[igt-dev] [PATCH i-g-t v2 04/11] lib/i915/gem_mman: add fixed mode to gem_mmap__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 337d28fb..6f5e6d72 100644
--- a/lib/i915/gem_mman.c
+++ b/lib/i915/gem_mman.c
@@ -434,7 +434,13 @@ void *gem_mmap__device_coherent(int fd, uint32_t handle, uint64_t offset,
  */
 void *__gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot)
 {
-	return __gem_mmap(fd, handle, offset, size, prot, 0);
+	void *ptr;
+
+	ptr = __gem_mmap(fd, handle, offset, size, prot, 0);
+	if (!ptr)
+		ptr = __gem_mmap_offset__fixed(fd, handle, offset, size, prot);
+
+	return ptr;
 }
 
 /**
-- 
2.26.3