From ad42de859ff14c079e966e61cbcba85265b982e1 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Fri, 24 Jun 2016 08:47:07 +0200 Subject: cxl: Add set and get private data to context struct This provides AFU drivers a means to associate private data with a cxl context. This is particularly intended for make the new callbacks for driver specific events easier for AFU drivers to use, as they can easily get back to any private data structures they may use. Signed-off-by: Michael Neuling Signed-off-by: Ian Munsie Signed-off-by: Philippe Bergheaud Reviewed-by: Andrew Donnellan Signed-off-by: Michael Ellerman --- drivers/misc/cxl/api.c | 21 +++++++++++++++++++++ drivers/misc/cxl/cxl.h | 3 +++ 2 files changed, 24 insertions(+) (limited to 'drivers/misc') diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index f11dc0e5fdd6..7707055d33ab 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -94,6 +94,27 @@ static irq_hw_number_t cxl_find_afu_irq(struct cxl_context *ctx, int num) return 0; } + +int cxl_set_priv(struct cxl_context *ctx, void *priv) +{ + if (!ctx) + return -EINVAL; + + ctx->priv = priv; + + return 0; +} +EXPORT_SYMBOL_GPL(cxl_set_priv); + +void *cxl_get_priv(struct cxl_context *ctx) +{ + if (!ctx) + return ERR_PTR(-EINVAL); + + return ctx->priv; +} +EXPORT_SYMBOL_GPL(cxl_get_priv); + int cxl_allocate_afu_irqs(struct cxl_context *ctx, int num) { int res; diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 422ee53868a8..27578fceda8a 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -484,6 +484,9 @@ struct cxl_context { /* Only used in PR mode */ u64 process_token; + /* driver private data */ + void *priv; + unsigned long *irq_bitmap; /* Accessed from IRQ context */ struct cxl_irq_ranges irqs; struct list_head irq_names; -- cgit v1.3-18-gd494