ia64: remove support for machvecs

The only thing remaining of the machvecs is a few checks if we are
running on an SGI UV system.  Replace those with the existing
is_uv_system() check that has been rewritten to simply check the
OEM ID directly.

That leaves us with a generic kernel that is as fast as the previous
DIG/ZX1/UV kernels, but can support all hardware.  Support for UV
and the HP SBA IOMMU is now optional based on new config options.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-27-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 0 insertions, 70 deletions

diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c
deleted file mode 100644
index 3db3be7aaae5..000000000000
--- a/arch/ia64/kernel/machvec.c
+++ /dev/null
@@ -1,70 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <asm/machvec.h>
-
-#ifdef CONFIG_IA64_GENERIC
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-
-#include <asm/page.h>
-
-struct ia64_machine_vector ia64_mv = {
-};
-EXPORT_SYMBOL(ia64_mv);
-
-static struct ia64_machine_vector * __init
-lookup_machvec (const char *name)
-{
-	extern struct ia64_machine_vector machvec_start[];
-	extern struct ia64_machine_vector machvec_end[];
-	struct ia64_machine_vector *mv;
-
-	for (mv = machvec_start; mv < machvec_end; ++mv)
-		if (strcmp (mv->name, name) == 0)
-			return mv;
-
-	return 0;
-}
-
-void __init
-machvec_init (const char *name)
-{
-	struct ia64_machine_vector *mv;
-
-	if (!name)
-		name = acpi_get_sysname();
-	mv = lookup_machvec(name);
-	if (!mv)
-		panic("generic kernel failed to find machine vector for"
-		      " platform %s!", name);
-
-	ia64_mv = *mv;
-	printk(KERN_INFO "booting generic kernel on platform %s\n", name);
-}
-
-void __init
-machvec_init_from_cmdline(const char *cmdline)
-{
-	char str[64];
-	const char *start;
-	char *end;
-
-	if (! (start = strstr(cmdline, "machvec=")) )
-		return machvec_init(NULL);
-
-	strlcpy(str, start + strlen("machvec="), sizeof(str));
-	if ( (end = strchr(str, ' ')) )
-		*end = '\0';
-
-	return machvec_init(str);
-}
-
-#endif /* CONFIG_IA64_GENERIC */
-
-void
-machvec_setup (char **arg)
-{
-}
-EXPORT_SYMBOL(machvec_setup);