linux-kernel - [PATCH 2/2] powerpc: Remove ucache

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Message-Id: <288b6048597c0fdc495b203fda57a223d89499d2.1605589460.git.christophe.leroy@csgroup.eu>
Date:   Tue, 17 Nov 2020 05:07:59 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 2/2] powerpc: Remove ucache_bsize

ppc601 and e200 were the users of ucache_bsize.
ppc601 and e200 are now gone.

Remove ucache_bsize.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/include/asm/elf.h     | 2 +-
 arch/powerpc/kernel/setup-common.c | 4 ----
 arch/powerpc/kernel/setup_32.c     | 1 -
 3 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 53ed2ca40151..900b8d7fdffa 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -168,7 +168,7 @@ do {									\
 	/* Cache size items */						\
 	NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize);			\
 	NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize);			\
-	NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize);			\
+	NEW_AUX_ENT(AT_UCACHEBSIZE, 0);					\
 	VDSO_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso_base);	\
 	ARCH_DLINFO_CACHE_GEOMETRY;					\
 } while (0)
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 808ec9fab605..c23449a93fef 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -90,8 +90,6 @@ EXPORT_SYMBOL_GPL(boot_cpuid);
  */
 int dcache_bsize;
 int icache_bsize;
-int ucache_bsize;
-
 
 unsigned long klimit = (unsigned long) _end;
 
@@ -802,8 +800,6 @@ static __init void print_system_info(void)
 
 	pr_info("dcache_bsize      = 0x%x\n", dcache_bsize);
 	pr_info("icache_bsize      = 0x%x\n", icache_bsize);
-	if (ucache_bsize != 0)
-		pr_info("ucache_bsize      = 0x%x\n", ucache_bsize);
 
 	pr_info("cpu_features      = 0x%016lx\n", cur_cpu_spec->cpu_features);
 	pr_info("  possible        = 0x%016lx\n",
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 416e2c7a8b0a..8ba49a6bf515 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -222,5 +222,4 @@ __init void initialize_cache_info(void)
 	 */
 	dcache_bsize = cur_cpu_spec->dcache_bsize;
 	icache_bsize = cur_cpu_spec->icache_bsize;
-	ucache_bsize = 0;
 }
-- 
2.25.0