diff options
Diffstat (limited to 'drivers/gpu/host1x/dev.c')
| -rw-r--r-- | drivers/gpu/host1x/dev.c | 429 |
1 files changed, 344 insertions, 85 deletions
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index fbb6447b8659..3f475f0e6545 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -6,20 +6,30 @@ */ #include <linux/clk.h> +#include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/io.h> #include <linux/list.h> #include <linux/module.h> -#include <linux/of_device.h> #include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> +#include <soc/tegra/common.h> + #define CREATE_TRACE_POINTS #include <trace/events/host1x.h> #undef CREATE_TRACE_POINTS +#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) +#include <asm/dma-iommu.h> +#endif + #include "bus.h" #include "channel.h" +#include "context.h" #include "debug.h" #include "dev.h" #include "intr.h" @@ -30,6 +40,12 @@ #include "hw/host1x05.h" #include "hw/host1x06.h" #include "hw/host1x07.h" +#include "hw/host1x08.h" + +void host1x_common_writel(struct host1x *host1x, u32 v, u32 r) +{ + writel(v, host1x->common_regs + r); +} void host1x_hypervisor_writel(struct host1x *host1x, u32 v, u32 r) { @@ -55,6 +71,15 @@ u32 host1x_sync_readl(struct host1x *host1x, u32 r) return readl(sync_regs + r); } +#ifdef CONFIG_64BIT +u64 host1x_sync_readq(struct host1x *host1x, u32 r) +{ + void __iomem *sync_regs = host1x->regs + host1x->info->sync_offset; + + return readq(sync_regs + r); +} +#endif + void host1x_ch_writel(struct host1x_channel *ch, u32 v, u32 r) { writel(v, ch->regs + r); @@ -126,12 +151,29 @@ static const struct host1x_info host1x05_info = { }; static const struct host1x_sid_entry tegra186_sid_table[] = { - { - /* VIC */ - .base = 0x1af0, - .offset = 0x30, - .limit = 0x34 - }, + { /* SE1 */ .base = 0x1ac8, .offset = 0x90, .limit = 0x90 }, + { /* SE2 */ .base = 0x1ad0, .offset = 0x90, .limit = 0x90 }, + { /* SE3 */ .base = 0x1ad8, .offset = 0x90, .limit = 0x90 }, + { /* SE4 */ .base = 0x1ae0, .offset = 0x90, .limit = 0x90 }, + { /* ISP */ .base = 0x1ae8, .offset = 0x50, .limit = 0x50 }, + { /* VIC */ .base = 0x1af0, .offset = 0x30, .limit = 0x34 }, + { /* NVENC */ .base = 0x1af8, .offset = 0x30, .limit = 0x34 }, + { /* NVDEC */ .base = 0x1b00, .offset = 0x30, .limit = 0x34 }, + { /* NVJPG */ .base = 0x1b08, .offset = 0x30, .limit = 0x34 }, + { /* TSEC */ .base = 0x1b10, .offset = 0x30, .limit = 0x34 }, + { /* TSECB */ .base = 0x1b18, .offset = 0x30, .limit = 0x34 }, + { /* VI 0 */ .base = 0x1b80, .offset = 0x10000, .limit = 0x10000 }, + { /* VI 1 */ .base = 0x1b88, .offset = 0x20000, .limit = 0x20000 }, + { /* VI 2 */ .base = 0x1b90, .offset = 0x30000, .limit = 0x30000 }, + { /* VI 3 */ .base = 0x1b98, .offset = 0x40000, .limit = 0x40000 }, + { /* VI 4 */ .base = 0x1ba0, .offset = 0x50000, .limit = 0x50000 }, + { /* VI 5 */ .base = 0x1ba8, .offset = 0x60000, .limit = 0x60000 }, + { /* VI 6 */ .base = 0x1bb0, .offset = 0x70000, .limit = 0x70000 }, + { /* VI 7 */ .base = 0x1bb8, .offset = 0x80000, .limit = 0x80000 }, + { /* VI 8 */ .base = 0x1bc0, .offset = 0x90000, .limit = 0x90000 }, + { /* VI 9 */ .base = 0x1bc8, .offset = 0xa0000, .limit = 0xa0000 }, + { /* VI 10 */ .base = 0x1bd0, .offset = 0xb0000, .limit = 0xb0000 }, + { /* VI 11 */ .base = 0x1bd8, .offset = 0xc0000, .limit = 0xc0000 }, }; static const struct host1x_info host1x06_info = { @@ -147,15 +189,30 @@ static const struct host1x_info host1x06_info = { .num_sid_entries = ARRAY_SIZE(tegra186_sid_table), .sid_table = tegra186_sid_table, .reserve_vblank_syncpts = false, + .skip_reset_assert = true, }; static const struct host1x_sid_entry tegra194_sid_table[] = { - { - /* VIC */ - .base = 0x1af0, - .offset = 0x30, - .limit = 0x34 - }, + { /* SE1 */ .base = 0x1ac8, .offset = 0x90, .limit = 0x90 }, + { /* SE2 */ .base = 0x1ad0, .offset = 0x90, .limit = 0x90 }, + { /* SE3 */ .base = 0x1ad8, .offset = 0x90, .limit = 0x90 }, + { /* SE4 */ .base = 0x1ae0, .offset = 0x90, .limit = 0x90 }, + { /* ISP */ .base = 0x1ae8, .offset = 0x800, .limit = 0x800 }, + { /* VIC */ .base = 0x1af0, .offset = 0x30, .limit = 0x34 }, + { /* NVENC */ .base = 0x1af8, .offset = 0x30, .limit = 0x34 }, + { /* NVDEC */ .base = 0x1b00, .offset = 0x30, .limit = 0x34 }, + { /* NVJPG */ .base = 0x1b08, .offset = 0x30, .limit = 0x34 }, + { /* TSEC */ .base = 0x1b10, .offset = 0x30, .limit = 0x34 }, + { /* TSECB */ .base = 0x1b18, .offset = 0x30, .limit = 0x34 }, + { /* VI */ .base = 0x1b80, .offset = 0x800, .limit = 0x800 }, + { /* VI_THI */ .base = 0x1b88, .offset = 0x30, .limit = 0x34 }, + { /* ISP_THI */ .base = 0x1b90, .offset = 0x30, .limit = 0x34 }, + { /* PVA0_CLUSTER */ .base = 0x1b98, .offset = 0x0, .limit = 0x0 }, + { /* PVA0_CLUSTER */ .base = 0x1ba0, .offset = 0x0, .limit = 0x0 }, + { /* NVDLA0 */ .base = 0x1ba8, .offset = 0x30, .limit = 0x34 }, + { /* NVDLA1 */ .base = 0x1bb0, .offset = 0x30, .limit = 0x34 }, + { /* NVENC1 */ .base = 0x1bb8, .offset = 0x30, .limit = 0x34 }, + { /* NVDEC1 */ .base = 0x1bc0, .offset = 0x30, .limit = 0x34 }, }; static const struct host1x_info host1x07_info = { @@ -173,7 +230,65 @@ static const struct host1x_info host1x07_info = { .reserve_vblank_syncpts = false, }; +/* + * Tegra234 has two stream ID protection tables, one for setting stream IDs + * through the channel path via SETSTREAMID, and one for setting them via + * MMIO. We program each engine's data stream ID in the channel path table + * and firmware stream ID in the MMIO path table. + */ +static const struct host1x_sid_entry tegra234_sid_table[] = { + { /* SE1 MMIO */ .base = 0x1650, .offset = 0x90, .limit = 0x90 }, + { /* SE1 ch */ .base = 0x1730, .offset = 0x90, .limit = 0x90 }, + { /* SE2 MMIO */ .base = 0x1658, .offset = 0x90, .limit = 0x90 }, + { /* SE2 ch */ .base = 0x1738, .offset = 0x90, .limit = 0x90 }, + { /* SE4 MMIO */ .base = 0x1660, .offset = 0x90, .limit = 0x90 }, + { /* SE4 ch */ .base = 0x1740, .offset = 0x90, .limit = 0x90 }, + { /* ISP MMIO */ .base = 0x1680, .offset = 0x800, .limit = 0x800 }, + { /* VIC MMIO */ .base = 0x1688, .offset = 0x34, .limit = 0x34 }, + { /* VIC ch */ .base = 0x17b8, .offset = 0x30, .limit = 0x30 }, + { /* NVENC MMIO */ .base = 0x1690, .offset = 0x34, .limit = 0x34 }, + { /* NVENC ch */ .base = 0x17c0, .offset = 0x30, .limit = 0x30 }, + { /* NVDEC MMIO */ .base = 0x1698, .offset = 0x34, .limit = 0x34 }, + { /* NVDEC ch */ .base = 0x17c8, .offset = 0x30, .limit = 0x30 }, + { /* NVJPG MMIO */ .base = 0x16a0, .offset = 0x34, .limit = 0x34 }, + { /* NVJPG ch */ .base = 0x17d0, .offset = 0x30, .limit = 0x30 }, + { /* TSEC MMIO */ .base = 0x16a8, .offset = 0x30, .limit = 0x34 }, + { /* NVJPG1 MMIO */ .base = 0x16b0, .offset = 0x34, .limit = 0x34 }, + { /* NVJPG1 ch */ .base = 0x17a8, .offset = 0x30, .limit = 0x30 }, + { /* VI MMIO */ .base = 0x16b8, .offset = 0x800, .limit = 0x800 }, + { /* VI_THI MMIO */ .base = 0x16c0, .offset = 0x30, .limit = 0x34 }, + { /* ISP_THI MMIO */ .base = 0x16c8, .offset = 0x30, .limit = 0x34 }, + { /* NVDLA MMIO */ .base = 0x16d8, .offset = 0x30, .limit = 0x34 }, + { /* NVDLA ch */ .base = 0x17e0, .offset = 0x30, .limit = 0x34 }, + { /* NVDLA1 MMIO */ .base = 0x16e0, .offset = 0x30, .limit = 0x34 }, + { /* NVDLA1 ch */ .base = 0x17e8, .offset = 0x30, .limit = 0x34 }, + { /* OFA MMIO */ .base = 0x16e8, .offset = 0x34, .limit = 0x34 }, + { /* OFA ch */ .base = 0x1768, .offset = 0x30, .limit = 0x30 }, + { /* VI2 MMIO */ .base = 0x16f0, .offset = 0x800, .limit = 0x800 }, + { /* VI2_THI MMIO */ .base = 0x16f8, .offset = 0x30, .limit = 0x34 }, +}; + +static const struct host1x_info host1x08_info = { + .nb_channels = 63, + .nb_pts = 1024, + .nb_mlocks = 24, + .nb_bases = 0, + .init = host1x08_init, + .sync_offset = 0x0, + .dma_mask = DMA_BIT_MASK(40), + .has_wide_gather = true, + .has_hypervisor = true, + .has_common = true, + .num_sid_entries = ARRAY_SIZE(tegra234_sid_table), + .sid_table = tegra234_sid_table, + .streamid_vm_table = { 0x1004, 128 }, + .classid_vm_table = { 0x1404, 25 }, + .mmio_vm_table = { 0x1504, 25 }, + .reserve_vblank_syncpts = false, +}; + static const struct of_device_id host1x_of_match[] = { + { .compatible = "nvidia,tegra234-host1x", .data = &host1x08_info, }, { .compatible = "nvidia,tegra194-host1x", .data = &host1x07_info, }, { .compatible = "nvidia,tegra186-host1x", .data = &host1x06_info, }, { .compatible = "nvidia,tegra210-host1x", .data = &host1x05_info, }, @@ -185,21 +300,43 @@ static const struct of_device_id host1x_of_match[] = { }; MODULE_DEVICE_TABLE(of, host1x_of_match); -static void host1x_setup_sid_table(struct host1x *host) +static void host1x_setup_virtualization_tables(struct host1x *host) { const struct host1x_info *info = host->info; unsigned int i; + if (!info->has_hypervisor) + return; + for (i = 0; i < info->num_sid_entries; i++) { const struct host1x_sid_entry *entry = &info->sid_table[i]; host1x_hypervisor_writel(host, entry->offset, entry->base); host1x_hypervisor_writel(host, entry->limit, entry->base + 4); } + + for (i = 0; i < info->streamid_vm_table.count; i++) { + /* Allow access to all stream IDs to all VMs. */ + host1x_hypervisor_writel(host, 0xff, info->streamid_vm_table.base + 4 * i); + } + + for (i = 0; i < info->classid_vm_table.count; i++) { + /* Allow access to all classes to all VMs. */ + host1x_hypervisor_writel(host, 0xff, info->classid_vm_table.base + 4 * i); + } + + for (i = 0; i < info->mmio_vm_table.count; i++) { + /* Use VM1 (that's us) as originator VMID for engine MMIO accesses. */ + host1x_hypervisor_writel(host, 0x1, info->mmio_vm_table.base + 4 * i); + } } static bool host1x_wants_iommu(struct host1x *host1x) { + /* Our IOMMU usage policy doesn't currently play well with GART */ + if (of_machine_is_compatible("nvidia,tegra20")) + return false; + /* * If we support addressing a maximum of 32 bits of physical memory * and if the host1x firewall is enabled, there's no need to enable @@ -233,11 +370,26 @@ static bool host1x_wants_iommu(struct host1x *host1x) return true; } +/* + * Returns ERR_PTR on failure, NULL if the translation is IDENTITY, otherwise a + * valid paging domain. + */ static struct iommu_domain *host1x_iommu_attach(struct host1x *host) { struct iommu_domain *domain = iommu_get_domain_for_dev(host->dev); int err; +#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) + if (host->dev->archdata.mapping) { + struct dma_iommu_mapping *mapping = + to_dma_iommu_mapping(host->dev); + arm_iommu_detach_device(host->dev); + arm_iommu_release_mapping(mapping); + + domain = iommu_get_domain_for_dev(host->dev); + } +#endif + /* * We may not always want to enable IOMMU support (for example if the * host1x firewall is already enabled and we don't support addressing @@ -246,6 +398,8 @@ static struct iommu_domain *host1x_iommu_attach(struct host1x *host) * Similarly, if host1x is already attached to an IOMMU (via the DMA * API), don't try to attach again. */ + if (domain && domain->type == IOMMU_DOMAIN_IDENTITY) + domain = NULL; if (!host1x_wants_iommu(host) || domain) return domain; @@ -259,9 +413,10 @@ static struct iommu_domain *host1x_iommu_attach(struct host1x *host) if (err < 0) goto put_group; - host->domain = iommu_domain_alloc(&platform_bus_type); - if (!host->domain) { - err = -ENOMEM; + host->domain = iommu_paging_domain_alloc(host->dev); + if (IS_ERR(host->domain)) { + err = PTR_ERR(host->domain); + host->domain = NULL; goto put_cache; } @@ -347,12 +502,28 @@ static void host1x_iommu_exit(struct host1x *host) } } +static int host1x_get_resets(struct host1x *host) +{ + int err; + + host->resets[0].id = "mc"; + host->resets[1].id = "host1x"; + host->nresets = ARRAY_SIZE(host->resets); + + err = devm_reset_control_bulk_get_optional_exclusive_released( + host->dev, host->nresets, host->resets); + if (err) { + dev_err(host->dev, "failed to get reset: %d\n", err); + return err; + } + + return 0; +} + static int host1x_probe(struct platform_device *pdev) { struct host1x *host; - struct resource *regs, *hv_regs = NULL; - int syncpt_irq; - int err; + int err, i; host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL); if (!host) @@ -361,30 +532,49 @@ static int host1x_probe(struct platform_device *pdev) host->info = of_device_get_match_data(&pdev->dev); if (host->info->has_hypervisor) { - regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vm"); - if (!regs) { - dev_err(&pdev->dev, "failed to get vm registers\n"); - return -ENXIO; - } + host->regs = devm_platform_ioremap_resource_byname(pdev, "vm"); + if (IS_ERR(host->regs)) + return PTR_ERR(host->regs); + + host->hv_regs = devm_platform_ioremap_resource_byname(pdev, "hypervisor"); + if (IS_ERR(host->hv_regs)) + return PTR_ERR(host->hv_regs); - hv_regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "hypervisor"); - if (!hv_regs) { - dev_err(&pdev->dev, - "failed to get hypervisor registers\n"); - return -ENXIO; + if (host->info->has_common) { + host->common_regs = devm_platform_ioremap_resource_byname(pdev, "common"); + if (IS_ERR(host->common_regs)) + return PTR_ERR(host->common_regs); } } else { - regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!regs) { - dev_err(&pdev->dev, "failed to get registers\n"); - return -ENXIO; - } + host->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(host->regs)) + return PTR_ERR(host->regs); + } + + for (i = 0; i < ARRAY_SIZE(host->syncpt_irqs); i++) { + char irq_name[] = "syncptX"; + + sprintf(irq_name, "syncpt%d", i); + + err = platform_get_irq_byname_optional(pdev, irq_name); + if (err == -ENXIO) + break; + if (err < 0) + return err; + + host->syncpt_irqs[i] = err; } - syncpt_irq = platform_get_irq(pdev, 0); - if (syncpt_irq < 0) - return syncpt_irq; + host->num_syncpt_irqs = i; + + /* Device tree without irq names */ + if (i == 0) { + host->syncpt_irqs[0] = platform_get_irq(pdev, 0); + if (host->syncpt_irqs[0] < 0) + return host->syncpt_irqs[0]; + + host->num_syncpt_irqs = 1; + } mutex_init(&host->devices_lock); INIT_LIST_HEAD(&host->devices); @@ -394,16 +584,6 @@ static int host1x_probe(struct platform_device *pdev) /* set common host1x device data */ platform_set_drvdata(pdev, host); - host->regs = devm_ioremap_resource(&pdev->dev, regs); - if (IS_ERR(host->regs)) - return PTR_ERR(host->regs); - - if (host->info->has_hypervisor) { - host->hv_regs = devm_ioremap_resource(&pdev->dev, hv_regs); - if (IS_ERR(host->hv_regs)) - return PTR_ERR(host->hv_regs); - } - host->dev->dma_parms = &host->dma_parms; dma_set_max_seg_size(host->dev, UINT_MAX); @@ -414,26 +594,19 @@ static int host1x_probe(struct platform_device *pdev) } host->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(host->clk)) { - err = PTR_ERR(host->clk); - - if (err != -EPROBE_DEFER) - dev_err(&pdev->dev, "failed to get clock: %d\n", err); + if (IS_ERR(host->clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(host->clk), "failed to get clock\n"); + err = host1x_get_resets(host); + if (err) return err; - } - host->rst = devm_reset_control_get(&pdev->dev, "host1x"); - if (IS_ERR(host->rst)) { - err = PTR_ERR(host->rst); - dev_err(&pdev->dev, "failed to get reset: %d\n", err); - return err; - } + host1x_bo_cache_init(&host->cache); err = host1x_iommu_init(host); if (err < 0) { dev_err(&pdev->dev, "failed to setup IOMMU: %d\n", err); - return err; + goto destroy_cache; } err = host1x_channel_list_init(&host->channel_list, @@ -443,35 +616,39 @@ static int host1x_probe(struct platform_device *pdev) goto iommu_exit; } - err = clk_prepare_enable(host->clk); - if (err < 0) { - dev_err(&pdev->dev, "failed to enable clock\n"); + err = host1x_memory_context_list_init(host); + if (err) { + dev_err(&pdev->dev, "failed to initialize context list\n"); goto free_channels; } - err = reset_control_deassert(host->rst); - if (err < 0) { - dev_err(&pdev->dev, "failed to deassert reset: %d\n", err); - goto unprepare_disable; - } - err = host1x_syncpt_init(host); if (err) { dev_err(&pdev->dev, "failed to initialize syncpts\n"); - goto reset_assert; + goto free_contexts; } - err = host1x_intr_init(host, syncpt_irq); + mutex_init(&host->intr_mutex); + + pm_runtime_enable(&pdev->dev); + + err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev); + if (err) + goto pm_disable; + + /* the driver's code isn't ready yet for the dynamic RPM */ + err = pm_runtime_resume_and_get(&pdev->dev); + if (err) + goto pm_disable; + + err = host1x_intr_init(host); if (err) { dev_err(&pdev->dev, "failed to initialize interrupts\n"); - goto deinit_syncpt; + goto pm_put; } host1x_debug_init(host); - if (host->info->has_hypervisor) - host1x_setup_sid_table(host); - err = host1x_register(host); if (err < 0) goto deinit_debugfs; @@ -487,39 +664,120 @@ unregister: deinit_debugfs: host1x_debug_deinit(host); host1x_intr_deinit(host); -deinit_syncpt: +pm_put: + pm_runtime_put_sync_suspend(&pdev->dev); +pm_disable: + pm_runtime_disable(&pdev->dev); host1x_syncpt_deinit(host); -reset_assert: - reset_control_assert(host->rst); -unprepare_disable: - clk_disable_unprepare(host->clk); +free_contexts: + host1x_memory_context_list_free(&host->context_list); free_channels: host1x_channel_list_free(&host->channel_list); iommu_exit: host1x_iommu_exit(host); +destroy_cache: + host1x_bo_cache_destroy(&host->cache); return err; } -static int host1x_remove(struct platform_device *pdev) +static void host1x_remove(struct platform_device *pdev) { struct host1x *host = platform_get_drvdata(pdev); host1x_unregister(host); host1x_debug_deinit(host); + + pm_runtime_force_suspend(&pdev->dev); + host1x_intr_deinit(host); host1x_syncpt_deinit(host); - reset_control_assert(host->rst); - clk_disable_unprepare(host->clk); + host1x_memory_context_list_free(&host->context_list); + host1x_channel_list_free(&host->channel_list); host1x_iommu_exit(host); + host1x_bo_cache_destroy(&host->cache); +} + +static int __maybe_unused host1x_runtime_suspend(struct device *dev) +{ + struct host1x *host = dev_get_drvdata(dev); + int err; + + host1x_channel_stop_all(host); + host1x_intr_stop(host); + host1x_syncpt_save(host); + + if (!host->info->skip_reset_assert) { + err = reset_control_bulk_assert(host->nresets, host->resets); + if (err) { + dev_err(dev, "failed to assert reset: %d\n", err); + goto resume_host1x; + } + + usleep_range(1000, 2000); + } + + clk_disable_unprepare(host->clk); + reset_control_bulk_release(host->nresets, host->resets); return 0; + +resume_host1x: + host1x_setup_virtualization_tables(host); + host1x_syncpt_restore(host); + host1x_intr_start(host); + + return err; } +static int __maybe_unused host1x_runtime_resume(struct device *dev) +{ + struct host1x *host = dev_get_drvdata(dev); + int err; + + err = reset_control_bulk_acquire(host->nresets, host->resets); + if (err) { + dev_err(dev, "failed to acquire reset: %d\n", err); + return err; + } + + err = clk_prepare_enable(host->clk); + if (err) { + dev_err(dev, "failed to enable clock: %d\n", err); + goto release_reset; + } + + err = reset_control_bulk_deassert(host->nresets, host->resets); + if (err < 0) { + dev_err(dev, "failed to deassert reset: %d\n", err); + goto disable_clk; + } + + host1x_setup_virtualization_tables(host); + host1x_syncpt_restore(host); + host1x_intr_start(host); + + return 0; + +disable_clk: + clk_disable_unprepare(host->clk); +release_reset: + reset_control_bulk_release(host->nresets, host->resets); + + return err; +} + +static const struct dev_pm_ops host1x_pm_ops = { + SET_RUNTIME_PM_OPS(host1x_runtime_suspend, host1x_runtime_resume, + NULL) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) +}; + static struct platform_driver tegra_host1x_driver = { .driver = { .name = "tegra-host1x", .of_match_table = host1x_of_match, + .pm = &host1x_pm_ops, }, .probe = host1x_probe, .remove = host1x_remove, @@ -566,6 +824,7 @@ u64 host1x_get_dma_mask(struct host1x *host1x) } EXPORT_SYMBOL(host1x_get_dma_mask); +MODULE_SOFTDEP("post: tegra-drm"); MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>"); MODULE_AUTHOR("Terje Bergstrom <tbergstrom@nvidia.com>"); MODULE_DESCRIPTION("Host1x driver for Tegra products"); |