geom_redboot(4): Garbage collect disconnected driver

The last MIPS user has been removed in c09981f1 2 years ago, the last
ARM one in ff945277 even 5.5 years ago.

(cherry picked from commit 53df7e58cca7e6726b44f447f10ddc3451cfa851)

2 files changed, 0 insertions, 344 deletions

diff --git a/sys/conf/files b/sys/conf/files
index 22965765bbbe..366bbc9e43bb 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -3618,7 +3618,6 @@ geom/geom_event.c		standard
 geom/geom_flashmap.c		optional fdt cfi | fdt mx25l | mmcsd | fdt n25q | fdt at45d
 geom/geom_io.c			standard
 geom/geom_kern.c		standard
-geom/geom_redboot.c		optional geom_redboot
 geom/geom_slice.c		standard
 geom/geom_subr.c		standard
 geom/geom_vfs.c			standard
diff --git a/sys/geom/geom_redboot.c b/sys/geom/geom_redboot.c
deleted file mode 100644
index f1628e08c118..000000000000
--- a/sys/geom/geom_redboot.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2009 Sam Leffler, Errno Consulting
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
- *    redistribution must be conditioned upon including a substantially
- *    similar Disclaimer requirement for further binary redistribution.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
- * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <sys/cdefs.h>
-#include <sys/param.h>
-#include <sys/errno.h>
-#include <sys/endian.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/fcntl.h>
-#include <sys/malloc.h>
-#include <sys/bio.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/bus.h>
-
-#include <sys/sbuf.h>
-#include <geom/geom.h>
-#include <geom/geom_slice.h>
-
-#define REDBOOT_CLASS_NAME "REDBOOT"
-
-struct fis_image_desc {
-	uint8_t		name[16];	/* null-terminated name */
-	uint32_t	offset;		/* offset in flash */
-	uint32_t	addr;		/* address in memory */
-	uint32_t	size;		/* image size in bytes */
-	uint32_t	entry;		/* offset in image for entry point */
-	uint32_t	dsize;		/* data size in bytes */
-	uint8_t		pad[256-(16+7*sizeof(uint32_t)+sizeof(void*))];
-	struct fis_image_desc *next;	/* linked list (in memory) */
-	uint32_t	dsum;		/* descriptor checksum */
-	uint32_t	fsum;		/* checksum over image data */
-};
-
-#define	FISDIR_NAME	"FIS directory"
-#define	REDBCFG_NAME	"RedBoot config"
-#define	REDBOOT_NAME	"RedBoot"
-
-#define	REDBOOT_MAXSLICE	64
-#define	REDBOOT_MAXOFF \
-	(REDBOOT_MAXSLICE*sizeof(struct fis_image_desc))
-
-struct g_redboot_softc {
-	uint32_t	entry[REDBOOT_MAXSLICE];
-	uint32_t	dsize[REDBOOT_MAXSLICE];
-	uint8_t		readonly[REDBOOT_MAXSLICE];
-	g_access_t	*parent_access;
-};
-
-static void
-g_redboot_print(int i, struct fis_image_desc *fd)
-{
-
-	printf("[%2d] \"%-15.15s\" %08x:%08x", i, fd->name,
-	    fd->offset, fd->size);
-	printf(" addr %08x entry %08x\n", fd->addr, fd->entry);
-	printf("     dsize 0x%x dsum 0x%x fsum 0x%x\n", fd->dsize,
-	    fd->dsum, fd->fsum);
-}
-
-static int
-g_redboot_ioctl(struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td)
-{
-	return (ENOIOCTL);
-}
-
-static int
-g_redboot_access(struct g_provider *pp, int dread, int dwrite, int dexcl)
-{
-	struct g_geom *gp = pp->geom;
-	struct g_slicer *gsp = gp->softc;
-	struct g_redboot_softc *sc = gsp->softc;
-
-	if (dwrite > 0 && sc->readonly[pp->index])
-		return (EPERM);
-	return (sc->parent_access(pp, dread, dwrite, dexcl));
-}
-
-static int
-g_redboot_start(struct bio *bp)
-{
-	struct g_provider *pp;
-	struct g_geom *gp;
-	struct g_redboot_softc *sc;
-	struct g_slicer *gsp;
-	int idx;
-
-	pp = bp->bio_to;
-	idx = pp->index;
-	gp = pp->geom;
-	gsp = gp->softc;
-	sc = gsp->softc;
-	if (bp->bio_cmd == BIO_GETATTR) {
-		if (g_handleattr_int(bp, REDBOOT_CLASS_NAME "::entry",
-		    sc->entry[idx]))
-			return (1);
-		if (g_handleattr_int(bp, REDBOOT_CLASS_NAME "::dsize",
-		    sc->dsize[idx]))
-			return (1);
-	}
-
-	return (0);
-}
-
-static void
-g_redboot_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp,
-	struct g_consumer *cp __unused, struct g_provider *pp)
-{
-	struct g_redboot_softc *sc;
-	struct g_slicer *gsp;
-
-	gsp = gp->softc;
-	sc = gsp->softc;
-	g_slice_dumpconf(sb, indent, gp, cp, pp);
-	if (pp != NULL) {
-		if (indent == NULL) {
-			sbuf_printf(sb, " entry %d", sc->entry[pp->index]);
-			sbuf_printf(sb, " dsize %d", sc->dsize[pp->index]);
-		} else {
-			sbuf_printf(sb, "%s<entry>%d</entry>\n", indent,
-			    sc->entry[pp->index]);
-			sbuf_printf(sb, "%s<dsize>%d</dsize>\n", indent,
-			    sc->dsize[pp->index]);
-		}
-	}
-}
-
-#include <sys/ctype.h>
-
-static int
-nameok(const char name[16])
-{
-	int i;
-
-	/* descriptor names are null-terminated printable ascii */
-	for (i = 0; i < 15; i++)
-		if (!isprint(name[i]))
-			break;
-	return (name[i] == '\0');
-}
-
-static struct fis_image_desc *
-parse_fis_directory(u_char *buf, size_t bufsize, off_t offset, uint32_t offmask)
-{
-#define	match(a,b)	(bcmp(a, b, sizeof(b)-1) == 0)
-	struct fis_image_desc *fd, *efd;
-	struct fis_image_desc *fisdir, *redbcfg;
-	struct fis_image_desc *head, **tail;
-	int i;
-
-	fd = (struct fis_image_desc *)buf;
-	efd = fd + (bufsize / sizeof(struct fis_image_desc));
-#if 0
-	/*
-	 * Find the start of the FIS table.
-	 */
-	while (fd < efd && fd->name[0] != 0xff)
-		fd++;
-	if (fd == efd)
-		return (NULL);
-	if (bootverbose)
-		printf("RedBoot FIS table starts at 0x%jx\n",
-		    offset + fd - (struct fis_image_desc *) buf);
-#endif
-	/*
-	 * Scan forward collecting entries in a list.
-	 */
-	fisdir = redbcfg = NULL;
-	*(tail = &head) = NULL;
-	for (i = 0; fd < efd; i++, fd++) {
-		if (fd->name[0] == 0xff)
-			continue;
-		if (match(fd->name, FISDIR_NAME))
-			fisdir = fd;
-		else if (match(fd->name, REDBCFG_NAME))
-			redbcfg = fd;
-		if (nameok(fd->name)) {
-			/*
-			 * NB: flash address includes platform mapping;
-			 *     strip it so we have only a flash offset.
-			 */
-			fd->offset &= offmask;
-			if (bootverbose)
-				g_redboot_print(i, fd);
-			*tail = fd;
-			*(tail = &fd->next) = NULL;
-		}
-	}
-	if (fisdir == NULL) {
-		if (bootverbose)
-			printf("No RedBoot FIS table located at %lu\n",
-			    (long) offset);
-		return (NULL);
-	}
-	if (redbcfg != NULL &&
-	    fisdir->offset + fisdir->size == redbcfg->offset) {
-		/*
-		 * Merged FIS/RedBoot config directory.
-		 */
-		if (bootverbose)
-			printf("FIS/RedBoot merged at 0x%jx (not yet)\n",
-			    offset + fisdir->offset);
-		/* XXX */
-	}
-	return head;
-#undef match
-}
-
-static struct g_geom *
-g_redboot_taste(struct g_class *mp, struct g_provider *pp, int insist)
-{
-	struct g_geom *gp;
-	struct g_consumer *cp;
-	struct g_redboot_softc *sc;
-	int error, sectorsize, i;
-	struct fis_image_desc *fd, *head;
-	uint32_t offmask;
-	off_t blksize;		/* NB: flash block size stored as stripesize */
-	u_char *buf;
-	off_t offset;
-	const char *value;
-	char *op;
-
-	offset = 0;
-	if (resource_string_value("redboot", 0, "fisoffset", &value) == 0) {
-		offset = strtouq(value, &op, 0);
-		if (*op != '\0') {
-			offset = 0;
-		}
-	}
-
-	g_trace(G_T_TOPOLOGY, "redboot_taste(%s,%s)", mp->name, pp->name);
-	g_topology_assert();
-	if (!strcmp(pp->geom->class->name, REDBOOT_CLASS_NAME))
-		return (NULL);
-	/* XXX only taste flash providers */
-	if (strncmp(pp->name, "cfi", 3) && 
-	    strncmp(pp->name, "flash/spi", 9))
-		return (NULL);
-	gp = g_slice_new(mp, REDBOOT_MAXSLICE, pp, &cp, &sc, sizeof(*sc),
-	    g_redboot_start);
-	if (gp == NULL)
-		return (NULL);
-	/* interpose our access method */
-	sc->parent_access = gp->access;
-	gp->access = g_redboot_access;
-
-	sectorsize = cp->provider->sectorsize;
-	blksize = cp->provider->stripesize;
-	if (powerof2(cp->provider->mediasize))
-		offmask = cp->provider->mediasize-1;
-	else
-		offmask = 0xffffffff;		/* XXX */
-	if (bootverbose)
-		printf("%s: mediasize %ld secsize %d blksize %ju offmask 0x%x\n",
-		    __func__, (long) cp->provider->mediasize, sectorsize,
-		    (uintmax_t)blksize, offmask);
-	if (sectorsize < sizeof(struct fis_image_desc) ||
-	    (sectorsize % sizeof(struct fis_image_desc)))
-		return (NULL);
-	g_topology_unlock();
-	head = NULL;
-	if(offset == 0)
-		offset = cp->provider->mediasize - blksize;
-again:
-	buf = g_read_data(cp, offset, blksize, NULL);
-	if (buf != NULL)
-		head = parse_fis_directory(buf, blksize, offset, offmask);
-	if (head == NULL && offset != 0) {
-		g_free(buf);
-		offset = 0;			/* check the front */
-		goto again;
-	}
-	g_topology_lock();
-	if (head == NULL) {
-		g_free(buf);
-		return NULL;
-	}
-	/*
-	 * Craft a slice for each entry.
-	 */
-	for (fd = head, i = 0; fd != NULL; fd = fd->next) {
-		if (fd->name[0] == '\0')
-			continue;
-		error = g_slice_config(gp, i, G_SLICE_CONFIG_SET,
-		    fd->offset, fd->size, sectorsize, "redboot/%s", fd->name);
-		if (error)
-			printf("%s: g_slice_config returns %d for \"%s\"\n",
-			    __func__, error, fd->name);
-		sc->entry[i] = fd->entry;
-		sc->dsize[i] = fd->dsize;
-		/* disallow writing hard-to-recover entries */
-		sc->readonly[i] = (strcmp(fd->name, FISDIR_NAME) == 0) ||
-				  (strcmp(fd->name, REDBOOT_NAME) == 0);
-		i++;
-	}
-	g_free(buf);
-	g_access(cp, -1, 0, 0);
-	if (LIST_EMPTY(&gp->provider)) {
-		g_slice_spoiled(cp);
-		return (NULL);
-	}
-	return (gp);
-}
-
-static struct g_class g_redboot_class	= {
-	.name		= REDBOOT_CLASS_NAME,
-	.version	= G_VERSION,
-	.taste		= g_redboot_taste,
-	.dumpconf	= g_redboot_dumpconf,
-	.ioctl		= g_redboot_ioctl,
-};
-DECLARE_GEOM_CLASS(g_redboot_class, g_redboot);
-MODULE_VERSION(geom_redboot, 0);