ggtt offset for hw_tail is not required for the calculations, so drop
it.

Signed-off-by: Umesh Nerlige Ramappa <[email protected]>
---
 drivers/gpu/drm/i915/i915_perf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 29124dcba8e2..beb1269422ca 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -565,7 +565,7 @@ static bool oa_buffer_check_unlocked(struct 
i915_perf_stream *stream)
        partial_report_size %= report_size;
 
        /* Subtract partial amount off the tail */
-       hw_tail = gtt_offset + OA_TAKEN(hw_tail, partial_report_size);
+       hw_tail = OA_TAKEN(hw_tail, partial_report_size);
 
 
        /* NB: The head we observe here might effectively be a little
@@ -575,7 +575,6 @@ static bool oa_buffer_check_unlocked(struct 
i915_perf_stream *stream)
        head = stream->oa_buffer.head - gtt_offset;
        aged_tail = stream->oa_buffer.tail - gtt_offset;
 
-       hw_tail -= gtt_offset;
        tail = hw_tail;
 
                /* Walk the stream backward until we find a report with report
-- 
2.36.1

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