linux-kernel - [PATCH v5 3/4] uio_pruss: UIO_MEM_DMA

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Date: Thu,  1 Feb 2024 15:33:59 -0800
From: Chris Leech <cleech@...hat.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Nilesh Javali <njavali@...vell.com>
Cc: Christoph Hellwig <hch@....de>,
	John Meneghini <jmeneghi@...hat.com>,
	Lee Duncan <lduncan@...e.com>,
	Mike Christie <michael.christie@...cle.com>,
	Hannes Reinecke <hare@...nel.org>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org,
	GR-QLogic-Storage-Upstream@...vell.com
Subject: [PATCH v5 3/4] uio_pruss: UIO_MEM_DMA_COHERENT conversion

Conversion of this driver to use UIO_MEM_DMA_COHERENT for
dma_alloc_coherent memory instead of UIO_MEM_PHYS.

Signed-off-by: Chris Leech <cleech@...hat.com>
---
 drivers/uio/uio_pruss.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index 77e2dc4048855..72b33f7d4c40f 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -191,9 +191,11 @@ static int pruss_probe(struct platform_device *pdev)
 		p->mem[1].size = sram_pool_sz;
 		p->mem[1].memtype = UIO_MEM_PHYS;
 
-		p->mem[2].addr = gdev->ddr_paddr;
+		p->mem[2].addr = (phys_addr_t) gdev->ddr_vaddr;
+		p->mem[2].dma_addr = gdev->ddr_paddr;
 		p->mem[2].size = extram_pool_sz;
-		p->mem[2].memtype = UIO_MEM_PHYS;
+		p->mem[2].memtype = UIO_MEM_DMA_COHERENT;
+		p->mem[2].dma_device = dev;
 
 		p->name = devm_kasprintf(dev, GFP_KERNEL, "pruss_evt%d", cnt);
 		p->version = DRV_VERSION;
-- 
2.43.0