[PATCH v3] drm/i915: Create dumb buffer from LMEM

* [PATCH v3] drm/i915: Create dumb buffer from LMEM
@ 2019-11-05 11:30 ` Ramalingam C
  0 siblings, 0 replies; 12+ messages in thread
From: Ramalingam C @ 2019-11-05 11:30 UTC (permalink / raw)
  To: intel-gfx; +Cc: Matthew Auld

When LMEM is supported, dumb buffer preferred to be created from LMEM.

v2:
  Parameters are reshuffled. [Chris]
v3:
  s/region_id/mem_type

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
cc: Matthew Auld <matthew.auld@intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 143a8952b736..db72af98905f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -44,6 +44,7 @@
 #include "gem/i915_gem_clflush.h"
 #include "gem/i915_gem_context.h"
 #include "gem/i915_gem_ioctls.h"
+#include "gem/i915_gem_lmem.h"
 #include "gem/i915_gem_pm.h"
 #include "gt/intel_engine_user.h"
 #include "gt/intel_gt.h"
@@ -175,6 +176,7 @@ i915_gem_phys_pwrite(struct drm_i915_gem_object *obj,
 static int
 i915_gem_create(struct drm_file *file,
 		struct drm_i915_private *dev_priv,
+		enum intel_memory_type mem_type,
 		u64 *size_p,
 		u32 *handle_p)
 {
@@ -188,7 +190,11 @@ i915_gem_create(struct drm_file *file,
 		return -EINVAL;
 
 	/* Allocate the new object */
-	obj = i915_gem_object_create_shmem(dev_priv, size);
+	if (mem_type == INTEL_MEMORY_LOCAL)
+		obj = i915_gem_object_create_lmem(dev_priv, size, 0);
+	else
+		obj = i915_gem_object_create_shmem(dev_priv, size);
+
 	if (IS_ERR(obj))
 		return PTR_ERR(obj);
 
@@ -208,6 +214,7 @@ i915_gem_dumb_create(struct drm_file *file,
 		     struct drm_device *dev,
 		     struct drm_mode_create_dumb *args)
 {
+	enum intel_memory_type mem_type = INTEL_MEMORY_SYSTEM;
 	int cpp = DIV_ROUND_UP(args->bpp, 8);
 	u32 format;
 
@@ -234,7 +241,11 @@ i915_gem_dumb_create(struct drm_file *file,
 		args->pitch = ALIGN(args->pitch, 4096);
 
 	args->size = args->pitch * args->height;
-	return i915_gem_create(file, to_i915(dev),
+
+	if (HAS_LMEM(to_i915(dev)))
+		mem_type = INTEL_MEMORY_LOCAL;
+
+	return i915_gem_create(file, to_i915(dev), mem_type,
 			       &args->size, &args->handle);
 }
 
@@ -253,7 +264,7 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data,
 
 	i915_gem_flush_free_objects(dev_priv);
 
-	return i915_gem_create(file, dev_priv,
+	return i915_gem_create(file, dev_priv, INTEL_MEMORY_SYSTEM,
 			       &args->size, &args->handle);
 }
 
-- 
2.20.1

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