From: Jiri Slaby <jirislaby@gmail.com>
To: mingo@redhat.com
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
Jiri Slaby <jirislaby@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH 2/4] x86_32: apic/es7000_32, cpu_mask_to_apicid cleanup
Date: Thu, 26 Feb 2009 22:45:30 +0100 [thread overview]
Message-ID: <1235684732-5991-2-git-send-email-jirislaby@gmail.com> (raw)
In-Reply-To: <1235684732-5991-1-git-send-email-jirislaby@gmail.com>
Remove es7000_cpu_mask_to_apicid_cluster completely, because it's
almost the same as es7000_cpu_mask_to_apicid except 2 code paths.
One of them is about to be removed soon, the another should be
BAD_APICID (it's a fail path).
The _cluster one was not invoked on apic->cpu_mask_to_apicid_and
anyway, since there was no _cluster_and variant.
Also use newer cpumask functions.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
---
arch/x86/kernel/apic/es7000_32.c | 46 ++-----------------------------------
1 files changed, 3 insertions(+), 43 deletions(-)
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index 320f2d2..6c15126 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -565,25 +565,21 @@ static int es7000_check_phys_apicid_present(int cpu_physical_apicid)
return 1;
}
-static unsigned int
-es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
+static unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
{
- int cpus_found = 0;
- int num_bits_set;
+ unsigned int cpu, num_bits_set, cpus_found = 0;
int apicid;
- int cpu;
num_bits_set = cpumask_weight(cpumask);
/* Return id to all */
if (num_bits_set == nr_cpu_ids)
- return 0xFF;
+ return es7000_cpu_to_logical_apicid(0);
/*
* The cpus in the mask must all be on the apic cluster. If are not
* on the same apicid cluster return default value of target_cpus():
*/
cpu = cpumask_first(cpumask);
apicid = es7000_cpu_to_logical_apicid(cpu);
-
while (cpus_found < num_bits_set) {
if (cpumask_test_cpu(cpu, cpumask)) {
int new_apicid = es7000_cpu_to_logical_apicid(cpu);
@@ -591,40 +587,6 @@ es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
WARN(1, "Not a valid mask!");
- return 0xFF;
- }
- apicid = new_apicid;
- cpus_found++;
- }
- cpu++;
- }
- return apicid;
-}
-
-static unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
-{
- int cpus_found = 0;
- int num_bits_set;
- int apicid;
- int cpu;
-
- num_bits_set = cpus_weight(*cpumask);
- /* Return id to all */
- if (num_bits_set == nr_cpu_ids)
- return es7000_cpu_to_logical_apicid(0);
- /*
- * The cpus in the mask must all be on the apic cluster. If are not
- * on the same apicid cluster return default value of target_cpus():
- */
- cpu = first_cpu(*cpumask);
- apicid = es7000_cpu_to_logical_apicid(cpu);
- while (cpus_found < num_bits_set) {
- if (cpu_isset(cpu, *cpumask)) {
- int new_apicid = es7000_cpu_to_logical_apicid(cpu);
-
- if (APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
- printk("%s: Not a valid mask!\n", __func__);
-
return es7000_cpu_to_logical_apicid(0);
}
apicid = new_apicid;
@@ -667,8 +629,6 @@ void __init es7000_update_apic_to_cluster(void)
apic->irq_dest_mode = 1;
apic->init_apic_ldr = es7000_init_apic_ldr_cluster;
-
- apic->cpu_mask_to_apicid = es7000_cpu_mask_to_apicid_cluster;
}
static int probe_es7000(void)
--
1.6.1.3
next prev parent reply other threads:[~2009-02-26 21:46 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-24 17:38 [PATCH 1/2] x86_32: summit_32, use BAD_APICID jirislaby
2009-02-24 17:38 ` [PATCH 2/2] x86_32: summit_32, de-inline functions jirislaby
2009-02-24 17:55 ` [PATCH 1/2] x86_32: summit_32, use BAD_APICID Ingo Molnar
2009-02-24 20:41 ` [PATCH v2 " Jiri Slaby
2009-02-24 20:41 ` [PATCH v2 2/2] x86_32: summit_32, de-inline functions Jiri Slaby
2009-02-25 11:00 ` [PATCH v2 1/2] x86_32: summit_32, use BAD_APICID Jiri Slaby
2009-02-25 11:10 ` Ingo Molnar
2009-02-26 21:45 ` [PATCH 1/4] x86_32: apic/bigsmp_32, de-inline functions Jiri Slaby
2009-02-26 21:45 ` Jiri Slaby [this message]
2009-02-26 21:45 ` [PATCH 3/4] x86_32: apic/es7000_32, fix cpu_mask_to_apicid Jiri Slaby
2009-02-26 21:45 ` [PATCH 4/4] x86_32: apic/summit_32, " Jiri Slaby
2009-02-26 21:50 ` [PATCH v2 3/4] x86_32: apic/es7000_32, " Jiri Slaby
2009-02-26 22:00 ` [PATCH v2 1/2] x86_32: summit_32, use BAD_APICID Jiri Slaby
2009-02-28 8:21 ` Ingo Molnar
2009-03-02 9:53 ` [PATCH 1/4] x86_32: apic/bigsmp_32, de-inline functions Jiri Slaby
2009-03-02 9:53 ` [PATCH 2/4] x86_32: apic/es7000_32, cpu_mask_to_apicid cleanup Jiri Slaby
2009-03-02 9:53 ` [PATCH 3/4] x86_32: apic/es7000_32, fix cpu_mask_to_apicid Jiri Slaby
2009-03-02 9:53 ` [PATCH 4/4] x86_32: apic/summit_32, " Jiri Slaby
2009-03-08 17:00 ` [PATCH v2 1/2] x86_32: summit_32, use BAD_APICID Jiri Slaby
2009-03-11 8:45 ` cpu_mask_to_apicid: Not a valid mask! [was: x86_32: summit_32, use BAD_APICID] Jiri Slaby
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=1235684732-5991-2-git-send-email-jirislaby@gmail.com \
--to=jirislaby@gmail.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=x86@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