From: Kishon Vijay Abraham I <kishon@ti.com>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Arnd Bergmann <arnd@arndb.de>, Jon Mason <jdmason@kudzu.us>,
Dave Jiang <dave.jiang@intel.com>,
Allen Hubbe <allenbh@gmail.com>, Tom Joseph <tjoseph@cadence.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Rob Herring <robh+dt@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jonathan Corbet <corbet@lwn.net>, <linux-pci@vger.kernel.org>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-ntb@googlegroups.com>,
Kishon Vijay Abraham I <kishon@ti.com>
Subject: [PATCH 19/19] NTB: ntb_perf/ntb_tool: Use PCI device for dma_alloc_coherent()
Date: Thu, 14 May 2020 20:29:27 +0530 [thread overview]
Message-ID: <20200514145927.17555-20-kishon@ti.com> (raw)
In-Reply-To: <20200514145927.17555-1-kishon@ti.com>
NTB device is not a real device and the piece of hardware actually
doing the DMA is the PCI device itself. Fix ntb_perf.c and ntb_tool.c
to use PCI device for dma_alloc_coherent() instead of NTB device.
ntb_transport.c already uses PCI device for dma_alloc_coherent().
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/ntb/test/ntb_perf.c | 3 ++-
drivers/ntb/test/ntb_tool.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 972f6d984f6d..7f830a3e5b14 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -566,6 +566,7 @@ static int perf_setup_inbuf(struct perf_peer *peer)
{
resource_size_t xlat_align, size_align, size_max;
struct perf_ctx *perf = peer->perf;
+ struct pci_dev *pdev = perf->ntb->pdev;
int ret;
/* Get inbound MW parameters */
@@ -586,7 +587,7 @@ static int perf_setup_inbuf(struct perf_peer *peer)
perf_free_inbuf(peer);
- peer->inbuf = dma_alloc_coherent(&perf->ntb->dev, peer->inbuf_size,
+ peer->inbuf = dma_alloc_coherent(&pdev->dev, peer->inbuf_size,
&peer->inbuf_xlat, GFP_KERNEL);
if (!peer->inbuf) {
dev_err(&perf->ntb->dev, "Failed to alloc inbuf of %pa\n",
diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
index 4b4f9e2a2c43..5c9f034122b7 100644
--- a/drivers/ntb/test/ntb_tool.c
+++ b/drivers/ntb/test/ntb_tool.c
@@ -576,6 +576,7 @@ static int tool_setup_mw(struct tool_ctx *tc, int pidx, int widx,
{
resource_size_t size, addr_align, size_align;
struct tool_mw *inmw = &tc->peers[pidx].inmws[widx];
+ struct pci_dev *pdev = tc->ntb->pdev;
char buf[TOOL_BUF_LEN];
int ret;
@@ -590,7 +591,7 @@ static int tool_setup_mw(struct tool_ctx *tc, int pidx, int widx,
inmw->size = min_t(resource_size_t, req_size, size);
inmw->size = round_up(inmw->size, addr_align);
inmw->size = round_up(inmw->size, size_align);
- inmw->mm_base = dma_alloc_coherent(&tc->ntb->dev, inmw->size,
+ inmw->mm_base = dma_alloc_coherent(&pdev->dev, inmw->size,
&inmw->dma_base, GFP_KERNEL);
if (!inmw->mm_base)
return -ENOMEM;
--
2.17.1
next prev parent reply other threads:[~2020-05-14 15:02 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-14 14:59 [PATCH 00/19] Implement NTB Controller using multiple PCI EP Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 01/19] dt-bindings: PCI: Endpoint: Add DT bindings for PCI EPF NTB Device Kishon Vijay Abraham I
2020-05-15 2:38 ` Rob Herring
2020-05-22 5:53 ` Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 02/19] Documentation: PCI: Add specification for the *PCI NTB* function device Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 03/19] PCI: endpoint: Add API to get reference to EPC from device-tree Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 04/19] PCI: endpoint: Add API to create EPF device from device tree Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 05/19] PCI: endpoint: Add "pci-epf-bus" driver Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 06/19] PCI: endpoint: Make *_get_first_free_bar() take into account 64 bit BAR Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 07/19] PCI: endpoint: Add helper API to get the 'next' unreserved BAR Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 08/19] PCI: endpoint: Make *_free_bar() to return error codes on failure Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 09/19] PCI: endpoint: Remove unused pci_epf_match_device() Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 10/19] PCI: endpoint: Make pci_epf_driver ops optional Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 11/19] PCI: endpoint: Add helper API to populate header with values from DT Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 12/19] PCI: endpoint: Add support to associate secondary EPC with EPF Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 13/19] PCI: endpoint: Add pci_epc_ops to map MSI irq Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 14/19] PCI: cadence: Implement ->msi_map_irq() ops Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 15/19] PCI: endpoint: Add EP function driver to provide NTB functionality Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 16/19] PCI: Add TI J721E device to pci ids Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 17/19] NTB: Add support for EPF PCI-Express Non-Transparent Bridge Kishon Vijay Abraham I
2020-05-14 14:59 ` [PATCH 18/19] NTB: tool: Enable the NTB/PCIe link on the local or remote side of bridge Kishon Vijay Abraham I
2020-05-14 14:59 ` Kishon Vijay Abraham I [this message]
2020-05-22 16:11 ` [PATCH 00/19] Implement NTB Controller using multiple PCI EP Rob Herring
2020-05-23 1:47 ` Kishon Vijay Abraham I
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