2 commits

Author	SHA1	Message	Date
Conrad Meyer	dc8f777787	uart_cpu_acpi: Fix GCC build break from r348195 ... extern declarations are redundant with those in uart_cpu.h, which this file includes. X-MFC-with: r348195	2019-05-23 20:18:46 +00:00
Colin Percival	7f166c931e	Use ACPI SPCR on x86 ... This takes the SPCR code currently in uart_cpu_arm64.c, moves it into a new uart_cpu_acpi.c (with some associated refactoring), and uses it from both arm64 and x86. An SPCR serial port address AccessWidth field value of 0 ("reserved") is now treated as 1 ("byte access") in order to work around a buggy SPCR table on Amazon EC2 i3.metal instances. Reviewed by: manu, Greg V MFC after: 3 days Sponsored by: https://www.patreon.com/cperciva Differential Revision: https://reviews.freebsd.org/D20357	2019-05-23 19:55:53 +00:00