drm/amdgpu: bypass SRIOV check for shadow size info

Currently, the shadow FW space size and alignment information is
protected under a flag (adev->gfx.cp_gfx_shadow) which gets set
only in case of SRIOV setups.
if (amdgpu_sriov_vf(adev))
    adev->gfx.cp_gfx_shadow = true;

But we need this information for GFX Userqueues, so that user can
create these objects while creating userqueue. This patch series
creates a method to get this information bypassing the dependency
on this check.

This patch:
- adds a new input parameter flag to the gfx.funcs->get_gfx_shadow_info
fptr definition, so that it can accommodate the information without the
check (adev->gfx.cp_gfx_shadow) on request.
- updates the existing definition of amdgpu_gfx_get_gfx_shadow_info to
adjust with this new flag.

Next patch in the series is adding a UAPI which will consume this info.

V2: split this patch from the new UAPI patch

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Arvind Yadav <arvind.yadav@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2 files changed, 16 insertions, 8 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
index 5d70b3ae3fe1..319e6e547c73 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
@@ -305,7 +305,8 @@ struct amdgpu_gfx_funcs {
 	void (*init_spm_golden)(struct amdgpu_device *adev);
 	void (*update_perfmon_mgcg)(struct amdgpu_device *adev, bool enable);
 	int (*get_gfx_shadow_info)(struct amdgpu_device *adev,
-				   struct amdgpu_gfx_shadow_info *shadow_info);
+				   struct amdgpu_gfx_shadow_info *shadow_info,
+				   bool skip_check);
 	enum amdgpu_gfx_partition
 			(*query_partition_mode)(struct amdgpu_device *adev);
 	int (*switch_partition_mode)(struct amdgpu_device *adev,
@@ -503,7 +504,7 @@ struct amdgpu_gfx_ras_mem_id_entry {
 #define amdgpu_gfx_select_se_sh(adev, se, sh, instance, xcc_id) ((adev)->gfx.funcs->select_se_sh((adev), (se), (sh), (instance), (xcc_id)))
 #define amdgpu_gfx_select_me_pipe_q(adev, me, pipe, q, vmid, xcc_id) ((adev)->gfx.funcs->select_me_pipe_q((adev), (me), (pipe), (q), (vmid), (xcc_id)))
 #define amdgpu_gfx_init_spm_golden(adev) (adev)->gfx.funcs->init_spm_golden((adev))
-#define amdgpu_gfx_get_gfx_shadow_info(adev, si) ((adev)->gfx.funcs->get_gfx_shadow_info((adev), (si)))
+#define amdgpu_gfx_get_gfx_shadow_info(adev, si) ((adev)->gfx.funcs->get_gfx_shadow_info((adev), (si), false))
 
 /**
  * amdgpu_gfx_create_bitmask - create a bitmask
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index b061b654d1ec..933c4ad5eff9 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -1086,14 +1086,21 @@ static void gfx_v11_0_select_me_pipe_q(struct amdgpu_device *adev,
 #define MQD_FWWORKAREA_SIZE       484
 #define MQD_FWWORKAREA_ALIGNMENT  256
 
-static int gfx_v11_0_get_gfx_shadow_info(struct amdgpu_device *adev,
+static void gfx_v11_0_get_gfx_shadow_info_nocheck(struct amdgpu_device *adev,
 					 struct amdgpu_gfx_shadow_info *shadow_info)
 {
-	if (adev->gfx.cp_gfx_shadow) {
-		shadow_info->shadow_size = MQD_SHADOW_BASE_SIZE;
-		shadow_info->shadow_alignment = MQD_SHADOW_BASE_ALIGNMENT;
-		shadow_info->csa_size = MQD_FWWORKAREA_SIZE;
-		shadow_info->csa_alignment = MQD_FWWORKAREA_ALIGNMENT;
+	shadow_info->shadow_size = MQD_SHADOW_BASE_SIZE;
+	shadow_info->shadow_alignment = MQD_SHADOW_BASE_ALIGNMENT;
+	shadow_info->csa_size = MQD_FWWORKAREA_SIZE;
+	shadow_info->csa_alignment = MQD_FWWORKAREA_ALIGNMENT;
+}
+
+static int gfx_v11_0_get_gfx_shadow_info(struct amdgpu_device *adev,
+					 struct amdgpu_gfx_shadow_info *shadow_info,
+					 bool skip_check)
+{
+	if (adev->gfx.cp_gfx_shadow || skip_check) {
+		gfx_v11_0_get_gfx_shadow_info_nocheck(adev, shadow_info);
 		return 0;
 	} else {
 		memset(shadow_info, 0, sizeof(struct amdgpu_gfx_shadow_info));