drm/vmwgfx: Support for SVGA3dSurfaceAllFlags in vmwgfx

Since svga device introduced new 64bit SVGA3dSurfaceAllFlags, vmwgfx
now stores the surface flags internally as SVGA3dSurfaceAllFlags.
For legacy surface define commands, only lower 32-bit is used.

Signed-off-by: Deepak Rawat <drawat@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>

2 files changed, 16 insertions, 9 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 06cce72b7b9e..7e5c93083036 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -166,7 +166,7 @@ struct vmw_surface_offset;
 
 struct vmw_surface {
         struct vmw_resource res;
-        uint32_t flags;
+        SVGA3dSurfaceAllFlags flags;
         uint32_t format;
         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
         struct drm_vmw_size base_size;
@@ -1080,7 +1080,7 @@ extern int vmw_surface_validate(struct vmw_private *dev_priv,
                                 struct vmw_surface *srf);
 int vmw_surface_gb_priv_define(struct drm_device *dev,
                                uint32_t user_accounting_size,
-                               uint32_t svga3d_flags,
+                               SVGA3dSurfaceAllFlags svga3d_flags,
                                SVGA3dSurfaceFormat format,
                                bool for_scanout,
                                uint32_t num_mip_levels,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index 2abf9a895605..a5f93f62c7fa 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -224,7 +224,12 @@ static void vmw_surface_define_encode(const struct vmw_surface *srf,
         cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
         cmd->header.size = cmd_len;
         cmd->body.sid = srf->res.id;
-        cmd->body.surfaceFlags = srf->flags;
+        /*
+         * Downcast of surfaceFlags, was upcasted when received from user-space,
+         * since driver internally stores as 64 bit.
+         * For legacy surface define only 32 bit flag is supported.
+         */
+        cmd->body.surfaceFlags = (SVGA3dSurface1Flags)srf->flags;
         cmd->body.format = srf->format;
         for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
                 cmd->body.face[i].numMipLevels = srf->mip_levels[i];
@@ -760,7 +765,8 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
         srf = &user_srf->srf;
         res = &srf->res;
 
-        srf->flags = req->flags;
+        /* Driver internally stores as 64-bit flags */
+        srf->flags = (SVGA3dSurfaceAllFlags)req->flags;
         srf->format = req->format;
         srf->scanout = req->scanout;
 
@@ -992,7 +998,8 @@ int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
         user_srf = container_of(base, struct vmw_user_surface, prime.base);
         srf = &user_srf->srf;
 
-        rep->flags = srf->flags;
+        /* Downcast of flags when sending back to user space */
+        rep->flags = (uint32_t)srf->flags;
         rep->format = srf->format;
         memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels));
         user_sizes = (struct drm_vmw_size __user *)(unsigned long)
@@ -1082,7 +1089,7 @@ static int vmw_gb_surface_create(struct vmw_resource *res)
                 cmd3->header.id = cmd_id;
                 cmd3->header.size = cmd_len;
                 cmd3->body.sid = srf->res.id;
-                cmd3->body.surfaceFlags = (SVGA3dSurfaceAllFlags)srf->flags;
+                cmd3->body.surfaceFlags = srf->flags;
                 cmd3->body.format = srf->format;
                 cmd3->body.numMipLevels = srf->mip_levels[0];
                 cmd3->body.multisampleCount = srf->multisample_count;
@@ -1320,7 +1327,7 @@ int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
         /* Define a surface based on the parameters. */
         ret = vmw_surface_gb_priv_define(dev,
                         size,
-                        req->svga3d_flags,
+                        (SVGA3dSurfaceAllFlags)req->svga3d_flags,
                         req->format,
                         req->drm_surface_flags & drm_vmw_surface_flag_scanout,
                         req->mip_levels,
@@ -1451,7 +1458,7 @@ int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
                 goto out_bad_resource;
         }
 
-        rep->creq.svga3d_flags = srf->flags;
+        rep->creq.svga3d_flags = (uint32_t)srf->flags;
         rep->creq.format = srf->format;
         rep->creq.mip_levels = srf->mip_levels[0];
         rep->creq.drm_surface_flags = 0;
@@ -1495,7 +1502,7 @@ out_bad_resource:
  */
 int vmw_surface_gb_priv_define(struct drm_device *dev,
                                uint32_t user_accounting_size,
-                               uint32_t svga3d_flags,
+                               SVGA3dSurfaceAllFlags svga3d_flags,
                                SVGA3dSurfaceFormat format,
                                bool for_scanout,
                                uint32_t num_mip_levels,