These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 2 insertions, 154 deletions

diff --git a/kernel/arch/mips/mti-malta/malta-memory.c b/kernel/arch/mips/mti-malta/malta-memory.c
index b769657be..d5f8dae6a 100644
--- a/kernel/arch/mips/mti-malta/malta-memory.c
+++ b/kernel/arch/mips/mti-malta/malta-memory.c
@@ -21,147 +21,20 @@
 #include <asm/sections.h>
 #include <asm/fw/fw.h>
 
-static fw_memblock_t mdesc[FW_MAX_MEMBLOCKS];
-
 /* determined physical memory size, not overridden by command line args	 */
 unsigned long physical_memsize = 0L;
 
-fw_memblock_t * __init fw_getmdesc(int eva)
-{
-	char *memsize_str, *ememsize_str = NULL, *ptr;
-	unsigned long memsize = 0, ememsize = 0;
-	static char cmdline[COMMAND_LINE_SIZE] __initdata;
-	int tmp;
-
-	/* otherwise look in the environment */
-
-	memsize_str = fw_getenv("memsize");
-	if (memsize_str) {
-		tmp = kstrtoul(memsize_str, 0, &memsize);
-		if (tmp)
-			pr_warn("Failed to read the 'memsize' env variable.\n");
-	}
-	if (eva) {
-	/* Look for ememsize for EVA */
-		ememsize_str = fw_getenv("ememsize");
-		if (ememsize_str) {
-			tmp = kstrtoul(ememsize_str, 0, &ememsize);
-			if (tmp)
-				pr_warn("Failed to read the 'ememsize' env variable.\n");
-		}
-	}
-	if (!memsize && !ememsize) {
-		pr_warn("memsize not set in YAMON, set to default (32Mb)\n");
-		physical_memsize = 0x02000000;
-	} else {
-		if (memsize > (256 << 20)) { /* memsize should be capped to 256M */
-			pr_warn("Unsupported memsize value (0x%lx) detected! "
-				"Using 0x10000000 (256M) instead\n",
-				memsize);
-			memsize = 256 << 20;
-		}
-		/* If ememsize is set, then set physical_memsize to that */
-		physical_memsize = ememsize ? : memsize;
-	}
-
-#ifdef CONFIG_CPU_BIG_ENDIAN
-	/* SOC-it swaps, or perhaps doesn't swap, when DMA'ing the last
-	   word of physical memory */
-	physical_memsize -= PAGE_SIZE;
-#endif
-
-	/* Check the command line for a memsize directive that overrides
-	   the physical/default amount */
-	strcpy(cmdline, arcs_cmdline);
-	ptr = strstr(cmdline, "memsize=");
-	if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
-		ptr = strstr(ptr, " memsize=");
-	/* And now look for ememsize */
-	if (eva) {
-		ptr = strstr(cmdline, "ememsize=");
-		if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
-			ptr = strstr(ptr, " ememsize=");
-	}
-
-	if (ptr)
-		memsize = memparse(ptr + 8 + (eva ? 1 : 0), &ptr);
-	else
-		memsize = physical_memsize;
-
-	/* Last 64K for HIGHMEM arithmetics */
-	if (memsize > 0x7fff0000)
-		memsize = 0x7fff0000;
-
-	memset(mdesc, 0, sizeof(mdesc));
-
-	mdesc[0].type = fw_dontuse;
-	mdesc[0].base = PHYS_OFFSET;
-	mdesc[0].size = 0x00001000;
-
-	mdesc[1].type = fw_code;
-	mdesc[1].base = mdesc[0].base + 0x00001000UL;
-	mdesc[1].size = 0x000ef000;
-
-	/*
-	 * The area 0x000f0000-0x000fffff is allocated for BIOS memory by the
-	 * south bridge and PCI access always forwarded to the ISA Bus and
-	 * BIOSCS# is always generated.
-	 * This mean that this area can't be used as DMA memory for PCI
-	 * devices.
-	 */
-	mdesc[2].type = fw_dontuse;
-	mdesc[2].base = mdesc[0].base + 0x000f0000UL;
-	mdesc[2].size = 0x00010000;
-
-	mdesc[3].type = fw_dontuse;
-	mdesc[3].base = mdesc[0].base + 0x00100000UL;
-	mdesc[3].size = CPHYSADDR(PFN_ALIGN((unsigned long)&_end)) -
-		0x00100000UL;
-
-	mdesc[4].type = fw_free;
-	mdesc[4].base = mdesc[0].base + CPHYSADDR(PFN_ALIGN(&_end));
-	mdesc[4].size = memsize - CPHYSADDR(mdesc[4].base);
-
-	return &mdesc[0];
-}
-
 static void free_init_pages_eva_malta(void *begin, void *end)
 {
 	free_init_pages("unused kernel", __pa_symbol((unsigned long *)begin),
 			__pa_symbol((unsigned long *)end));
 }
 
-static int __init fw_memtype_classify(unsigned int type)
-{
-	switch (type) {
-	case fw_free:
-		return BOOT_MEM_RAM;
-	case fw_code:
-		return BOOT_MEM_ROM_DATA;
-	default:
-		return BOOT_MEM_RESERVED;
-	}
-}
-
 void __init fw_meminit(void)
 {
-	fw_memblock_t *p;
-
-	p = fw_getmdesc(config_enabled(CONFIG_EVA));
-	free_init_pages_eva = (config_enabled(CONFIG_EVA) ?
-			       free_init_pages_eva_malta : NULL);
-
-	while (p->size) {
-		long type;
-		unsigned long base, size;
-
-		type = fw_memtype_classify(p->type);
-		base = p->base;
-		size = p->size;
+	bool eva = config_enabled(CONFIG_EVA);
 
-		add_memory_region(base, size, type);
-		p++;
-	}
+	free_init_pages_eva = eva ? free_init_pages_eva_malta : NULL;
 }
 
 void __init prom_free_prom_memory(void)
@@ -179,31 +52,6 @@ void __init prom_free_prom_memory(void)
 	}
 }
 
-unsigned platform_maar_init(unsigned num_pairs)
-{
-	phys_addr_t mem_end = (physical_memsize & ~0xffffull) - 1;
-	struct maar_config cfg[] = {
-		/* DRAM preceding I/O */
-		{ 0x00000000, 0x0fffffff, MIPS_MAAR_S },
-
-		/* DRAM following I/O */
-		{ 0x20000000, mem_end, MIPS_MAAR_S },
-
-		/* DRAM alias in upper half of physical */
-		{ 0x80000000, 0x80000000 + mem_end, MIPS_MAAR_S },
-	};
-	unsigned i, num_cfg = ARRAY_SIZE(cfg);
-
-	/* If DRAM fits before I/O, drop the region following it */
-	if (physical_memsize <= 0x10000000) {
-		num_cfg--;
-		for (i = 1; i < num_cfg; i++)
-			cfg[i] = cfg[i + 1];
-	}
-
-	return maar_config(cfg, num_cfg, num_pairs);
-}
-
 phys_addr_t mips_cdmm_phys_base(void)
 {
 	/* This address is "typically unused" */