Garbage collect the code to store diagnostics codes in a CMOS register

during SMP startup.  We haven't had any issues with starting up the APs
on i386 in quite a while now which is all this code is really useful for.
If someone ever does really need it they can always dig it up out of the
attic.

3 files changed, 0 insertions, 107 deletions

diff --git a/sys/i386/i386/mp_machdep.c b/sys/i386/i386/mp_machdep.c
index fab5e0f0..336b4dd 100644
--- a/sys/i386/i386/mp_machdep.c
+++ b/sys/i386/i386/mp_machdep.c
@@ -126,29 +126,9 @@ __FBSDID("$FreeBSD$");
 
 #endif				/* CHECK_POINTS */
 
-/*
- * Values to send to the POST hardware.
- */
-#define MP_BOOTADDRESS_POST	0x10
-#define MP_PROBE_POST		0x11
-#define MPTABLE_PASS1_POST	0x12
-
-#define MP_START_POST		0x13
-#define MP_ENABLE_POST		0x14
-#define MPTABLE_PASS2_POST	0x15
-
-#define START_ALL_APS_POST	0x16
-#define INSTALL_AP_TRAMP_POST	0x17
-#define START_AP_POST		0x18
-
-#define MP_ANNOUNCE_POST	0x19
-
 /* lock region used by kernel profiling */
 int	mcount_lock;
 
-/** XXX FIXME: where does this really belong, isa.h/isa.c perhaps? */
-int	current_postcode;
-
 int	mp_naps;		/* # of Applications processors */
 int	boot_cpu_id = -1;	/* designated BSP */
 extern	int nkpt;
@@ -302,7 +282,6 @@ mp_topology(void)
 u_int
 mp_bootaddress(u_int basemem)
 {
-	POSTCODE(MP_BOOTADDRESS_POST);
 
 	boot_address = trunc_page(basemem);	/* round down to 4k boundary */
 	if ((basemem - boot_address) < bootMP_size)
@@ -385,8 +364,6 @@ cpu_mp_start(void)
 	int i;
 	u_int threads_per_cache, p[4];
 
-	POSTCODE(MP_START_POST);
-
 	/* Initialize the logical ID to APIC ID table. */
 	for (i = 0; i < MAXCPU; i++) {
 		cpu_apic_ids[i] = -1;
@@ -489,8 +466,6 @@ cpu_mp_announce(void)
 {
 	int i, x;
 
-	POSTCODE(MP_ANNOUNCE_POST);
-
 	/* List CPUs */
 	printf(" cpu0 (BSP): APIC ID: %2d\n", boot_cpu_id);
 	for (i = 1, x = 0; x < MAXCPU; x++) {
@@ -715,8 +690,6 @@ start_all_aps(void)
 	u_int32_t mpbioswarmvec;
 	int apic_id, cpu, i, pg;
 
-	POSTCODE(START_ALL_APS_POST);
-
 	mtx_init(&ap_boot_mtx, "ap boot", NULL, MTX_SPIN);
 
 	/* install the AP 1st level boot code */
@@ -860,8 +833,6 @@ install_ap_tramp(void)
 	u_int16_t *dst16;
 	u_int32_t *dst32;
 
-	POSTCODE(INSTALL_AP_TRAMP_POST);
-
 	KASSERT (size <= PAGE_SIZE,
 	    ("'size' do not fit into PAGE_SIZE, as expected."));
 	pmap_kenter(va, boot_address);
@@ -912,8 +883,6 @@ start_ap(int apic_id)
 	int vector, ms;
 	int cpus;
 
-	POSTCODE(START_AP_POST);
-
 	/* calculate the vector */
 	vector = (boot_address >> 12) & 0xff;
 
diff --git a/sys/i386/include/smp.h b/sys/i386/include/smp.h
index d2482fe..9cb5673 100644
--- a/sys/i386/include/smp.h
+++ b/sys/i386/include/smp.h
@@ -19,20 +19,6 @@
 
 #ifndef LOCORE
 
-/*
- * For sending values to POST displays.
- * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
- */
-extern int current_postcode;  /** XXX currently in mp_machdep.c */
-#define POSTCODE(X)	current_postcode = (X), \
-			outb(0x80, current_postcode)
-#define POSTCODE_LO(X)	current_postcode &= 0xf0, \
-			current_postcode |= ((X) & 0x0f), \
-			outb(0x80, current_postcode)
-#define POSTCODE_HI(X)	current_postcode &= 0x0f, \
-			current_postcode |= (((X) << 4) & 0xf0), \
-			outb(0x80, current_postcode)
-
 #include <sys/bus.h>
 #include <machine/frame.h>
 #include <machine/intr_machdep.h>
diff --git a/sys/i386/include/smptests.h b/sys/i386/include/smptests.h
index 3d60740..cf755f6 100644
--- a/sys/i386/include/smptests.h
+++ b/sys/i386/include/smptests.h
@@ -51,66 +51,4 @@
 #define	COUNT_IPIS
  */
 
-/*
- * Address of POST hardware port.
- * Defining this enables POSTCODE macros.
- *
-#define POST_ADDR		0x80
- */
-
-
-/*
- * POST hardware macros.
- */
-#ifdef POST_ADDR
-#define ASMPOSTCODE_INC				\
-	pushl	%eax ;				\
-	movl	_current_postcode, %eax ;	\
-	incl	%eax ;				\
-	andl	$0xff, %eax ;			\
-	movl	%eax, _current_postcode ;	\
-	outb	%al, $POST_ADDR ;		\
-	popl	%eax
-
-/*
- * Overwrite the current_postcode value.
- */
-#define ASMPOSTCODE(X)				\
-	pushl	%eax ;				\
-	movl	$X, %eax ;			\
-	movl	%eax, _current_postcode ;	\
-	outb	%al, $POST_ADDR ;		\
-	popl	%eax
-
-/*
- * Overwrite the current_postcode low nibble.
- */
-#define ASMPOSTCODE_LO(X)			\
-	pushl	%eax ;				\
-	movl	_current_postcode, %eax ;	\
-	andl	$0xf0, %eax ;			\
-	orl	$X, %eax ;			\
-	movl	%eax, _current_postcode ;	\
-	outb	%al, $POST_ADDR ;		\
-	popl	%eax
-
-/*
- * Overwrite the current_postcode high nibble.
- */
-#define ASMPOSTCODE_HI(X)			\
-	pushl	%eax ;				\
-	movl	_current_postcode, %eax ;	\
-	andl	$0x0f, %eax ;			\
-	orl	$(X<<4), %eax ;			\
-	movl	%eax, _current_postcode ;	\
-	outb	%al, $POST_ADDR ;		\
-	popl	%eax
-#else
-#define ASMPOSTCODE_INC
-#define ASMPOSTCODE(X)
-#define ASMPOSTCODE_LO(X)
-#define ASMPOSTCODE_HI(X)
-#endif /* POST_ADDR */
-
-
 #endif /* _MACHINE_SMPTESTS_H_ */