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    Subject[PATCH v2 07/17] cxl: Add new header for call backs and structs
    Date
    From: Ian Munsie <imunsie@au1.ibm.com>

    This new header add defines for callbacks and structs needed by the rest of the
    kernel to hook into the cxl infrastructure.

    Empty functions are provided when CONFIG CXL_BASE is not enabled.

    Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
    Signed-off-by: Michael Neuling <mikey@neuling.org>
    ---
    include/misc/cxl.h | 34 ++++++++++++++++++++++++++++++++++
    1 file changed, 34 insertions(+)
    create mode 100644 include/misc/cxl.h

    diff --git a/include/misc/cxl.h b/include/misc/cxl.h
    new file mode 100644
    index 0000000..bde46a3
    --- /dev/null
    +++ b/include/misc/cxl.h
    @@ -0,0 +1,34 @@
    +/*
    + * Copyright 2014 IBM Corp.
    + *
    + * 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.
    + */
    +
    +#ifndef _MISC_ASM_CXL_H
    +#define _MISC_ASM_CXL_H
    +
    +#define CXL_IRQ_RANGES 4
    +
    +struct cxl_irq_ranges {
    + irq_hw_number_t offset[CXL_IRQ_RANGES];
    + irq_hw_number_t range[CXL_IRQ_RANGES];
    +};
    +
    +#ifdef CONFIG_CXL_BASE
    +
    +void cxl_slbia(struct mm_struct *mm);
    +void cxl_ctx_get(void);
    +void cxl_ctx_put(void);
    +bool cxl_ctx_in_use(void);
    +
    +#else /* CONFIG_CXL_BASE */
    +
    +#define cxl_slbia(...) do { } while (0)
    +#define cxl_ctx_in_use(...) false
    +
    +#endif /* CONFIG_CXL_BASE */
    +
    +#endif
    --
    1.9.1


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