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* util/ra: Get rid of tabsJason Ekstrand2019-05-141-4/+4
| | | | Reviewed-by: Eric Anholt <[email protected]>
* ra: Add a callback for selecting a register from what's available.Eric Anholt2017-07-251-0/+6
| | | | | | | | | | | | | | | | VC4 has had a tension, similar to pre-Sandybridge Intel, where we want to use low-numbered registers (more parallelism on Intel, fewer delay slots on vc4), but in order to give instruction scheduling the most freedom to avoid delays we want to round-robin between registers of the same cost. Our two heuristics so far have chosen one end or the other of that tradeoff. The callback, instead, hands the driver the set of registers that are available, and the driver gets to make its own choice. This will be used in vc4 to round-robin between registers of the same cost, and might be used in the future for improving bank selection. Reviewed-by: Nicolai Hähnle <[email protected]>
* util: consistently use ifndef guards over pragma onceEmil Velikov2017-03-221-1/+5
| | | | | | | Signed-off-by: Emil Velikov <[email protected]> Acked-by: Vedran Miletić <[email protected]> Acked-by: Juha-Pekka Heikkila <[email protected]> Reviewed-by: Edward O'Callaghan <[email protected]>
* util/ra: Make allocating conflict lists optionalJason Ekstrand2015-08-181-1/+2
| | | | | | | | | Since i965 is now using make_reg_conflicts_transitive and doesn't need q-value computations, they are disabled on i965. They are enabled everywhere else so that they get the old behavior. This reduces the time spent in eglInitialize() on BDW by around 10-15%. Reviewed-by: Eric Anholt <[email protected]>
* util/ra: Add a function for making all conflicts on a register transitiveJason Ekstrand2015-08-181-0/+1
| | | | Reviewed-by: Eric Anholt <[email protected]>
* Fix invalid extern "C" around header inclusion.Mark Janes2015-03-051-0/+10
| | | | | | | | | | | System headers may contain C++ declarations, which cannot be given C linkage. For this reason, include statements should never occur inside extern "C". This patch moves the C linkage statements to enclose only the declarations within a single header. Reviewed-by: Jose Fonseca <[email protected]>
* mesa: Move register_allocate.c to util.Eric Anholt2014-09-231-0/+79
The r300 gallium driver is using it outside of the Mesa tree, and I wanted to do so for vc4 as well. Rather than make the multiple-definitions problem even more complicated, just move it to more-shared code. v2: Don't forget to delete the symlink in r300 (review by Matt). Delete more r300-helper references (review by Emil) Don't prefix util/ header inclusion with "util/" (review by Emil) Reviewed-by: Matt Turner <[email protected]> (v1) Reviewed-by: Emil Velikov <[email protected]> (v1)