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authorChristophe Leroy <christophe.leroy@c-s.fr>2019-04-26 18:36:39 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2019-05-02 17:20:26 +0200
commite4dccf9092ab48a6f902003b9558c0e45d0e849a (patch)
tree19c90a014b0bc05fe19b996e95b9f1fb23c30fc0
parentpowerpc/32s: don't try to print hash table address. (diff)
downloadlinux-e4dccf9092ab48a6f902003b9558c0e45d0e849a.tar.xz
linux-e4dccf9092ab48a6f902003b9558c0e45d0e849a.zip
powerpc/mm: print hash info in a helper
Reduce #ifdef mess by defining a helper to print hash info at startup. In the meantime, remove the display of hash table address to reduce leak of non necessary information. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
-rw-r--r--arch/powerpc/kernel/setup-common.c22
-rw-r--r--arch/powerpc/mm/book3s32/mmu.c9
-rw-r--r--arch/powerpc/mm/book3s64/hash_utils.c13
-rw-r--r--arch/powerpc/mm/mmu_decl.h5
4 files changed, 26 insertions, 23 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 91d2c6970bdb..3f8805d3c0c9 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -800,12 +800,6 @@ void arch_setup_pdev_archdata(struct platform_device *pdev)
static __init void print_system_info(void)
{
pr_info("-----------------------------------------------------\n");
-#ifdef CONFIG_PPC_BOOK3S_64
- pr_info("ppc64_pft_size = 0x%llx\n", ppc64_pft_size);
-#endif
-#ifdef CONFIG_PPC_BOOK3S_32
- pr_info("Hash_size = 0x%lx\n", Hash_size);
-#endif
pr_info("phys_mem_size = 0x%llx\n",
(unsigned long long)memblock_phys_mem_size());
@@ -827,21 +821,7 @@ static __init void print_system_info(void)
pr_info("firmware_features = 0x%016lx\n", powerpc_firmware_features);
#endif
-#ifdef CONFIG_PPC_BOOK3S_64
- if (htab_address)
- pr_info("htab_address = 0x%p\n", htab_address);
- if (htab_hash_mask)
- pr_info("htab_hash_mask = 0x%lx\n", htab_hash_mask);
- pr_info("kernel vmalloc start = 0x%lx\n", KERN_VIRT_START);
- pr_info("kernel IO start = 0x%lx\n", KERN_IO_START);
- pr_info("kernel vmemmap start = 0x%lx\n", (unsigned long)vmemmap);
-#endif
-#ifdef CONFIG_PPC_BOOK3S_32
- if (Hash)
- pr_info("Hash = 0x%p\n", Hash);
- if (Hash_mask)
- pr_info("Hash_mask = 0x%lx\n", Hash_mask);
-#endif
+ print_system_hash_info();
if (PHYSICAL_START > 0)
pr_info("physical_start = 0x%llx\n",
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c
index 131cd3acb6b8..615f78d35536 100644
--- a/arch/powerpc/mm/book3s32/mmu.c
+++ b/arch/powerpc/mm/book3s32/mmu.c
@@ -37,7 +37,7 @@
#include <mm/mmu_decl.h>
struct hash_pte *Hash;
-unsigned long Hash_size, Hash_mask;
+static unsigned long Hash_size, Hash_mask;
unsigned long _SDR1;
static unsigned int hash_mb, hash_mb2;
@@ -401,6 +401,13 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
memblock_set_current_limit(min_t(u64, first_memblock_size, 0x10000000));
}
+void __init print_system_hash_info(void)
+{
+ pr_info("Hash_size = 0x%lx\n", Hash_size);
+ if (Hash_mask)
+ pr_info("Hash_mask = 0x%lx\n", Hash_mask);
+}
+
#ifdef CONFIG_PPC_KUEP
void __init setup_kuep(bool disabled)
{
diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c
index f0ce860a69ac..919a861a8ec0 100644
--- a/arch/powerpc/mm/book3s64/hash_utils.c
+++ b/arch/powerpc/mm/book3s64/hash_utils.c
@@ -66,6 +66,8 @@
#include <asm/pte-walk.h>
#include <asm/asm-prototypes.h>
+#include <mm/mmu_decl.h>
+
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
#else
@@ -1945,3 +1947,14 @@ static int __init hash64_debugfs(void)
}
machine_device_initcall(pseries, hash64_debugfs);
#endif /* CONFIG_DEBUG_FS */
+
+void __init print_system_hash_info(void)
+{
+ pr_info("ppc64_pft_size = 0x%llx\n", ppc64_pft_size);
+
+ if (htab_hash_mask)
+ pr_info("htab_hash_mask = 0x%lx\n", htab_hash_mask);
+ pr_info("kernel vmalloc start = 0x%lx\n", KERN_VIRT_START);
+ pr_info("kernel IO start = 0x%lx\n", KERN_IO_START);
+ pr_info("kernel vmemmap start = 0x%lx\n", (unsigned long)vmemmap);
+}
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index 7b8833d695d1..7bac0aa2026a 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -83,6 +83,8 @@ static inline void _tlbivax_bcast(unsigned long address, unsigned int pid,
}
#endif
+static inline void print_system_hash_info(void) {}
+
#else /* CONFIG_PPC_MMU_NOHASH */
extern void hash_preload(struct mm_struct *mm, unsigned long ea,
@@ -92,6 +94,8 @@ extern void hash_preload(struct mm_struct *mm, unsigned long ea,
extern void _tlbie(unsigned long address);
extern void _tlbia(void);
+void print_system_hash_info(void);
+
#endif /* CONFIG_PPC_MMU_NOHASH */
#ifdef CONFIG_PPC32
@@ -105,7 +109,6 @@ extern unsigned int rtas_data, rtas_size;
struct hash_pte;
extern struct hash_pte *Hash;
-extern unsigned long Hash_size, Hash_mask;
extern u8 early_hash[];
#endif /* CONFIG_PPC32 */