diff mbox series

[v2,21/34] arm64: Convert various functions to use ptdescs

Message ID 20230501192829.17086-22-vishal.moola@gmail.com (mailing list archive)
State Superseded
Headers show
Series Split ptdesc from struct page | expand

Commit Message

Vishal Moola May 1, 2023, 7:28 p.m. UTC 
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
---
 arch/arm64/include/asm/tlb.h | 14 ++++++++------
 arch/arm64/mm/mmu.c          |  7 ++++---
 2 files changed, 12 insertions(+), 9 deletions(-)

Comments

kernel test robot May 2, 2023, 1:48 a.m. UTC | #1 
Hi Vishal,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master next-20230428]
[cannot apply to s390/features powerpc/next powerpc/fixes geert-m68k/for-next geert-m68k/for-linus v6.3]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Vishal-Moola-Oracle/mm-Add-PAGE_TYPE_OP-folio-functions/20230502-033042
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20230501192829.17086-22-vishal.moola%40gmail.com
patch subject: [PATCH v2 21/34] arm64: Convert various functions to use ptdescs
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20230502/202305020914.OGRWcEG1-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/8e9481b63b5773d7c914836dcd7fbec2449902bc
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Vishal-Moola-Oracle/mm-Add-PAGE_TYPE_OP-folio-functions/20230502-033042
        git checkout 8e9481b63b5773d7c914836dcd7fbec2449902bc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305020914.OGRWcEG1-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/build_bug.h:5,
                    from include/linux/bits.h:21,
                    from include/linux/bitops.h:6,
                    from arch/arm64/include/asm/cache.h:39,
                    from include/linux/cache.h:6,
                    from arch/arm64/mm/mmu.c:9:
   arch/arm64/mm/mmu.c: In function 'pgd_pgtable_alloc':
>> arch/arm64/mm/mmu.c:440:24: error: invalid use of void expression
     440 |                 BUG_ON(!ptdesc_pte_dtor(ptdesc));
         |                        ^
   include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
      78 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   arch/arm64/mm/mmu.c:440:17: note: in expansion of macro 'BUG_ON'
     440 |                 BUG_ON(!ptdesc_pte_dtor(ptdesc));
         |                 ^~~~~~
   arch/arm64/mm/mmu.c:442:24: error: invalid use of void expression
     442 |                 BUG_ON(!ptdesc_pte_dtor(ptdesc));
         |                        ^
   include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
      78 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   arch/arm64/mm/mmu.c:442:17: note: in expansion of macro 'BUG_ON'
     442 |                 BUG_ON(!ptdesc_pte_dtor(ptdesc));
         |                 ^~~~~~


vim +440 arch/arm64/mm/mmu.c

   425	
   426	static phys_addr_t pgd_pgtable_alloc(int shift)
   427	{
   428		phys_addr_t pa = __pgd_pgtable_alloc(shift);
   429		struct ptdesc *ptdesc = page_ptdesc(phys_to_page(pa));
   430	
   431		/*
   432		 * Call proper page table ctor in case later we need to
   433		 * call core mm functions like apply_to_page_range() on
   434		 * this pre-allocated page table.
   435		 *
   436		 * We don't select ARCH_ENABLE_SPLIT_PMD_PTLOCK if pmd is
   437		 * folded, and if so ptdesc_pte_dtor() becomes nop.
   438		 */
   439		if (shift == PAGE_SHIFT)
 > 440			BUG_ON(!ptdesc_pte_dtor(ptdesc));
   441		else if (shift == PMD_SHIFT)
   442			BUG_ON(!ptdesc_pte_dtor(ptdesc));
   443	
   444		return pa;
   445	}
   446
kernel test robot May 2, 2023, 2:21 a.m. UTC | #2 
Hi Vishal,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master next-20230428]
[cannot apply to s390/features powerpc/next powerpc/fixes geert-m68k/for-next geert-m68k/for-linus v6.3]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Vishal-Moola-Oracle/mm-Add-PAGE_TYPE_OP-folio-functions/20230502-033042
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20230501192829.17086-22-vishal.moola%40gmail.com
patch subject: [PATCH v2 21/34] arm64: Convert various functions to use ptdescs
config: arm64-randconfig-r023-20230430 (https://download.01.org/0day-ci/archive/20230502/202305021038.c9jfVDsv-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project b1465cd49efcbc114a75220b153f5a055ce7911f)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/8e9481b63b5773d7c914836dcd7fbec2449902bc
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Vishal-Moola-Oracle/mm-Add-PAGE_TYPE_OP-folio-functions/20230502-033042
        git checkout 8e9481b63b5773d7c914836dcd7fbec2449902bc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305021038.c9jfVDsv-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/arm64/mm/mmu.c:440:10: error: invalid argument type 'void' to unary expression
                   BUG_ON(!ptdesc_pte_dtor(ptdesc));
                          ^~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/bug.h:71:45: note: expanded from macro 'BUG_ON'
   #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                               ^~~~~~~~~
   include/linux/compiler.h:78:42: note: expanded from macro 'unlikely'
   # define unlikely(x)    __builtin_expect(!!(x), 0)
                                               ^
   arch/arm64/mm/mmu.c:442:10: error: invalid argument type 'void' to unary expression
                   BUG_ON(!ptdesc_pte_dtor(ptdesc));
                          ^~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/bug.h:71:45: note: expanded from macro 'BUG_ON'
   #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                               ^~~~~~~~~
   include/linux/compiler.h:78:42: note: expanded from macro 'unlikely'
   # define unlikely(x)    __builtin_expect(!!(x), 0)
                                               ^
   2 errors generated.


vim +/void +440 arch/arm64/mm/mmu.c

   425	
   426	static phys_addr_t pgd_pgtable_alloc(int shift)
   427	{
   428		phys_addr_t pa = __pgd_pgtable_alloc(shift);
   429		struct ptdesc *ptdesc = page_ptdesc(phys_to_page(pa));
   430	
   431		/*
   432		 * Call proper page table ctor in case later we need to
   433		 * call core mm functions like apply_to_page_range() on
   434		 * this pre-allocated page table.
   435		 *
   436		 * We don't select ARCH_ENABLE_SPLIT_PMD_PTLOCK if pmd is
   437		 * folded, and if so ptdesc_pte_dtor() becomes nop.
   438		 */
   439		if (shift == PAGE_SHIFT)
 > 440			BUG_ON(!ptdesc_pte_dtor(ptdesc));
   441		else if (shift == PMD_SHIFT)
   442			BUG_ON(!ptdesc_pte_dtor(ptdesc));
   443	
   444		return pa;
   445	}
   446
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h
index c995d1f4594f..6cb70c247e30 100644
--- a/arch/arm64/include/asm/tlb.h
+++ b/arch/arm64/include/asm/tlb.h
@@ -75,18 +75,20 @@  static inline void tlb_flush(struct mmu_gather *tlb)
 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
 				  unsigned long addr)
 {
-	pgtable_pte_page_dtor(pte);
-	tlb_remove_table(tlb, pte);
+	struct ptdesc *ptdesc = page_ptdesc(pte);
+
+	ptdesc_pte_dtor(ptdesc);
+	tlb_remove_ptdesc(tlb, ptdesc);
 }
 
 #if CONFIG_PGTABLE_LEVELS > 2
 static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
 				  unsigned long addr)
 {
-	struct page *page = virt_to_page(pmdp);
+	struct ptdesc *ptdesc = virt_to_ptdesc(pmdp);
 
-	pgtable_pmd_page_dtor(page);
-	tlb_remove_table(tlb, page);
+	ptdesc_pmd_dtor(ptdesc);
+	tlb_remove_ptdesc(tlb, ptdesc);
 }
 #endif
 
@@ -94,7 +96,7 @@  static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
 static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pudp,
 				  unsigned long addr)
 {
-	tlb_remove_table(tlb, virt_to_page(pudp));
+	tlb_remove_ptdesc(tlb, virt_to_ptdesc(pudp));
 }
 #endif
 
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index af6bc8403ee4..5ba005fd607e 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -426,6 +426,7 @@  static phys_addr_t __pgd_pgtable_alloc(int shift)
 static phys_addr_t pgd_pgtable_alloc(int shift)
 {
 	phys_addr_t pa = __pgd_pgtable_alloc(shift);
+	struct ptdesc *ptdesc = page_ptdesc(phys_to_page(pa));
 
 	/*
 	 * Call proper page table ctor in case later we need to
@@ -433,12 +434,12 @@  static phys_addr_t pgd_pgtable_alloc(int shift)
 	 * this pre-allocated page table.
 	 *
 	 * We don't select ARCH_ENABLE_SPLIT_PMD_PTLOCK if pmd is
-	 * folded, and if so pgtable_pmd_page_ctor() becomes nop.
+	 * folded, and if so ptdesc_pte_dtor() becomes nop.
 	 */
 	if (shift == PAGE_SHIFT)
-		BUG_ON(!pgtable_pte_page_ctor(phys_to_page(pa)));
+		BUG_ON(!ptdesc_pte_dtor(ptdesc));
 	else if (shift == PMD_SHIFT)
-		BUG_ON(!pgtable_pmd_page_ctor(phys_to_page(pa)));
+		BUG_ON(!ptdesc_pte_dtor(ptdesc));
 
 	return pa;
 }