^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Early kernel startup code for Hexagon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <asm/asm-offsets.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/mem-layout.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/vm_mmu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/hexagon_vm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define SEGTABLE_ENTRIES #0x0e0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) __INIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) ENTRY(stext)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * VMM will already have set up true vector page, MMU, etc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * To set up initial kernel identity map, we have to pass
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * the VMM a pointer to some canonical page tables. In
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * this implementation, we're assuming that we've got
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * them precompiled. Generate value in R24, as we'll need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * it again shortly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) r24.L = #LO(swapper_pg_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) r24.H = #HI(swapper_pg_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * Symbol is kernel segment address, but we need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * the logical/physical address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) r25 = pc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) r2.h = #0xffc0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) r2.l = #0x0000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) r25 = and(r2,r25); /* R25 holds PHYS_OFFSET now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) r1.h = #HI(PAGE_OFFSET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) r1.l = #LO(PAGE_OFFSET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) r24 = sub(r24,r1); /* swapper_pg_dir - PAGE_OFFSET */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) r24 = add(r24,r25); /* + PHYS_OFFSET */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) r0 = r24; /* aka __pa(swapper_pg_dir) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * Initialize page dir to make the virtual and physical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * addresses where the kernel was loaded be identical.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * Done in 4MB chunks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define PTE_BITS ( __HVM_PTE_R | __HVM_PTE_W | __HVM_PTE_X \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) | __HEXAGON_C_WB_L2 << 6 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) | __HVM_PDE_S_4MB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * Get number of VA=PA entries; only really needed for jump
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * to hyperspace; gets blown away immediately after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) r1.l = #LO(_end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) r2.l = #LO(stext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) r3 = #1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) r1.h = #HI(_end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) r2.h = #HI(stext);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) r3 = asl(r3, #22);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) r1 = sub(r1, r2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) r3 = add(r3, #-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) } /* r1 = _end - stext */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) r1 = add(r1, r3); /* + (4M-1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) r26 = lsr(r1, #22); /* / 4M = # of entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) r1 = r25;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) r2.h = #0xffc0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) r2.l = #0x0000; /* round back down to 4MB boundary */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) r1 = and(r1,r2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) r2 = lsr(r1, #22) /* 4MB page number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) r2 = asl(r2, #2) /* times sizeof(PTE) (4bytes) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) r0 = add(r0,r2) /* r0 = address of correct PTE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) r2 = #PTE_BITS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) r1 = add(r1,r2) /* r1 = 4MB PTE for the first entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) r2.h = #0x0040
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) r2.l = #0x0000 /* 4MB increments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) loop0(1f,r26);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) memw(r0 ++ #4) = r1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) { r1 = add(r1, r2); } :endloop0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* Also need to overwrite the initial 0xc0000000 entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /* PAGE_OFFSET >> (4MB shift - 4 bytes per entry shift) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) R1.H = #HI(PAGE_OFFSET >> (22 - 2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) R1.L = #LO(PAGE_OFFSET >> (22 - 2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) r0 = add(r1, r24); /* advance to 0xc0000000 entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) r1 = r25;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) r2.h = #0xffc0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) r2.l = #0x0000; /* round back down to 4MB boundary */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) r1 = and(r1,r2); /* for huge page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) r2 = #PTE_BITS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) r1 = add(r1,r2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) r2.h = #0x0040
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) r2.l = #0x0000 /* 4MB increments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) loop0(1f,SEGTABLE_ENTRIES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) memw(r0 ++ #4) = r1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) { r1 = add(r1,r2); } :endloop0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) r0 = r24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * The subroutine wrapper around the virtual instruction touches
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * no memory, so we should be able to use it even here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * Note that in this version, R1 and R2 get "clobbered"; see
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * vm_ops.S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) r1 = #VM_TRANS_TYPE_TABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) call __vmnewmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /* Jump into virtual address range. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) r31.h = #hi(__head_s_vaddr_target)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) r31.l = #lo(__head_s_vaddr_target)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) jumpr r31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /* Insert trippy space effects. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) __head_s_vaddr_target:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * Tear down VA=PA translation now that we are running
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * in kernel virtual space.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) r0 = #__HVM_PDE_S_INVALID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) r1.h = #0xffc0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) r1.l = #0x0000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) r2 = r25; /* phys_offset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) r2 = and(r1,r2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) r1.l = #lo(swapper_pg_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) r1.h = #hi(swapper_pg_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) r2 = lsr(r2, #22) /* 4MB page number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) r2 = asl(r2, #2) /* times sizeof(PTE) (4bytes) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) r1 = add(r1,r2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) loop0(1f,r26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) memw(R1 ++ #4) = R0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }:endloop0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) r0 = r24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) r1 = #VM_TRANS_TYPE_TABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) call __vmnewmap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) /* Go ahead and install the trap0 return so angel calls work */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) r0.h = #hi(_K_provisional_vec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) r0.l = #lo(_K_provisional_vec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) call __vmsetvec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) * OK, at this point we should start to be much more careful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) * we're going to enter C code and start touching memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * in all sorts of places.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * This means:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * SGP needs to be OK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * Need to lock shared resources
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * A bunch of other things that will cause
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * all kinds of painful bugs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * Stack pointer should be pointed at the init task's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * thread stack, which should have been declared in arch/init_task.c.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * So uhhhhh...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * It's accessible via the init_thread_union, which is a union
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * of a thread_info struct and a stack; of course, the top
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * of the stack is not for you. The end of the stack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * is simply init_thread_union + THREAD_SIZE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {r29.H = #HI(init_thread_union); r0.H = #HI(_THREAD_SIZE); }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {r29.L = #LO(init_thread_union); r0.L = #LO(_THREAD_SIZE); }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) /* initialize the register used to point to current_thread_info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) /* Fixme: THREADINFO_REG can't be R2 because of that memset thing. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) {r29 = add(r29,r0); THREADINFO_REG = r29; }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /* Hack: zero bss; */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) { r0.L = #LO(__bss_start); r1 = #0; r2.l = #LO(__bss_stop); }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) { r0.H = #HI(__bss_start); r2.h = #HI(__bss_stop); }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) r2 = sub(r2,r0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) call memset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) /* Set PHYS_OFFSET; should be in R25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) #ifdef CONFIG_HEXAGON_PHYS_OFFSET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) r0.l = #LO(__phys_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) r0.h = #HI(__phys_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) memw(r0) = r25;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) /* Time to make the doughnuts. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) call start_kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * Should not reach here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) jump 1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) .p2align PAGE_SHIFT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) ENTRY(external_cmdline_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) .fill _PAGE_SIZE,1,0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) .p2align PAGE_SHIFT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) ENTRY(empty_zero_page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) .fill _PAGE_SIZE,1,0
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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