diff options
Diffstat (limited to 'arch/mips/mti-malta')
| -rw-r--r-- | arch/mips/mti-malta/malta-int.c | 27 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-memory.c | 40 |
2 files changed, 55 insertions, 12 deletions
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index ecc2785f7858..e4f43baa8f67 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -42,6 +42,10 @@ static unsigned int ipi_map[NR_CPUS]; static DEFINE_RAW_SPINLOCK(mips_irq_lock); +#ifdef CONFIG_MIPS_GIC_IPI +DECLARE_BITMAP(ipi_ints, GIC_NUM_INTRS); +#endif + static inline int mips_pcibios_iack(void) { int irq; @@ -125,16 +129,22 @@ static void malta_hw0_irqdispatch(void) static void malta_ipi_irqdispatch(void) { - int irq; +#ifdef CONFIG_MIPS_GIC_IPI + unsigned long irq; + DECLARE_BITMAP(pending, GIC_NUM_INTRS); - if (gic_compare_int()) - do_IRQ(MIPS_GIC_IRQ_BASE); + gic_get_int_mask(pending, ipi_ints); + + irq = find_first_bit(pending, GIC_NUM_INTRS); - irq = gic_get_int(); - if (irq < 0) - return; /* interrupt has already been cleared */ + while (irq < GIC_NUM_INTRS) { + do_IRQ(MIPS_GIC_IRQ_BASE + irq); - do_IRQ(MIPS_GIC_IRQ_BASE + irq); + irq = find_next_bit(pending, GIC_NUM_INTRS, irq + 1); + } +#endif + if (gic_compare_int()) + do_IRQ(MIPS_GIC_IRQ_BASE); } static void corehi_irqdispatch(void) @@ -427,8 +437,9 @@ static void __init fill_ipi_map1(int baseintr, int cpu, int cpupin) gic_intr_map[intr].pin = cpupin; gic_intr_map[intr].polarity = GIC_POL_POS; gic_intr_map[intr].trigtype = GIC_TRIG_EDGE; - gic_intr_map[intr].flags = GIC_FLAG_IPI; + gic_intr_map[intr].flags = 0; ipi_map[cpu] |= (1 << (cpupin + 2)); + bitmap_set(ipi_ints, intr, 1); } static void __init fill_ipi_map(void) diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c index 6d9773096750..8fddd2cdbff7 100644 --- a/arch/mips/mti-malta/malta-memory.c +++ b/arch/mips/mti-malta/malta-memory.c @@ -16,6 +16,7 @@ #include <linux/string.h> #include <asm/bootinfo.h> +#include <asm/maar.h> #include <asm/sections.h> #include <asm/fw/fw.h> @@ -34,13 +35,19 @@ fw_memblock_t * __init fw_getmdesc(int eva) /* otherwise look in the environment */ memsize_str = fw_getenv("memsize"); - if (memsize_str) - tmp = kstrtol(memsize_str, 0, &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 = kstrtol(ememsize_str, 0, &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"); @@ -164,3 +171,28 @@ void __init prom_free_prom_memory(void) addr, addr + boot_mem_map.map[i].size); } } + +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); +} |