drm/amdgpu: clean up hw semaphore support in driver
authorChunming Zhou <David1.Zhou@amd.com>
Fri, 15 Jan 2016 03:05:21 +0000 (11:05 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 10 Feb 2016 19:16:49 +0000 (14:16 -0500)
No longer used.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
19 files changed:
drivers/gpu/drm/amd/amdgpu/Makefile
drivers/gpu/drm/amd/amdgpu/amdgpu.h
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
drivers/gpu/drm/amd/amdgpu/amdgpu_semaphore.c [deleted file]
drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
drivers/gpu/drm/amd/amdgpu/cik_sdma.c
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
drivers/gpu/drm/amd/amdgpu/vce_v3_0.c

index 20c9539abc36e887dea47d00982e308be412d93e..7e4568ee8c6d338cf1a7e508007b5b72281b2152 100644 (file)
@@ -20,7 +20,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \
        amdgpu_fb.o amdgpu_gem.o amdgpu_ring.o \
        amdgpu_cs.o amdgpu_bios.o amdgpu_benchmark.o amdgpu_test.o \
        amdgpu_pm.o atombios_dp.o amdgpu_afmt.o amdgpu_trace_points.o \
-       atombios_encoders.o amdgpu_semaphore.o amdgpu_sa.o atombios_i2c.o \
+       atombios_encoders.o amdgpu_sa.o atombios_i2c.o \
        amdgpu_prime.o amdgpu_vm.o amdgpu_ib.o amdgpu_pll.o \
        amdgpu_ucode.o amdgpu_bo_list.o amdgpu_ctx.o amdgpu_sync.o
 
index 7410d5bd37b95724f5461d5462e99c55cb92b695..745a9a1ae54be6d4a93ae052596b259f5560cd27 100644 (file)
@@ -638,31 +638,10 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv,
 int amdgpu_mode_dumb_mmap(struct drm_file *filp,
                          struct drm_device *dev,
                          uint32_t handle, uint64_t *offset_p);
-
-/*
- * Semaphores.
- */
-struct amdgpu_semaphore {
-       struct amdgpu_sa_bo     *sa_bo;
-       signed                  waiters;
-       uint64_t                gpu_addr;
-};
-
-int amdgpu_semaphore_create(struct amdgpu_device *adev,
-                           struct amdgpu_semaphore **semaphore);
-bool amdgpu_semaphore_emit_signal(struct amdgpu_ring *ring,
-                                 struct amdgpu_semaphore *semaphore);
-bool amdgpu_semaphore_emit_wait(struct amdgpu_ring *ring,
-                               struct amdgpu_semaphore *semaphore);
-void amdgpu_semaphore_free(struct amdgpu_device *adev,
-                          struct amdgpu_semaphore **semaphore,
-                          struct fence *fence);
-
 /*
  * Synchronization
  */
 struct amdgpu_sync {
-       struct amdgpu_semaphore *semaphores[AMDGPU_NUM_SYNCS];
        struct fence            *sync_to[AMDGPU_MAX_RINGS];
        DECLARE_HASHTABLE(fences, 4);
        struct fence            *last_vm_update;
index 9c1af8976befea20cf371cc4a15f226dbe434d75..11573fd1f053144f7d8e65e26e27d65ad257f16e 100644 (file)
@@ -81,7 +81,6 @@ int amdgpu_exp_hw_support = 0;
 int amdgpu_enable_scheduler = 1;
 int amdgpu_sched_jobs = 32;
 int amdgpu_sched_hw_submission = 2;
-int amdgpu_enable_semaphores = 0;
 int amdgpu_powerplay = -1;
 
 MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
@@ -162,9 +161,6 @@ module_param_named(sched_jobs, amdgpu_sched_jobs, int, 0444);
 MODULE_PARM_DESC(sched_hw_submission, "the max number of HW submissions (default 2)");
 module_param_named(sched_hw_submission, amdgpu_sched_hw_submission, int, 0444);
 
-MODULE_PARM_DESC(enable_semaphores, "Enable semaphores (1 = enable, 0 = disable (default))");
-module_param_named(enable_semaphores, amdgpu_enable_semaphores, int, 0644);
-
 #ifdef CONFIG_DRM_AMD_POWERPLAY
 MODULE_PARM_DESC(powerplay, "Powerplay component (1 = enable, 0 = disable, -1 = auto (default))");
 module_param_named(powerplay, amdgpu_powerplay, int, 0444);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_semaphore.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_semaphore.c
deleted file mode 100644 (file)
index 1caaf20..0000000
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright 2011 Christian König.
- * All Rights Reserved.
- *
- * 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 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 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 COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- */
-/*
- * Authors:
- *    Christian König <deathsimple@vodafone.de>
- */
-#include <drm/drmP.h>
-#include "amdgpu.h"
-#include "amdgpu_trace.h"
-
-int amdgpu_semaphore_create(struct amdgpu_device *adev,
-                           struct amdgpu_semaphore **semaphore)
-{
-       int r;
-
-       *semaphore = kmalloc(sizeof(struct amdgpu_semaphore), GFP_KERNEL);
-       if (*semaphore == NULL) {
-               return -ENOMEM;
-       }
-       r = amdgpu_sa_bo_new(&adev->ring_tmp_bo,
-                            &(*semaphore)->sa_bo, 8, 8);
-       if (r) {
-               kfree(*semaphore);
-               *semaphore = NULL;
-               return r;
-       }
-       (*semaphore)->waiters = 0;
-       (*semaphore)->gpu_addr = amdgpu_sa_bo_gpu_addr((*semaphore)->sa_bo);
-
-       *((uint64_t *)amdgpu_sa_bo_cpu_addr((*semaphore)->sa_bo)) = 0;
-
-       return 0;
-}
-
-bool amdgpu_semaphore_emit_signal(struct amdgpu_ring *ring,
-                                 struct amdgpu_semaphore *semaphore)
-{
-       trace_amdgpu_semaphore_signale(ring->idx, semaphore);
-
-       if (amdgpu_ring_emit_semaphore(ring, semaphore, false)) {
-               --semaphore->waiters;
-
-               /* for debugging lockup only, used by sysfs debug files */
-               ring->last_semaphore_signal_addr = semaphore->gpu_addr;
-               return true;
-       }
-       return false;
-}
-
-bool amdgpu_semaphore_emit_wait(struct amdgpu_ring *ring,
-                               struct amdgpu_semaphore *semaphore)
-{
-       trace_amdgpu_semaphore_wait(ring->idx, semaphore);
-
-       if (amdgpu_ring_emit_semaphore(ring, semaphore, true)) {
-               ++semaphore->waiters;
-
-               /* for debugging lockup only, used by sysfs debug files */
-               ring->last_semaphore_wait_addr = semaphore->gpu_addr;
-               return true;
-       }
-       return false;
-}
-
-void amdgpu_semaphore_free(struct amdgpu_device *adev,
-                          struct amdgpu_semaphore **semaphore,
-                          struct fence *fence)
-{
-       if (semaphore == NULL || *semaphore == NULL) {
-               return;
-       }
-       if ((*semaphore)->waiters > 0) {
-               dev_err(adev->dev, "semaphore %p has more waiters than signalers,"
-                       " hardware lockup imminent!\n", *semaphore);
-       }
-       amdgpu_sa_bo_free(adev, &(*semaphore)->sa_bo, fence);
-       kfree(*semaphore);
-       *semaphore = NULL;
-}
index 181ce39ef5e59f8e4d4fbf2feeb617af63deb611..a6fee511aab554d98909d027dd5826ec31438003 100644 (file)
@@ -48,9 +48,6 @@ void amdgpu_sync_create(struct amdgpu_sync *sync)
 {
        unsigned i;
 
-       for (i = 0; i < AMDGPU_NUM_SYNCS; ++i)
-               sync->semaphores[i] = NULL;
-
        for (i = 0; i < AMDGPU_MAX_RINGS; ++i)
                sync->sync_to[i] = NULL;
 
@@ -153,13 +150,13 @@ static void *amdgpu_sync_get_owner(struct fence *f)
 }
 
 /**
- * amdgpu_sync_resv - use the semaphores to sync to a reservation object
+ * amdgpu_sync_resv - sync to a reservation object
  *
  * @sync: sync object to add fences from reservation object to
  * @resv: reservation object with embedded fence
  * @shared: true if we should only sync to the exclusive fence
  *
- * Sync to the fence using the semaphore objects
+ * Sync to the fence
  */
 int amdgpu_sync_resv(struct amdgpu_device *adev,
                     struct amdgpu_sync *sync,
@@ -250,9 +247,6 @@ int amdgpu_sync_wait(struct amdgpu_sync *sync)
                kfree(e);
        }
 
-       if (amdgpu_enable_semaphores)
-               return 0;
-
        for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
                struct fence *fence = sync->sync_to[i];
                if (!fence)
@@ -279,12 +273,10 @@ int amdgpu_sync_rings(struct amdgpu_sync *sync,
                      struct amdgpu_ring *ring)
 {
        struct amdgpu_device *adev = ring->adev;
-       unsigned count = 0;
        int i, r;
 
        for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
                struct amdgpu_ring *other = adev->rings[i];
-               struct amdgpu_semaphore *semaphore;
                struct amdgpu_fence *fence;
 
                if (!sync->sync_to[i])
@@ -292,64 +284,19 @@ int amdgpu_sync_rings(struct amdgpu_sync *sync,
 
                fence = to_amdgpu_fence(sync->sync_to[i]);
 
-               /* check if we really need to sync */
-               if (!amdgpu_enable_scheduler &&
-                   !amdgpu_fence_need_sync(fence, ring))
-                       continue;
-
                /* prevent GPU deadlocks */
                if (!other->ready) {
                        dev_err(adev->dev, "Syncing to a disabled ring!");
                        return -EINVAL;
                }
 
-               if (amdgpu_enable_scheduler || !amdgpu_enable_semaphores) {
+               if (amdgpu_enable_scheduler) {
                        r = fence_wait(sync->sync_to[i], true);
                        if (r)
                                return r;
                        continue;
                }
 
-               if (count >= AMDGPU_NUM_SYNCS) {
-                       /* not enough room, wait manually */
-                       r = fence_wait(&fence->base, false);
-                       if (r)
-                               return r;
-                       continue;
-               }
-               r = amdgpu_semaphore_create(adev, &semaphore);
-               if (r)
-                       return r;
-
-               sync->semaphores[count++] = semaphore;
-
-               /* allocate enough space for sync command */
-               r = amdgpu_ring_alloc(other, 16);
-               if (r)
-                       return r;
-
-               /* emit the signal semaphore */
-               if (!amdgpu_semaphore_emit_signal(other, semaphore)) {
-                       /* signaling wasn't successful wait manually */
-                       amdgpu_ring_undo(other);
-                       r = fence_wait(&fence->base, false);
-                       if (r)
-                               return r;
-                       continue;
-               }
-
-               /* we assume caller has already allocated space on waiters ring */
-               if (!amdgpu_semaphore_emit_wait(ring, semaphore)) {
-                       /* waiting wasn't successful wait manually */
-                       amdgpu_ring_undo(other);
-                       r = fence_wait(&fence->base, false);
-                       if (r)
-                               return r;
-                       continue;
-               }
-
-               amdgpu_ring_commit(other);
-               amdgpu_fence_note_sync(fence, ring);
        }
 
        return 0;
@@ -362,7 +309,7 @@ int amdgpu_sync_rings(struct amdgpu_sync *sync,
  * @sync: sync object to use
  * @fence: fence to use for the free
  *
- * Free the sync object by freeing all semaphores in it.
+ * Free the sync object.
  */
 void amdgpu_sync_free(struct amdgpu_device *adev,
                      struct amdgpu_sync *sync,
@@ -378,9 +325,6 @@ void amdgpu_sync_free(struct amdgpu_device *adev,
                kfree(e);
        }
 
-       for (i = 0; i < AMDGPU_NUM_SYNCS; ++i)
-               amdgpu_semaphore_free(adev, &sync->semaphores[i], fence);
-
        for (i = 0; i < AMDGPU_MAX_RINGS; ++i)
                fence_put(sync->sync_to[i]);
 
index 4865615e9c0669d0c2699c7ffd0ae8d11f69b527..05a53f4fc3349e8b5075d56e37c45dcc5da49cf7 100644 (file)
@@ -238,144 +238,10 @@ void amdgpu_test_moves(struct amdgpu_device *adev)
                amdgpu_do_test_moves(adev);
 }
 
-static int amdgpu_test_create_and_emit_fence(struct amdgpu_device *adev,
-                                            struct amdgpu_ring *ring,
-                                            struct fence **fence)
-{
-       uint32_t handle = ring->idx ^ 0xdeafbeef;
-       int r;
-
-       if (ring == &adev->uvd.ring) {
-               r = amdgpu_uvd_get_create_msg(ring, handle, NULL);
-               if (r) {
-                       DRM_ERROR("Failed to get dummy create msg\n");
-                       return r;
-               }
-
-               r = amdgpu_uvd_get_destroy_msg(ring, handle, fence);
-               if (r) {
-                       DRM_ERROR("Failed to get dummy destroy msg\n");
-                       return r;
-               }
-
-       } else if (ring == &adev->vce.ring[0] ||
-                  ring == &adev->vce.ring[1]) {
-               r = amdgpu_vce_get_create_msg(ring, handle, NULL);
-               if (r) {
-                       DRM_ERROR("Failed to get dummy create msg\n");
-                       return r;
-               }
-
-               r = amdgpu_vce_get_destroy_msg(ring, handle, fence);
-               if (r) {
-                       DRM_ERROR("Failed to get dummy destroy msg\n");
-                       return r;
-               }
-       } else {
-               struct amdgpu_fence *a_fence = NULL;
-               r = amdgpu_ring_lock(ring, 64);
-               if (r) {
-                       DRM_ERROR("Failed to lock ring A %d\n", ring->idx);
-                       return r;
-               }
-               amdgpu_fence_emit(ring, AMDGPU_FENCE_OWNER_UNDEFINED, &a_fence);
-               amdgpu_ring_unlock_commit(ring);
-               *fence = &a_fence->base;
-       }
-       return 0;
-}
-
 void amdgpu_test_ring_sync(struct amdgpu_device *adev,
                           struct amdgpu_ring *ringA,
                           struct amdgpu_ring *ringB)
 {
-       struct fence *fence1 = NULL, *fence2 = NULL;
-       struct amdgpu_semaphore *semaphore = NULL;
-       int r;
-
-       r = amdgpu_semaphore_create(adev, &semaphore);
-       if (r) {
-               DRM_ERROR("Failed to create semaphore\n");
-               goto out_cleanup;
-       }
-
-       r = amdgpu_ring_lock(ringA, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_wait(ringA, semaphore);
-       amdgpu_ring_unlock_commit(ringA);
-
-       r = amdgpu_test_create_and_emit_fence(adev, ringA, &fence1);
-       if (r)
-               goto out_cleanup;
-
-       r = amdgpu_ring_lock(ringA, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_wait(ringA, semaphore);
-       amdgpu_ring_unlock_commit(ringA);
-
-       r = amdgpu_test_create_and_emit_fence(adev, ringA, &fence2);
-       if (r)
-               goto out_cleanup;
-
-       mdelay(1000);
-
-       if (fence_is_signaled(fence1)) {
-               DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
-               goto out_cleanup;
-       }
-
-       r = amdgpu_ring_lock(ringB, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring B %p\n", ringB);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_signal(ringB, semaphore);
-       amdgpu_ring_unlock_commit(ringB);
-
-       r = fence_wait(fence1, false);
-       if (r) {
-               DRM_ERROR("Failed to wait for sync fence 1\n");
-               goto out_cleanup;
-       }
-
-       mdelay(1000);
-
-       if (fence_is_signaled(fence2)) {
-               DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
-               goto out_cleanup;
-       }
-
-       r = amdgpu_ring_lock(ringB, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring B %p\n", ringB);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_signal(ringB, semaphore);
-       amdgpu_ring_unlock_commit(ringB);
-
-       r = fence_wait(fence2, false);
-       if (r) {
-               DRM_ERROR("Failed to wait for sync fence 1\n");
-               goto out_cleanup;
-       }
-
-out_cleanup:
-       amdgpu_semaphore_free(adev, &semaphore, NULL);
-
-       if (fence1)
-               fence_put(fence1);
-
-       if (fence2)
-               fence_put(fence2);
-
-       if (r)
-               printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 }
 
 static void amdgpu_test_ring_sync2(struct amdgpu_device *adev,
@@ -383,109 +249,6 @@ static void amdgpu_test_ring_sync2(struct amdgpu_device *adev,
                            struct amdgpu_ring *ringB,
                            struct amdgpu_ring *ringC)
 {
-       struct fence *fenceA = NULL, *fenceB = NULL;
-       struct amdgpu_semaphore *semaphore = NULL;
-       bool sigA, sigB;
-       int i, r;
-
-       r = amdgpu_semaphore_create(adev, &semaphore);
-       if (r) {
-               DRM_ERROR("Failed to create semaphore\n");
-               goto out_cleanup;
-       }
-
-       r = amdgpu_ring_lock(ringA, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_wait(ringA, semaphore);
-       amdgpu_ring_unlock_commit(ringA);
-
-       r = amdgpu_test_create_and_emit_fence(adev, ringA, &fenceA);
-       if (r)
-               goto out_cleanup;
-
-       r = amdgpu_ring_lock(ringB, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring B %d\n", ringB->idx);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_wait(ringB, semaphore);
-       amdgpu_ring_unlock_commit(ringB);
-       r = amdgpu_test_create_and_emit_fence(adev, ringB, &fenceB);
-       if (r)
-               goto out_cleanup;
-
-       mdelay(1000);
-
-       if (fence_is_signaled(fenceA)) {
-               DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
-               goto out_cleanup;
-       }
-       if (fence_is_signaled(fenceB)) {
-               DRM_ERROR("Fence B signaled without waiting for semaphore.\n");
-               goto out_cleanup;
-       }
-
-       r = amdgpu_ring_lock(ringC, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring B %p\n", ringC);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_signal(ringC, semaphore);
-       amdgpu_ring_unlock_commit(ringC);
-
-       for (i = 0; i < 30; ++i) {
-               mdelay(100);
-               sigA = fence_is_signaled(fenceA);
-               sigB = fence_is_signaled(fenceB);
-               if (sigA || sigB)
-                       break;
-       }
-
-       if (!sigA && !sigB) {
-               DRM_ERROR("Neither fence A nor B has been signaled\n");
-               goto out_cleanup;
-       } else if (sigA && sigB) {
-               DRM_ERROR("Both fence A and B has been signaled\n");
-               goto out_cleanup;
-       }
-
-       DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
-
-       r = amdgpu_ring_lock(ringC, 64);
-       if (r) {
-               DRM_ERROR("Failed to lock ring B %p\n", ringC);
-               goto out_cleanup;
-       }
-       amdgpu_semaphore_emit_signal(ringC, semaphore);
-       amdgpu_ring_unlock_commit(ringC);
-
-       mdelay(1000);
-
-       r = fence_wait(fenceA, false);
-       if (r) {
-               DRM_ERROR("Failed to wait for sync fence A\n");
-               goto out_cleanup;
-       }
-       r = fence_wait(fenceB, false);
-       if (r) {
-               DRM_ERROR("Failed to wait for sync fence B\n");
-               goto out_cleanup;
-       }
-
-out_cleanup:
-       amdgpu_semaphore_free(adev, &semaphore, NULL);
-
-       if (fenceA)
-               fence_put(fenceA);
-
-       if (fenceB)
-               fence_put(fenceB);
-
-       if (r)
-               printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
 }
 
 static bool amdgpu_test_sync_possible(struct amdgpu_ring *ringA,
index 8f9834ab1bd5a6ad2e0908dfeb0aa6ff5206fc31..2b94c6391086bd1a7c4f6aed3373667f0d42f16a 100644 (file)
@@ -247,42 +247,6 @@ TRACE_EVENT(amdgpu_bo_list_set,
            TP_printk("list=%p, bo=%p", __entry->list, __entry->bo)
 );
 
-DECLARE_EVENT_CLASS(amdgpu_semaphore_request,
-
-           TP_PROTO(int ring, struct amdgpu_semaphore *sem),
-
-           TP_ARGS(ring, sem),
-
-           TP_STRUCT__entry(
-                            __field(int, ring)
-                            __field(signed, waiters)
-                            __field(uint64_t, gpu_addr)
-                            ),
-
-           TP_fast_assign(
-                          __entry->ring = ring;
-                          __entry->waiters = sem->waiters;
-                          __entry->gpu_addr = sem->gpu_addr;
-                          ),
-
-           TP_printk("ring=%u, waiters=%d, addr=%010Lx", __entry->ring,
-                     __entry->waiters, __entry->gpu_addr)
-);
-
-DEFINE_EVENT(amdgpu_semaphore_request, amdgpu_semaphore_signale,
-
-           TP_PROTO(int ring, struct amdgpu_semaphore *sem),
-
-           TP_ARGS(ring, sem)
-);
-
-DEFINE_EVENT(amdgpu_semaphore_request, amdgpu_semaphore_wait,
-
-           TP_PROTO(int ring, struct amdgpu_semaphore *sem),
-
-           TP_ARGS(ring, sem)
-);
-
 #endif
 
 /* This part must be outside protection */
index a745eeeb5d8200f6b92e259c655b10b658c4cad5..e882fbfacb121de520a63302c62c0830e362b4d8 100644 (file)
@@ -742,30 +742,6 @@ out:
        return r;
 }
 
-/**
- * amdgpu_vce_ring_emit_semaphore - emit a semaphore command
- *
- * @ring: engine to use
- * @semaphore: address of semaphore
- * @emit_wait: true=emit wait, false=emit signal
- *
- */
-bool amdgpu_vce_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                   struct amdgpu_semaphore *semaphore,
-                                   bool emit_wait)
-{
-       uint64_t addr = semaphore->gpu_addr;
-
-       amdgpu_ring_write(ring, VCE_CMD_SEMAPHORE);
-       amdgpu_ring_write(ring, (addr >> 3) & 0x000FFFFF);
-       amdgpu_ring_write(ring, (addr >> 23) & 0x000FFFFF);
-       amdgpu_ring_write(ring, 0x01003000 | (emit_wait ? 1 : 0));
-       if (!emit_wait)
-               amdgpu_ring_write(ring, VCE_CMD_END);
-
-       return true;
-}
-
 /**
  * amdgpu_vce_ring_emit_ib - execute indirect buffer
  *
index ba2da8ee59067c9e03cf5f02fab64a8a3ef21042..5538cf725c85afc8765df47920262bec9abe5801 100644 (file)
@@ -34,9 +34,6 @@ int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
                               struct fence **fence);
 void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp);
 int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx);
-bool amdgpu_vce_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                   struct amdgpu_semaphore *semaphore,
-                                   bool emit_wait);
 void amdgpu_vce_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib);
 void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
                                unsigned flags);
index 5f712ceddf08e4765fb544aff0cad26e6bbcd890..41e637a0338fa682e825cba076e56e2bfee852bb 100644 (file)
@@ -294,30 +294,6 @@ static void cik_sdma_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq
        amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
 }
 
-/**
- * cik_sdma_ring_emit_semaphore - emit a semaphore on the dma ring
- *
- * @ring: amdgpu_ring structure holding ring information
- * @semaphore: amdgpu semaphore object
- * @emit_wait: wait or signal semaphore
- *
- * Add a DMA semaphore packet to the ring wait on or signal
- * other rings (CIK).
- */
-static bool cik_sdma_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                        struct amdgpu_semaphore *semaphore,
-                                        bool emit_wait)
-{
-       u64 addr = semaphore->gpu_addr;
-       u32 extra_bits = emit_wait ? 0 : SDMA_SEMAPHORE_EXTRA_S;
-
-       amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits));
-       amdgpu_ring_write(ring, addr & 0xfffffff8);
-       amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
-
-       return true;
-}
-
 /**
  * cik_sdma_gfx_stop - stop the gfx async dma engines
  *
@@ -1297,7 +1273,7 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
        .parse_cs = NULL,
        .emit_ib = cik_sdma_ring_emit_ib,
        .emit_fence = cik_sdma_ring_emit_fence,
-       .emit_semaphore = cik_sdma_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .emit_vm_flush = cik_sdma_ring_emit_vm_flush,
        .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush,
        .test_ring = cik_sdma_ring_test_ring,
index 6c76139de1c9c5992579a7eb44d1f6f4eff9da9a..709ab0b8771dd5fb23c8dd24d1e4dade363401a0 100644 (file)
@@ -2516,36 +2516,6 @@ static void gfx_v7_0_ring_emit_fence_compute(struct amdgpu_ring *ring,
        amdgpu_ring_write(ring, upper_32_bits(seq));
 }
 
-/**
- * gfx_v7_0_ring_emit_semaphore - emit a semaphore on the CP ring
- *
- * @ring: amdgpu ring buffer object
- * @semaphore: amdgpu semaphore object
- * @emit_wait: Is this a sempahore wait?
- *
- * Emits a semaphore signal/wait packet to the CP ring and prevents the PFP
- * from running ahead of semaphore waits.
- */
-static bool gfx_v7_0_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                        struct amdgpu_semaphore *semaphore,
-                                        bool emit_wait)
-{
-       uint64_t addr = semaphore->gpu_addr;
-       unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
-
-       amdgpu_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
-       amdgpu_ring_write(ring, addr & 0xffffffff);
-       amdgpu_ring_write(ring, (upper_32_bits(addr) & 0xffff) | sel);
-
-       if (emit_wait && (ring->type == AMDGPU_RING_TYPE_GFX)) {
-               /* Prevent the PFP from running ahead of the semaphore wait */
-               amdgpu_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
-               amdgpu_ring_write(ring, 0x0);
-       }
-
-       return true;
-}
-
 /*
  * IB stuff
  */
@@ -5567,7 +5537,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_gfx = {
        .parse_cs = NULL,
        .emit_ib = gfx_v7_0_ring_emit_ib_gfx,
        .emit_fence = gfx_v7_0_ring_emit_fence_gfx,
-       .emit_semaphore = gfx_v7_0_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .emit_vm_flush = gfx_v7_0_ring_emit_vm_flush,
        .emit_gds_switch = gfx_v7_0_ring_emit_gds_switch,
        .emit_hdp_flush = gfx_v7_0_ring_emit_hdp_flush,
@@ -5583,7 +5553,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = {
        .parse_cs = NULL,
        .emit_ib = gfx_v7_0_ring_emit_ib_compute,
        .emit_fence = gfx_v7_0_ring_emit_fence_compute,
-       .emit_semaphore = gfx_v7_0_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .emit_vm_flush = gfx_v7_0_ring_emit_vm_flush,
        .emit_gds_switch = gfx_v7_0_ring_emit_gds_switch,
        .emit_hdp_flush = gfx_v7_0_ring_emit_hdp_flush,
index 8f8ec37ecd883599b416773a0a6a579da6131515..aa20f626249a8272eb9bb4aba3c682a921e5397f 100644 (file)
@@ -4762,44 +4762,6 @@ static void gfx_v8_0_ring_emit_fence_gfx(struct amdgpu_ring *ring, u64 addr,
 
 }
 
-/**
- * gfx_v8_0_ring_emit_semaphore - emit a semaphore on the CP ring
- *
- * @ring: amdgpu ring buffer object
- * @semaphore: amdgpu semaphore object
- * @emit_wait: Is this a sempahore wait?
- *
- * Emits a semaphore signal/wait packet to the CP ring and prevents the PFP
- * from running ahead of semaphore waits.
- */
-static bool gfx_v8_0_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                        struct amdgpu_semaphore *semaphore,
-                                        bool emit_wait)
-{
-       uint64_t addr = semaphore->gpu_addr;
-       unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
-
-       if (ring->adev->asic_type == CHIP_TOPAZ ||
-           ring->adev->asic_type == CHIP_TONGA ||
-           ring->adev->asic_type == CHIP_FIJI)
-               /* we got a hw semaphore bug in VI TONGA, return false to switch back to sw fence wait */
-               return false;
-       else {
-               amdgpu_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 2));
-               amdgpu_ring_write(ring, lower_32_bits(addr));
-               amdgpu_ring_write(ring, upper_32_bits(addr));
-               amdgpu_ring_write(ring, sel);
-       }
-
-       if (emit_wait && (ring->type == AMDGPU_RING_TYPE_GFX)) {
-               /* Prevent the PFP from running ahead of the semaphore wait */
-               amdgpu_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
-               amdgpu_ring_write(ring, 0x0);
-       }
-
-       return true;
-}
-
 static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
                                        unsigned vm_id, uint64_t pd_addr)
 {
@@ -5145,7 +5107,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = {
        .parse_cs = NULL,
        .emit_ib = gfx_v8_0_ring_emit_ib_gfx,
        .emit_fence = gfx_v8_0_ring_emit_fence_gfx,
-       .emit_semaphore = gfx_v8_0_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .emit_vm_flush = gfx_v8_0_ring_emit_vm_flush,
        .emit_gds_switch = gfx_v8_0_ring_emit_gds_switch,
        .emit_hdp_flush = gfx_v8_0_ring_emit_hdp_flush,
@@ -5161,7 +5123,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = {
        .parse_cs = NULL,
        .emit_ib = gfx_v8_0_ring_emit_ib_compute,
        .emit_fence = gfx_v8_0_ring_emit_fence_compute,
-       .emit_semaphore = gfx_v8_0_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .emit_vm_flush = gfx_v8_0_ring_emit_vm_flush,
        .emit_gds_switch = gfx_v8_0_ring_emit_gds_switch,
        .emit_hdp_flush = gfx_v8_0_ring_emit_hdp_flush,
index 2cf50180cc51bd496289feb892a2a56b6d81abe0..9bf3313ca9b3eaf257cfaf7d9c8e557cee5e8459 100644 (file)
@@ -334,31 +334,6 @@ static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 se
        amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 }
 
-/**
- * sdma_v2_4_ring_emit_semaphore - emit a semaphore on the dma ring
- *
- * @ring: amdgpu_ring structure holding ring information
- * @semaphore: amdgpu semaphore object
- * @emit_wait: wait or signal semaphore
- *
- * Add a DMA semaphore packet to the ring wait on or signal
- * other rings (VI).
- */
-static bool sdma_v2_4_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                         struct amdgpu_semaphore *semaphore,
-                                         bool emit_wait)
-{
-       u64 addr = semaphore->gpu_addr;
-       u32 sig = emit_wait ? 0 : 1;
-
-       amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SEM) |
-                         SDMA_PKT_SEMAPHORE_HEADER_SIGNAL(sig));
-       amdgpu_ring_write(ring, lower_32_bits(addr) & 0xfffffff8);
-       amdgpu_ring_write(ring, upper_32_bits(addr));
-
-       return true;
-}
-
 /**
  * sdma_v2_4_gfx_stop - stop the gfx async dma engines
  *
@@ -1302,7 +1277,7 @@ static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
        .parse_cs = NULL,
        .emit_ib = sdma_v2_4_ring_emit_ib,
        .emit_fence = sdma_v2_4_ring_emit_fence,
-       .emit_semaphore = sdma_v2_4_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush,
        .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush,
        .test_ring = sdma_v2_4_ring_test_ring,
index ad54c46751b00b3133599ee8bbf47da3afdd93e1..93930ae1ff44704d269d07343d02b0029821966f 100644 (file)
@@ -444,32 +444,6 @@ static void sdma_v3_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 se
        amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 }
 
-
-/**
- * sdma_v3_0_ring_emit_semaphore - emit a semaphore on the dma ring
- *
- * @ring: amdgpu_ring structure holding ring information
- * @semaphore: amdgpu semaphore object
- * @emit_wait: wait or signal semaphore
- *
- * Add a DMA semaphore packet to the ring wait on or signal
- * other rings (VI).
- */
-static bool sdma_v3_0_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                         struct amdgpu_semaphore *semaphore,
-                                         bool emit_wait)
-{
-       u64 addr = semaphore->gpu_addr;
-       u32 sig = emit_wait ? 0 : 1;
-
-       amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SEM) |
-                         SDMA_PKT_SEMAPHORE_HEADER_SIGNAL(sig));
-       amdgpu_ring_write(ring, lower_32_bits(addr) & 0xfffffff8);
-       amdgpu_ring_write(ring, upper_32_bits(addr));
-
-       return true;
-}
-
 /**
  * sdma_v3_0_gfx_stop - stop the gfx async dma engines
  *
@@ -1570,7 +1544,7 @@ static const struct amdgpu_ring_funcs sdma_v3_0_ring_funcs = {
        .parse_cs = NULL,
        .emit_ib = sdma_v3_0_ring_emit_ib,
        .emit_fence = sdma_v3_0_ring_emit_fence,
-       .emit_semaphore = sdma_v3_0_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .emit_vm_flush = sdma_v3_0_ring_emit_vm_flush,
        .emit_hdp_flush = sdma_v3_0_ring_emit_hdp_flush,
        .test_ring = sdma_v3_0_ring_test_ring,
index 5e9f73af83a8431b25d6d153132df3a22ce31e31..1ee5d5307e152818d5d23a87450503e4bffbb836 100644 (file)
@@ -438,33 +438,6 @@ static void uvd_v4_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq
        amdgpu_ring_write(ring, 2);
 }
 
-/**
- * uvd_v4_2_ring_emit_semaphore - emit semaphore command
- *
- * @ring: amdgpu_ring pointer
- * @semaphore: semaphore to emit commands for
- * @emit_wait: true if we should emit a wait command
- *
- * Emit a semaphore command (either wait or signal) to the UVD ring.
- */
-static bool uvd_v4_2_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                        struct amdgpu_semaphore *semaphore,
-                                        bool emit_wait)
-{
-       uint64_t addr = semaphore->gpu_addr;
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_ADDR_LOW, 0));
-       amdgpu_ring_write(ring, (addr >> 3) & 0x000FFFFF);
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_ADDR_HIGH, 0));
-       amdgpu_ring_write(ring, (addr >> 23) & 0x000FFFFF);
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CMD, 0));
-       amdgpu_ring_write(ring, 0x80 | (emit_wait ? 1 : 0));
-
-       return true;
-}
-
 /**
  * uvd_v4_2_ring_test_ring - register write test
  *
@@ -882,7 +855,7 @@ static const struct amdgpu_ring_funcs uvd_v4_2_ring_funcs = {
        .parse_cs = amdgpu_uvd_ring_parse_cs,
        .emit_ib = uvd_v4_2_ring_emit_ib,
        .emit_fence = uvd_v4_2_ring_emit_fence,
-       .emit_semaphore = uvd_v4_2_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .test_ring = uvd_v4_2_ring_test_ring,
        .test_ib = uvd_v4_2_ring_test_ib,
        .insert_nop = amdgpu_ring_insert_nop,
index 38864f5629814c7782682b4b8436b67e30aede3a..a928f51091c2ef7df32d1f9a4da054b1e98ced37 100644 (file)
@@ -482,33 +482,6 @@ static void uvd_v5_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq
        amdgpu_ring_write(ring, 2);
 }
 
-/**
- * uvd_v5_0_ring_emit_semaphore - emit semaphore command
- *
- * @ring: amdgpu_ring pointer
- * @semaphore: semaphore to emit commands for
- * @emit_wait: true if we should emit a wait command
- *
- * Emit a semaphore command (either wait or signal) to the UVD ring.
- */
-static bool uvd_v5_0_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                        struct amdgpu_semaphore *semaphore,
-                                        bool emit_wait)
-{
-       uint64_t addr = semaphore->gpu_addr;
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_ADDR_LOW, 0));
-       amdgpu_ring_write(ring, (addr >> 3) & 0x000FFFFF);
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_ADDR_HIGH, 0));
-       amdgpu_ring_write(ring, (addr >> 23) & 0x000FFFFF);
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CMD, 0));
-       amdgpu_ring_write(ring, 0x80 | (emit_wait ? 1 : 0));
-
-       return true;
-}
-
 /**
  * uvd_v5_0_ring_test_ring - register write test
  *
@@ -821,7 +794,7 @@ static const struct amdgpu_ring_funcs uvd_v5_0_ring_funcs = {
        .parse_cs = amdgpu_uvd_ring_parse_cs,
        .emit_ib = uvd_v5_0_ring_emit_ib,
        .emit_fence = uvd_v5_0_ring_emit_fence,
-       .emit_semaphore = uvd_v5_0_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .test_ring = uvd_v5_0_ring_test_ring,
        .test_ib = uvd_v5_0_ring_test_ib,
        .insert_nop = amdgpu_ring_insert_nop,
index 3d5913926436b6b759169575b9e235bc38f0d0df..b387356be3f42f5dba1293db0be55c88c4a6df01 100644 (file)
@@ -721,33 +721,6 @@ static void uvd_v6_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq
        amdgpu_ring_write(ring, 2);
 }
 
-/**
- * uvd_v6_0_ring_emit_semaphore - emit semaphore command
- *
- * @ring: amdgpu_ring pointer
- * @semaphore: semaphore to emit commands for
- * @emit_wait: true if we should emit a wait command
- *
- * Emit a semaphore command (either wait or signal) to the UVD ring.
- */
-static bool uvd_v6_0_ring_emit_semaphore(struct amdgpu_ring *ring,
-                                        struct amdgpu_semaphore *semaphore,
-                                        bool emit_wait)
-{
-       uint64_t addr = semaphore->gpu_addr;
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_ADDR_LOW, 0));
-       amdgpu_ring_write(ring, (addr >> 3) & 0x000FFFFF);
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_ADDR_HIGH, 0));
-       amdgpu_ring_write(ring, (addr >> 23) & 0x000FFFFF);
-
-       amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CMD, 0));
-       amdgpu_ring_write(ring, 0x80 | (emit_wait ? 1 : 0));
-
-       return true;
-}
-
 /**
  * uvd_v6_0_ring_test_ring - register write test
  *
@@ -1062,7 +1035,7 @@ static const struct amdgpu_ring_funcs uvd_v6_0_ring_funcs = {
        .parse_cs = amdgpu_uvd_ring_parse_cs,
        .emit_ib = uvd_v6_0_ring_emit_ib,
        .emit_fence = uvd_v6_0_ring_emit_fence,
-       .emit_semaphore = uvd_v6_0_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .test_ring = uvd_v6_0_ring_test_ring,
        .test_ib = uvd_v6_0_ring_test_ib,
        .insert_nop = amdgpu_ring_insert_nop,
index 52ac7a8f1e58b91f3ad0c441b6a175062bddad29..d3eadd07e7cbba14b8b1dc35e05c283bf1362395 100644 (file)
@@ -639,7 +639,7 @@ static const struct amdgpu_ring_funcs vce_v2_0_ring_funcs = {
        .parse_cs = amdgpu_vce_ring_parse_cs,
        .emit_ib = amdgpu_vce_ring_emit_ib,
        .emit_fence = amdgpu_vce_ring_emit_fence,
-       .emit_semaphore = amdgpu_vce_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .test_ring = amdgpu_vce_ring_test_ring,
        .test_ib = amdgpu_vce_ring_test_ib,
        .insert_nop = amdgpu_ring_insert_nop,
index e99af81e4aec3543278c681418138b12feae4c94..75b55de3f957e88f954450b6450c167bcd09b017 100644 (file)
@@ -759,7 +759,7 @@ static const struct amdgpu_ring_funcs vce_v3_0_ring_funcs = {
        .parse_cs = amdgpu_vce_ring_parse_cs,
        .emit_ib = amdgpu_vce_ring_emit_ib,
        .emit_fence = amdgpu_vce_ring_emit_fence,
-       .emit_semaphore = amdgpu_vce_ring_emit_semaphore,
+       .emit_semaphore = NULL,
        .test_ring = amdgpu_vce_ring_test_ring,
        .test_ib = amdgpu_vce_ring_test_ib,
        .insert_nop = amdgpu_ring_insert_nop,