powerpc64: Add initial support for HTM (kABI)
This patch adds the very initial support for HTM that might come at FreeBSD version 12.1. This basic support defines a new kABI, so, we do not need to change it later during 12.1 time frame, when the full implementation will come. Reviewed by: jhibbits Approved by: re(marius), jhibbits (mentor) Differential Revision: https://reviews.freebsd.org/D16889
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=338500
@ -56,6 +56,7 @@ struct pcb {
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#define PCB_VEC 0x4 /* Process had Altivec initialized */
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#define PCB_VSX 0x8 /* Process had VSX initialized */
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#define PCB_CDSCR 0x10 /* Process had Custom DSCR initialized */
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#define PCB_HTM 0x20 /* Process had HTM initialized */
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struct fpu {
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union {
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double fpr;
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@ -73,6 +74,11 @@ struct pcb {
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} pcb_vec __aligned(16); /* Vector processor */
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unsigned int pcb_veccpu; /* which CPU had our vector
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stuff. */
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struct htm {
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uint64_t tfhar;
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uint64_t texasr;
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uint64_t tfiar;
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} pcb_htm;
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union {
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struct {
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@ -45,6 +45,7 @@ struct pvo_entry;
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struct pmap *pc_curpmap; /* current pmap */ \
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struct thread *pc_fputhread; /* current fpu user */ \
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struct thread *pc_vecthread; /* current vec user */ \
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struct thread *pc_htmthread; /* current htm user */ \
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uintptr_t pc_hwref; \
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int pc_bsp; \
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volatile int pc_awake; \
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