venus: move exp feature init back to ring and remove unused function

This mostly undos 476c771e34fefaf2aab12ca3417d04a5be4ce46d and removes
the unused vn_renderer_submit_simple_sync.

Signed-off-by: Yiwei Zhang <zzyiwei@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22323>

4 files changed, 11 insertions, 122 deletions

diff --git a/src/virtio/vulkan/vn_instance.c b/src/virtio/vulkan/vn_instance.c
index e532fd6688b..1157f3fa1fe 100644
--- a/src/virtio/vulkan/vn_instance.c
+++ b/src/virtio/vulkan/vn_instance.c
@@ -171,11 +171,6 @@ vn_instance_init_ring(struct vn_instance *instance)
    return VK_SUCCESS;
 }
 
-static struct vn_renderer_shmem *
-vn_instance_get_reply_shmem_locked(struct vn_instance *instance,
-                                   size_t size,
-                                   void **ptr);
-
 static VkResult
 vn_instance_init_experimental_features(struct vn_instance *instance)
 {
@@ -187,37 +182,8 @@ vn_instance_init_experimental_features(struct vn_instance *instance)
    }
 
    size_t struct_size = sizeof(instance->experimental);
-
-   /* prepare the reply shmem */
-   const size_t reply_size =
-      vn_sizeof_vkGetVenusExperimentalFeatureData100000MESA_reply(
-         &struct_size, &instance->experimental);
-   void *reply_ptr;
-   struct vn_renderer_shmem *reply_shmem =
-      vn_instance_get_reply_shmem_locked(instance, reply_size, &reply_ptr);
-   if (!reply_shmem)
-      return VK_ERROR_OUT_OF_HOST_MEMORY;
-
-   /* encode the command */
-   uint32_t local_data[16];
-   struct vn_cs_encoder local_enc =
-      VN_CS_ENCODER_INITIALIZER_LOCAL(local_data, sizeof(local_data));
-   vn_encode_vkGetVenusExperimentalFeatureData100000MESA(
-      &local_enc, VK_COMMAND_GENERATE_REPLY_BIT_EXT, &struct_size,
-      &instance->experimental);
-
-   VkResult result = vn_renderer_submit_simple_sync(
-      instance->renderer, local_data, vn_cs_encoder_get_len(&local_enc));
-   if (result != VK_SUCCESS) {
-      vn_renderer_shmem_unref(instance->renderer, reply_shmem);
-      return result;
-   }
-
-   struct vn_cs_decoder reply_dec =
-      VN_CS_DECODER_INITIALIZER(reply_ptr, reply_size);
-   vn_decode_vkGetVenusExperimentalFeatureData100000MESA_reply(
-      &reply_dec, &struct_size, &instance->experimental);
-   vn_renderer_shmem_unref(instance->renderer, reply_shmem);
+   vn_call_vkGetVenusExperimentalFeatureData100000MESA(
+      instance, &struct_size, &instance->experimental);
 
    VkVenusExperimentalFeatures100000MESA *exp_feats = &instance->experimental;
 
@@ -559,6 +525,7 @@ vn_instance_get_reply_shmem_locked(struct vn_instance *instance,
 {
    VN_TRACE_FUNC();
    struct vn_renderer_shmem_pool *pool = &instance->reply_shmem_pool;
+   const struct vn_renderer_shmem *saved_pool_shmem = pool->shmem;
 
    size_t offset;
    struct vn_renderer_shmem *shmem =
@@ -569,14 +536,7 @@ vn_instance_get_reply_shmem_locked(struct vn_instance *instance,
    assert(shmem == pool->shmem);
    *out_ptr = shmem->mmap_ptr + offset;
 
-   bool needs_set_stream = false;
-   if (likely(instance->ring.id)) {
-      needs_set_stream = shmem != instance->ring.reply_shmem;
-   } else {
-      needs_set_stream = shmem != instance->renderer_reply_shmem;
-   }
-
-   if (needs_set_stream) {
+   if (shmem != saved_pool_shmem) {
       uint32_t set_reply_command_stream_data[16];
       struct vn_cs_encoder local_enc = VN_CS_ENCODER_INITIALIZER_LOCAL(
          set_reply_command_stream_data,
@@ -587,19 +547,7 @@ vn_instance_get_reply_shmem_locked(struct vn_instance *instance,
       };
       vn_encode_vkSetReplyCommandStreamMESA(&local_enc, 0, &stream);
       vn_cs_encoder_commit(&local_enc);
-
-      /* vn_instance_init_experimental_features calls this before the ring is
-       * created
-       */
-      if (likely(instance->ring.id)) {
-         vn_instance_ring_submit_locked(instance, &local_enc, NULL, NULL);
-         instance->ring.reply_shmem = shmem;
-      } else {
-         vn_renderer_submit_simple(instance->renderer,
-                                   set_reply_command_stream_data,
-                                   vn_cs_encoder_get_len(&local_enc));
-         instance->renderer_reply_shmem = shmem;
-      }
+      vn_instance_ring_submit_locked(instance, &local_enc, NULL, NULL);
    }
 
    /* TODO avoid this seek command and go lock-free? */
@@ -608,17 +556,7 @@ vn_instance_get_reply_shmem_locked(struct vn_instance *instance,
       seek_reply_command_stream_data, sizeof(seek_reply_command_stream_data));
    vn_encode_vkSeekReplyCommandStreamMESA(&local_enc, 0, offset);
    vn_cs_encoder_commit(&local_enc);
-
-   /* vn_instance_init_experimental_features calls this before the ring is
-    * created
-    */
-   if (likely(instance->ring.id)) {
-      vn_instance_ring_submit_locked(instance, &local_enc, NULL, NULL);
-   } else {
-      vn_renderer_submit_simple(instance->renderer,
-                                seek_reply_command_stream_data,
-                                vn_cs_encoder_get_len(&local_enc));
-   }
+   vn_instance_ring_submit_locked(instance, &local_enc, NULL, NULL);
 
    return shmem;
 }
@@ -754,11 +692,11 @@ vn_CreateInstance(const VkInstanceCreateInfo *pCreateInfo,
    vn_renderer_shmem_pool_init(instance->renderer,
                                &instance->reply_shmem_pool, 1u << 20);
 
-   result = vn_instance_init_experimental_features(instance);
+   result = vn_instance_init_ring(instance);
    if (result != VK_SUCCESS)
       goto fail;
 
-   result = vn_instance_init_ring(instance);
+   result = vn_instance_init_experimental_features(instance);
    if (result != VK_SUCCESS)
       goto fail;
 
diff --git a/src/virtio/vulkan/vn_instance.h b/src/virtio/vulkan/vn_instance.h
index bff0d5b5b56..d526b0199cb 100644
--- a/src/virtio/vulkan/vn_instance.h
+++ b/src/virtio/vulkan/vn_instance.h
@@ -40,24 +40,16 @@ struct vn_instance {
    struct vn_renderer *renderer;
 
    struct vn_renderer_shmem_pool reply_shmem_pool;
-   /* cache "set" stream for renderer submission replies */
-   const struct vn_renderer_shmem *renderer_reply_shmem;
 
    mtx_t ring_idx_mutex;
    uint64_t ring_idx_used_mask;
 
-   /* XXX staged features to be merged to core venus protocol */
-   VkVenusExperimentalFeatures100000MESA experimental;
-
    struct {
       mtx_t mutex;
       struct vn_renderer_shmem *shmem;
       struct vn_ring ring;
       uint64_t id;
 
-      /* cache "set" stream for ring submission replies */
-      const struct vn_renderer_shmem *reply_shmem;
-
       struct vn_cs_encoder upload;
       uint32_t command_dropped;
 
@@ -66,6 +58,9 @@ struct vn_instance {
       uint64_t roundtrip_next;
    } ring;
 
+   /* XXX staged features to be merged to core venus protocol */
+   VkVenusExperimentalFeatures100000MESA experimental;
+
    /* Between the driver and the app, VN_MAX_API_VERSION is what we advertise
     * and base.base.app_info.api_version is what the app requests.
     *
diff --git a/src/virtio/vulkan/vn_renderer_util.c b/src/virtio/vulkan/vn_renderer_util.c
index 4c8809a88bc..895c5335324 100644
--- a/src/virtio/vulkan/vn_renderer_util.c
+++ b/src/virtio/vulkan/vn_renderer_util.c
@@ -5,45 +5,6 @@
 
 #include "vn_renderer_util.h"
 
-VkResult
-vn_renderer_submit_simple_sync(struct vn_renderer *renderer,
-                               const void *cs_data,
-                               size_t cs_size)
-{
-   struct vn_renderer_sync *sync;
-   VkResult result =
-      vn_renderer_sync_create(renderer, 0, VN_RENDERER_SYNC_BINARY, &sync);
-   if (result != VK_SUCCESS)
-      return result;
-
-   const struct vn_renderer_submit submit = {
-      .batches =
-         &(const struct vn_renderer_submit_batch){
-            .cs_data = cs_data,
-            .cs_size = cs_size,
-            .ring_idx = 0, /* CPU ring */
-            .syncs = &sync,
-            .sync_values = &(const uint64_t){ 1 },
-            .sync_count = 1,
-         },
-      .batch_count = 1,
-   };
-   const struct vn_renderer_wait wait = {
-      .timeout = UINT64_MAX,
-      .syncs = &sync,
-      .sync_values = &(const uint64_t){ 1 },
-      .sync_count = 1,
-   };
-
-   result = vn_renderer_submit(renderer, &submit);
-   if (result == VK_SUCCESS)
-      result = vn_renderer_wait(renderer, &wait);
-
-   vn_renderer_sync_destroy(renderer, sync);
-
-   return result;
-}
-
 void
 vn_renderer_shmem_pool_init(UNUSED struct vn_renderer *renderer,
                             struct vn_renderer_shmem_pool *pool,
diff --git a/src/virtio/vulkan/vn_renderer_util.h b/src/virtio/vulkan/vn_renderer_util.h
index 8fd8747a762..3150c880729 100644
--- a/src/virtio/vulkan/vn_renderer_util.h
+++ b/src/virtio/vulkan/vn_renderer_util.h
@@ -34,11 +34,6 @@ vn_renderer_submit_simple(struct vn_renderer *renderer,
    return vn_renderer_submit(renderer, &submit);
 }
 
-VkResult
-vn_renderer_submit_simple_sync(struct vn_renderer *renderer,
-                               const void *cs_data,
-                               size_t cs_size);
-
 void
 vn_renderer_shmem_pool_init(struct vn_renderer *renderer,
                             struct vn_renderer_shmem_pool *pool,