[PATCH v1 05/12] gna: initialize mmu
From: Maciej Kwapulinski <hidden>
Date: 2021-02-16 16:12:17
Also in:
lkml
Subsystem:
char and misc drivers, the rest · Maintainers:
Arnd Bergmann, Greg Kroah-Hartman, Linus Torvalds
From: Tomasz Jankowski <redacted> Setup mmu in the driver with a new memory component. Signed-off-by: Tomasz Jankowski <redacted> Tested-by: Savo Novakovic <redacted> Signed-off-by: Maciej Kwapulinski <redacted> --- drivers/misc/gna/gna_device.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/misc/gna/gna_device.c b/drivers/misc/gna/gna_device.c
index f962c7e1e5e9..d6a6d3cab570 100644
--- a/drivers/misc/gna/gna_device.c
+++ b/drivers/misc/gna/gna_device.c@@ -23,6 +23,16 @@ static int gna_dev_init(struct gna_private *gna_priv, struct pci_dev *pcidev, bld_reg = gna_reg_read(gna_priv->bar0.mem_addr, GNA_MMIO_IBUFFS); gna_priv->hw_info.in_buf_s = bld_reg & GENMASK(7, 0); + if (gna_mmu_alloc(gna_priv)) { + dev_err(&gna_priv->dev, "gna mmu allocation failed\n"); + return -EFAULT; + } + dev_dbg(&pcidev->dev, "maximum memory size %llu num pd %d\n", + gna_priv->info.max_hw_mem, gna_priv->info.num_pagetables); + dev_dbg(&pcidev->dev, "desc rsvd size %d mmu vamax size %d\n", + gna_priv->info.desc_info.rsvd_size, + gna_priv->info.desc_info.mmu_info.vamax_size); + mutex_init(&gna_priv->mmu_lock); idr_init(&gna_priv->memory_idr);
@@ -35,6 +45,7 @@ static int gna_dev_init(struct gna_private *gna_priv, struct pci_dev *pcidev, static void gna_dev_deinit(struct gna_private *gna_priv) { idr_destroy(&gna_priv->memory_idr); + gna_mmu_free(gna_priv); pci_set_drvdata(gna_priv->pdev, NULL); }
--
2.28.0