xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge tag 'uniphier-soc-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier into next/soc

Browse Source 
Pull "UniPhier ARM SoC updates for v4.9" from Masahiro Yamada:

* Remove unneeded SMP code

* tag 'uniphier-soc-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier:
  ARM: uniphier: remove SoC-specific SMP code
This commit is contained in:
Arnd Bergmann
2016-09-20 00:03:37 +02:00
parent 1c90e170fe dd34b11566
commit 95ab29a1f1
5 changed files with 6 additions and 331 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
arch/arm/mm/cache-uniphier.c
View File

@@ -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 */ }
};