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618d3adc35
tmp_suning_uos_patched/arch/powerpc/kernel
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Jake Moilanen 618d3adc35 [POWERPC] DMA 4GB boundary protection 
There are many adapters which can not handle DMAing acrosss any 4 GB
boundary.  For instance the latest Emulex adapters.

This normally is not an issue as firmware gives us dma-windows under
4gigs.  However, some of the new System-P boxes have dma-windows above
4gigs, and this present a problem.

I propose fixing it in the IOMMU allocation instead of making each
driver protect against it as it is more efficient, and won't require
changing every driver which has not considered this issue.

This patch checks to see if the mapping spans a 4 gig boundary, and if
it does, retries the allocation.  It tries the next allocation at the
start of the crossed 4 gig boundary.

Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-09 15:03:25 +11:00
..
vdso32 [POWERPC] Support feature fixups in vdso's 2006-10-25 11:54:07 +10:00
vdso64 [POWERPC] Cell timebase bug workaround 2006-10-25 11:54:18 +10:00
align.c
asm-offsets.c [POWERPC] Fix manual assembly WARN_ON() in enter_rtas(). 2007-01-09 17:03:02 +11:00
audit.c
binfmt_elf32.c
btext.c [POWERPC] Use udbg_early_init() on ppc32 2007-02-14 11:55:16 +11:00
compat_audit.c
cpu_setup_6xx.S
cpu_setup_pa6t.S [POWERPC] pasemi: Idle loops 2007-02-07 14:03:22 +11:00
cpu_setup_ppc970.S [POWERPC] powerpc: Enable DEEPNAP power savings mode on 970MP 2006-10-16 16:32:25 +10:00
cputable.c [POWERPC] No DEEPNAP on 970MP 1.0 2007-03-08 04:09:32 +11:00
crash_dump.c
crash.c [PATCH] Kexec / Kdump: Unify elf note code 2006-12-07 08:39:46 -08:00
dma_64.c [POWERPC] Make direct DMA use node local allocations 2006-12-04 20:38:59 +11:00
entry_32.S
entry_64.S [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace 2007-02-07 14:03:23 +11:00
firmware.c
fpu.S
head_4xx.S
head_8xx.S
head_32.S [POWERPC] Remove the broken Gemini support 2007-01-24 21:13:58 +11:00
head_44x.S [POWERPC] Remove ibm4{xx,4x}.h from arch/powerpc 2007-02-13 14:59:52 +11:00
head_64.S [POWERPC] Remove some redundant isync instructions 2007-03-09 15:03:24 +11:00
head_booke.h
head_fsl_booke.S [POWERPC] 85xx: Drop use of SYNC macro in head_fsl_booke.S 2007-02-13 16:13:27 -06:00
ibmebus.c [POWERPC] Replace kmalloc+memset with kzalloc 2006-12-04 20:42:09 +11:00
idle_6xx.S
idle_power4.S [POWERPC] Lazy interrupt disabling for 64-bit machines 2006-10-16 16:31:36 +10:00
idle.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
init_task.c
io.c [POWERPC] Merge 32 and 64 bits asm-powerpc/io.h 2006-12-04 20:39:05 +11:00
iomap.c [POWERPC] Remove fastcall function attribute 2007-01-26 01:52:27 -06:00
iommu.c [POWERPC] DMA 4GB boundary protection 2007-03-09 15:03:25 +11:00
irq.c [PATCH] msi: sanely support hardware level msi disabling 2007-03-05 07:57:50 -08:00
kprobes.c [POWERPC] Added kprobes support to ppc32 2007-02-06 22:55:19 -06:00
l2cr_6xx.S
legacy_serial.c [POWERPC] Open Firmware serial port driver 2007-02-14 11:50:04 +11:00
lparcfg.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
lparmap.c
machine_kexec_32.c
machine_kexec_64.c
machine_kexec.c
Makefile [POWERPC] pasemi: Idle loops 2007-02-07 14:03:22 +11:00
misc_32.S [POWERPC] Consolidate feature fixup code 2006-10-25 11:42:10 +10:00
misc_64.S [POWERPC] pasemi: UART udbg support 2007-02-07 14:03:22 +11:00
misc.S
module_32.c [POWERPC] Add support for R_PPC_ADDR16_HI relocations 2007-01-24 21:13:58 +11:00
module_64.c [POWERPC] Generic BUG for powerpc 2006-12-11 16:35:07 +11:00
nvram_64.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
of_device.c [POWERPC] of_device_register: propagate device_create_file return code 2006-12-08 02:23:07 -06:00
of_platform.c [POWERPC] powerpc: add scanning of ebc bus to of_platform 2006-12-19 15:35:40 +01:00
paca.c
pci_32.c [POWERPC] Do not write virq back to PCI config space 2007-01-24 21:13:57 +11:00
pci_64.c Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc 2007-02-08 10:04:20 -08:00
pci_dn.c
pmc.c [POWERPC] PA6T PMC support 2007-02-07 14:03:19 +11:00
ppc32.h
ppc_ksyms.c [POWERPC] Compile fixes for arch/powerpc dcr code 2007-02-07 14:03:23 +11:00
proc_ppc64.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
process.c [POWERPC] Harden validate_sp against stack corruption 2007-03-08 15:31:43 +11:00
prom_init.c [POWERPC] Add device tree fixups for the EFIKA 2007-02-13 15:35:53 +11:00
prom_parse.c [POWERPC] Fix warning in prom_parse.c of_irq_map_oldworld() 2007-03-08 04:09:33 +11:00
prom.c [POWERPC] Automatically lmb_reserve() initrd 2007-03-08 15:43:35 +11:00
ptrace32.c
ptrace-common.h
ptrace.c [POWERPC] Mask 32-bit system call arguments to 32 bits on PPC64 in audit code 2007-01-24 21:13:58 +11:00
rtas_flash.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
rtas_pci.c [POWERPC] Merge 32 and 64 bits asm-powerpc/io.h 2006-12-04 20:39:05 +11:00
rtas-proc.c [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
rtas-rtc.c
rtas.c Storage class should be before const qualifier 2007-02-17 20:11:19 +01:00
semaphore.c
setup_32.c [POWERPC] Use udbg_early_init() on ppc32 2007-02-14 11:55:16 +11:00
setup_64.c [POWERPC] Distinguish POWER6 partition modes and tell userspace 2006-12-04 20:40:16 +11:00
setup-common.c [POWERPC] Automatically lmb_reserve() initrd 2007-03-08 15:43:35 +11:00
setup.h
signal_32.c [POWERPC] Fix register save area alignment for swapcontext syscall 2006-12-20 16:37:49 +11:00
signal_64.c
smp-tbsync.c [POWERPC] Replace kmalloc+memset with kzalloc 2006-12-04 20:42:09 +11:00
smp.c [POWERPC] Move MPIC smp routines into mpic.c 2007-02-14 11:50:04 +11:00
swsusp_32.S
sys_ppc32.c [PATCH] Common compat_sys_sysinfo 2007-02-11 10:51:32 -08:00
syscalls.c
sysfs.c [POWERPC] PA6T PMC support 2007-02-07 14:03:19 +11:00
systbl.S
tau_6xx.c
time.c [POWERPC] iSeries: fix time.c for combined build 2006-12-04 20:39:15 +11:00
traps.c backlight: Separate backlight properties from backlight ops pointers 2007-02-20 09:26:53 +00:00
udbg_16550.c [POWERPC] pasemi: UART udbg support 2007-02-07 14:03:22 +11:00
udbg.c [POWERPC] Use udbg_early_init() on ppc32 2007-02-14 11:55:16 +11:00
vdso.c [POWERPC] Fix vDSO page count calculation 2007-02-13 15:35:52 +11:00
vecemu.c
vector.S
vio.c [POWERPC] arch/powerpc/kernel/vio.c of_node_put cleanup 2007-01-24 21:13:57 +11:00
vmlinux.lds.S [PATCH] disable init/initramfs.c: architectures 2007-02-11 10:51:25 -08:00