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2b5987abaf
linux/arch/mips/pci
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David Daney 2b5987abaf MIPS: Octeon: Allow more than 3.75GB of memory with PCIe 
We reserve the 3.75GB - 4GB region of PCIe address space for device to
device transfers, making the corresponding physical memory under
direct mapping unavailable for DMA.

To allow for PCIe DMA to all physical memory we map this chunk of
physical memory with BAR1.  Because of the resulting discontinuity in
the mapping function, we remove a page of memory at each end of the
range so multi-page DMA buffers can never be allocated that span the
range.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1535/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05 13:26:31 +01:00
..
fixup-au1000.c
fixup-bcm63xx.c MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs. 2009-09-17 20:07:52 +02:00
fixup-capcella.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
fixup-cobalt.c MIPS: Cobalt: convert legacy port addresses to GT-64111 bus addresses 2010-02-27 12:53:44 +01:00
fixup-emma2rh.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
fixup-fuloong2e.c MIPS: Bonito64: Make Loongson independent from Bonito64 code. 2009-12-17 01:57:06 +00:00
fixup-ip32.c
fixup-jmr3927.c
fixup-lemote2f.c MIPS: Loongson: Lemote-2F: USB: Not Emulate Non-Posted Writes 2010-02-27 12:53:09 +01:00
fixup-malta.c
fixup-mpc30x.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
fixup-pmcmsp.c
fixup-pnx8550.c
fixup-rbtx4927.c
fixup-rbtx4938.c
fixup-rc32434.c MIPS: RB532: Fix build error 2008-10-27 16:18:26 +00:00
fixup-sb1250.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
fixup-sni.c
fixup-tb0219.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
fixup-tb0226.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
fixup-tb0287.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
fixup-wrppmc.c
fixup-yosemite.c
Makefile MIPS: eXcite: Remove platform. 2009-12-17 01:57:35 +00:00
msi-octeon.c MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts. 2010-08-05 13:26:27 +01:00
ops-au1000.c
ops-bcm63xx.c MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs. 2009-09-17 20:07:52 +02:00
ops-bonito64.c MIPS: Bonito64: Make Loongson independent from Bonito64 code. 2009-12-17 01:57:06 +00:00
ops-bridge.c
ops-emma2rh.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
ops-gt64xxx_pci0.c
ops-loongson2.c MIPS: Lemote 2F: Ensure atomic execution of _rdmsr and _wrmsr 2010-04-12 17:26:12 +01:00
ops-mace.c
ops-msc.c
ops-nile4.c
ops-pmcmsp.c MIPS: Set io_map_base for several PCI bridges lacking it 2010-07-26 19:08:19 +01:00
ops-pnx8550.c MIPS: Kill unused <asm/debug.h> inclusions 2008-10-15 12:46:52 +01:00
ops-rc32434.c
ops-sni.c
ops-titan-ht.c MIPS: PCI: RM9000 checkpatch cleanup 2010-08-05 13:25:44 +01:00
ops-titan.c
ops-tx3927.c [MIPS] TXx9: PCI error handling 2008-07-30 21:54:38 +01:00
ops-tx4927.c [MIPS] TXx9: PCI error handling 2008-07-30 21:54:38 +01:00
ops-vr41xx.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
pci-bcm47xx.c MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
pci-bcm63xx.c MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs. 2009-09-17 20:07:52 +02:00
pci-bcm63xx.h MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs. 2009-09-17 20:07:52 +02:00
pci-bcm1480.c MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
pci-bcm1480ht.c MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
pci-emma2rh.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
pci-ip27.c MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users. 2009-06-24 18:34:39 +01:00
pci-ip32.c
pci-lasat.c
pci-octeon.c MIPS: Cleanup switches with cases that can be merged 2010-02-27 12:53:14 +01:00
pci-rc32434.c MIPS: RC32434: Define io_map_base for PCI controller 2009-01-30 21:32:59 +00:00
pci-sb1250.c MIPS: SB1250: Include correct header and fix a warning 2010-04-30 20:52:43 +01:00
pci-tx4927.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
pci-tx4938.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
pci-tx4939.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
pci-vr41xx.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
pci-vr41xx.h Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
pci-yosemite.c MIPS: Set io_map_base for several PCI bridges lacking it 2010-07-26 19:08:19 +01:00
pci.c MIPS: Cobalt: convert legacy port addresses to GT-64111 bus addresses 2010-02-27 12:53:44 +01:00
pcie-octeon.c MIPS: Octeon: Allow more than 3.75GB of memory with PCIe 2010-08-05 13:26:31 +01:00