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authorKyösti Mälkki <kyosti.malkki@gmail.com>2019-11-25 20:03:27 +0200
committerPatrick Georgi <pgeorgi@google.com>2019-12-02 12:08:40 +0000
commit1804b158969ab849ea7c6e47b1bb6b297c1f8e45 (patch)
treeacb7e53947eb9d578939a604158605212a1e8afa /src/mainboard/google
parentab62d940fe15a04bda3d8c17ed2f1b5585616d64 (diff)
soc/amd/common: Inline ACPI MMIO accessors
The overhead of pushing variables to stack exceeded the number of instructions the actual MMIO operation took and the build of google/aleena with inlined accessors turned out to be just slightly (<2 KiB) smaller for the entire romstage or ramstage. Simple read-modify-write MMIO cycles should optimise better now. IO cycles with index/data register are borderline, at first sight assembly looked better by not inlining them. Change-Id: If2c37c9886a0151183aa6dd80eb068d6c67b3848 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37211 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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