[PATCH] drm/amdgpu: add AMDGPU_INFO_NUM_EVICTIONS

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

For profiling.

Signed-off-by: Marek Olšák <marek.olsak at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 3 +++
 include/uapi/drm/amdgpu_drm.h           | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 2d7072a..a75d45a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -46,20 +46,21 @@
 
 #include "amdgpu_amdkfd.h"
 
 /*
  * KMS wrapper.
  * - 3.0.0 - initial driver
  * - 3.1.0 - allow reading more status registers (GRBM, SRBM, SDMA, CP)
  * - 3.2.0 - GFX8: Uses EOP_TC_WB_ACTION_EN, so UMDs don't have to do the same
  *           at the end of IBs.
  * - 3.3.0 - Add VM support for UVD on supported hardware.
+ * - 3.4.0 - Add AMDGPU_INFO_NUM_EVICTIONS.
  */
 #define KMS_DRIVER_MAJOR	3
 #define KMS_DRIVER_MINOR	3
 #define KMS_DRIVER_PATCHLEVEL	0
 
 int amdgpu_vram_limit = 0;
 int amdgpu_gart_size = -1; /* auto */
 int amdgpu_max_bo_reloc_rate = -1; /* auto */
 int amdgpu_benchmarking = 0;
 int amdgpu_testing = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 0fb5488..f0c01da 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -360,20 +360,23 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 		ret = amdgpu_firmware_info(&fw_info, &info->query_fw, adev);
 		if (ret)
 			return ret;
 
 		return copy_to_user(out, &fw_info,
 				    min((size_t)size, sizeof(fw_info))) ? -EFAULT : 0;
 	}
 	case AMDGPU_INFO_NUM_BYTES_MOVED:
 		ui64 = atomic64_read(&adev->num_bytes_moved);
 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
+	case AMDGPU_INFO_NUM_EVICTIONS:
+		ui64 = atomic64_read(&adev->num_evictions);
+		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
 	case AMDGPU_INFO_VRAM_USAGE:
 		ui64 = atomic64_read(&adev->vram_usage);
 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
 	case AMDGPU_INFO_VIS_VRAM_USAGE:
 		ui64 = atomic64_read(&adev->vram_vis_usage);
 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
 	case AMDGPU_INFO_GTT_USAGE:
 		ui64 = atomic64_read(&adev->gtt_usage);
 		return copy_to_user(out, &ui64, min(size, 8u)) ? -EFAULT : 0;
 	case AMDGPU_INFO_GDS_CONFIG: {
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 8df3816..72eb21a 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -474,20 +474,22 @@ struct drm_amdgpu_cs_chunk_data {
 /* Information about GDS, etc. resource configuration */
 #define AMDGPU_INFO_GDS_CONFIG			0x13
 /* Query information about VRAM and GTT domains */
 #define AMDGPU_INFO_VRAM_GTT			0x14
 /* Query information about register in MMR address space*/
 #define AMDGPU_INFO_READ_MMR_REG		0x15
 /* Query information about device: rev id, family, etc. */
 #define AMDGPU_INFO_DEV_INFO			0x16
 /* visible vram usage */
 #define AMDGPU_INFO_VIS_VRAM_USAGE		0x17
+/* number of TTM buffer evictions */
+#define AMDGPU_INFO_NUM_EVICTIONS		0x18
 
 #define AMDGPU_INFO_MMR_SE_INDEX_SHIFT	0
 #define AMDGPU_INFO_MMR_SE_INDEX_MASK	0xff
 #define AMDGPU_INFO_MMR_SH_INDEX_SHIFT	8
 #define AMDGPU_INFO_MMR_SH_INDEX_MASK	0xff
 
 struct drm_amdgpu_query_fw {
 	/** AMDGPU_INFO_FW_* */
 	__u32 fw_type;
 	/**
-- 
2.7.4