Imapct: add a new struct member to 'struct protection_domain'
When using protection domains for dma_ops and KVM its better to know for
which subsystem it was allocated. Add a flags member to struct
protection domain for that purpose.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Impact: save unneeded logic to add and remove domains to the list
The removal of a protection domain from the iommu_pd_list is not
necessary. Another benefit is that we save complexity because we don't
have to readd it later when the device no longer uses the domain.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Impact: split one function into three
The separate functions are required synchronize commands across all
hardware IOMMUs in the system.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Impact: change code to free pagetables from protection domains
The dma_ops_free_pagetable function can only free pagetables from
dma_ops domains. Change that to free pagetables of pure protection
domains.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Impact: function rename
The iommu_map function maps only one page. Make this clear in the
function name.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
These two IOMMUs can implement the current version of this API. So
select the API if one or both of these IOMMU drivers is selected.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Impact: file renamed
The code in the vtd.c file can be reused for other IOMMUs as well. So
rename it to make it clear that it handle more than VT-d.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Fix following warning:
traps.h:23: extern's make no sense in userspace
Add an ifdef __KERNEL__ block that cover the
extern definition and a few related things that neither
is for userspace.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix following warnings in byteorder.h:
byteorder.h:4: include of <linux/types.h> is preferred over <asm/types.h>
byteorder.h:9: leaks CONFIG_SPARC32 to userspace where it is not valid
byteorder.h:13: leaks CONFIG_SPARC64 to userspace where it is not valid
byteorder.h:14: found __[us]{8,16,32,64} type without #include <linux/types.h>
byteorder.h:47: leaks CONFIG_SPARC64 to userspace where it is not valid
- changed to use include <linux/types.h> as suggested
- use preprocessor defined symbols to distingush between 32 and 64 bit
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix following warnings in jsflash.h:
jsflash.h:11: include of <linux/types.h> is preferred over <asm/types.h>
jsflash.h:24: found __[us]{8,16,32,64} type without #include <linux/types.h>
Fixed by changing the include to <linux/types.h>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
After the preparational steps the unification was simple.
The linux_prom_pci_registers definition did not look like
it could be unified at first look since the structure is assigned
using prop_getproperty() / of_get_property() so the structure
is assumed to come direct form the prom.
The LINUX_OPPROM_MAGIC was kept even if it is not used by the kernel
on the assumption that userspace may require it.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Align the sparc and sparc64 versions so differences are minimal.
A few data types are changed to better reflect there actual usage.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Looks like leftovers from the removal of the special ebus layer.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Trivial unification where the sparc64 specific
parts are protected using a signle ifdef/endif pair.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The two ptrace.h implementations are very alike but
the small differences required two set of ifdef/else/endif pairs.
The definition of reg_window32 could have been shared but
that would have required several updates in sparc32 code as
all printk formatting for example assume it is longs.
sparc_stackf looked like anohter candidate to share if the 32
bit was renamed to sparc_stackf32.
But it contains two pointers in the sparc32 version which would
have been 64 bit in the sparc64 version so it was non-trivial.
Using a set of accessor macros could do the trick if pursued later.
The sparc64 specific definitions are not protected by
ifdef - as it should not be required to do so.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
With the renamed types in place the unification was straightforward.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Renaming a few types to contain a 32 suffix makes the
type names compatible with sparc64 and thus makes sharing
between the two a lot easier.
Note: None of these definitions are expected part of the
stable ABI towards userspace.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
They were almost identical and with the preapration
patch nothing was needed to be added.
The unified version contains a few sparc64 only definitions
but they are kept as is and not protected by ifdef/endif.
The unified version exports a bit more to userspace then the
32 bit version did.
This is not considered fatal.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
o add a sparc32 only definition
o fix a few style issues (white space errors etc).
o include compiler.h (for __user)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
To my suprise struct stat64 was not equal on sparc 32 and sparc64,
so there was really nothing to share here.
Unify the files by adding their respective content to stat.h.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
sparc32 does not define __ARCH_WANT_OLD_STAT so
we do not use this structure neither do we support it.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The posix types differed so much in their definition
that they are kept in separate blocks.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to define a config symbol if
it is never set to any value. Undefined symbols equal
to 'n'.
GENERIC_GPIO looks like it is similar but
it is set using select in some other file so
it must be kept.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Impact: cleanup, reduce kernel size a bit
The current kernel build warns:
WARNING: vmlinux.o(.text+0x11458): Section mismatch in reference from the function swiotlb_alloc_boot() to the function .init.text:__alloc_bootmem_low()
The function swiotlb_alloc_boot() references
the function __init __alloc_bootmem_low().
This is often because swiotlb_alloc_boot lacks a __init
annotation or the annotation of __alloc_bootmem_low is wrong.
WARNING: vmlinux.o(.text+0x1011f2): Section mismatch in reference from the function swiotlb_late_init_with_default_size() to the function .init.text:__alloc_bootmem_low()
The function swiotlb_late_init_with_default_size() references
the function __init __alloc_bootmem_low().
This is often because swiotlb_late_init_with_default_size lacks a __init
annotation or the annotation of __alloc_bootmem_low is wrong.
and indeed the functions calling __alloc_bootmem_low() can be marked
__init as well.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
We had a recursive dependency between MMU_MOTOROLA and MMU_SUN3
Fix it by dropping the unused dependencies on MMU_MOTOROLA.
MMU_MOTOROLA is set to y only using select so any dependencies
are anyway ignored.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Impact: cleanup, fix style problems, more readable
Fixes style problems:
WARNING: Use #include <linux/smp.h> instead of <asm/smp.h>
WARNING: Use #include <linux/acpi.h> instead of <asm/acpi.h>
WARNING: suspect code indent for conditional statements (8, 17)
WARNING: space prohibited between function name and open parenthesis '('
total: 0 errors, 5 warnings
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Joerg Roedel