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 592941A02EE for ; Tue, 8 Mar 2016 12:49:58 +1100 (AEDT) Received: from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148]) (using TLSv1.2 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 2BBCE140307 for ; Tue, 8 Mar 2016 12:49:58 +1100 (AEDT) Received: from localhost by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 8 Mar 2016 11:49:57 +1000 Received: from d23relay08.au.ibm.com (d23relay08.au.ibm.com [9.185.71.33]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 281DC3578052 for ; Tue, 8 Mar 2016 12:49:55 +1100 (EST) Received: from d23av02.au.ibm.com (d23av02.au.ibm.com [9.190.235.138]) by d23relay08.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u281nlEE590100 for ; Tue, 8 Mar 2016 12:49:55 +1100 Received: from d23av02.au.ibm.com (localhost [127.0.0.1]) by d23av02.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u281nMSM016127 for ; Tue, 8 Mar 2016 12:49:22 +1100 From: "Ian Munsie" To: Michael Ellerman , linux-kernel , Matt Ochs , Manoj Kumar Cc: Michael Neuling , linuxppc-dev , Ian Munsie Subject: [PATCH v3 2/2] cxl: add set/get private data to context struct Date: Tue, 8 Mar 2016 12:48:35 +1100 Message-Id: <1457401715-26435-2-git-send-email-imunsie@au.ibm.com> In-Reply-To: <1457401715-26435-1-git-send-email-imunsie@au.ibm.com> References: <1457401715-26435-1-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 Reviewed-by: Matthew R. Ochs --- No changes since v1, added Matt Ochs reviewed-by tag. 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 01d66a3..76c08cb 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