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-rw-r--r--arch/arm/mm/cache-uniphier.c63
-rw-r--r--arch/arm/mm/mmu.c21
2 files changed, 19 insertions, 65 deletions
diff --git a/arch/arm/mm/cache-uniphier.c b/arch/arm/mm/cache-uniphier.c
index c8e2f4947223..dfe97b409916 100644
--- a/arch/arm/mm/cache-uniphier.c
+++ b/arch/arm/mm/cache-uniphier.c
@@ -1,5 +1,6 @@
/*
- * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2015-2016 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* 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
@@ -43,27 +44,15 @@
#define UNIPHIER_SSCOPE_CM_SYNC 0x8 /* sync (drain bufs) */
#define UNIPHIER_SSCOPE_CM_FLUSH_PREFETCH 0x9 /* flush p-fetch buf */
#define UNIPHIER_SSCOQM 0x248 /* Cache Operation Queue Mode */
-#define UNIPHIER_SSCOQM_TID_MASK (0x3 << 21)
-#define UNIPHIER_SSCOQM_TID_LRU_DATA (0x0 << 21)
-#define UNIPHIER_SSCOQM_TID_LRU_INST (0x1 << 21)
-#define UNIPHIER_SSCOQM_TID_WAY (0x2 << 21)
#define UNIPHIER_SSCOQM_S_MASK (0x3 << 17)
#define UNIPHIER_SSCOQM_S_RANGE (0x0 << 17)
#define UNIPHIER_SSCOQM_S_ALL (0x1 << 17)
-#define UNIPHIER_SSCOQM_S_WAY (0x2 << 17)
#define UNIPHIER_SSCOQM_CE BIT(15) /* notify completion */
#define UNIPHIER_SSCOQM_CM_INV 0x0 /* invalidate */
#define UNIPHIER_SSCOQM_CM_CLEAN 0x1 /* clean */
#define UNIPHIER_SSCOQM_CM_FLUSH 0x2 /* flush */
-#define UNIPHIER_SSCOQM_CM_PREFETCH 0x3 /* prefetch to cache */
-#define UNIPHIER_SSCOQM_CM_PREFETCH_BUF 0x4 /* prefetch to pf-buf */
-#define UNIPHIER_SSCOQM_CM_TOUCH 0x5 /* touch */
-#define UNIPHIER_SSCOQM_CM_TOUCH_ZERO 0x6 /* touch to zero */
-#define UNIPHIER_SSCOQM_CM_TOUCH_DIRTY 0x7 /* touch with dirty */
#define UNIPHIER_SSCOQAD 0x24c /* Cache Operation Queue Address */
#define UNIPHIER_SSCOQSZ 0x250 /* Cache Operation Queue Size */
-#define UNIPHIER_SSCOQMASK 0x254 /* Cache Operation Queue Address Mask */
-#define UNIPHIER_SSCOQWN 0x258 /* Cache Operation Queue Way Number */
#define UNIPHIER_SSCOPPQSEF 0x25c /* Cache Operation Queue Set Complete*/
#define UNIPHIER_SSCOPPQSEF_FE BIT(1)
#define UNIPHIER_SSCOPPQSEF_OE BIT(0)
@@ -72,9 +61,6 @@
#define UNIPHIER_SSCOLPQS_EST BIT(1)
#define UNIPHIER_SSCOLPQS_QST BIT(0)
-/* Is the touch/pre-fetch destination specified by ways? */
-#define UNIPHIER_SSCOQM_TID_IS_WAY(op) \
- ((op & UNIPHIER_SSCOQM_TID_MASK) == UNIPHIER_SSCOQM_TID_WAY)
/* Is the operation region specified by address range? */
#define UNIPHIER_SSCOQM_S_IS_RANGE(op) \
((op & UNIPHIER_SSCOQM_S_MASK) == UNIPHIER_SSCOQM_S_RANGE)
@@ -178,11 +164,6 @@ static void __uniphier_cache_maint_common(struct uniphier_cache_data *data,
writel_relaxed(start, data->op_base + UNIPHIER_SSCOQAD);
writel_relaxed(size, data->op_base + UNIPHIER_SSCOQSZ);
}
-
- /* set target ways if needed */
- if (unlikely(UNIPHIER_SSCOQM_TID_IS_WAY(operation)))
- writel_relaxed(data->way_locked_mask,
- data->op_base + UNIPHIER_SSCOQWN);
} while (unlikely(readl_relaxed(data->op_base + UNIPHIER_SSCOPPQSEF) &
(UNIPHIER_SSCOPPQSEF_FE | UNIPHIER_SSCOPPQSEF_OE)));
@@ -338,46 +319,8 @@ static void uniphier_cache_sync(void)
__uniphier_cache_sync(data);
}
-int __init uniphier_cache_l2_is_enabled(void)
-{
- struct uniphier_cache_data *data;
-
- data = list_first_entry_or_null(&uniphier_cache_list,
- struct uniphier_cache_data, list);
- if (!data)
- return 0;
-
- return !!(readl_relaxed(data->ctrl_base + UNIPHIER_SSCC) &
- UNIPHIER_SSCC_ON);
-}
-
-void __init uniphier_cache_l2_touch_range(unsigned long start,
- unsigned long end)
-{
- struct uniphier_cache_data *data;
-
- data = list_first_entry_or_null(&uniphier_cache_list,
- struct uniphier_cache_data, list);
- if (data)
- __uniphier_cache_maint_range(data, start, end,
- UNIPHIER_SSCOQM_TID_WAY |
- UNIPHIER_SSCOQM_CM_TOUCH);
-}
-
-void __init uniphier_cache_l2_set_locked_ways(u32 way_mask)
-{
- struct uniphier_cache_data *data;
-
- data = list_first_entry_or_null(&uniphier_cache_list,
- struct uniphier_cache_data, list);
- if (data)
- __uniphier_cache_set_locked_ways(data, way_mask);
-}
-
static const struct of_device_id uniphier_cache_match[] __initconst = {
- {
- .compatible = "socionext,uniphier-system-cache",
- },
+ { .compatible = "socionext,uniphier-system-cache" },
{ /* sentinel */ }
};
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 62f4d01941f7..6344913f0804 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -728,7 +728,8 @@ static void *__init late_alloc(unsigned long sz)
{
void *ptr = (void *)__get_free_pages(PGALLOC_GFP, get_order(sz));
- BUG_ON(!ptr);
+ if (!ptr || !pgtable_page_ctor(virt_to_page(ptr)))
+ BUG();
return ptr;
}
@@ -1155,10 +1156,19 @@ void __init sanity_check_meminfo(void)
{
phys_addr_t memblock_limit = 0;
int highmem = 0;
- phys_addr_t vmalloc_limit = __pa(vmalloc_min - 1) + 1;
+ u64 vmalloc_limit;
struct memblock_region *reg;
bool should_use_highmem = false;
+ /*
+ * Let's use our own (unoptimized) equivalent of __pa() that is
+ * not affected by wrap-arounds when sizeof(phys_addr_t) == 4.
+ * The result is used as the upper bound on physical memory address
+ * and may itself be outside the valid range for which phys_addr_t
+ * and therefore __pa() is defined.
+ */
+ vmalloc_limit = (u64)(uintptr_t)vmalloc_min - PAGE_OFFSET + PHYS_OFFSET;
+
for_each_memblock(memory, reg) {
phys_addr_t block_start = reg->base;
phys_addr_t block_end = reg->base + reg->size;
@@ -1183,10 +1193,11 @@ void __init sanity_check_meminfo(void)
if (reg->size > size_limit) {
phys_addr_t overlap_size = reg->size - size_limit;
- pr_notice("Truncating RAM at %pa-%pa to -%pa",
- &block_start, &block_end, &vmalloc_limit);
- memblock_remove(vmalloc_limit, overlap_size);
+ pr_notice("Truncating RAM at %pa-%pa",
+ &block_start, &block_end);
block_end = vmalloc_limit;
+ pr_cont(" to -%pa", &block_end);
+ memblock_remove(vmalloc_limit, overlap_size);
should_use_highmem = true;
}
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-29 21:43:42 +0300