[PATCH v2 07/17] cxl: Add new header for call backs and structs
From: Michael Neuling <hidden>
Date: 2014-09-30 10:38:52
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Ian Munsie <redacted> 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 <redacted> Signed-off-by: Michael Neuling <redacted> --- 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