From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 959E31A0225 for ; Tue, 8 Mar 2016 06:00:43 +1100 (AEDT) Received: from e23smtp05.au.ibm.com (e23smtp05.au.ibm.com [202.81.31.147]) (using TLSv1.2 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4B208140B9A for ; Tue, 8 Mar 2016 06:00:42 +1100 (AEDT) Received: from localhost by e23smtp05.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 8 Mar 2016 05:00:41 +1000 Received: from d23relay10.au.ibm.com (d23relay10.au.ibm.com [9.190.26.77]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 190033578056 for ; Tue, 8 Mar 2016 06:00:39 +1100 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay10.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u27J0V7B8454422 for ; Tue, 8 Mar 2016 06:00:39 +1100 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u27J06Ta030730 for ; Tue, 8 Mar 2016 06:00:06 +1100 From: "Ian Munsie" To: Michael Ellerman , linux-kernel , Matt Ochs , Manoj Kumar Cc: Michael Neuling , linuxppc-dev , Ian Munsie Subject: [PATCH v2 2/2] cxl: add set/get private data to context struct Date: Tue, 8 Mar 2016 05:59:24 +1100 Message-Id: <1457377164-22234-2-git-send-email-imunsie@au.ibm.com> In-Reply-To: <1457377164-22234-1-git-send-email-imunsie@au.ibm.com> References: <1457377164-22234-1-git-send-email-imunsie@au.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Michael Neuling 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 --- No changes since v1 drivers/misc/cxl/api.c | 21 +++++++++++++++++++++ drivers/misc/cxl/cxl.h | 3 +++ include/misc/cxl.h | 7 +++++++ 3 files changed, 31 insertions(+) diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index eebc9c3..93b270c 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -91,6 +91,27 @@ int cxl_release_context(struct cxl_context *ctx) } EXPORT_SYMBOL_GPL(cxl_release_context); + +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) { if (num == 0) diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 64e8e0a..71f66e7 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -454,6 +454,9 @@ 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; diff --git a/include/misc/cxl.h b/include/misc/cxl.h index f198a42..f99b383 100644 --- a/include/misc/cxl.h +++ b/include/misc/cxl.h @@ -89,6 +89,13 @@ struct cxl_context *cxl_dev_context_init(struct pci_dev *dev); int cxl_release_context(struct cxl_context *ctx); /* + * Set and get private data associated with a context. Allows drivers to have a + * back pointer to some useful structure. + */ +int cxl_set_priv(struct cxl_context *ctx, void *priv); +void *cxl_get_priv(struct cxl_context *ctx); + +/* * Allocate AFU interrupts for this context. num=0 will allocate the default * for this AFU as given in the AFU descriptor. This number doesn't include the * interrupt 0 (CAIA defines AFU IRQ 0 for page faults). Each interrupt to be -- 2.1.4