linux/arch/mips/pci
Linus Torvalds e5a32b5b21 Here are the main MIPS changes for 4.19.
An overview of the general architecture changes:
 
   - Massive DMA ops refactoring from Christoph Hellwig (huzzah for
     deleting crufty code!).
 
   - We introduce NT_MIPS_DSP & NT_MIPS_FP_MODE ELF notes & corresponding
     regsets to expose DSP ASE & floating point mode state respectively,
     both for live debugging & core dumps.
 
   - We better optimize our code by hard-coding cpu_has_* macros at
     compile time where their values are known due to the ISA revision
     that the kernel build is targeting.
 
   - The EJTAG exception handler now better handles SMP systems, where it
     was previously possible for CPUs to clobber a register value saved
     by another CPU.
 
   - Our implementation of memset() gained a couple of fixes for MIPSr6
     systems to return correct values in some cases where stores fault.
 
   - We now implement ioremap_wc() using the uncached-accelerated cache
     coherency attribute where supported, which is detected during boot,
     and fall back to plain uncached access where necessary. The
     MIPS-specific (and unused in tree) ioremap_uncached_accelerated() &
     ioremap_cacheable_cow() are removed.
 
   - The prctl(PR_SET_FP_MODE, ...) syscall is better supported for SMP
     systems by reworking the way we ensure remote CPUs that may be
     running threads within the affected process switch mode.
 
   - Systems using the MIPS Coherence Manager will now set the
     MIPS_IC_SNOOPS_REMOTE flag to avoid some unnecessary cache
     maintenance overhead when flushing the icache.
 
   - A few fixes were made for building with clang/LLVM, which
     now sucessfully builds kernels for many of our platforms.
 
   - Miscellaneous cleanups all over.
 
 And some platform-specific changes:
 
   - ar7 gained stubs for a few clock API functions to fix build failures
     for some drivers.
 
   - ath79 gained support for a few new SoCs, a few fixes & better
     gpio-keys support.
 
   - Ci20 now exposes its SPI bus using the spi-gpio driver.
 
   - The generic platform can now auto-detect a suitable value for
     PHYS_OFFSET based upon the memory map described by the device tree,
     allowing us to avoid wasting memory on page book-keeping for systems
     where RAM starts at a non-zero physical address.
 
   - Ingenic systems using the jz4740 platform code now link their
     vmlinuz higher to allow for kernels of a realistic size.
 
   - Loongson32 now builds the kernel targeting MIPSr1 rather than MIPSr2
     to avoid CPU errata.
 
   - Loongson64 gains a couple of fixes, a workaround for a write
     buffering issue & support for the Loongson 3A R3.1 CPU.
 
   - Malta now uses the piix4-poweroff driver to handle powering down.
 
   - Microsemi Ocelot gained support for its SPI bus & NOR flash, its
     second MDIO bus and can now be supported by a FIT/.itb image.
 
   - Octeon saw a bunch of header cleanups which remove a lot of
     duplicate or unused code.
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Merge tag 'mips_4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:
 "Here are the main MIPS changes for 4.19.

  An overview of the general architecture changes:

   - Massive DMA ops refactoring from Christoph Hellwig (huzzah for
     deleting crufty code!).

   - We introduce NT_MIPS_DSP & NT_MIPS_FP_MODE ELF notes &
     corresponding regsets to expose DSP ASE & floating point mode state
     respectively, both for live debugging & core dumps.

   - We better optimize our code by hard-coding cpu_has_* macros at
     compile time where their values are known due to the ISA revision
     that the kernel build is targeting.

   - The EJTAG exception handler now better handles SMP systems, where
     it was previously possible for CPUs to clobber a register value
     saved by another CPU.

   - Our implementation of memset() gained a couple of fixes for MIPSr6
     systems to return correct values in some cases where stores fault.

   - We now implement ioremap_wc() using the uncached-accelerated cache
     coherency attribute where supported, which is detected during boot,
     and fall back to plain uncached access where necessary. The
     MIPS-specific (and unused in tree) ioremap_uncached_accelerated() &
     ioremap_cacheable_cow() are removed.

   - The prctl(PR_SET_FP_MODE, ...) syscall is better supported for SMP
     systems by reworking the way we ensure remote CPUs that may be
     running threads within the affected process switch mode.

   - Systems using the MIPS Coherence Manager will now set the
     MIPS_IC_SNOOPS_REMOTE flag to avoid some unnecessary cache
     maintenance overhead when flushing the icache.

   - A few fixes were made for building with clang/LLVM, which now
     sucessfully builds kernels for many of our platforms.

   - Miscellaneous cleanups all over.

  And some platform-specific changes:

   - ar7 gained stubs for a few clock API functions to fix build
     failures for some drivers.

   - ath79 gained support for a few new SoCs, a few fixes & better
     gpio-keys support.

   - Ci20 now exposes its SPI bus using the spi-gpio driver.

   - The generic platform can now auto-detect a suitable value for
     PHYS_OFFSET based upon the memory map described by the device tree,
     allowing us to avoid wasting memory on page book-keeping for
     systems where RAM starts at a non-zero physical address.

   - Ingenic systems using the jz4740 platform code now link their
     vmlinuz higher to allow for kernels of a realistic size.

   - Loongson32 now builds the kernel targeting MIPSr1 rather than
     MIPSr2 to avoid CPU errata.

   - Loongson64 gains a couple of fixes, a workaround for a write
     buffering issue & support for the Loongson 3A R3.1 CPU.

   - Malta now uses the piix4-poweroff driver to handle powering down.

   - Microsemi Ocelot gained support for its SPI bus & NOR flash, its
     second MDIO bus and can now be supported by a FIT/.itb image.

   - Octeon saw a bunch of header cleanups which remove a lot of
     duplicate or unused code"

* tag 'mips_4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (123 commits)
  MIPS: Remove remnants of UASM_ISA
  MIPS: netlogic: xlr: Remove erroneous check in nlm_fmn_send()
  MIPS: VDSO: Force link endianness
  MIPS: Always specify -EB or -EL when using clang
  MIPS: Use dins to simplify __write_64bit_c0_split()
  MIPS: Use read-write output operand in __write_64bit_c0_split()
  MIPS: Avoid using array as parameter to write_c0_kpgd()
  MIPS: vdso: Allow clang's --target flag in VDSO cflags
  MIPS: genvdso: Remove GOT checks
  MIPS: Remove obsolete MIPS checks for DST node "chosen@0"
  MIPS: generic: Remove input symbols from defconfig
  MIPS: Delete unused code in linux32.c
  MIPS: Remove unused sys_32_mmap2
  MIPS: Remove nabi_no_regargs
  mips: dts: mscc: enable spi and NOR flash support on ocelot PCB123
  mips: dts: mscc: Add spi on Ocelot
  MIPS: Loongson: Merge load addresses
  MIPS: Loongson: Set Loongson32 to MIPS32R1
  MIPS: mscc: ocelot: add interrupt controller properties to GPIO controller
  MIPS: generic: Select MIPS_AUTO_PFN_OFFSET
  ...
2018-08-13 19:24:32 -07:00
..
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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 MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-cobalt.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-emma2rh.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-fuloong2e.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-ip32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fixup-jmr3927.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-lantiq.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-lemote2f.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-loongson3.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-malta.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fixup-mpc30x.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-pmcmsp.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-rbtx4927.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-rbtx4938.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-rc32434.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
fixup-sb1250.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
fixup-sni.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-tb0219.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-tb0226.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
fixup-tb0287.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
msi-octeon.c MIPS/PCI: Use for_pci_msi_entry() to access MSI device list 2015-07-22 18:37:42 +02:00
msi-xlp.c MIPS: Netlogic: Use chip_data for irq_chip methods 2015-09-03 12:08:03 +02:00
ops-bcm63xx.c MIPS: Remove useless parentheses 2014-11-24 07:44:49 +01:00
ops-bonito64.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
ops-bridge.c MIPS: Use !pci_is_root_bus(bus) in ops-bridge.c 2018-06-24 09:27:27 -07:00
ops-emma2rh.c MIPS: ops-emma2rh: Drop nonsensical db_assert 2015-08-26 15:23:35 +02:00
ops-gt64xxx_pci0.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
ops-lantiq.c MIPS: Change my email address 2016-05-13 14:02:18 +02:00
ops-loongson2.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
ops-loongson3.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ops-mace.c PCI: Remove unnecessary #includes of <asm/pci.h> 2015-06-08 07:56:09 -05:00
ops-msc.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
ops-nile4.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ops-pmcmsp.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
ops-rc32434.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
ops-sni.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
ops-tx3927.c mips: Update the email address of Geert Uytterhoeven 2014-06-02 16:34:41 +02:00
ops-tx4927.c MIPS: TXx9: Delete an unused variable in tx4927_pcibios_setup 2014-07-30 15:58:39 +02:00
ops-vr41xx.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
pci-alchemy.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci-ar71xx.c MIPS: pci: Audit and remove any unnecessary uses of module.h 2016-10-05 01:31:20 +02:00
pci-ar724x.c MIPS: ath79: get PCIe controller out of reset 2018-07-24 19:08:06 -07:00
pci-ar2315.c MIPS: ath25: use generic dma noncoherent ops 2018-06-24 09:27:27 -07:00
pci-bcm47xx.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci-bcm63xx.c MIPS: BCM63XX: add support for BCM3368 Cable Modem 2013-07-01 15:10:53 +02:00
pci-bcm63xx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci-bcm1480.c MIPS: Add struct pci_ops member names to initialization 2015-01-16 15:04:38 +01:00
pci-bcm1480ht.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
pci-emma2rh.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
pci-generic.c Update MIPS email addresses 2017-11-03 09:02:30 -07:00
pci-ip27.c arch: mips: pci: pci-ip27.c: Remove unused function 2018-06-24 09:27:27 -07:00
pci-ip32.c MIPS: make PCI_DMA_BUS_IS_PHYS=1 constant 2016-05-13 14:02:17 +02:00
pci-lantiq.c MIPS: pci: Audit and remove any unnecessary uses of module.h 2016-10-05 01:31:20 +02:00
pci-lantiq.h MIPS: Change my email address 2016-05-13 14:02:18 +02:00
pci-lasat.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci-legacy.c MIPS: PCI: Use dev_printk() when possible 2018-05-22 07:56:22 -05:00
pci-malta.c MIPS: CPS: Cluster support for topology functions 2017-08-30 00:57:28 +02:00
pci-mt7620.c MIPS: pci-mt7620: Enable PCIe on MT7688 2018-03-14 15:14:05 +00:00
pci-octeon.c MIPS: Octeon: move swiotlb declarations out of dma-coherence.h 2018-06-24 09:26:03 -07:00
pci-rc32434.c MIPS: RC32434: fix broken PCI resource initialization 2014-05-26 09:02:06 +02:00
pci-rt2880.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci-rt3883.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci-sb1250.c TTY:vt: convert remain take_over_console's users to do_take_over_console 2013-05-20 22:29:27 -07:00
pci-tx4927.c MIPS: TXx9: Modernize printing of kernel messages 2017-01-03 16:34:32 +01:00
pci-tx4938.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci-tx4939.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci-virtio-guest.c MIPS: paravirt: Add pci controller for virtio 2014-06-02 12:34:20 +02:00
pci-vr41xx.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
pci-vr41xx.h MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
pci-xlp.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci-xlr.c MIPS: PCI: Move map_irq() hooks out of initdata 2017-09-19 14:55:26 -05:00
pci.c MIPS: Fix off-by-one in pci_resource_to_user() 2018-07-16 08:22:31 -07:00
pcie-octeon.c MIPS: Octeon: Unify QLM data types in CIU header. 2018-07-03 16:00:43 -07:00