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| author | Roland Scheidegger <sroland@vmware.com> | 2019-11-21 17:44:56 +0100 |
|---|---|---|
| committer | Thomas Hellstrom <thellstrom@vmware.com> | 2020-01-15 11:54:16 +0100 |
| commit | cb92a3235956442c5ff211291865e219dc4cf4a0 (patch) | |
| tree | 4bff7a1f95f87be485bb7d045781486ad332677e /drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | |
| parent | 40efb09a7f53125719e49864da008495e39aaa1e (diff) | |
| download | linux-cb92a3235956442c5ff211291865e219dc4cf4a0.tar.bz2 | |
drm/vmwgfx: add ioctl for messaging from/to guest userspace to/from host
Up to now, guest userspace does logging directly to host using essentially
the same rather complex port assembly stuff as the kernel.
We'd rather use the same mechanism than duplicate it (it may also change in
the future), hence add a new ioctl for relaying guest/host messaging
(logging is just one application of it).
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index bc3d85174ca0..827458f49112 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -150,6 +150,9 @@ #define DRM_IOCTL_VMW_GB_SURFACE_REF_EXT \ DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF_EXT, \ union drm_vmw_gb_surface_reference_ext_arg) +#define DRM_IOCTL_VMW_MSG \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MSG, \ + struct drm_vmw_msg_arg) /** * The core DRM version of this macro doesn't account for @@ -243,6 +246,9 @@ static const struct drm_ioctl_desc vmw_ioctls[] = { VMW_IOCTL_DEF(VMW_GB_SURFACE_REF_EXT, vmw_gb_surface_reference_ext_ioctl, DRM_RENDER_ALLOW), + VMW_IOCTL_DEF(VMW_MSG, + vmw_msg_ioctl, + DRM_RENDER_ALLOW), }; static const struct pci_device_id vmw_pci_id_list[] = { |