Use 48b addresses if hw supports it (i915.enable_ppgtt=3).
Note, aliasing PPGTT remains 32b only.
Signed-off-by: Michel Thierry <michel.thie...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 5 ++---
drivers/gpu/drm/i915/i915_params.c | 2 +-
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 1435701..446bd98 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -108,8 +108,7 @@ static int sanitize_enable_ppgtt(struct drm_device *dev,
int enable_ppgtt)
has_aliasing_ppgtt = INTEL_INFO(dev)->gen >= 6;
has_full_ppgtt = INTEL_INFO(dev)->gen >= 7;
- has_full_64bit_ppgtt = (IS_BROADWELL(dev) ||
- INTEL_INFO(dev)->gen >= 9) && false; /* FIXME:
64b */
+ has_full_64bit_ppgtt = IS_BROADWELL(dev) || INTEL_INFO(dev)->gen >= 9;
if (intel_vgpu_active(dev))
has_full_ppgtt = false; /* emulation is too hard */
@@ -147,7 +146,7 @@ static int sanitize_enable_ppgtt(struct drm_device *dev,
int enable_ppgtt)
}
if (INTEL_INFO(dev)->gen >= 8 && i915.enable_execlists)
- return 2;
+ return has_full_64bit_ppgtt ? 3 : 2;
else
return has_aliasing_ppgtt ? 1 : 0;
}
diff --git a/drivers/gpu/drm/i915/i915_params.c
b/drivers/gpu/drm/i915/i915_params.c
index 7983fe4..ccf3eb2 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -110,7 +110,7 @@ MODULE_PARM_DESC(enable_hangcheck,
module_param_named_unsafe(enable_ppgtt, i915.enable_ppgtt, int, 0400);
MODULE_PARM_DESC(enable_ppgtt,
"Override PPGTT usage. "
- "(-1=auto [default], 0=disabled, 1=aliasing, 2=full)");
+ "(-1=auto [default], 0=disabled, 1=aliasing, 2=full, 3=full_64b)");
module_param_named(enable_execlists, i915.enable_execlists, int, 0400);
MODULE_PARM_DESC(enable_execlists,
--
2.4.5
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