[igt-dev] [PATCH i-g-t v3 03/11] lib/i915/gem_mman: add fixed mode to gem_mmap_offset__cpu

[Matthew Auld]

On discrete we only support the new fixed mode.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit at intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Ramalingam C <ramalingam.c at intel.com>
---
 lib/i915/gem_mman.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/i915/gem_mman.c b/lib/i915/gem_mman.c
index c432bb16..563a7ccf 100644
--- a/lib/i915/gem_mman.c
+++ b/lib/i915/gem_mman.c
@@ -474,8 +474,14 @@ void *gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size, uns
 void *__gem_mmap_offset__cpu(int fd, uint32_t handle, uint64_t offset,
 			     uint64_t size, unsigned prot)
 {
-	return __gem_mmap_offset(fd, handle, offset, size, prot,
+	void *ptr;
+
+	ptr = __gem_mmap_offset(fd, handle, offset, size, prot,
 				 I915_MMAP_OFFSET_WB);
+	if (!ptr)
+		ptr = __gem_mmap_offset__fixed(fd, handle, offset, size, prot);
+
+	return ptr;
 }
 
 /**
-- 
2.26.3