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authorStuart Summers <stuart.summers@intel.com>2021-12-08 19:46:10 +0530
committerRamalingam C <ramalingam.c@intel.com>2021-12-09 22:09:27 +0530
commitc83125bb2199bc304badc98fcc7c79704053aeb4 (patch)
treeb03f91b7fbc1d55a3227b0efcc38292cba00bd3b /drivers/gpu/drm/i915/i915_drv.h
parentdrm/i915/gt: Use hw_engine_masks as reset_domains (diff)
downloadlinux-dev-c83125bb2199bc304badc98fcc7c79704053aeb4.tar.xz
linux-dev-c83125bb2199bc304badc98fcc7c79704053aeb4.zip
drm/i915: Add has_64k_pages flag
Add a new platform flag, has_64k_pages, to mark the requirement of 64K GTT page sizes or larger for device local memory access. Also implies that we require or at least support the compact PT layout for the ppGTT when using 64K GTT pages. v2: More explanation for the flag [Thomas] Signed-off-by: Stuart Summers <stuart.summers@intel.com> Signed-off-by: Ramalingam C <ramalingam.c@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211208141613.7251-2-ramalingam.c@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8198d13347f6..e02becc680ec 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1717,6 +1717,14 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
#define HAS_MSLICES(dev_priv) \
(INTEL_INFO(dev_priv)->has_mslices)
+/*
+ * Set this flag, when platform requires 64K GTT page sizes or larger for
+ * device local memory access. Also this flag implies that we require or
+ * at least support the compact PT layout for the ppGTT when using the 64K
+ * GTT pages.
+ */
+#define HAS_64K_PAGES(dev_priv) (INTEL_INFO(dev_priv)->has_64k_pages)
+
#define HAS_IPC(dev_priv) (INTEL_INFO(dev_priv)->display.has_ipc)
#define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))