drm/xe: fix xe_mmio_total_vram_size

As also cause issue on PVC, moving back
to what we did before stolen was
introduced

Signed-off-by: Philippe Lecluse <philippe.lecluse@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_mmio.c b/drivers/gpu/drm/xe/xe_mmio.c
index 88d475d..54d2a94 100644 (file)
--- a/drivers/gpu/drm/xe/xe_mmio.c
+++ b/drivers/gpu/drm/xe/xe_mmio.c
@@ -159,12 +159,8 @@ int xe_mmio_total_vram_size(struct xe_device *xe, u64 *vram_size, u64 *usable_si
 
        if (!xe->info.has_flat_ccs)  {
                *vram_size = pci_resource_len(pdev, GEN12_LMEM_BAR);
-               if (usable_size) {
-                       if (xe->info.platform == XE_DG1)
-                               *usable_size = xe_mmio_read64(gt, GEN12_GSMBASE.reg);
-                       else
-                               *usable_size = *vram_size;
-               }
+               if (usable_size)
+                       *usable_size = min(*vram_size, xe_mmio_read64(gt, GEN12_GSMBASE.reg));
                return 0;
        }