Hi Jagan,

On 10/23/22 01:35, Jagan Teki wrote:

Hi Kever and Heiko,

Rockchip 32-bit SoC, like rv1126 seems to depend on PSCI to bring SMP in linux.

With rockchip u-boot and Mainline U-Boot the psci in linux-next triggers the abort. (note that I have added rockchip_smcc and enabled PSCI in u-boot)

Did you ever find a solution to this? I am hitting the same issue building 6.1 kernel for rv1126.

[ 0.000000] Booting Linux on physical CPU 0xf00 [ 0.000000] Linux version 6.1.0-rc1-00029-gb09e57e6064a (j@j-ThinkPad-E14-Gen-2) (arm-linux-gnueabihf-gcc (GCC) 11.0.1 20210310 (experimental) [master revision 5987d8a79cda1069c774e5c302d5597310270026], GNU ld (Linaro_Binutils-2021.03) 2.36.50.20210310) #12 SMP Sat Oct 22 19:44:56 IST 2022 [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d [ 0.000000] CPU: div instructions available: patching division code [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] OF: fdt: Machine model: Edgeble Neu2 IO Board [ 0.000000] earlycon: uart8250 at MMIO32 0xff570000 (options '') [ 0.000000] printk: bootconsole [uart8250] enabled [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 64 MiB at 0x7c000000 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000000000-0x000000002fffffff] [ 0.000000] Normal empty [ 0.000000] HighMem [mem 0x0000000030000000-0x000000007fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x000000007fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000007fffffff] [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] Bad mode in prefetch abort handler detected [ 0.000000] Internal error: Oops - bad mode: 0 [#1] SMP ARM [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.1.0-rc1-00029-gb09e57e6064a #12 [ 0.000000] Hardware name: Generic DT based system [ 0.000000] PC is at 0x133fd468 [ 0.000000] LR is at __invoke_psci_fn_smc+0x38/0x58 [ 0.000000] pc : [<133fd468>] lr : [<c0eb20f0>] psr: 600001d6 [ 0.000000] sp : c1e01e68 ip : c1e01ec0 fp : 80000200 [ 0.000000] r10: c1e01f58 r9 : 7fffffff r8 : c1e09410 [ 0.000000] r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : 00000000 [ 0.000000] r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 84000000 [ 0.000000] Flags: nZCv IRQs off FIQs off Mode MON_32 ISA ARM Segment none [ 0.000000] Control: 10c5387d Table: 0020406a DAC: c1e09980 [ 0.000000] Register r0 information: non-paged memory [ 0.000000] Register r1 information: NULL pointer [ 0.000000] Register r2 information: NULL pointer [ 0.000000] Register r3 information: NULL pointer [ 0.000000] Register r4 information: NULL pointer [ 0.000000] Register r5 information: NULL pointer [ 0.000000] Register r6 information: NULL pointer [ 0.000000] Register r7 information: NULL pointer [ 0.000000] Register r8 information: non-slab/vmalloc memory [ 0.000000] Register r9 information: non-paged memory [ 0.000000] Register r10 information: non-slab/vmalloc memory [ 0.000000] Register r11 information: non-paged memory [ 0.000000] Register r12 information: non-slab/vmalloc memory [ 0.000000] Process swapper (pid: 0, stack limit = 0x(ptrval)) [ 0.000000] Stack: (0xc1e01e68 to 0xc1e02000) [ 0.000000] 1e60: 84000000 00000000 00000000 00000000 00000000 00000000 [ 0.000000] 1e80: 00000000 00000000 c1e09410 7fffffff c1e01f58 80000200 c1e01ec0 c1e01e68 [ 0.000000] 1ea0: c0eb20f0 133fd468 600001d6 ffffffff c1e09980 00000000 c20891c0 c1b1c168 [ 0.000000] 1ec0: 00000000 00000000 00000000 00000000 c1e01edc 00000000 c20891c0 c1245ac8 [ 0.000000] 1ee0: ff8005a8 00000000 c1d2fca0 00000000 eefea2fc c1c93594 eefea2fc c1e09980 [ 0.000000] 1f00: c20891c0 c1b1c168 c1e09410 c1c93a10 eefea2fc c1c939d8 c1d2fbdc 00000000 [ 0.000000] 1f20: 7fffffff c1caf854 c1e0afa0 c1c04c44 00000000 c1e01f4c c1e01f50 00000000 [ 0.000000] 1f40: c1e09980 c198cfec c1e01f9c 00000000 80000000 c1e09980 ffffffff ffffffff [ 0.000000] 1f60: c2089064 08300000 410fc075 10c5387d 00000000 c039de88 c1e01f9c 00000000 [ 0.000000] 1f80: c1e09980 c1c00420 c1e04ec0 c1e09980 c2089064 08300000 410fc075 10c5387d [ 0.000000] 1fa0: 00000000 c1c00b08 00000000 00000000 00000000 00000000 00000000 00000000 [ 0.000000] 1fc0: 00000000 c1cc8a6c 00000000 00000000 00000000 c1c00420 00000051 10c0387d [ 0.000000] 1fe0: 00000000 08300000 410fc075 10c5387d 00000000 00000000 00000000 00000000 [ 0.000000] __invoke_psci_fn_smc from 0xc1e01e68 [ 0.000000] Code: bad PC value

Any comments?

Thanks, Jagan.