From: David Howells <dhowells@redhat.com>
To: linux-am33-list@redhat.com
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 15/43] MN10300: Cache: Split cache bits out of arch Kconfig
Date: Tue, 26 Oct 2010 03:54:21 +0100 [thread overview]
Message-ID: <20101026025421.23512.78330.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <20101026025301.23512.24525.stgit@warthog.procyon.org.uk>
Split the cache bits out of arch/mn10300/Kconfig as they're quite complex.
Signed-off-by: David Howells <dhowells@redhat.com>
---
arch/mn10300/Kconfig | 29 +----------------------------
arch/mn10300/mm/Kconfig.cache | 32 ++++++++++++++++++++++++++++++++
2 files changed, 33 insertions(+), 28 deletions(-)
create mode 100644 arch/mn10300/mm/Kconfig.cache
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index eab0c2a..069e34d 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -136,34 +136,7 @@ config FPU
default y
depends on MN10300_PROC_MN103E010
-choice
- prompt "CPU Caching mode"
- default MN10300_CACHE_WBACK
- help
- This option determines the caching mode for the kernel.
-
- Write-Back caching mode involves the all reads and writes causing
- the affected cacheline to be read into the cache first before being
- operated upon. Memory is not then updated by a write until the cache
- is filled and a cacheline needs to be displaced from the cache to
- make room. Only at that point is it written back.
-
- Write-Through caching only fetches cachelines from memory on a
- read. Writes always get written directly to memory. If the affected
- cacheline is also in cache, it will be updated too.
-
- The final option is to turn of caching entirely.
-
-config MN10300_CACHE_WBACK
- bool "Write-Back"
-
-config MN10300_CACHE_WTHRU
- bool "Write-Through"
-
-config MN10300_CACHE_DISABLED
- bool "Disabled"
-
-endchoice
+source "arch/mn10300/mm/Kconfig.cache"
menu "Memory layout options"
diff --git a/arch/mn10300/mm/Kconfig.cache b/arch/mn10300/mm/Kconfig.cache
new file mode 100644
index 0000000..f5599f4
--- /dev/null
+++ b/arch/mn10300/mm/Kconfig.cache
@@ -0,0 +1,32 @@
+#
+# MN10300 CPU cache options
+#
+
+choice
+ prompt "CPU Caching mode"
+ default MN10300_CACHE_WBACK
+ help
+ This option determines the caching mode for the kernel.
+
+ Write-Back caching mode involves the all reads and writes causing
+ the affected cacheline to be read into the cache first before being
+ operated upon. Memory is not then updated by a write until the cache
+ is filled and a cacheline needs to be displaced from the cache to
+ make room. Only at that point is it written back.
+
+ Write-Through caching only fetches cachelines from memory on a
+ read. Writes always get written directly to memory. If the affected
+ cacheline is also in cache, it will be updated too.
+
+ The final option is to turn of caching entirely.
+
+config MN10300_CACHE_WBACK
+ bool "Write-Back"
+
+config MN10300_CACHE_WTHRU
+ bool "Write-Through"
+
+config MN10300_CACHE_DISABLED
+ bool "Disabled"
+
+endchoice
next prev parent reply other threads:[~2010-10-26 2:54 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-26 2:53 [PATCH 00/43] MN10300: Add SMP support and AM34 CPU core support David Howells
2010-10-26 2:53 ` [PATCH 01/43] Partially revert patch that encloses asm-offset.h numbers in brackets David Howells
2010-10-26 2:53 ` [PATCH 02/43] MN10300: BUG to BUG_ON changes David Howells
2010-10-26 2:53 ` [PATCH 03/43] bitops: Change the bitmap index from int to unsigned long [mn10300] David Howells
2010-10-26 2:53 ` [PATCH 04/43] mn10300: Use pci_claim_resource David Howells
2010-10-26 2:53 ` [PATCH 05/43] MN10300: Prevent cnt32_to_63() from being preempted in sched_clock() David Howells
2010-10-26 2:53 ` [PATCH 06/43] Typedef SMP call function pointer David Howells
2010-10-26 2:53 ` [PATCH 07/43] MN10300: Don't cast away the volatile in test_bit() David Howells
2010-10-26 2:53 ` [PATCH 08/43] MN10300: Add reads[bwl]() and writes[bwl]() David Howells
2010-10-26 2:53 ` [PATCH 09/43] MN10300: Provide the functions to fully disable maskable interrupts David Howells
2010-10-26 2:53 ` [PATCH 10/43] MN10300: Differentiate AM33_2 and AM33_3 in config David Howells
2010-10-26 2:54 ` [PATCH 11/43] MN10300: Move DMA engine control reg defs to MN103E010 processor directory David Howells
2010-10-26 2:54 ` [PATCH 12/43] MN10300: Don't hard code the cacheline size in register defs David Howells
2010-10-26 2:54 ` [PATCH 13/43] MN10300: Add CPU register bits for AM34 David Howells
2010-10-26 2:54 ` [PATCH 14/43] MN10300: Remove monitor/JTAG functions David Howells
2010-10-26 2:54 ` David Howells [this message]
2010-10-26 2:54 ` [PATCH 16/43] MN10300: Provide a MN10300_CACHE_ENABLED config option David Howells
2010-10-26 2:54 ` [PATCH 17/43] MN10300: Reorder asm/cacheflush.h to put primitives first David Howells
2010-10-26 2:54 ` [PATCH 18/43] MN10300: AM34: The current cacheflush routines operate by controlling tag regs David Howells
2010-10-26 2:54 ` [PATCH 19/43] MN10300: Cacheflush functions should take unsigned long addresses David Howells
2010-10-26 2:54 ` [PATCH 20/43] MN10300: SMP: Differentiate local cache flushing David Howells
2010-10-26 2:54 ` [PATCH 21/43] MN10300: AM34: Add cacheflushing by using the AM34 purge registers David Howells
2010-10-26 2:54 ` [PATCH 22/43] MN10300: Allow some cacheflushes to be avoided if cache snooping is available David Howells
2010-10-26 2:55 ` [PATCH 23/43] MN10300: Cache: Implement SMP global cache flushing David Howells
2010-10-26 2:55 ` [PATCH 24/43] MN10300: Make the boot wrapper able to use writeback caching David Howells
2010-10-26 2:55 ` [PATCH 25/43] MN10300: AM34 erratum requires MMUCTR read and write on exception entry David Howells
2010-10-26 2:55 ` [PATCH 26/43] MN10300: Rename __flush_tlb*() to local_flush_tlb*() David Howells
2010-10-26 2:55 ` [PATCH 27/43] MN10300: Make the use of PIDR to mark TLB entries controllable David Howells
2010-10-26 2:55 ` [PATCH 28/43] MN10300: Use the [ID]PTEL2 registers rather than [ID]PTEL for TLB control David Howells
2010-10-26 2:55 ` [PATCH 29/43] MN10300: SMP TLB flushing David Howells
2010-10-26 2:55 ` [PATCH 30/43] MN10300: Make the FPU operate in non-lazy mode under SMP David Howells
2010-10-26 2:55 ` [PATCH 31/43] MN10300: Implement atomic ops using atomic ops unit David Howells
2010-10-26 2:55 ` [PATCH 32/43] MN10300: Optimise do_csum() David Howells
2010-10-26 2:55 ` [PATCH 33/43] MN10300: Make various interrupt priority settings configurable David Howells
2010-10-26 2:56 ` [PATCH 34/43] MN10300: Delete idle_timestamp from irq_cpustat_t David Howells
2010-10-26 2:56 ` [PATCH 35/43] MN10300: And Panasonic AM34 subarch and implement SMP David Howells
2010-10-27 13:31 ` [Linux-am33-list] " Suzuki Takashi
2010-10-27 14:33 ` David Howells
2010-10-26 2:56 ` [PATCH 36/43] MN10300: ASB2364: Add support for SMSC911X and SMC911X David Howells
2010-10-26 2:56 ` [PATCH 37/43] MN10300: Map userspace atomic op regs as a vmalloc page David Howells
2010-10-26 2:56 ` [PATCH 38/43] MN10300: Specify an ELF HWCAP flag for MN10300 Atomic Operations Unit support David Howells
2010-10-26 2:56 ` [PATCH 39/43] MN10300: Generic time support David Howells
2010-10-26 2:56 ` [PATCH 40/43] MN10300: Update the ASB2303 defconfig David Howells
2010-10-26 2:56 ` [PATCH 41/43] MN10300: Create a defconfig for the ASB2364 board David Howells
2010-10-26 2:56 ` [PATCH 42/43] MN10300: Change "Matsushita" to "Panasonic" David Howells
2010-10-26 2:56 ` [PATCH 43/43] MN10300: Save frame pointer in thread_info struct rather than global var David Howells
2010-10-26 3:07 ` [PATCH 00/43] MN10300: Add SMP support and AM34 CPU core support David Howells
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20101026025421.23512.78330.stgit@warthog.procyon.org.uk \
--to=dhowells@redhat.com \
--cc=linux-am33-list@redhat.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®