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From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, x86@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 v4 02/16] x86/mtrr: remove unused cyrix_set_all() function
Date: Tue,  4 Oct 2022 10:10:09 +0200	[thread overview]
Message-ID: <20221004081023.32402-3-jgross@suse.com> (raw)
In-Reply-To: <20221004081023.32402-1-jgross@suse.com>

The Cyrix CPU specific MTRR function cyrix_set_all() will never be
called, as the struct mtrr_ops set_all() callback will only be called
in the use_intel() case, which would require the use_intel_if member
of struct mtrr_ops to be set, which isn't the case for Cyrix.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
V2:
- new patch
---
 arch/x86/kernel/cpu/mtrr/cyrix.c | 34 --------------------------------
 1 file changed, 34 deletions(-)

diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c
index ca670919b561..c77d3b0a5bf2 100644
--- a/arch/x86/kernel/cpu/mtrr/cyrix.c
+++ b/arch/x86/kernel/cpu/mtrr/cyrix.c
@@ -234,42 +234,8 @@ static void cyrix_set_arr(unsigned int reg, unsigned long base,
 	post_set();
 }
 
-typedef struct {
-	unsigned long	base;
-	unsigned long	size;
-	mtrr_type	type;
-} arr_state_t;
-
-static arr_state_t arr_state[8] = {
-	{0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL},
-	{0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}
-};
-
-static unsigned char ccr_state[7] = { 0, 0, 0, 0, 0, 0, 0 };
-
-static void cyrix_set_all(void)
-{
-	int i;
-
-	prepare_set();
-
-	/* the CCRs are not contiguous */
-	for (i = 0; i < 4; i++)
-		setCx86(CX86_CCR0 + i, ccr_state[i]);
-	for (; i < 7; i++)
-		setCx86(CX86_CCR4 + i, ccr_state[i]);
-
-	for (i = 0; i < 8; i++) {
-		cyrix_set_arr(i, arr_state[i].base,
-			      arr_state[i].size, arr_state[i].type);
-	}
-
-	post_set();
-}
-
 static const struct mtrr_ops cyrix_mtrr_ops = {
 	.vendor            = X86_VENDOR_CYRIX,
-	.set_all	   = cyrix_set_all,
 	.set               = cyrix_set_arr,
 	.get               = cyrix_get_arr,
 	.get_free_region   = cyrix_get_free_region,
-- 
2.35.3


  parent reply	other threads:[~2022-10-04  8:12 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-04  8:10 [PATCH v4 00/16] x86: make pat and mtrr independent from each other Juergen Gross
2022-10-04  8:10 ` [PATCH v4 01/16] x86/mtrr: add comment for set_mtrr_state() serialization Juergen Gross
2022-10-04  8:10 ` Juergen Gross [this message]
2022-10-20 14:13   ` [tip: x86/cpu] x86/mtrr: Remove unused cyrix_set_all() function tip-bot2 for Juergen Gross
2022-10-04  8:10 ` [PATCH v4 03/16] x86/mtrr: replace use_intel() with a local flag Juergen Gross
2022-10-21 17:19   ` Borislav Petkov
2022-10-21 18:05     ` Juergen Gross
2022-10-21 18:10       ` Borislav Petkov
2022-10-04  8:10 ` [PATCH v4 04/16] x86/mtrr: rename prepare_set() and post_set() Juergen Gross
2022-10-04  8:10 ` [PATCH v4 05/16] x86/mtrr: split MTRR specific handling from cache dis/enabling Juergen Gross
2022-10-26  9:24   ` Borislav Petkov
2022-10-26 11:42     ` Juergen Gross
2022-10-04  8:10 ` [PATCH v4 06/16] x86: move some code out of arch/x86/kernel/cpu/mtrr Juergen Gross
2022-10-04  8:10 ` [PATCH v4 07/16] x86/mtrr: split generic_set_all() Juergen Gross
2022-10-26 10:37   ` Borislav Petkov
2022-10-26 11:43     ` Juergen Gross
2022-10-26 12:10       ` Borislav Petkov
2022-10-04  8:10 ` [PATCH v4 08/16] x86/mtrr: remove set_all callback from struct mtrr_ops Juergen Gross
2022-10-27  9:18   ` Borislav Petkov
2022-10-04  8:10 ` [PATCH v4 09/16] x86/mtrr: simplify mtrr_bp_init() Juergen Gross
2022-10-27  9:32   ` Borislav Petkov
2022-10-04  8:10 ` [PATCH v4 10/16] x86/mtrr: get rid of mtrr_enabled bool Juergen Gross
2022-10-04  8:10 ` [PATCH v4 11/16] x86/mtrr: let cache_aps_delayed_init replace mtrr_aps_delayed_init Juergen Gross
2022-10-27 12:18   ` Borislav Petkov
2022-10-27 13:08     ` Juergen Gross
2022-10-04  8:10 ` [PATCH v4 12/16] x86/mtrr: add a stop_machine() handler calling only cache_cpu_init() Juergen Gross
2022-10-29 10:07   ` Borislav Petkov
2022-10-04  8:10 ` [PATCH v4 13/16] x86: decouple pat and mtrr handling Juergen Gross
2022-10-29 12:15   ` Borislav Petkov
2022-10-04  8:10 ` [PATCH v4 14/16] x86: switch cache_ap_init() to hotplug callback Juergen Gross
2022-10-04  8:10 ` [PATCH v4 15/16] x86: do MTRR/PAT setup on all secondary CPUs in parallel Juergen Gross
2022-10-04  8:10 ` [PATCH v4 16/16] x86/mtrr: simplify mtrr_ops initialization Juergen Gross
2022-10-30 12:06   ` Borislav Petkov
2022-10-30 15:05     ` Juergen Gross
2022-10-30 16:39       ` Borislav Petkov
2022-10-30 17:48         ` Borislav Petkov
2022-11-01  9:48         ` Juergen Gross
2022-11-01 10:02           ` Borislav Petkov
2022-10-19  7:18 ` [PATCH v4 00/16] x86: make pat and mtrr independent from each other Juergen Gross

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