Subject: [PATCH 1/2] ARM: omapfb: add coherent dma memory support

From: [email-masked] (Ivaylo Dimitrov)
Date: Sat, 11 Jan 2014 15:28:08 +0200

On 09.01.2014 10:08, Hiremath, Vaibhav wrote:

>
> No, that's what is causing issue to me. Can you try predefined address flow?
>
> Thanks,
> Vaibhav
>

Booting Linux on physical CPU 0x0
Initializing cgroup subsys cpu
Linux version 3.13.0-rc7+ (maemo at maemo-desktop) (gcc version 4.7.2 
20120701 (prerelease) (Linaro GCC 4.7-2012.07) ) #24 PREEMPT Sat Jan 11 
17:06:39 EET 2014
CPU: ARMv7 Processor [411fc083] revision 3 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: Nokia RX-51 board
omapfb: reserved 0x00800000 bytes at 0x8f100000
Memory policy: Data cache writeback
On node 0 totalpages: 61696
free_area_init_node: node 0, pgdat c05b73b4, node_mem_map c061b000
   Normal zone: 512 pages used for memmap
   Normal zone: 0 pages reserved
   Normal zone: 61696 pages, LIFO batch:15
CPU: All CPU(s) started in SVC mode.
OMAP3430/3530 ES3.1 (l2cache iva sgx neon isp )
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc: [0] 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 61184
Kernel command line: init=/sbin/preinit ubi.mtd=rootfs root=ubi0:rootfs 
rootfstype=ubifs rootflags=bulk_read,no_chk_data_crc rw 
mtdoops.mtddev=log console=tty0 console=ttyO2 omapfb_vram=8M at 0x8F100000 
omapfb.mode=lcd:848x480-16

There are no (UNDERFLOW) errors on OMAP3 when predefined address is 
used, I am still able to play every video I try.

Ivo