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authorChris Wilson <chris@chris-wilson.co.uk>2018-07-10 09:04:24 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2018-07-10 09:53:41 +0100
commitebfa7944d6d951c77dca6911a252917f6cecaab3 (patch)
tree2d6794d15c3ef8d45aa39e94ff94937f12459d18
parent8cff1f4a3ca58ab426f224b4bd6af61c1a9976ab (diff)
drm/i915/selftests: Constrain mock_gtt tests to fit within RAM
Be pessimistic and presume that we actually allocate every page we exercise via the mock_gtt (e.g. for gvt). In which case we have to keep our working set under the available physical memory to prevent oom. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710080424.7821-1-chris@chris-wilson.co.uk
-rw-r--r--drivers/gpu/drm/i915/selftests/i915_gem_gtt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 600a3bcbd3d6..8e2e269db97e 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1244,6 +1244,7 @@ static int exercise_mock(struct drm_i915_private *i915,
u64 hole_start, u64 hole_end,
unsigned long end_time))
{
+ const u64 limit = totalram_pages << PAGE_SHIFT;
struct i915_gem_context *ctx;
struct i915_hw_ppgtt *ppgtt;
IGT_TIMEOUT(end_time);
@@ -1256,7 +1257,7 @@ static int exercise_mock(struct drm_i915_private *i915,
ppgtt = ctx->ppgtt;
GEM_BUG_ON(!ppgtt);
- err = func(i915, &ppgtt->vm, 0, ppgtt->vm.total, end_time);
+ err = func(i915, &ppgtt->vm, 0, min(ppgtt->vm.total, limit), end_time);
mock_context_close(ctx);
return err;