gpu/host1x/dev.c

3  * Tegra host1x driver
23 #include <trace/events/host1x.h>
45 void host1x_common_writel(struct host1x *host1x, u32 v, u32 r)
47 	writel(v, host1x->common_regs + r);
50 void host1x_hypervisor_writel(struct host1x *host1x, u32 v, u32 r)
52 	writel(v, host1x->hv_regs + r);
55 u32 host1x_hypervisor_readl(struct host1x *host1x, u32 r)
57 	return readl(host1x->hv_regs + r);
60 void host1x_sync_writel(struct host1x *host1x, u32 v, u32 r)
62 	void __iomem *sync_regs = host1x->regs + host1x->info->sync_offset;
67 u32 host1x_sync_readl(struct host1x *host1x, u32 r)
69 	void __iomem *sync_regs = host1x->regs + host1x->info->sync_offset;
264 	{ .compatible = "nvidia,tegra234-host1x", .data = &host1x08_info, },
265 	{ .compatible = "nvidia,tegra194-host1x", .data = &host1x07_info, },
266 	{ .compatible = "nvidia,tegra186-host1x", .data = &host1x06_info, },
267 	{ .compatible = "nvidia,tegra210-host1x", .data = &host1x05_info, },
268 	{ .compatible = "nvidia,tegra124-host1x", .data = &host1x04_info, },
269 	{ .compatible = "nvidia,tegra114-host1x", .data = &host1x02_info, },
270 	{ .compatible = "nvidia,tegra30-host1x", .data = &host1x01_info, },
271 	{ .compatible = "nvidia,tegra20-host1x", .data = &host1x01_info, },
276 static void host1x_setup_virtualization_tables(struct host1x *host)
307 static bool host1x_wants_iommu(struct host1x *host1x)
315 	 * and if the host1x firewall is enabled, there's no need to enable
322 	 * SoCs before Tegra186 (i.e. Tegra124 and Tegra210), the host1x can
330 	 * buffers will be mapped into a 32-bit IOVA space that host1x can
332 	 * within the limitations of the host1x on these SoCs.
336 	 * the host1x firewall is disabled.
338 	if (host1x->info->dma_mask <= DMA_BIT_MASK(32)) {
346 static struct iommu_domain *host1x_iommu_attach(struct host1x *host)
364 	 * host1x firewall is already enabled and we don't support addressing
367 	 * Similarly, if host1x is already attached to an IOMMU (via the DMA
422 static int host1x_iommu_init(struct host1x *host)
455 static void host1x_iommu_exit(struct host1x *host)
471 static int host1x_get_resets(struct host1x *host)
476 	host->resets[1].id = "host1x";
491 	struct host1x *host;
550 	/* set common host1x device data */
658 	struct host1x *host = platform_get_drvdata(pdev);
677 	struct host1x *host = dev_get_drvdata(dev);
709 	struct host1x *host = dev_get_drvdata(dev);
752 		.name = "tegra-host1x",
789  * host1x_get_dma_mask() - query the supported DMA mask for host1x
790  * @host1x: host1x instance
792  * Note that this returns the supported DMA mask for host1x, which can be
795 u64 host1x_get_dma_mask(struct host1x *host1x)
797 	return host1x->info->dma_mask;