g80_defs.xml.h"
     38 #include "nv50/g80_texture.xml.h"
     39 
     40 /* these are used in nv50_blit.h */
     41 #define NV50_ENG2D_SUPPORTED_FORMATS 0xff9ccfe1cce3ccc9ULL
     42 #define NV50_ENG2D_NOCONVERT_FORMATS 0x009cc02000000000ULL
     43 #define NV50_ENG2D_LUMINANCE_FORMATS 0x001cc02000000000ULL
     44 #define NV50_ENG2D_INTENSITY_FORMATS 0x0080000000000000ULL
     45 #define NV50_ENG2D_OPERATION_FORMATS 0x060001c000638000ULL
     46 
     47 #define NOUVEAU_DRIVER 0xc0
     48 #include "nv50/nv50_blit.h"
     49 
     50 static inline uint8_t
     51 nvc0_2d_format(enum pipe_format format, bool dst, bool dst_src_equal)
     52 {
     53    uint8_t id = nvc0_format_table[format].rt;
     54 
     55    /* A8_UNORM is treated as I8_UNORM as far as the 2D engine is concerned. */
     56    if (!dst && unlikely(format == PIPE_FORMAT_I8_UNORM) && !dst_src_equal)
     57       return G80_SURFACE_FORMAT_A8_UNORM;
     58 
     59    /* Hardware values for color formats range from 0xc0 to 0xff,
     60     * but the 2D engine doesn't support all of them.
     61     */
     62    if (nv50_2d_format_supported(format))
     63       return id;
     64    assert(dst_src_equal);
     65 
     66    switch (util_format_get_blocksize(format)) {
     67    case 1:
     68       return G80_SURFACE_FORMAT_R8_UNORM;
     69    case 2:
     70       return G80_SURFACE_FORMAT_RG8_UNORM;
     71    case 4:
     72       return G80_SURFACE_FORMAT_BGRA8_UNORM;
     73    case 8:
     74       return G80_SURFACE_FORMAT_RGBA16_UNORM;
     75    case 16:
     76       return G80_SURFACE_FORMAT_RGBA32_FLOAT;
     77    default:
     78       assert(0);
     79       return 0;
     80    }
     81 }
     82 
     83 static int
     84 nvc0_2d_texture_set(struct nouveau_pushbuf *push, bool dst,
     85                     struct nv50_miptree *mt, unsigned level, unsigned layer,
     86                     enum pipe_format pformat, bool dst_src_pformat_equal)
     87 {
     88    struct nouveau_bo *bo = mt->base.bo;
     89    uint32_t width, height, depth;
     90    uint32_t format;
     91    uint32_t mthd = dst ? NV50_2D_DST_FORMAT : NV50_2D_SRC_FORMAT;
     92    uint32_t offset = mt->level[level].offset;
     93 
     94    format = nvc0_2d_format(pformat, dst, dst_src_pformat_equal);
     95    if (!format) {
     96       NOUVEAU_ERR("invalid/unsupported surface format: %s\n",
     97                   util_format_name(pformat));
     98       return 1;
     99    }
    100 
    101    width = u_minify(mt->base.base.width0, level) << mt->ms_x;
    102    height = u_minify(mt->base.base.height0, level) << mt->ms_y;
    103    depth = u_minify(mt->base.base.depth0, level);
    104 
    105    /* layer has to be < depth, and depth > tile depth / 2 */
    106 
    107    if (!mt->layout_3d) {
    108       offset += mt->layer_stride * layer;
    109       layer = 0;
    110       depth = 1;
    111    } else
    112    if (!dst) {
    113       offset += nvc0_mt_zslice_offset(mt, level, layer);
    114       layer = 0;
    115    }
    116 
    117    if (!nouveau_bo_memtype(bo)) {
    118       BEGIN_NVC0(push, SUBC_2D(mthd), 2);
    119       PUSH_DATA (push, format);
    120       PUSH_DATA (push, 1);
    121       BEGIN_NVC0(push, SUBC_2D(mthd + 0x14), 5);
    122       PUSH_DATA (push, mt->level[level].pitch);
    123       PUSH_DATA (push, width);
    124       PUSH_DATA (push, height);
    125       PUSH_DATAh(push, bo->offset + offset);
    126       PUSH_DATA (push, bo->offset + offset);
    127    } else {
    128       BEGIN_NVC0(push, SUBC_2D(mthd), 5);
    129       PUSH_DATA (push, format);
    130       PUSH_DATA (push, 0);
    131       PUSH_DATA (push, mt->level[level].tile_mode);
    132       PUSH_DATA (push, depth);
    133       PUSH_DATA (push, layer);
    134       BEGIN_NVC0(push, SUBC_2D(mthd + 0x18), 4);
    135       PUSH_DATA (push, width);
    136       PUSH_DATA (push, height);
    137       PUSH_DATAh(push, bo->offset + offset);
    138       PUSH_DATA (push, bo->offset + offset);
    139    }
    140 
    141 #if 0
    142    if (dst) {
    143       BEGIN_NVC0(push, SUBC_2D(NVC0_2D_CLIP_X), 4);
    144       PUSH_DATA (push, 0);
    145       PUSH_DATA (push, 0);
    146       PUSH_DATA (push, width);
    147       PUSH_DATA (push, height);
    148    }
    149 #endif
    150    return 0;
    151 }
    152 
    153 static int
    154 nvc0_2d_texture_do_copy(struct nouveau_pushbuf *push,
    155                         struct nv50_miptree *dst, unsigned dst_level,
    156                         unsigned dx, unsigned dy, unsigned dz,
    157                         struct nv50_miptree *src, unsigned src_level,
    158                         unsigned sx, unsigned sy, unsigned sz,
    159                         unsigned w, unsigned h)
    160 {
    161    const enum pipe_format dfmt = dst->base.base.format;
    162    const enum pipe_format sfmt = src->base.base.format;
    163    int ret;
    164    bool eqfmt = dfmt == sfmt;
    165 
    166    if (!PUSH_SPACE(push, 2 * 16 + 32))
    167       return PIPE_ERROR;
    168 
    169    ret = nvc0_2d_texture_set(push, true, dst, dst_level, dz, dfmt, eqfmt);
    170    if (ret)
    171       return ret;
    172 
    173    ret = nvc0_2d_texture_set(push, false, src, src_level, sz, sfmt, eqfmt);
    174    if (ret)
    175       return ret;
    176 
    177    IMMED_NVC0(push, NVC0_2D(BLIT_CONTROL), 0x00);
    178    BEGIN_NVC0(push, NVC0_2D(BLIT_DST_X), 4);
    179    PUSH_DATA (push, dx << dst->ms_x);
    180    PUSH_DATA (push, dy << dst->ms_y);
    181    PUSH_DATA (push, w << dst->ms_x);
    182    PUSH_DATA (push, h << dst->ms_y);
    183    BEGIN_NVC0(push, NVC0_2D(BLIT_DU_DX_FRACT), 4);
    184    PUSH_DATA (push, 0);
    185    PUSH_DATA (push, 1);
    186    PUSH_DATA (push, 0);
    187    PUSH_DATA (push, 1);
    188    BEGIN_NVC0(push, NVC0_2D(BLIT_SRC_X_FRACT), 4);
    189    PUSH_DATA (push, 0);
    190    PUSH_DATA (push, sx << src->ms_x);
    191    PUSH_DATA (push, 0);
    192    PUSH_DATA (push, sy << src->ms_y);
    193 
    194    return 0;
    195 }
    196 
    197 static void
    198 nvc0_resource_copy_region(struct pipe_context *pipe,
    199                           struct pipe_resource *dst, unsigned dst_level,
    200                           unsigned dstx, unsigned dsty, unsigned dstz,
    201                           struct pipe_resource *src, unsigned src_level,
    202                           const struct pipe_box *src_box)
    203 {
    204    struct nvc0_context *nvc0 = nvc0_context(pipe);
    205    int ret;
    206    bool m2mf;
    207    unsigned dst_layer = dstz, src_layer = src_box->z;
    208 
    209    if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
    210       nouveau_copy_buffer(&nvc0->base,
    211                           nv04_resource(dst), dstx,
    212                           nv04_resource(src), src_box->x, src_box->width);
    213       NOUVEAU_DRV_STAT(&nvc0->screen->base, buf_copy_bytes, src_box->width);
    214       return;
    215    }
    216    NOUVEAU_DRV_STAT(&nvc0->screen->base, tex_copy_count, 1);
    217 
    218    /* 0 and 1 are equal, only supporting 0/1, 2, 4 and 8 */
    219    assert((src->nr_samples | 1) == (dst->nr_samples | 1));
    220 
    221    m2mf = (src->format == dst->format) ||
    222       (util_format_get_blocksizebits(src->format) ==
    223        util_format_get_blocksizebits(dst->format));
    224 
    225    nv04_resource(dst)->status |= NOUVEAU_BUFFER_STATUS_GPU_WRITING;
    226 
    227    if (m2mf) {
    228       struct nv50_miptree *src_mt = nv50_miptree(src);
    229       struct nv50_miptree *dst_mt = nv50_miptree(dst);
    230       struct nv50_m2mf_rect drect, srect;
    231       unsigned i;
    232       unsigned nx = util_format_get_nblocksx(src->format, src_box->width)
    233          << src_mt->ms_x;
    234       unsigned ny = util_format_get_nblocksy(src->format, src_box->height)
    235          << src_mt->ms_y;
    236 
    237       nv50_m2mf_rect_setup(&drect, dst, dst_level, dstx, dsty, dstz);
    238       nv50_m2mf_rect_setup(&srect, src, src_level,
    239                            src_box->x, src_box->y, src_box->z);
    240 
    241       for (i = 0; i < src_box->depth; ++i) {
    242          nvc0->m2mf_copy_rect(nvc0, &drect, &srect, nx, ny);
    243 
    244          if (dst_mt->layout_3d)
    245             drect.z++;
    246          else
    247             drect.base += dst_mt->layer_stride;
    248 
    249          if (src_mt->layout_3d)
    250             srect.z++;
    251          else
    252             srect.base += src_mt->layer_stride;
    253       }
    254       return;
    255    }
    256 
    257    assert(nv50_2d_dst_format_faithful(dst->format));
    258    assert(nv50_2d_src_format_faithful(src->format));
    259 
    260    BCTX_REFN(nvc0->bufctx, 2D, nv04_resource(src), RD);
    261    BCTX_REFN(nvc0->bufctx, 2D, nv04_resource(dst), WR);
    262    nouveau_pushbuf_bufctx(nvc0->base.pushbuf, nvc0->bufctx);
    263    nouveau_pushbuf_validate(nvc0->base.pushbuf);
    264 
    265    for (; dst_layer < dstz + src_box->depth; ++dst_layer, ++src_layer) {
    266       ret = nvc0_2d_texture_do_copy(nvc0->base.pushbuf,
    267                                     nv50_miptree(dst), dst_level,
    268                                     dstx, dsty, dst_layer,
    269                                     nv50_miptree(src), src_level,
    270                                     src_box->x, src_box->y, src_layer,
    271                                     src_box->width, src_box->height);
    272       if (ret)
    273          break;
    274    }
    275    nouveau_bufctx_reset(nvc0->bufctx, 0);
    276 }
    277 
    278 static void
    279 nvc0_clear_render_target(struct pipe_context *pipe,
    280                          struct pipe_surface *dst,
    281                          const union pipe_color_union *color,
    282                          unsigned dstx, unsigned dsty,
    283                          unsigned width, unsigned height,
    284                          bool render_condition_enabled)
    285 {
    286    struct nvc0_context *nvc0 = nvc0_context(pipe);
    287    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
    288    struct nv50_surface *sf = nv50_surface(dst);
    289    struct nv04_resource *res = nv04_resource(sf->base.texture);
    290    unsigned z;
    291 
    292    assert(dst->texture->target != PIPE_BUFFER);
    293 
    294    if (!PUSH_SPACE(push, 32 + sf->depth))
    295       return;
    296 
    297    PUSH_REFN (push, res->bo, res->domain | NOUVEAU_BO_WR);
    298 
    299    BEGIN_NVC0(push, NVC0_3D(CLEAR_COLOR(0)), 4);
    300    PUSH_DATAf(push, color->f[0]);
    301    PUSH_DATAf(push, color->f[1]);
    302    PUSH_DATAf(push, color->f[2]);
    303    PUSH_DATAf(push, color->f[3]);
    304 
    305    BEGIN_NVC0(push, NVC0_3D(SCREEN_SCISSOR_HORIZ), 2);
    306    PUSH_DATA (push, ( width << 16) | dstx);
    307    PUSH_DATA (push, (height << 16) | dsty);
    308 
    309    BEGIN_NVC0(push, NVC0_3D(RT_CONTROL), 1);
    310    PUSH_DATA (push, 1);
    311    BEGIN_NVC0(push, NVC0_3D(RT_ADDRESS_HIGH(0)), 9);
    312    PUSH_DATAh(push, res->address + sf->offset);
    313    PUSH_DATA (push, res->address + sf->offset);
    314    if (likely(nouveau_bo_memtype(res->bo))) {
    315       struct nv50_miptree *mt = nv50_miptree(dst->texture);
    316 
    317       PUSH_DATA(push, sf->width);
    318       PUSH_DATA(push, sf->height);
    319       PUSH_DATA(push, nvc0_format_table[dst->format].rt);
    320       PUSH_DATA(push, (mt->layout_3d << 16) |
    321                mt->level[sf->base.u.tex.level].tile_mode);
    322       PUSH_DATA(push, dst->u.tex.first_layer + sf->depth);
    323       PUSH_DATA(push, mt->layer_stride >> 2);
    324       PUSH_DATA(push, dst->u.tex.first_layer);
    325       IMMED_NVC0(push, NVC0_3D(MULTISAMPLE_MODE), mt->ms_mode);
    326    } else {
    327       if (res->base.target == PIPE_BUFFER) {
    328          PUSH_DATA(push, 262144);
    329          PUSH_DATA(push, 1);
    330       } else {
    331          PUSH_DATA(push, nv50_miptree(&res->base)->level[0].pitch);
    332          PUSH_DATA(push, sf->height);
    333       }
    334       PUSH_DATA(push, nvc0_format_table[sf->base.format].rt);
    335       PUSH_DATA(push, 1 << 12);
    336       PUSH_DATA(push, 1);
    337       PUSH_DATA(push, 0);
    338       PUSH_DATA(push, 0);
    339 
    340       IMMED_NVC0(push, NVC0_3D(ZETA_ENABLE), 0);
    341       IMMED_NVC0(push, NVC0_3D(MULTISAMPLE_MODE), 0);
    342 
    343       /* tiled textures don't have to be fenced, they're not mapped directly */
    344       nvc0_resource_fence(res, NOUVEAU_BO_WR);
    345    }
    346 
    347    if (!render_condition_enabled)
    348       IMMED_NVC0(push, NVC0_3D(COND_MODE), NVC0_3D_COND_MODE_ALWAYS);
    349 
    350    BEGIN_NIC0(push, NVC0_3D(CLEAR_BUFFERS), sf->depth);
    351    for (z = 0; z < sf->depth; ++z) {
    352       PUSH_DATA (push, 0x3c |
    353                  (z << NVC0_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    354    }
    355 
    356    if (!render_condition_enabled)
    357       IMMED_NVC0(push, NVC0_3D(COND_MODE), nvc0->cond_condmode);
    358 
    359    nvc0->dirty_3d |= NVC0_NEW_3D_FRAMEBUFFER;
    360 }
    361 
    362 static void
    363 nvc0_clear_buffer_push_nvc0(struct pipe_context *pipe,
    364                             struct pipe_resource *res,
    365                             unsigned offset, unsigned size,
    366                             const void *data, int data_size)
    367 {
    368    struct nvc0_context *nvc0 = nvc0_context(pipe);
    369    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
    370    struct nv04_resource *buf = nv04_resource(res);
    371    unsigned i;
    372 
    373    nouveau_bufctx_refn(nvc0->bufctx, 0, buf->bo, buf->domain | NOUVEAU_BO_WR);
    374    nouveau_pushbuf_bufctx(push, nvc0->bufctx);
    375    nouveau_pushbuf_validate(push);
    376 
    377    unsigned count = (size + 3) / 4;
    378    unsigned data_words = data_size / 4;
    379 
    380    while (count) {
    381       unsigned nr_data = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN) / data_words;
    382       unsigned nr = nr_data * data_words;
    383 
    384       if (!PUSH_SPACE(push, nr + 9))
    385          break;
    386 
    387       BEGIN_NVC0(push, NVC0_M2MF(OFFSET_OUT_HIGH), 2);
    388       PUSH_DATAh(push, buf->address + offset);
    389       PUSH_DATA (push, buf->address + offset);
    390       BEGIN_NVC0(push, NVC0_M2MF(LINE_LENGTH_IN), 2);
    391       PUSH_DATA (push, MIN2(size, nr * 4));
    392       PUSH_DATA (push, 1);
    393       BEGIN_NVC0(push, NVC0_M2MF(EXEC), 1);
    394       PUSH_DATA (push, 0x100111);
    395 
    396       /* must not be interrupted (trap on QUERY fence, 0x50 works however) */
    397       BEGIN_NIC0(push, NVC0_M2MF(DATA), nr);
    398       for (i = 0; i < nr_data; i++)
    399          PUSH_DATAp(push, data, data_words);
    400 
    401       count -= nr;
    402       offset += nr * 4;
    403       size -= nr * 4;
    404    }
    405 
    406    if (buf->mm) {
    407       nouveau_fence_ref(nvc0->screen->base.fence.current, &buf->fence);
    408       nouveau_fence_ref(nvc0->screen->base.fence.current, &buf->fence_wr);
    409    }
    410 
    411    nouveau_bufctx_reset(nvc0->bufctx, 0);
    412 }
    413 
    414 static void
    415 nvc0_clear_buffer_push_nve4(struct pipe_context *pipe,
    416                             struct pipe_resource *res,
    417                             unsigned offset, unsigned size,
    418                             const void *data, int data_size)
    419 {
    420    struct nvc0_context *nvc0 = nvc0_context(pipe);
    421    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
    422    struct nv04_resource *buf = nv04_resource(res);
    423    unsigned i;
    424 
    425    nouveau_bufctx_refn(nvc0->bufctx, 0, buf->bo, buf->domain | NOUVEAU_BO_WR);
    426    nouveau_pushbuf_bufctx(push, nvc0->bufctx);
    427    nouveau_pushbuf_validate(push);
    428 
    429    unsigned count = (size + 3) / 4;
    430    unsigned data_words = data_size / 4;
    431 
    432    while (count) {
    433       unsigned nr_data = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN) / data_words;
    434       unsigned nr = nr_data * data_words;
    435 
    436       if (!PUSH_SPACE(push, nr + 10))
    437          break;
    438 
    439       BEGIN_NVC0(push, NVE4_P2MF(UPLOAD_DST_ADDRESS_HIGH), 2);
    440       PUSH_DATAh(push, buf->address + offset);
    441       PUSH_DATA (push, buf->address + offset);
    442       BEGIN_NVC0(push, NVE4_P2MF(UPLOAD_LINE_LENGTH_IN), 2);
    443       PUSH_DATA (push, MIN2(size, nr * 4));
    444       PUSH_DATA (push, 1);
    445       /* must not be interrupted (trap on QUERY fence, 0x50 works however) */
    446       BEGIN_1IC0(push, NVE4_P2MF(UPLOAD_EXEC), nr + 1);
    447       PUSH_DATA (push, 0x1001);
    448       for (i = 0; i < nr_data; i++)
    449          PUSH_DATAp(push, data, data_words);
    450 
    451       count -= nr;
    452       offset += nr * 4;
    453       size -= nr * 4;
    454    }
    455 
    456    if (buf->mm) {
    457       nouveau_fence_ref(nvc0->screen->base.fence.current, &buf->fence);
    458       nouveau_fence_ref(nvc0->screen->base.fence.current, &buf->fence_wr);
    459    }
    460 
    461    nouveau_bufctx_reset(nvc0->bufctx, 0);
    462 }
    463 
    464 static void
    465 nvc0_clear_buffer_push(struct pipe_context *pipe,
    466                        struct pipe_resource *res,
    467                        unsigned offset, unsigned size,
    468                        const void *data, int data_size)
    469 {
    470    struct nvc0_context *nvc0 = nvc0_context(pipe);
    471    unsigned tmp;
    472 
    473    if (data_size == 1) {
    474       tmp = *(unsigned char *)data;
    475       tmp = (tmp << 24) | (tmp << 16) | (tmp << 8) | tmp;
    476       data = &tmp;
    477       data_size = 4;
    478    } else if (data_size == 2) {
    479       tmp = *(unsigned short *)data;
    480       tmp = (tmp << 16) | tmp;
    481       data = &tmp;
    482       data_size = 4;
    483    }
    484 
    485    if (nvc0->screen->base.class_3d < NVE4_3D_CLASS)
    486       nvc0_clear_buffer_push_nvc0(pipe, res, offset, size, data, data_size);
    487    else
    488       nvc0_clear_buffer_push_nve4(pipe, res, offset, size, data, data_size);
    489 }
    490 
    491 static void
    492 nvc0_clear_buffer(struct pipe_context *pipe,
    493                   struct pipe_resource *res,
    494                   unsigned offset, unsigned size,
    495                   const void *data, int data_size)
    496 {
    497    struct nvc0_context *nvc0 = nvc0_context(pipe);
    498    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
    499    struct nv04_resource *buf = nv04_resource(res);
    500    union pipe_color_union color;
    501    enum pipe_format dst_fmt;
    502    unsigned width, height, elements;
    503 
    504    assert(res->target == PIPE_BUFFER);
    505    assert(nouveau_bo_memtype(buf->bo) == 0);
    506 
    507    switch (data_size) {
    508    case 16:
    509       dst_fmt = PIPE_FORMAT_R32G32B32A32_UINT;
    510       memcpy(&color.ui, data, 16);
    511       break;
    512    case 12:
    513       /* RGB32 is not a valid RT format. This will be handled by the pushbuf
    514        * uploader.
    515        */
    516       break;
    517    case 8:
    518       dst_fmt = PIPE_FORMAT_R32G32_UINT;
    519       memcpy(&color.ui, data, 8);
    520       memset(&color.ui[2], 0, 8);
    521       break;
    522    case 4:
    523       dst_fmt = PIPE_FORMAT_R32_UINT;
    524       memcpy(&color.ui, data, 4);
    525       memset(&color.ui[1], 0, 12);
    526       break;
    527    case 2:
    528       dst_fmt = PIPE_FORMAT_R16_UINT;
    529       color.ui[0] = util_cpu_to_le32(
    530             util_le16_to_cpu(*(unsigned short *)data));
    531       memset(&color.ui[1], 0, 12);
    532       break;
    533    case 1:
    534       dst_fmt = PIPE_FORMAT_R8_UINT;
    535       color.ui[0] = util_cpu_to_le32(*(unsigned char *)data);
    536       memset(&color.ui[1], 0, 12);
    537       break;
    538    default:
    539       assert(!"Unsupported element size");
    540       return;
    541    }
    542 
    543    assert(size % data_size == 0);
    544 
    545    if (data_size == 12) {
    546       nvc0_clear_buffer_push(pipe, res, offset, size, data, data_size);
    547       return;
    548    }
    549 
    550    if (offset & 0xff) {
    551       unsigned fixup_size = MIN2(size, align(offset, 0x100) - offset);
    552       assert(fixup_size % data_size == 0);
    553       nvc0_clear_buffer_push(pipe, res, offset, fixup_size, data, data_size);
    554       offset += fixup_size;
    555       size -= fixup_size;
    556       if (!size)
    557          return;
    558    }
    559 
    560    elements = size / data_size;
    561    height = (elements + 16383) / 16384;
    562    width = elements / height;
    563    if (height > 1)
    564       width &= ~0xff;
    565    assert(width > 0);
    566 
    567    if (!PUSH_SPACE(push, 40))
    568       return;
    569 
    570    PUSH_REFN (push, buf->bo, buf->domain | NOUVEAU_BO_WR);
    571 
    572    BEGIN_NVC0(push, NVC0_3D(CLEAR_COLOR(0)), 4);
    573    PUSH_DATAf(push, color.f[0]);
    574    PUSH_DATAf(push, color.f[1]);
    575    PUSH_DATAf(push, color.f[2]);
    576    PUSH_DATAf(push, color.f[3]);
    577    BEGIN_NVC0(push, NVC0_3D(SCREEN_SCISSOR_HORIZ), 2);
    578    PUSH_DATA (push, width << 16);
    579    PUSH_DATA (push, height << 16);
    580 
    581    IMMED_NVC0(push, NVC0_3D(RT_CONTROL), 1);
    582 
    583    BEGIN_NVC0(push, NVC0_3D(RT_ADDRESS_HIGH(0)), 9);
    584    PUSH_DATAh(push, buf->address + offset);
    585    PUSH_DATA (push, buf->address + offset);
    586    PUSH_DATA (push, align(width * data_size, 0x100));
    587    PUSH_DATA (push, height);
    588    PUSH_DATA (push, nvc0_format_table[dst_fmt].rt);
    589    PUSH_DATA (push, NVC0_3D_RT_TILE_MODE_LINEAR);
    590    PUSH_DATA (push, 1);
    591    PUSH_DATA (push, 0);
    592    PUSH_DATA (push, 0);
    593 
    594    IMMED_NVC0(push, NVC0_3D(ZETA_ENABLE), 0);
    595    IMMED_NVC0(push, NVC0_3D(MULTISAMPLE_MODE), 0);
    596 
    597    IMMED_NVC0(push, NVC0_3D(COND_MODE), NVC0_3D_COND_MODE_ALWAYS);
    598 
    599    IMMED_NVC0(push, NVC0_3D(CLEAR_BUFFERS), 0x3c);
    600 
    601    IMMED_NVC0(push, NVC0_3D(COND_MODE), nvc0->cond_condmode);
    602 
    603    if (buf->mm) {
    604       nouveau_fence_ref(nvc0->screen->base.fence.current, &buf->fence);
    605       nouveau_fence_ref(nvc0->screen->base.fence.current, &buf->fence_wr);
    606    }
    607 
    608    if (width * height != elements) {
    609       offset += width * height * data_size;
    610       width = elements - width * height;
    611       nvc0_clear_buffer_push(pipe, res, offset, width * data_size,
    612                              data, data_size);
    613    }
    614 
    615    nvc0->dirty_3d |= NVC0_NEW_3D_FRAMEBUFFER;
    616 }
    617 
    618 static void
    619 nvc0_clear_depth_stencil(struct pipe_context *pipe,
    620                          struct pipe_surface *dst,
    621                          unsigned clear_flags,
    622                          double depth,
    623                          unsigned stencil,
    624                          unsigned dstx, unsigned dsty,
    625                          unsigned width, unsigned height,
    626                          bool render_condition_enabled)
    627 {
    628    struct nvc0_context *nvc0 = nvc0_context(pipe);
    629    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
    630    struct nv50_miptree *mt = nv50_miptree(dst->texture);
    631    struct nv50_surface *sf = nv50_surface(dst);
    632    uint32_t mode = 0;
    633    int unk = mt->base.base.target == PIPE_TEXTURE_2D;
    634    unsigned z;
    635 
    636    assert(dst->texture->target != PIPE_BUFFER);
    637 
    638    if (!PUSH_SPACE(push, 32 + sf->depth))
    639       return;
    640 
    641    PUSH_REFN (push, mt->base.bo, mt->base.domain | NOUVEAU_BO_WR);
    642 
    643    if (clear_flags & PIPE_CLEAR_DEPTH) {
    644       BEGIN_NVC0(push, NVC0_3D(CLEAR_DEPTH), 1);
    645       PUSH_DATAf(push, depth);
    646       mode |= NVC0_3D_CLEAR_BUFFERS_Z;
    647    }
    648 
    649    if (clear_flags & PIPE_CLEAR_STENCIL) {
    650       BEGIN_NVC0(push, NVC0_3D(CLEAR_STENCIL), 1);
    651       PUSH_DATA (push, stencil & 0xff);
    652       mode |= NVC0_3D_CLEAR_BUFFERS_S;
    653    }
    654 
    655    BEGIN_NVC0(push, NVC0_3D(SCREEN_SCISSOR_HORIZ), 2);
    656    PUSH_DATA (push, ( width << 16) | dstx);
    657    PUSH_DATA (push, (height << 16) | dsty);
    658 
    659    BEGIN_NVC0(push, NVC0_3D(ZETA_ADDRESS_HIGH), 5);
    660    PUSH_DATAh(push, mt->base.address + sf->offset);
    661    PUSH_DATA (push, mt->base.address + sf->offset);
    662    PUSH_DATA (push, nvc0_format_table[dst->format].rt);
    663    PUSH_DATA (push, mt->level[sf->base.u.tex.level].tile_mode);
    664    PUSH_DATA (push, mt->layer_stride >> 2);
    665    BEGIN_NVC0(push, NVC0_3D(ZETA_ENABLE), 1);
    666    PUSH_DATA (push, 1);
    667    BEGIN_NVC0(push, NVC0_3D(ZETA_HORIZ), 3);
    668    PUSH_DATA (push, sf->width);
    669    PUSH_DATA (push, sf->height);
    670    PUSH_DATA (push, (unk << 16) | (dst->u.tex.first_layer + sf->depth));
    671    BEGIN_NVC0(push, NVC0_3D(ZETA_BASE_LAYER), 1);
    672    PUSH_DATA (push, dst->u.tex.first_layer);
    673    IMMED_NVC0(push, NVC0_3D(MULTISAMPLE_MODE), mt->ms_mode);
    674 
    675    if (!render_condition_enabled)
    676       IMMED_NVC0(push, NVC0_3D(COND_MODE), NVC0_3D_COND_MODE_ALWAYS);
    677 
    678    BEGIN_NIC0(push, NVC0_3D(CLEAR_BUFFERS), sf->depth);
    679    for (z = 0; z < sf->depth; ++z) {
    680       PUSH_DATA (push, mode |
    681                  (z << NVC0_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    682    }
    683 
    684    if (!render_condition_enabled)
    685       IMMED_NVC0(push, NVC0_3D(COND_MODE), nvc0->cond_condmode);
    686 
    687    nvc0->dirty_3d |= NVC0_NEW_3D_FRAMEBUFFER;
    688 }
    689 
    690 void
    691 nvc0_clear(struct pipe_context *pipe, unsigned buffers,
    692            const union pipe_color_union *color,
    693            double depth, unsigned stencil)
    694 {
    695    struct nvc0_context *nvc0 = nvc0_context(pipe);
    696    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
    697    struct pipe_framebuffer_state *fb = &nvc0->framebuffer;
    698    unsigned i, j, k;
    699    uint32_t mode = 0;
    700 
    701    /* don't need NEW_BLEND, COLOR_MASK doesn't affect CLEAR_BUFFERS */
    702    if (!nvc0_state_validate_3d(nvc0, NVC0_NEW_3D_FRAMEBUFFER))
    703       return;
    704 
    705    if (buffers & PIPE_CLEAR_COLOR && fb->nr_cbufs) {
    706       BEGIN_NVC0(push, NVC0_3D(CLEAR_COLOR(0)), 4);
    707       PUSH_DATAf(push, color->f[0]);
    708       PUSH_DATAf(push, color->f[1]);
    709       PUSH_DATAf(push, color->f[2]);
    710       PUSH_DATAf(push, color->f[3]);
    711       if (buffers & PIPE_CLEAR_COLOR0)
    712          mode =
    713             NVC0_3D_CLEAR_BUFFERS_R | NVC0_3D_CLEAR_BUFFERS_G |
    714             NVC0_3D_CLEAR_BUFFERS_B | NVC0_3D_CLEAR_BUFFERS_A;
    715    }
    716 
    717    if (buffers & PIPE_CLEAR_DEPTH) {
    718       BEGIN_NVC0(push, NVC0_3D(CLEAR_DEPTH), 1);
    719       PUSH_DATA (push, fui(depth));
    720       mode |= NVC0_3D_CLEAR_BUFFERS_Z;
    721    }
    722 
    723    if (buffers & PIPE_CLEAR_STENCIL) {
    724       BEGIN_NVC0(push, NVC0_3D(CLEAR_STENCIL), 1);
    725       PUSH_DATA (push, stencil & 0xff);
    726       mode |= NVC0_3D_CLEAR_BUFFERS_S;
    727    }
    728 
    729    if (mode) {
    730       int zs_layers = 0, color0_layers = 0;
    731       if (fb->cbufs[0] && (mode & 0x3c))
    732          color0_layers = fb->cbufs[0]->u.tex.last_layer -
    733             fb->cbufs[0]->u.tex.first_layer + 1;
    734       if (fb->zsbuf && (mode & ~0x3c))
    735          zs_layers = fb->zsbuf->u.tex.last_layer -
    736             fb->zsbuf->u.tex.first_layer + 1;
    737 
    738       for (j = 0; j < MIN2(zs_layers, color0_layers); j++) {
    739          BEGIN_NVC0(push, NVC0_3D(CLEAR_BUFFERS), 1);
    740          PUSH_DATA(push, mode | (j << NVC0_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    741       }
    742       for (k = j; k < zs_layers; k++) {
    743          BEGIN_NVC0(push, NVC0_3D(CLEAR_BUFFERS), 1);
    744          PUSH_DATA(push, (mode & ~0x3c) | (k << NVC0_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    745       }
    746       for (k = j; k < color0_layers; k++) {
    747          BEGIN_NVC0(push, NVC0_3D(CLEAR_BUFFERS), 1);
    748          PUSH_DATA(push, (mode & 0x3c) | (k << NVC0_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    749       }
    750    }
    751 
    752    for (i = 1; i < fb->nr_cbufs; i++) {
    753       struct pipe_surface *sf = fb->cbufs[i];
    754       if (!sf || !(buffers & (PIPE_CLEAR_COLOR0 << i)))
    755          continue;
    756       for (j = 0; j <= sf->u.tex.last_layer - sf->u.tex.first_layer; j++) {
    757          BEGIN_NVC0(push, NVC0_3D(CLEAR_BUFFERS), 1);
    758          PUSH_DATA (push, (i << 6) | 0x3c |
    759                     (j << NVC0_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    760       }
    761    }
    762 }
    763 
    764 
    765 /* =============================== BLIT CODE ===================================
    766  */
    767 
    768 struct nvc0_blitter
    769 {
    770    struct nvc0_program *fp[NV50_BLIT_MAX_TEXTURE_TYPES][NV50_BLIT_MODES];
    771    struct nvc0_program vp;
    772 
    773    struct nv50_tsc_entry sampler[2]; /* nearest, bilinear */
    774 
    775    pipe_mutex mutex;
    776 
    777    struct nvc0_screen *screen;
    778 };
    779 
    780 struct nvc0_blitctx
    781 {
    782    struct nvc0_context *nvc0;
    783    struct nvc0_program *fp;
    784    uint8_t mode;
    785    uint16_t color_mask;
    786    uint8_t filter;
    787    uint8_t render_condition_enable;
    788    enum pipe_texture_target target;
    789    struct {
    790       struct pipe_framebuffer_state fb;
    791       struct nvc0_window_rect_stateobj window_rect;
    792       struct nvc0_rasterizer_stateobj *rast;
    793       struct nvc0_program *vp;
    794       struct nvc0_program *tcp;
    795       struct nvc0_program *tep;
    796       struct nvc0_program *gp;
    797       struct nvc0_program *fp;
    798       unsigned num_textures[5];
    799       unsigned num_samplers[5];
    800       struct pipe_sampler_view *texture[2];
    801       struct nv50_tsc_entry *sampler[2];
    802       unsigned min_samples;
    803       uint32_t dirty_3d;
    804    } saved;
    805    struct nvc0_rasterizer_stateobj rast;
    806 };
    807 
    808 static void
    809 nvc0_blitter_make_vp(struct nvc0_blitter *blit)
    810 {
    811    static const uint32_t code_nvc0[] =
    812    {
    813       0xfff11c26, 0x06000080, /* vfetch b64 $r4:$r5 a[0x80] */
    814       0xfff01c46, 0x06000090, /* vfetch b96 $r0:$r1:$r2 a[0x90] */
    815       0x13f01c26, 0x0a7e0070, /* export b64 o[0x70] $r4:$r5 */
    816       0x03f01c46, 0x0a7e0080, /* export b96 o[0x80] $r0:$r1:$r2 */
    817       0x00001de7, 0x80000000, /* exit */
    818    };
    819    static const uint32_t code_nve4[] =
    820    {
    821       0x00000007, 0x20000000, /* sched */
    822       0xfff11c26, 0x06000080, /* vfetch b64 $r4:$r5 a[0x80] */
    823       0xfff01c46, 0x06000090, /* vfetch b96 $r0:$r1:$r2 a[0x90] */
    824       0x13f01c26, 0x0a7e0070, /* export b64 o[0x70] $r4:$r5 */
    825       0x03f01c46, 0x0a7e0080, /* export b96 o[0x80] $r0:$r1:$r2 */
    826       0x00001de7, 0x80000000, /* exit */
    827    };
    828    static const uint32_t code_gk110[] =
    829    {
    830       0x00000000, 0x08000000, /* sched */
    831       0x401ffc12, 0x7ec7fc00, /* ld b64 $r4d a[0x80] 0x0 0x0 */
    832       0x481ffc02, 0x7ecbfc00, /* ld b96 $r0t a[0x90] 0x0 0x0 */
    833       0x381ffc12, 0x7f07fc00, /* st b64 a[0x70] $r4d 0x0 0x0 */
    834       0x401ffc02, 0x7f0bfc00, /* st b96 a[0x80] $r0t 0x0 0x0 */
    835       0x001c003c, 0x18000000, /* exit */
    836    };
    837    static const uint32_t code_gm107[] =
    838    {
    839       0xe4200701, 0x001d0400, /* sched (st 0x1 wr 0x0) (st 0x1 wr 0x1) (st 0x1 wr 0x2) */
    840       0x0807ff00, 0xefd87f80, /* ld b32 $r0 a[0x80] 0x0 */
    841       0x0847ff01, 0xefd87f80, /* ld b32 $r1 a[0x84] 0x0 */
    842       0x0907ff02, 0xefd87f80, /* ld b32 $r2 a[0x90] 0x0 */
    843       0xf0200761, 0x003f8400, /* sched (st 0x1 wr 0x3) (st 0x1 wr 0x4) (st 0x1 wt 0x1) */
    844       0x0947ff03, 0xefd87f80, /* ld b32 $r3 a[0x94] 0x0 */
    845       0x0987ff04, 0xefd87f80, /* ld b32 $r4 a[0x98] 0x0 */
    846       0x0707ff00, 0xeff07f80, /* st b32 a[0x70] $r0 0x0 */
    847       0xfc2017e1, 0x011f8404, /* sched (st 0x1 wt 0x2) (st 0x1 wt 0x4) (st 0x1 wt 0x8) */
    848       0x0747ff01, 0xeff07f80, /* st b32 a[0x74] $r1 0x0 */
    849       0x0807ff02, 0xeff07f80, /* st b32 a[0x80] $r2 0x0 */
    850       0x0847ff03, 0xeff07f80, /* st b32 a[0x84] $r3 0x0 */
    851       0xfde087e1, 0x001f8000, /* sched (st 0x1 wt 0x10) (st 0xf) (st 0x0) */
    852       0x0887ff04, 0xeff07f80, /* st b32 a[0x88] $r4 0x0 */
    853       0x0007000f, 0xe3000000, /* exit */
    854    };
    855 
    856    blit->vp.type = PIPE_SHADER_VERTEX;
    857    blit->vp.translated = true;
    858    if (blit->screen->base.class_3d >= GM107_3D_CLASS) {
    859       blit->vp.code = (uint32_t *)code_gm107; /* const_cast */
    860       blit->vp.code_size = sizeof(code_gm107);
    861    } else
    862    if (blit->screen->base.class_3d >= NVF0_3D_CLASS) {
    863       blit->vp.code = (uint32_t *)code_gk110; /* const_cast */
    864       blit->vp.code_size = sizeof(code_gk110);
    865    } else
    866    if (blit->screen->base.class_3d >= NVE4_3D_CLASS) {
    867       blit->vp.code = (uint32_t *)code_nve4; /* const_cast */
    868       blit->vp.code_size = sizeof(code_nve4);
    869    } else {
    870       blit->vp.code = (uint32_t *)code_nvc0; /* const_cast */
    871       blit->vp.code_size = sizeof(code_nvc0);
    872    }
    873    blit->vp.num_gprs = 6;
    874    blit->vp.vp.edgeflag = PIPE_MAX_ATTRIBS;
    875 
    876    blit->vp.hdr[0]  = 0x00020461; /* vertprog magic */
    877    blit->vp.hdr[4]  = 0x000ff000; /* no outputs read */
    878    blit->vp.hdr[6]  = 0x00000073; /* a[0x80].xy, a[0x90].xyz */
    879    blit->vp.hdr[13] = 0x00073000; /* o[0x70].xy, o[0x80].xyz */
    880 }
    881 
    882 static void
    883 nvc0_blitter_make_sampler(struct nvc0_blitter *blit)
    884 {
    885    /* clamp to edge, min/max lod = 0, nearest filtering */
    886 
    887    blit->sampler[0].id = -1;
    888 
    889    blit->sampler[0].tsc[0] = G80_TSC_0_SRGB_CONVERSION |
    890       (G80_TSC_WRAP_CLAMP_TO_EDGE << G80_TSC_0_ADDRESS_U__SHIFT) |
    891       (G80_TSC_WRAP_CLAMP_TO_EDGE << G80_TSC_0_ADDRESS_V__SHIFT) |
    892       (G80_TSC_WRAP_CLAMP_TO_EDGE << G80_TSC_0_ADDRESS_P__SHIFT);
    893    blit->sampler[0].tsc[1] =
    894       G80_TSC_1_MAG_FILTER_NEAREST |
    895       G80_TSC_1_MIN_FILTER_NEAREST |
    896       G80_TSC_1_MIP_FILTER_NONE;
    897 
    898    /* clamp to edge, min/max lod = 0, bilinear filtering */
    899 
    900    blit->sampler[1].id = -1;
    901 
    902    blit->sampler[1].tsc[0] = blit->sampler[0].tsc[0];
    903    blit->sampler[1].tsc[1] =
    904       G80_TSC_1_MAG_FILTER_LINEAR |
    905       G80_TSC_1_MIN_FILTER_LINEAR |
    906       G80_TSC_1_MIP_FILTER_NONE;
    907 }
    908 
    909 static void
    910 nvc0_blit_select_fp(struct nvc0_blitctx *ctx, const struct pipe_blit_info *info)
    911 {
    912    struct nvc0_blitter *blitter = ctx->nvc0->screen->blitter;
    913 
    914    const enum pipe_texture_target ptarg =
    915       nv50_blit_reinterpret_pipe_texture_target(info->src.resource->target);
    916 
    917    const unsigned targ = nv50_blit_texture_type(ptarg);
    918    const unsigned mode = ctx->mode;
    919 
    920    if (!blitter->fp[targ][mode]) {
    921       pipe_mutex_lock(blitter->mutex);
    922       if (!blitter->fp[targ][mode])
    923          blitter->fp[targ][mode] =
    924             nv50_blitter_make_fp(&ctx->nvc0->base.pipe, mode, ptarg);
    925       pipe_mutex_unlock(blitter->mutex);
    926    }
    927    ctx->fp = blitter->fp[targ][mode];
    928 }
    929 
    930 static void
    931 nvc0_blit_set_dst(struct nvc0_blitctx *ctx,
    932                   struct pipe_resource *res, unsigned level, unsigned layer,
    933                   enum pipe_format format)
    934 {
    935    struct nvc0_context *nvc0 = ctx->nvc0;
    936    struct pipe_context *pipe = &nvc0->base.pipe;
    937    struct pipe_surface templ;
    938 
    939    if (util_format_is_depth_or_stencil(format))
    940       templ.format = nv50_blit_zeta_to_colour_format(format);
    941    else
    942       templ.format = format;
    943 
    944    templ.u.tex.level = level;
    945    templ.u.tex.first_layer = templ.u.tex.last_layer = layer;
    946 
    947    if (layer == -1) {
    948       templ.u.tex.first_layer = 0;
    949       templ.u.tex.last_layer =
    950          (res->target == PIPE_TEXTURE_3D ? res->depth0 : res->array_size) - 1;
    951    }
    952 
    953    nvc0->framebuffer.cbufs[0] = nvc0_miptree_surface_new(pipe, res, &templ);
    954    nvc0->framebuffer.nr_cbufs = 1;
    955    nvc0->framebuffer.zsbuf = NULL;
    956    nvc0->framebuffer.width = nvc0->framebuffer.cbufs[0]->width;
    957    nvc0->framebuffer.height = nvc0->framebuffer.cbufs[0]->height;
    958 }
    959 
    960 static void
    961 nvc0_blit_set_src(struct nvc0_blitctx *ctx,
    962                   struct pipe_resource *res, unsigned level, unsigned layer,
    963                   enum pipe_format format, const uint8_t filter)
    964 {
    965    struct nvc0_context *nvc0 = ctx->nvc0;
    966    struct pipe_context *pipe = &nvc0->base.pipe;
    967    struct pipe_sampler_view templ;
    968    uint32_t flags;
    969    unsigned s;
    970    enum pipe_texture_target target;
    971 
    972    target = nv50_blit_reinterpret_pipe_texture_target(res->target);
    973 
    974    templ.format = format;
    975    templ.u.tex.first_layer = templ.u.tex.last_layer = layer;
    976    templ.u.tex.first_level = templ.u.tex.last_level = level;
    977    templ.swizzle_r = PIPE_SWIZZLE_X;
    978    templ.swizzle_g = PIPE_SWIZZLE_Y;
    979    templ.swizzle_b = PIPE_SWIZZLE_Z;
    980    templ.swizzle_a = PIPE_SWIZZLE_W;
    981 
    982    if (layer == -1) {
    983       templ.u.tex.first_layer = 0;
    984       templ.u.tex.last_layer =
    985          (res->target == PIPE_TEXTURE_3D ? res->depth0 : res->array_size) - 1;
    986    }
    987 
    988    flags = res->last_level ? 0 : NV50_TEXVIEW_SCALED_COORDS;
    989    flags |= NV50_TEXVIEW_ACCESS_RESOLVE;
    990    if (filter && res->nr_samples == 8)
    991       flags |= NV50_TEXVIEW_FILTER_MSAA8;
    992 
    993    nvc0->textures[4][0] = nvc0_create_texture_view(
    994       pipe, res, &templ, flags, target);
    995    nvc0->textures[4][1] = NULL;
    996 
    997    for (s = 0; s <= 3; ++s)
    998       nvc0->num_textures[s] = 0;
    999    nvc0->num_textures[4] = 1;
   1000 
   1001    templ.format = nv50_zs_to_s_format(format);
   1002    if (templ.format != format) {
   1003       nvc0->textures[4][1] = nvc0_create_texture_view(
   1004          pipe, res, &templ, flags, target);
   1005       nvc0->num_textures[4] = 2;
   1006    }
   1007 }
   1008 
   1009 static void
   1010 nvc0_blitctx_prepare_state(struct nvc0_blitctx *blit)
   1011 {
   1012    struct nouveau_pushbuf *push = blit->nvc0->base.pushbuf;
   1013 
   1014    /* TODO: maybe make this a MACRO (if we need more logic) ? */
   1015 
   1016    if (blit->nvc0->cond_query && !blit->render_condition_enable)
   1017       IMMED_NVC0(push, NVC0_3D(COND_MODE), NVC0_3D_COND_MODE_ALWAYS);
   1018 
   1019    /* blend state */
   1020    BEGIN_NVC0(push, NVC0_3D(COLOR_MASK(0)), 1);
   1021    PUSH_DATA (push, blit->color_mask);
   1022    IMMED_NVC0(push, NVC0_3D(BLEND_ENABLE(0)), 0);
   1023    IMMED_NVC0(push, NVC0_3D(LOGIC_OP_ENABLE), 0);
   1024 
   1025    /* rasterizer state */
   1026    IMMED_NVC0(push, NVC0_3D(FRAG_COLOR_CLAMP_EN), 0);
   1027    IMMED_NVC0(push, NVC0_3D(MULTISAMPLE_ENABLE), 0);
   1028    BEGIN_NVC0(push, NVC0_3D(MSAA_MASK(0)), 4);
   1029    PUSH_DATA (push, 0xffff);
   1030    PUSH_DATA (push, 0xffff);
   1031    PUSH_DATA (push, 0xffff);
   1032    PUSH_DATA (push, 0xffff);
   1033    BEGIN_NVC0(push, NVC0_3D(MACRO_POLYGON_MODE_FRONT), 1);
   1034    PUSH_DATA (push, NVC0_3D_MACRO_POLYGON_MODE_FRONT_FILL);
   1035    BEGIN_NVC0(push, NVC0_3D(MACRO_POLYGON_MODE_BACK), 1);
   1036    PUSH_DATA (push, NVC0_3D_MACRO_POLYGON_MODE_BACK_FILL);
   1037    IMMED_NVC0(push, NVC0_3D(POLYGON_SMOOTH_ENABLE), 0);
   1038    IMMED_NVC0(push, NVC0_3D(POLYGON_OFFSET_FILL_ENABLE), 0);
   1039    IMMED_NVC0(push, NVC0_3D(POLYGON_STIPPLE_ENABLE), 0);
   1040    IMMED_NVC0(push, NVC0_3D(CULL_FACE_ENABLE), 0);
   1041 
   1042    /* zsa state */
   1043    IMMED_NVC0(push, NVC0_3D(DEPTH_TEST_ENABLE), 0);
   1044    IMMED_NVC0(push, NVC0_3D(DEPTH_BOUNDS_EN), 0);
   1045    IMMED_NVC0(push, NVC0_3D(STENCIL_ENABLE), 0);
   1046    IMMED_NVC0(push, NVC0_3D(ALPHA_TEST_ENABLE), 0);
   1047 
   1048    /* disable transform feedback */
   1049    IMMED_NVC0(push, NVC0_3D(TFB_ENABLE), 0);
   1050 }
   1051 
   1052 static void
   1053 nvc0_blitctx_pre_blit(struct nvc0_blitctx *ctx,
   1054                       const struct pipe_blit_info *info)
   1055 {
   1056    struct nvc0_context *nvc0 = ctx->nvc0;
   1057    struct nvc0_blitter *blitter = nvc0->screen->blitter;
   1058    int s;
   1059 
   1060    ctx->saved.fb.width = nvc0->framebuffer.width;
   1061    ctx->saved.fb.height = nvc0->framebuffer.height;
   1062    ctx->saved.fb.samples = nvc0->framebuffer.samples;
   1063    ctx->saved.fb.layers = nvc0->framebuffer.layers;
   1064    ctx->saved.fb.nr_cbufs = nvc0->framebuffer.nr_cbufs;
   1065    ctx->saved.fb.cbufs[0] = nvc0->framebuffer.cbufs[0];
   1066    ctx->saved.fb.zsbuf = nvc0->framebuffer.zsbuf;
   1067 
   1068    ctx->saved.rast = nvc0->rast;
   1069 
   1070    ctx->saved.vp = nvc0->vertprog;
   1071    ctx->saved.tcp = nvc0->tctlprog;
   1072    ctx->saved.tep = nvc0->tevlprog;
   1073    ctx->saved.gp = nvc0->gmtyprog;
   1074    ctx->saved.fp = nvc0->fragprog;
   1075 
   1076    ctx->saved.min_samples = nvc0->min_samples;
   1077    ctx->saved.window_rect = nvc0->window_rect;
   1078 
   1079    nvc0->rast = &ctx->rast;
   1080 
   1081    nvc0->vertprog = &blitter->vp;
   1082    nvc0->tctlprog = NULL;
   1083    nvc0->tevlprog = NULL;
   1084    nvc0->gmtyprog = NULL;
   1085    nvc0->fragprog = ctx->fp;
   1086 
   1087    nvc0->window_rect.rects =
   1088       MIN2(info->num_window_rectangles, NVC0_MAX_WINDOW_RECTANGLES);
   1089    nvc0->window_rect.inclusive = info->window_rectangle_include;
   1090    if (nvc0->window_rect.rects)
   1091       memcpy(nvc0->window_rect.rect, info->window_rectangles,
   1092              sizeof(struct pipe_scissor_state) * nvc0->window_rect.rects);
   1093 
   1094    for (s = 0; s <= 4; ++s) {
   1095       ctx->saved.num_textures[s] = nvc0->num_textures[s];
   1096       ctx->saved.num_samplers[s] = nvc0->num_samplers[s];
   1097       nvc0->textures_dirty[s] = (1 << nvc0->num_textures[s]) - 1;
   1098       nvc0->samplers_dirty[s] = (1 << nvc0->num_samplers[s]) - 1;
   1099    }
   1100    ctx->saved.texture[0] = nvc0->textures[4][0];
   1101    ctx->saved.texture[1] = nvc0->textures[4][1];
   1102    ctx->saved.sampler[0] = nvc0->samplers[4][0];
   1103    ctx->saved.sampler[1] = nvc0->samplers[4][1];
   1104 
   1105    nvc0->samplers[4][0] = &blitter->sampler[ctx->filter];
   1106    nvc0->samplers[4][1] = &blitter->sampler[ctx->filter];
   1107 
   1108    for (s = 0; s <= 3; ++s)
   1109       nvc0->num_samplers[s] = 0;
   1110    nvc0->num_samplers[4] = 2;
   1111 
   1112    nvc0->min_samples = 1;
   1113 
   1114    ctx->saved.dirty_3d = nvc0->dirty_3d;
   1115 
   1116    nvc0->textures_dirty[4] |= 3;
   1117    nvc0->samplers_dirty[4] |= 3;
   1118 
   1119    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_FB);
   1120    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_TEX(4, 0));
   1121    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_TEX(4, 1));
   1122 
   1123    nvc0->dirty_3d = NVC0_NEW_3D_FRAMEBUFFER | NVC0_NEW_3D_MIN_SAMPLES |
   1124       NVC0_NEW_3D_VERTPROG | NVC0_NEW_3D_FRAGPROG |
   1125       NVC0_NEW_3D_TCTLPROG | NVC0_NEW_3D_TEVLPROG | NVC0_NEW_3D_GMTYPROG |
   1126       NVC0_NEW_3D_TEXTURES | NVC0_NEW_3D_SAMPLERS | NVC0_NEW_3D_WINDOW_RECTS;
   1127 }
   1128 
   1129 static void
   1130 nvc0_blitctx_post_blit(struct nvc0_blitctx *blit)
   1131 {
   1132    struct nvc0_context *nvc0 = blit->nvc0;
   1133    int s;
   1134 
   1135    pipe_surface_reference(&nvc0->framebuffer.cbufs[0], NULL);
   1136 
   1137    nvc0->framebuffer.width = blit->saved.fb.width;
   1138    nvc0->framebuffer.height = blit->saved.fb.height;
   1139    nvc0->framebuffer.samples = blit->saved.fb.samples;
   1140    nvc0->framebuffer.layers = blit->saved.fb.layers;
   1141    nvc0->framebuffer.nr_cbufs = blit->saved.fb.nr_cbufs;
   1142    nvc0->framebuffer.cbufs[0] = blit->saved.fb.cbufs[0];
   1143    nvc0->framebuffer.zsbuf = blit->saved.fb.zsbuf;
   1144 
   1145    nvc0->rast = blit->saved.rast;
   1146 
   1147    nvc0->vertprog = blit->saved.vp;
   1148    nvc0->tctlprog = blit->saved.tcp;
   1149    nvc0->tevlprog = blit->saved.tep;
   1150    nvc0->gmtyprog = blit->saved.gp;
   1151    nvc0->fragprog = blit->saved.fp;
   1152 
   1153    nvc0->min_samples = blit->saved.min_samples;
   1154    nvc0->window_rect = blit->saved.window_rect;
   1155 
   1156    pipe_sampler_view_reference(&nvc0->textures[4][0], NULL);
   1157    pipe_sampler_view_reference(&nvc0->textures[4][1], NULL);
   1158 
   1159    for (s = 0; s <= 4; ++s) {
   1160       nvc0->num_textures[s] = blit->saved.num_textures[s];
   1161       nvc0->num_samplers[s] = blit->saved.num_samplers[s];
   1162       nvc0->textures_dirty[s] = (1 << nvc0->num_textures[s]) - 1;
   1163       nvc0->samplers_dirty[s] = (1 << nvc0->num_samplers[s]) - 1;
   1164    }
   1165    nvc0->textures[4][0] = blit->saved.texture[0];
   1166    nvc0->textures[4][1] = blit->saved.texture[1];
   1167    nvc0->samplers[4][0] = blit->saved.sampler[0];
   1168    nvc0->samplers[4][1] = blit->saved.sampler[1];
   1169 
   1170    nvc0->textures_dirty[4] |= 3;
   1171    nvc0->samplers_dirty[4] |= 3;
   1172 
   1173    if (nvc0->cond_query && !blit->render_condition_enable)
   1174       nvc0->base.pipe.render_condition(&nvc0->base.pipe, nvc0->cond_query,
   1175                                        nvc0->cond_cond, nvc0->cond_mode);
   1176 
   1177    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_VTX_TMP);
   1178    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_FB);
   1179    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_TEX(4, 0));
   1180    nouveau_bufctx_reset(nvc0->bufctx_3d, NVC0_BIND_3D_TEX(4, 1));
   1181    nouveau_scratch_done(&nvc0->base);
   1182 
   1183    nvc0->dirty_3d = blit->saved.dirty_3d |
   1184       (NVC0_NEW_3D_FRAMEBUFFER | NVC0_NEW_3D_SCISSOR | NVC0_NEW_3D_SAMPLE_MASK |
   1185        NVC0_NEW_3D_RASTERIZER | NVC0_NEW_3D_ZSA | NVC0_NEW_3D_BLEND |
   1186        NVC0_NEW_3D_VIEWPORT | NVC0_NEW_3D_WINDOW_RECTS |
   1187        NVC0_NEW_3D_TEXTURES | NVC0_NEW_3D_SAMPLERS |
   1188        NVC0_NEW_3D_VERTPROG | NVC0_NEW_3D_FRAGPROG |
   1189        NVC0_NEW_3D_TCTLPROG | NVC0_NEW_3D_TEVLPROG | NVC0_NEW_3D_GMTYPROG |
   1190        NVC0_NEW_3D_TFB_TARGETS | NVC0_NEW_3D_VERTEX | NVC0_NEW_3D_ARRAYS);
   1191    nvc0->scissors_dirty |= 1;
   1192    nvc0->viewports_dirty |= 1;
   1193 
   1194    nvc0->base.pipe.set_min_samples(&nvc0->base.pipe, blit->saved.min_samples);
   1195 }
   1196 
   1197 static void
   1198 nvc0_blit_3d(struct nvc0_context *nvc0, const struct pipe_blit_info *info)
   1199 {
   1200    struct nvc0_blitctx *blit = nvc0->blit;
   1201    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
   1202    struct pipe_resource *src = info->src.resource;
   1203    struct pipe_resource *dst = info->dst.resource;
   1204    struct nouveau_bo *vtxbuf_bo;
   1205    uint32_t stride, length, *vbuf;
   1206    uint64_t vtxbuf;
   1207    int32_t minx, maxx, miny, maxy;
   1208    int32_t i, n;
   1209    float x0, x1, y0, y1, z;
   1210    float dz;
   1211    float x_range, y_range;
   1212 
   1213    blit->mode = nv50_blit_select_mode(info);
   1214    blit->color_mask = nv50_blit_derive_color_mask(info);
   1215    blit->filter = nv50_blit_get_filter(info);
   1216    blit->render_condition_enable = info->render_condition_enable;
   1217 
   1218    nvc0_blit_select_fp(blit, info);
   1219    nvc0_blitctx_pre_blit(blit, info);
   1220 
   1221    nvc0_blit_set_dst(blit, dst, info->dst.level, -1, info->dst.format);
   1222    nvc0_blit_set_src(blit, src, info->src.level, -1, info->src.format,
   1223                      blit->filter);
   1224 
   1225    nvc0_blitctx_prepare_state(blit);
   1226 
   1227    nvc0_state_validate_3d(nvc0, ~0);
   1228 
   1229    x_range = (float)info->src.box.width / (float)info->dst.box.width;
   1230    y_range = (float)info->src.box.height / (float)info->dst.box.height;
   1231 
   1232    x0 = (float)info->src.box.x - x_range * (float)info->dst.box.x;
   1233    y0 = (float)info->src.box.y - y_range * (float)info->dst.box.y;
   1234 
   1235    x1 = x0 + 32768.0f * x_range;
   1236    y1 = y0 + 32768.0f * y_range;
   1237 
   1238    x0 *= (float)(1 << nv50_miptree(src)->ms_x);
   1239    x1 *= (float)(1 << nv50_miptree(src)->ms_x);
   1240    y0 *= (float)(1 << nv50_miptree(src)->ms_y);
   1241    y1 *= (float)(1 << nv50_miptree(src)->ms_y);
   1242 
   1243    dz = (float)info->src.box.depth / (float)info->dst.box.depth;
   1244    z = (float)info->src.box.z;
   1245    if (nv50_miptree(src)->layout_3d)
   1246       z += 0.5f * dz;
   1247 
   1248    if (src->last_level > 0) {
   1249       /* If there are mip maps, GPU always assumes normalized coordinates. */
   1250       const unsigned l = info->src.level;
   1251       const float fh = u_minify(src->width0 << nv50_miptree(src)->ms_x, l);
   1252       const float fv = u_minify(src->height0 << nv50_miptree(src)->ms_y, l);
   1253       x0 /= fh;
   1254       x1 /= fh;
   1255       y0 /= fv;
   1256       y1 /= fv;
   1257       if (nv50_miptree(src)->layout_3d) {
   1258          z /= u_minify(src->depth0, l);
   1259          dz /= u_minify(src->depth0, l);
   1260       }
   1261    }
   1262 
   1263    IMMED_NVC0(push, NVC0_3D(VIEWPORT_TRANSFORM_EN), 0);
   1264    IMMED_NVC0(push, NVC0_3D(VIEW_VOLUME_CLIP_CTRL), 0x2 |
   1265               NVC0_3D_VIEW_VOLUME_CLIP_CTRL_DEPTH_RANGE_0_1);
   1266    BEGIN_NVC0(push, NVC0_3D(VIEWPORT_HORIZ(0)), 2);
   1267    PUSH_DATA (push, nvc0->framebuffer.width << 16);
   1268    PUSH_DATA (push, nvc0->framebuffer.height << 16);
   1269 
   1270    /* Draw a large triangle in screen coordinates covering the whole
   1271     * render target, with scissors defining the destination region.
   1272     * The vertex is supplied with non-normalized texture coordinates
   1273     * arranged in a way to yield the desired offset and scale.
   1274     */
   1275 
   1276    minx = info->dst.box.x;
   1277    maxx = info->dst.box.x + info->dst.box.width;
   1278    miny = info->dst.box.y;
   1279    maxy = info->dst.box.y + info->dst.box.height;
   1280    if (info->scissor_enable) {
   1281       minx = MAX2(minx, info->scissor.minx);
   1282       maxx = MIN2(maxx, info->scissor.maxx);
   1283       miny = MAX2(miny, info->scissor.miny);
   1284       maxy = MIN2(maxy, info->scissor.maxy);
   1285    }
   1286    BEGIN_NVC0(push, NVC0_3D(SCISSOR_HORIZ(0)), 2);
   1287    PUSH_DATA (push, (maxx << 16) | minx);
   1288    PUSH_DATA (push, (maxy << 16) | miny);
   1289 
   1290    stride = (3 + 2) * 4;
   1291    length = stride * 3 * info->dst.box.depth;
   1292 
   1293    vbuf = nouveau_scratch_get(&nvc0->base, length, &vtxbuf, &vtxbuf_bo);
   1294    if (!vbuf) {
   1295       assert(vbuf);
   1296       return;
   1297    }
   1298 
   1299    BCTX_REFN_bo(nvc0->bufctx_3d, 3D_VTX_TMP,
   1300                 NOUVEAU_BO_GART | NOUVEAU_BO_RD, vtxbuf_bo);
   1301    nouveau_pushbuf_validate(push);
   1302 
   1303    BEGIN_NVC0(push, NVC0_3D(VERTEX_ARRAY_FETCH(0)), 4);
   1304    PUSH_DATA (push, NVC0_3D_VERTEX_ARRAY_FETCH_ENABLE | stride <<
   1305                     NVC0_3D_VERTEX_ARRAY_FETCH_STRIDE__SHIFT);
   1306    PUSH_DATAh(push, vtxbuf);
   1307    PUSH_DATA (push, vtxbuf);
   1308    PUSH_DATA (push, 0);
   1309    BEGIN_NVC0(push, NVC0_3D(VERTEX_ARRAY_LIMIT_HIGH(0)), 2);
   1310    PUSH_DATAh(push, vtxbuf + length - 1);
   1311    PUSH_DATA (push, vtxbuf + length - 1);
   1312 
   1313    n = MAX2(2, nvc0->state.num_vtxelts);
   1314 
   1315    BEGIN_NVC0(push, NVC0_3D(VERTEX_ATTRIB_FORMAT(0)), n);
   1316    PUSH_DATA (push, NVC0_3D_VERTEX_ATTRIB_FORMAT_TYPE_FLOAT |
   1317                     NVC0_3D_VERTEX_ATTRIB_FORMAT_SIZE_32_32 | 0x00 <<
   1318                     NVC0_3D_VERTEX_ATTRIB_FORMAT_OFFSET__SHIFT);
   1319    PUSH_DATA (push, NVC0_3D_VERTEX_ATTRIB_FORMAT_TYPE_FLOAT |
   1320                     NVC0_3D_VERTEX_ATTRIB_FORMAT_SIZE_32_32_32 | 0x08 <<
   1321                     NVC0_3D_VERTEX_ATTRIB_FORMAT_OFFSET__SHIFT);
   1322    for (i = 2; i < n; i++) {
   1323       PUSH_DATA(push, NVC0_3D_VERTEX_ATTRIB_FORMAT_TYPE_FLOAT |
   1324                       NVC0_3D_VERTEX_ATTRIB_FORMAT_SIZE_32 |
   1325                       NVC0_3D_VERTEX_ATTRIB_FORMAT_CONST);
   1326    }
   1327    for (i = 1; i < n; ++i)
   1328       IMMED_NVC0(push, NVC0_3D(VERTEX_ARRAY_FETCH(i)), 0);
   1329    if (nvc0->state.instance_elts) {
   1330       nvc0->state.instance_elts = 0;
   1331       BEGIN_NVC0(push, NVC0_3D(MACRO_VERTEX_ARRAY_PER_INSTANCE), 2);
   1332       PUSH_DATA (push, n);
   1333       PUSH_DATA (push, 0);
   1334    }
   1335    nvc0->state.num_vtxelts = 2;
   1336 
   1337    if (nvc0->state.prim_restart) {
   1338       IMMED_NVC0(push, NVC0_3D(PRIM_RESTART_ENABLE), 0);
   1339       nvc0->state.prim_restart = 0;
   1340    }
   1341 
   1342    if (nvc0->state.index_bias) {
   1343       IMMED_NVC0(push, NVC0_3D(VB_ELEMENT_BASE), 0);
   1344       IMMED_NVC0(push, NVC0_3D(VERTEX_ID_BASE), 0);
   1345       nvc0->state.index_bias = 0;
   1346    }
   1347 
   1348    for (i = 0; i < info->dst.box.depth; ++i, z += dz) {
   1349       if (info->dst.box.z + i) {
   1350          BEGIN_NVC0(push, NVC0_3D(LAYER), 1);
   1351          PUSH_DATA (push, info->dst.box.z + i);
   1352       }
   1353 
   1354       *(vbuf++) = fui(0.0f);
   1355       *(vbuf++) = fui(0.0f);
   1356       *(vbuf++) = fui(x0);
   1357       *(vbuf++) = fui(y0);
   1358       *(vbuf++) = fui(z);
   1359 
   1360       *(vbuf++) = fui(32768 << nv50_miptree(dst)->ms_x);
   1361       *(vbuf++) = fui(0.0f);
   1362       *(vbuf++) = fui(x1);
   1363       *(vbuf++) = fui(y0);
   1364       *(vbuf++) = fui(z);
   1365 
   1366       *(vbuf++) = fui(0.0f);
   1367       *(vbuf++) = fui(32768 << nv50_miptree(dst)->ms_y);
   1368       *(vbuf++) = fui(x0);
   1369       *(vbuf++) = fui(y1);
   1370       *(vbuf++) = fui(z);
   1371 
   1372       IMMED_NVC0(push, NVC0_3D(VERTEX_BEGIN_GL),
   1373                        NVC0_3D_VERTEX_BEGIN_GL_PRIMITIVE_TRIANGLES);
   1374       BEGIN_NVC0(push, NVC0_3D(VERTEX_BUFFER_FIRST), 2);
   1375       PUSH_DATA (push, i * 3);
   1376       PUSH_DATA (push, 3);
   1377       IMMED_NVC0(push, NVC0_3D(VERTEX_END_GL), 0);
   1378    }
   1379    if (info->dst.box.z + info->dst.box.depth - 1)
   1380       IMMED_NVC0(push, NVC0_3D(LAYER), 0);
   1381 
   1382    nvc0_blitctx_post_blit(blit);
   1383 
   1384    /* restore viewport transform */
   1385    IMMED_NVC0(push, NVC0_3D(VIEWPORT_TRANSFORM_EN), 1);
   1386 }
   1387 
   1388 static void
   1389 nvc0_blit_eng2d(struct nvc0_context *nvc0, const struct pipe_blit_info *info)
   1390 {
   1391    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
   1392    struct nv50_miptree *dst = nv50_miptree(info->dst.resource);
   1393    struct nv50_miptree *src = nv50_miptree(info->src.resource);
   1394    const int32_t srcx_adj = info->src.box.width < 0 ? -1 : 0;
   1395    const int32_t srcy_adj = info->src.box.height < 0 ? -1 : 0;
   1396    const int dz = info->dst.box.z;
   1397    const int sz = info->src.box.z;
   1398    uint32_t dstw, dsth;
   1399    int32_t dstx, dsty;
   1400    int64_t srcx, srcy;
   1401    int64_t du_dx, dv_dy;
   1402    int i;
   1403    uint32_t mode;
   1404    uint32_t mask = nv50_blit_eng2d_get_mask(info);
   1405    bool b;
   1406 
   1407    mode = nv50_blit_get_filter(info) ?
   1408       NV50_2D_BLIT_CONTROL_FILTER_BILINEAR :
   1409       NV50_2D_BLIT_CONTROL_FILTER_POINT_SAMPLE;
   1410    mode |= (src->base.base.nr_samples > dst->base.base.nr_samples) ?
   1411       NV50_2D_BLIT_CONTROL_ORIGIN_CORNER : NV50_2D_BLIT_CONTROL_ORIGIN_CENTER;
   1412 
   1413    du_dx = ((int64_t)info->src.box.width << 32) / info->dst.box.width;
   1414    dv_dy = ((int64_t)info->src.box.height << 32) / info->dst.box.height;
   1415 
   1416    b = info->dst.format == info->src.format;
   1417    nvc0_2d_texture_set(push, 1, dst, info->dst.level, dz, info->dst.format, b);
   1418    nvc0_2d_texture_set(push, 0, src, info->src.level, sz, info->src.format, b);
   1419 
   1420    if (info->scissor_enable) {
   1421       BEGIN_NVC0(push, NVC0_2D(CLIP_X), 5);
   1422       PUSH_DATA (push, info->scissor.minx << dst->ms_x);
   1423       PUSH_DATA (push, info->scissor.miny << dst->ms_y);
   1424       PUSH_DATA (push, (info->scissor.maxx - info->scissor.minx) << dst->ms_x);
   1425       PUSH_DATA (push, (info->scissor.maxy - info->scissor.miny) << dst->ms_y);
   1426       PUSH_DATA (push, 1); /* enable */
   1427    }
   1428 
   1429    if (nvc0->cond_query && info->render_condition_enable)
   1430       IMMED_NVC0(push, NVC0_2D(COND_MODE), nvc0->cond_condmode);
   1431 
   1432    if (mask != 0xffffffff) {
   1433       IMMED_NVC0(push, NVC0_2D(ROP), 0xca); /* DPSDxax */
   1434       IMMED_NVC0(push, NVC0_2D(PATTERN_COLOR_FORMAT),
   1435                        NV50_2D_PATTERN_COLOR_FORMAT_A8R8G8B8);
   1436       BEGIN_NVC0(push, NVC0_2D(PATTERN_BITMAP_COLOR(0)), 4);
   1437       PUSH_DATA (push, 0x00000000);
   1438       PUSH_DATA (push, mask);
   1439       PUSH_DATA (push, 0xffffffff);
   1440       PUSH_DATA (push, 0xffffffff);
   1441       IMMED_NVC0(push, NVC0_2D(OPERATION), NV50_2D_OPERATION_ROP);
   1442    } else
   1443    if (info->src.format != info->dst.format) {
   1444       if (info->src.format == PIPE_FORMAT_R8_UNORM ||
   1445           info->src.format == PIPE_FORMAT_R8_SNORM ||
   1446           info->src.format == PIPE_FORMAT_R16_UNORM ||
   1447           info->src.format == PIPE_FORMAT_R16_SNORM ||
   1448           info->src.format == PIPE_FORMAT_R16_FLOAT ||
   1449           info->src.format == PIPE_FORMAT_R32_FLOAT) {
   1450          mask = 0xffff0000; /* also makes condition for OPERATION reset true */
   1451          BEGIN_NVC0(push, NVC0_2D(BETA4), 2);
   1452          PUSH_DATA (push, mask);
   1453          PUSH_DATA (push, NV50_2D_OPERATION_SRCCOPY_PREMULT);
   1454       } else
   1455       if (info->src.format == PIPE_FORMAT_A8_UNORM) {
   1456          mask = 0xff000000;
   1457          BEGIN_NVC0(push, NVC0_2D(BETA4), 2);
   1458          PUSH_DATA (push, mask);
   1459          PUSH_DATA (push, NV50_2D_OPERATION_SRCCOPY_PREMULT);
   1460       }
   1461    }
   1462 
   1463    if (src->ms_x > dst->ms_x || src->ms_y > dst->ms_y) {
   1464       /* ms_x is always >= ms_y */
   1465       du_dx <<= src->ms_x - dst->ms_x;
   1466       dv_dy <<= src->ms_y - dst->ms_y;
   1467    } else {
   1468       du_dx >>= dst->ms_x - src->ms_x;
   1469       dv_dy >>= dst->ms_y - src->ms_y;
   1470    }
   1471 
   1472    srcx = (int64_t)(info->src.box.x + srcx_adj) << (src->ms_x + 32);
   1473    srcy = (int64_t)(info->src.box.y + srcy_adj) << (src->ms_y + 32);
   1474 
   1475    if (src->base.base.nr_samples > dst->base.base.nr_samples) {
   1476       /* center src coorinates for proper MS resolve filtering */
   1477       srcx += (int64_t)1 << (src->ms_x + 31);
   1478       srcy += (int64_t)1 << (src->ms_y + 31);
   1479    }
   1480 
   1481    dstx = info->dst.box.x << dst->ms_x;
   1482    dsty = info->dst.box.y << dst->ms_y;
   1483 
   1484    dstw = info->dst.box.width << dst->ms_x;
   1485    dsth = info->dst.box.height << dst->ms_y;
   1486 
   1487    if (dstx < 0) {
   1488       dstw += dstx;
   1489       srcx -= du_dx * dstx;
   1490       dstx = 0;
   1491    }
   1492    if (dsty < 0) {
   1493       dsth += dsty;
   1494       srcy -= dv_dy * dsty;
   1495       dsty = 0;
   1496    }
   1497 
   1498    IMMED_NVC0(push, NVC0_2D(BLIT_CONTROL), mode);
   1499    BEGIN_NVC0(push, NVC0_2D(BLIT_DST_X), 4);
   1500    PUSH_DATA (push, dstx);
   1501    PUSH_DATA (push, dsty);
   1502    PUSH_DATA (push, dstw);
   1503    PUSH_DATA (push, dsth);
   1504    BEGIN_NVC0(push, NVC0_2D(BLIT_DU_DX_FRACT), 4);
   1505    PUSH_DATA (push, du_dx);
   1506    PUSH_DATA (push, du_dx >> 32);
   1507    PUSH_DATA (push, dv_dy);
   1508    PUSH_DATA (push, dv_dy >> 32);
   1509 
   1510    BCTX_REFN(nvc0->bufctx, 2D, &dst->base, WR);
   1511    BCTX_REFN(nvc0->bufctx, 2D, &src->base, RD);
   1512    nouveau_pushbuf_bufctx(nvc0->base.pushbuf, nvc0->bufctx);
   1513    if (nouveau_pushbuf_validate(nvc0->base.pushbuf))
   1514       return;
   1515 
   1516    for (i = 0; i < info->dst.box.depth; ++i) {
   1517       if (i > 0) {
   1518          /* no scaling in z-direction possible for eng2d blits */
   1519          if (dst->layout_3d) {
   1520             BEGIN_NVC0(push, NVC0_2D(DST_LAYER), 1);
   1521             PUSH_DATA (push, info->dst.box.z + i);
   1522          } else {
   1523             const unsigned z = info->dst.box.z + i;
   1524             const uint64_t address = dst->base.address +
   1525                dst->level[info->dst.level].offset +
   1526                z * dst->layer_stride;
   1527             BEGIN_NVC0(push, NVC0_2D(DST_ADDRESS_HIGH), 2);
   1528             PUSH_DATAh(push, address);
   1529             PUSH_DATA (push, address);
   1530          }
   1531          if (src->layout_3d) {
   1532             /* not possible because of depth tiling */
   1533             assert(0);
   1534          } else {
   1535             const unsigned z = info->src.box.z + i;
   1536             const uint64_t address = src->base.address +
   1537                src->level[info->src.level].offset +
   1538                z * src->layer_stride;
   1539             BEGIN_NVC0(push, NVC0_2D(SRC_ADDRESS_HIGH), 2);
   1540             PUSH_DATAh(push, address);
   1541             PUSH_DATA (push, address);
   1542          }
   1543          BEGIN_NVC0(push, NVC0_2D(BLIT_SRC_Y_INT), 1); /* trigger */
   1544          PUSH_DATA (push, srcy >> 32);
   1545       } else {
   1546          BEGIN_NVC0(push, NVC0_2D(BLIT_SRC_X_FRACT), 4);
   1547          PUSH_DATA (push, srcx);
   1548          PUSH_DATA (push, srcx >> 32);
   1549          PUSH_DATA (push, srcy);
   1550          PUSH_DATA (push, srcy >> 32);
   1551       }
   1552    }
   1553    nvc0_resource_validate(&dst->base, NOUVEAU_BO_WR);
   1554    nvc0_resource_validate(&src->base, NOUVEAU_BO_RD);
   1555 
   1556    nouveau_bufctx_reset(nvc0->bufctx, NVC0_BIND_2D);
   1557 
   1558    if (info->scissor_enable)
   1559       IMMED_NVC0(push, NVC0_2D(CLIP_ENABLE), 0);
   1560    if (mask != 0xffffffff)
   1561       IMMED_NVC0(push, NVC0_2D(OPERATION), NV50_2D_OPERATION_SRCCOPY);
   1562    if (nvc0->cond_query && info->render_condition_enable)
   1563       IMMED_NVC0(push, NVC0_2D(COND_MODE), NV50_2D_COND_MODE_ALWAYS);
   1564 }
   1565 
   1566 static void
   1567 nvc0_blit(struct pipe_context *pipe, const struct pipe_blit_info *info)
   1568 {
   1569    struct nvc0_context *nvc0 = nvc0_context(pipe);
   1570    struct nouveau_pushbuf *push = nvc0->base.pushbuf;
   1571    bool eng3d = false;
   1572 
   1573    if (util_format_is_depth_or_stencil(info->dst.resource->format)) {
   1574       if (!(info->mask & PIPE_MASK_ZS))
   1575          return;
   1576       if (info->dst.resource->format == PIPE_FORMAT_Z32_FLOAT ||
   1577           info->dst.resource->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
   1578          eng3d = true;
   1579       if (info->filter != PIPE_TEX_FILTER_NEAREST)
   1580          eng3d = true;
   1581    } else {
   1582       if (!(info->mask & PIPE_MASK_RGBA))
   1583          return;
   1584       if (info->mask != PIPE_MASK_RGBA)
   1585          eng3d = true;
   1586    }
   1587 
   1588    if (nv50_miptree(info->src.resource)->layout_3d) {
   1589       eng3d = true;
   1590    } else
   1591    if (info->src.box.depth != info->dst.box.depth) {
   1592       eng3d = true;
   1593       debug_printf("blit: cannot filter array or cube textures in z direction");
   1594    }
   1595 
   1596    if (!eng3d && info->dst.format != info->src.format) {
   1597       if (!nv50_2d_dst_format_faithful(info->dst.format)) {
   1598          eng3d = true;
   1599       } else
   1600       if (!nv50_2d_src_format_faithful(info->src.format)) {
   1601          if (!util_format_is_luminance(info->src.format)) {
   1602             if (!nv50_2d_dst_format_ops_supported(info->dst.format))
   1603                eng3d = true;
   1604             else
   1605             if (util_format_is_intensity(info->src.format))
   1606                eng3d = info->src.format != PIPE_FORMAT_I8_UNORM;
   1607             else
   1608             if (util_format_is_alpha(info->src.format))
   1609                eng3d = info->src.format != PIPE_FORMAT_A8_UNORM;
   1610             else
   1611                eng3d = !nv50_2d_format_supported(info->src.format);
   1612          }
   1613       } else
   1614       if (util_format_is_luminance_alpha(info->src.format))
   1615          eng3d = true;
   1616    }
   1617 
   1618    if (info->src.resource->nr_samples == 8 &&
   1619        info->dst.resource->nr_samples <= 1)
   1620       eng3d = true;
   1621 #if 0
   1622    /* FIXME: can't make this work with eng2d anymore, at least not on nv50 */
   1623    if (info->src.resource->nr_samples > 1 ||
   1624        info->dst.resource->nr_samples > 1)
   1625       eng3d = true;
   1626 #endif
   1627    /* FIXME: find correct src coordinates adjustments */
   1628    if ((info->src.box.width !=  info->dst.box.width &&
   1629         info->src.box.width != -info->dst.box.width) ||
   1630        (info->src.box.height !=  info->dst.box.height &&
   1631         info->src.box.height != -info->dst.box.height))
   1632       eng3d = true;
   1633 
   1634    if (info->num_window_rectangles > 0 || info->window_rectangle_include)
   1635       eng3d = true;
   1636 
   1637    if (nvc0->screen->num_occlusion_queries_active)
   1638       IMMED_NVC0(push, NVC0_3D(SAMPLECNT_ENABLE), 0);
   1639 
   1640    if (!eng3d)
   1641       nvc0_blit_eng2d(nvc0, info);
   1642    else
   1643       nvc0_blit_3d(nvc0, info);
   1644 
   1645    if (nvc0->screen->num_occlusion_queries_active)
   1646       IMMED_NVC0(push, NVC0_3D(SAMPLECNT_ENABLE), 1);
   1647 
   1648    NOUVEAU_DRV_STAT(&nvc0->screen->base, tex_blit_count, 1);
   1649 }
   1650 
   1651 static void
   1652 nvc0_flush_resource(struct pipe_context *ctx,
   1653                     struct pipe_resource *resource)
   1654 {
   1655 }
   1656 
   1657 bool
   1658 nvc0_blitter_create(struct nvc0_screen *screen)
   1659 {
   1660    screen->blitter = CALLOC_STRUCT(nvc0_blitter);
   1661    if (!screen->blitter) {
   1662       NOUVEAU_ERR("failed to allocate blitter struct\n");
   1663       return false;
   1664    }
   1665    screen->blitter->screen = screen;
   1666 
   1667    pipe_mutex_init(screen->blitter->mutex);
   1668 
   1669    nvc0_blitter_make_vp(screen->blitter);
   1670    nvc0_blitter_make_sampler(screen->blitter);
   1671 
   1672    return true;
   1673 }
   1674 
   1675 void
   1676 nvc0_blitter_destroy(struct nvc0_screen *screen)
   1677 {
   1678    struct nvc0_blitter *blitter = screen->blitter;
   1679    unsigned i, m;
   1680 
   1681    for (i = 0; i < NV50_BLIT_MAX_TEXTURE_TYPES; ++i) {
   1682       for (m = 0; m < NV50_BLIT_MODES; ++m) {
   1683          struct nvc0_program *prog = blitter->fp[i][m];
   1684          if (prog) {
   1685             nvc0_program_destroy(NULL, prog);
   1686             FREE((void *)prog->pipe.tokens);
   1687             FREE(prog);
   1688          }
   1689       }
   1690    }
   1691 
   1692    pipe_mutex_destroy(blitter->mutex);
   1693    FREE(blitter);
   1694 }
   1695 
   1696 bool
   1697 nvc0_blitctx_create(struct nvc0_context *nvc0)
   1698 {
   1699    nvc0->blit = CALLOC_STRUCT(nvc0_blitctx);
   1700    if (!nvc0->blit) {
   1701       NOUVEAU_ERR("failed to allocate blit context\n");
   1702       return false;
   1703    }
   1704 
   1705    nvc0->blit->nvc0 = nvc0;
   1706 
   1707    nvc0->blit->rast.pipe.half_pixel_center = 1;
   1708 
   1709    return true;
   1710 }
   1711 
   1712 void
   1713 nvc0_blitctx_destroy(struct nvc0_context *nvc0)
   1714 {
   1715    FREE(nvc0->blit);
   1716 }
   1717 
   1718 void
   1719 nvc0_init_surface_functions(struct nvc0_context *nvc0)
   1720 {
   1721    struct pipe_context *pipe = &nvc0->base.pipe;
   1722 
   1723    pipe->resource_copy_region = nvc0_resource_copy_region;
   1724    pipe->blit = nvc0_blit;
   1725    pipe->flush_resource = nvc0_flush_resource;
   1726    pipe->clear_render_target = nvc0_clear_render_target;
   1727    pipe->clear_depth_stencil = nvc0_clear_depth_stencil;
   1728    pipe->clear_texture = nv50_clear_texture;
   1729    pipe->clear_buffer = nvc0_clear_buffer;
   1730 }
   1731