powerpc: move pSeries files to arch/powerpc/platforms/pseries

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 517 deletions

diff --git a/arch/ppc64/kernel/pSeries_lpar.c b/arch/ppc64/kernel/pSeries_lpar.c
deleted file mode 100644
index 268d8362dde..00000000000
--- a/arch/ppc64/kernel/pSeries_lpar.c
+++ /dev/null
@@ -1,517 +0,0 @@
-/*
- * pSeries_lpar.c
- * Copyright (C) 2001 Todd Inglett, IBM Corporation
- *
- * pSeries LPAR support.
- * 
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- */
-
-#define DEBUG
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/dma-mapping.h>
-#include <asm/processor.h>
-#include <asm/mmu.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/abs_addr.h>
-#include <asm/mmu_context.h>
-#include <asm/ppcdebug.h>
-#include <asm/iommu.h>
-#include <asm/tlbflush.h>
-#include <asm/tlb.h>
-#include <asm/prom.h>
-#include <asm/abs_addr.h>
-#include <asm/cputable.h>
-#include <asm/plpar_wrappers.h>
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/* in pSeries_hvCall.S */
-EXPORT_SYMBOL(plpar_hcall);
-EXPORT_SYMBOL(plpar_hcall_4out);
-EXPORT_SYMBOL(plpar_hcall_norets);
-EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
-
-extern void pSeries_find_serial_port(void);
-
-
-int vtermno;	/* virtual terminal# for udbg  */
-
-#define __ALIGNED__ __attribute__((__aligned__(sizeof(long))))
-static void udbg_hvsi_putc(unsigned char c)
-{
-	/* packet's seqno isn't used anyways */
-	uint8_t packet[] __ALIGNED__ = { 0xff, 5, 0, 0, c };
-	int rc;
-
-	if (c == '\n')
-		udbg_hvsi_putc('\r');
-
-	do {
-		rc = plpar_put_term_char(vtermno, sizeof(packet), packet);
-	} while (rc == H_Busy);
-}
-
-static long hvsi_udbg_buf_len;
-static uint8_t hvsi_udbg_buf[256];
-
-static int udbg_hvsi_getc_poll(void)
-{
-	unsigned char ch;
-	int rc, i;
-
-	if (hvsi_udbg_buf_len == 0) {
-		rc = plpar_get_term_char(vtermno, &hvsi_udbg_buf_len, hvsi_udbg_buf);
-		if (rc != H_Success || hvsi_udbg_buf[0] != 0xff) {
-			/* bad read or non-data packet */
-			hvsi_udbg_buf_len = 0;
-		} else {
-			/* remove the packet header */
-			for (i = 4; i < hvsi_udbg_buf_len; i++)
-				hvsi_udbg_buf[i-4] = hvsi_udbg_buf[i];
-			hvsi_udbg_buf_len -= 4;
-		}
-	}
-
-	if (hvsi_udbg_buf_len <= 0 || hvsi_udbg_buf_len > 256) {
-		/* no data ready */
-		hvsi_udbg_buf_len = 0;
-		return -1;
-	}
-
-	ch = hvsi_udbg_buf[0];
-	/* shift remaining data down */
-	for (i = 1; i < hvsi_udbg_buf_len; i++) {
-		hvsi_udbg_buf[i-1] = hvsi_udbg_buf[i];
-	}
-	hvsi_udbg_buf_len--;
-
-	return ch;
-}
-
-static unsigned char udbg_hvsi_getc(void)
-{
-	int ch;
-	for (;;) {
-		ch = udbg_hvsi_getc_poll();
-		if (ch == -1) {
-			/* This shouldn't be needed...but... */
-			volatile unsigned long delay;
-			for (delay=0; delay < 2000000; delay++)
-				;
-		} else {
-			return ch;
-		}
-	}
-}
-
-static void udbg_putcLP(unsigned char c)
-{
-	char buf[16];
-	unsigned long rc;
-
-	if (c == '\n')
-		udbg_putcLP('\r');
-
-	buf[0] = c;
-	do {
-		rc = plpar_put_term_char(vtermno, 1, buf);
-	} while(rc == H_Busy);
-}
-
-/* Buffered chars getc */
-static long inbuflen;
-static long inbuf[2];	/* must be 2 longs */
-
-static int udbg_getc_pollLP(void)
-{
-	/* The interface is tricky because it may return up to 16 chars.
-	 * We save them statically for future calls to udbg_getc().
-	 */
-	char ch, *buf = (char *)inbuf;
-	int i;
-	long rc;
-	if (inbuflen == 0) {
-		/* get some more chars. */
-		inbuflen = 0;
-		rc = plpar_get_term_char(vtermno, &inbuflen, buf);
-		if (rc != H_Success)
-			inbuflen = 0;	/* otherwise inbuflen is garbage */
-	}
-	if (inbuflen <= 0 || inbuflen > 16) {
-		/* Catch error case as well as other oddities (corruption) */
-		inbuflen = 0;
-		return -1;
-	}
-	ch = buf[0];
-	for (i = 1; i < inbuflen; i++)	/* shuffle them down. */
-		buf[i-1] = buf[i];
-	inbuflen--;
-	return ch;
-}
-
-static unsigned char udbg_getcLP(void)
-{
-	int ch;
-	for (;;) {
-		ch = udbg_getc_pollLP();
-		if (ch == -1) {
-			/* This shouldn't be needed...but... */
-			volatile unsigned long delay;
-			for (delay=0; delay < 2000000; delay++)
-				;
-		} else {
-			return ch;
-		}
-	}
-}
-
-/* call this from early_init() for a working debug console on
- * vterm capable LPAR machines
- */
-void udbg_init_debug_lpar(void)
-{
-	vtermno = 0;
-	udbg_putc = udbg_putcLP;
-	udbg_getc = udbg_getcLP;
-	udbg_getc_poll = udbg_getc_pollLP;
-}
-
-/* returns 0 if couldn't find or use /chosen/stdout as console */
-int find_udbg_vterm(void)
-{
-	struct device_node *stdout_node;
-	u32 *termno;
-	char *name;
-	int found = 0;
-
-	/* find the boot console from /chosen/stdout */
-	if (!of_chosen)
-		return 0;
-	name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
-	if (name == NULL)
-		return 0;
-	stdout_node = of_find_node_by_path(name);
-	if (!stdout_node)
-		return 0;
-
-	/* now we have the stdout node; figure out what type of device it is. */
-	name = (char *)get_property(stdout_node, "name", NULL);
-	if (!name) {
-		printk(KERN_WARNING "stdout node missing 'name' property!\n");
-		goto out;
-	}
-
-	if (strncmp(name, "vty", 3) == 0) {
-		if (device_is_compatible(stdout_node, "hvterm1")) {
-			termno = (u32 *)get_property(stdout_node, "reg", NULL);
-			if (termno) {
-				vtermno = termno[0];
-				udbg_putc = udbg_putcLP;
-				udbg_getc = udbg_getcLP;
-				udbg_getc_poll = udbg_getc_pollLP;
-				found = 1;
-			}
-		} else if (device_is_compatible(stdout_node, "hvterm-protocol")) {
-			termno = (u32 *)get_property(stdout_node, "reg", NULL);
-			if (termno) {
-				vtermno = termno[0];
-				udbg_putc = udbg_hvsi_putc;
-				udbg_getc = udbg_hvsi_getc;
-				udbg_getc_poll = udbg_hvsi_getc_poll;
-				found = 1;
-			}
-		}
-	} else if (strncmp(name, "serial", 6)) {
-		/* XXX fix ISA serial console */
-		printk(KERN_WARNING "serial stdout on LPAR ('%s')! "
-				"can't print udbg messages\n",
-		       stdout_node->full_name);
-	} else {
-		printk(KERN_WARNING "don't know how to print to stdout '%s'\n",
-		       stdout_node->full_name);
-	}
-
-out:
-	of_node_put(stdout_node);
-	return found;
-}
-
-void vpa_init(int cpu)
-{
-	int hwcpu = get_hard_smp_processor_id(cpu);
-	unsigned long vpa = (unsigned long)&(paca[cpu].lppaca);
-	long ret;
-	unsigned long flags;
-
-	/* Register the Virtual Processor Area (VPA) */
-	flags = 1UL << (63 - 18);
-
-	if (cpu_has_feature(CPU_FTR_ALTIVEC))
-		paca[cpu].lppaca.vmxregs_in_use = 1;
-
-	ret = register_vpa(flags, hwcpu, __pa(vpa));
-
-	if (ret)
-		printk(KERN_ERR "WARNING: vpa_init: VPA registration for "
-				"cpu %d (hw %d) of area %lx returns %ld\n",
-				cpu, hwcpu, __pa(vpa), ret);
-}
-
-long pSeries_lpar_hpte_insert(unsigned long hpte_group,
-			      unsigned long va, unsigned long prpn,
-			      unsigned long vflags, unsigned long rflags)
-{
-	unsigned long lpar_rc;
-	unsigned long flags;
-	unsigned long slot;
-	unsigned long hpte_v, hpte_r;
-	unsigned long dummy0, dummy1;
-
-	hpte_v = ((va >> 23) << HPTE_V_AVPN_SHIFT) | vflags | HPTE_V_VALID;
-	if (vflags & HPTE_V_LARGE)
-		hpte_v &= ~(1UL << HPTE_V_AVPN_SHIFT);
-
-	hpte_r = (prpn << HPTE_R_RPN_SHIFT) | rflags;
-
-	/* Now fill in the actual HPTE */
-	/* Set CEC cookie to 0         */
-	/* Zero page = 0               */
-	/* I-cache Invalidate = 0      */
-	/* I-cache synchronize = 0     */
-	/* Exact = 0                   */
-	flags = 0;
-
-	/* XXX why is this here? - Anton */
-	if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
-		hpte_r &= ~_PAGE_COHERENT;
-
-	lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
-			      hpte_r, &slot, &dummy0, &dummy1);
-
-	if (unlikely(lpar_rc == H_PTEG_Full))
-		return -1;
-
-	/*
-	 * Since we try and ioremap PHBs we don't own, the pte insert
-	 * will fail. However we must catch the failure in hash_page
-	 * or we will loop forever, so return -2 in this case.
-	 */
-	if (unlikely(lpar_rc != H_Success))
-		return -2;
-
-	/* Because of iSeries, we have to pass down the secondary
-	 * bucket bit here as well
-	 */
-	return (slot & 7) | (!!(vflags & HPTE_V_SECONDARY) << 3);
-}
-
-static DEFINE_SPINLOCK(pSeries_lpar_tlbie_lock);
-
-static long pSeries_lpar_hpte_remove(unsigned long hpte_group)
-{
-	unsigned long slot_offset;
-	unsigned long lpar_rc;
-	int i;
-	unsigned long dummy1, dummy2;
-
-	/* pick a random slot to start at */
-	slot_offset = mftb() & 0x7;
-
-	for (i = 0; i < HPTES_PER_GROUP; i++) {
-
-		/* don't remove a bolted entry */
-		lpar_rc = plpar_pte_remove(H_ANDCOND, hpte_group + slot_offset,
-					   (0x1UL << 4), &dummy1, &dummy2);
-
-		if (lpar_rc == H_Success)
-			return i;
-
-		BUG_ON(lpar_rc != H_Not_Found);
-
-		slot_offset++;
-		slot_offset &= 0x7;
-	}
-
-	return -1;
-}
-
-static void pSeries_lpar_hptab_clear(void)
-{
-	unsigned long size_bytes = 1UL << ppc64_pft_size;
-	unsigned long hpte_count = size_bytes >> 4;
-	unsigned long dummy1, dummy2;
-	int i;
-
-	/* TODO: Use bulk call */
-	for (i = 0; i < hpte_count; i++)
-		plpar_pte_remove(0, i, 0, &dummy1, &dummy2);
-}
-
-/*
- * NOTE: for updatepp ops we are fortunate that the linux "newpp" bits and
- * the low 3 bits of flags happen to line up.  So no transform is needed.
- * We can probably optimize here and assume the high bits of newpp are
- * already zero.  For now I am paranoid.
- */
-static long pSeries_lpar_hpte_updatepp(unsigned long slot, unsigned long newpp,
-				       unsigned long va, int large, int local)
-{
-	unsigned long lpar_rc;
-	unsigned long flags = (newpp & 7) | H_AVPN;
-	unsigned long avpn = va >> 23;
-
-	if (large)
-		avpn &= ~0x1UL;
-
-	lpar_rc = plpar_pte_protect(flags, slot, (avpn << 7));
-
-	if (lpar_rc == H_Not_Found)
-		return -1;
-
-	BUG_ON(lpar_rc != H_Success);
-
-	return 0;
-}
-
-static unsigned long pSeries_lpar_hpte_getword0(unsigned long slot)
-{
-	unsigned long dword0;
-	unsigned long lpar_rc;
-	unsigned long dummy_word1;
-	unsigned long flags;
-
-	/* Read 1 pte at a time                        */
-	/* Do not need RPN to logical page translation */
-	/* No cross CEC PFT access                     */
-	flags = 0;
-
-	lpar_rc = plpar_pte_read(flags, slot, &dword0, &dummy_word1);
-
-	BUG_ON(lpar_rc != H_Success);
-
-	return dword0;
-}
-
-static long pSeries_lpar_hpte_find(unsigned long vpn)
-{
-	unsigned long hash;
-	unsigned long i, j;
-	long slot;
-	unsigned long hpte_v;
-
-	hash = hpt_hash(vpn, 0);
-
-	for (j = 0; j < 2; j++) {
-		slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
-		for (i = 0; i < HPTES_PER_GROUP; i++) {
-			hpte_v = pSeries_lpar_hpte_getword0(slot);
-
-			if ((HPTE_V_AVPN_VAL(hpte_v) == (vpn >> 11))
-			    && (hpte_v & HPTE_V_VALID)
-			    && (!!(hpte_v & HPTE_V_SECONDARY) == j)) {
-				/* HPTE matches */
-				if (j)
-					slot = -slot;
-				return slot;
-			}
-			++slot;
-		}
-		hash = ~hash;
-	}
-
-	return -1;
-} 
-
-static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp,
-					     unsigned long ea)
-{
-	unsigned long lpar_rc;
-	unsigned long vsid, va, vpn, flags;
-	long slot;
-
-	vsid = get_kernel_vsid(ea);
-	va = (vsid << 28) | (ea & 0x0fffffff);
-	vpn = va >> PAGE_SHIFT;
-
-	slot = pSeries_lpar_hpte_find(vpn);
-	BUG_ON(slot == -1);
-
-	flags = newpp & 7;
-	lpar_rc = plpar_pte_protect(flags, slot, 0);
-
-	BUG_ON(lpar_rc != H_Success);
-}
-
-static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
-					 int large, int local)
-{
-	unsigned long avpn = va >> 23;
-	unsigned long lpar_rc;
-	unsigned long dummy1, dummy2;
-
-	if (large)
-		avpn &= ~0x1UL;
-
-	lpar_rc = plpar_pte_remove(H_AVPN, slot, (avpn << 7), &dummy1,
-				   &dummy2);
-
-	if (lpar_rc == H_Not_Found)
-		return;
-
-	BUG_ON(lpar_rc != H_Success);
-}
-
-/*
- * Take a spinlock around flushes to avoid bouncing the hypervisor tlbie
- * lock.
- */
-void pSeries_lpar_flush_hash_range(unsigned long number, int local)
-{
-	int i;
-	unsigned long flags = 0;
-	struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch);
-	int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE);
-
-	if (lock_tlbie)
-		spin_lock_irqsave(&pSeries_lpar_tlbie_lock, flags);
-
-	for (i = 0; i < number; i++)
-		flush_hash_page(batch->vaddr[i], batch->pte[i], local);
-
-	if (lock_tlbie)
-		spin_unlock_irqrestore(&pSeries_lpar_tlbie_lock, flags);
-}
-
-void hpte_init_lpar(void)
-{
-	ppc_md.hpte_invalidate	= pSeries_lpar_hpte_invalidate;
-	ppc_md.hpte_updatepp	= pSeries_lpar_hpte_updatepp;
-	ppc_md.hpte_updateboltedpp = pSeries_lpar_hpte_updateboltedpp;
-	ppc_md.hpte_insert	= pSeries_lpar_hpte_insert;
-	ppc_md.hpte_remove	= pSeries_lpar_hpte_remove;
-	ppc_md.flush_hash_range	= pSeries_lpar_flush_hash_range;
-	ppc_md.hpte_clear_all   = pSeries_lpar_hptab_clear;
-
-	htab_finish_init();
-}