[powerpc:next-test 31/71] arch/powerpc/mm/nohash/fsl_book3e.c:126:40: error: '_PAGE_BAP_SX' undeclared

Sun Oct 31 03:40:33 AEDT 2021

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next-test
head:   81291383ffde08b23bce75e7d6b2575ce9d3475c
commit: 01116e6e98b08ab0641fa516ddafb1b1b2088e64 [31/71] powerpc/fsl_booke: Take exec flag into account when setting TLBCAMs
config: powerpc-ge_imp3a_defconfig (attached as .config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=01116e6e98b08ab0641fa516ddafb1b1b2088e64
        git remote add powerpc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
        git fetch --no-tags powerpc next-test
        git checkout 01116e6e98b08ab0641fa516ddafb1b1b2088e64
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

Note: the powerpc/next-test HEAD 81291383ffde08b23bce75e7d6b2575ce9d3475c builds fine.
      It only hurts bisectability.

All errors (new ones prefixed by >>):

   arch/powerpc/mm/nohash/fsl_book3e.c:63:15: error: no previous prototype for 'tlbcam_sz' [-Werror=missing-prototypes]
      63 | unsigned long tlbcam_sz(int idx)
         |               ^~~~~~~~~
   arch/powerpc/mm/nohash/fsl_book3e.c: In function 'settlbcam':
>> arch/powerpc/mm/nohash/fsl_book3e.c:126:40: error: '_PAGE_BAP_SX' undeclared (first use in this function)
     126 |         TLBCAM[index].MAS3 |= (flags & _PAGE_BAP_SX) ? MAS3_SX : 0;
         |                                        ^~~~~~~~~~~~
   arch/powerpc/mm/nohash/fsl_book3e.c:126:40: note: each undeclared identifier is reported only once for each function it appears in
   cc1: all warnings being treated as errors

vim +/_PAGE_BAP_SX +126 arch/powerpc/mm/nohash/fsl_book3e.c

    62	
  > 63	unsigned long tlbcam_sz(int idx)
    64	{
    65		return tlbcam_addrs[idx].limit - tlbcam_addrs[idx].start + 1;
    66	}
    67	
    68	#ifdef CONFIG_FSL_BOOKE
    69	/*
    70	 * Return PA for this VA if it is mapped by a CAM, or 0
    71	 */
    72	phys_addr_t v_block_mapped(unsigned long va)
    73	{
    74		int b;
    75		for (b = 0; b < tlbcam_index; ++b)
    76			if (va >= tlbcam_addrs[b].start && va < tlbcam_addrs[b].limit)
    77				return tlbcam_addrs[b].phys + (va - tlbcam_addrs[b].start);
    78		return 0;
    79	}
    80	
    81	/*
    82	 * Return VA for a given PA or 0 if not mapped
    83	 */
    84	unsigned long p_block_mapped(phys_addr_t pa)
    85	{
    86		int b;
    87		for (b = 0; b < tlbcam_index; ++b)
    88			if (pa >= tlbcam_addrs[b].phys
    89				&& pa < (tlbcam_addrs[b].limit-tlbcam_addrs[b].start)
    90			              +tlbcam_addrs[b].phys)
    91				return tlbcam_addrs[b].start+(pa-tlbcam_addrs[b].phys);
    92		return 0;
    93	}
    94	#endif
    95	
    96	/*
    97	 * Set up a variable-size TLB entry (tlbcam). The parameters are not checked;
    98	 * in particular size must be a power of 4 between 4k and the max supported by
    99	 * an implementation; max may further be limited by what can be represented in
   100	 * an unsigned long (for example, 32-bit implementations cannot support a 4GB
   101	 * size).
   102	 */
   103	static void settlbcam(int index, unsigned long virt, phys_addr_t phys,
   104			unsigned long size, unsigned long flags, unsigned int pid)
   105	{
   106		unsigned int tsize;
   107	
   108		tsize = __ilog2(size) - 10;
   109	
   110	#if defined(CONFIG_SMP) || defined(CONFIG_PPC_E500MC)
   111		if ((flags & _PAGE_NO_CACHE) == 0)
   112			flags |= _PAGE_COHERENT;
   113	#endif
   114	
   115		TLBCAM[index].MAS0 = MAS0_TLBSEL(1) | MAS0_ESEL(index) | MAS0_NV(index+1);
   116		TLBCAM[index].MAS1 = MAS1_VALID | MAS1_IPROT | MAS1_TSIZE(tsize) | MAS1_TID(pid);
   117		TLBCAM[index].MAS2 = virt & PAGE_MASK;
   118	
   119		TLBCAM[index].MAS2 |= (flags & _PAGE_WRITETHRU) ? MAS2_W : 0;
   120		TLBCAM[index].MAS2 |= (flags & _PAGE_NO_CACHE) ? MAS2_I : 0;
   121		TLBCAM[index].MAS2 |= (flags & _PAGE_COHERENT) ? MAS2_M : 0;
   122		TLBCAM[index].MAS2 |= (flags & _PAGE_GUARDED) ? MAS2_G : 0;
   123		TLBCAM[index].MAS2 |= (flags & _PAGE_ENDIAN) ? MAS2_E : 0;
   124	
   125		TLBCAM[index].MAS3 = (phys & MAS3_RPN) | MAS3_SR;
 > 126		TLBCAM[index].MAS3 |= (flags & _PAGE_BAP_SX) ? MAS3_SX : 0;
   127		TLBCAM[index].MAS3 |= (flags & _PAGE_RW) ? MAS3_SW : 0;
   128		if (mmu_has_feature(MMU_FTR_BIG_PHYS))
   129			TLBCAM[index].MAS7 = (u64)phys >> 32;
   130	
   131		/* Below is unlikely -- only for large user pages or similar */
   132		if (pte_user(__pte(flags))) {
   133			TLBCAM[index].MAS3 |= MAS3_UR;
   134			TLBCAM[index].MAS3 |= (flags & _PAGE_EXEC) ? MAS3_UX : 0;
   135			TLBCAM[index].MAS3 |= (flags & _PAGE_RW) ? MAS3_UW : 0;
   136		}
   137	
   138		tlbcam_addrs[index].start = virt;
   139		tlbcam_addrs[index].limit = virt + size - 1;
   140		tlbcam_addrs[index].phys = phys;
   141	}
   142	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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