gpu: call CreateScreenResources for GPU screens

I didn't think we needed this before, but after doing some more
work with reverse optimus it seems like it should be called.

Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit f2fd8ec3725a61abbc831f0a9ec28fa2b7020c47)

2 files changed, 11 insertions, 0 deletions

diff --git a/dix/main.c b/dix/main.c
index fb935c969..e558d702b 100644
--- a/dix/main.c
+++ b/dix/main.c
@@ -211,6 +211,9 @@ main(int argc, char *argv[], char *envp[])
             ScreenPtr pScreen = screenInfo.gpuscreens[i];
             if (!CreateScratchPixmapsForScreen(pScreen))
                 FatalError("failed to create scratch pixmaps");
+            if (pScreen->CreateScreenResources &&
+                !(*pScreen->CreateScreenResources) (pScreen))
+                FatalError("failed to create screen resources");
         }
 
         for (i = 0; i < screenInfo.numScreens; i++) {
diff --git a/hw/xfree86/common/xf86platformBus.c b/hw/xfree86/common/xf86platformBus.c
index 9034dad5e..db831a883 100644
--- a/hw/xfree86/common/xf86platformBus.c
+++ b/hw/xfree86/common/xf86platformBus.c
@@ -454,6 +454,14 @@ xf86platformAddDevice(int index)
 
    CreateScratchPixmapsForScreen(xf86GPUScreens[i]->pScreen);
 
+   if (xf86GPUScreens[i]->pScreen->CreateScreenResources &&
+       !(*xf86GPUScreens[i]->pScreen->CreateScreenResources) (xf86GPUScreens[i]->pScreen)) {
+       RemoveGPUScreen(xf86GPUScreens[i]->pScreen);
+       xf86DeleteScreen(xf86GPUScreens[i]);
+       xf86UnclaimPlatformSlot(&xf86_platform_devices[index], NULL);
+       xf86NumGPUScreens = old_screens;
+       return -1;
+   }
    /* attach unbound to 0 protocol screen */
    AttachUnboundGPU(xf86Screens[0]->pScreen, xf86GPUScreens[i]->pScreen);