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The new optimized memcpy doesn't work well on device memory, and when subsys tries to load any FW, we are met with: [ 11.111213] ueventd: firmware: loading 'cdsp.mdt' for '/devices/platform/soc/8300000.qcom,turing/firmware/cdsp.mdt' [ 11.113128] ueventd: loading /devices/platform/soc/8300000.qcom,turing/firmware/cdsp.mdt took 2ms [ 11.113170] subsys-pil-tz 8300000.qcom,turing: cdsp: loading from 0x0000000099100000 to 0x000000009a500000 [ 11.117481] ueventd: firmware: loading 'adsp.mdt' for '/devices/platform/soc/17300000.qcom,lpass/firmware/adsp.mdt' [ 11.117518] Unable to handle kernel paging request at virtual address ffffff801f7c6d5c [ 11.117522] Mem abort info: [ 11.117525] Exception class = DABT (current EL), IL = 32 bits [ 11.117527] SET = 0, FnV = 0 [ 11.117529] EA = 0, S1PTW = 0 [ 11.117530] FSC = 33 [ 11.117532] Data abort info: [ 11.117534] ISV = 0, ISS = 0x00000061 [ 11.117536] CM = 0, WnR = 1 [ 11.117539] swapper pgtable: 4k pages, 39-bit VAs, pgd = 000000003e4fd651 [ 11.117541] [ffffff801f7c6d5c] *pgd=00000001f8883003, *pud=00000001f8883003, *pmd=00000001f30fe003, *pte=00680000fd475703 [ 11.117547] Internal error: Oops: 96000061 [#1] PREEMPT SMP [ 11.117551] Modules linked in: [ 11.117554] Process init (pid: 568, stack limit = 0x000000005be89f40) [ 11.117558] CPU: 4 PID: 568 Comm: init Tainted: G S W 4.14.239-MOCHI #1 [ 11.117560] Hardware name: Qualcomm Technologies, Inc. SM8150 V2 PM8150 VAYU (DT) [ 11.117562] task: 00000000e65c9d8d task.stack: 000000005be89f40 [ 11.117570] pc : memcpy+0x188/0x2a0 [ 11.117577] lr : pil_init_image_trusted+0x130/0x234 [ 11.117579] sp : ffffff80229937c0 pstate : 80000145 [ 11.117581] x29: ffffff80229937c0 x28: ffffffeaebf93a00 [ 11.117584] x27: ffffff8599334000 x26: 0000000000000040 [ 11.117586] x25: ffffff859a0aeaa0 x24: ffffff859a63a000 [ 11.117589] x23: ffffffeaf557d880 x22: ffffff801f7c5000 [ 11.117592] x21: 0000000000001d9c x20: ffffff801f65d000 [ 11.117594] x19: ffffff859933cb08 x18: 0000007c2b138000 [ 11.117597] x17: 0000007ebf1ef1e4 x16: ffffff8597c02274 [ 11.117599] x15: ffffffffffffffff x14: ffffffffffffffff [ 11.117602] x13: ffffffffffffffff x12: ffffffffffffffff [ 11.117604] x11: ffffffffffffffff x10: ffffffffffffffff [ 11.117607] x9 : ffffffffffffffff x8 : ffffffffffffffff [ 11.117609] x7 : ffffffffffffffff x6 : ffffffffffffffff [ 11.117612] x5 : ffffff801f7c6d9c x4 : ffffff801f65ed9c [ 11.117614] x3 : ffffff801f7c6d40 x2 : ffffffffffffffcc [ 11.117617] x1 : ffffff801f65ed80 x0 : ffffff801f7c5000 [ 11.117620] [ 11.117620] PC: 0xffffff8598c00e28: [ 11.117622] 0e28 a9022468 a9422428 a9032c6a a9432c2a a984346c a9c4342c f1010042 54fffee8 [ 11.117628] 0e48 a97c3c8e a9011c66 a97d1c86 a9022468 a97e2488 a9032c6a a97f2c8a a904346c [ 11.117634] 0e68 a93c3cae a93d1ca6 a93e24a8 a93f2caa d65f03c0 d503201f a97f348c 92400cae [ 11.117639] 0e88 cb0e0084 cb0e0042 a97f1c86 a93f34ac a97e2488 a97d2c8a a9fc348c cb0e00a5 [ 11.117645] [ 11.117645] LR: 0xffffff8597ef067c: [ 11.117647] 067c 97eeeccc f9400265 b4fffe65 52801803 910143e2 aa1503e1 910183e0 d2804004 [ 11.117652] 069c 72a02803 d63f00a0 aa0003f6 17ffffe9 aa1403e1 aa1503e2 aa1603e0 9434418a [ 11.117658] 06bc 97ff9590 72001c1f b9404ae1 f9402be0 54000241 910133e4 910163e2 d2800085 [ 11.117663] 06dc d2800103 290b03e1 52800021 52800040 97ff9657 2a0003f3 f9413bf4 f9402bf7 [ 11.117669] [ 11.117669] SP: 0xffffff8022993780: [ 11.117671] 3780 98c00e68 ffffff85 80000145 00000000 9a0aeaa0 ffffff85 00000040 00000000 [ 11.117677] 37a0 ffffffff 0000007f 97ef0644 ffffff85 229937c0 ffffff80 98c00e68 ffffff85 [ 11.117682] 37c0 22993ba0 ffffff80 97eeec4c ffffff85 f557d918 ffffffea 00000000 00000000 [ 11.117688] 37e0 f6264460 ffffffea f6264400 ffffffea f55b9480 ffffffea 97b704d8 ffffff85 [ 11.117693] [ 11.117695] Call trace: [ 11.117698] memcpy+0x188/0x2a0 [ 11.117701] pil_boot+0x358/0x730 [ 11.117704] subsys_powerup+0x28/0x30 [ 11.117709] subsys_start+0x38/0x134 [ 11.117711] __subsystem_get+0xb0/0x11c [ 11.117713] subsystem_get+0x10/0x18 [ 11.117716] cdsp_loader_do.isra.0+0xe4/0x1a8 [ 11.117718] cdsp_boot_store+0x8c/0x168 [ 11.117722] kobj_attr_store+0x14/0x24 [ 11.117726] sysfs_kf_write+0x34/0x44 [ 11.117729] kernfs_fop_write+0x118/0x184 [ 11.117733] __vfs_write+0x2c/0xd8 [ 11.117735] vfs_write+0x80/0xec [ 11.117738] SyS_write+0x54/0xac [ 11.117741] el0_svc_naked+0x34/0x38 [ 11.117744] Code: a97e2488 a9032c6a a97f2c8a a904346c (a93c3cae) [ 11.117747] ---[ end trace fc45fc8b1fa34513 ]--- Fixes booting with the new optimized memcpy routine. Change-Id: Ia95b740ec0ce2fd90e7eea5d5ee162d26f354179 Signed-off-by: Jebaitedneko <Jebaitedneko@gmail.com> Signed-off-by: Richard Raya <rdxzv.dev@gmail.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.