[PATCH] drm/amdgpu: Add new PF2VF flags for VF register access method

[Rohit Khaire]

Add 3 sub flags to notify guest for indirect access of gc, mmhub and ih

Signed-off-by: Rohit Khaire <rohit.khaire at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h    | 11 +++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h | 17 +++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
index 8dd624c20f89..0224f352d060 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
@@ -104,6 +104,17 @@ enum AMDGIM_FEATURE_FLAG {
 	AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8,
 	/* PP ONE VF MODE in GIM */
 	AMDGIM_FEATURE_PP_ONE_VF = (1 << 4),
+	/* Indirect Reg Access enabled */
+	AMDGIM_FETURE_INDIRECT_REG_ACCESS = (1 << 5),
+};
+
+enum AMDGIM_REG_ACCESS_FLAG {
+	/* Use PSP to program IH_RB_CNTL */
+	AMDGIM_FEATURE_IH_REG_PSP_EN = (1 << 0),
+	/* Use RLC to program MMHUB regs */
+	AMDGIM_FEATURE_RLC_MMHUB_EN  = (1 << 1),
+	/* Use RLC to program GC regs */
+	AMDGIM_FEATURE_RLC_GC_EN     = (1 << 2),
 };
 
 struct amdgim_pf2vf_info_v1 {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h b/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h
index 5355827ed0ae..7fed6377d931 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h
@@ -90,11 +90,22 @@ union amd_sriov_msg_feature_flags {
 		uint32_t  host_flr_vramlost  : 1;
 		uint32_t  mm_bw_management   : 1;
 		uint32_t  pp_one_vf_mode     : 1;
-		uint32_t  reserved           : 27;
+		uint32_t  reg_indirect_acc   : 1;
+		uint32_t  reserved           : 26;
 	} flags;
 	uint32_t      all;
 };
 
+union amd_sriov_reg_access_flags {
+	struct {
+		uint32_t vf_reg_access_ih    : 1;
+		uint32_t vf_reg_access_mmhub : 1;
+		uint32_t vf_reg_access_gc    : 1;
+		uint32_t reserved            : 29;
+	} flags;
+	uint32_t all;
+};
+
 union amd_sriov_msg_os_info {
 	struct {
 		uint32_t  windows            : 1;
@@ -149,8 +160,10 @@ struct amd_sriov_msg_pf2vf_info {
 	/* identification in ROCm SMI */
 	uint64_t uuid;
 	uint32_t fcn_idx;
+	/* flags to indicate which register access method VF should use */
+	union amd_sriov_reg_access_flags reg_access_flags;
 	/* reserved */
-	uint32_t reserved[256-26];
+	uint32_t reserved[256-27];
 };
 
 struct amd_sriov_msg_vf2pf_info_header {
-- 
2.17.1