From: Michel Dänzer Date: Tue, 16 Jun 2015 08:28:16 +0000 (+0900) Subject: drm/radeon: Add RADEON_INFO_VA_UNMAP_WORKING query X-Git-Tag: v3.18.18~185 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c46ed6527b0fbebabb494a648e1d8ec0dee8e0d8;p=thirdparty%2Fkernel%2Fstable.git drm/radeon: Add RADEON_INFO_VA_UNMAP_WORKING query [ Upstream commit 3bc980bf19bb62007e923691fa2869ba113be895 ] This tells userspace that it's safe to use the RADEON_VA_UNMAP operation of the DRM_RADEON_GEM_VA ioctl. Cc: stable@vger.kernel.org (NOTE: Backporting this commit requires at least backports of commits 26d4d129b6042197b4cbc8341c0618f99231af2f, 48afbd70ac7b6aa62e8d452091023941d8085f8a and c29c0876ec05d51a93508a39b90b92c29ba6423d as well, otherwise using RADEON_VA_UNMAP runs into trouble) Signed-off-by: Michel Dänzer Signed-off-by: Christian König Signed-off-by: Sasha Levin --- diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 8ec652722e4f5..46bcd5d38a1e9 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -540,6 +540,9 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file else *value = 1; break; + case RADEON_INFO_VA_UNMAP_WORKING: + *value = true; + break; default: DRM_DEBUG_KMS("Invalid request %d\n", info->request); return -EINVAL; diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h index 50d0fb41a3bf3..76d2edea5bd1c 100644 --- a/include/uapi/drm/radeon_drm.h +++ b/include/uapi/drm/radeon_drm.h @@ -1034,6 +1034,7 @@ struct drm_radeon_cs { #define RADEON_INFO_VRAM_USAGE 0x1e #define RADEON_INFO_GTT_USAGE 0x1f #define RADEON_INFO_ACTIVE_CU_COUNT 0x20 +#define RADEON_INFO_VA_UNMAP_WORKING 0x25 struct drm_radeon_info { uint32_t request;