24 Apr, 2015
40 commits
-
Now we have converted to hierarchical irqdomains, so clean up unused code.
Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428978610-28986-10-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Clean up unused forward declarations in x86_init.h.
Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Yijing Wang
Link: http://lkml.kernel.org/r/1428978610-28986-9-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
There's no user of irq_alloc_hwirqs(), irq_alloc_hwirq(),
irq_free_hwirqs() and irq_free_hwirq() in x86 anymore, so remove
GENERIC_IRQ_LEGACY_ALLOC_HWIRQ and related code.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428978610-28986-8-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now there is no user of x86_io_apic_ops.eoi_ioapic_pin anymore, so remove
it.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Cc: Yijing Wang
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428978610-28986-7-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now there is no user of x86_io_apic_ops.set_affinity anymore, so remove
it.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Cc: Yijing Wang
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428978610-28986-6-git-send-email-jiang.liu@linux.intel.com -
Now there is no user of x86_io_apic_ops.setup_entry anymore, so remove it.
Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Cc: Yijing Wang
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428978610-28986-5-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now there is no user of x86_io_apic_ops.print_entries anymore, so remove
it.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Cc: Yijing Wang
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428978610-28986-4-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now nobody makes use of struct mp_pin_info, so remove it.
Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428978610-28986-3-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now we have converted to hierarchical irqdomain, so remove unused old
IOAPIC interfaces and code.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428978610-28986-2-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Convert IOAPIC driver to support and use hierarchical irqdomain
interfaces. It's a little big, but would break bisecting if we split
it into multiple patches.Fold in a patch from Andy Shevchenko
to make it bisectable.
http://lkml.org/lkml/2014/12/10/622Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Andy Shevchenko
Cc: sfi-devel@simplefirmware.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Len Brown
Cc: Pavel Machek
Cc: Grant Likely
Cc: Rob Herring
Cc: David Rientjes
Cc: David Cohen
Link: http://lkml.kernel.org/r/1428905519-23704-38-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Introduce several helper functions, which will be used to enable
hierarchical irqdomain for IOAPIC.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428905519-23704-37-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Simplify the way to print IOAPIC entry content, so we can remove
native_io_apic_print_entries(), intel_ir_io_apic_print_entries()
and x86_io_apic_ops.print_entries() later.Folded a patch from Thomas to fix errors in printed pin attributes,
http://www.spinics.net/lists/linux-tip-commits/msg26108.htmlSigned-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428905519-23704-36-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
To support legacy ISA IRQs, we need to preallocate irq_cfg structures
for legacy ISA IRQs. Refine the way to allocate irq_cfg for legacy ISA
IRQs, so it's more friendly for the hierarchical irqdomain
implementation.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428905519-23704-35-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Implement required callbacks to prepare for enabling hierarchical
irqdomains on IOAPICs. After the conversion we can remove quite some
code from the old implementation.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Jan Beulich
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428905519-23704-34-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Introduce helper functions to manipulate struct irq_alloc_info for
IOAPIC. Also add an extra parameter to IOAPIC interfaces to prepare
for hierarchical irqdomain. Function mp_set_gsi_attr() will be removed
once we have switched to hierarchical irqdomains.Signed-off-by: Jiang Liu
Tested-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Len Brown
Cc: Pavel Machek
Cc: Jan Beulich
Cc: Grant Likely
Cc: David Cohen
Link: http://lkml.kernel.org/r/1428905519-23704-33-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now there's no user of pre_init_apic_IRQ0(), so remove it.
Signed-off-by: Jiang Liu
Tested-by: Andy Shevchenko
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Jan Beulich
Cc: Grant Likely
Link: http://lkml.kernel.org/r/1428905519-23704-32-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Correctly indent code in function sfi_parse_mtmr().
Signed-off-by: Jiang Liu
Tested-by: Andy Shevchenko
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: H. Peter Anvin
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Jiri Kosina
Link: http://lkml.kernel.org/r/1428905519-23704-31-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
MID has no PIC, but depending on the platform it requires the
abt_timer, which is connected to irq0. The timer is set up at
late_time_init().But, looking at the MID code it seems, that there is no reason to do
so. The only code which might need the timer working is the TSC
calibration code, but thats a non issue on MID as that is using its
own empty calibration function. And check_timer() is not invoked
either because MID has no PIC and therefor no legacy irqs.So if you look at intel_mid_time_init() then you'll see that in the
ARAT case the timer setup is skipped already. So until the point where
x86_init.timers.setup_percpu_clockev() is called for the boot cpu
nothing really needs a timer on MID.According to the MID code the apbt horror is only used for moorestown.
Medfield and later use the local apic timer without the apbt nonsense.The best thing we can do is to drop moorestown support and get rid of
that apbt nonsense alltogether.I don't think anyone deeply cares about it not being supported from
3.18 on. The number of devices which sport a moorestown should be
pretty limited and the only relevant use case of those is to act as a
pocket heater with short battery life time. Its pretty pointless to
update kernels on pocket heaters except for bragging reasons.If someone at Intel really thinks that we need to keep moorestown
alive for other than documentary and sentimental reasons, then we can
move the apbt setup to x86_init.timers.setup_percpu_clockev(). At that
point the IOAPIC is setup already, so it should just work.Signed-off-by: Thomas Gleixner
Tested-by: Andy Shevchenko
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: H. Peter Anvin
Cc: Kuppuswamy Sathyanarayanan
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Rickard Strandqvist
Link: http://lkml.kernel.org/r/1428905519-23704-30-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now there's no user of irq_remapping_print_chip() anymore, so remove it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: Joerg Roedel
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-29-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Use common MSI interfaces instead of private implementations of the
same functionality to simplify DMAR/HPET driver implementation.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-28-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Implement irq_chip.irq_write_msi_msg for MSI/DMAR/HPET irq_chips, they
will be used to replace duplicated code.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-27-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Function irq_chip_compose_msi_msg() can achieve the same goal as
msi_update_msg(), so remove msi_update_msg().Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-26-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Simplify the way to deal with remapped MSI interrupts, so we can remove
irq_chip.irq_print_chip later. We simply change the name when the
setup detects that the parent domain is remapping.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-25-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Some irq_chip names use underscore, others use hyphen. So normalize them
to use hyphen as separator.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-24-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Enhance UV code to support hierarchical irqdomain, it helps to make
the architecture more clear.We construct hwirq based on mmr_blade and mmr_offset, but mmr_offset
has type unsigned long, it may exceed the range of irq_hw_number_t. So
help about the way to construct hwirq based on mmr_blade and
mmr_offset is welcomed!Folded a patch from Dimitri Sivanich to fix a bug
on UV platforms, please refer to:
http://lkml.org/lkml/2014/12/16/351Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Russ Anderson
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-23-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
We have slightly changed the architecture interfaces to support htirq
PCI driver. It's safe because currently Hypertransport interrupt is
only enabled on x86 platforms.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-22-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Enhance DMAR code to support hierarchical irqdomain, it helps to make
the architecture more clear.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-21-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Refine the interfaces to create IRQ for DMAR unit. It's a preparation
for converting DMAR IRQ to hierarchical irqdomain on x86.It also moves dmar_alloc_hwirq()/dmar_free_hwirq() from irq_remapping.h
to dmar.h. They are not irq_remapping specific.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Vinod Koul
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Tony Luck
Cc: Fenghua Yu
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-20-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now MSI interrupt has been converted to new hierarchical irqdomain
interfaces, so remove legacy MSI related code and interfaces.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Yijing Wang
Link: http://lkml.kernel.org/r/1428905519-23704-19-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now MSI interrupt has been converted to new hierarchical irqdomain
interfaces, so remove legacy MSI related code and interfaces.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Rafael J. Wysocki
Cc: Joerg Roedel
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Cc: Yijing Wang
Link: http://lkml.kernel.org/r/1428905519-23704-18-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now MSI interrupt has been converted to new hierarchical irqdomain
interfaces, so remove legacy MSI related code.Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-17-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Now MSI interrupt has been converted to new hierarchical irqdomain
interfaces, so remove legacy MSI related code.Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-16-git-send-email-jiang.liu@linux.intel.com -
DMAR interrupt won't be remapped by interrupt remapping hardware,
so directly call native_compose_msi_msg() for DMAR IRQ to compose MSI
message data. This will help to simplify MSI code later.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Link: http://lkml.kernel.org/r/1428905519-23704-15-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Enhance MSI code to support hierarchical irqdomains, it helps to make
the architecture more clear.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Joerg Roedel
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-14-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Joerg Roedel
Cc: Greg Kroah-Hartman
Cc: Srivatsa S. Bhat
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Andy Lutomirski
Link: http://lkml.kernel.org/r/1428905519-23704-13-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-12-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Enhance Intel interrupt remapping driver to support hierarchical
irqdomains. Implement intel_ir_chip to support stacked irq_chip.Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Cc: David Woodhouse
Link: http://lkml.kernel.org/r/1428905519-23704-11-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Prepare for the conversion to hierarchical irqdomains by changing
function prototypes. No functional changes.Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-10-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Introduce new interfaces for interrupt remapping drivers to support
hierarchical irqdomains:1) irq_remapping_get_ir_irq_domain(): get irqdomain associated with an
interrupt remapping unit. IOAPIC/HPET drivers use this interface to
get parent interrupt remapping irqdomain.2) irq_remapping_get_irq_domain(): get irqdomain for an IRQ allocation.
This is mainly used to support MSI irqdomain. We must build one MSI
irqdomain for each interrupt remapping unit. MSI driver calls this
interface to get MSI irqdomain associated with an IR irqdomain which
manages the PCI devices. In a further step we will store the irqdomain
pointer in the device struct to avoid this call in the irq allocation
path.Architecture specific hooks:
1) arch_get_ir_parent_domain(): get parent irqdomain for IR irqdomain,
which is x86_vector_domain on x86 platforms.
2) arch_create_msi_irq_domain(): create an MSI irqdomain associated with
the interrupt remapping unit.We also add following callbacks into struct irq_remap_ops:
struct irq_domain *(*get_ir_irq_domain)(struct irq_alloc_info *);
struct irq_domain *(*get_irq_domain)(struct irq_alloc_info *);Once all clients of IR have been converted to the new hierarchical irqdomain
interfaces, we will:
1) Remove set_ioapic_entry, set_affinity, free_irq, compose_msi_msg,
msi_alloc_irq, msi_setup_irq, setup_hpet_msi from struct remap_osp
2) Remove setup_ioapic_remapped_entry, free_remapped_irq,
compose_remapped_msi_msg, setup_hpet_msi_remapped, setup_remapped_irq.
3) Simplify x86_io_apic_ops and x86_msi.We can achieve a way clearer architecture with all these changes
applied.Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-9-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner -
Use new irqdomain interfaces to allocate/free IRQ for DMAR and interrupt
remapping, so we can remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later.The private definitions of irq_alloc_hwirqs()/irq_free_hwirqs() are a
temporary solution, they will be removed once we have converted the
interrupt remapping driver to use irqdomain framework.Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: David Cohen
Cc: Sander Eikelenboom
Cc: David Vrabel
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Joerg Roedel
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Dimitri Sivanich
Cc: Joerg Roedel
Link: http://lkml.kernel.org/r/1428905519-23704-8-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner
