With the offset length being taken care of in ("drm/i915/gtt: Allow >=
4GB offsets in X86_32"), the code should be finally safe in 32-bit
kernels.
This reverts commit 501fd70fcaebc911b6b96a7b331e6960e5af67e7
Author: Michel Thierry <michel.thierry@xxxxxxxxx>
Date: Fri May 29 14:15:05 2015 +0100
drm/i915: limit PPGTT size to 2GB in 32-bit platforms
Signed-off-by: Michel Thierry <michel.thierry@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index dee3b39..451913a 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1495,14 +1495,6 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
goto free_scratch;
ppgtt->base.total = 1ULL << 32;
- if (IS_ENABLED(CONFIG_X86_32))
- /* While we have a proliferation of size_t variables
- * we cannot represent the full ppgtt size on 32bit,
- * so limit it to the same size as the GGTT (currently
- * 2GiB).
- */
- ppgtt->base.total = to_i915(ppgtt->base.dev)->gtt.base.total;
-
ppgtt->switch_mm = gen8_legacy_mm_switch;
trace_i915_page_directory_pointer_entry_alloc(&ppgtt->base,
0, 0,
--
2.5.0
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