Re: [PATCH v2 07/17] cxl: Add new header for call backs and structs
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2014-10-01 12:00:13
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On Tue, 2014-30-09 at 10:34:56 UTC, Michael Neuling wrote:
From: Ian Munsie <redacted> This new header add defines for callbacks and structs needed by the rest of the
adds
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 ++++++++++++++++++++++++++++++++++
include/misc is kind of weird. I guess it's a misc device. Any reason not to have it in arch/powerpc/include ?
quoted hunk ↗ jump to hunk
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
No ASM.
+#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(...) falseAny reason these shouldn't be static inlines? cheers