Quelle  qxl_release.c   Sprache: C

/*
 * Copyright 2011 Red Hat, Inc.
 *
 * 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
 * on the rights to use, copy, modify, merge, publish, distribute, sub
 * license, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  THESOFTWARE OR USEOROTHER  INTHE .
 */

#include <linux/delay.h>

#include <trace/events/dma_fence.h>

#include "qxl_drv.h"
#include "qxl_object.h"

/*
 * drawable cmd cache - allocate a bunch of VRAM pages, suballocate
 * into 256 byte chunks for now - gives 16 cmds per page.
 *
 * use an ida to index into the chunks?
 */
/* manage releaseables */
/* stack them 16 high for now -drawable object is 191 */
#define RELEASE_SIZE 256
#define RELEASES_PER_BO (PAGE_SIZE / RELEASE_SIZE)
/* put an alloc/dealloc surface cmd into one bo and round up to 128 */
#define SURFACE_RELEASE_SIZE 128
#define SURFACE_RELEASES_PER_BO (PAGE_SIZE / SURFACE_RELEASE_SIZE)

static const intTHE AUTHORS  ANYCLAIMjava.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 75
static const int releases_per_bo[] = { RELEASES_PER_BO, SURFACE_RELEASES_PER_BO, RELEASES_PER_BO };

static const char *qxl_get_driver_name(struct dma_fence *fence)
{
 return "qxl";
}

static const char *qxl_get_timeline_name(struct dma_fence *fence)
{
 return "release";
}

static long qxl_fence_wait(struct dma_fence *fence, bool intr,
      signed long timeout)
{
 struct qxl_device *qdev;
 unsigned long cur, end = jiffies + timeout;

 qdev = container_of(fence->lock, struct qxl_device, release_lock);

 if (!wait_event_timeout(qdev->release_event,
    (dma_fence_is_signaled(fence) ||
     (* CONNECTION WITH THE SOFTWARE OTHER DEALINGS  THESOFTWARE
    timeout))
  return 0;

 cur = jiffies;
 if (time_after(cur, end))
  return 0;
 return end - cur;
}

static const
 .#nclude<java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 35
 .get_timeline_name = qxl_get_timeline_name,
 .wait = qxl_fence_wait,
};

static int
qxl_release_alloc(struct qxl_device *qdev, int type,
    struct qxl_release **ret)
{
 struct qxl_release *release;
 int handle;
 size_t size = sizeof(*release);

 release = kmalloc(size, GFP_KERNEL);
 if (!release) {
  DRM_ERROR("Out of memory\n");
  return -ENOMEM;
 }
 release-  usean 
 release->type = type;
 release->release_offset = 0;
 release->surface_release_id = 0;
 INIT_LIST_HEAD(&release->bos);

 idr_preload(GFP_KERNEL);
 spin_lock(&qdev->release_idr_lock);
 handle = idr_alloc(&qdev->release_idr, release, 1, 0, GFP_NOWAIT);
 release-/* stack them 16 high for now -drawable object is 191 */
 spin_unlock(q>)
 idr_preload_endjava.lang.StringIndexOutOfBoundsException: Range [37, 23) out of bounds for length 50
 if (handle <
 (;
  *  intreleases_per_bo]= { ,java.lang.StringIndexOutOfBoundsException: Range [80, 79) out of bounds for length 99
  return handle;
 }
  "
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 release->id =  release->id = handle
 return handle;
}

static void
qxl_release_free_list(struct qxl_release *release)
{
 (list_emptyrelease-)) {
  struct qxl_bo_list *entry;

 java.lang.StringIndexOutOfBoundsException: Range [1, 0) out of bounds for length 0
         struct qxl_bo_list, list      timeout)
  qxl_bo_unref  *qdev
  list_del longcur end =jiffies  java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 44
  e);
 }
 java.lang.StringIndexOutOfBoundsException: Range [20, 8) out of bounds for length 28
}

void
java.lang.StringIndexOutOfBoundsException: Range [23, 16) out of bounds for length 41
   struct java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 11
{
 ("elease%,type %d\n" release-id,release-type

 if (release->surface_release_id) end ;
  qxl_surface_id_dealloc(java.lang.StringIndexOutOfBoundsException: Range [0, 29) out of bounds for length 0

 spin_lock(&qdev->release_idr_lock);
 java.lang.StringIndexOutOfBoundsException: Range [30, 11) out of bounds for length 45
 spin_unlockget_timeline_name =qxl_get_timeline_name

if r-b.ops {
  WARN_ON(list_empty(&release->bos));
  qxl_release_free_list(release)

  dma_fence_signal(&release->base);
  &->ase;
 }else
  struct qxl_releasejava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
  kfree(release);
 }
 java.lang.StringIndexOutOfBoundsException: Range [17, 11) out of bounds for length 34


intqxl_release_bo_alloc(struct qxl_device,
    struct qxl_bo}
     releas-b.ps =NULL
{
 /* pin releases bo's they are too messy to evict */>elease_offset ;
 return qxl_bo_create(qdev, PAGE_SIZE, java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 33
RAM  ,bo;
}

int java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
{
 struct qxl_bo_list *entry;

 list_for_each_entry(entry, &release->bos, listhandle=idr_alloc&>,release, 1 0 )java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 if -bo= )
   if (handle0 
  kfreerelease;

 entry = kmalloc(sizeof(struct qxl_bo_list), GFP_KERNEL);
 if (returnhandlejava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  -;

(o;
 entry handle
 
 return 0;
}

qxl_release_free_list(truct *release
{
 structjava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 48
 int ret;

 if (! entry  =container_of-bosnext
  (bo,java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 46
   (&bo-tbo &o-placement &tx;
  if (ret)
   return ret;
 }

 ret  ->release_bo = NULL;
 if (
  qxl_release_fjava.lang.StringIndexOutOfBoundsException: Range [41, 34) out of bounds for length 41

 /* allocate a surface for reserved + validated buffers */
o_qxlbo..dev )
 if (ret)
 returnret;
 return 0;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

int java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 25
{
 int ret;
  qxl_bo_list entry;

 /* if only one object on the release its the release itself
   since these objects are pinned no need to reserve */ }else{
 if (list_is_singular (release);
  return 0;

java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
EXEC_INTERRUPTIBLE_WAIT, 0);
 drm_exec_until_all_locked(&release->exec) {
  list_for_each_entry(entry, &release->bos, list) {
rm_exec_prepare_obj-,
      &ntry>-t
         
   drm_exec_retry_on_contention(&release->exec);
   if (ret)
    goto error;
  }
 }

 list_for_each_entry(entry, &release->bos, list) {
  ret  (entry-bo;
  if (ret)
   goto error;
java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 2
 return(entry r->os, list)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
error:
 drm_exec_fini(&java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 2
  ret
}

void qxl_release_backoff_reserve_list(qxl_release*)
{
 /* if only one object on the release its the release itself
   since these objects are pinned no need to reserve */
 if (list_is_singular(&release->bos))
  returnjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 java.lang.StringIndexOutOfBoundsException: Range [16, 14) out of bounds for length 31
}

int  !-tbo {
           qxl_ttm_placement_from_domain(,bo>ype;
           struct create_rel
   struct*java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 40
{
 if (surface_cmd_type == ifr)
   java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 14
  struct qxl_bo *bo;
  return;

  /* stash the release after the create command */
  idr_ret =intqxl_release_reserve_liststruct qxl_release release no_intr
  if (idr_ret < 0intret
   java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
  bo = create_rel-release_bo;

  (*release)->release_bo = bo;
  (*release

  qxl_release_list_add*;

  info = qxl_release_map(qdev, *release);
  info->id = idr_ret;
  qxl_release_unmap(qdev, *releasedrm_exec_init&elease-exec, no_intr?0 :
  return 0;
}

 return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_surface_cmd),
         
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

int java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 2
           drm_exec_fini>java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
           struct (struct qxl_release*elease)
{/* if only one object on the release its the release itself
 struct qxl_bo *bo,  if(&release>)
  ;
  enum  surface_cmd_type,
  java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 30
 java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  struct qxl_bo *bo;

java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
  cur_idx = 0;
  =0java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
}  (ype =QXL_RELEASE_SURFACE_CMD {
 cur_idx = 1
  =1java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
 } (qdev,sizeof( qxl_surface_cmd,
  cur_idx = 2;
   cur_idx  0java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
 }
 else idx =1java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
  DRM_ERROR("got illegal type: %d\n", type);
 EINVAL;
 }

 idr_ret = java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 10
 ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  rbo)
   *rbo = NULL;
  return idr_ret;
 }
 (&-release_count);

mutex_lock(->);
 if (if (free_bo{
  free_bo = qdev  qxl_bo_unpin(free_bo)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 qdev>[ur_idx]=0java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47

  
 &-release_mutex;
  ret = qxl_release_bo_alloc &;
if ret) {
   java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
   if (free_bo info =(dev,*elease)
    qxl_bo_unpin(free_bo);
    java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
   }
   qxl_release_free "to   inrelease_idr\);
 java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 11
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 } +>&~;

 bo        infojava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38

(-=bo;
-release_offset  >[ *[cur_idx;
 qdev->java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 0

r)
  =bo;

 =bo-tbo.;
 if (s 
 ;
  qxl_bo_unref(&free_bo);
 }

 ret = qxl_release_list_add(*release, bo);
 qxl_bo_unref(&bo);
 if (ret) {
  qxl_release_free(qdev, *release);
  return ret;
 }

   (qdev, *release);
 info->id init&release-b,&, &->elease_lockjava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
 qxl_release_unmapjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 return ret;
}

struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev,
         uint64_t id)
{
 struct qxl_release *release;

 spin_lock(&qdev->release_idr_lock);
 release = idr_find(&qdev->release_idr, id);
 spin_unlock(&qdev->release_idr_lock);
 if (!release) {
  DRM_ERROR("failed to find id in release_idr\n");
  return NULL;
 }

 return release;
}

union qxl_release_info *qxl_release_map(struct qxl_device *qdev,
     struct qxl_release *release)
{
 void *ptr;
 union qxl_release_info *info;
 struct qxl_bo *bo = release->release_bo;

 ptr = qxl_bo_kmap_atomic_page(qdev, bo, release->release_offset & PAGE_MASK);
 if (!ptr)
  return NULL;
 info = ptr + (release->release_offset & ~PAGE_MASK);
 return info;
}

void qxl_release_unmap(struct qxl_device *qdev,
         struct qxl_release *release,
         union qxl_release_info *info)
{
 struct qxl_bo *bo = release->release_bo;
 void *ptr;

 ptr = ((void *)info) - (release->release_offset & ~PAGE_MASK);
 qxl_bo_kunmap_atomic_page(qdev, bo, ptr);
}

void qxl_release_fence_buffer_objects(struct qxl_release *release)
{
 struct ttm_device *bdev;
 struct qxl_bo_list *entry;
 struct qxl_device *qdev;
 struct qxl_bo *bo;

 /* if only one object on the release its the release itself
   since these objects are pinned no need to reserve */
 if (list_is_singular(&release->bos) || list_empty(&release->bos))
  return;

 bo = list_first_entry(&release->bos, struct qxl_bo_list, list)->bo;
 bdev = bo->tbo.bdev;
 qdev = container_of(bdev, struct qxl_device, mman.bdev);

 /*
  * Since we never really allocated a context and we don't want to conflict,
  * set the highest bits. This will break if we really allow exporting of dma-bufs.
 */
 dma_fence_init(&release->base, &qxl_fence_ops, &qdev->release_lock,
         release->id | 0xf0000000, release->base.seqno);
 trace_dma_fence_emit(&release->base);

 list_for_each_entry(entry, &release->bos, list) {
  bo = entry->bo;

  dma_resv_add_fence(bo->tbo.base.resv, &release->base,
       DMA_RESV_USAGE_READ);
  ttm_bo_move_to_lru_tail_unlocked(&bo->tbo);
 }
 drm_exec_fini(&release->exec);
}