[Intel-gfx] [PATCH 21/21] drm/i915: enable platform support for 2M pages

[Matthew Auld]

For gen8+ platforms which support the 48b PPGTT, enable platform level
support for 2M pages. Also enable for mock testing.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_pci.c                  | 6 ++++--
 drivers/gpu/drm/i915/selftests/mock_gem_device.c | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 8d349aec1902..bf467f30c99b 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -376,7 +376,8 @@ static const struct intel_device_info intel_haswell_gt3_info __initconst = {
 #define GEN8_FEATURES \
 	G75_FEATURES, \
 	BDW_COLORS, \
-	GEN_DEFAULT_PAGE_SIZES, \
+	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
+		      I915_GTT_PAGE_SIZE_2M, \
 	.has_logical_ring_contexts = 1, \
 	.has_full_48bit_ppgtt = 1, \
 	.has_64bit_reloc = 1, \
@@ -437,7 +438,8 @@ static const struct intel_device_info intel_cherryview_info __initconst = {
 
 #define GEN9_DEFAULT_PAGE_SIZES \
 	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
-		      I915_GTT_PAGE_SIZE_64K
+		      I915_GTT_PAGE_SIZE_64K | \
+		      I915_GTT_PAGE_SIZE_2M
 
 #define GEN9_FEATURES \
 	GEN8_FEATURES, \
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 7a9735dac912..04eb9362f4f8 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -176,7 +176,8 @@ struct drm_i915_private *mock_gem_device(void)
 
 	mkwrite_device_info(i915)->page_sizes =
 		I915_GTT_PAGE_SIZE_4K |
-		I915_GTT_PAGE_SIZE_64K;
+		I915_GTT_PAGE_SIZE_64K |
+		I915_GTT_PAGE_SIZE_2M;
 
 	spin_lock_init(&i915->mm.object_stat_lock);
 	mock_uncore_init(i915);
-- 
2.13.5