diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-06 17:58:22 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-06 17:58:22 -0800 |
commit | e4e88f31bcb5f05f24b9ae518d4ecb44e1a7774d (patch) | |
tree | 9eef6998f5bbd1a2c999011d9e0151f00c6e7297 /arch/powerpc/mm/icswx.h | |
parent | 9753dfe19a85e7e45a34a56f4cb2048bb4f50e27 (diff) | |
parent | ef88e3911c0e0301e73fa3b3b2567aabdbe17cc4 (diff) |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits)
powerpc: fix compile error with 85xx/p1010rdb.c
powerpc: fix compile error with 85xx/p1023_rds.c
powerpc/fsl: add MSI support for the Freescale hypervisor
arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree
powerpc/fsl: Add support for Integrated Flash Controller
powerpc/fsl: update compatiable on fsl 16550 uart nodes
powerpc/85xx: fix PCI and localbus properties in p1022ds.dts
powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig
powerpc/fsl: Update defconfigs to enable some standard FSL HW features
powerpc: Add TBI PHY node to first MDIO bus
sbc834x: put full compat string in board match check
powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address
powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit
offb: Fix setting of the pseudo-palette for >8bpp
offb: Add palette hack for qemu "standard vga" framebuffer
offb: Fix bug in calculating requested vram size
powerpc/boot: Change the WARN to INFO for boot wrapper overlap message
powerpc/44x: Fix build error on currituck platform
powerpc/boot: Change the load address for the wrapper to fit the kernel
powerpc/44x: Enable CRASH_DUMP for 440x
...
Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to
the additional sparse-checking code for cputime_t.
Diffstat (limited to 'arch/powerpc/mm/icswx.h')
-rw-r--r-- | arch/powerpc/mm/icswx.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/powerpc/mm/icswx.h b/arch/powerpc/mm/icswx.h new file mode 100644 index 00000000000..42176bd0884 --- /dev/null +++ b/arch/powerpc/mm/icswx.h @@ -0,0 +1,62 @@ +#ifndef _ARCH_POWERPC_MM_ICSWX_H_ +#define _ARCH_POWERPC_MM_ICSWX_H_ + +/* + * ICSWX and ACOP Management + * + * Copyright (C) 2011 Anton Blanchard, IBM Corp. <anton@samba.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +#include <asm/mmu_context.h> + +/* also used to denote that PIDs are not used */ +#define COP_PID_NONE 0 + +static inline void sync_cop(void *arg) +{ + struct mm_struct *mm = arg; + + if (mm == current->active_mm) + switch_cop(current->active_mm); +} + +#ifdef CONFIG_PPC_ICSWX_PID +extern int get_cop_pid(struct mm_struct *mm); +extern int disable_cop_pid(struct mm_struct *mm); +extern void free_cop_pid(int free_pid); +#else +#define get_cop_pid(m) (COP_PID_NONE) +#define disable_cop_pid(m) (COP_PID_NONE) +#define free_cop_pid(p) +#endif + +/* + * These are implementation bits for architected registers. If this + * ever becomes architecture the should be moved to reg.h et. al. + */ +/* UCT is the same bit for Server and Embedded */ +#define ICSWX_DSI_UCT 0x00004000 /* Unavailable Coprocessor Type */ + +#ifdef CONFIG_PPC_BOOK3E +/* Embedded implementation gives us no hints as to what the CT is */ +#define ICSWX_GET_CT_HINT(x) (-1) +#else +/* Server implementation contains the CT value in the DSISR */ +#define ICSWX_DSISR_CTMASK 0x00003f00 +#define ICSWX_GET_CT_HINT(x) (((x) & ICSWX_DSISR_CTMASK) >> 8) +#endif + +#define ICSWX_RC_STARTED 0x8 /* The request has been started */ +#define ICSWX_RC_NOT_IDLE 0x4 /* No coprocessor found idle */ +#define ICSWX_RC_NOT_FOUND 0x2 /* No coprocessor found */ +#define ICSWX_RC_UNDEFINED 0x1 /* Reserved */ + +extern int acop_handle_fault(struct pt_regs *regs, unsigned long address, + unsigned long error_code); +#endif /* !_ARCH_POWERPC_MM_ICSWX_H_ */ |