From: Josh Boyer <jwboyer@linux.vnet.ibm.com>
To: paulus@samba.org
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH v2] powerpc: Fix PowerPC 750CL and 750GX CPU features
Date: Thu, 12 Apr 2007 13:33:25 -0500 [thread overview]
Message-ID: <1176402805.6379.84.camel@zod.rchland.ibm.com> (raw)
PowerPC 750CL has high BATs. The patch below adds a CPU_FTRS_750CL that
includes that. Without it, the original firmware mappings in the high BATs
aren't cleared which continue to override the linux translations.
It also adds CPU_FTR_COMMON to CPU_FTRS_750GX for completeness.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
---
arch/powerpc/kernel/cputable.c | 4 ++--
include/asm-powerpc/cputable.h | 10 +++++++---
2 files changed, 9 insertions(+), 5 deletions(-)
--- linux-2.6.orig/arch/powerpc/kernel/cputable.c
+++ linux-2.6/arch/powerpc/kernel/cputable.c
@@ -562,12 +562,12 @@ static struct cpu_spec cpu_specs[] = {
.pvr_mask = 0xfffff0f0,
.pvr_value = 0x00087010,
.cpu_name = "750CL",
- .cpu_features = CPU_FTRS_750,
+ .cpu_features = CPU_FTRS_750CL,
.cpu_user_features = COMMON_USER | PPC_FEATURE_PPC_LE,
.icache_bsize = 32,
.dcache_bsize = 32,
.num_pmcs = 4,
- .cpu_setup = __setup_cpu_750cx,
+ .cpu_setup = __setup_cpu_750,
.platform = "ppc750",
},
{ /* 745/755 */
--- linux-2.6.orig/include/asm-powerpc/cputable.h
+++ linux-2.6/include/asm-powerpc/cputable.h
@@ -223,6 +223,10 @@ extern void do_feature_fixups(unsigned l
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
CPU_FTR_PPC_LE)
+#define CPU_FTRS_750CL (CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE | \
+ CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
+ CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
+ CPU_FTR_HAS_HIGH_BATS | CPU_FTR_PPC_LE)
#define CPU_FTRS_750FX1 (CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE | \
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
@@ -235,9 +239,9 @@ extern void do_feature_fixups(unsigned l
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
CPU_FTR_DUAL_PLL_750FX | CPU_FTR_HAS_HIGH_BATS | CPU_FTR_PPC_LE)
-#define CPU_FTRS_750GX (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE | \
- CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU | \
- CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
+#define CPU_FTRS_750GX (CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE | \
+ CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
+ CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
CPU_FTR_DUAL_PLL_750FX | CPU_FTR_HAS_HIGH_BATS | CPU_FTR_PPC_LE)
#define CPU_FTRS_7400_NOTAU (CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE | \
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
next reply other threads:[~2007-04-12 18:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-12 18:33 Josh Boyer [this message]
2007-04-12 19:28 ` [PATCH v2] powerpc: Fix PowerPC 750CL and 750GX CPU features Segher Boessenkool
2007-04-12 19:54 ` Josh Boyer
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=1176402805.6379.84.camel@zod.rchland.ibm.com \
--to=jwboyer@linux.vnet.ibm.com \
--cc=linuxppc-dev@ozlabs.org \
--cc=paulus@samba.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;
as well as URLs for NNTP newsgroup(s).