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path: root/drivers/parisc/lba_pci.c
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2018-03-27parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail modeHelge Deller
Carlo Pisani noticed that his C3600 workstation behaved unstable during heavy I/O on the PCI bus with a VIA VT6421 IDE/SATA PCI card. To avoid such instability, this patch switches the LBA PCI bus from Hard Fail mode into Soft Fail mode. In this mode the bus will return -1UL for timed out MMIO transactions, which is exactly how the x86 (and most other architectures) PCI busses behave. This patch is based on a proposal by Grant Grundler and Kyle McMartin 10 years ago: https://www.spinics.net/lists/linux-parisc/msg01027.html Cc: Carlo Pisani <carlojpisani@gmail.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Reviewed-by: Grant Grundler <grantgrundler@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2017-12-17parisc: Hide Diva-built-in serial aux and graphics cardHelge Deller
Diva GSP card has built-in serial AUX port and ATI graphic card which simply don't work and which both don't have external connectors. User Guides even mention that those devices shouldn't be used. So, prevent that Linux drivers try to enable those devices. Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> # v3.0+
2017-08-24parisc: Fix up devices below a PCI-PCI MegaRAID controller bridgeHelge Deller
A MegaRAID PCI card in my rp5470 acts as PCI-PCI bridge. Resource allocation for PCI devices behind such a bridge is quite incomplete, so that syslog reports those warnings: LBA 0:10: PCI host bridge to bus 0000:50 pci_bus 0000:50: root bus resource [io 0x80000-0x8ffff] (bus address [0x0000-0xffff]) pci_bus 0000:50: root bus resource [mem 0xffffffff94000000-0xffffffff95ffffff] (bus address [0x94000000-0x95ffffff]) pci_bus 0000:50: root bus resource [bus 50-57] pci 0000:50:00.0: [8086:0964] type 01 class 0x060400 pci 0000:50:00.1: [8086:1960] type 00 class 0x0e0001 pci 0000:50:00.1: reg 0x10: [mem 0x00000000-0x003fffff pref] pci 0000:50:00.1: reg 0x30: [mem 0x00000000-0x00007fff pref] pci 0000:50:00.0: Changing bridge control from 0x00000000 to 0x00000023 pci_bus 0000:51: busn_res: can not insert [bus 51-ff] under [bus 50-57] (conflicts with (null) [bus 50-57]) pci 0000:50:00.0: PCI bridge to [bus 51-ff] pci 0000:50:00.0: bridge window [io 0x80000-0x80fff] pci 0000:50:00.0: bridge window [mem 0x00000000-0x000fffff] pci 0000:50:00.0: bridge window [mem 0x00000000-0x000fffff pref] pci 0000:50:00.0: can't claim BAR 14 [mem 0x00000000-0x000fffff]: no compatible bridge window pci 0000:50:00.0: can't claim BAR 15 [mem 0x00000000-0x000fffff pref]: no compatible bridge window pci 0000:50:00.0: can't claim BAR 16 [??? 0x00000000 flags 0x0]: no compatible bridge window pci_bus 0000:51: busn_res: [bus 51-ff] end is updated to 51 pci 0000:50:00.0: BAR 16: [??? 0x00000000 flags 0x20000000] has bogus alignment pci 0000:50:00.1: BAR 0: assigned [mem 0xffffffff94000000-0xffffffff943fffff pref] pci 0000:50:00.0: BAR 14: assigned [mem 0xffffffff94400000-0xffffffff944fffff] pci 0000:50:00.0: BAR 15: assigned [mem 0xffffffff94500000-0xffffffff945fffff pref] pci 0000:50:00.1: BAR 6: assigned [mem 0xffffffff94600000-0xffffffff94607fff pref] pci 0000:50:00.0: PCI bridge to [bus 51] pci 0000:50:00.0: bridge window [io 0x80000-0x80fff] pci 0000:50:00.0: bridge window [mem 0xffffffff94400000-0xffffffff944fffff] pci 0000:50:00.0: bridge window [mem 0xffffffff94500000-0xffffffff945fffff pref] The patch below tries to improve the resource allocation. Output is now: LBA 0:10: PCI host bridge to bus 0000:50 pci_bus 0000:50: root bus resource [io 0x80000-0x8ffff] (bus address [0x0000-0xffff]) pci_bus 0000:50: root bus resource [mem 0xffffffff94000000-0xffffffff95ffffff] (bus address [0x94000000-0x95ffffff]) pci_bus 0000:50: root bus resource [bus 50-57] pci 0000:50:00.0: Changing bridge control from 0x00000000 to 0x00000023 pci 0000:50:00.0: PCI bridge to [bus 51-ff] pci 0000:50:00.1: BAR 0: assigned [mem 0xffffffff94000000-0xffffffff943fffff pref] pci 0000:50:00.1: BAR 6: assigned [mem 0xffffffff94400000-0xffffffff94407fff pref] pci 0000:50:00.0: PCI bridge to [bus 51] pci 0000:50:00.0: bridge window [io 0x80000-0x80fff] Signed-off-by: Helge Deller <deller@gmx.de>
2017-08-22parisc: Fix section mismatches in parisc core driversHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2017-07-03parisc: DMA API: return error instead of BUG_ON for dma ops on non dma devsThomas Bogendoerfer
Enabling parport pc driver on a B2600 (and probably other 64bit PARISC systems) produced following BUG: CPU: 0 PID: 1 Comm: swapper Not tainted 4.12.0-rc5-30198-g1132d5e #156 task: 000000009e050000 task.stack: 000000009e04c000 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001101111111100001111 Not tainted r00-03 000000ff0806ff0f 000000009e04c990 0000000040871b78 000000009e04cac0 r04-07 0000000040c14de0 ffffffffffffffff 000000009e07f098 000000009d82d200 r08-11 000000009d82d210 0000000000000378 0000000000000000 0000000040c345e0 r12-15 0000000000000005 0000000040c345e0 0000000000000000 0000000040c9d5e0 r16-19 0000000040c345e0 00000000f00001c4 00000000f00001bc 0000000000000061 r20-23 000000009e04ce28 0000000000000010 0000000000000010 0000000040b89e40 r24-27 0000000000000003 0000000000ffffff 000000009d82d210 0000000040c14de0 r28-31 0000000000000000 000000009e04ca90 000000009e04cb40 0000000000000000 sr00-03 0000000000000000 0000000000000000 0000000000000000 0000000000000000 sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000404aece0 00000000404aece4 IIR: 03ffe01f ISR: 0000000010340000 IOR: 000001781304cac8 CPU: 0 CR30: 000000009e04c000 CR31: 00000000e2976de2 ORIG_R28: 0000000000000200 IAOQ[0]: sba_dma_supported+0x80/0xd0 IAOQ[1]: sba_dma_supported+0x84/0xd0 RP(r2): parport_pc_probe_port+0x178/0x1200 Cause is a call to dma_coerce_mask_and_coherenet in parport_pc_probe_port, which PARISC DMA API doesn't handle very nicely. This commit gives back DMA_ERROR_CODE for DMA API calls, if device isn't capable of DMA transaction. Cc: <stable@vger.kernel.org> # v3.13+ Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Helge Deller <deller@gmx.de>
2016-01-12parisc: Initialize PCI bridge cache line and default latencyHelge Deller
PCI controllers and pci-pci bridges may have not been fully initialized regarding cache line and defaul latency. This partly reverts commit 5f0e9b4 ("parisc: Remove unused pcibios_init_bus()") Signed-off-by: Helge Deller <deller@gmx.de>
2015-10-22parisc: reduce syslog debug outputHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2015-09-15PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code"Bjorn Helgaas
Revert dff22d2054b5 ("PCI: Call pci_read_bridge_bases() from core instead of arch code"). Reading PCI bridge windows is not arch-specific in itself, but there is PCI core code that doesn't work correctly if we read them too early. For example, Hannes found this case on an ARM Freescale i.mx6 board: pci_bus 0000:00: root bus resource [mem 0x01000000-0x01efffff] pci 0000:00:00.0: PCI bridge to [bus 01-ff] pci 0000:00:00.0: BAR 8: no space for [mem size 0x01000000] (mem window) pci 0000:01:00.0: BAR 2: failed to assign [mem size 0x00200000] pci 0000:01:00.0: BAR 1: failed to assign [mem size 0x00004000] pci 0000:01:00.0: BAR 0: failed to assign [mem size 0x00000100] The 00:00.0 mem window needs to be at least 3MB: the 01:00.0 device needs 0x204100 of space, and mem windows are megabyte-aligned. Bus sizing can increase a bridge window size, but never *decrease* it (see d65245c3297a ("PCI: don't shrink bridge resources")). Prior to dff22d2054b5, ARM didn't read bridge windows at all, so the "original size" was zero, and we assigned a 3MB window. After dff22d2054b5, we read the bridge windows before sizing the bus. The firmware programmed a 16MB window (size 0x01000000) in 00:00.0, and since we never decrease the size, we kept 16MB even though we only needed 3MB. But 16MB doesn't fit in the host bridge aperture, so we failed to assign space for the window and the downstream devices. I think this is a defect in the PCI core: we shouldn't rely on the firmware to assign sensible windows. Ray reported a similar problem, also on ARM, with Broadcom iProc. Issues like this are too hard to fix right now, so revert dff22d2054b5. Reported-by: Hannes <oe5hpm@gmail.com> Reported-by: Ray Jui <rjui@broadcom.com> Link: http://lkml.kernel.org/r/CAAa04yFQEUJm7Jj1qMT57-LG7ZGtnhNDBe=PpSRa70Mj+XhW-A@mail.gmail.com Link: http://lkml.kernel.org/r/55F75BB8.4070405@broadcom.com Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2015-09-08PCI,parisc: Enable 64-bit bus addresses on PA-RISCHelge Deller
Commit 3a9ad0b ("PCI: Add pci_bus_addr_t") unconditionally introduced usage of 64-bit PCI bus addresses on all 64-bit platforms which broke PA-RISC. It turned out that due to enabling the 64-bit addresses, the PCI logic decided to use the GMMIO instead of the LMMIO region. This commit simply disables registering the GMMIO and thus we fall back to use the LMMIO region as before. Reverts commit 45ea2a5fed6dacb9bb0558d8b21eacc1c45d5bb4 ("PCI: Don't use 64-bit bus addresses on PA-RISC") To: linux-parisc@vger.kernel.org Cc: linux-pci@vger.kernel.org Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Meelis Roos <mroos@linux.ee> Cc: stable@vger.kernel.org # v3.19+ Signed-off-by: Helge Deller <deller@gmx.de>
2015-07-23PCI: Call pci_read_bridge_bases() from core instead of arch codeLorenzo Pieralisi
When we scan a PCI bus, we read PCI-PCI bridge window registers with pci_read_bridge_bases() so we can validate the resource hierarchy. Most architectures call pci_read_bridge_bases() from pcibios_fixup_bus(), but PCI-PCI bridges are not arch-specific, so this doesn't need to be in arch-specific code. Call pci_read_bridge_bases() directly from the PCI core instead of from arch code. For alpha and mips, we now call pci_read_bridge_bases() always; previously we only called it if PCI_PROBE_ONLY was set. [bhelgaas: changelog] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Ralf Baechle <ralf@linux-mips.org> CC: James E.J. Bottomley <jejb@parisc-linux.org> CC: Michael Ellerman <mpe@ellerman.id.au> CC: Bjorn Helgaas <bhelgaas@google.com> CC: Richard Henderson <rth@twiddle.net> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: David Howells <dhowells@redhat.com> CC: Russell King <linux@arm.linux.org.uk> CC: Tony Luck <tony.luck@intel.com> CC: David S. Miller <davem@davemloft.net> CC: Ingo Molnar <mingo@redhat.com> CC: Guenter Roeck <linux@roeck-us.net> CC: Michal Simek <monstr@monstr.eu> CC: Chris Zankel <chris@zankel.net>
2015-01-16parisc/PCI: Clip bridge windows to fit in upstream windowsYinghai Lu
Every PCI-PCI bridge window should fit inside an upstream bridge window because orphaned address space is unreachable from the primary side of the upstream bridge. If we inherit invalid bridge windows that overlap an upstream window from firmware, clip them to fit and update the bridge accordingly. [bhelgaas: changelog] Link: https://bugzilla.kernel.org/show_bug.cgi?id=85491 Reported-by: Marek Kordik <kordikmarek@gmail.com> Fixes: 5b28541552ef ("PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources") Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: "James E.J. Bottomley" <jejb@parisc-linux.org> CC: Helge Deller <deller@gmx.de> CC: linux-parisc@vger.kernel.org
2013-07-25PCI: Delay enabling bridges until they're neededYinghai Lu
We currently enable PCI bridges after scanning a bus and assigning resources. This is often done in arch code. This patch changes this so we don't enable a bridge until necessary, i.e., until we enable a PCI device behind the bridge. We do this in the generic pci_enable_device() path, so this also removes the arch-specific code to enable bridges. [bhelgaas: changelog] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2013-07-09parisc: fix LMMIO mismatch between PAT length and MASK registerHelge Deller
The LMMIO length reported by PAT and the length given by the LBA MASK register are not consistent. This leads e.g. to a not-working ATI FireGL card with the radeon DRM driver since the memory can't be mapped. Fix this by correctly adjusting the resource sizes. Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> # 3.10
2013-06-01parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus ↵Helge Deller
resources (v2) commit dc7dce280a Author: Bjorn Helgaas <bhelgaas@google.com> Date: Fri Oct 28 16:27:27 2011 -0600 parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus resources Supply root bus resources to pci_create_root_bus() so they're correct immediately. This fixes the problem of "early" and "header" quirks seeing incorrect root bus resources. added tests for elmmio_space.start while it should use elmmio_space.flags. This for example led to incorrect resource assignments and a non-working stifb framebuffer on most parisc machines. LBA 10:1: PCI host bridge to bus 0000:01 pci_bus 0000:01: root bus resource [io 0x12000-0x13fff] (bus address [0x2000-0x3fff]) pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff]) pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff]) pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0] Signed-off-by: Helge Deller <deller@gmx.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2013-06-01parisc/PCI: Set type for LBA bus_num resourceBjorn Helgaas
The non-PAT resource probing code failed to set the type of the LBA bus_num resource (30aa80da43 "parisc/PCI: register busn_res for root buses" did the corresponding thing for the PAT case). This causes incorrect resource assignments and a non-working stifb framebuffer on most parisc machines. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Helge Deller <deller@gmx.de>
2013-01-03Drivers: misc: remove __dev* attributes.Greg Kroah-Hartman
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-22parisc/PCI: Use list_for_each_entry() for bus->devices traversalBjorn Helgaas
Replace list_for_each() + pci_dev_b() with the simpler list_for_each_entry(). Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Yinghai Lu <yinghai@kernel.org> CC: linux-parisc@vger.kernel.org
2012-08-22parisc/PCI: Enable PERR/SERR on all devicesBjorn Helgaas
Previously, we enabled PERR & SERR for the first device on the bus, but left other devices alone. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Yinghai Lu <yinghai@kernel.org> CC: linux-parisc@vger.kernel.org
2012-06-13parisc/PCI: register busn_res for root busesYinghai Lu
Add the host bridge bus number aperture to the resource list. Like the MMIO and I/O port apertures, this is used when assigning resources to hot-added devices or in the case of conflicts. [bhelgaas: changelog, set flags directly, at LBA bus_num init] CC: Kyle McMartin <kyle@mcmartin.ca> CC: Helge Deller <deller@gmx.de> CC: linux-parisc@vger.kernel.org Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-06-13PCI: replace struct pci_bus secondary/subordinate with busn_resYinghai Lu
Replace the struct pci_bus secondary/subordinate members with the struct resource busn_res. Later we'll build a resource tree of these bus numbers. [bhelgaas: changelog] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-03-28Merge tag 'split-asm_system_h-for-linus-20120328' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system Pull "Disintegrate and delete asm/system.h" from David Howells: "Here are a bunch of patches to disintegrate asm/system.h into a set of separate bits to relieve the problem of circular inclusion dependencies. I've built all the working defconfigs from all the arches that I can and made sure that they don't break. The reason for these patches is that I recently encountered a circular dependency problem that came about when I produced some patches to optimise get_order() by rewriting it to use ilog2(). This uses bitops - and on the SH arch asm/bitops.h drags in asm-generic/get_order.h by a circuituous route involving asm/system.h. The main difficulty seems to be asm/system.h. It holds a number of low level bits with no/few dependencies that are commonly used (eg. memory barriers) and a number of bits with more dependencies that aren't used in many places (eg. switch_to()). These patches break asm/system.h up into the following core pieces: (1) asm/barrier.h Move memory barriers here. This already done for MIPS and Alpha. (2) asm/switch_to.h Move switch_to() and related stuff here. (3) asm/exec.h Move arch_align_stack() here. Other process execution related bits could perhaps go here from asm/processor.h. (4) asm/cmpxchg.h Move xchg() and cmpxchg() here as they're full word atomic ops and frequently used by atomic_xchg() and atomic_cmpxchg(). (5) asm/bug.h Move die() and related bits. (6) asm/auxvec.h Move AT_VECTOR_SIZE_ARCH here. Other arch headers are created as needed on a per-arch basis." Fixed up some conflicts from other header file cleanups and moving code around that has happened in the meantime, so David's testing is somewhat weakened by that. We'll find out anything that got broken and fix it.. * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits) Delete all instances of asm/system.h Remove all #inclusions of asm/system.h Add #includes needed to permit the removal of asm/system.h Move all declarations of free_initmem() to linux/mm.h Disintegrate asm/system.h for OpenRISC Split arch_align_stack() out from asm-generic/system.h Split the switch_to() wrapper out of asm-generic/system.h Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h Create asm-generic/barrier.h Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h Disintegrate asm/system.h for Xtensa Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] Disintegrate asm/system.h for Tile Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for SH Disintegrate asm/system.h for Score Disintegrate asm/system.h for S390 Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PA-RISC Disintegrate asm/system.h for MN10300 ...
2012-03-28Remove all #inclusions of asm/system.hDavid Howells
Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
2012-02-23parisc/PCI: get rid of device resource fixupsBjorn Helgaas
Tell the PCI core about host bridge address translation so it can take care of bus-to-resource conversion for us. CC: linux-parisc@vger.kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-01-06parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus resourcesBjorn Helgaas
Supply root bus resources to pci_create_root_bus() so they're correct immediately. This fixes the problem of "early" and "header" quirks seeing incorrect root bus resources. CC: linux-parisc@vger.kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06parisc/PCI: lba: use pci_create_bus() instead of pci_scan_bus_parented()Bjorn Helgaas
No functional change here; just converting from pci_scan_bus_parented() to pci_create_bus() to make a future patch simpler. CC: linux-parisc@vger.kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06parisc/PCI: lba: deal with LMMIO/PAT overlaps before creating PCI root busBjorn Helgaas
This moves the truncate_pat_collision() call out of the pcibios_fixup_bus() path so that when a future patch builds a list of root bus resources for pci_create_bus(), it can use the truncated LMMIO range. truncate_pat_collision() used to be called in this path: pci_scan_bus_parented pci_create_bus pci_scan_child_bus pcibios_fixup_bus lba_fixup_bus truncate_pat_collision All of the PAT and lba_dev resource setup must be done before we call pci_scan_bus_parented(), so it should be safe to move the truncate_pat_collision() to just before pci_scan_bus_parented(). CC: linux-parisc@vger.kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-08-02parisc: fixed faulty check in lba_pciStoyan Gaydarov
This patche fixes a spelling error that has resulted from copy and pasting. The location of the error was found using a semantic patch but the semantic patch was not trying to find these errors. After looking things over it seemed logical that this change was needed. Signed-off-by: Stoyan Gaydarov <sgayda2@uiuc.edu> Signed-off-by: Helge Deller <deller@gmx.de>
2009-07-03parisc: Fix gcc 4.4 warning in lba_pci.cGrant Grundler
gcc 4.4 warns about: drivers/parisc/lba_pci.c: In function 'lba_pat_resources': drivers/parisc/lba_pci.c:1099: warning: the frame size of 8280 bytes is larger than 4096 bytes The problem is we declare two large structures on the stack. They don't need to be on the stack since they are only used during LBA initialization (which is serialized). Moving to be "static". Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-07-03parisc: advertise PCI devs after "assign_resources"Grant Grundler
Alex Chiang asked me why PARISC was calling pci_bus_add_devices() and pci_bus_assign_resources() in the opposite order from everyone else. No reason and I couldn't see any data dependency. Patch below applies cleanly to 2.6.30-rc2. Later, I suspected the code worked only because no drivers would be loaded/ready until much later in the system initialization sequence. Tested "LBA" code on J6000 (32-bit) and A500 (64-bit SMP) with 2.6.30-rc2. Not tested with any Dino controllers. Not tested with PCI-PCI Bridge (TBD). Reported-by: Alex Chiang <achiang@hp.com> Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-03-13parisc: fix wrong assumption about bus->selfGrant Grundler
Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> posted a patch series to linux-pci to fix a wrong assumption about pci_bus->self==NULL for all PCI host bus controllers. While PARISC platforms to not behave this way, I prefer to have the code consistent across architectures. The following patch replaces pci_bus->self with pci_bus->parent when used as a test to check for "root bus controller". Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-01-05parisc: drivers/parisc/: make code staticAdrian Bunk
Make the following needlessly global code static: - asp.c: asp_init_chip() - ccio-dma.c: ccio_io_pdir_entry() - dino.c: struct dino_port_ops - dino.c: struct dino_bios_ops - hppb.c: struct hppb_card_head - lasi.c: lasi_led_init() - lasi.c: lasi_init_chip() - lba_pci.c: struct lba_bios_ops - sba_iommu.c: sba_io_pdir_entry() - sba_iommu.c: sba_driver_callback() - sba_iommu.c: sba_driver_callback() - wax.c: wax_init_chip() Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15drivers/parisc: replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-12-06[PARISC] lba_pci: pci_claim_resources disabled expansion romsKyle McMartin
radeonfb was HPMC-ing my C8000 by trying to map its expansion rom from IO_VIEW, instead of PA_VIEW. Fix seems to be to ensure that its disabled ROM is properly inserted into the resource tree. FIXME: this will result in a whinging printk for cards which share expansion ROMS, such as a quad tulip. Thankfully, it isn't harmful. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18[PARISC] Fix infinite loop in /proc/iomemMatthew Wilcox
pcibios_link_hba_resources() could corrupt the resource tree by inserting resources in the wrong place. Fix this by calling pci_claim_resource() for PCI-PCI bridges. Delete pcibios_link_hba_resources as we shouldn't need it any more. Also get rid of lba_claim_dev_resources() and just call pci_claim_resource() directly. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-17[PARISC] lba_pci format warningsMatthew Wilcox
Fix resource_size_t warnings in a variety of ways Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-12-08[PARISC] Fix PCI bus numbering in the presence of Cardbus bridgesMatthew Wilcox
Firmware ignores Cardbus bridges, so when Linux assigns bus numbers, it must override firmware's notion of what the busses are numbered. This is not sufficient to support the Cardbus bridge as there is also no interrupt routing table entry for them. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-12-08[PARISC] sparse fixesMatthew Wilcox
0/NULL, missing __user, missing __iomem, non-ANSI prototype. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Move LBA and SBA register defines to the common ropes.hKyle McMartin
header. This will allow the use of more constants in the agpgart driver. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Create shared <asm/ropes.h> headerKyle McMartin
Pull out struct sba_device and struct lba_device into a common ropes.h header. Also fold the parisc portion of iosapic.h into this file. (Then delete the useless portion of iosapic.h) Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Stash the lba_device in its struct device drvdataKyle McMartin
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-10-04[PARISC] Pretty print the name of the lba type on kernel bootKyle McMartin
(it's pretty useless telling a user they have a whole bunch of TR%d.%d LBAs) Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-03-30[PARISC] I/O-Space must be ioremap_nocache()'dHelge Deller
Addresses in F-space must be accessed uncached on most parisc machines. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-01-22[PARISC] Use kzalloc and other janitor-style cleanupsHelge Deller
Helge, o Convert a bunch of kmalloc/memset uses to kzalloc. o pci.c: Add some __read_mostly annotations. o pci.c: Move constant pci_post_reset_delay to asm/pci.h o grfioctl.h: Add A4450A to comment of CRT_ID_VISUALIZE_EG. o Add some consts to perf.c/perf_images.h Matthew, o sticore.c: Add some consts to suppress compile warnings. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-01-10[PARISC] Truncate overlapping PAT PDC reported rangesGrant Grundler
Deal with overlapping LBA MMIO resources, rp3440 PDC BUG: PDC reports lmmio range for the last rope that overlaps with the CPU HPA. Console output was: ... Found devices: 1. Storm Peak Fast at 0xfffffffffe798000 [152] { 0, 0x0, 0x889, 0x00004 } 2. Storm Peak Fast at 0xfffffffffe799000 [153] { 0, 0x0, 0x889, 0x00004 } ... FAILED: lba_fixup_bus() request for lmmio_space [fffffffff0000000/fffffffffecffffe] Output is now: LBA: Truncating lmmio_space [fffffffff0000000/fffffffffecffffe] to [fffffffff0000000,fffffffffe797fff] My only concern with this patch is how C8000 (PAT PDC) will report elmmio ranges when a gfx card is installed. I'll have to test this another day. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: James Bottomley <jejb@parisc-linux.org> Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-01-10[PARISC] Add __read_mostly section for pariscHelge Deller
Flag a whole bunch of things as __read_mostly on parisc. Also flag a few branches as unlikely() and cleanup a bit of code. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Convert parisc_device to use struct resource for hpaMatthew Wilcox
Convert pa_dev->hpa from an unsigned long to a struct resource. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Fix up users of ->hpa to use ->hpa.start instead. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-06-27[PATCH] acpi bridge hotadd: ACPI based root bridge hot-addRajesh Shah
When you hot-plug a (root) bridge hierarchy, it may have p2p bridges and devices attached to it that have not been configured by firmware. In this case, we need to configure the devices before starting them. This patch separates device start from device scan so that we can introduce the configuration step in the middle. I kept the existing semantics for pci_scan_bus() since there are a huge number of callers to that function. Also, I have no way of testing the changes I made to the parisc files, so this needs review by those folks. Sorry for the massive cross-post, this touches files in many different places. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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