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  1. /**********************************************************
  2.  * Copyright 2009 VMware, Inc.  All rights reserved.
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person
  5.  * obtaining a copy of this software and associated documentation
  6.  * files (the "Software"), to deal in the Software without
  7.  * restriction, including without limitation the rights to use, copy,
  8.  * modify, merge, publish, distribute, sublicense, and/or sell copies
  9.  * of the Software, and to permit persons to whom the Software is
  10.  * furnished to do so, subject to the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice shall be
  13.  * included in all copies or substantial portions of the Software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16.  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18.  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19.  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20.  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21.  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22.  * SOFTWARE.
  23.  *
  24.  **********************************************************/
  25.  
  26. /**
  27.  * @file
  28.  *
  29.  * Wrappers for DRM ioctl functionlaity used by the rest of the vmw
  30.  * drm winsys.
  31.  *
  32.  * Based on svgaicd_escape.c
  33.  */
  34.  
  35.  
  36. #include "svga_cmd.h"
  37. #include "util/u_memory.h"
  38. #include "util/u_math.h"
  39. #include "svgadump/svga_dump.h"
  40. #include "vmw_screen.h"
  41. #include "vmw_context.h"
  42. #include "vmw_fence.h"
  43. #include "xf86drm.h"
  44. #include "vmwgfx_drm.h"
  45. #include "svga3d_caps.h"
  46.  
  47. #include "os/os_mman.h"
  48.  
  49. #include <errno.h>
  50. #include <unistd.h>
  51.  
  52. struct vmw_region
  53. {
  54.    SVGAGuestPtr ptr;
  55.    uint32_t handle;
  56.    uint64_t map_handle;
  57.    void *data;
  58.    uint32_t map_count;
  59.    int drm_fd;
  60.    uint32_t size;
  61. };
  62.  
  63. /* XXX: This isn't a real hardware flag, but just a hack for kernel to
  64.  * know about primary surfaces. In newer versions of the kernel
  65.  * interface the driver uses a special field.
  66.  */
  67. #define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
  68.  
  69. uint32
  70. vmw_ioctl_context_create(struct vmw_winsys_screen *vws)
  71. {
  72.    struct drm_vmw_context_arg c_arg;
  73.    int ret;
  74.  
  75.    VMW_FUNC;
  76.  
  77.    ret = drmCommandRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_CONTEXT,
  78.                         &c_arg, sizeof(c_arg));
  79.  
  80.    if (ret)
  81.       return -1;
  82.  
  83.    vmw_printf("Context id is %d\n", c_arg.cid);
  84.  
  85.    return c_arg.cid;
  86. }
  87.  
  88. void
  89. vmw_ioctl_context_destroy(struct vmw_winsys_screen *vws, uint32 cid)
  90. {
  91.    struct drm_vmw_context_arg c_arg;
  92.  
  93.    VMW_FUNC;
  94.  
  95.    memset(&c_arg, 0, sizeof(c_arg));
  96.    c_arg.cid = cid;
  97.  
  98.    (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_CONTEXT,
  99.                          &c_arg, sizeof(c_arg));
  100.  
  101. }
  102.  
  103. uint32
  104. vmw_ioctl_surface_create(struct vmw_winsys_screen *vws,
  105.                               SVGA3dSurfaceFlags flags,
  106.                               SVGA3dSurfaceFormat format,
  107.                               SVGA3dSize size,
  108.                               uint32_t numFaces, uint32_t numMipLevels)
  109. {
  110.    union drm_vmw_surface_create_arg s_arg;
  111.    struct drm_vmw_surface_create_req *req = &s_arg.req;
  112.    struct drm_vmw_surface_arg *rep = &s_arg.rep;
  113.    struct drm_vmw_size sizes[DRM_VMW_MAX_SURFACE_FACES*
  114.                              DRM_VMW_MAX_MIP_LEVELS];
  115.    struct drm_vmw_size *cur_size;
  116.    uint32_t iFace;
  117.    uint32_t iMipLevel;
  118.    int ret;
  119.  
  120.    vmw_printf("%s flags %d format %d\n", __FUNCTION__, flags, format);
  121.  
  122.    memset(&s_arg, 0, sizeof(s_arg));
  123.    if (vws->use_old_scanout_flag &&
  124.        (flags & SVGA3D_SURFACE_HINT_SCANOUT)) {
  125.       req->flags = (uint32_t) flags;
  126.       req->scanout = false;
  127.    } else if (flags & SVGA3D_SURFACE_HINT_SCANOUT) {
  128.       req->flags = (uint32_t) (flags & ~SVGA3D_SURFACE_HINT_SCANOUT);
  129.       req->scanout = true;
  130.    } else {
  131.       req->flags = (uint32_t) flags;
  132.       req->scanout = false;
  133.    }
  134.    req->format = (uint32_t) format;
  135.    req->shareable = 1;
  136.  
  137.    assert(numFaces * numMipLevels < DRM_VMW_MAX_SURFACE_FACES*
  138.           DRM_VMW_MAX_MIP_LEVELS);
  139.    cur_size = sizes;
  140.    for (iFace = 0; iFace < numFaces; ++iFace) {
  141.       SVGA3dSize mipSize = size;
  142.  
  143.       req->mip_levels[iFace] = numMipLevels;
  144.       for (iMipLevel = 0; iMipLevel < numMipLevels; ++iMipLevel) {
  145.          cur_size->width = mipSize.width;
  146.          cur_size->height = mipSize.height;
  147.          cur_size->depth = mipSize.depth;
  148.          mipSize.width = MAX2(mipSize.width >> 1, 1);
  149.          mipSize.height = MAX2(mipSize.height >> 1, 1);
  150.          mipSize.depth = MAX2(mipSize.depth >> 1, 1);
  151.          cur_size++;
  152.       }
  153.    }
  154.    for (iFace = numFaces; iFace < SVGA3D_MAX_SURFACE_FACES; ++iFace) {
  155.       req->mip_levels[iFace] = 0;
  156.    }
  157.  
  158.    req->size_addr = (unsigned long)&sizes;
  159.  
  160.    ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_SURFACE,
  161.                              &s_arg, sizeof(s_arg));
  162.  
  163.    if (ret)
  164.       return -1;
  165.  
  166.    vmw_printf("Surface id is %d\n", rep->sid);
  167.  
  168.    return rep->sid;
  169. }
  170.  
  171. void
  172. vmw_ioctl_surface_destroy(struct vmw_winsys_screen *vws, uint32 sid)
  173. {
  174.    struct drm_vmw_surface_arg s_arg;
  175.  
  176.    VMW_FUNC;
  177.  
  178.    memset(&s_arg, 0, sizeof(s_arg));
  179.    s_arg.sid = sid;
  180.  
  181.    (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_SURFACE,
  182.                          &s_arg, sizeof(s_arg));
  183. }
  184.  
  185. void
  186. vmw_ioctl_command(struct vmw_winsys_screen *vws, int32_t cid,
  187.                   uint32_t throttle_us, void *commands, uint32_t size,
  188.                   struct pipe_fence_handle **pfence)
  189. {
  190.    struct drm_vmw_execbuf_arg arg;
  191.    struct drm_vmw_fence_rep rep;
  192.    int ret;
  193.  
  194. #ifdef DEBUG
  195.    {
  196.       static boolean firsttime = TRUE;
  197.       static boolean debug = FALSE;
  198.       static boolean skip = FALSE;
  199.       if (firsttime) {
  200.          debug = debug_get_bool_option("SVGA_DUMP_CMD", FALSE);
  201.          skip = debug_get_bool_option("SVGA_SKIP_CMD", FALSE);
  202.       }
  203.       if (debug) {
  204.          VMW_FUNC;
  205.          svga_dump_commands(commands, size);
  206.       }
  207.       firsttime = FALSE;
  208.       if (skip) {
  209.          size = 0;
  210.       }
  211.    }
  212. #endif
  213.  
  214.    memset(&arg, 0, sizeof(arg));
  215.    memset(&rep, 0, sizeof(rep));
  216.  
  217.    rep.error = -EFAULT;
  218.    if (pfence)
  219.       arg.fence_rep = (unsigned long)&rep;
  220.    arg.commands = (unsigned long)commands;
  221.    arg.command_size = size;
  222.    arg.throttle_us = throttle_us;
  223.    arg.version = DRM_VMW_EXECBUF_VERSION;
  224.  
  225.    do {
  226.        ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_EXECBUF, &arg, sizeof(arg));
  227.    } while(ret == -ERESTART);
  228.    if (ret) {
  229.       vmw_error("%s error %s.\n", __FUNCTION__, strerror(-ret));
  230.    }
  231.  
  232.    if (rep.error) {
  233.  
  234.       /*
  235.        * Kernel has already synced, or caller requested no fence.
  236.        */
  237.       if (pfence)
  238.          *pfence = NULL;
  239.    } else {
  240.       if (pfence) {
  241.          *pfence = vmw_fence_create(rep.handle, rep.mask);
  242.  
  243.          if (*pfence == NULL) {
  244.             /*
  245.              * Fence creation failed. Need to sync.
  246.              */
  247.             (void) vmw_ioctl_fence_finish(vws, rep.handle, rep.mask);
  248.             vmw_ioctl_fence_unref(vws, rep.handle);
  249.          }
  250.       }
  251.    }
  252. }
  253.  
  254.  
  255. struct vmw_region *
  256. vmw_ioctl_region_create(struct vmw_winsys_screen *vws, uint32_t size)
  257. {
  258.    struct vmw_region *region;
  259.    union drm_vmw_alloc_dmabuf_arg arg;
  260.    struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
  261.    struct drm_vmw_dmabuf_rep *rep = &arg.rep;
  262.    int ret;
  263.  
  264.    vmw_printf("%s: size = %u\n", __FUNCTION__, size);
  265.  
  266.    region = CALLOC_STRUCT(vmw_region);
  267.    if (!region)
  268.       goto out_err1;
  269.  
  270.    memset(&arg, 0, sizeof(arg));
  271.    req->size = size;
  272.    do {
  273.       ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_ALLOC_DMABUF, &arg,
  274.                                 sizeof(arg));
  275.    } while (ret == -ERESTART);
  276.  
  277.    if (ret) {
  278.       vmw_error("IOCTL failed %d: %s\n", ret, strerror(-ret));
  279.       goto out_err1;
  280.    }
  281.  
  282.    region->ptr.gmrId = rep->cur_gmr_id;
  283.    region->ptr.offset = rep->cur_gmr_offset;
  284.    region->data = NULL;
  285.    region->handle = rep->handle;
  286.    region->map_handle = rep->map_handle;
  287.    region->map_count = 0;
  288.    region->size = size;
  289.    region->drm_fd = vws->ioctl.drm_fd;
  290.  
  291.    vmw_printf("   gmrId = %u, offset = %u\n",
  292.               region->ptr.gmrId, region->ptr.offset);
  293.  
  294.    return region;
  295.  
  296.  out_err1:
  297.    FREE(region);
  298.    return NULL;
  299. }
  300.  
  301. void
  302. vmw_ioctl_region_destroy(struct vmw_region *region)
  303. {
  304.    struct drm_vmw_unref_dmabuf_arg arg;
  305.  
  306.    vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
  307.               region->ptr.gmrId, region->ptr.offset);
  308.  
  309.    if (region->data) {
  310.       os_munmap(region->data, region->size);
  311.       region->data = NULL;
  312.    }
  313.  
  314.    memset(&arg, 0, sizeof(arg));
  315.    arg.handle = region->handle;
  316.    drmCommandWrite(region->drm_fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
  317.  
  318.    FREE(region);
  319. }
  320.  
  321. SVGAGuestPtr
  322. vmw_ioctl_region_ptr(struct vmw_region *region)
  323. {
  324.    return region->ptr;
  325. }
  326.  
  327. void *
  328. vmw_ioctl_region_map(struct vmw_region *region)
  329. {
  330.    void *map;
  331.  
  332.    vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
  333.               region->ptr.gmrId, region->ptr.offset);
  334.  
  335.    if (region->data == NULL) {
  336.       map = os_mmap(NULL, region->size, PROT_READ | PROT_WRITE, MAP_SHARED,
  337.                  region->drm_fd, region->map_handle);
  338.       if (map == MAP_FAILED) {
  339.          vmw_error("%s: Map failed.\n", __FUNCTION__);
  340.          return NULL;
  341.       }
  342.  
  343.       region->data = map;
  344.    }
  345.  
  346.    ++region->map_count;
  347.  
  348.    return region->data;
  349. }
  350.  
  351. void
  352. vmw_ioctl_region_unmap(struct vmw_region *region)
  353. {
  354.    vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
  355.               region->ptr.gmrId, region->ptr.offset);
  356.    --region->map_count;
  357. }
  358.  
  359. void
  360. vmw_ioctl_fence_unref(struct vmw_winsys_screen *vws,
  361.                       uint32_t handle)
  362. {
  363.    struct drm_vmw_fence_arg arg;
  364.    int ret;
  365.    
  366.    memset(&arg, 0, sizeof(arg));
  367.    arg.handle = handle;
  368.  
  369.    ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_FENCE_UNREF,
  370.                          &arg, sizeof(arg));
  371.    if (ret != 0)
  372.       vmw_error("%s Failed\n", __FUNCTION__);
  373. }
  374.  
  375. static INLINE uint32_t
  376. vmw_drm_fence_flags(uint32_t flags)
  377. {
  378.     uint32_t dflags = 0;
  379.  
  380.     if (flags & SVGA_FENCE_FLAG_EXEC)
  381.         dflags |= DRM_VMW_FENCE_FLAG_EXEC;
  382.     if (flags & SVGA_FENCE_FLAG_QUERY)
  383.         dflags |= DRM_VMW_FENCE_FLAG_QUERY;
  384.  
  385.     return dflags;
  386. }
  387.  
  388.  
  389. int
  390. vmw_ioctl_fence_signalled(struct vmw_winsys_screen *vws,
  391.                           uint32_t handle,
  392.                           uint32_t flags)
  393. {
  394.    struct drm_vmw_fence_signaled_arg arg;
  395.    uint32_t vflags = vmw_drm_fence_flags(flags);
  396.    int ret;
  397.  
  398.    memset(&arg, 0, sizeof(arg));
  399.    arg.handle = handle;
  400.    arg.flags = vflags;
  401.  
  402.    ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_SIGNALED,
  403.                              &arg, sizeof(arg));
  404.  
  405.    if (ret != 0)
  406.       return ret;
  407.  
  408.    return (arg.signaled) ? 0 : -1;
  409. }
  410.  
  411.  
  412.  
  413. int
  414. vmw_ioctl_fence_finish(struct vmw_winsys_screen *vws,
  415.                        uint32_t handle,
  416.                        uint32_t flags)
  417. {
  418.    struct drm_vmw_fence_wait_arg arg;
  419.    uint32_t vflags = vmw_drm_fence_flags(flags);
  420.    int ret;
  421.  
  422.    memset(&arg, 0, sizeof(arg));
  423.  
  424.    arg.handle = handle;
  425.    arg.timeout_us = 10*1000000;
  426.    arg.lazy = 0;
  427.    arg.flags = vflags;
  428.  
  429.    ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_WAIT,
  430.                              &arg, sizeof(arg));
  431.  
  432.    if (ret != 0)
  433.       vmw_error("%s Failed\n", __FUNCTION__);
  434.    
  435.    return 0;
  436. }
  437.  
  438.  
  439. boolean
  440. vmw_ioctl_init(struct vmw_winsys_screen *vws)
  441. {
  442.    struct drm_vmw_getparam_arg gp_arg;
  443.    struct drm_vmw_get_3d_cap_arg cap_arg;
  444.    unsigned int size;
  445.    int ret;
  446.  
  447.    VMW_FUNC;
  448.  
  449.    memset(&gp_arg, 0, sizeof(gp_arg));
  450.    gp_arg.param = DRM_VMW_PARAM_3D;
  451.    ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
  452.                              &gp_arg, sizeof(gp_arg));
  453.    if (ret || gp_arg.value == 0) {
  454.       vmw_error("No 3D enabled (%i, %s).\n", ret, strerror(-ret));
  455.       goto out_no_3d;
  456.    }
  457.  
  458.    memset(&gp_arg, 0, sizeof(gp_arg));
  459.    gp_arg.param = DRM_VMW_PARAM_FIFO_HW_VERSION;
  460.    ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
  461.                              &gp_arg, sizeof(gp_arg));
  462.    if (ret) {
  463.       vmw_error("Failed to get fifo hw version (%i, %s).\n",
  464.                 ret, strerror(-ret));
  465.       goto out_no_3d;
  466.    }
  467.    vws->ioctl.hwversion = gp_arg.value;
  468.  
  469.    size = SVGA_FIFO_3D_CAPS_SIZE * sizeof(uint32_t);
  470.    vws->ioctl.buffer = calloc(1, size);
  471.    if (!vws->ioctl.buffer) {
  472.       debug_printf("Failed alloc fifo 3D caps buffer.\n");
  473.       goto out_no_3d;
  474.    }
  475.  
  476.    memset(&cap_arg, 0, sizeof(cap_arg));
  477.    cap_arg.buffer = (uint64_t) (unsigned long) (vws->ioctl.buffer);
  478.    cap_arg.max_size = size;
  479.  
  480.    ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_GET_3D_CAP,
  481.                          &cap_arg, sizeof(cap_arg));
  482.  
  483.    if (ret) {
  484.       debug_printf("Failed to get 3D capabilities"
  485.                    " (%i, %s).\n", ret, strerror(-ret));
  486.       goto out_no_caps;
  487.    }
  488.  
  489.    vmw_printf("%s OK\n", __FUNCTION__);
  490.    return TRUE;
  491.   out_no_caps:
  492.    free(vws->ioctl.buffer);
  493.   out_no_3d:
  494.    debug_printf("%s Failed\n", __FUNCTION__);
  495.    return FALSE;
  496. }
  497.  
  498.  
  499.  
  500. void
  501. vmw_ioctl_cleanup(struct vmw_winsys_screen *vws)
  502. {
  503.    VMW_FUNC;
  504. }
  505.