From 0e0ab8a071c86b4de1c257c350bfa0e4b7e478c2 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Thu, 28 Mar 2013 11:38:57 -0700 Subject: [PATCH] i965/fs: Use measured Gen7 instruction timings on Gen6. x before + after +------------------------------------------------------------------------------+ | x x + | | xx ++ x + | | xx ++ + xx ++ | |x xxx x+++++ + xxx x*x+*+++ + x +| | |_____|____________A______A____M____M_|_______| | +------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 23 8083.78 8287.83 8205.55 8162.7461 68.307951 + 23 8107.56 8358.74 8224.33 8186.1765 71.506301 No difference proven at 95.0% confidence Reviewed-by: Eric Anholt --- src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp b/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp index f0ef4701e31..90f1a16bcde 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp @@ -67,7 +67,10 @@ public: this->parent_count = 0; this->unblocked_time = 0; - if (intel->gen >= 7) + /* We can't measure Gen6 timings directly but expect them to be much + * closer to Gen7 than Gen4. + */ + if (intel->gen >= 6) set_latency_gen7(intel->is_haswell); else set_latency_gen4(); -- 2.30.2