| 6b2fd7efeb888fa781c1f767de6c36497ac1596b |
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07-Sep-2014 |
Alexander Gordeev <agordeev@redhat.com> |
PCI/MSI/PPC: Remove arch_msi_check_device()
Move MSI checks from arch_msi_check_device() to arch_setup_msi_irqs().
This makes the code more compact and allows removing
arch_msi_check_device() from generic MSI code.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
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| ec775d0e70eb6b7116406b3441cb8501c2849dd2 |
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25-Mar-2011 |
Thomas Gleixner <tglx@linutronix.de> |
powerpc: Convert to new irq_* function names
Scripted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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| 835c0553eb151588b6a1b52b28ecbbd59f7ff052 |
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08-Mar-2011 |
Lennert Buytenhek <buytenh@wantstofly.org> |
powerpc: mpic irq_data conversion.
Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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| 1c9db52534a2c0e9776788cd34ccc193289fc18c |
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28-Sep-2010 |
Thomas Gleixner <tglx@linutronix.de> |
pci: Convert msi to new irq_chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Russell King <linux@arm.linux.org.uk>
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| 7a96c6b22efbd84e195836e192a3ce478cd6e14c |
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14-Dec-2009 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
powerpc: Fix MSI support on U4 bridge PCIe slot
On machines using the Apple U4 bridge (AKA IBM CPC945) PCIe interface such
as the latest generation G5 machines x16 slot or the x16 slot of the
PowerStation, MSIs are currently broken (and will oops when enabling).
This fixes the oops and implements proper support for those. Instead of
using the PCIe <-> HT bridge conversion, on such slots we need to use
a bunch of magic registers in the bridge as the MSI target, encoding
the interrupt number in the low bits of the address itself
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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| b27df67248d3ae61d7814f18e363954254935090 |
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19-Nov-2009 |
Thomas Gleixner <tglx@linutronix.de> |
powerpc: Fixup last users of irq_chip->typename
The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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| 25235f712b680d00756a73ee64289137989fc6fd |
|
06-Aug-2008 |
Michael Ellerman <michael@ellerman.id.au> |
powerpc: Convert the MPIC MSI code to use msi_bitmap
This affects the U3 MSI code as well as the PASEMI MSI code. We keep
some of the MPIC routines as helpers, and also the U3 best-guess
reservation logic. The rest is replaced by the generic code.
And a few printk format changes due to hwirq type change.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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| 9d5f525b86453da921360727112161254accc8c1 |
|
24-Apr-2008 |
Roel Kluin <12o3l@tiscali.nl> |
[POWERPC] mpic_u3msi: Failed allocation unnoticed
bitmap_find_free_region(), called by mpic_msi_alloc_hwirqs() may return
signed, but hwirq is unsigned. A failed allocation remains unnoticed.
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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| 21ccdd31e9c70f42b00d9ea152f6c4e0ff3f536e |
|
20-Sep-2007 |
Michael Ellerman <michael@ellerman.id.au> |
[POWERPC] Inline u3msi_compose_msi_msg()
In the MPIC U3 MSI code, we call u3msi_compose_msi_msg() once for each MSI.
This is overkill, as the address is per pci device, not per MSI. So setup
the address once, and just set the data per MSI.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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| d9303d662fa3fca8a6d27dee82b961a5f5524f20 |
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20-Sep-2007 |
Michael Ellerman <michael@ellerman.id.au> |
[POWERPC] Simplify error logic in u3msi_setup_msi_irqs()
u3msi_setup_msi_irqs() doesn't need to call teardown() itself,
the generic code will do this for us as long as we return a non
zero value.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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| 17b5ee04c09a158129eb538933eae7be956190e9 |
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17-Sep-2007 |
Olof Johansson <olof@lixom.net> |
[POWERPC] Support setting affinity for U3/U4 MSI sources
Hook up affinity-setting for U3/U4 MSI interrupt sources.
Tested on Quad G5 with myri10ge.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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| 05af7bd2d75e5098021864d83fbb831111755fa0 |
|
07-May-2007 |
Michael Ellerman <michael@ellerman.id.au> |
[POWERPC] MPIC U3/U4 MSI backend
MPIC U3/U4 MSI backend. Based on code from Segher, heavily hacked by me.
This only deals with MSI on U3/U4 MPICs, aka. CPC 9x5.
If we find a U3/U4 then we enable this backend, ie. take over the ppc_md
MSI hooks. We might need more elaborate logic in future to decide which
backend is enabled.
We need our own irq_chip so that we can do MSI masking/unmasking on
the device itself. We also need to mask explicitly on shutdown to make
sure we don't get bitten by lazy-disable semantics.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
|