e3e704c7e7
The enum values can be used directly as indices into arrays, simplifying
the code.
This significantly cuts down the number of CPU cycles spent inside
* Addr::V2::Gfx9Lib::HwlComputeDccAddrFromCoord:
+------------------------------------------------------------------------+
|+ +++ + x x xx|
| |_____AM____| |_A__||
+------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 5 14.89 15.44 15.14 15.156 0.24704251
+ 5 8.26 9.96 9.37 9.282 0.6262747
Difference at 95.0% confidence
-5.874 +/- 0.694294
-38.7569% +/- 4.58098%
(Student's t, pooled s = 0.476051)
* Addr::V2::CoordEq::solve:
+------------------------------------------------------------------------+
| + x |
| + + + + x x x x|
||__MA____| |______A__M____||
+------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 5 8.11 9.59 9.21 9.02 0.55605755
+ 5 4.28 5.05 4.48 4.564 0.32867917
Difference at 95.0% confidence
-4.456 +/- 0.666135
-49.4013% +/- 7.38509%
(Student's t, pooled s = 0.456744)
(The measured numbers are the percentages of samples inside the
respective function and its calles for
`perf record --call-graph=fp kitty -e false`, measured on a Lenovo
Thinkpad E595 (Picasso))
v2:
* Add missed 'coords[dim] |= bit << ord;' (Pierre-Eric Pelloux-Prayer)
* Put 'ADDR_ASSERT(dim < DIM_S);' where the code previous had
'ADDR_ASSERT_ALWAYS()' for the s/m dimensions.
* Use 1u for BitsValid (since it's 32-bit unsigned values).
* Use parens in 'BitsValid[dim] & (1u << ord)' for clarity.
Acked-by: Marek Olšák <marek.olsak@amd.com> # v1
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4523>
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