[PATCH v5 13/15] powerpc: use CONFIG_EXECMEM instead of CONFIG_MODULES where appropriate

2024-04-22 Thread Mike Rapoport
From: "Mike Rapoport (IBM)" 

There are places where CONFIG_MODULES guards the code that depends on
memory allocation being done with module_alloc().

Replace CONFIG_MODULES with CONFIG_EXECMEM in such places.

Signed-off-by: Mike Rapoport (IBM) 
---
 arch/powerpc/Kconfig | 2 +-
 arch/powerpc/include/asm/kasan.h | 2 +-
 arch/powerpc/kernel/head_8xx.S   | 4 ++--
 arch/powerpc/kernel/head_book3s_32.S | 6 +++---
 arch/powerpc/lib/code-patching.c | 2 +-
 arch/powerpc/mm/book3s32/mmu.c   | 2 +-
 6 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1c4be3373686..2e586733a464 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -285,7 +285,7 @@ config PPC
select IOMMU_HELPER if PPC64
select IRQ_DOMAIN
select IRQ_FORCED_THREADING
-   select KASAN_VMALLOCif KASAN && MODULES
+   select KASAN_VMALLOCif KASAN && EXECMEM
select LOCK_MM_AND_FIND_VMA
select MMU_GATHER_PAGE_SIZE
select MMU_GATHER_RCU_TABLE_FREE
diff --git a/arch/powerpc/include/asm/kasan.h b/arch/powerpc/include/asm/kasan.h
index 365d2720097c..b5bbb94c51f6 100644
--- a/arch/powerpc/include/asm/kasan.h
+++ b/arch/powerpc/include/asm/kasan.h
@@ -19,7 +19,7 @@
 
 #define KASAN_SHADOW_SCALE_SHIFT   3
 
-#if defined(CONFIG_MODULES) && defined(CONFIG_PPC32)
+#if defined(CONFIG_EXECMEM) && defined(CONFIG_PPC32)
 #define KASAN_KERN_START   ALIGN_DOWN(PAGE_OFFSET - SZ_256M, SZ_256M)
 #else
 #define KASAN_KERN_START   PAGE_OFFSET
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 647b0b445e89..edc479a7c2bc 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -199,12 +199,12 @@ instruction_counter:
mfspr   r10, SPRN_SRR0  /* Get effective address of fault */
INVALIDATE_ADJACENT_PAGES_CPU15(r10, r11)
mtspr   SPRN_MD_EPN, r10
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
mfcrr11
compare_to_kernel_boundary r10, r10
 #endif
mfspr   r10, SPRN_M_TWB /* Get level 1 table */
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
blt+3f
rlwinm  r10, r10, 0, 20, 31
orisr10, r10, (swapper_pg_dir - PAGE_OFFSET)@ha
diff --git a/arch/powerpc/kernel/head_book3s_32.S 
b/arch/powerpc/kernel/head_book3s_32.S
index c1d89764dd22..57196883a00e 100644
--- a/arch/powerpc/kernel/head_book3s_32.S
+++ b/arch/powerpc/kernel/head_book3s_32.S
@@ -419,14 +419,14 @@ InstructionTLBMiss:
  */
/* Get PTE (linux-style) and check access */
mfspr   r3,SPRN_IMISS
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
lis r1, TASK_SIZE@h /* check if kernel address */
cmplw   0,r1,r3
 #endif
mfspr   r2, SPRN_SDR1
li  r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
rlwinm  r2, r2, 28, 0xf000
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
li  r0, 3
bgt-112f
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha   /* if kernel address, 
use */
@@ -442,7 +442,7 @@ InstructionTLBMiss:
andc.   r1,r1,r2/* check access & ~permission */
bne-InstructionAddressInvalid /* return if access not permitted */
/* Convert linux-style PTE to low word of PPC-style PTE */
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
rlwimi  r2, r0, 0, 31, 31   /* userspace ? -> PP lsb */
 #endif
ori r1, r1, 0xe06   /* clear out reserved bits */
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
index c6ab46156cda..7af791446ddf 100644
--- a/arch/powerpc/lib/code-patching.c
+++ b/arch/powerpc/lib/code-patching.c
@@ -225,7 +225,7 @@ void __init poking_init(void)
 
 static unsigned long get_patch_pfn(void *addr)
 {
-   if (IS_ENABLED(CONFIG_MODULES) && is_vmalloc_or_module_addr(addr))
+   if (IS_ENABLED(CONFIG_EXECMEM) && is_vmalloc_or_module_addr(addr))
return vmalloc_to_pfn(addr);
else
return __pa_symbol(addr) >> PAGE_SHIFT;
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c
index 100f999871bc..625fe7d08e06 100644
--- a/arch/powerpc/mm/book3s32/mmu.c
+++ b/arch/powerpc/mm/book3s32/mmu.c
@@ -184,7 +184,7 @@ unsigned long __init mmu_mapin_ram(unsigned long base, 
unsigned long top)
 
 static bool is_module_segment(unsigned long addr)
 {
-   if (!IS_ENABLED(CONFIG_MODULES))
+   if (!IS_ENABLED(CONFIG_EXECMEM))
return false;
if (addr < ALIGN_DOWN(MODULES_VADDR, SZ_256M))
return false;
-- 
2.43.0




[PATCH v5 13/15] powerpc: use CONFIG_EXECMEM instead of CONFIG_MODULES where appropriate

2024-04-22 Thread Mike Rapoport
From: "Mike Rapoport (IBM)" 

There are places where CONFIG_MODULES guards the code that depends on
memory allocation being done with module_alloc().

Replace CONFIG_MODULES with CONFIG_EXECMEM in such places.

Signed-off-by: Mike Rapoport (IBM) 
---
 arch/powerpc/Kconfig | 2 +-
 arch/powerpc/include/asm/kasan.h | 2 +-
 arch/powerpc/kernel/head_8xx.S   | 4 ++--
 arch/powerpc/kernel/head_book3s_32.S | 6 +++---
 arch/powerpc/lib/code-patching.c | 2 +-
 arch/powerpc/mm/book3s32/mmu.c   | 2 +-
 6 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1c4be3373686..2e586733a464 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -285,7 +285,7 @@ config PPC
select IOMMU_HELPER if PPC64
select IRQ_DOMAIN
select IRQ_FORCED_THREADING
-   select KASAN_VMALLOCif KASAN && MODULES
+   select KASAN_VMALLOCif KASAN && EXECMEM
select LOCK_MM_AND_FIND_VMA
select MMU_GATHER_PAGE_SIZE
select MMU_GATHER_RCU_TABLE_FREE
diff --git a/arch/powerpc/include/asm/kasan.h b/arch/powerpc/include/asm/kasan.h
index 365d2720097c..b5bbb94c51f6 100644
--- a/arch/powerpc/include/asm/kasan.h
+++ b/arch/powerpc/include/asm/kasan.h
@@ -19,7 +19,7 @@
 
 #define KASAN_SHADOW_SCALE_SHIFT   3
 
-#if defined(CONFIG_MODULES) && defined(CONFIG_PPC32)
+#if defined(CONFIG_EXECMEM) && defined(CONFIG_PPC32)
 #define KASAN_KERN_START   ALIGN_DOWN(PAGE_OFFSET - SZ_256M, SZ_256M)
 #else
 #define KASAN_KERN_START   PAGE_OFFSET
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 647b0b445e89..edc479a7c2bc 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -199,12 +199,12 @@ instruction_counter:
mfspr   r10, SPRN_SRR0  /* Get effective address of fault */
INVALIDATE_ADJACENT_PAGES_CPU15(r10, r11)
mtspr   SPRN_MD_EPN, r10
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
mfcrr11
compare_to_kernel_boundary r10, r10
 #endif
mfspr   r10, SPRN_M_TWB /* Get level 1 table */
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
blt+3f
rlwinm  r10, r10, 0, 20, 31
orisr10, r10, (swapper_pg_dir - PAGE_OFFSET)@ha
diff --git a/arch/powerpc/kernel/head_book3s_32.S 
b/arch/powerpc/kernel/head_book3s_32.S
index c1d89764dd22..57196883a00e 100644
--- a/arch/powerpc/kernel/head_book3s_32.S
+++ b/arch/powerpc/kernel/head_book3s_32.S
@@ -419,14 +419,14 @@ InstructionTLBMiss:
  */
/* Get PTE (linux-style) and check access */
mfspr   r3,SPRN_IMISS
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
lis r1, TASK_SIZE@h /* check if kernel address */
cmplw   0,r1,r3
 #endif
mfspr   r2, SPRN_SDR1
li  r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
rlwinm  r2, r2, 28, 0xf000
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
li  r0, 3
bgt-112f
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha   /* if kernel address, 
use */
@@ -442,7 +442,7 @@ InstructionTLBMiss:
andc.   r1,r1,r2/* check access & ~permission */
bne-InstructionAddressInvalid /* return if access not permitted */
/* Convert linux-style PTE to low word of PPC-style PTE */
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
rlwimi  r2, r0, 0, 31, 31   /* userspace ? -> PP lsb */
 #endif
ori r1, r1, 0xe06   /* clear out reserved bits */
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
index c6ab46156cda..7af791446ddf 100644
--- a/arch/powerpc/lib/code-patching.c
+++ b/arch/powerpc/lib/code-patching.c
@@ -225,7 +225,7 @@ void __init poking_init(void)
 
 static unsigned long get_patch_pfn(void *addr)
 {
-   if (IS_ENABLED(CONFIG_MODULES) && is_vmalloc_or_module_addr(addr))
+   if (IS_ENABLED(CONFIG_EXECMEM) && is_vmalloc_or_module_addr(addr))
return vmalloc_to_pfn(addr);
else
return __pa_symbol(addr) >> PAGE_SHIFT;
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c
index 100f999871bc..625fe7d08e06 100644
--- a/arch/powerpc/mm/book3s32/mmu.c
+++ b/arch/powerpc/mm/book3s32/mmu.c
@@ -184,7 +184,7 @@ unsigned long __init mmu_mapin_ram(unsigned long base, 
unsigned long top)
 
 static bool is_module_segment(unsigned long addr)
 {
-   if (!IS_ENABLED(CONFIG_MODULES))
+   if (!IS_ENABLED(CONFIG_EXECMEM))
return false;
if (addr < ALIGN_DOWN(MODULES_VADDR, SZ_256M))
return false;
-- 
2.43.0