diff --git a/src/amd/vulkan/radv_buffer.c b/src/amd/vulkan/radv_buffer.c
index bf491542944..3ae483a0381 100644
--- a/src/amd/vulkan/radv_buffer.c
+++ b/src/amd/vulkan/radv_buffer.c
@@ -11,6 +11,7 @@
 #include "radv_buffer.h"
 #include "radv_device.h"
 #include "radv_device_memory.h"
+#include "radv_dgc.h"
 #include "radv_entrypoints.h"
 #include "radv_instance.h"
 #include "radv_physical_device.h"
@@ -201,10 +202,14 @@ radv_get_buffer_memory_requirements(struct radv_device *device, VkDeviceSize siz
                 VK_BUFFER_USAGE_2_SAMPLER_DESCRIPTOR_BUFFER_BIT_EXT | VK_BUFFER_USAGE_2_PREPROCESS_BUFFER_BIT_EXT))
       pMemoryRequirements->memoryRequirements.memoryTypeBits = pdev->memory_types_32bit;
 
-   if (flags & VK_BUFFER_CREATE_SPARSE_BINDING_BIT)
+   if (flags & VK_BUFFER_CREATE_SPARSE_BINDING_BIT) {
       pMemoryRequirements->memoryRequirements.alignment = 4096;
-   else
-      pMemoryRequirements->memoryRequirements.alignment = 16;
+   } else {
+      if (usage & VK_BUFFER_USAGE_2_PREPROCESS_BUFFER_BIT_EXT)
+         pMemoryRequirements->memoryRequirements.alignment = radv_dgc_get_buffer_alignment(device);
+      else
+         pMemoryRequirements->memoryRequirements.alignment = 16;
+   }
 
    /* Top level acceleration structures need the bottom 6 bits to store
     * the root ids of instances. The hardware also needs bvh nodes to
diff --git a/src/amd/vulkan/radv_dgc.c b/src/amd/vulkan/radv_dgc.c
index 58a8d7c8a2b..bbdcd53b0a1 100644
--- a/src/amd/vulkan/radv_dgc.c
+++ b/src/amd/vulkan/radv_dgc.c
@@ -57,6 +57,14 @@
  *   trailer
  */
 
+uint32_t
+radv_dgc_get_buffer_alignment(const struct radv_device *device)
+{
+   const struct radv_physical_device *pdev = radv_device_physical(device);
+
+   return MAX2(pdev->info.ip[AMD_IP_GFX].ib_alignment, pdev->info.ip[AMD_IP_COMPUTE].ib_alignment);
+}
+
 static uint32_t
 radv_pad_cmdbuf(const struct radv_device *device, uint32_t size, enum amd_ip_type ip_type)
 {
@@ -2742,8 +2750,7 @@ radv_GetGeneratedCommandsMemoryRequirementsEXT(VkDevice _device,
    get_dgc_cmdbuf_layout(device, layout, pInfo->pNext, pInfo->maxSequenceCount, true, &cmdbuf_layout);
 
    pMemoryRequirements->memoryRequirements.memoryTypeBits = pdev->memory_types_32bit;
-   pMemoryRequirements->memoryRequirements.alignment =
-      MAX2(pdev->info.ip[AMD_IP_GFX].ib_alignment, pdev->info.ip[AMD_IP_COMPUTE].ib_alignment);
+   pMemoryRequirements->memoryRequirements.alignment = radv_dgc_get_buffer_alignment(device);
    pMemoryRequirements->memoryRequirements.size =
       align(cmdbuf_layout.alloc_size, pMemoryRequirements->memoryRequirements.alignment);
 }
diff --git a/src/amd/vulkan/radv_dgc.h b/src/amd/vulkan/radv_dgc.h
index f208a07805a..799863bd732 100644
--- a/src/amd/vulkan/radv_dgc.h
+++ b/src/amd/vulkan/radv_dgc.h
@@ -14,6 +14,7 @@
 #include "vk_device_generated_commands.h"
 
 struct radv_cmd_buffer;
+struct radv_device;
 enum radv_queue_family;
 
 struct radv_indirect_command_layout {
@@ -45,6 +46,8 @@ struct radv_indirect_execution_set {
 VK_DEFINE_NONDISP_HANDLE_CASTS(radv_indirect_execution_set, base, VkIndirectExecutionSetEXT,
                                VK_OBJECT_TYPE_INDIRECT_EXECUTION_SET_EXT);
 
+uint32_t radv_dgc_get_buffer_alignment(const struct radv_device *device);
+
 uint32_t radv_get_indirect_main_cmdbuf_offset(const VkGeneratedCommandsInfoEXT *pGeneratedCommandsInfo);
 uint32_t radv_get_indirect_ace_cmdbuf_offset(const VkGeneratedCommandsInfoEXT *pGeneratedCommandsInfo);