[PATCH 6/6] drm/xe/stolen: ignore first page for FBC

[Matthew Auld]

Seems like we can potentially hit underruns if the CFB offset is within
the first page of stolen. Just like i915 skip the first page.

BSpec: 50214
Reported-by: Matt Roper <matthew.d.ro...@intel.com>
Signed-off-by: Matthew Auld <matthew.a...@intel.com>
---
 drivers/gpu/drm/xe/compat-i915-headers/i915_gem_stolen.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_gem_stolen.h 
b/drivers/gpu/drm/xe/compat-i915-headers/i915_gem_stolen.h
index bd233007c1b7..003474cfdf31 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/i915_gem_stolen.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_gem_stolen.h
@@ -19,6 +19,9 @@ static inline int i915_gem_stolen_insert_node_in_range(struct 
xe_device *xe,
        int err;
        u32 flags = XE_BO_CREATE_PINNED_BIT | XE_BO_CREATE_STOLEN_BIT;
 
+       if (start < SZ_4K)
+               start = SZ_4K;
+
        if (align)
                size = ALIGN(size, align);
 
-- 
2.43.0