[Intel-gfx] [PATCH v4 6/8] drm/i915: allocate context from LMEM

Matthew Auld matthew.auld at intel.com
Wed Jan 27 12:48:07 UTC 2021


Prefer allocating the context from LMEM on dgfx.

Based on a patch from Michel Thierry.

v2: flatten the chain

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_lrc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 33b529dcb05f..8508b8d701c1 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -3,6 +3,8 @@
  * Copyright © 2014 Intel Corporation
  */
 
+#include "gem/i915_gem_lmem.h"
+
 #include "gen8_engine_cs.h"
 #include "i915_drv.h"
 #include "i915_perf.h"
@@ -808,7 +810,9 @@ __lrc_alloc_state(struct intel_context *ce, struct intel_engine_cs *engine)
 		context_size += PAGE_SIZE;
 	}
 
-	obj = i915_gem_object_create_shmem(engine->i915, context_size);
+	obj = i915_gem_object_create_lmem(engine->i915, context_size, 0);
+	if (IS_ERR(obj))
+		obj = i915_gem_object_create_shmem(engine->i915, context_size);
 	if (IS_ERR(obj))
 		return ERR_CAST(obj);
 
-- 
2.26.2



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