[PATCH 27/28] drm/i915/gem: hide new uAPI behind CONFIG_BROKEN

Matthew Auld matthew.auld at intel.com
Tue Apr 20 15:46:40 UTC 2021


Treat it the same as the fake local-memory stuff, where it is disabled
for normal kernels, in case some random UMD is tempted to use this. Once
we have all the other bits and pieces in place we can turn this on for
real.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin at linux.intel.com>
Cc: Jon Bloomfield <jon.bloomfield at intel.com>
Cc: Jordan Justen <jordan.l.justen at intel.com>
Cc: Daniel Vetter <daniel.vetter at intel.com>
Cc: Kenneth Graunke <kenneth at whitecape.org>
Cc: Jason Ekstrand <jason at jlekstrand.net>
Cc: Dave Airlie <airlied at gmail.com>
Cc: dri-devel at lists.freedesktop.org
Cc: mesa-dev at lists.freedesktop.org
---
 drivers/gpu/drm/i915/gem/i915_gem_create.c | 3 +++
 drivers/gpu/drm/i915/i915_query.c          | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c
index 338f3883e238..e8ea1d034d85 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_create.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c
@@ -235,6 +235,9 @@ static int set_placements(struct drm_i915_gem_create_ext_memory_regions *args,
 	u32 mask;
 	int i, ret = 0;
 
+	if (!IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM))
+		return -ENODEV;
+
 	if (args->pad) {
 		drm_dbg(&i915->drm, "pad should be zero\n");
 		ret = -EINVAL;
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c
index 0b4cb2e1a15c..561684ded4a0 100644
--- a/drivers/gpu/drm/i915/i915_query.c
+++ b/drivers/gpu/drm/i915/i915_query.c
@@ -432,6 +432,9 @@ static int query_memregion_info(struct drm_i915_private *i915,
 	u32 total_length;
 	int ret, id;
 
+	if (!IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM))
+		return -ENODEV;
+
 	if (query_item->flags != 0)
 		return -EINVAL;
 
-- 
2.26.3



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