radeonsi: fix syncobj wait timeout
[mesa.git] / src / gallium / winsys / amdgpu / drm / amdgpu_cs.c
index adb46c5b4054aff9a09b61e022e849eb3080b677..f51c7782033d8006082521d2c6e4adc30093887d 100644 (file)
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  */
-/*
- * Authors:
- *      Marek Olšák <maraeo@gmail.com>
- */
 
 #include "amdgpu_cs.h"
-#include "os/os_time.h"
+#include "util/os_time.h"
+#include <inttypes.h>
 #include <stdio.h>
-#include <amdgpu_drm.h>
 
 #include "amd/common/sid.h"
 
@@ -48,45 +44,151 @@ amdgpu_fence_create(struct amdgpu_ctx *ctx, unsigned ip_type,
    struct amdgpu_fence *fence = CALLOC_STRUCT(amdgpu_fence);
 
    fence->reference.count = 1;
+   fence->ws = ctx->ws;
    fence->ctx = ctx;
    fence->fence.context = ctx->ctx;
    fence->fence.ip_type = ip_type;
    fence->fence.ip_instance = ip_instance;
    fence->fence.ring = ring;
-   fence->submission_in_progress = true;
+   util_queue_fence_init(&fence->submitted);
+   util_queue_fence_reset(&fence->submitted);
    p_atomic_inc(&ctx->refcount);
    return (struct pipe_fence_handle *)fence;
 }
 
+static struct pipe_fence_handle *
+amdgpu_fence_import_syncobj(struct radeon_winsys *rws, int fd)
+{
+   struct amdgpu_winsys *ws = amdgpu_winsys(rws);
+   struct amdgpu_fence *fence = CALLOC_STRUCT(amdgpu_fence);
+   int r;
+
+   if (!fence)
+      return NULL;
+
+   pipe_reference_init(&fence->reference, 1);
+   fence->ws = ws;
+
+   r = amdgpu_cs_import_syncobj(ws->dev, fd, &fence->syncobj);
+   if (r) {
+      FREE(fence);
+      return NULL;
+   }
+
+   util_queue_fence_init(&fence->submitted);
+
+   assert(amdgpu_fence_is_syncobj(fence));
+   return (struct pipe_fence_handle*)fence;
+}
+
+static struct pipe_fence_handle *
+amdgpu_fence_import_sync_file(struct radeon_winsys *rws, int fd)
+{
+   struct amdgpu_winsys *ws = amdgpu_winsys(rws);
+   struct amdgpu_fence *fence = CALLOC_STRUCT(amdgpu_fence);
+
+   if (!fence)
+      return NULL;
+
+   pipe_reference_init(&fence->reference, 1);
+   fence->ws = ws;
+   /* fence->ctx == NULL means that the fence is syncobj-based. */
+
+   /* Convert sync_file into syncobj. */
+   int r = amdgpu_cs_create_syncobj(ws->dev, &fence->syncobj);
+   if (r) {
+      FREE(fence);
+      return NULL;
+   }
+
+   r = amdgpu_cs_syncobj_import_sync_file(ws->dev, fence->syncobj, fd);
+   if (r) {
+      amdgpu_cs_destroy_syncobj(ws->dev, fence->syncobj);
+      FREE(fence);
+      return NULL;
+   }
+
+   util_queue_fence_init(&fence->submitted);
+
+   return (struct pipe_fence_handle*)fence;
+}
+
+static int amdgpu_fence_export_sync_file(struct radeon_winsys *rws,
+                                        struct pipe_fence_handle *pfence)
+{
+   struct amdgpu_winsys *ws = amdgpu_winsys(rws);
+   struct amdgpu_fence *fence = (struct amdgpu_fence*)pfence;
+
+   if (amdgpu_fence_is_syncobj(fence)) {
+      int fd, r;
+
+      /* Convert syncobj into sync_file. */
+      r = amdgpu_cs_syncobj_export_sync_file(ws->dev, fence->syncobj, &fd);
+      return r ? -1 : fd;
+   }
+
+   util_queue_fence_wait(&fence->submitted);
+
+   /* Convert the amdgpu fence into a fence FD. */
+   int fd;
+   if (amdgpu_cs_fence_to_handle(ws->dev, &fence->fence,
+                                 AMDGPU_FENCE_TO_HANDLE_GET_SYNC_FILE_FD,
+                                 (uint32_t*)&fd))
+      return -1;
+
+   return fd;
+}
+
+static int amdgpu_export_signalled_sync_file(struct radeon_winsys *rws)
+{
+   struct amdgpu_winsys *ws = amdgpu_winsys(rws);
+   uint32_t syncobj;
+   int fd = -1;
+
+   int r = amdgpu_cs_create_syncobj2(ws->dev, DRM_SYNCOBJ_CREATE_SIGNALED,
+                                     &syncobj);
+   if (r) {
+      return -1;
+   }
+
+   r = amdgpu_cs_syncobj_export_sync_file(ws->dev, syncobj, &fd);
+   if (r) {
+      fd = -1;
+   }
+
+   amdgpu_cs_destroy_syncobj(ws->dev, syncobj);
+   return fd;
+}
+
 static void amdgpu_fence_submitted(struct pipe_fence_handle *fence,
-                               struct amdgpu_cs_request* request,
-                               uint64_t *user_fence_cpu_address)
+                                   uint64_t seq_no,
+                                   uint64_t *user_fence_cpu_address)
 {
-   struct amdgpu_fence *rfence = (struct amdgpu_fence*)fence;
+   struct amdgpu_fence *afence = (struct amdgpu_fence*)fence;
 
-   rfence->fence.fence = request->seq_no;
-   rfence->user_fence_cpu_address = user_fence_cpu_address;
-   rfence->submission_in_progress = false;
+   afence->fence.fence = seq_no;
+   afence->user_fence_cpu_address = user_fence_cpu_address;
+   util_queue_fence_signal(&afence->submitted);
 }
 
 static void amdgpu_fence_signalled(struct pipe_fence_handle *fence)
 {
-   struct amdgpu_fence *rfence = (struct amdgpu_fence*)fence;
+   struct amdgpu_fence *afence = (struct amdgpu_fence*)fence;
 
-   rfence->signalled = true;
-   rfence->submission_in_progress = false;
+   afence->signalled = true;
+   util_queue_fence_signal(&afence->submitted);
 }
 
 bool amdgpu_fence_wait(struct pipe_fence_handle *fence, uint64_t timeout,
                        bool absolute)
 {
-   struct amdgpu_fence *rfence = (struct amdgpu_fence*)fence;
+   struct amdgpu_fence *afence = (struct amdgpu_fence*)fence;
    uint32_t expired;
    int64_t abs_timeout;
    uint64_t *user_fence_cpu;
    int r;
 
-   if (rfence->signalled)
+   if (afence->signalled)
       return true;
 
    if (absolute)
@@ -94,17 +196,26 @@ bool amdgpu_fence_wait(struct pipe_fence_handle *fence, uint64_t timeout,
    else
       abs_timeout = os_time_get_absolute_timeout(timeout);
 
+   /* Handle syncobjs. */
+   if (amdgpu_fence_is_syncobj(afence)) {
+      if (amdgpu_cs_syncobj_wait(afence->ws->dev, &afence->syncobj, 1,
+                                 abs_timeout, 0, NULL))
+         return false;
+
+      afence->signalled = true;
+      return true;
+   }
+
    /* The fence might not have a number assigned if its IB is being
     * submitted in the other thread right now. Wait until the submission
     * is done. */
-   if (!os_wait_until_zero_abs_timeout(&rfence->submission_in_progress,
-                                       abs_timeout))
+   if (!util_queue_fence_wait_timeout(&afence->submitted, abs_timeout))
       return false;
 
-   user_fence_cpu = rfence->user_fence_cpu_address;
+   user_fence_cpu = afence->user_fence_cpu_address;
    if (user_fence_cpu) {
-      if (*user_fence_cpu >= rfence->fence.fence) {
-         rfence->signalled = true;
+      if (*user_fence_cpu >= afence->fence.fence) {
+         afence->signalled = true;
          return true;
       }
 
@@ -114,7 +225,7 @@ bool amdgpu_fence_wait(struct pipe_fence_handle *fence, uint64_t timeout,
    }
 
    /* Now use the libdrm query. */
-   r = amdgpu_cs_query_fence_status(&rfence->fence,
+   r = amdgpu_cs_query_fence_status(&afence->fence,
                                    abs_timeout,
                                    AMDGPU_QUERY_FENCE_TIMEOUT_IS_ABSOLUTE,
                                    &expired);
@@ -126,7 +237,7 @@ bool amdgpu_fence_wait(struct pipe_fence_handle *fence, uint64_t timeout,
    if (expired) {
       /* This variable can only transition from false to true, so it doesn't
        * matter if threads race for it. */
-      rfence->signalled = true;
+      afence->signalled = true;
       return true;
    }
    return false;
@@ -140,7 +251,7 @@ static bool amdgpu_fence_wait_rel_timeout(struct radeon_winsys *rws,
 }
 
 static struct pipe_fence_handle *
-amdgpu_cs_get_next_fence(struct radeon_winsys_cs *rcs)
+amdgpu_cs_get_next_fence(struct radeon_cmdbuf *rcs)
 {
    struct amdgpu_cs *cs = amdgpu_cs(rcs);
    struct pipe_fence_handle *fence = NULL;
@@ -154,9 +265,9 @@ amdgpu_cs_get_next_fence(struct radeon_winsys_cs *rcs)
    }
 
    fence = amdgpu_fence_create(cs->ctx,
-                               cs->csc->request.ip_type,
-                               cs->csc->request.ip_instance,
-                               cs->csc->request.ring);
+                               cs->csc->ib[IB_MAIN].ip_type,
+                               cs->csc->ib[IB_MAIN].ip_instance,
+                               cs->csc->ib[IB_MAIN].ring);
    if (!fence)
       return NULL;
 
@@ -178,6 +289,7 @@ static struct radeon_winsys_ctx *amdgpu_ctx_create(struct radeon_winsys *ws)
 
    ctx->ws = amdgpu_winsys(ws);
    ctx->refcount = 1;
+   ctx->initial_num_total_rejected_cs = ctx->ws->num_total_rejected_cs;
 
    r = amdgpu_cs_ctx_create(ctx->ws->dev, &ctx->ctx);
    if (r) {
@@ -224,45 +336,72 @@ static enum pipe_reset_status
 amdgpu_ctx_query_reset_status(struct radeon_winsys_ctx *rwctx)
 {
    struct amdgpu_ctx *ctx = (struct amdgpu_ctx*)rwctx;
-   uint32_t result, hangs;
    int r;
 
-   r = amdgpu_cs_query_reset_state(ctx->ctx, &result, &hangs);
-   if (r) {
-      fprintf(stderr, "amdgpu: amdgpu_cs_query_reset_state failed. (%i)\n", r);
-      return PIPE_NO_RESET;
+   /* Return a failure due to a GPU hang. */
+   if (ctx->ws->info.drm_minor >= 24) {
+      uint64_t flags;
+
+      r = amdgpu_cs_query_reset_state2(ctx->ctx, &flags);
+      if (r) {
+         fprintf(stderr, "amdgpu: amdgpu_cs_query_reset_state failed. (%i)\n", r);
+         return PIPE_NO_RESET;
+      }
+
+      if (flags & AMDGPU_CTX_QUERY2_FLAGS_RESET) {
+         if (flags & AMDGPU_CTX_QUERY2_FLAGS_GUILTY)
+            return PIPE_GUILTY_CONTEXT_RESET;
+         else
+            return PIPE_INNOCENT_CONTEXT_RESET;
+      }
+   } else {
+      uint32_t result, hangs;
+
+      r = amdgpu_cs_query_reset_state(ctx->ctx, &result, &hangs);
+      if (r) {
+         fprintf(stderr, "amdgpu: amdgpu_cs_query_reset_state failed. (%i)\n", r);
+         return PIPE_NO_RESET;
+      }
+
+      switch (result) {
+      case AMDGPU_CTX_GUILTY_RESET:
+         return PIPE_GUILTY_CONTEXT_RESET;
+      case AMDGPU_CTX_INNOCENT_RESET:
+         return PIPE_INNOCENT_CONTEXT_RESET;
+      case AMDGPU_CTX_UNKNOWN_RESET:
+         return PIPE_UNKNOWN_CONTEXT_RESET;
+      }
    }
 
-   switch (result) {
-   case AMDGPU_CTX_GUILTY_RESET:
-      return PIPE_GUILTY_CONTEXT_RESET;
-   case AMDGPU_CTX_INNOCENT_RESET:
-      return PIPE_INNOCENT_CONTEXT_RESET;
-   case AMDGPU_CTX_UNKNOWN_RESET:
-      return PIPE_UNKNOWN_CONTEXT_RESET;
-   case AMDGPU_CTX_NO_RESET:
-   default:
-      return PIPE_NO_RESET;
+   /* Return a failure due to a rejected command submission. */
+   if (ctx->ws->num_total_rejected_cs > ctx->initial_num_total_rejected_cs) {
+      return ctx->num_rejected_cs ? PIPE_GUILTY_CONTEXT_RESET :
+                                    PIPE_INNOCENT_CONTEXT_RESET;
    }
+   return PIPE_NO_RESET;
 }
 
 /* COMMAND SUBMISSION */
 
 static bool amdgpu_cs_has_user_fence(struct amdgpu_cs_context *cs)
 {
-   return cs->request.ip_type != AMDGPU_HW_IP_UVD &&
-          cs->request.ip_type != AMDGPU_HW_IP_VCE;
+   return cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_UVD &&
+          cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_VCE &&
+          cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_UVD_ENC &&
+          cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_VCN_DEC &&
+          cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_VCN_ENC &&
+          cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_VCN_JPEG;
 }
 
 static bool amdgpu_cs_has_chaining(struct amdgpu_cs *cs)
 {
-   return cs->ctx->ws->info.chip_class >= CIK &&
-          cs->ring_type == RING_GFX;
+   return cs->ctx->ws->info.chip_class >= GFX7 &&
+          (cs->ring_type == RING_GFX || cs->ring_type == RING_COMPUTE);
 }
 
-static unsigned amdgpu_cs_epilog_dws(enum ring_type ring_type)
+static unsigned amdgpu_cs_epilog_dws(struct amdgpu_cs *cs)
 {
-   if (ring_type == RING_GFX)
+   if (amdgpu_cs_has_chaining(cs))
       return 4; /* for chaining */
 
    return 0;
@@ -278,9 +417,12 @@ int amdgpu_lookup_buffer(struct amdgpu_cs_context *cs, struct amdgpu_winsys_bo *
    if (bo->bo) {
       buffers = cs->real_buffers;
       num_buffers = cs->num_real_buffers;
-   } else {
+   } else if (!bo->sparse) {
       buffers = cs->slab_buffers;
       num_buffers = cs->num_slab_buffers;
+   } else {
+      buffers = cs->sparse_buffers;
+      num_buffers = cs->num_sparse_buffers;
    }
 
    /* not found or found */
@@ -307,48 +449,31 @@ int amdgpu_lookup_buffer(struct amdgpu_cs_context *cs, struct amdgpu_winsys_bo *
 }
 
 static int
-amdgpu_lookup_or_add_real_buffer(struct amdgpu_cs *acs, struct amdgpu_winsys_bo *bo)
+amdgpu_do_add_real_buffer(struct amdgpu_cs_context *cs, struct amdgpu_winsys_bo *bo)
 {
-   struct amdgpu_cs_context *cs = acs->csc;
    struct amdgpu_cs_buffer *buffer;
-   unsigned hash;
-   int idx = amdgpu_lookup_buffer(cs, bo);
-
-   if (idx >= 0)
-      return idx;
+   int idx;
 
    /* New buffer, check if the backing array is large enough. */
    if (cs->num_real_buffers >= cs->max_real_buffers) {
       unsigned new_max =
          MAX2(cs->max_real_buffers + 16, (unsigned)(cs->max_real_buffers * 1.3));
       struct amdgpu_cs_buffer *new_buffers;
-      amdgpu_bo_handle *new_handles;
-      uint8_t *new_flags;
 
       new_buffers = MALLOC(new_max * sizeof(*new_buffers));
-      new_handles = MALLOC(new_max * sizeof(*new_handles));
-      new_flags = MALLOC(new_max * sizeof(*new_flags));
 
-      if (!new_buffers || !new_handles || !new_flags) {
-         fprintf(stderr, "amdgpu_lookup_or_add_buffer: allocation failed\n");
+      if (!new_buffers) {
+         fprintf(stderr, "amdgpu_do_add_buffer: allocation failed\n");
          FREE(new_buffers);
-         FREE(new_handles);
-         FREE(new_flags);
          return -1;
       }
 
       memcpy(new_buffers, cs->real_buffers, cs->num_real_buffers * sizeof(*new_buffers));
-      memcpy(new_handles, cs->handles, cs->num_real_buffers * sizeof(*new_handles));
-      memcpy(new_flags, cs->flags, cs->num_real_buffers * sizeof(*new_flags));
 
       FREE(cs->real_buffers);
-      FREE(cs->handles);
-      FREE(cs->flags);
 
       cs->max_real_buffers = new_max;
       cs->real_buffers = new_buffers;
-      cs->handles = new_handles;
-      cs->flags = new_flags;
    }
 
    idx = cs->num_real_buffers;
@@ -356,11 +481,24 @@ amdgpu_lookup_or_add_real_buffer(struct amdgpu_cs *acs, struct amdgpu_winsys_bo
 
    memset(buffer, 0, sizeof(*buffer));
    amdgpu_winsys_bo_reference(&buffer->bo, bo);
-   cs->handles[idx] = bo->bo;
-   cs->flags[idx] = 0;
    p_atomic_inc(&bo->num_cs_references);
    cs->num_real_buffers++;
 
+   return idx;
+}
+
+static int
+amdgpu_lookup_or_add_real_buffer(struct amdgpu_cs *acs, struct amdgpu_winsys_bo *bo)
+{
+   struct amdgpu_cs_context *cs = acs->csc;
+   unsigned hash;
+   int idx = amdgpu_lookup_buffer(cs, bo);
+
+   if (idx >= 0)
+      return idx;
+
+   idx = amdgpu_do_add_real_buffer(cs, bo);
+
    hash = bo->unique_id & (ARRAY_SIZE(cs->buffer_indices_hashlist)-1);
    cs->buffer_indices_hashlist[hash] = idx;
 
@@ -421,7 +559,64 @@ static int amdgpu_lookup_or_add_slab_buffer(struct amdgpu_cs *acs,
    return idx;
 }
 
-static unsigned amdgpu_cs_add_buffer(struct radeon_winsys_cs *rcs,
+static int amdgpu_lookup_or_add_sparse_buffer(struct amdgpu_cs *acs,
+                                              struct amdgpu_winsys_bo *bo)
+{
+   struct amdgpu_cs_context *cs = acs->csc;
+   struct amdgpu_cs_buffer *buffer;
+   unsigned hash;
+   int idx = amdgpu_lookup_buffer(cs, bo);
+
+   if (idx >= 0)
+      return idx;
+
+   /* New buffer, check if the backing array is large enough. */
+   if (cs->num_sparse_buffers >= cs->max_sparse_buffers) {
+      unsigned new_max =
+         MAX2(cs->max_sparse_buffers + 16, (unsigned)(cs->max_sparse_buffers * 1.3));
+      struct amdgpu_cs_buffer *new_buffers;
+
+      new_buffers = REALLOC(cs->sparse_buffers,
+                            cs->max_sparse_buffers * sizeof(*new_buffers),
+                            new_max * sizeof(*new_buffers));
+      if (!new_buffers) {
+         fprintf(stderr, "amdgpu_lookup_or_add_sparse_buffer: allocation failed\n");
+         return -1;
+      }
+
+      cs->max_sparse_buffers = new_max;
+      cs->sparse_buffers = new_buffers;
+   }
+
+   idx = cs->num_sparse_buffers;
+   buffer = &cs->sparse_buffers[idx];
+
+   memset(buffer, 0, sizeof(*buffer));
+   amdgpu_winsys_bo_reference(&buffer->bo, bo);
+   p_atomic_inc(&bo->num_cs_references);
+   cs->num_sparse_buffers++;
+
+   hash = bo->unique_id & (ARRAY_SIZE(cs->buffer_indices_hashlist)-1);
+   cs->buffer_indices_hashlist[hash] = idx;
+
+   /* We delay adding the backing buffers until we really have to. However,
+    * we cannot delay accounting for memory use.
+    */
+   simple_mtx_lock(&bo->lock);
+
+   list_for_each_entry(struct amdgpu_sparse_backing, backing, &bo->u.sparse.backing, list) {
+      if (bo->initial_domain & RADEON_DOMAIN_VRAM)
+         acs->main.base.used_vram += backing->bo->base.size;
+      else if (bo->initial_domain & RADEON_DOMAIN_GTT)
+         acs->main.base.used_gart += backing->bo->base.size;
+   }
+
+   simple_mtx_unlock(&bo->lock);
+
+   return idx;
+}
+
+static unsigned amdgpu_cs_add_buffer(struct radeon_cmdbuf *rcs,
                                     struct pb_buffer *buf,
                                     enum radeon_bo_usage usage,
                                     enum radeon_bo_domain domains,
@@ -436,30 +631,54 @@ static unsigned amdgpu_cs_add_buffer(struct radeon_winsys_cs *rcs,
    struct amdgpu_cs_buffer *buffer;
    int index;
 
-   if (!bo->bo) {
-      index = amdgpu_lookup_or_add_slab_buffer(acs, bo);
-      if (index < 0)
-         return 0;
-
-      buffer = &cs->slab_buffers[index];
-      buffer->usage |= usage;
+   /* Fast exit for no-op calls.
+    * This is very effective with suballocators and linear uploaders that
+    * are outside of the winsys.
+    */
+   if (bo == cs->last_added_bo &&
+       (usage & cs->last_added_bo_usage) == usage &&
+       (1u << priority) & cs->last_added_bo_priority_usage)
+      return cs->last_added_bo_index;
+
+   if (!bo->sparse) {
+      if (!bo->bo) {
+         index = amdgpu_lookup_or_add_slab_buffer(acs, bo);
+         if (index < 0)
+            return 0;
+
+         buffer = &cs->slab_buffers[index];
+         buffer->usage |= usage;
+
+         usage &= ~RADEON_USAGE_SYNCHRONIZED;
+         index = buffer->u.slab.real_idx;
+      } else {
+         index = amdgpu_lookup_or_add_real_buffer(acs, bo);
+         if (index < 0)
+            return 0;
+      }
 
-      usage &= ~RADEON_USAGE_SYNCHRONIZED;
-      index = buffer->u.slab.real_idx;
+      buffer = &cs->real_buffers[index];
    } else {
-      index = amdgpu_lookup_or_add_real_buffer(acs, bo);
+      index = amdgpu_lookup_or_add_sparse_buffer(acs, bo);
       if (index < 0)
          return 0;
+
+      buffer = &cs->sparse_buffers[index];
    }
 
-   buffer = &cs->real_buffers[index];
-   buffer->u.real.priority_usage |= 1llu << priority;
+   buffer->u.real.priority_usage |= 1u << priority;
    buffer->usage |= usage;
-   cs->flags[index] = MAX2(cs->flags[index], priority / 4);
+
+   cs->last_added_bo = bo;
+   cs->last_added_bo_index = index;
+   cs->last_added_bo_usage = buffer->usage;
+   cs->last_added_bo_priority_usage = buffer->u.real.priority_usage;
    return index;
 }
 
-static bool amdgpu_ib_new_buffer(struct amdgpu_winsys *ws, struct amdgpu_ib *ib)
+static bool amdgpu_ib_new_buffer(struct amdgpu_winsys *ws,
+                                 struct amdgpu_ib *ib,
+                                 enum ring_type ring_type)
 {
    struct pb_buffer *pb;
    uint8_t *mapped;
@@ -476,30 +695,24 @@ static bool amdgpu_ib_new_buffer(struct amdgpu_winsys *ws, struct amdgpu_ib *ib)
    else
       buffer_size = 4 *util_next_power_of_two(4 * ib->max_ib_size);
 
-   buffer_size = MIN2(buffer_size, 4 * 512 * 1024);
+   const unsigned min_size = MAX2(ib->max_check_space_size, 8 * 1024 * 4);
+   const unsigned max_size = 512 * 1024 * 4;
 
-   switch (ib->ib_type) {
-   case IB_CONST_PREAMBLE:
-      buffer_size = MAX2(buffer_size, 4 * 1024);
-      break;
-   case IB_CONST:
-      buffer_size = MAX2(buffer_size, 16 * 1024 * 4);
-      break;
-   case IB_MAIN:
-      buffer_size = MAX2(buffer_size, 8 * 1024 * 4);
-      break;
-   default:
-      unreachable("unhandled IB type");
-   }
+   buffer_size = MIN2(buffer_size, max_size);
+   buffer_size = MAX2(buffer_size, min_size); /* min_size is more important */
 
-   pb = ws->base.buffer_create(&ws->base, buffer_size,
-                               ws->info.gart_page_size,
-                               RADEON_DOMAIN_GTT,
-                               RADEON_FLAG_CPU_ACCESS);
+   pb = amdgpu_bo_create(ws, buffer_size,
+                         ws->info.gart_page_size,
+                         RADEON_DOMAIN_GTT,
+                         RADEON_FLAG_NO_INTERPROCESS_SHARING |
+                         (ring_type == RING_GFX ||
+                          ring_type == RING_COMPUTE ||
+                          ring_type == RING_DMA ?
+                          RADEON_FLAG_32BIT | RADEON_FLAG_GTT_WC : 0));
    if (!pb)
       return false;
 
-   mapped = ws->base.buffer_map(pb, NULL, PIPE_TRANSFER_WRITE);
+   mapped = amdgpu_bo_map(pb, NULL, PIPE_TRANSFER_WRITE);
    if (!mapped) {
       pb_reference(&pb, NULL);
       return false;
@@ -516,6 +729,7 @@ static bool amdgpu_ib_new_buffer(struct amdgpu_winsys *ws, struct amdgpu_ib *ib)
 
 static unsigned amdgpu_ib_max_submit_dwords(enum ib_type ib_type)
 {
+   /* The maximum IB size including all chained IBs. */
    switch (ib_type) {
    case IB_MAIN:
       /* Smaller submits means the GPU gets busy sooner and there is less
@@ -523,47 +737,42 @@ static unsigned amdgpu_ib_max_submit_dwords(enum ib_type ib_type)
        *   http://www.phoronix.com/scan.php?page=article&item=mesa-111-si&num=1
        */
       return 20 * 1024;
-   case IB_CONST_PREAMBLE:
-   case IB_CONST:
-      /* There isn't really any reason to limit CE IB size beyond the natural
-       * limit implied by the main IB, except perhaps GTT size. Just return
-       * an extremely large value that we never get anywhere close to.
-       */
-      return 16 * 1024 * 1024;
+   case IB_PARALLEL_COMPUTE:
+      /* Always chain this IB. */
+      return UINT_MAX;
    default:
       unreachable("bad ib_type");
    }
 }
 
-static bool amdgpu_get_new_ib(struct radeon_winsys *ws, struct amdgpu_cs *cs,
+static bool amdgpu_get_new_ib(struct amdgpu_winsys *ws, struct amdgpu_cs *cs,
                               enum ib_type ib_type)
 {
-   struct amdgpu_winsys *aws = (struct amdgpu_winsys*)ws;
    /* Small IBs are better than big IBs, because the GPU goes idle quicker
     * and there is less waiting for buffers and fences. Proof:
     *   http://www.phoronix.com/scan.php?page=article&item=mesa-111-si&num=1
     */
    struct amdgpu_ib *ib = NULL;
-   struct amdgpu_cs_ib_info *info = &cs->csc->ib[ib_type];
-   unsigned ib_size = 0;
+   struct drm_amdgpu_cs_chunk_ib *info = &cs->csc->ib[ib_type];
+   /* This is the minimum size of a contiguous IB. */
+   unsigned ib_size = 4 * 1024 * 4;
 
    switch (ib_type) {
-   case IB_CONST_PREAMBLE:
-      ib = &cs->const_preamble_ib;
-      ib_size = 256 * 4;
-      break;
-   case IB_CONST:
-      ib = &cs->const_ib;
-      ib_size = 8 * 1024 * 4;
+   case IB_PARALLEL_COMPUTE:
+      ib = &cs->compute_ib;
       break;
    case IB_MAIN:
       ib = &cs->main;
-      ib_size = 4 * 1024 * 4;
       break;
    default:
       unreachable("unhandled IB type");
    }
 
+   /* Always allocate at least the size of the biggest cs_check_space call,
+    * because precisely the last call might have requested this size.
+    */
+   ib_size = MAX2(ib_size, ib->max_check_space_size);
+
    if (!amdgpu_cs_has_chaining(cs)) {
       ib_size = MAX2(ib_size,
                      4 * MIN2(util_next_power_of_two(ib->max_ib_size),
@@ -580,14 +789,16 @@ static bool amdgpu_get_new_ib(struct radeon_winsys *ws, struct amdgpu_cs *cs,
    /* Allocate a new buffer for IBs if the current buffer is all used. */
    if (!ib->big_ib_buffer ||
        ib->used_ib_space + ib_size > ib->big_ib_buffer->size) {
-      if (!amdgpu_ib_new_buffer(aws, ib))
+      if (!amdgpu_ib_new_buffer(ws, ib, cs->ring_type))
          return false;
    }
 
-   info->ib_mc_address = amdgpu_winsys_bo(ib->big_ib_buffer)->va +
-                         ib->used_ib_space;
-   info->size = 0;
-   ib->ptr_ib_size = &info->size;
+   info->va_start = amdgpu_winsys_bo(ib->big_ib_buffer)->va + ib->used_ib_space;
+   info->ib_bytes = 0;
+   /* ib_bytes is in dwords and the conversion to bytes will be done before
+    * the CS ioctl. */
+   ib->ptr_ib_size = &info->ib_bytes;
+   ib->ptr_ib_size_inside_ib = false;
 
    amdgpu_cs_add_buffer(&cs->main.base, ib->big_ib_buffer,
                         RADEON_USAGE_READ, 0, RADEON_PRIO_IB1);
@@ -595,59 +806,99 @@ static bool amdgpu_get_new_ib(struct radeon_winsys *ws, struct amdgpu_cs *cs,
    ib->base.current.buf = (uint32_t*)(ib->ib_mapped + ib->used_ib_space);
 
    ib_size = ib->big_ib_buffer->size - ib->used_ib_space;
-   ib->base.current.max_dw = ib_size / 4 - amdgpu_cs_epilog_dws(cs->ring_type);
+   ib->base.current.max_dw = ib_size / 4 - amdgpu_cs_epilog_dws(cs);
+   assert(ib->base.current.max_dw >= ib->max_check_space_size / 4);
+   ib->base.gpu_address = info->va_start;
    return true;
 }
 
-static void amdgpu_ib_finalize(struct amdgpu_ib *ib)
+static void amdgpu_set_ib_size(struct amdgpu_ib *ib)
 {
-   *ib->ptr_ib_size |= ib->base.current.cdw;
+   if (ib->ptr_ib_size_inside_ib) {
+      *ib->ptr_ib_size = ib->base.current.cdw |
+                         S_3F2_CHAIN(1) | S_3F2_VALID(1);
+   } else {
+      *ib->ptr_ib_size = ib->base.current.cdw;
+   }
+}
+
+static void amdgpu_ib_finalize(struct amdgpu_winsys *ws, struct amdgpu_ib *ib)
+{
+   amdgpu_set_ib_size(ib);
    ib->used_ib_space += ib->base.current.cdw * 4;
+   ib->used_ib_space = align(ib->used_ib_space, ws->info.ib_alignment);
    ib->max_ib_size = MAX2(ib->max_ib_size, ib->base.prev_dw + ib->base.current.cdw);
 }
 
-static bool amdgpu_init_cs_context(struct amdgpu_cs_context *cs,
+static bool amdgpu_init_cs_context(struct amdgpu_winsys *ws,
+                                   struct amdgpu_cs_context *cs,
                                    enum ring_type ring_type)
 {
-   int i;
-
    switch (ring_type) {
    case RING_DMA:
-      cs->request.ip_type = AMDGPU_HW_IP_DMA;
+      cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_DMA;
       break;
 
    case RING_UVD:
-      cs->request.ip_type = AMDGPU_HW_IP_UVD;
+      cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_UVD;
+      break;
+
+   case RING_UVD_ENC:
+      cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_UVD_ENC;
       break;
 
    case RING_VCE:
-      cs->request.ip_type = AMDGPU_HW_IP_VCE;
+      cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_VCE;
       break;
 
-   case RING_COMPUTE:
-      cs->request.ip_type = AMDGPU_HW_IP_COMPUTE;
+   case RING_VCN_DEC:
+      cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_VCN_DEC;
       break;
 
-   default:
+   case RING_VCN_ENC:
+      cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_VCN_ENC;
+      break;
+
+   case RING_VCN_JPEG:
+      cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_VCN_JPEG;
+      break;
+
+   case RING_COMPUTE:
    case RING_GFX:
-      cs->request.ip_type = AMDGPU_HW_IP_GFX;
+      cs->ib[IB_MAIN].ip_type = ring_type == RING_GFX ? AMDGPU_HW_IP_GFX :
+                                                        AMDGPU_HW_IP_COMPUTE;
+
+      /* The kernel shouldn't invalidate L2 and vL1. The proper place for cache
+       * invalidation is the beginning of IBs (the previous commit does that),
+       * because completion of an IB doesn't care about the state of GPU caches,
+       * but the beginning of an IB does. Draw calls from multiple IBs can be
+       * executed in parallel, so draw calls from the current IB can finish after
+       * the next IB starts drawing, and so the cache flush at the end of IB
+       * is always late.
+       */
+      if (ws->info.drm_minor >= 26)
+         cs->ib[IB_MAIN].flags = AMDGPU_IB_FLAG_TC_WB_NOT_INVALIDATE;
       break;
-   }
 
-   for (i = 0; i < ARRAY_SIZE(cs->buffer_indices_hashlist); i++) {
-      cs->buffer_indices_hashlist[i] = -1;
+   default:
+      assert(0);
    }
 
-   cs->request.number_of_ibs = 1;
-   cs->request.ibs = &cs->ib[IB_MAIN];
-
-   cs->ib[IB_CONST].flags = AMDGPU_IB_FLAG_CE;
-   cs->ib[IB_CONST_PREAMBLE].flags = AMDGPU_IB_FLAG_CE |
-                                     AMDGPU_IB_FLAG_PREAMBLE;
+   cs->ib[IB_PARALLEL_COMPUTE].ip_type = AMDGPU_HW_IP_COMPUTE;
+   cs->ib[IB_PARALLEL_COMPUTE].flags = AMDGPU_IB_FLAG_TC_WB_NOT_INVALIDATE;
 
+   memset(cs->buffer_indices_hashlist, -1, sizeof(cs->buffer_indices_hashlist));
+   cs->last_added_bo = NULL;
    return true;
 }
 
+static void cleanup_fence_list(struct amdgpu_fence_list *fences)
+{
+   for (unsigned i = 0; i < fences->num; i++)
+      amdgpu_fence_reference(&fences->list[i], NULL);
+   fences->num = 0;
+}
+
 static void amdgpu_cs_context_cleanup(struct amdgpu_cs_context *cs)
 {
    unsigned i;
@@ -660,33 +911,46 @@ static void amdgpu_cs_context_cleanup(struct amdgpu_cs_context *cs)
       p_atomic_dec(&cs->slab_buffers[i].bo->num_cs_references);
       amdgpu_winsys_bo_reference(&cs->slab_buffers[i].bo, NULL);
    }
+   for (i = 0; i < cs->num_sparse_buffers; i++) {
+      p_atomic_dec(&cs->sparse_buffers[i].bo->num_cs_references);
+      amdgpu_winsys_bo_reference(&cs->sparse_buffers[i].bo, NULL);
+   }
+   cleanup_fence_list(&cs->fence_dependencies);
+   cleanup_fence_list(&cs->syncobj_dependencies);
+   cleanup_fence_list(&cs->syncobj_to_signal);
+   cleanup_fence_list(&cs->compute_fence_dependencies);
+   cleanup_fence_list(&cs->compute_start_fence_dependencies);
 
    cs->num_real_buffers = 0;
    cs->num_slab_buffers = 0;
+   cs->num_sparse_buffers = 0;
    amdgpu_fence_reference(&cs->fence, NULL);
 
-   for (i = 0; i < ARRAY_SIZE(cs->buffer_indices_hashlist); i++) {
-      cs->buffer_indices_hashlist[i] = -1;
-   }
+   memset(cs->buffer_indices_hashlist, -1, sizeof(cs->buffer_indices_hashlist));
+   cs->last_added_bo = NULL;
 }
 
 static void amdgpu_destroy_cs_context(struct amdgpu_cs_context *cs)
 {
    amdgpu_cs_context_cleanup(cs);
-   FREE(cs->flags);
    FREE(cs->real_buffers);
-   FREE(cs->handles);
    FREE(cs->slab_buffers);
-   FREE(cs->request.dependencies);
+   FREE(cs->sparse_buffers);
+   FREE(cs->fence_dependencies.list);
+   FREE(cs->syncobj_dependencies.list);
+   FREE(cs->syncobj_to_signal.list);
+   FREE(cs->compute_fence_dependencies.list);
+   FREE(cs->compute_start_fence_dependencies.list);
 }
 
 
-static struct radeon_winsys_cs *
+static struct radeon_cmdbuf *
 amdgpu_cs_create(struct radeon_winsys_ctx *rwctx,
                  enum ring_type ring_type,
                  void (*flush)(void *ctx, unsigned flags,
                                struct pipe_fence_handle **fence),
-                 void *flush_ctx)
+                 void *flush_ctx,
+                 bool stop_exec_on_failure)
 {
    struct amdgpu_ctx *ctx = (struct amdgpu_ctx*)rwctx;
    struct amdgpu_cs *cs;
@@ -702,17 +966,22 @@ amdgpu_cs_create(struct radeon_winsys_ctx *rwctx,
    cs->flush_cs = flush;
    cs->flush_data = flush_ctx;
    cs->ring_type = ring_type;
+   cs->stop_exec_on_failure = stop_exec_on_failure;
+
+   struct amdgpu_cs_fence_info fence_info;
+   fence_info.handle = cs->ctx->user_fence_bo;
+   fence_info.offset = cs->ring_type;
+   amdgpu_cs_chunk_fence_info_to_data(&fence_info, (void*)&cs->fence_chunk);
 
    cs->main.ib_type = IB_MAIN;
-   cs->const_ib.ib_type = IB_CONST;
-   cs->const_preamble_ib.ib_type = IB_CONST_PREAMBLE;
+   cs->compute_ib.ib_type = IB_PARALLEL_COMPUTE;
 
-   if (!amdgpu_init_cs_context(&cs->csc1, ring_type)) {
+   if (!amdgpu_init_cs_context(ctx->ws, &cs->csc1, ring_type)) {
       FREE(cs);
       return NULL;
    }
 
-   if (!amdgpu_init_cs_context(&cs->csc2, ring_type)) {
+   if (!amdgpu_init_cs_context(ctx->ws, &cs->csc2, ring_type)) {
       amdgpu_destroy_cs_context(&cs->csc1);
       FREE(cs);
       return NULL;
@@ -722,7 +991,7 @@ amdgpu_cs_create(struct radeon_winsys_ctx *rwctx,
    cs->csc = &cs->csc1;
    cs->cst = &cs->csc2;
 
-   if (!amdgpu_get_new_ib(&ctx->ws->base, cs, IB_MAIN)) {
+   if (!amdgpu_get_new_ib(ctx->ws, cs, IB_MAIN)) {
       amdgpu_destroy_cs_context(&cs->csc2);
       amdgpu_destroy_cs_context(&cs->csc1);
       FREE(cs);
@@ -733,82 +1002,130 @@ amdgpu_cs_create(struct radeon_winsys_ctx *rwctx,
    return &cs->main.base;
 }
 
-static struct radeon_winsys_cs *
-amdgpu_cs_add_const_ib(struct radeon_winsys_cs *rcs)
+static struct radeon_cmdbuf *
+amdgpu_cs_add_parallel_compute_ib(struct radeon_cmdbuf *ib,
+                                  bool uses_gds_ordered_append)
 {
-   struct amdgpu_cs *cs = (struct amdgpu_cs*)rcs;
+   struct amdgpu_cs *cs = (struct amdgpu_cs*)ib;
    struct amdgpu_winsys *ws = cs->ctx->ws;
 
-   /* only one const IB can be added */
-   if (cs->ring_type != RING_GFX || cs->const_ib.ib_mapped)
+   if (cs->ring_type != RING_GFX)
       return NULL;
 
-   if (!amdgpu_get_new_ib(&ws->base, cs, IB_CONST))
+   /* only one secondary IB can be added */
+   if (cs->compute_ib.ib_mapped)
       return NULL;
 
-   cs->csc->request.number_of_ibs = 2;
-   cs->csc->request.ibs = &cs->csc->ib[IB_CONST];
-
-   cs->cst->request.number_of_ibs = 2;
-   cs->cst->request.ibs = &cs->cst->ib[IB_CONST];
+   /* Allocate the compute IB. */
+   if (!amdgpu_get_new_ib(ws, cs, IB_PARALLEL_COMPUTE))
+      return NULL;
 
-   return &cs->const_ib.base;
+   if (uses_gds_ordered_append) {
+      cs->csc1.ib[IB_PARALLEL_COMPUTE].flags |=
+            AMDGPU_IB_FLAG_RESET_GDS_MAX_WAVE_ID;
+      cs->csc2.ib[IB_PARALLEL_COMPUTE].flags |=
+            AMDGPU_IB_FLAG_RESET_GDS_MAX_WAVE_ID;
+   }
+   return &cs->compute_ib.base;
 }
 
-static struct radeon_winsys_cs *
-amdgpu_cs_add_const_preamble_ib(struct radeon_winsys_cs *rcs)
+static bool
+amdgpu_cs_setup_preemption(struct radeon_cmdbuf *rcs, const uint32_t *preamble_ib,
+                           unsigned preamble_num_dw)
 {
-   struct amdgpu_cs *cs = (struct amdgpu_cs*)rcs;
+   struct amdgpu_ib *ib = amdgpu_ib(rcs);
+   struct amdgpu_cs *cs = amdgpu_cs_from_ib(ib);
    struct amdgpu_winsys *ws = cs->ctx->ws;
+   struct amdgpu_cs_context *csc[2] = {&cs->csc1, &cs->csc2};
+   unsigned size = align(preamble_num_dw * 4, ws->info.ib_alignment);
+   struct pb_buffer *preamble_bo;
+   uint32_t *map;
+
+   /* Create the preamble IB buffer. */
+   preamble_bo = amdgpu_bo_create(ws, size, ws->info.ib_alignment,
+                                  RADEON_DOMAIN_VRAM,
+                                  RADEON_FLAG_NO_INTERPROCESS_SHARING |
+                                  RADEON_FLAG_GTT_WC |
+                                  RADEON_FLAG_READ_ONLY);
+   if (!preamble_bo)
+      return false;
 
-   /* only one const preamble IB can be added and only when the const IB has
-    * also been mapped */
-   if (cs->ring_type != RING_GFX || !cs->const_ib.ib_mapped ||
-       cs->const_preamble_ib.ib_mapped)
-      return NULL;
+   map = (uint32_t*)amdgpu_bo_map(preamble_bo, NULL,
+                                  PIPE_TRANSFER_WRITE | RADEON_TRANSFER_TEMPORARY);
+   if (!map) {
+      pb_reference(&preamble_bo, NULL);
+      return false;
+   }
 
-   if (!amdgpu_get_new_ib(&ws->base, cs, IB_CONST_PREAMBLE))
-      return NULL;
+   /* Upload the preamble IB. */
+   memcpy(map, preamble_ib, preamble_num_dw * 4);
 
-   cs->csc->request.number_of_ibs = 3;
-   cs->csc->request.ibs = &cs->csc->ib[IB_CONST_PREAMBLE];
+   /* Pad the IB. */
+   uint32_t ib_pad_dw_mask = ws->info.ib_pad_dw_mask[cs->ring_type];
+   while (preamble_num_dw & ib_pad_dw_mask)
+      map[preamble_num_dw++] = PKT3_NOP_PAD;
+   amdgpu_bo_unmap(preamble_bo);
 
-   cs->cst->request.number_of_ibs = 3;
-   cs->cst->request.ibs = &cs->cst->ib[IB_CONST_PREAMBLE];
+   for (unsigned i = 0; i < 2; i++) {
+      csc[i]->ib[IB_PREAMBLE] = csc[i]->ib[IB_MAIN];
+      csc[i]->ib[IB_PREAMBLE].flags |= AMDGPU_IB_FLAG_PREAMBLE;
+      csc[i]->ib[IB_PREAMBLE].va_start = amdgpu_winsys_bo(preamble_bo)->va;
+      csc[i]->ib[IB_PREAMBLE].ib_bytes = preamble_num_dw * 4;
 
-   return &cs->const_preamble_ib.base;
+      csc[i]->ib[IB_MAIN].flags |= AMDGPU_IB_FLAG_PREEMPT;
+   }
+
+   assert(!cs->preamble_ib_bo);
+   cs->preamble_ib_bo = preamble_bo;
+
+   amdgpu_cs_add_buffer(rcs, cs->preamble_ib_bo, RADEON_USAGE_READ, 0,
+                        RADEON_PRIO_IB1);
+   return true;
 }
 
-static bool amdgpu_cs_validate(struct radeon_winsys_cs *rcs)
+static bool amdgpu_cs_validate(struct radeon_cmdbuf *rcs)
 {
    return true;
 }
 
-static bool amdgpu_cs_check_space(struct radeon_winsys_cs *rcs, unsigned dw)
+static bool amdgpu_cs_check_space(struct radeon_cmdbuf *rcs, unsigned dw,
+                                  bool force_chaining)
 {
    struct amdgpu_ib *ib = amdgpu_ib(rcs);
    struct amdgpu_cs *cs = amdgpu_cs_from_ib(ib);
    unsigned requested_size = rcs->prev_dw + rcs->current.cdw + dw;
+   unsigned cs_epilog_dw = amdgpu_cs_epilog_dws(cs);
+   unsigned need_byte_size = (dw + cs_epilog_dw) * 4;
    uint64_t va;
    uint32_t *new_ptr_ib_size;
 
    assert(rcs->current.cdw <= rcs->current.max_dw);
 
-   if (requested_size > amdgpu_ib_max_submit_dwords(ib->ib_type))
-      return false;
+   /* 125% of the size for IB epilog. */
+   unsigned safe_byte_size = need_byte_size + need_byte_size / 4;
+   ib->max_check_space_size = MAX2(ib->max_check_space_size,
+                                   safe_byte_size);
 
-   ib->max_ib_size = MAX2(ib->max_ib_size, requested_size);
+   /* If force_chaining is true, we can't return. We have to chain. */
+   if (!force_chaining) {
+      if (requested_size > amdgpu_ib_max_submit_dwords(ib->ib_type))
+         return false;
 
-   if (rcs->current.max_dw - rcs->current.cdw >= dw)
-      return true;
+      ib->max_ib_size = MAX2(ib->max_ib_size, requested_size);
+
+      if (rcs->current.max_dw - rcs->current.cdw >= dw)
+         return true;
+   }
 
-   if (!amdgpu_cs_has_chaining(cs))
+   if (!amdgpu_cs_has_chaining(cs)) {
+      assert(!force_chaining);
       return false;
+   }
 
    /* Allocate a new chunk */
    if (rcs->num_prev >= rcs->max_prev) {
       unsigned new_max_prev = MAX2(1, 2 * rcs->max_prev);
-      struct radeon_winsys_cs_chunk *new_prev;
+      struct radeon_cmdbuf_chunk *new_prev;
 
       new_prev = REALLOC(rcs->prev,
                          sizeof(*new_prev) * rcs->max_prev,
@@ -820,32 +1137,32 @@ static bool amdgpu_cs_check_space(struct radeon_winsys_cs *rcs, unsigned dw)
       rcs->max_prev = new_max_prev;
    }
 
-   if (!amdgpu_ib_new_buffer(cs->ctx->ws, ib))
+   if (!amdgpu_ib_new_buffer(cs->ctx->ws, ib, cs->ring_type))
       return false;
 
    assert(ib->used_ib_space == 0);
    va = amdgpu_winsys_bo(ib->big_ib_buffer)->va;
 
    /* This space was originally reserved. */
-   rcs->current.max_dw += 4;
-   assert(ib->used_ib_space + 4 * rcs->current.max_dw <= ib->big_ib_buffer->size);
+   rcs->current.max_dw += cs_epilog_dw;
 
-   /* Pad with NOPs and add INDIRECT_BUFFER packet */
-   while ((rcs->current.cdw & 7) != 4)
-      radeon_emit(rcs, 0xffff1000); /* type3 nop packet */
+   /* Pad with NOPs but leave 4 dwords for INDIRECT_BUFFER. */
+   uint32_t ib_pad_dw_mask = cs->ctx->ws->info.ib_pad_dw_mask[cs->ring_type];
+   while ((rcs->current.cdw & ib_pad_dw_mask) != ib_pad_dw_mask - 3)
+      radeon_emit(rcs, PKT3_NOP_PAD);
 
-   radeon_emit(rcs, PKT3(ib->ib_type == IB_MAIN ? PKT3_INDIRECT_BUFFER_CIK
-                                           : PKT3_INDIRECT_BUFFER_CONST, 2, 0));
+   radeon_emit(rcs, PKT3(PKT3_INDIRECT_BUFFER_CIK, 2, 0));
    radeon_emit(rcs, va);
    radeon_emit(rcs, va >> 32);
-   new_ptr_ib_size = &rcs->current.buf[rcs->current.cdw];
-   radeon_emit(rcs, S_3F2_CHAIN(1) | S_3F2_VALID(1));
+   new_ptr_ib_size = &rcs->current.buf[rcs->current.cdw++];
+   assert((rcs->current.cdw & ib_pad_dw_mask) == 0);
 
    assert((rcs->current.cdw & 7) == 0);
    assert(rcs->current.cdw <= rcs->current.max_dw);
 
-   *ib->ptr_ib_size |= rcs->current.cdw;
+   amdgpu_set_ib_size(ib);
    ib->ptr_ib_size = new_ptr_ib_size;
+   ib->ptr_ib_size_inside_ib = true;
 
    /* Hook up the new chunk */
    rcs->prev[rcs->num_prev].buf = rcs->current.buf;
@@ -857,7 +1174,9 @@ static bool amdgpu_cs_check_space(struct radeon_winsys_cs *rcs, unsigned dw)
    ib->base.current.cdw = 0;
 
    ib->base.current.buf = (uint32_t*)(ib->ib_mapped + ib->used_ib_space);
-   ib->base.current.max_dw = ib->big_ib_buffer->size / 4 - amdgpu_cs_epilog_dws(cs->ring_type);
+   ib->base.current.max_dw = ib->big_ib_buffer->size / 4 - cs_epilog_dw;
+   assert(ib->base.current.max_dw >= ib->max_check_space_size / 4);
+   ib->base.gpu_address = va;
 
    amdgpu_cs_add_buffer(&cs->main.base, ib->big_ib_buffer,
                         RADEON_USAGE_READ, 0, RADEON_PRIO_IB1);
@@ -865,7 +1184,7 @@ static bool amdgpu_cs_check_space(struct radeon_winsys_cs *rcs, unsigned dw)
    return true;
 }
 
-static unsigned amdgpu_cs_get_buffer_list(struct radeon_winsys_cs *rcs,
+static unsigned amdgpu_cs_get_buffer_list(struct radeon_cmdbuf *rcs,
                                           struct radeon_bo_list_item *list)
 {
     struct amdgpu_cs_context *cs = amdgpu_cs(rcs)->csc;
@@ -881,27 +1200,93 @@ static unsigned amdgpu_cs_get_buffer_list(struct radeon_winsys_cs *rcs,
     return cs->num_real_buffers;
 }
 
-DEBUG_GET_ONCE_BOOL_OPTION(all_bos, "RADEON_ALL_BOS", false)
+static void add_fence_to_list(struct amdgpu_fence_list *fences,
+                              struct amdgpu_fence *fence)
+{
+   unsigned idx = fences->num++;
+
+   if (idx >= fences->max) {
+      unsigned size;
+      const unsigned increment = 8;
+
+      fences->max = idx + increment;
+      size = fences->max * sizeof(fences->list[0]);
+      fences->list = realloc(fences->list, size);
+      /* Clear the newly-allocated elements. */
+      memset(fences->list + idx, 0,
+             increment * sizeof(fences->list[0]));
+   }
+   amdgpu_fence_reference(&fences->list[idx], (struct pipe_fence_handle*)fence);
+}
+
+static bool is_noop_fence_dependency(struct amdgpu_cs *acs,
+                                     struct amdgpu_fence *fence)
+{
+   struct amdgpu_cs_context *cs = acs->csc;
+
+   /* Detect no-op dependencies only when there is only 1 ring,
+    * because IBs on one ring are always executed one at a time.
+    *
+    * We always want no dependency between back-to-back gfx IBs, because
+    * we need the parallelism between IBs for good performance.
+    */
+   if ((acs->ring_type == RING_GFX ||
+        acs->ctx->ws->info.num_rings[acs->ring_type] == 1) &&
+       !amdgpu_fence_is_syncobj(fence) &&
+       fence->ctx == acs->ctx &&
+       fence->fence.ip_type == cs->ib[IB_MAIN].ip_type &&
+       fence->fence.ip_instance == cs->ib[IB_MAIN].ip_instance &&
+       fence->fence.ring == cs->ib[IB_MAIN].ring)
+      return true;
+
+   return amdgpu_fence_wait((void *)fence, 0, false);
+}
+
+static void amdgpu_cs_add_fence_dependency(struct radeon_cmdbuf *rws,
+                                           struct pipe_fence_handle *pfence,
+                                           unsigned dependency_flags)
+{
+   struct amdgpu_cs *acs = amdgpu_cs(rws);
+   struct amdgpu_cs_context *cs = acs->csc;
+   struct amdgpu_fence *fence = (struct amdgpu_fence*)pfence;
+
+   util_queue_fence_wait(&fence->submitted);
+
+   if (dependency_flags & RADEON_DEPENDENCY_PARALLEL_COMPUTE_ONLY) {
+      /* Syncobjs are not needed here. */
+      assert(!amdgpu_fence_is_syncobj(fence));
+
+      if (acs->ctx->ws->info.has_scheduled_fence_dependency &&
+          dependency_flags & RADEON_DEPENDENCY_START_FENCE)
+         add_fence_to_list(&cs->compute_start_fence_dependencies, fence);
+      else
+         add_fence_to_list(&cs->compute_fence_dependencies, fence);
+      return;
+   }
+
+   /* Start fences are not needed here. */
+   assert(!(dependency_flags & RADEON_DEPENDENCY_START_FENCE));
 
-static void amdgpu_add_fence_dependency(struct amdgpu_cs *acs,
-                                        struct amdgpu_cs_buffer *buffer)
+   if (is_noop_fence_dependency(acs, fence))
+      return;
+
+   if (amdgpu_fence_is_syncobj(fence))
+      add_fence_to_list(&cs->syncobj_dependencies, fence);
+   else
+      add_fence_to_list(&cs->fence_dependencies, fence);
+}
+
+static void amdgpu_add_bo_fence_dependencies(struct amdgpu_cs *acs,
+                                             struct amdgpu_cs_buffer *buffer)
 {
    struct amdgpu_cs_context *cs = acs->csc;
    struct amdgpu_winsys_bo *bo = buffer->bo;
-   struct amdgpu_cs_fence *dep;
    unsigned new_num_fences = 0;
 
    for (unsigned j = 0; j < bo->num_fences; ++j) {
       struct amdgpu_fence *bo_fence = (void *)bo->fences[j];
-      unsigned idx;
-
-      if (bo_fence->ctx == acs->ctx &&
-         bo_fence->fence.ip_type == cs->request.ip_type &&
-         bo_fence->fence.ip_instance == cs->request.ip_instance &&
-         bo_fence->fence.ring == cs->request.ring)
-         continue;
 
-      if (amdgpu_fence_wait((void *)bo_fence, 0, false))
+      if (is_noop_fence_dependency(acs, bo_fence))
          continue;
 
       amdgpu_fence_reference(&bo->fences[new_num_fences], bo->fences[j]);
@@ -910,21 +1295,7 @@ static void amdgpu_add_fence_dependency(struct amdgpu_cs *acs,
       if (!(buffer->usage & RADEON_USAGE_SYNCHRONIZED))
          continue;
 
-      if (bo_fence->submission_in_progress)
-         os_wait_until_zero(&bo_fence->submission_in_progress,
-                            PIPE_TIMEOUT_INFINITE);
-
-      idx = cs->request.number_of_dependencies++;
-      if (idx >= cs->max_dependencies) {
-         unsigned size;
-
-         cs->max_dependencies = idx + 8;
-         size = cs->max_dependencies * sizeof(struct amdgpu_cs_fence);
-         cs->request.dependencies = realloc(cs->request.dependencies, size);
-      }
-
-      dep = &cs->request.dependencies[idx];
-      memcpy(dep, &bo_fence->fence, sizeof(*dep));
+      add_fence_to_list(&cs->fence_dependencies, bo_fence);
    }
 
    for (unsigned j = new_num_fences; j < bo->num_fences; ++j)
@@ -933,47 +1304,117 @@ static void amdgpu_add_fence_dependency(struct amdgpu_cs *acs,
    bo->num_fences = new_num_fences;
 }
 
-/* Since the kernel driver doesn't synchronize execution between different
- * rings automatically, we have to add fence dependencies manually.
+/* Add the given list of fences to the buffer's fence list.
+ *
+ * Must be called with the winsys bo_fence_lock held.
  */
-static void amdgpu_add_fence_dependencies(struct amdgpu_cs *acs)
+void amdgpu_add_fences(struct amdgpu_winsys_bo *bo,
+                       unsigned num_fences,
+                       struct pipe_fence_handle **fences)
 {
-   struct amdgpu_cs_context *cs = acs->csc;
-   int i;
-
-   cs->request.number_of_dependencies = 0;
-
-   for (i = 0; i < cs->num_real_buffers; i++)
-      amdgpu_add_fence_dependency(acs, &cs->real_buffers[i]);
-   for (i = 0; i < cs->num_slab_buffers; i++)
-      amdgpu_add_fence_dependency(acs, &cs->slab_buffers[i]);
-}
-
-static void amdgpu_add_fence(struct amdgpu_winsys_bo *bo,
-                             struct pipe_fence_handle *fence)
-{
-   if (bo->num_fences >= bo->max_fences) {
-      unsigned new_max_fences = MAX2(1, bo->max_fences * 2);
+   if (bo->num_fences + num_fences > bo->max_fences) {
+      unsigned new_max_fences = MAX2(bo->num_fences + num_fences, bo->max_fences * 2);
       struct pipe_fence_handle **new_fences =
          REALLOC(bo->fences,
                  bo->num_fences * sizeof(*new_fences),
                  new_max_fences * sizeof(*new_fences));
-      if (new_fences) {
+      if (likely(new_fences)) {
          bo->fences = new_fences;
          bo->max_fences = new_max_fences;
       } else {
-         fprintf(stderr, "amdgpu_add_fence: allocation failure, dropping fence\n");
+         unsigned drop;
+
+         fprintf(stderr, "amdgpu_add_fences: allocation failure, dropping fence(s)\n");
          if (!bo->num_fences)
             return;
 
-         bo->num_fences--; /* prefer to keep a more recent fence if possible */
+         bo->num_fences--; /* prefer to keep the most recent fence if possible */
          amdgpu_fence_reference(&bo->fences[bo->num_fences], NULL);
+
+         drop = bo->num_fences + num_fences - bo->max_fences;
+         num_fences -= drop;
+         fences += drop;
       }
    }
 
-   bo->fences[bo->num_fences] = NULL;
-   amdgpu_fence_reference(&bo->fences[bo->num_fences], fence);
-   bo->num_fences++;
+   for (unsigned i = 0; i < num_fences; ++i) {
+      bo->fences[bo->num_fences] = NULL;
+      amdgpu_fence_reference(&bo->fences[bo->num_fences], fences[i]);
+      bo->num_fences++;
+   }
+}
+
+static void amdgpu_add_fence_dependencies_bo_list(struct amdgpu_cs *acs,
+                                                  struct pipe_fence_handle *fence,
+                                                  unsigned num_buffers,
+                                                  struct amdgpu_cs_buffer *buffers)
+{
+   for (unsigned i = 0; i < num_buffers; i++) {
+      struct amdgpu_cs_buffer *buffer = &buffers[i];
+      struct amdgpu_winsys_bo *bo = buffer->bo;
+
+      amdgpu_add_bo_fence_dependencies(acs, buffer);
+      p_atomic_inc(&bo->num_active_ioctls);
+      amdgpu_add_fences(bo, 1, &fence);
+   }
+}
+
+/* Since the kernel driver doesn't synchronize execution between different
+ * rings automatically, we have to add fence dependencies manually.
+ */
+static void amdgpu_add_fence_dependencies_bo_lists(struct amdgpu_cs *acs)
+{
+   struct amdgpu_cs_context *cs = acs->csc;
+
+   amdgpu_add_fence_dependencies_bo_list(acs, cs->fence, cs->num_real_buffers, cs->real_buffers);
+   amdgpu_add_fence_dependencies_bo_list(acs, cs->fence, cs->num_slab_buffers, cs->slab_buffers);
+   amdgpu_add_fence_dependencies_bo_list(acs, cs->fence, cs->num_sparse_buffers, cs->sparse_buffers);
+}
+
+static void amdgpu_cs_add_syncobj_signal(struct radeon_cmdbuf *rws,
+                                         struct pipe_fence_handle *fence)
+{
+   struct amdgpu_cs *acs = amdgpu_cs(rws);
+   struct amdgpu_cs_context *cs = acs->csc;
+
+   assert(amdgpu_fence_is_syncobj((struct amdgpu_fence *)fence));
+
+   add_fence_to_list(&cs->syncobj_to_signal, (struct amdgpu_fence*)fence);
+}
+
+/* Add backing of sparse buffers to the buffer list.
+ *
+ * This is done late, during submission, to keep the buffer list short before
+ * submit, and to avoid managing fences for the backing buffers.
+ */
+static bool amdgpu_add_sparse_backing_buffers(struct amdgpu_cs_context *cs)
+{
+   for (unsigned i = 0; i < cs->num_sparse_buffers; ++i) {
+      struct amdgpu_cs_buffer *buffer = &cs->sparse_buffers[i];
+      struct amdgpu_winsys_bo *bo = buffer->bo;
+
+      simple_mtx_lock(&bo->lock);
+
+      list_for_each_entry(struct amdgpu_sparse_backing, backing, &bo->u.sparse.backing, list) {
+         /* We can directly add the buffer here, because we know that each
+          * backing buffer occurs only once.
+          */
+         int idx = amdgpu_do_add_real_buffer(cs, backing->bo);
+         if (idx < 0) {
+            fprintf(stderr, "%s: failed to add buffer\n", __FUNCTION__);
+            simple_mtx_unlock(&bo->lock);
+            return false;
+         }
+
+         cs->real_buffers[idx].usage = buffer->usage & ~RADEON_USAGE_SYNCHRONIZED;
+         cs->real_buffers[idx].u.real.priority_usage = buffer->u.real.priority_usage;
+         p_atomic_inc(&backing->bo->num_active_ioctls);
+      }
+
+      simple_mtx_unlock(&bo->lock);
+   }
+
+   return true;
 }
 
 void amdgpu_cs_submit_ib(void *job, int thread_index)
@@ -982,142 +1423,359 @@ void amdgpu_cs_submit_ib(void *job, int thread_index)
    struct amdgpu_winsys *ws = acs->ctx->ws;
    struct amdgpu_cs_context *cs = acs->cst;
    int i, r;
+   uint32_t bo_list = 0;
+   uint64_t seq_no = 0;
+   bool has_user_fence = amdgpu_cs_has_user_fence(cs);
+   bool use_bo_list_create = ws->info.drm_minor < 27;
+   struct drm_amdgpu_bo_list_in bo_list_in;
+
+   /* Prepare the buffer list. */
+   if (ws->debug_all_bos) {
+      /* The buffer list contains all buffers. This is a slow path that
+       * ensures that no buffer is missing in the BO list.
+       */
+      unsigned num_handles = 0;
+      struct drm_amdgpu_bo_list_entry *list =
+         alloca(ws->num_buffers * sizeof(struct drm_amdgpu_bo_list_entry));
+      struct amdgpu_winsys_bo *bo;
 
-   cs->request.fence_info.handle = NULL;
-   if (amdgpu_cs_has_user_fence(cs)) {
-       cs->request.fence_info.handle = acs->ctx->user_fence_bo;
-       cs->request.fence_info.offset = acs->ring_type;
-   }
+      simple_mtx_lock(&ws->global_bo_list_lock);
+      LIST_FOR_EACH_ENTRY(bo, &ws->global_bo_list, u.real.global_list_item) {
+         list[num_handles].bo_handle = bo->u.real.kms_handle;
+         list[num_handles].bo_priority = 0;
+         ++num_handles;
+      }
 
-   /* Create the buffer list.
-    * Use a buffer list containing all allocated buffers if requested.
-    */
-   if (debug_get_option_all_bos()) {
-      struct amdgpu_winsys_bo *bo;
-      amdgpu_bo_handle *handles;
-      unsigned num = 0;
+      r = amdgpu_bo_list_create_raw(ws->dev, ws->num_buffers, list, &bo_list);
+      simple_mtx_unlock(&ws->global_bo_list_lock);
+      if (r) {
+         fprintf(stderr, "amdgpu: buffer list creation failed (%d)\n", r);
+         goto cleanup;
+      }
+   } else {
+      if (!amdgpu_add_sparse_backing_buffers(cs)) {
+         fprintf(stderr, "amdgpu: amdgpu_add_sparse_backing_buffers failed\n");
+         r = -ENOMEM;
+         goto cleanup;
+      }
+
+      struct drm_amdgpu_bo_list_entry *list =
+         alloca((cs->num_real_buffers + 2) * sizeof(struct drm_amdgpu_bo_list_entry));
 
-      pipe_mutex_lock(ws->global_bo_list_lock);
+      unsigned num_handles = 0;
+      for (i = 0; i < cs->num_real_buffers; ++i) {
+         struct amdgpu_cs_buffer *buffer = &cs->real_buffers[i];
+         assert(buffer->u.real.priority_usage != 0);
 
-      handles = malloc(sizeof(handles[0]) * ws->num_buffers);
-      if (!handles) {
-         pipe_mutex_unlock(ws->global_bo_list_lock);
-         amdgpu_cs_context_cleanup(cs);
-         cs->error_code = -ENOMEM;
-         return;
+         list[num_handles].bo_handle = buffer->bo->u.real.kms_handle;
+         list[num_handles].bo_priority = (util_last_bit(buffer->u.real.priority_usage) - 1) / 2;
+         ++num_handles;
       }
 
-      LIST_FOR_EACH_ENTRY(bo, &ws->global_bo_list, u.real.global_list_item) {
-         assert(num < ws->num_buffers);
-         handles[num++] = bo->bo;
+      if (use_bo_list_create) {
+         /* Legacy path creating the buffer list handle and passing it to the CS ioctl. */
+         r = amdgpu_bo_list_create_raw(ws->dev, num_handles, list, &bo_list);
+         if (r) {
+            fprintf(stderr, "amdgpu: buffer list creation failed (%d)\n", r);
+            goto cleanup;
+         }
+      } else {
+         /* Standard path passing the buffer list via the CS ioctl. */
+         bo_list_in.operation = ~0;
+         bo_list_in.list_handle = ~0;
+         bo_list_in.bo_number = num_handles;
+         bo_list_in.bo_info_size = sizeof(struct drm_amdgpu_bo_list_entry);
+         bo_list_in.bo_info_ptr = (uint64_t)(uintptr_t)list;
       }
+   }
+
+   if (acs->ring_type == RING_GFX)
+      ws->gfx_bo_list_counter += cs->num_real_buffers;
 
-      r = amdgpu_bo_list_create(ws->dev, ws->num_buffers,
-                                handles, NULL,
-                                &cs->request.resources);
-      free(handles);
-      pipe_mutex_unlock(ws->global_bo_list_lock);
+   if (acs->stop_exec_on_failure && acs->ctx->num_rejected_cs) {
+      r = -ECANCELED;
    } else {
-      r = amdgpu_bo_list_create(ws->dev, cs->num_real_buffers,
-                                cs->handles, cs->flags,
-                                &cs->request.resources);
-   }
+      struct drm_amdgpu_cs_chunk chunks[7];
+      unsigned num_chunks = 0;
+
+      /* BO list */
+      if (!use_bo_list_create) {
+         chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_BO_HANDLES;
+         chunks[num_chunks].length_dw = sizeof(struct drm_amdgpu_bo_list_in) / 4;
+         chunks[num_chunks].chunk_data = (uintptr_t)&bo_list_in;
+         num_chunks++;
+      }
 
-   if (r) {
-      fprintf(stderr, "amdgpu: buffer list creation failed (%d)\n", r);
-      cs->request.resources = NULL;
-      amdgpu_fence_signalled(cs->fence);
-      cs->error_code = r;
-      goto cleanup;
+      /* Fence dependencies. */
+      unsigned num_dependencies = cs->fence_dependencies.num;
+      if (num_dependencies) {
+         struct drm_amdgpu_cs_chunk_dep *dep_chunk =
+            alloca(num_dependencies * sizeof(*dep_chunk));
+
+         for (unsigned i = 0; i < num_dependencies; i++) {
+            struct amdgpu_fence *fence =
+               (struct amdgpu_fence*)cs->fence_dependencies.list[i];
+
+            assert(util_queue_fence_is_signalled(&fence->submitted));
+            amdgpu_cs_chunk_fence_to_dep(&fence->fence, &dep_chunk[i]);
+         }
+
+         chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_DEPENDENCIES;
+         chunks[num_chunks].length_dw = sizeof(dep_chunk[0]) / 4 * num_dependencies;
+         chunks[num_chunks].chunk_data = (uintptr_t)dep_chunk;
+         num_chunks++;
+      }
+
+      /* Syncobj dependencies. */
+      unsigned num_syncobj_dependencies = cs->syncobj_dependencies.num;
+      if (num_syncobj_dependencies) {
+         struct drm_amdgpu_cs_chunk_sem *sem_chunk =
+            alloca(num_syncobj_dependencies * sizeof(sem_chunk[0]));
+
+         for (unsigned i = 0; i < num_syncobj_dependencies; i++) {
+            struct amdgpu_fence *fence =
+               (struct amdgpu_fence*)cs->syncobj_dependencies.list[i];
+
+            if (!amdgpu_fence_is_syncobj(fence))
+               continue;
+
+            assert(util_queue_fence_is_signalled(&fence->submitted));
+            sem_chunk[i].handle = fence->syncobj;
+         }
+
+         chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_SYNCOBJ_IN;
+         chunks[num_chunks].length_dw = sizeof(sem_chunk[0]) / 4 * num_syncobj_dependencies;
+         chunks[num_chunks].chunk_data = (uintptr_t)sem_chunk;
+         num_chunks++;
+      }
+
+      /* Submit the parallel compute IB first. */
+      if (cs->ib[IB_PARALLEL_COMPUTE].ib_bytes > 0) {
+         unsigned old_num_chunks = num_chunks;
+
+         /* Add compute fence dependencies. */
+         unsigned num_dependencies = cs->compute_fence_dependencies.num;
+         if (num_dependencies) {
+            struct drm_amdgpu_cs_chunk_dep *dep_chunk =
+               alloca(num_dependencies * sizeof(*dep_chunk));
+
+            for (unsigned i = 0; i < num_dependencies; i++) {
+               struct amdgpu_fence *fence =
+                  (struct amdgpu_fence*)cs->compute_fence_dependencies.list[i];
+
+               assert(util_queue_fence_is_signalled(&fence->submitted));
+               amdgpu_cs_chunk_fence_to_dep(&fence->fence, &dep_chunk[i]);
+            }
+
+            chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_DEPENDENCIES;
+            chunks[num_chunks].length_dw = sizeof(dep_chunk[0]) / 4 * num_dependencies;
+            chunks[num_chunks].chunk_data = (uintptr_t)dep_chunk;
+            num_chunks++;
+         }
+
+         /* Add compute start fence dependencies. */
+         unsigned num_start_dependencies = cs->compute_start_fence_dependencies.num;
+         if (num_start_dependencies) {
+            struct drm_amdgpu_cs_chunk_dep *dep_chunk =
+               alloca(num_start_dependencies * sizeof(*dep_chunk));
+
+            for (unsigned i = 0; i < num_start_dependencies; i++) {
+               struct amdgpu_fence *fence =
+                  (struct amdgpu_fence*)cs->compute_start_fence_dependencies.list[i];
+
+               assert(util_queue_fence_is_signalled(&fence->submitted));
+               amdgpu_cs_chunk_fence_to_dep(&fence->fence, &dep_chunk[i]);
+            }
+
+            chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES;
+            chunks[num_chunks].length_dw = sizeof(dep_chunk[0]) / 4 * num_start_dependencies;
+            chunks[num_chunks].chunk_data = (uintptr_t)dep_chunk;
+            num_chunks++;
+         }
+
+         /* Convert from dwords to bytes. */
+         cs->ib[IB_PARALLEL_COMPUTE].ib_bytes *= 4;
+         chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_IB;
+         chunks[num_chunks].length_dw = sizeof(struct drm_amdgpu_cs_chunk_ib) / 4;
+         chunks[num_chunks].chunk_data = (uintptr_t)&cs->ib[IB_PARALLEL_COMPUTE];
+         num_chunks++;
+
+         r = amdgpu_cs_submit_raw2(ws->dev, acs->ctx->ctx, bo_list,
+                                   num_chunks, chunks, NULL);
+         if (r)
+            goto finalize;
+
+         /* Back off the compute chunks. */
+         num_chunks = old_num_chunks;
+      }
+
+      /* Syncobj signals. */
+      unsigned num_syncobj_to_signal = cs->syncobj_to_signal.num;
+      if (num_syncobj_to_signal) {
+         struct drm_amdgpu_cs_chunk_sem *sem_chunk =
+            alloca(num_syncobj_to_signal * sizeof(sem_chunk[0]));
+
+         for (unsigned i = 0; i < num_syncobj_to_signal; i++) {
+            struct amdgpu_fence *fence =
+               (struct amdgpu_fence*)cs->syncobj_to_signal.list[i];
+
+            assert(amdgpu_fence_is_syncobj(fence));
+            sem_chunk[i].handle = fence->syncobj;
+         }
+
+         chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_SYNCOBJ_OUT;
+         chunks[num_chunks].length_dw = sizeof(sem_chunk[0]) / 4
+                                        * num_syncobj_to_signal;
+         chunks[num_chunks].chunk_data = (uintptr_t)sem_chunk;
+         num_chunks++;
+      }
+
+      /* Fence */
+      if (has_user_fence) {
+         chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_FENCE;
+         chunks[num_chunks].length_dw = sizeof(struct drm_amdgpu_cs_chunk_fence) / 4;
+         chunks[num_chunks].chunk_data = (uintptr_t)&acs->fence_chunk;
+         num_chunks++;
+      }
+
+      /* IB */
+      if (cs->ib[IB_PREAMBLE].ib_bytes) {
+         chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_IB;
+         chunks[num_chunks].length_dw = sizeof(struct drm_amdgpu_cs_chunk_ib) / 4;
+         chunks[num_chunks].chunk_data = (uintptr_t)&cs->ib[IB_PREAMBLE];
+         num_chunks++;
+      }
+
+      /* IB */
+      cs->ib[IB_MAIN].ib_bytes *= 4; /* Convert from dwords to bytes. */
+      chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_IB;
+      chunks[num_chunks].length_dw = sizeof(struct drm_amdgpu_cs_chunk_ib) / 4;
+      chunks[num_chunks].chunk_data = (uintptr_t)&cs->ib[IB_MAIN];
+      num_chunks++;
+
+      if (ws->secure && cs->secure) {
+         cs->ib[IB_PREAMBLE].flags |= AMDGPU_IB_FLAGS_SECURE;
+         cs->ib[IB_MAIN].flags |= AMDGPU_IB_FLAGS_SECURE;
+      } else {
+         cs->ib[IB_PREAMBLE].flags &= ~AMDGPU_IB_FLAGS_SECURE;
+         cs->ib[IB_MAIN].flags &= ~AMDGPU_IB_FLAGS_SECURE;
+      }
+
+      assert(num_chunks <= ARRAY_SIZE(chunks));
+
+      r = amdgpu_cs_submit_raw2(ws->dev, acs->ctx->ctx, bo_list,
+                                num_chunks, chunks, &seq_no);
    }
+finalize:
 
-   r = amdgpu_cs_submit(acs->ctx->ctx, 0, &cs->request, 1);
-   cs->error_code = r;
    if (r) {
       if (r == -ENOMEM)
          fprintf(stderr, "amdgpu: Not enough memory for command submission.\n");
+      else if (r == -ECANCELED)
+         fprintf(stderr, "amdgpu: The CS has been cancelled because the context is lost.\n");
       else
          fprintf(stderr, "amdgpu: The CS has been rejected, "
                  "see dmesg for more information (%i).\n", r);
 
-      amdgpu_fence_signalled(cs->fence);
+      acs->ctx->num_rejected_cs++;
+      ws->num_total_rejected_cs++;
    } else {
       /* Success. */
       uint64_t *user_fence = NULL;
-      if (amdgpu_cs_has_user_fence(cs))
-         user_fence = acs->ctx->user_fence_cpu_address_base +
-                      cs->request.fence_info.offset;
-      amdgpu_fence_submitted(cs->fence, &cs->request, user_fence);
+
+      if (has_user_fence)
+         user_fence = acs->ctx->user_fence_cpu_address_base + acs->ring_type;
+      amdgpu_fence_submitted(cs->fence, seq_no, user_fence);
    }
 
    /* Cleanup. */
-   if (cs->request.resources)
-      amdgpu_bo_list_destroy(cs->request.resources);
+   if (bo_list)
+      amdgpu_bo_list_destroy_raw(ws->dev, bo_list);
 
 cleanup:
+   /* If there was an error, signal the fence, because it won't be signalled
+    * by the hardware. */
+   if (r)
+      amdgpu_fence_signalled(cs->fence);
+
+   cs->error_code = r;
+
    for (i = 0; i < cs->num_real_buffers; i++)
       p_atomic_dec(&cs->real_buffers[i].bo->num_active_ioctls);
    for (i = 0; i < cs->num_slab_buffers; i++)
       p_atomic_dec(&cs->slab_buffers[i].bo->num_active_ioctls);
+   for (i = 0; i < cs->num_sparse_buffers; i++)
+      p_atomic_dec(&cs->sparse_buffers[i].bo->num_active_ioctls);
 
    amdgpu_cs_context_cleanup(cs);
 }
 
 /* Make sure the previous submission is completed. */
-void amdgpu_cs_sync_flush(struct radeon_winsys_cs *rcs)
+void amdgpu_cs_sync_flush(struct radeon_cmdbuf *rcs)
 {
    struct amdgpu_cs *cs = amdgpu_cs(rcs);
-   struct amdgpu_winsys *ws = cs->ctx->ws;
 
    /* Wait for any pending ioctl of this CS to complete. */
-   if (util_queue_is_initialized(&ws->cs_queue))
-      util_queue_job_wait(&cs->flush_completed);
+   util_queue_fence_wait(&cs->flush_completed);
 }
 
-static int amdgpu_cs_flush(struct radeon_winsys_cs *rcs,
+static int amdgpu_cs_flush(struct radeon_cmdbuf *rcs,
                            unsigned flags,
                            struct pipe_fence_handle **fence)
 {
    struct amdgpu_cs *cs = amdgpu_cs(rcs);
    struct amdgpu_winsys *ws = cs->ctx->ws;
    int error_code = 0;
+   uint32_t ib_pad_dw_mask = ws->info.ib_pad_dw_mask[cs->ring_type];
 
-   rcs->current.max_dw += amdgpu_cs_epilog_dws(cs->ring_type);
+   rcs->current.max_dw += amdgpu_cs_epilog_dws(cs);
 
+   /* Pad the IB according to the mask. */
    switch (cs->ring_type) {
    case RING_DMA:
-      /* pad DMA ring to 8 DWs */
-      if (ws->info.chip_class <= SI) {
-         while (rcs->current.cdw & 7)
+      if (ws->info.chip_class <= GFX6) {
+         while (rcs->current.cdw & ib_pad_dw_mask)
             radeon_emit(rcs, 0xf0000000); /* NOP packet */
       } else {
-         while (rcs->current.cdw & 7)
+         while (rcs->current.cdw & ib_pad_dw_mask)
             radeon_emit(rcs, 0x00000000); /* NOP packet */
       }
       break;
    case RING_GFX:
-      /* pad GFX ring to 8 DWs to meet CP fetch alignment requirements */
+   case RING_COMPUTE:
       if (ws->info.gfx_ib_pad_with_type2) {
-         while (rcs->current.cdw & 7)
-            radeon_emit(rcs, 0x80000000); /* type2 nop packet */
+         while (rcs->current.cdw & ib_pad_dw_mask)
+            radeon_emit(rcs, PKT2_NOP_PAD);
       } else {
-         while (rcs->current.cdw & 7)
-            radeon_emit(rcs, 0xffff1000); /* type3 nop packet */
+         while (rcs->current.cdw & ib_pad_dw_mask)
+            radeon_emit(rcs, PKT3_NOP_PAD);
       }
+      if (cs->ring_type == RING_GFX)
+         ws->gfx_ib_size_counter += (rcs->prev_dw + rcs->current.cdw) * 4;
 
-      /* Also pad the const IB. */
-      if (cs->const_ib.ib_mapped)
-         while (!cs->const_ib.base.current.cdw || (cs->const_ib.base.current.cdw & 7))
-            radeon_emit(&cs->const_ib.base, 0xffff1000); /* type3 nop packet */
-
-      if (cs->const_preamble_ib.ib_mapped)
-         while (!cs->const_preamble_ib.base.current.cdw || (cs->const_preamble_ib.base.current.cdw & 7))
-            radeon_emit(&cs->const_preamble_ib.base, 0xffff1000);
+      /* Also pad secondary IBs. */
+      if (cs->compute_ib.ib_mapped) {
+         while (cs->compute_ib.base.current.cdw & ib_pad_dw_mask)
+            radeon_emit(&cs->compute_ib.base, PKT3_NOP_PAD);
+      }
       break;
    case RING_UVD:
-      while (rcs->current.cdw & 15)
+   case RING_UVD_ENC:
+      while (rcs->current.cdw & ib_pad_dw_mask)
          radeon_emit(rcs, 0x80000000); /* type2 nop packet */
       break;
+   case RING_VCN_JPEG:
+      if (rcs->current.cdw % 2)
+         assert(0);
+      while (rcs->current.cdw & ib_pad_dw_mask) {
+         radeon_emit(rcs, 0x60000000); /* nop packet */
+         radeon_emit(rcs, 0x00000000);
+      }
+      break;
+   case RING_VCN_DEC:
+      while (rcs->current.cdw & ib_pad_dw_mask)
+         radeon_emit(rcs, 0x81ff); /* nop packet */
+      break;
    default:
       break;
    }
@@ -1127,20 +1785,16 @@ static int amdgpu_cs_flush(struct radeon_winsys_cs *rcs,
    }
 
    /* If the CS is not empty or overflowed.... */
-   if (radeon_emitted(&cs->main.base, 0) &&
+   if (likely(radeon_emitted(&cs->main.base, 0) &&
        cs->main.base.current.cdw <= cs->main.base.current.max_dw &&
-       !debug_get_option_noop()) {
+       !debug_get_option_noop())) {
       struct amdgpu_cs_context *cur = cs->csc;
-      unsigned i, num_buffers;
 
       /* Set IB sizes. */
-      amdgpu_ib_finalize(&cs->main);
+      amdgpu_ib_finalize(ws, &cs->main);
 
-      if (cs->const_ib.ib_mapped)
-         amdgpu_ib_finalize(&cs->const_ib);
-
-      if (cs->const_preamble_ib.ib_mapped)
-         amdgpu_ib_finalize(&cs->const_preamble_ib);
+      if (cs->compute_ib.ib_mapped)
+         amdgpu_ib_finalize(ws, &cs->compute_ib);
 
       /* Create a fence. */
       amdgpu_fence_reference(&cur->fence, NULL);
@@ -1150,84 +1804,81 @@ static int amdgpu_cs_flush(struct radeon_winsys_cs *rcs,
          cs->next_fence = NULL;
       } else {
          cur->fence = amdgpu_fence_create(cs->ctx,
-                                          cur->request.ip_type,
-                                          cur->request.ip_instance,
-                                          cur->request.ring);
+                                          cur->ib[IB_MAIN].ip_type,
+                                          cur->ib[IB_MAIN].ip_instance,
+                                          cur->ib[IB_MAIN].ring);
       }
       if (fence)
          amdgpu_fence_reference(fence, cur->fence);
 
-      /* Prepare buffers. */
-      pipe_mutex_lock(ws->bo_fence_lock);
-      amdgpu_add_fence_dependencies(cs);
-
-      num_buffers = cur->num_real_buffers;
-      for (i = 0; i < num_buffers; i++) {
-         struct amdgpu_winsys_bo *bo = cur->real_buffers[i].bo;
-         p_atomic_inc(&bo->num_active_ioctls);
-         amdgpu_add_fence(bo, cur->fence);
-      }
-
-      num_buffers = cur->num_slab_buffers;
-      for (i = 0; i < num_buffers; i++) {
-         struct amdgpu_winsys_bo *bo = cur->slab_buffers[i].bo;
-         p_atomic_inc(&bo->num_active_ioctls);
-         amdgpu_add_fence(bo, cur->fence);
-      }
-      pipe_mutex_unlock(ws->bo_fence_lock);
-
       amdgpu_cs_sync_flush(rcs);
 
+      /* Prepare buffers.
+       *
+       * This fence must be held until the submission is queued to ensure
+       * that the order of fence dependency updates matches the order of
+       * submissions.
+       */
+      simple_mtx_lock(&ws->bo_fence_lock);
+      amdgpu_add_fence_dependencies_bo_lists(cs);
+
       /* Swap command streams. "cst" is going to be submitted. */
       cs->csc = cs->cst;
       cs->cst = cur;
 
       /* Submit. */
-      if ((flags & RADEON_FLUSH_ASYNC) &&
-          util_queue_is_initialized(&ws->cs_queue)) {
-         util_queue_add_job(&ws->cs_queue, cs, &cs->flush_completed,
-                            amdgpu_cs_submit_ib, NULL);
-      } else {
-         amdgpu_cs_submit_ib(cs, 0);
-         error_code = cs->cst->error_code;
+      util_queue_add_job(&ws->cs_queue, cs, &cs->flush_completed,
+                         amdgpu_cs_submit_ib, NULL, 0);
+      /* The submission has been queued, unlock the fence now. */
+      simple_mtx_unlock(&ws->bo_fence_lock);
+
+      if (!(flags & PIPE_FLUSH_ASYNC)) {
+         amdgpu_cs_sync_flush(rcs);
+         error_code = cur->error_code;
       }
    } else {
       amdgpu_cs_context_cleanup(cs->csc);
    }
 
-   amdgpu_get_new_ib(&ws->base, cs, IB_MAIN);
-   if (cs->const_ib.ib_mapped)
-      amdgpu_get_new_ib(&ws->base, cs, IB_CONST);
-   if (cs->const_preamble_ib.ib_mapped)
-      amdgpu_get_new_ib(&ws->base, cs, IB_CONST_PREAMBLE);
+   amdgpu_get_new_ib(ws, cs, IB_MAIN);
+   if (cs->compute_ib.ib_mapped)
+      amdgpu_get_new_ib(ws, cs, IB_PARALLEL_COMPUTE);
+
+   if (cs->preamble_ib_bo) {
+      amdgpu_cs_add_buffer(rcs, cs->preamble_ib_bo, RADEON_USAGE_READ, 0,
+                           RADEON_PRIO_IB1);
+   }
 
    cs->main.base.used_gart = 0;
    cs->main.base.used_vram = 0;
 
-   ws->num_gfx_IBs++;
+   if (cs->ring_type == RING_GFX)
+      ws->num_gfx_IBs++;
+   else if (cs->ring_type == RING_DMA)
+      ws->num_sdma_IBs++;
+
    return error_code;
 }
 
-static void amdgpu_cs_destroy(struct radeon_winsys_cs *rcs)
+static void amdgpu_cs_destroy(struct radeon_cmdbuf *rcs)
 {
    struct amdgpu_cs *cs = amdgpu_cs(rcs);
 
    amdgpu_cs_sync_flush(rcs);
    util_queue_fence_destroy(&cs->flush_completed);
    p_atomic_dec(&cs->ctx->ws->num_cs);
+   pb_reference(&cs->preamble_ib_bo, NULL);
    pb_reference(&cs->main.big_ib_buffer, NULL);
    FREE(cs->main.base.prev);
-   pb_reference(&cs->const_ib.big_ib_buffer, NULL);
-   FREE(cs->const_ib.base.prev);
-   pb_reference(&cs->const_preamble_ib.big_ib_buffer, NULL);
-   FREE(cs->const_preamble_ib.base.prev);
+   pb_reference(&cs->compute_ib.big_ib_buffer, NULL);
+   FREE(cs->compute_ib.base.prev);
    amdgpu_destroy_cs_context(&cs->csc1);
    amdgpu_destroy_cs_context(&cs->csc2);
    amdgpu_fence_reference(&cs->next_fence, NULL);
    FREE(cs);
 }
 
-static bool amdgpu_bo_is_referenced(struct radeon_winsys_cs *rcs,
+static bool amdgpu_bo_is_referenced(struct radeon_cmdbuf *rcs,
                                     struct pb_buffer *_buf,
                                     enum radeon_bo_usage usage)
 {
@@ -1237,14 +1888,14 @@ static bool amdgpu_bo_is_referenced(struct radeon_winsys_cs *rcs,
    return amdgpu_bo_is_referenced_by_cs_with_usage(cs, bo, usage);
 }
 
-void amdgpu_cs_init_functions(struct amdgpu_winsys *ws)
+void amdgpu_cs_init_functions(struct amdgpu_screen_winsys *ws)
 {
    ws->base.ctx_create = amdgpu_ctx_create;
    ws->base.ctx_destroy = amdgpu_ctx_destroy;
    ws->base.ctx_query_reset_status = amdgpu_ctx_query_reset_status;
    ws->base.cs_create = amdgpu_cs_create;
-   ws->base.cs_add_const_ib = amdgpu_cs_add_const_ib;
-   ws->base.cs_add_const_preamble_ib = amdgpu_cs_add_const_preamble_ib;
+   ws->base.cs_add_parallel_compute_ib = amdgpu_cs_add_parallel_compute_ib;
+   ws->base.cs_setup_preemption = amdgpu_cs_setup_preemption;
    ws->base.cs_destroy = amdgpu_cs_destroy;
    ws->base.cs_add_buffer = amdgpu_cs_add_buffer;
    ws->base.cs_validate = amdgpu_cs_validate;
@@ -1254,6 +1905,12 @@ void amdgpu_cs_init_functions(struct amdgpu_winsys *ws)
    ws->base.cs_get_next_fence = amdgpu_cs_get_next_fence;
    ws->base.cs_is_buffer_referenced = amdgpu_bo_is_referenced;
    ws->base.cs_sync_flush = amdgpu_cs_sync_flush;
+   ws->base.cs_add_fence_dependency = amdgpu_cs_add_fence_dependency;
+   ws->base.cs_add_syncobj_signal = amdgpu_cs_add_syncobj_signal;
    ws->base.fence_wait = amdgpu_fence_wait_rel_timeout;
    ws->base.fence_reference = amdgpu_fence_reference;
+   ws->base.fence_import_syncobj = amdgpu_fence_import_syncobj;
+   ws->base.fence_import_sync_file = amdgpu_fence_import_sync_file;
+   ws->base.fence_export_sync_file = amdgpu_fence_export_sync_file;
+   ws->base.export_signalled_sync_file = amdgpu_export_signalled_sync_file;
 }