linux/arch/tile/kernel, branch v3.9.9

tile: support new Tilera hypervisor

2013-05-19T18:38:28Z

commit c539914dcd9a68c63305e055b14115a6a19578a8 upstream. The Tilera hypervisor shipped in releases up through MDE 4.1 launches the client operating system (i.e. Linux) at privilege level 1 (PL1). Starting with MDE 4.2, as part of the work to enable KVM, the Tilera hypervisor launches Linux at PL2 instead. This commit makes the KERNEL_PL option default to 2 for tilegx, while still saying at 1 for tilepro, which doesn't have an updated hypervisor. It also explains how and when you might want to choose another value. In addition, we change a small buglet in the on-chip Ethernet driver, where we were failing to use the KERNEL_PL constant in an API call. To make the transition cleaner, this change also provides the updated hv_init() API for the new hypervisor that supports announcing Linux's compiled-in PL, so the hypervisor can generate a suitable error in the case of a mismatched hypervisor and Linux binary. Signed-off-by: Chris Metcalf Signed-off-by: Greg Kroah-Hartman

tile: expect new initramfs name from hypervisor file system

2013-03-29T19:11:49Z

The current Tilera boot infrastructure now provides the initramfs to Linux as a Tilera-hypervisor file named "initramfs", rather than "initramfs.cpio.gz", as before. (This makes it reasonable to use other compression techniques than gzip on the file without having to worry about the name causing confusion.) Adapt to use the new name, but also fall back to checking for the old name. Cc'ing to stable so that older kernels will remain compatible with newer Tilera boot infrastructure. Signed-off-by: Chris Metcalf Cc: stable@vger.kernel.org

tile: properly use COMPAT_SYSCALL_DEFINEx

2013-03-04T18:37:32Z

This was pointed out by Al Viro. Using the correct wrappers properly does sign extension as necessary on syscall arguments. Signed-off-by: Chris Metcalf

tile: work around bug in the generic sys_llseek

2013-03-04T16:19:09Z

sys_llseek should specify the high and low 32-bit seek values as "unsigned int" but instead it specifies "unsigned long". Since compat syscall arguments are always sign-extended on tile, this means that a seek value of 0xffffffff will be incorrectly interpreted as a value of -1ULL. To avoid the risk of breaking binary compatibility on architectures that already use sys_llseek this way, we follow the same path as MIPS and provide a wrapper override. Signed-off-by: Chris Metcalf Cc: stable@kernel.org [v3.6 onwards]

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-02-24T02:50:11Z

Pull signal handling cleanups from Al Viro: "This is the first pile; another one will come a bit later and will contain SYSCALL_DEFINE-related patches. - a bunch of signal-related syscalls (both native and compat) unified. - a bunch of compat syscalls switched to COMPAT_SYSCALL_DEFINE (fixing several potential problems with missing argument validation, while we are at it) - a lot of now-pointless wrappers killed - a couple of architectures (cris and hexagon) forgot to save altstack settings into sigframe, even though they used the (uninitialized) values in sigreturn; fixed. - microblaze fixes for delivery of multiple signals arriving at once - saner set of helpers for signal delivery introduced, several architectures switched to using those." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (143 commits) x86: convert to ksignal sparc: convert to ksignal arm: switch to struct ksignal * passing alpha: pass k_sigaction and siginfo_t using ksignal pointer burying unused conditionals make do_sigaltstack() static arm64: switch to generic old sigaction() (compat-only) arm64: switch to generic compat rt_sigaction() arm64: switch compat to generic old sigsuspend arm64: switch to generic compat rt_sigqueueinfo() arm64: switch to generic compat rt_sigpending() arm64: switch to generic compat rt_sigprocmask() arm64: switch to generic sigaltstack sparc: switch to generic old sigsuspend sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE sparc: kill sign-extending wrappers for native syscalls kill sparc32_open() sparc: switch to use of generic old sigaction sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE mips: switch to generic sys_fork() and sys_clone() ...

tile: tag some code with #ifdef CONFIG_COMPAT

2013-02-08T18:20:43Z

This allows us to disable COMPAT mode without a link error. Signed-off-by: Chris Metcalf

tile: export a handful of symbols appropriately

2013-02-08T18:20:36Z

This was shown up by running with "allmodconfig". I used EXPORT_SYMBOL() to match existing conventions in files that were already exporting symbols, or that were exported that way by other architectures, and otherwise EXPORT_SYMBOL_GPL(). Signed-off-by: Chris Metcalf

tile: avoid defining INT_MASK macro in

2013-02-04T17:53:15Z

Unfortunately, this name conflicts with a different use of the name in various places through the tree, so don't provide it for the kernel. We preserve it for userspace to avoid breaking any userspace code that relies on this definition. This fixes a number of compile errors for various drivers that are enabled by "allyesconfig". Signed-off-by: Chris Metcalf

tile: provide "screen_info" when enabling VT

2013-02-04T17:53:14Z

This avoids a link-time failure when building allyesconfig. Signed-off-by: Chris Metcalf

tile: switch to generic compat rt_sigaction()

2013-02-03T23:16:22Z

Signed-off-by: Al Viro