Date: Sun, 12 May 2019 08:37:08 +0000 From: bugzilla-noreply@freebsd.org To: ppc@FreeBSD.org Subject: [Bug 233863] Various PowerMac G5 models may require kern.smp.disabled=1 and must set usefdt=1 which causes net interface reorder Message-ID: <bug-233863-21-fW6PaEBPK6@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-233863-21@https.bugs.freebsd.org/bugzilla/> References: <bug-233863-21@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233863 --- Comment #43 from Mark Millard <marklmi26-fbsd@yahoo.com> --- (In reply to Justin Hibbits from comment #40) Continuity and common structure certainly are considerations. For reference, I updated my code to dump out the HID0, HID1, HID4, and HDI5 values for the ap's, dumping values from both before FreeBSD changes them and after they are changed. I was curious. The result was: HIOR(311) before: fff00000, 0 after before: HID0 fc1c000000000000 after: HID0 0151108100000000 before: HDI1 0 after: HDI1 fd3c200000000000 before: HID4 10000000000, HID5 0 after: HID4 1000000000, HID5 0 So differences in: (Hopefully I matched everything up correctly) HID0: one_ppc, do_single, isync_sc, ser-gp, reserved bits 4:5, deep nap, doze, nhr, ext_tb_en, reserved bit 24, en_attn. HID1: bht_pm, en_ls, en_cc, en_ic, pf_mode, en_if_cach, en_ic_rec, ic_pe. HID4: rm_ci, en_sp_dtw. HID5: none. I'll note that en_ic is described with: QUOTE Enable instruction cache (must be =E2=80=981=E2=80=99 for proper functionin= g). END QUOTE (Not that there is a description of what the improper functioning of the 970MP would be.) This was the wording I was most worried about. [There are some other bits that have differences from "preferred state", not that I know the importance of them.] [slbtrap and handle_kernel_slb_spill are using mftb() and so ext_tb_en being different is in use before HID0 is updated.] --=20 You are receiving this mail because: You are the assignee for the bug.=
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