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RISC-V Fixes for 6.6-rc2
* A fix to align kexec'd kernels to PMD boundries. * The T-Head dcache.cva encoding was incorrect, it has been fixed to invalidate all caches (as opposed to just the L1). -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmUEdAsTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYiRGqD/9D3uDELPxiODfpmEnocQp+l+2oa566 R3YkIdTxatuVwakfoVNe3eHiyt2Buy4eKMs8Ymg//vQUUsISZFBF3ni7Wii7Bzwb MfhMZz/8IHF+Qzwgvu9vz/t5mVRHMgdMQ3nG/sKYxCSVo9soUw6HqjidF4CfK8ty 6/gbvfn7zE7IUZi2flMrSZ03vfz7GYEoXgiydcQi5umNslzM0Fbi7WLM7Z9DHyeU f9WWU2A4U1ZFaiKJVs6B5oiT7BRluVAp+OSMbFd5S4AEURY6j8gWw2vHPs1DIRg0 lX4lYtImXupor7U9z6lUwMuDJfQ1MVBrrd3DaPEepK4FuzggJ66IlCX/PqHva4dD aPMpJfeEIjuJgkxAdKPKQNvk1S1M3TPEyeCTUt8mv8dXAcQjqv5N2m90j28pfJcl 7HMe6axVI8Tas21c6qMyJmSnKatJRJYEceR7+RS4B8Gu3IWS3qKJHYoRNNGM5bSz 1XtmFa7SbDREkhR6oD1nL7ufxLu94Sdam/dU28Hq6Eg4T8GQdHi0/HwZePY2kd6+ QZY8gHx/4348ej7HLKijAGVTdR2hO0bgPBXjG/p+NsWMW9MN207vqjfUxpPNJYOv miKSQC5qH3sTbEG4Vf28tEgKc5XBKyYmreFuNjoEqMfKmI5R1Azjs2HCc7cPcvws wn3ykSPr6JrnmA== =ES2t -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - A fix to align kexec'd kernels to PMD boundries - The T-Head dcache.cva encoding was incorrect, it has been fixed to invalidate all caches (as opposed to just the L1) * tag 'riscv-for-linus-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: errata: fix T-Head dcache.cva encoding riscv: kexec: Align the kexeced kernel entry
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commit
82210979f3
@ -105,7 +105,7 @@ asm volatile(ALTERNATIVE( \
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* | 31 - 25 | 24 - 20 | 19 - 15 | 14 - 12 | 11 - 7 | 6 - 0 |
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* 0000001 01001 rs1 000 00000 0001011
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* dcache.cva rs1 (clean, virtual address)
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* 0000001 00100 rs1 000 00000 0001011
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* 0000001 00101 rs1 000 00000 0001011
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*
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* dcache.cipa rs1 (clean then invalidate, physical address)
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* | 31 - 25 | 24 - 20 | 19 - 15 | 14 - 12 | 11 - 7 | 6 - 0 |
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@ -118,7 +118,7 @@ asm volatile(ALTERNATIVE( \
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* 0000000 11001 00000 000 00000 0001011
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*/
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#define THEAD_inval_A0 ".long 0x0265000b"
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#define THEAD_clean_A0 ".long 0x0245000b"
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#define THEAD_clean_A0 ".long 0x0255000b"
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#define THEAD_flush_A0 ".long 0x0275000b"
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#define THEAD_SYNC_S ".long 0x0190000b"
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@ -98,7 +98,13 @@ static int elf_find_pbase(struct kimage *image, unsigned long kernel_len,
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kbuf.image = image;
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kbuf.buf_min = lowest_paddr;
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kbuf.buf_max = ULONG_MAX;
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kbuf.buf_align = PAGE_SIZE;
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/*
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* Current riscv boot protocol requires 2MB alignment for
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* RV64 and 4MB alignment for RV32
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*
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*/
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kbuf.buf_align = PMD_SIZE;
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kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
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kbuf.memsz = ALIGN(kernel_len, PAGE_SIZE);
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kbuf.top_down = false;
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