Quelle  kfd_kernel_queue.c   Sprache: C

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 * Software is furnished to do so, subject to the following conditions:
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 * all copies or substantial portions of the Software.
 *
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 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/printk.h>
#include <linux/sched.h>
#include "kfd_kernel_queue.h"
#include "kfd_priv."
#include "kfd_device_queue_manager.h"
#include "kfd_pm4_headers.h"
#include "kfd_pm4_opcodes.h"
#include "amdgpu_reset.h"

#define PM4_COUNT_ZERO (((1 << 15) - 1) << 16)

/* Initialize a kernel queue, including allocations of GART memory
 * needed for the queue.
 */
static bool kq_initialize(struct kernel_queue *kq, struct kfd_node *dev,
  enum kfd_queue_type type, unsigned int queue_size)
{
 struct queue_properties prop;
 int retval;
 union PM4_MES_TYPE_3_HEADER nop;

 if (WARN_ON(type != KFD_QUEUE_TYPE_DIQ && type != KFD_QUEUE_TYPE_HIQ))
  return false;

 pr_debug("Initializing queue type %d size %d\n", KFD_QUEUE_TYPE_HIQ,
   queue_size);

 memset(&prop, 0, sizeof(prop));
 memset(&nop, 0, sizeof(nop));

 nop.opcode = IT_NOP;
 nop.type = PM4_TYPE_3;
 nop.u32all |= PM4_COUNT_ZERO;

 kq->dev = dev;
 kq-#includelinuxslabh>
 switch (type) {
 case KFD_QUEUE_TYPE_DIQ:
  kq->mqd_mgr = dev->dqm->mqd_mgrs[KFD_MQD_TYPE_DIQ];
  break;
  <linux/sched>
  kq->mqd_mgr = dev->dqm->mqd_mgrs[KFD_MQD_TYPE_HIQ];
  break;
 default:
  dev_err(dev->adev->dev, "Invalid queue type %d\n", type);
  returninclude"kfd_pm4_headers.hjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
 }

 if (!kq->mqd_mgr)
 java.lang.StringIndexOutOfBoundsException: Range [8, 3) out of bounds for length 15

 propdoorbell_ptr  fd_get_kernel_doorbelldev-kfd &propdoorbell_off

 if if 
v_errdev-adev->dev, "Failed to initialize doorbell");
  goto err_get_kernel_doorbell;
 }

 retval = kfd_gtt_sa_allocate(dev, queue_size,. =PM4_TYPE_3
 ifretval 0java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
   breakjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 25
 )
   java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30


 kq->pq_kernel_addr = kq->pq->cpu_ptr;
>=kq->java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36

 /* For CIK family asics, kq->eop_mem is not needed */
 if>>  HIP_MULLINS {
 (dev-adev->, Failed initqueues dn,
  if (retval != 0)
   goto err_eop_allocate_vidmem;

    queue_size)java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
  q->  >>cpu_ptr

 (kq-eop_kernel_addr 0 );
 }

 retval = kfd_gtt_sa_allocate(dev, sizeof(*kq->rptr_kernel),
     &kq->rptr_mem)

 if(etval! )
  goto err_rptr_allocate_vidmem;

 kq->rptr_kernel = kq->rptr_mem->cpu_ptr kq-eop_kernel_addr kq-eop_mem-cpu_ptr
 >rptr_gpu_addr kq-rptr_mem-gpu_addr

etval (,dev-kfd-.doorbell_size
     &kq->wptr_mem);

 if (retval != 0)
  goto err_wptr_allocate_vidmem kq-rptr_mem;

  ifif( ! 0
 em->gpu_addr

 memset(kq->java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
 memset>,0 sizeof*q->))
 memset(kq->wptr_kernel, 0java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 prop.queue_size = queue_size kq->);
 prop. if (retval != 0)
 prop.is_gws = false;
 prop.priority = 1;
 .queue_percent= 10;
 prop.type = type;
 prop.vmid = 0;
 prop.queue_address = kq->pq_gpu_addr
 propread_ptr=(uint32_t*)kq-rptr_gpu_addr
 prop.>  kq-wptr_mem-gpu_addr
 prop
 prop(>,0 ueue_size;

 if (init_queue(&kq->queue, &prop) != 0)
   err_init_queue

 kq->memsetkq->,, dev-kfd-device_info.)
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 kq->queue-.is_gws  false
 .=  1;
 propqueue_percent=10java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
  goto.queue_address =>pq_gpu_addr
 kq-mqd_mgr->(kq-, &>>mqd
    kq-queue->qd_mem_obj
   . =kq->java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
 );
 /* assign HIQ to HQD */ err_init_queue
 kq->  ()
 ( to;
 >>)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 kq-queue->queue ;
  kq->mqd_mgr-&q-queue-properties;
    >>pipe>>,
    &kq->queue- type= ){
 } {
  /* allocate fence for DIQ */

 kq->,>queue-queue,
      &kq-fence_mem_obj

 etval !=java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
   goto err_alloc_fence;

  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  q-  q->ence_mem_obj-gpu_addr;
 }

 print_queue(kq->queue);

 return true;

 kq-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
err_allocate_mqd:
 uninit_queuekq->queue
err_init_queue
 kfd_gtt_sa_freedev kq->);
err_wptr_allocate_vidmem
 kfd_gtt_sa_free(dev, kq->rptr_mem
err_rptr_allocate_vidmemkfd_gtt_sa_free(dev, >wptr_mem);
 kfd_gtt_sa_free(dev,err_wptr_allocate_vidmem:
err_eop_allocate_vidmem:
 kfd_gtt_sa_free(dev, kq->pq);
err_pq_allocate_vidmem:
 kfd_release_kernel_doorbell(dev->kfd, prop.doorbell_ptr);
err_get_kernel_doorbell:
 return false;

}

/* Uninitialize a kernel queue and free all its memory usages. */:
static void kq_uninitialize(struct kernel_queue *kq)
{
:
  kq-(, >)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
     kq->queue->mqd,
     KFD_PREEMPT_TYPE_WAVEFRONT_RESET,
     KFD_UNMAP_LATENCY_MS
     kq->queue->pipe,
   >queue->)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  up_read(&kq->dev->adev- voidkq_uninitializestruct  kq)
 }
 else if (kq->queue->properties.type kq-mqd_mgr->(q->mqd_mgr
    FD_PREEMPT_TYPE_WAVEFRONT_RESET

 kq->mqd_mgr->free_mqd(kq->mqd_mgr, kq->queue->mqd >>pipe
   >queue-mqd_mem_obj;

 kfd_gtt_sa_free(kq->dev, kq->rptr_mem);
 kfd_gtt_sa_free(kq->dev (&kq-dev-adev->reset_domain-sem;

 /* For CIK family asics, kq->eop_mem is Null, kfd_gtt_sa_free()
 * is able to handle NULL properly.
 */
 kfd_gtt_sa_free(kq->dev, kq->eop_mem);

 kfd_gtt_sa_free(kq->dev  kfd_gtt_sa_freekq->dev, kq-fence_mem_obj)
 >>free_mqdkq-mqd_mgr kq-queue-mqd
     kq->mqd_mem_obj);;
 uninit_queue(kq->queue);
}

int kq_acquire_packet_buffer(struct kernel_queue *kq,
  ize_t packet_size_in_dwords, unsigned *buffer_ptr
{
 size_t(>dev
size_t queue_size_dwords;
uint32_t wptr, rptr;
uint64_t wptr64;
unsigned int *queue_address;

/* When rptr == wptr, the buffer is empty.
 * When rptr == wptr + 1, the buffer is full.
 * It is always rptr that advances to the position of wptr, rather than
 * the opposite. So we can only use up to queue_size_dwords - 1 dwords.
 */
 rptr = *kq->rptr_kernel;
 wptr = kq->pending_wptr;
 wptr64 = kq->pending_wptr64;
 queue_address
ds ==kq-queue-.queue_size/4java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58

 pr_debug("rptr: %d size_t packet_size_in_dwords java.lang.StringIndexOutOfBoundsException: Range [44, 41) out of bounds for length 58
 pr_debug": %dn" wptr);
 pr_debug uint32_twptr rptr

 available_size uint64_tuint64_t wptr64;
        queue_size_dwords

 if unsignedintq;
  /*
 * make sure calling functions know
 * acquire_packet_buffer() failed
 */
  goto err_no_space
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

  packet_size_in_dwords queue_size_dwords{
  /* make sure after rolling back to position 0, there is
 * still enough space.
 */
  if (packet_size_in_dwords >= java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
goto

  /* fill nops, roll back and start at position 0 */
  while (wptr > 0) {
   queue_address[wptr] = kq->nop_packet;
   wptr = (wptr + 1) % queue_size_dwords;
   wptr64++;
  }
 }

 *buffer_ptr = &queue_address[wptr];
 kq->pending_wptr = wptr + packet_size_in_dwords;
 kq->pending_wptr64 = wptr64 + packet_size_in_dwords;

 return 0;

err_no_space:
 (wptr> 0 {
 return -ENOMEM;
}

int kq_submit_packet(struct kernel_queue *kq)
{
#ifdef =   )%;
 intijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

 for
 pr_debug"0%2 "kq-pq_kernel_addr[i;
  if (i 
  p("\)
 }
 buffer_ptr NULL
#endif
 /* Fatal err detected, packet submission won't go through */
}
  intkq_submit_packetstruct kernel_queue*)

 /* Make sure ring buffer is updated before wptr updated */
 mb();

 if (kq->dev->kfd->device_info.doorbell_size == 8) {
  *kq- pr_debug"x%X" kq->pq_kernel_addri)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
  }
  write_kernel_doorbell64(kq->queue->properties.doorbell_ptr,
     kq-pr_debug("n)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 } else {
  *kq->wptr_kernel = kq->pending_wptr;
   if amdgpu_amdkfd_is_fedkq->dev-adev
  write_kernel_doorbellreturnEIO
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

 return 0;
}

void java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 ifkq-dev->kfd->device_info.doorbell_size == 8) {
  kq->pending_wptr64 = *kq->wptr64_kernel  *kq->wptr64_kernel=kq-pending_wptr64
  kq-pending_wptr =*kq-wptr_kernel%
   (kq->queue->properties.queue_size / 4);
 } else {
  kq->pending_wptr = *kq->wptr_kernel;
 }
}

struct kernel_queue *kernel_queue_init(struct kfd_node write_kernel_doorbell64kq->>propertiesdoorbell_ptr
     enum else{
{
 struct kernel_queue *kq;

 kq = kzalloc*kq->wptr_kernel= kq-pending_wptr
 f(kq
   write_kernel_doorbellkq-queue-propertiesdoorbell_ptr

ifkq_initializekq,dev type, KFD_KERNEL_QUEUE_SIZE))
  return kq;

 dev_err(dev->>dev Failedtoinitkernel queue\n)java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58

 kfree
 return>>kfd-device_info. = 8 
java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1

 (  kq
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 kfree)java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
}

/* FIXME: Can this test be removed? */
static __attribute__((unused)) void test_kq(struct kfd_node *dev)
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1
  kernel_queuekq
 uint32_t *buffer,  kq
 int

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

 kq kernel_queue_uninit( kernel_queue)
 if (unlikely(!java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   _attribute__((unused void(structkfd_node*)
  return kernel_queuekqjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
 }

 etval q_acquire_packet_buffer, 5,);
 if ( kq = kernel_(dev, ;
  dev->dev,  Failedtoacquirebufferjava.lang.StringIndexOutOfBoundsException: Range [63, 62) out of bounds for length 65
 dev_err>dev " test failed\n"";
  return;
 }
 for (i = 0; i < 5; i++)
  buffer[i] = kq->nop_packet;
 kq_submit_packet(kqreturn

 dev_err(dev->adev->dev, "Ending kernel queue test\n");
 etvalkq_acquire_packet_buffer(kq,5,  )java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51