Re: [Gumstix-users] Problem using DSP core on Overo Fire

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Paul,
Could you elaborate with regard to how you modified the u-boot parameters or
point me in the right direction.  I am getting the following error when
booting:
CMEM Range Overlaps Kernel Physical - allowing overlap
CMEM phys_start (0x86300000) overlaps kernel (0x80000000 -> 0x90000000)
CMEMK Error: Failed to request_mem_region(0x86300000, 16777216)
FATAL: Error inserting cmemk
(/lib/modules/2.6.32/kernel/drivers/dsp/cmemk.ko):
Bad address

and need to direct the boot loader to free up this region for CMEM.
Thanks,
Craig

Paul Wilson wrote:
> 
> Hello Everybody,
> 
> I have finally got the DSPLINK code to build thanks to a solution to the 
> compile error for source file
> 
> $(HOME)/oveo-oe/tmp/staging/overo-angstrom-linux-gnueabi/ti-dsplink-module/packages/dsplink/gpp/src/arch/OMAP3530/shmem/Linux/omap3530_phy_shmem.c
> 
> The message with the solution can be found at
> 
> http://old.nabble.com/Re%3A-IO_ADDRESS-definition-missing-in-ti-codec-engine-build-p28093573.html
> 
> I have modified the u-boot parameters to allocate 126 MB of memory for 
> the ARM core as illustrate by the invocation of free in the terminal 
> listing below.
> 
> However, when I try to invoke the memorygpp example code, it fails (see 
> terminal listing below) with an unhandled kernel paging request and 
> subsequent segmentation fault.
> 
> I have double and triple checked everything I did to build DSPLINK etc. 
> but, other than the patch to allow omap33530_phy_shmem.c, everything is 
> straight forward and out of the box. Any suggestions?
> 
> Paul Wilson
> 
> -------------------------------------------- cut here 
> --------------------------------------
> 
> .-------.
> |       |                  .-.
> |   |   |-----.-----.-----.| |   .----..-----.-----.
> |       |     | __  |  ---'| '--.|  .-'|     |     |
> |   |   |  |  |     |---  ||  --'|  |  |  '  | | | |
> '---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
>                  -'  |
>                  '---'
> 
> The Angstrom Distribution overo ttyS2
> 
> Angstrom 2010.4-test-20100405 overo ttyS2
> 
> overo login: root
> root@overo:~# free
>               total       used       free     shared    buffers     cached
> Mem:        109584      23300      86284          0        976      11908
> -/+ buffers/cache:      10416      99168
> Swap:            0          0          0
> root@overo:~# cat load-dsplink.sh
> # insert CMEM driver, using one block of memory
> #
> # Note: phys_end = (addr + 1)
> #
> # block 0: 0x8C900000 - 0x8D8FFFFF (16 MB), External Memory
> # pool:    80 KB, 20 x 4 KB buffers
> # pool:  1280 KB, 10 x 128 KB buffers
> # pool:  2048 KB, 2 x 1 MB buffers
> # heap: 12976 KB, (~12.67 MB)
> #
> insmod /lib/modules/2.6.32/kernel/drivers/dsp/cmemk.ko 
> phys_start=0x8C900000 phys_end=0x8D900000
> pools=20x4096,10x131072,2x1048576
> 
> 
> # insert DSP/BIOS Link driver
> #
> insmod /lib/modules/2.6.32/kernel/drivers/dsp/dsplinkk.ko
> rm -f /dev/dsplink
> mknod /dev/dsplink c `awk "/dsplink/ {print \\$1}" /proc/devices` 0
> 
> 
> # insert Local Power Manager driver
> #
> insmod /lib/modules/2.6.32/kernel/drivers/dsp/lpm_omap3530.ko
> rm -f /dev/lpm0
> mknod /dev/lpm0 c `awk "/lpm/ {print \\$1}" /proc/devices` 0
> 
> 
> root@overo:~# sh load-dsplink.sh
> CMEMK module: built on Apr  7 2010 at 12:26:32
>    Reference Linux version 2.6.32
>    File 
> /home/Developer/overo-oe/tmp/work/overo-angstrom-linux-gnueabi/ti-linuxutils-2_25_01_06-r51a/linuxutils_2_25_01_06/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c
> allocated heap buffer 0xc9000000 of size 0xcac000
> cmemk initialized
> DSPLINK Module (1.61.03) created on Date: Apr 12 2010 Time: 15:56:33
> root@overo:~#
> root@overo:~#
> root@overo:~# cd /usr/share/ti/dsplink/apps
> root@overo:/usr/share/ti/dsplink/apps# ls
> loadmodules-ti-dsplink-apps.sh    mpcsxfer.out   readwritegpp
> message.out            mpcsxfergpp    ringio.out
> messagegpp            mplist.out     ringiogpp
> messagemulti.out        mplistgpp      unloadmodules-ti-dsplink-apps.sh
> messagemultigpp            readwrite.out
> root@overo:/usr/share/ti/dsplink/apps# sh loadmodule*.sh
> You have 109584kB total memory for Linux
> root@overo:/usr/share/ti/dsplink/apps# lpmON.x470uC
> ==== LPM ON Test ====
> app: LPM_open
> app: LPM_set(LPM_CTRL_REFCOUNTOVR)
> app: LPM_on
> app: LPM_close
> ==== LPM ON completed ====
> 
> root@overo:/usr/share/ti/dsplink/apps#
> root@overo:/usr/share/ti/dsplink/apps# lpmOFF.x470uC
> ==== LPM OFF Test ====
> app: LPM_open
> app: LPM_set(LPM_CTRL_REFCOUNTOVR)
> app: LPM_off
> app: LPM_close
> ==== LPM OFF test completed ====
> 
> root@overo:/usr/share/ti/dsplink/apps# ./messagegpp message.out 1000
> ========== Sample Application : Unable to handle kernel paging request 
> at virtual address 47005000
> MESSAGE ==========
> Entered MESSpgd = c68f0000
> AGE_Create ()
> [47005000] *pgd=00000000
> Internal error: Oops: 5 [#1]
> last sysfs file: 
> /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:0007/block/mmcblk0/size
> Modules linked in: lpm_omap3530 dsplinkk cmemk ipv6
> CPU: 0    Not tainted  (2.6.32 #1)
> PC is at OMAP3530_halPwrCtrl+0x38/0xdc [dsplinkk]
> LR is at OMAP3530_init+0x158/0x1d0 [dsplinkk]
> pc : [<bf0589ec>]    lr : [<bf057b6c>]    psr: 80000013
> sp : c6905e18  ip : 00008000  fp : c6905e64
> r10: c6905e20  r9 : 00000000  r8 : bf06a490
> r7 : c81c5000  r6 : c81c8000  r5 : 0000000b  r4 : c849b000
> r3 : bf06a17c  r2 : 47005000  r1 : 00000000  r0 : c849b000
> Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
> Control: 10c5387d  Table: 868f0019  DAC: 00000015
> Process messagegpp (pid: 331, stack limit = 0xc69042f0)
> Stack: (0xc6905e18 to 0xc6906000)
> 5e00:                                                       c6905e34 
> c0180d20
> 5e20: 5cf04000 00014000 c8720000 00000000 00008000 00000000 00000000 
> c81c8000
> 5e40: 00000000 c81c8024 bf06a4c0 bf057098 00000000 bf0593f8 bf06a1a8 
> c81c5000
> 5e60: 00008000 00000000 00000008 00000000 00008000 00000000 00000000 
> 00000001
> 5e80: c6904000 bf06bad4 bebd0b94 bf066c9c 00000000 c8492000 00000000 
> 00006c08
> 5ea0: bebd0ba4 00006c08 00006c08 bebd0ba4 c7b3a7c0 bebd0ba4 40025000 
> bf06798c
> 5ec0: 00000000 000008d9 000021a4 00000001 00000000 00000000 0000e600 
> 00000000
> 5ee0: 00000000 00000000 00000000 00008000 00000000 00000000 4001dc00 
> 00009a90
> 5f00: 0001de80 00000000 c7b3a7c0 00006c08 bebd0ba4 c0196d14 00000003 
> c7b3a7c0
> 5f20: 00006c08 c01973c4 c6905f80 630508d9 c6905f8c c06553e8 c06553e0 
> c027f1a4
> 5f40: bebd0b9c 00000000 00000000 c06553f4 c06553dc 00000001 00000001 
> 00000000
> 5f60: 630508d9 00000000 00000003 bebd0ba4 00006c08 c7b3a7c0 c00f20c4 
> c6904000
> 5f80: 40025000 c019744c 00000000 00000000 0000012a 4001df90 00000000 
> 00008bbc
> 5fa0: 00000036 c00f1f40 4001df90 00000000 00000003 00006c08 bebd0ba4 
> 00000003
> 5fc0: 4001df90 00000000 00008bbc 00000036 00000000 00000000 40025000 
> bebd0b94
> 5fe0: 00000000 bebd0ac0 00011330 4010063c 80000010 00000003 00000000 
> 00000000
> [<bf0589ec>] (OMAP3530_halPwrCtrl+0x38/0xdc [dsplinkk]) from 
> [<bf057b6c>] (OMAP3530_init+0x158/0x1d0 [dsplinkk])
> [<bf057b6c>] (OMAP3530_init+0x158/0x1d0 [dsplinkk]) from [<bf057098>] 
> (DSP_init+0x28/0x34 [dsplinkk])
> [<bf057098>] (DSP_init+0x28/0x34 [dsplinkk]) from [<bf0593f8>] 
> (LDRV_PROC_init+0x228/0x2f8 [dsplinkk])
> [<bf0593f8>] (LDRV_PROC_init+0x228/0x2f8 [dsplinkk]) from [<bf066c9c>] 
> (PMGR_PROC_attach+0xec/0x310 [dsplinkk])
> [<bf066c9c>] (PMGR_PROC_attach+0xec/0x310 [dsplinkk]) from [<bf06798c>] 
> (DRV_Ioctl+0x45c/0x764 [dsplinkk])
> [<bf06798c>] (DRV_Ioctl+0x45c/0x764 [dsplinkk]) from [<c0196d14>] 
> (vfs_ioctl+0x60/0x70)
> [<c0196d14>] (vfs_ioctl+0x60/0x70) from [<c01973c4>] 
> (do_vfs_ioctl+0x4d0/0x520)
> [<c01973c4>] (do_vfs_ioctl+0x4d0/0x520) from [<c019744c>] 
> (sys_ioctl+0x38/0x5c)
> [<c019744c>] (sys_ioctl+0x38/0x5c) from [<c00f1f40>] 
> (ret_fast_syscall+0x0/0x2c)
> Code: ea000028 e5902014 e3a01000 e3a0c902 (e5923000)
> ---[ end trace 8df940b4de4114e6 ]---
>   overo Internal error: Oops: 5 [#1]
>   overo last sysfs file: 
> /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:0007/block/mmcblk0/size
>   overo Process messagegpp (pid: 331, stack limit = 0xc69042f0)
>   overo Stack: (0xc6905e18 to 0xc6906000)
>   overo 5e00:                                                       
> c6905e34 c0180d20
>   overo 5e20: 5cf04000 00014000 c8720000 00000000 00008000 00000000 
> 00000000 c81c8000
>   overo 5e40: 00000000 c81c8024 bf06a4c0 bf057098 00000000 bf0593f8 
> bf06a1a8 c81c5000
>   overo 5e60: 00008000 00000000 00000008 00000000 00008000 00000000 
> 00000000 00000001
>   overo 5e80: c6904000 bf06bad4 bebd0b94 bf066c9c 00000000 c8492000 
> 00000000 00006c08
>   overo 5ea0: bebd0ba4 00006c08 00006c08 bebd0ba4 c7b3a7c0 bebd0ba4 
> 40025000 bf06798c
>   overo 5ec0: 00000000 000008d9 000021a4 00000001 00000000 00000000 
> 0000e600 00000000
>   overo 5ee0: 00000000 00000000 00000000 00008000 00000000 00000000 
> 4001dc00 00009a90
>   overo 5f00: 0001de80 00000000 c7b3a7c0 00006c08 bebd0ba4 c0196d14 
> 00000003 c7b3a7c0
>   overo 5f20: 00006c08 c01973c4 c6905f80 630508d9 c6905f8c c06553e8 
> c06553e0 c027f1a4
>   overo 5f40: bebd0b9c 00000000 00000000 c06553f4 c06553dc 00000001 
> 00000001 00000000
>   overo 5f60: 630508d9 00000000 00000003 bebd0ba4 00006c08 c7b3a7c0 
> c00f20c4 c6904000
>   overo 5f80: 40025000 c019744c 00000000 00000000 0000012a 4001df90 
> 00000000 00008bbc
>   overo 5fa0: 00000036 c00f1f40 4001df90 00000000 00000003 00006c08 
> bebd0ba4 00000003
>   overo 5fc0: 4001df90 00000000 00008bbc 00000036 00000000 00000000 
> 40025000 bebd0b94
>   overo 5fe0: 00000000 bebd0ac0 00011330 4010063c 80000010 00000003 
> 00000000 00000000
>   overo Code: ea000028 e5902014 e3a01000 e3a0c902 (e5923000)
> Segmentation fault
> root@overo:/usr/share/ti/dsplink/apps#
> root@overo:/usr/share/ti/dsplink/apps#
> root@overo:/usr/share/ti/dsplink/apps#
> root@overo:/usr/share/ti/dsplink/apps#
> root@overo:/usr/share/ti/dsplink/apps# ./messagegpp message.out 1000
> ========== Sample Application : MESSAGE ==========
> Entered MESSAGE_Create ()
> ^Croot@overo:/usr/share/ti/dsplink/apps#
> root@overo:/usr/share/ti/dsplink/apps#
> -------------------------------------------- cut here 
> --------------------------------------
> 
> 
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