From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Hellstrom Subject: [PATCH] drm/vmwgfx: Work around drm removal of control nodes Date: Tue, 21 Feb 2017 17:42:27 +0700 Message-ID: <20170221104227.2854-1-thellstrom@vmware.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: stable-owner@vger.kernel.org To: syeh@vmware.com, airlied@gmail.com Cc: daniel.vetter@intel.com, dri-devel@lists.freedesktop.org, Thomas Hellstrom , stable@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org vmware tools has a daemon that gets layout information from the GUI and forwards it to DRM so that the modesetting code can set preferred connector locations and modes. This daemon was using control nodes but since control nodes were just removed, make it possible for the daemon to use render- or primary nodes instead. This is a bit ugly but will allow drm to proceed with removal of the mostly unused control-node code and allow vmware to proceed with fixing up automatic layout settings for gnome-shell/wayland. We bump minor to inform user-space about the api change. Cc: Signed-off-by: Thomas Hellstrom --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 11 ++++++++++- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 4 ++-- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 541a588..d08f269 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -199,9 +199,14 @@ static const struct drm_ioctl_desc vmw_ioctls[] = { VMW_IOCTL_DEF(VMW_PRESENT_READBACK, vmw_present_readback_ioctl, DRM_MASTER | DRM_AUTH), + /* + * The permissions of the below ioctl are overridden in + * vmw_generic_ioctl(). We require either + * DRM_MASTER or capable(CAP_SYS_ADMIN). + */ VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT, vmw_kms_update_layout_ioctl, - DRM_MASTER | DRM_CONTROL_ALLOW), + DRM_RENDER_ALLOW), VMW_IOCTL_DEF(VMW_CREATE_SHADER, vmw_shader_define_ioctl, DRM_AUTH | DRM_RENDER_ALLOW), @@ -1123,6 +1128,10 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, return (long) vmw_execbuf_ioctl(dev, arg, file_priv, _IOC_SIZE(cmd)); + } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) { + if (!drm_is_current_master(file_priv) && + !capable(CAP_SYS_ADMIN)) + return -EACCES; } if (unlikely(ioctl->cmd != cmd)) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 1e59a48..59ff419 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -41,9 +41,9 @@ #include #include "vmwgfx_fence.h" -#define VMWGFX_DRIVER_DATE "20160210" +#define VMWGFX_DRIVER_DATE "20170221" #define VMWGFX_DRIVER_MAJOR 2 -#define VMWGFX_DRIVER_MINOR 11 +#define VMWGFX_DRIVER_MINOR 12 #define VMWGFX_DRIVER_PATCHLEVEL 0 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) -- 2.9.3 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-sn1nam02on0086.outbound.protection.outlook.com ([104.47.36.86]:32096 "EHLO NAM02-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752038AbdBUKnM (ORCPT ); Tue, 21 Feb 2017 05:43:12 -0500 From: Thomas Hellstrom To: , CC: , , Thomas Hellstrom , Subject: [PATCH] drm/vmwgfx: Work around drm removal of control nodes Date: Tue, 21 Feb 2017 17:42:27 +0700 Message-ID: <20170221104227.2854-1-thellstrom@vmware.com> MIME-Version: 1.0 Content-Type: text/plain Sender: stable-owner@vger.kernel.org List-ID: vmware tools has a daemon that gets layout information from the GUI and forwards it to DRM so that the modesetting code can set preferred connector locations and modes. This daemon was using control nodes but since control nodes were just removed, make it possible for the daemon to use render- or primary nodes instead. This is a bit ugly but will allow drm to proceed with removal of the mostly unused control-node code and allow vmware to proceed with fixing up automatic layout settings for gnome-shell/wayland. We bump minor to inform user-space about the api change. Cc: Signed-off-by: Thomas Hellstrom --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 11 ++++++++++- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 4 ++-- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 541a588..d08f269 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -199,9 +199,14 @@ static const struct drm_ioctl_desc vmw_ioctls[] = { VMW_IOCTL_DEF(VMW_PRESENT_READBACK, vmw_present_readback_ioctl, DRM_MASTER | DRM_AUTH), + /* + * The permissions of the below ioctl are overridden in + * vmw_generic_ioctl(). We require either + * DRM_MASTER or capable(CAP_SYS_ADMIN). + */ VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT, vmw_kms_update_layout_ioctl, - DRM_MASTER | DRM_CONTROL_ALLOW), + DRM_RENDER_ALLOW), VMW_IOCTL_DEF(VMW_CREATE_SHADER, vmw_shader_define_ioctl, DRM_AUTH | DRM_RENDER_ALLOW), @@ -1123,6 +1128,10 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, return (long) vmw_execbuf_ioctl(dev, arg, file_priv, _IOC_SIZE(cmd)); + } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) { + if (!drm_is_current_master(file_priv) && + !capable(CAP_SYS_ADMIN)) + return -EACCES; } if (unlikely(ioctl->cmd != cmd)) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 1e59a48..59ff419 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -41,9 +41,9 @@ #include #include "vmwgfx_fence.h" -#define VMWGFX_DRIVER_DATE "20160210" +#define VMWGFX_DRIVER_DATE "20170221" #define VMWGFX_DRIVER_MAJOR 2 -#define VMWGFX_DRIVER_MINOR 11 +#define VMWGFX_DRIVER_MINOR 12 #define VMWGFX_DRIVER_PATCHLEVEL 0 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) -- 2.9.3