diff --git a/src/amd/common/sid.h b/src/amd/common/sid.h
index 6d255f8caa0..20a318a2ba2 100644
--- a/src/amd/common/sid.h
+++ b/src/amd/common/sid.h
@@ -351,10 +351,12 @@
 #define SDMA_TS_SUB_OPCODE_GET_LOCAL_TIMESTAMP     0x1
 #define SDMA_TS_SUB_OPCODE_GET_GLOBAL_TIMESTAMP    0x2
 #define CIK_SDMA_OPCODE_SRBM_WRITE                 0xe
+
 /* There is apparently an undocumented HW limitation that
-   prevents the HW from copying the last 255 bytes of (1 << 22) - 1 */
-#define CIK_SDMA_COPY_MAX_SIZE    0x3fff00   /* almost 4 MB*/
-#define GFX103_SDMA_COPY_MAX_SIZE 0x3fffff00 /* almost 1 GB */
+ * prevents the HW from copying the last 255 bytes of (1 << 22) - 1
+ */
+#define SDMA_V2_0_COPY_MAX_BYTES 0x3fff00   /* almost 4 MB*/
+#define SDMA_V5_2_COPY_MAX_BYTES 0x3fffff00 /* almost 1 GB */
 
 #define SDMA_NOP_PAD CIK_SDMA_PACKET(CIK_SDMA_OPCODE_NOP, 0, 0) /* header-only version */
 
diff --git a/src/amd/vulkan/radv_sdma.c b/src/amd/vulkan/radv_sdma.c
index e3f4dcaf1d2..9cd829c92f6 100644
--- a/src/amd/vulkan/radv_sdma.c
+++ b/src/amd/vulkan/radv_sdma.c
@@ -358,7 +358,7 @@ radv_sdma_copy_buffer(const struct radv_device *device, struct radeon_cmdbuf *cs
       return;
 
    enum amd_gfx_level gfx_level = device->physical_device->rad_info.gfx_level;
-   unsigned max_size_per_packet = gfx_level >= GFX10_3 ? GFX103_SDMA_COPY_MAX_SIZE : CIK_SDMA_COPY_MAX_SIZE;
+   unsigned max_size_per_packet = gfx_level >= GFX10_3 ? SDMA_V5_2_COPY_MAX_BYTES : SDMA_V2_0_COPY_MAX_BYTES;
    unsigned align = ~0u;
    unsigned ncopy = DIV_ROUND_UP(size, max_size_per_packet);