diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
index 59376fa..675e12c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
@@ -44,6 +44,7 @@ struct amdgpu_virt {
 	uint32_t			caps;
 	struct amdgpu_bo		*csa_obj;
 	uint64_t			csa_vmid0_addr;
+	bool chained_ib_support;
 	uint32_t			reg_val_offs;
 	struct mutex			lock;
 	struct amdgpu_irq_src		ack_irq;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 69543d4..3c613c6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -936,6 +936,13 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
 		goto out;
 	cp_hdr = (const struct gfx_firmware_header_v1_0 *)adev->gfx.me_fw->data;
 	adev->gfx.me_fw_version = le32_to_cpu(cp_hdr->header.ucode_version);
+
+	/* chain ib ucode isn't formal released, just disable it by far
+	 * TODO: when ucod ready we should use ucode version to judge if
+	 * chain-ib support or not.
+	 */
+	adev->virt.chained_ib_support = false;
+
 	adev->gfx.me_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version);
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ce.bin", chip_name);
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.h b/drivers/gpu/drm/amd/amdgpu/vi.h
index 575d7ae..719587b 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.h
+++ b/drivers/gpu/drm/amd/amdgpu/vi.h
@@ -28,4 +28,116 @@ void vi_srbm_select(struct amdgpu_device *adev,
 		    u32 me, u32 pipe, u32 queue, u32 vmid);
 int vi_set_ip_blocks(struct amdgpu_device *adev);
 
+struct amdgpu_ce_ib_state
+{
+	uint32_t    ce_ib_completion_status;
+	uint32_t    ce_constegnine_count;
+	uint32_t    ce_ibOffset_ib1;
+	uint32_t    ce_ibOffset_ib2;
+}; /* Total of 4 DWORD */
+
+struct amdgpu_de_ib_state
+{
+	uint32_t    ib_completion_status;
+	uint32_t    de_constEngine_count;
+	uint32_t    ib_offset_ib1;
+	uint32_t    ib_offset_ib2;
+	uint32_t    preamble_begin_ib1;
+	uint32_t    preamble_begin_ib2;
+	uint32_t    preamble_end_ib1;
+	uint32_t    preamble_end_ib2;
+	uint32_t    draw_indirect_baseLo;
+	uint32_t    draw_indirect_baseHi;
+	uint32_t    disp_indirect_baseLo;
+	uint32_t    disp_indirect_baseHi;
+	uint32_t    gds_backup_addrlo;
+	uint32_t    gds_backup_addrhi;
+	uint32_t    index_base_addrlo;
+	uint32_t    index_base_addrhi;
+	uint32_t    sample_cntl;
+}; /* Total of 17 DWORD */
+
+struct amdgpu_ce_ib_state_chained_ib
+{
+	/* section of non chained ib part */
+	uint32_t    ce_ib_completion_status;
+	uint32_t    ce_constegnine_count;
+	uint32_t    ce_ibOffset_ib1;
+	uint32_t    ce_ibOffset_ib2;
+
+	/* section of chained ib */
+	uint32_t    ce_chainib_addrlo_ib1;
+	uint32_t    ce_chainib_addrlo_ib2;
+	uint32_t    ce_chainib_addrhi_ib1;
+	uint32_t    ce_chainib_addrhi_ib2;
+	uint32_t    ce_chainib_size_ib1;
+	uint32_t    ce_chainib_size_ib2;
+}; /* total 10 DWORD */
+
+struct amdgpu_de_ib_state_chained_ib
+{
+	/* section of non chained ib part */
+	uint32_t    ib_completion_status;
+	uint32_t    de_constEngine_count;
+	uint32_t    ib_offset_ib1;
+	uint32_t    ib_offset_ib2;
+
+	/* section of chained ib */
+	uint32_t    chain_ib_addrlo_ib1;
+	uint32_t    chain_ib_addrlo_ib2;
+	uint32_t    chain_ib_addrhi_ib1;
+	uint32_t    chain_ib_addrhi_ib2;
+	uint32_t    chain_ib_size_ib1;
+	uint32_t    chain_ib_size_ib2;
+
+	/* section of non chained ib part */
+	uint32_t    preamble_begin_ib1;
+	uint32_t    preamble_begin_ib2;
+	uint32_t    preamble_end_ib1;
+	uint32_t    preamble_end_ib2;
+
+	/* section of chained ib */
+	uint32_t    chain_ib_pream_addrlo_ib1;
+	uint32_t    chain_ib_pream_addrlo_ib2;
+	uint32_t    chain_ib_pream_addrhi_ib1;
+	uint32_t    chain_ib_pream_addrhi_ib2;
+
+	/* section of non chained ib part */
+	uint32_t    draw_indirect_baseLo;
+	uint32_t    draw_indirect_baseHi;
+	uint32_t    disp_indirect_baseLo;
+	uint32_t    disp_indirect_baseHi;
+	uint32_t    gds_backup_addrlo;
+	uint32_t    gds_backup_addrhi;
+	uint32_t    index_base_addrlo;
+	uint32_t    index_base_addrhi;
+	uint32_t    sample_cntl;
+}; /* Total of 27 DWORD */
+
+struct amdgpu_gfx_meta_data
+{
+	/* 4 DWORD, address must be 4KB aligned */
+	struct amdgpu_ce_ib_state    ce_payload;
+	uint32_t                     reserved1[60];
+	/* 17 DWORD, address must be 64B aligned */
+	struct amdgpu_de_ib_state    de_payload;
+	/* PFP IB base address which get pre-empted */
+	uint32_t                     DeIbBaseAddrLo;
+	uint32_t                     DeIbBaseAddrHi;
+	uint32_t                     reserved2[941];
+}; /* Total of 4K Bytes */
+
+struct amdgpu_gfx_meta_data_chained_ib
+{
+	/* 10 DWORD, address must be 4KB aligned */
+	struct amdgpu_ce_ib_state_chained_ib   ce_payload;
+	uint32_t                               reserved1[54];
+	/* 27 DWORD, address must be 64B aligned */
+	struct amdgpu_de_ib_state_chained_ib   de_payload;
+	/* PFP IB base address which get pre-empted */
+	uint32_t                               DeIbBaseAddrLo;
+	uint32_t                               DeIbBaseAddrHi;
+	uint32_t                               reserved2[931];
+}; /* Total of 4K Bytes */
+
 #endif