linux-toradex.git/arch/powerpc/sysdev/mpic_msi.c, branch v2.6.31.12 Linux kernel for Apalis and Colibri modules powerpc: Convert the MPIC MSI code to use msi_bitmap 2008-08-20T06:34:58+00:00 Michael Ellerman michael@ellerman.id.au 2008-08-05T23:10:03+00:00 25235f712b680d00756a73ee64289137989fc6fd 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> 
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>
[POWERPC] sysdev/mpic_msi.c should include sysdev/mpic.h 2008-05-14T12:31:50+00:00 Michael Ellerman michael@ellerman.id.au 2008-05-08T04:27:11+00:00 8fa29d22dcb2aec97f1a508cd3741c6e0b4a9434 Some of the routines defined in mpic_msi.c are declared mpic.h, so the former should include the latter. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> 
Some of the routines defined in mpic_msi.c are declared mpic.h,
so the former should include the latter.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
[POWERPC] Fix section mismatch in PCI code 2007-09-19T05:25:34+00:00 Stephen Rothwell sfr@canb.auug.org.au 2007-09-17T04:08:06+00:00 7b2c3c5b1d6dd77d7bb5a7d57ab7280e051c59bc Create a helper function (alloc_maybe_bootmem) that is marked __init_refok to limit the chances of mistakenly referring to other __init routines. WARNING: vmlinux.o(.text+0x2a9c4): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.update_dn_pci_info' and '.pci_dn_reconfig_notifier') WARNING: vmlinux.o(.text+0x36430): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.mpic_msi_init_allocator' and '.find_ht_magic_addr') WARNING: vmlinux.o(.text+0x5e804): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config') WARNING: vmlinux.o(.text+0x5e8e8): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config') WARNING: vmlinux.o(.text+0x5e968): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org> 
Create a helper function (alloc_maybe_bootmem) that is marked __init_refok
to limit the chances of mistakenly referring to other __init routines.

WARNING: vmlinux.o(.text+0x2a9c4): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.update_dn_pci_info' and '.pci_dn_reconfig_notifier')
WARNING: vmlinux.o(.text+0x36430): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.mpic_msi_init_allocator' and '.find_ht_magic_addr')
WARNING: vmlinux.o(.text+0x5e804): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config')
WARNING: vmlinux.o(.text+0x5e8e8): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config')
WARNING: vmlinux.o(.text+0x5e968): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
[POWERPC] Add an optional device_node pointer to the irq_host 2007-09-13T15:33:20+00:00 Michael Ellerman michael@ellerman.id.au 2007-08-28T08:47:54+00:00 52964f87c64e6c6ea671b5bf3030fb1494090a48 The majority of irq_host implementations (3 out of 4) are associated with a device_node, and need to stash it somewhere. Rather than having it somewhere different for each host, add an optional device_node pointer to the irq_host structure. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> 
The majority of irq_host implementations (3 out of 4) are associated
with a device_node, and need to stash it somewhere. Rather than having
it somewhere different for each host, add an optional device_node pointer
to the irq_host structure.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
[POWERPC] MPIC MSI allocator 2007-05-08T03:43:48+00:00 Michael Ellerman michael@ellerman.id.au 2007-05-08T02:58:36+00:00 a7de7c74227edda719b257eb15aecd73790ff894 To support MSI on MPIC we need a way to reserve and allocate hardware irq numbers, this patch implements an allocator for that purpose. New firmware platforms must define a "msi-available-ranges" property on their MPIC node for MSI to work. For U3/U4 we do a best-guess setup. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> 
To support MSI on MPIC we need a way to reserve and allocate hardware irq
numbers, this patch implements an allocator for that purpose.

New firmware platforms must define a "msi-available-ranges" property on their
MPIC node for MSI to work. For U3/U4 we do a best-guess setup.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>