1 files changed, 17 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index eaaedba04675..35d931881b4b 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -513,6 +513,22 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
                 value_size = sizeof(uint64_t);
                 value64 = atomic64_read(&rdev->gtt_usage);
                 break;
+        case RADEON_INFO_ACTIVE_CU_COUNT:
+                if (rdev->family >= CHIP_BONAIRE)
+                        *value = rdev->config.cik.active_cus;
+                else if (rdev->family >= CHIP_TAHITI)
+                        *value = rdev->config.si.active_cus;
+                else if (rdev->family >= CHIP_CAYMAN)
+                        *value = rdev->config.cayman.active_simds;
+                else if (rdev->family >= CHIP_CEDAR)
+                        *value = rdev->config.evergreen.active_simds;
+                else if (rdev->family >= CHIP_RV770)
+                        *value = rdev->config.rv770.active_simds;
+                else if (rdev->family >= CHIP_R600)
+                        *value = rdev->config.r600.active_simds;
+                else
+                        *value = 1;
+                break;
         default:
                 DRM_DEBUG_KMS("Invalid request %d\n", info->request);
                 return -EINVAL;
@@ -859,4 +875,4 @@ const struct drm_ioctl_desc radeon_ioctls_kms[] = {
         DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
         DRM_IOCTL_DEF_DRV(RADEON_GEM_OP, radeon_gem_op_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 };
-int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);
+int radeon_max_kms_ioctl = ARRAY_SIZE(radeon_ioctls_kms);