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drm/i915/selftests: Use igt_random_offset() 

Switch igt_vm_isolation() to using igt_random_offset().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200312154708.1720-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-03-12 15:47:08 +00:00
parent 7dc8f11437
commit c46c320c02
1 changed files with 4 additions and 5 deletions
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9
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
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@ -1809,7 +1809,6 @@ static int igt_vm_isolation(void *arg)
vm_total = ctx_vm(ctx_a)->total;
GEM_BUG_ON(ctx_vm(ctx_b)->total != vm_total);
vm_total -= I915_GTT_PAGE_SIZE;
count = 0;
num_engines = 0;
@ -1828,10 +1827,10 @@ static int igt_vm_isolation(void *arg)
u32 value = 0xc5c5c5c5;
u64 offset;
div64_u64_rem(i915_prandom_u64_state(&prng),
vm_total, &offset);
offset = round_down(offset, alignof_dword);
offset += I915_GTT_PAGE_SIZE;
/* Leave enough space at offset 0 for the batch */
offset = igt_random_offset(&prng,
I915_GTT_PAGE_SIZE, vm_total,
sizeof(u32), alignof_dword);
err = write_to_scratch(ctx_a, engine,
offset, 0xdeadbeef);