amd/vpelib: Setup cost profiling support

Add logs to profile registers writes.

Reviewed-by: Roy Chan <Roy.Chan@amd.com>
Reviewed-by: Jesse Agate <Jesse.Agate@amd.com>
Acked-by: ChuanYu Tseng <ChuanYu.Tseng@amd.com>
Signed-off-by: Nagulendran, Iswara <Iswara.Nagulendran@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35012>

src/amd/vpelib/src/chip/vpe10/vpe10_vpe_desc_writer.c

@@ -46,6 +46,9 @@ enum vpe_status vpe10_vpe_desc_writer_init(
     writer->base_gpu_va      = buf->gpu_va;
     writer->buf              = buf;
     writer->num_config_desc  = 0;
+#ifdef VPE_REGISTER_PROFILE
+    writer->reuse_num_config_dec = 0;
+#endif
     writer->plane_desc_added = false;
     writer->status           = VPE_STATUS_OK;
 
@@ -123,6 +126,10 @@ void vpe10_vpe_desc_writer_add_config_desc(
     writer->buf->gpu_va += size;
     writer->buf->size -= size;
     writer->num_config_desc++;
+#ifdef VPE_REGISTER_PROFILE
+    if (reuse)
+        writer->reuse_num_config_dec++;
+#endif
 }
 
 void vpe10_vpe_desc_writer_complete(struct vpe_desc_writer *writer)

src/amd/vpelib/src/chip/vpe11/vpe11_vpe_desc_writer.c

@@ -47,6 +47,9 @@ enum vpe_status vpe11_vpe_desc_writer_init(
     writer->base_gpu_va      = buf->gpu_va;
     writer->buf              = buf;
     writer->num_config_desc  = 0;
+#ifdef VPE_REGISTER_PROFILE
+    writer->reuse_num_config_dec = 0;
+#endif
     writer->plane_desc_added = false;
     writer->status           = VPE_STATUS_OK;
 

src/amd/vpelib/src/core/config_writer.c

@@ -207,6 +207,9 @@ void config_writer_fill_direct_config_packet_header(
         return;
     }
 
+#ifdef VPE_REGISTER_PROFILE
+    writer->register_count += packet->bits.VPEP_CONFIG_DATA_SIZE + 1;
+#endif
     cmd_space    = (uint32_t *)(uintptr_t)writer->buf->cpu_va;
     *cmd_space++ = packet->u32all;
     writer->buf->cpu_va += w_size;
@@ -241,6 +244,9 @@ void config_writer_fill_direct_config_packet(
         return;
     }
 
+#ifdef VPE_REGISTER_PROFILE
+    writer->register_count++;
+#endif
     cmd_space    = (uint32_t *)(uintptr_t)writer->buf->cpu_va;
     *cmd_space++ = packet->u32all; // Write header
     writer->buf->cpu_va += sizeof(uint32_t);

src/amd/vpelib/src/core/inc/config_writer.h

@@ -91,6 +91,12 @@ struct config_writer {
     void             *callback_ctx;
     config_callback_t callback;
     enum vpe_status   status;
+
+#ifdef VPE_REGISTER_PROFILE
+    uint64_t register_count;
+    uint64_t total_config_count;
+    uint64_t reused_config_count;
+#endif
 };
 
 /** initialize the config writer.

src/amd/vpelib/src/core/inc/vpe_desc_writer.h

@@ -41,6 +41,9 @@ struct vpe_desc_writer {
     uint64_t        base_cpu_va;
 
     uint32_t        num_config_desc;
+#ifdef VPE_REGISTER_PROFILE
+    uint32_t        reuse_num_config_dec;
+#endif
     bool            plane_desc_added;
     enum vpe_status status;
 

src/amd/vpelib/src/core/vpelib.c

@@ -654,6 +654,11 @@ enum vpe_status vpe_build_commands(
 
     vpe_priv = container_of(vpe, struct vpe_priv, pub);
 
+#ifdef VPE_REGISTER_PROFILE
+    vpe_priv->config_writer.register_count = 0;
+    vpe_priv->config_writer.total_config_count = 0;
+    vpe_priv->config_writer.reused_config_count = 0;
+#endif
     if (!vpe_priv->ops_support) {
         VPE_ASSERT(vpe_priv->ops_support);
         status = VPE_STATUS_NOT_SUPPORTED;
@@ -788,7 +793,16 @@ enum vpe_status vpe_build_commands(
                     }
                 }
             }
+#ifdef VPE_REGISTER_PROFILE
+            vpe_priv->config_writer.total_config_count += vpe_priv->vpe_desc_writer.num_config_desc;
+            vpe_priv->config_writer.reused_config_count += vpe_priv->vpe_desc_writer.reuse_num_config_dec;
+#endif
         }
+#ifdef VPE_REGISTER_PROFILE
+        vpe_log("Total Registers Accessed: % d\n", vpe_priv->config_writer.register_count);
+        vpe_log("Total Config Descriptors: % d\n", vpe_priv->config_writer.total_config_count);
+        vpe_log("Total Re-used Config Descriptors: % d\n", vpe_priv->config_writer.reused_config_count);
+#endif
         if ((status == VPE_STATUS_OK) && (vpe_priv->collaboration_mode == true)) {
             status = builder->build_collaborate_sync_cmd(vpe_priv, &curr_bufs);
             if (status != VPE_STATUS_OK) {