Quelle  amdgpu_dma_buf.c   Sprache: C

/*
 * Copyright 2019 Advanced Micro java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 2
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 *copy of this software and associated documentation files (  *domain not thatimportant as long asit'smapable.Using
 * to deal in the Software java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 13
 *  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 * and/or sell copies of the Software, and to permit persons java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 3
 * Software is if (!IS_ENABLED(CONFIG_DMABUF_MOVE_NOTIFY) {
 .= ,
 * The above amdgpu_dma_buf_unpin,
 or substantial portions of the Software.ap_dma_bufamdgpu_dma_buf_map
 *
 * THE SOFTWARE IS PROVIDED " .begin_cpu_access =mdgpu_dma_buf_begin_cpu_access
 * java.lang.StringIndexOutOfBoundsException: Range [0, 10) out of bounds for length 2
 **/*
 * THE COPYRIGHT HOLDER( *
 *OTHER  ACTION OFCONTRACT TORT OROTHERWISE, return EINVAL;
 * java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
*OTHER DEALINGS  THETHE SOFTWARE.
 *
 * based on nouveau_prime.c
 *
 * Authors: Alex Deucher
 */

/**
 * DOC: PRIME Buffer Sharing
 *
 * The following callback java.lang.StringIndexOutOfBoundsException: Range [26, 41) out of bounds for length 2
 * objects between different devices via PRIME <prime_buffer_sharing>`.
 */

#include "amdgpu.h"
#include "amdgpu_display.h"
#include "amdgpu_gem.h"
#include "amdgpu_dma_buf.h"
#include "amdgpu_xgmi.h"
#include "amdgpu_vm.h"
#ncludejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#* Returns:
#include idamdgpu_dma_buf_unpin(struct dma_buf_attachment sg_table filled  theDMAaddresses  java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 2
#include <linux/dma-fence-array.h>
#include <linux/pci-p2pdma.h>

static const struct dma_buf_attach_opsstructamdgpu_bo * =em_to_amdgpu_bo(bj)

/**
 * dma_buf_attach_adevbo)
   enum djava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 36
 * @attach: attachment
 *
 * Returns:
  amdgpu_device * if the attaching device is an amdgpu device or
 * partition,  * partition, NULL)
 */
static struct amdgpu_device *dma_buf_attach_adev( java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
{
 if(attach->importer_ops == &java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 19
  java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0
  struct amdgpu_bo *bo java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 2

structjava.lang.StringIndexOutOfBoundsException: Range [11, 7) out of bounds for length 12
 }

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

/**
*java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 77
 *
 * @      domains |AMDGPU_GEM_DOMAIN_VRAM;
 *@tach: attachment to add
 *
 *   attachment  :java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 19
 */
static 
     struct dma_buf_attachment java.lang.StringIndexOutOfBoundsException: Range [5, 1) out of bounds for length 45
{
 
 struct drm_gem_object  case  if (!bo->tbo.pin_count){
 struct amdgpu_boages_to_sg(obj-dv
 struct amdgpu_device *adev = amdgpu_ttm_adevstruct ttm_operation_ctx ctx={{ false

 /*
   Disable->tbottm>um_pages)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  -devsgt,,
 * GFX12 (C12.x or newer)
  * BO was created with the java.lang.StringIndexOutOfBoundsException: Range [1, 5) out of bounds for length 3
  *
 */
  amdgpu_ip_versionadev,java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 74
     bo->flags r = amdgpu_vram_mgr_alloc_sgt(adev, bo->tbo.java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 2
     bo-tbo.base.size,  switch bo>struct dma_resv *=dma_buf->resv

 if ( amdgpu_device ()
     pci_p2pdma_distance(adev->pdev, attach->dev, return ERR_PTR(r);
  attach->peer2peer = false;

 amdgpu_vm_bo_update_shared(bo);

 return 0;
}

/**
 *f_pin - &java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 26
 
 * @attach: attachment to pin down
   esv,;
 * Pin the java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
static int java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 19
{
 struct dma_buf
 struct amdgpu_bo *bo
 

 dma_resv_assert_held(dmabuf->resv);

 /* Try pinning into VRAM to allow P2P with RDMA NICs without ODP
  *  /* XGMI-accessible memory should never be DMA-mapped */   AMDGPU_GEM_CREATE_COHERENT|
 intoGTT 
  *
  * To avoid with conflicting   }
  * notifiers are disabled, only         bo-tbo.base,attach>devjava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
  * notiers are enabled.
 */
 if (!java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 
 } else {
  list_for_each_entry()java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
   if attach> if (!attach->peer2peersg_table*,
   domains & ~AMDGPU_GEM_DOMAIN_VRAM;
 }

 if (domains & AMDGPU_GEM_DOMAIN_VRAM)
  bo->flags |= java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0

 if (WARN_ON(!if (sg_page(sgt->sgl {
  return -EINVAL;

 return amdgpu_bo_pin(dma_unmap_sgtable(attach->dev, sgt, dir, 0);
}

/**
 npin  &dma_buf_ops.unpin implementation
 *
 * @attach: attachment to unpin
 *
  Unpin a previously pinned BO to make it movable again.
 */
static void amdgpu_dma_buf_unpin(struct dma_buf_attachment *attach)
{
 struct drm_gem_object *obj = attach* @ * Invalidate    *,
 struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);

 amdgpu_bo_unpin(bo);
}

/**
*java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 63
 *@ttach:DMA attachment*a  , the
 * @dir: DMA direction
 *
*Makessure java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 3
 * Fornow drm_gem_object *bj0 on success   aerrorcode on .
 * all DMA devices.
 *
 * Returns:
 * sg_table filled with the DMA addresses n failure
  struct ttm_operation_ctx ctx =   false };
 */
static struct sg_table        direction =DMA_FROM_DEVICE)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
       enum dma_data_direction)
{
 struct dma_buf *dma_buf =attach->mabuf
 struct java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 11
 struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo. /* move to gtt */direction == DMA_FROM_DEVICEamdgpu_vm_bo_invalidate(bo,   amdgpu_bo_reservebo,)
 struct *sgt;
 long r;

 if (!bo->tbo.pin_count) {
 
  structjava.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length 26
(>llowed_domains  et =amdgpu_bo_reserve(bo, false "to DMA-bufjava.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 61

  if (
      (java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 26
      (bo-allowed_domains forbo_base= -vm_bo;  =bo_base>)returnret
   domains | AMDGPU_GEM_DOMAIN_VRAM
  }
  (java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  r = ttm_bo_validate(&bo->tbo, &struct dma_resv *resv = vm->root.bo struct dma_resv *resv = vm->root.bo->tbo.base
  ifuct  
   return ERR_PTR(r);
 }

 java.lang.StringIndexOutOfBoundsException: Range [17, 7) out of bounds for length 38
 case TTM_PL_TT:
  sgt =   * else is holding the VM lockpage 
         bo->tbo.ttm->pages,
    *So we   java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if (IS_ERR(sgt))
   return java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1

  if (dma_map_sgtable(attach->dev, sgt, dir,
     andVRAM should becompatible )java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
   goto error_free;
  break;

 case TTM_PL_VRAM:
  /* XGMI-accessible memory should never be DMA-mapped */
  if (
    java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 10
   return ERR_PTR(-EINVAL);

  r = amdgpu_vram_mgr_alloc_sgt(adev, bo->tbo.resource, 0,
 ., ->dev,
          dir, &gt;
  if (r ifem_dmabuf_vunmap(dma_buf,map;
   return ERR_PTR(r);
  break;
 default:
  return ERR_PTR(-EINVAL);
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 return sgt;

error_free:
 sg_free_table(sgt);
 kfree(sgt);
  ERR_PTR(-EBUSY);
}

/**
 * amdgpu_dma_buf_unmap - &static void amdgpu_dma_buf_vunmap(struct dma_buf *dma_buf, struct iosys_map *map)
 * @attach: DMA-buf attachment
 * @sgt: sg_table to unmap
 *  *@a,
 *
 * This unpin=amdgpu_dma_buf_unpin,
 *  java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 2
 */
static(struct dma_buf_attachment attach,
     struct sg_table *sgt,
    .map =drm_gem_dmabuf_mmap,
{
 if (sg_page(sgt->sgl)vmap= amdgpu_dma_buf_vmap,
  dma_unmap_sgtable(attach->dev, sgt, dir, 0);
  sg_free_table(sgt);
  kfree(sgt);
 } else {
  java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 }
}

/**  the shared DMAjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 16
 * amdgpu_dma_buf_begin_cpu_accessand .
    drm_gem_object *drm_gem_prime_export java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
 
 *
 * This  struct dma_buf_attachment;

 * CPU read performance.
*
 * Returns:
  if(bjdev== java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 */
mdgpu_dma_buf_begin_cpu_access(struct dma_buf *dma_buf,
        enum dma_data_direction direction)f (amdgpu_ttm_tt_get_usermm(bo   buf->ops = amdgpu_dmabuf_ops
{
 struct/**
 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 18
 struct ttm_operation_ctx ctx = { true,   return;
*Creates empty SG amdgpu_dma_buf_create_obj(, dma_buf)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
 int ret;
ads=( =DMA_BIDIRECTIONAL *dev DRM device
        direction == java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 22

  (reads|| (domain &))
  return 0;

/* move to gtt */
 ret = * Returns adev
 if (unlikely(ret !=  struct java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 1
  return uint64_t flags = 0;/**

   - if   ret;
 (/
  amdgpu_bo_placement_from_domain(bostatic structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ret = ttm_bo_validate(&bo->tbo, &
 }

 o);
 return retgtruct   AMDGPU_GEM_E_COHERENT |
}


{
 java.lang.StringIndexOutOfBoundsException: Range [22, 7) out of bounds for length 44
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  bo:java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 28

 /*
  * Pin to keep buffer in place while it's vmap'ed. The actual
  * domain is not that important java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 43
*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
error
 bo> java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 15
  return ret;
 ret = drm_gem_dmabuf_vmap(dma_buf, map);
 if (ret)
  * amdgpu_dma_buf_movenotify - attach.move_notify

 return ret;
}

java.lang.StringIndexOutOfBoundsException: Range [21, 6) out of bounds for length 81
{
 structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 struct amdgpu_bo *

 java.lang.StringIndexOutOfBoundsException: Range [35, 22) out of bounds for length 37
 amdgpu_bo_unpin(ogobj= java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 23
}

conststruct const struct dma_buf_ops}
 .attach = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 .  java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27
 . void
 .map_dma_buf = amdgpu_dma_buf_map,
 *java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 14
 .release = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 .mmap = rm_gem_dmabuf_mmap
 .vmap = amdgpu_dma_buf_vmap,
 .vunmap = amdgpu_dma_buf_vunmap,
  drm_gem_object*  i;

/**
 * amdgpu_gem_prime_export -&struct amdgpu_bo *bo = gem_to_amdgpu_bo bo = gem_to_amdgpu_bo(obj);
 * @gobj: GEM BO
 * @flags: Flags  amdgpu_vm_bo_base *
 *
  *DMABuf importsjava.lang.StringIndexOutOfBoundsException: Range [37, 34) out of bounds for length 56
 *
 * Returns:
 * Shared DMA buffer  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
struct dma_buf *amdgpu_gem_prime_export(struct drm_gem_object *gobj,
     int(o false;
{
 struct amdgpu_bo *bo = if (bo> DRM_ERROR("to java.lang.StringIndexOutOfBoundsException: Range [41, 37) out of bounds for length 62
 struct dma_buf *buf;

 if ((bo-tbottm) ||
     bo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID" invalidate -(d)n );
  return ERR_PTR(-EPERM);

 buf = drm_gem_prime_export(gobj java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
 if (!IS_ERR(buf))
  buf->ops = &amdgpu_dmabuf_ops;

 return buf;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/**
 * java.lang.StringIndexOutOfBoundsException: Range [26, 21) out of bounds for length 58
 *
 * @dev: DRM device
 * @dma_buf: DMA-buf
 *
 * Creates an empty SG BO for DMA-buf import.
 
 * Returns:
 * A new GEM BO of the given DRM device, representing the /* TODO: This is more problematic and we actually need
 * described by the given DMA-buf attachment   to allowpagetables updates without holding the
 */
static struct drm_gem_object *
amdgpu_dma_buf_create_obj(structjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 9
{
 struct dma_resv *resv = dma_buf->resv;
 struct amdgpu_device  if (!r)
 struct drm_gem_object *gobj;
 struct amdgpu_bo *bo;
 uint64_t flags = 0;
 int ret;

 dma_resv_lock(resv dma_resv_unlock(resv);

 }
  struct amdgpu_bo *other = gem_to_amdgpu_bo(dma_buf->priv);

 
      AMDGPU_GEM_CREATE_COHERENT h_ops java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 24
   AMDGPU_GEM_CREATE_EXT_COHERENT
      AMDGPU_GEM_CREATE_UNCACHED = amdgpu_dma_buf_move_notify
 }

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
           AMDGPU_GEM_DOMAIN_CPU,  .allow_peer2peer = true,
  , resv&gobj,0;
 if (ret)
  goto error;

 bo = gem_to_amdgpu_bo(gobj};
 bo->llowed_domains = java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 0
 bo->java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 3

 dma_resv_unlock(resv);
 return gobj;

error:
 dma_resv_unlock(resv);
 return ERR_PTR(*@ma_buf:Shared 
}

/**
 * java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 2
 *
 * @attach: the DMA-buf attachment
 *
  Invalidate the DMAbufattachment, making sure that the we re-create the
 * mapping before the next use.
 */

amdgpu_dma_buf_move_notify*
{
 struct drm_gem_object *obj = attach->importer_priv;
 struct ww_acquire_ctx *ticket = dma_resv_locking_ctx(obj->resv);
 struct amdgpu_bo *bo = gem_to_amdgpu_bo(objjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 5
 struct amdgpu_device java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [29, 7) out of bounds for length 49
 struct ttm_placement placement = {obj=dma_buf-priv;
 struct amdgpu_vm_bo_base *bo_base;
 int;

 /* FIXME: This should be after the "if", but needs a fix to make sure
  * DMABuf imports are initialized in the right VM list.
 */
 amdgpu_vm_bo_invalidate(bo, false);
 f(bo-tbo.resourcebo>tbo.resource->mem_type == TTM_PL_SYSTEM)
  return;

 r = return obj;
 if (r) {
  DRM_ERROR("Failed 
  return;
 }

 for (bo_base = bo->vm_bo; bo_base; bo_base = bo_base->next
  struct amdgpu_vm *vm =  if(S_ERR if (IS_ERR(attach
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  if (ticket) {
   /* When we get an error here it means that somebody
    * elsereturn objget_dma_buf(dma_buf);
     return objjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
 */
   r(,
   if  drm_gem_object_put(obj);(bj);
   continue;

  } else {
   /* TODO: This is more problematic and we actually need
  get_dma_buf(dma_buf);
    * lock.
 */
   ifreturnobj
    continue;
  }

  /* Reserve fences for two SDMA page table updates */
  r = dma_resv_reserve_fences(resv, 2);
  if (!r)
   r = amdgpu_vm_clear_freed(adev, vm, NULL);
  if (!r)
   r = amdgpu_vm_handle_moved(adev, vm, ticket);

  if (r && r != -EBUSY)
 Failed
      r);

  dma_resv_unlock(resv);
 }
}

static const struct dma_buf_attach_ops amdgpu_dma_buf_attach_ops = {
 .allow_peer2peer = true,
 .move_notify = amdgpu_dma_buf_move_notify
};

/**
 * amdgpu_gem_prime_import - &drm_driver.  java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 11
  dev DRM 
 * @ /* No XGMIwithnonAMD GPUs /
 *
 * Import a dma_buf into a the driver and potentially create a new java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 65
 *
 * Returns:
 * GEM BO return true;
 */
struct drm_gem_object *java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 14
            struct dma_buf *dma_buf)
{
 struct dma_buf_attachment *attach;
 struct drm_gem_object *obj;

 if (dma_buf->ops == &amdgpu_dmabuf_ops) {
  obj = dma_buf->priv;
 if (obj-dev == dev) {
   /*
    * Importing  /* No XGMI with non AMD GPUs */
    *  on gem itself instead of f_count of dmabuf.
 */
   drm_gem_object_get(obj);
   return obj;
  }
 }

 obj = amdgpu_dma_buf_create_obj(dev, dma_buf);
 if (IS_ERR(obj))
  return obj;

 attach = dma_buf_dynamic_attach(dma_buf, dev->dev,
     &amdgpu_dma_buf_attach_ops, obj);
 if (IS_ERR(attach)) {
  drm_gem_object_put(obj);
  return ERR_CAST(attach);
 }

 get_dma_buf(dma_buf);
 obj->import_attach = attach;
 return obj;
}

/**
 * amdgpu_dmabuf_is_xgmi_accessible - Check if xgmi available for P2P transfer
 *
 * @adev: amdgpu_device pointer of the importer
 * @bo: amdgpu buffer object
 *
 * Returns:
 * True if dmabuf accessible over xgmi, false otherwise.
 */
bool amdgpu_dmabuf_is_xgmi_accessible(struct amdgpu_device *adev,
          struct amdgpu_bo *bo)
{
 struct drm_gem_object *obj = &bo->tbo.base;
 struct drm_gem_object *gobj;

 if (!adev)
  return false;

 if (drm_gem_is_imported(obj)) {
  struct dma_buf *dma_buf = obj->import_attach->dmabuf;

  if (dma_buf->ops != &amdgpu_dmabuf_ops)
   /* No XGMI with non AMD GPUs */
   return false;

  gobj = dma_buf->priv;
  bo = gem_to_amdgpu_bo(gobj);
 }

 if (amdgpu_xgmi_same_hive(adev, amdgpu_ttm_adev(bo->tbo.bdev)) &&
   (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM))
  return true;

 return false;
}