Author: zbb Date: Thu Jul 16 10:22:57 2015 New Revision: 285626 URL: https://svnweb.freebsd.org/changeset/base/285626
Log: Set-up proper TCR values for memory related to Translation Table Walking This commit adds proper cache and shareability attributes to the TCR register. Set memory attributes to Normal, outer and inner cacheable WBWA. Set shareability to inner and outer shareable when SMP is enabled. Reviewed by: andrew Obtained from: Semihalf Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D3093 Modified: head/sys/arm64/arm64/locore.S head/sys/arm64/include/armreg.h Modified: head/sys/arm64/arm64/locore.S ============================================================================== --- head/sys/arm64/arm64/locore.S Thu Jul 16 10:12:10 2015 (r285625) +++ head/sys/arm64/arm64/locore.S Thu Jul 16 10:22:57 2015 (r285626) @@ -535,7 +535,8 @@ mair: /* Device Normal, no cache Normal, write-back */ .quad MAIR_ATTR(0x00, 0) | MAIR_ATTR(0x44, 1) | MAIR_ATTR(0xff, 2) tcr: - .quad (TCR_TxSZ(64 - VIRT_BITS) | TCR_ASID_16 | TCR_TG1_4K) + .quad (TCR_TxSZ(64 - VIRT_BITS) | TCR_ASID_16 | TCR_TG1_4K | \ + TCR_CACHE_ATTRS | TCR_SMP_ATTRS) sctlr_set: /* Bits to set */ .quad (SCTLR_UCI | SCTLR_nTWE | SCTLR_nTWI | SCTLR_UCT | SCTLR_DZE | \ Modified: head/sys/arm64/include/armreg.h ============================================================================== --- head/sys/arm64/include/armreg.h Thu Jul 16 10:12:10 2015 (r285625) +++ head/sys/arm64/include/armreg.h Thu Jul 16 10:22:57 2015 (r285626) @@ -200,6 +200,28 @@ #define TCR_TG1_4K (2 << TCR_TG1_SHIFT) #define TCR_TG1_64K (3 << TCR_TG1_SHIFT) +#define TCR_SH1_SHIFT 28 +#define TCR_SH1_IS (0x3UL << TCR_SH1_SHIFT) +#define TCR_ORGN1_SHIFT 26 +#define TCR_ORGN1_WBWA (0x1UL << TCR_ORGN1_SHIFT) +#define TCR_IRGN1_SHIFT 24 +#define TCR_IRGN1_WBWA (0x1UL << TCR_IRGN1_SHIFT) +#define TCR_SH0_SHIFT 12 +#define TCR_SH0_IS (0x3UL << TCR_SH0_SHIFT) +#define TCR_ORGN0_SHIFT 10 +#define TCR_ORGN0_WBWA (0x1UL << TCR_ORGN0_SHIFT) +#define TCR_IRGN0_SHIFT 8 +#define TCR_IRGN0_WBWA (0x1UL << TCR_IRGN0_SHIFT) + +#define TCR_CACHE_ATTRS ((TCR_IRGN0_WBWA | TCR_IRGN1_WBWA) |\ + (TCR_ORGN0_WBWA | TCR_ORGN1_WBWA)) + +#ifdef SMP +#define TCR_SMP_ATTRS (TCR_SH0_IS | TCR_SH1_IS) +#else +#define TCR_SMP_ATTRS 0 +#endif + #define TCR_T1SZ_SHIFT 16 #define TCR_T0SZ_SHIFT 0 #define TCR_TxSZ(x) (((x) << TCR_T1SZ_SHIFT) | ((x) << TCR_T0SZ_SHIFT)) _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
