[src/trunk]: src/sys/arch/sparc64 sun4v: All cpus must be setup with a TSB de...

[palle <palle%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ea44a15b85b1
branches:  trunk
changeset: 802150:ea44a15b85b1
user:      palle <palle%NetBSD.org@localhost>
date:      Thu Sep 04 18:48:29 2014 +0000

description:
sun4v: All cpus must be setup with a TSB descriptor, so pmap_setup_tsb_sun4v() must take a pointer to the TSB descriptor

diffstat:

 sys/arch/sparc64/include/cpu.h       |   8 ++++++-
 sys/arch/sparc64/include/pmap.h      |   7 ++++-
 sys/arch/sparc64/sparc64/genassym.cf |   3 +-
 sys/arch/sparc64/sparc64/locore.s    |   3 +-
 sys/arch/sparc64/sparc64/pmap.c      |  41 +++++++++++++++--------------------
 5 files changed, 34 insertions(+), 28 deletions(-)

diffs (183 lines):

diff -r 843ade12d3bf -r ea44a15b85b1 sys/arch/sparc64/include/cpu.h
--- a/sys/arch/sparc64/include/cpu.h    Thu Sep 04 13:29:50 2014 +0000
+++ b/sys/arch/sparc64/include/cpu.h    Thu Sep 04 18:48:29 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpu.h,v 1.111 2014/06/08 17:33:24 palle Exp $ */
+/*     $NetBSD: cpu.h,v 1.112 2014/09/04 18:48:29 palle Exp $ */
 
 /*
  * Copyright (c) 1992, 1993
@@ -71,6 +71,9 @@
 #include <machine/cpuset.h>
 #include <sparc64/sparc64/intreg.h>
 #endif
+#ifdef SUN4V
+#include <sparc64/hypervisor.h>
+#endif
 
 #include <sys/cpu_data.h>
 #include <sys/evcnt.h>
@@ -174,6 +177,9 @@
        pte_t                   *ci_tsb_dmmu;
        pte_t                   *ci_tsb_immu;
 
+       /* TSB description (sun4v). */
+       struct tsb_desc         *ci_tsb_desc;
+       
        /* MMU Fault Status Area (sun4v).
         * Will be initialized to the physical address of the bottom of
         * the interrupt stack.
diff -r 843ade12d3bf -r ea44a15b85b1 sys/arch/sparc64/include/pmap.h
--- a/sys/arch/sparc64/include/pmap.h   Thu Sep 04 13:29:50 2014 +0000
+++ b/sys/arch/sparc64/include/pmap.h   Thu Sep 04 18:48:29 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.h,v 1.58 2014/04/14 10:54:08 martin Exp $ */
+/*     $NetBSD: pmap.h,v 1.59 2014/09/04 18:48:29 palle Exp $  */
 
 /*-
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -40,6 +40,9 @@
 #include <uvm/uvm_object.h>
 #ifdef _KERNEL
 #include <machine/cpuset.h>
+#ifdef SUN4V
+#include <sparc64/hypervisor.h>
+#endif
 #endif
 #endif
 
@@ -234,7 +237,7 @@
 #ifdef SUN4V
 /* sun4v specific */
 void           pmap_setup_intstack_sun4v(paddr_t);
-void           pmap_setup_tsb_sun4v(void);
+void           pmap_setup_tsb_sun4v(struct tsb_desc*);
 #endif
 
 /* Installed physical memory, as discovered during bootstrap. */
diff -r 843ade12d3bf -r ea44a15b85b1 sys/arch/sparc64/sparc64/genassym.cf
--- a/sys/arch/sparc64/sparc64/genassym.cf      Thu Sep 04 13:29:50 2014 +0000
+++ b/sys/arch/sparc64/sparc64/genassym.cf      Thu Sep 04 18:48:29 2014 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: genassym.cf,v 1.73 2014/02/21 18:00:09 palle Exp $
+#      $NetBSD: genassym.cf,v 1.74 2014/09/04 18:48:29 palle Exp $
 
 #
 # Copyright (c) 1997 The NetBSD Foundation, Inc.
@@ -168,6 +168,7 @@
 define CI_TSB_DMMU     offsetof(struct cpu_info, ci_tsb_dmmu)
 define CI_TSB_IMMU     offsetof(struct cpu_info, ci_tsb_immu)
 define CI_MMFSA        offsetof(struct cpu_info, ci_mmfsa)
+define CI_TSB_DESC     offsetof(struct cpu_info, ci_tsb_desc)
 ifdef MULTIPROCESSOR
 define CI_IPIEVC       offsetof(struct cpu_info, ci_ipi_evcnt[0].ev_count)
 endif
diff -r 843ade12d3bf -r ea44a15b85b1 sys/arch/sparc64/sparc64/locore.s
--- a/sys/arch/sparc64/sparc64/locore.s Thu Sep 04 13:29:50 2014 +0000
+++ b/sys/arch/sparc64/sparc64/locore.s Thu Sep 04 18:48:29 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.s,v 1.371 2014/08/31 18:49:42 palle Exp $       */
+/*     $NetBSD: locore.s,v 1.372 2014/09/04 18:48:29 palle Exp $       */
 
 /*
  * Copyright (c) 2006-2010 Matthew R. Green
@@ -4521,6 +4521,7 @@
         nop
 
        /* sun4v */
+       LDPTR   [%l7 + CI_TSB_DESC], %o0
        call    _C_LABEL(pmap_setup_tsb_sun4v)
         nop
        ba      1f
diff -r 843ade12d3bf -r ea44a15b85b1 sys/arch/sparc64/sparc64/pmap.c
--- a/sys/arch/sparc64/sparc64/pmap.c   Thu Sep 04 13:29:50 2014 +0000
+++ b/sys/arch/sparc64/sparc64/pmap.c   Thu Sep 04 18:48:29 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.289 2014/07/10 06:24:02 jdc Exp $   */
+/*     $NetBSD: pmap.c,v 1.290 2014/09/04 18:48:29 palle Exp $ */
 /*
  *
  * Copyright (C) 1996-1999 Eduardo Horvath.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.289 2014/07/10 06:24:02 jdc Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.290 2014/09/04 18:48:29 palle Exp $");
 
 #undef NO_VCACHE /* Don't forget the locked TLB in dostart */
 #define        HWREF
@@ -149,10 +149,6 @@
 #define TSBENTS (512<<tsbsize)
 #define        TSBSIZE (TSBENTS * 16)
 
-#ifdef SUN4V
-struct tsb_desc *tsb_desc;
-#endif
-
 static struct pmap kernel_pmap_;
 struct pmap *const kernel_pmap_ptr = &kernel_pmap_;
 
@@ -1157,8 +1153,10 @@
                cpus->ci_spinup = main; /* Call main when we're running. */
                cpus->ci_paddr = cpu0paddr;
 #ifdef SUN4V
-               if (CPU_ISSUN4V)
+               if (CPU_ISSUN4V) {
                        cpus->ci_mmfsa = cpu0paddr;
+                       cpus->ci_tsb_desc = NULL;
+               }
 #endif
                cpus->ci_cpcb = (struct pcb *)u0va;
                cpus->ci_idepth = -1;
@@ -1244,22 +1242,21 @@
        }
 
 #ifdef SUN4V
-       if (initial && CPU_ISSUN4V) {
-               tsb_desc = (struct tsb_desc *)kdata_alloc(
+       if (CPU_ISSUN4V) {
+               ci->ci_tsb_desc = (struct tsb_desc *)kdata_alloc(
                        sizeof(struct tsb_desc), 16);
-               memset(tsb_desc, 0, sizeof(struct tsb_desc));
+               memset(ci->ci_tsb_desc, 0, sizeof(struct tsb_desc));
                /* 8K page size used for TSB index computation */
-               tsb_desc->td_idxpgsz = 0;
-               tsb_desc->td_assoc = 1;
-               tsb_desc->td_size = TSBENTS;
-               tsb_desc->td_ctxidx = -1;
-               tsb_desc->td_pgsz = 0xf;
-               tsb_desc->td_pa = pmap_kextract((vaddr_t)ci->ci_tsb_dmmu);
+               ci->ci_tsb_desc->td_idxpgsz = 0;
+               ci->ci_tsb_desc->td_assoc = 1;
+               ci->ci_tsb_desc->td_size = TSBENTS;
+               ci->ci_tsb_desc->td_ctxidx = -1;
+               ci->ci_tsb_desc->td_pgsz = 0xf;
+               ci->ci_tsb_desc->td_pa = pmap_kextract((vaddr_t)ci->ci_tsb_dmmu);
                BDPRINTF(PDB_BOOT1, ("cpu %d: TSB descriptor allocated at %p "
                    "size %08x - td_pa at %p\n",
-                   ci->ci_index, tsb_desc, sizeof(struct tsb_desc),
-                   tsb_desc->td_pa));
-               
+                   ci->ci_index, ci->ci_tsb_desc, sizeof(struct tsb_desc),
+                   ci->ci_tsb_desc->td_pa));
        }
 #endif
 
@@ -3808,14 +3805,12 @@
 }
 
 void
-pmap_setup_tsb_sun4v(void)
+pmap_setup_tsb_sun4v(struct tsb_desc* tsb_desc)
 {
        int err;
-       extern struct tsb_desc *tsb_desc;
-       extern paddr_t pmap_kextract(vaddr_t va);
        paddr_t tsb_desc_p;
        tsb_desc_p = pmap_kextract((vaddr_t)tsb_desc);
-       if ( !tsb_desc_p ) {
+       if (!tsb_desc_p) {
                panic("pmap_setup_tsb_sun4v() pmap_kextract() failed");
        }
        err = hv_mmu_tsb_ctx0(1, tsb_desc_p);