linux.git/arch/arm64/include/asm/assembler.h, branch v3.14 Linux kernel source tree arm64: asm: add CPU_LE & CPU_BE assembler helpers 2013-10-25T14:59:38+00:00 Matthew Leach matthew.leach@arm.com 2013-10-11T13:52:15+00:00 e68bedaa03c950ae8045e7899e7a6b2a97d1bf41 Add CPU_LE and CPU_BE to select assembler code in little and big endian configurations respectively. Signed-off-by: Matthew Leach <matthew.leach@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
Add CPU_LE and CPU_BE to select assembler code in little and big
endian configurations respectively.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: compat: correct register concatenation for syscall wrappers 2013-10-25T14:59:36+00:00 Matthew Leach matthew.leach@arm.com 2013-10-11T13:52:13+00:00 55b89540b0d8d031f90e3d711ec0df3f797ecc61 The arm64 port contains wrappers for arm32 syscalls that pass 64-bit values. These wrappers concatenate the two registers to hold a 64-bit value in a single X register. On BE, however, the lower and higher words are swapped. Create a new assembler macro, regs_to_64, that when on BE systems swaps the registers in the orr instruction. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Matthew Leach <matthew.leach@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
The arm64 port contains wrappers for arm32 syscalls that pass 64-bit
values. These wrappers concatenate the two registers to hold a 64-bit
value in a single X register. On BE, however, the lower and higher
words are swapped.

Create a new assembler macro, regs_to_64, that when on BE systems
swaps the registers in the orr instruction.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: debug: fix mdscr.ss check when enabling debug exceptions 2013-05-17T17:24:19+00:00 Will Deacon will.deacon@arm.com 2013-05-17T16:41:22+00:00 3126976be64bfb4c87297cb022ca815212079aec When we take an exception at EL1, we only want to enable debug exceptions if we're not currently stepping, otherwise we can easily get stuck in a loop stepping into interrupt handlers. Unfortunately, the current code tests the wrong bit in the mdscr, so fix that. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
When we take an exception at EL1, we only want to enable debug
exceptions if we're not currently stepping, otherwise we can easily get
stuck in a loop stepping into interrupt handlers.

Unfortunately, the current code tests the wrong bit in the mdscr, so fix
that.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: move vector entry macro to assembler.h 2012-12-05T11:26:47+00:00 Marc Zyngier marc.zyngier@arm.com 2012-10-19T16:37:35+00:00 dc637f1fdaa6f335271a0341fef3914b80ab929c This macro is also useful to other bits defining vectors (hypervisor stub, KVM...). Move it to a common location. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
This macro is also useful to other bits defining vectors (hypervisor
stub, KVM...).

Move it to a common location.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arm64: Assembly macros and definitions 2012-09-17T09:24:44+00:00 Catalin Marinas catalin.marinas@arm.com 2012-03-05T11:49:26+00:00 0be7320a635c2e434e8b67e0e9474a85ceb421c4 This patch introduces several assembly macros and definitions used in the .S files across arch/arm64/ like IRQ disabling/enabling, together with asm-offsets.c. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> 
This patch introduces several assembly macros and definitions used in
the .S files across arch/arm64/ like IRQ disabling/enabling, together
with asm-offsets.c.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>