Re: [PATCH] drm/amdgpu: Add flags to distinguish vf/pf/pt mode

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Am 27.05.24 um 18:28 schrieb Asad Kamal:
Add extra flag definition for ids_flag field to distinguish
between vf/pf/pt modes

v2: Updated kms driver minor version & removed pf check as default is 0

Signed-off-by: Asad Kamal <asad.kamal@xxxxxxx>
Reviewed-by: Lijo Lazar <lijo.lazar@xxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx>

---
  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c |  3 ++-
  drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c |  9 +++++++++
  include/uapi/drm/amdgpu_drm.h           | 10 ++++++++++
  3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 2da76fadf6ea..60d5758939ae 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -116,9 +116,10 @@
   * - 3.55.0 - Add AMDGPU_INFO_GPUVM_FAULT query
   * - 3.56.0 - Update IB start address and size alignment for decode and encode
   * - 3.57.0 - Compute tunneling on GFX10+
+ * - 3.58.0 - Add AMDGPU_IDS_FLAGS_MODE_PF, AMDGPU_IDS_FLAGS_MODE_VF & AMDGPU_IDS_FLAGS_MODE_PT
   */
  #define KMS_DRIVER_MAJOR	3
-#define KMS_DRIVER_MINOR	57
+#define KMS_DRIVER_MINOR	58
  #define KMS_DRIVER_PATCHLEVEL	0
/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 66782be5917b..260cd0ad286d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -869,6 +869,15 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
  		if (adev->gfx.config.ta_cntl2_truncate_coord_mode)
  			dev_info->ids_flags |= AMDGPU_IDS_FLAGS_CONFORMANT_TRUNC_COORD;
+ if (amdgpu_passthrough(adev))
+			dev_info->ids_flags |= (AMDGPU_IDS_FLAGS_MODE_PT <<
+						AMDGPU_IDS_FLAGS_MODE_SHIFT) &
+						AMDGPU_IDS_FLAGS_MODE_MASK;
+		else if (amdgpu_sriov_vf(adev))
+			dev_info->ids_flags |= (AMDGPU_IDS_FLAGS_MODE_VF <<
+						AMDGPU_IDS_FLAGS_MODE_SHIFT) &
+						AMDGPU_IDS_FLAGS_MODE_MASK;
+
  		vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE;
  		vm_size -= AMDGPU_VA_RESERVED_TOP;
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 5b6c0055cfcf..ae3f4e275f20 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -754,6 +754,16 @@ struct drm_amdgpu_cs_chunk_cp_gfx_shadow {
  #define AMDGPU_IDS_FLAGS_TMZ            0x4
  #define AMDGPU_IDS_FLAGS_CONFORMANT_TRUNC_COORD 0x8
+/*
+ *  Query h/w info: Flag identifying VF/PF/PT mode
+ *
+ */
+#define AMDGPU_IDS_FLAGS_MODE_MASK      0x300
+#define AMDGPU_IDS_FLAGS_MODE_SHIFT     0x8
+#define AMDGPU_IDS_FLAGS_MODE_PF        0x0
+#define AMDGPU_IDS_FLAGS_MODE_VF        0x1
+#define AMDGPU_IDS_FLAGS_MODE_PT        0x2
+
  /* indicate if acceleration can be working */
  #define AMDGPU_INFO_ACCEL_WORKING		0x00
  /* get the crtc_id from the mode object id? */




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