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From: Juergen Gross <jgross@suse.com>
To: xen-devel@lists.xenproject.org, x86@kernel.org,
	linux-kernel@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH v2 06/10] x86/mtrr: remove set_all callback from struct mtrr_ops
Date: Sat, 20 Aug 2022 11:25:29 +0200	[thread overview]
Message-ID: <20220820092533.29420-7-jgross@suse.com> (raw)
In-Reply-To: <20220820092533.29420-1-jgross@suse.com>

Instead of using an indirect call to mtrr_if->set_all just call the
only possible target cache_cpu_init() directly. This enables to remove
the set_all callback from struct mtrr_ops.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 arch/x86/kernel/cpu/mtrr/generic.c |  1 -
 arch/x86/kernel/cpu/mtrr/mtrr.c    | 10 +++++-----
 arch/x86/kernel/cpu/mtrr/mtrr.h    |  2 --
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 0be6d43ec1fe..1c6260b94cb9 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -848,7 +848,6 @@ int positive_have_wrcomb(void)
  * Generic structure...
  */
 const struct mtrr_ops generic_mtrr_ops = {
-	.set_all		= cache_cpu_init,
 	.get			= generic_get_mtrr,
 	.get_free_region	= generic_get_free_region,
 	.set			= generic_set_mtrr,
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.c b/arch/x86/kernel/cpu/mtrr/mtrr.c
index 4cd9c8d1473e..19662ab057be 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.c
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.c
@@ -165,15 +165,15 @@ static int mtrr_rendezvous_handler(void *info)
 	 * saved, and we want to replicate that across all the cpus that come
 	 * online (either at the end of boot or resume or during a runtime cpu
 	 * online). If we're doing that, @reg is set to something special and on
-	 * all the cpu's we do mtrr_if->set_all() (On the logical cpu that
+	 * all the cpu's we do cache_cpu_init() (On the logical cpu that
 	 * started the boot/resume sequence, this might be a duplicate
-	 * set_all()).
+	 * cache_cpu_init()).
 	 */
 	if (data->smp_reg != ~0U) {
 		mtrr_if->set(data->smp_reg, data->smp_base,
 			     data->smp_size, data->smp_type);
 	} else if (mtrr_aps_delayed_init || !cpu_online(smp_processor_id())) {
-		mtrr_if->set_all();
+		cache_cpu_init();
 	}
 	return 0;
 }
@@ -768,7 +768,7 @@ void __init mtrr_bp_init(void)
 
 			if (mtrr_cleanup(phys_addr)) {
 				changed_by_mtrr_cleanup = 1;
-				mtrr_if->set_all();
+				cache_cpu_init();
 			}
 		}
 	}
@@ -854,7 +854,7 @@ void mtrr_bp_restore(void)
 	if (!cache_generic)
 		return;
 
-	mtrr_if->set_all();
+	cache_cpu_init();
 }
 
 static int __init mtrr_init_finialize(void)
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index 88b1c4b6174a..3b1883185185 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -16,8 +16,6 @@ struct mtrr_ops {
 	u32	vendor;
 	void	(*set)(unsigned int reg, unsigned long base,
 		       unsigned long size, mtrr_type type);
-	void	(*set_all)(void);
-
 	void	(*get)(unsigned int reg, unsigned long *base,
 		       unsigned long *size, mtrr_type *type);
 	int	(*get_free_region)(unsigned long base, unsigned long size,
-- 
2.35.3


  parent reply	other threads:[~2022-08-20  9:26 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-20  9:25 [PATCH v2 00/10] x86: make pat and mtrr independent from each other Juergen Gross
2022-08-20  9:25 ` [PATCH v2 01/10] x86/mtrr: fix MTRR fixup on APs Juergen Gross
2022-08-20 10:28   ` Greg KH
2022-08-21 12:25   ` Borislav Petkov
2022-08-21 21:41     ` Borislav Petkov
2022-08-22  5:17       ` Juergen Gross
2022-08-22  8:28         ` Borislav Petkov
2022-08-22  8:32           ` Juergen Gross
2022-10-19 18:45   ` [tip: x86/cpu] x86/mtrr: Add comment for set_mtrr_state() serialization tip-bot2 for Juergen Gross
2022-08-20  9:25 ` [PATCH v2 02/10] x86/mtrr: remove unused cyrix_set_all() function Juergen Gross
2022-08-25 10:31   ` Borislav Petkov
2022-08-25 10:38     ` Juergen Gross
2022-08-25 10:41     ` Juergen Gross
2022-08-25 11:42       ` Borislav Petkov
2022-08-25 12:13         ` Juergen Gross
2022-08-20  9:25 ` [PATCH v2 03/10] x86/mtrr: replace use_intel() with a local flag Juergen Gross
2022-08-20  9:25 ` [PATCH v2 04/10] x86: move some code out of arch/x86/kernel/cpu/mtrr Juergen Gross
2022-08-20  9:25 ` [PATCH v2 05/10] x86/mtrr: split generic_set_all() Juergen Gross
2022-08-20  9:25 ` Juergen Gross [this message]
2022-08-20  9:25 ` [PATCH v2 07/10] x86/mtrr: simplify mtrr_bp_init() Juergen Gross
2022-08-20  9:25 ` [PATCH v2 08/10] x86/mtrr: let cache_aps_delayed_init replace mtrr_aps_delayed_init Juergen Gross
2022-08-20  9:25 ` [PATCH v2 09/10] x86/mtrr: add a stop_machine() handler calling only cache_cpu_init() Juergen Gross
2022-08-20  9:25 ` [PATCH v2 10/10] x86: decouple pat and mtrr handling Juergen Gross

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