diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/vic.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/vic.c | 123 |
1 files changed, 104 insertions, 19 deletions
diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c index 9f657a63b0bb..982ce37ecde1 100644 --- a/drivers/gpu/drm/tegra/vic.c +++ b/drivers/gpu/drm/tegra/vic.c @@ -26,6 +26,7 @@ struct vic_config { const char *firmware; unsigned int version; + bool supports_sid; }; struct vic { @@ -38,6 +39,7 @@ struct vic { struct iommu_domain *domain; struct device *dev; struct clk *clk; + struct reset_control *rst; /* Platform configuration */ const struct vic_config *config; @@ -56,13 +58,37 @@ static void vic_writel(struct vic *vic, u32 value, unsigned int offset) static int vic_runtime_resume(struct device *dev) { struct vic *vic = dev_get_drvdata(dev); + int err; + + err = clk_prepare_enable(vic->clk); + if (err < 0) + return err; + + usleep_range(10, 20); - return clk_prepare_enable(vic->clk); + err = reset_control_deassert(vic->rst); + if (err < 0) + goto disable; + + usleep_range(10, 20); + + return 0; + +disable: + clk_disable_unprepare(vic->clk); + return err; } static int vic_runtime_suspend(struct device *dev) { struct vic *vic = dev_get_drvdata(dev); + int err; + + err = reset_control_assert(vic->rst); + if (err < 0) + return err; + + usleep_range(2000, 4000); clk_disable_unprepare(vic->clk); @@ -80,6 +106,24 @@ static int vic_boot(struct vic *vic) if (vic->booted) return 0; +#ifdef CONFIG_IOMMU_API + if (vic->config->supports_sid) { + struct iommu_fwspec *spec = dev_iommu_fwspec_get(vic->dev); + u32 value; + + value = TRANSCFG_ATT(1, TRANSCFG_SID_FALCON) | + TRANSCFG_ATT(0, TRANSCFG_SID_HW); + vic_writel(vic, value, VIC_TFBIF_TRANSCFG); + + if (spec && spec->num_ids > 0) { + value = spec->ids[0] & 0xffff; + + vic_writel(vic, value, VIC_THI_STREAMID0); + vic_writel(vic, value, VIC_THI_STREAMID1); + } + } +#endif + /* setup clockgating registers */ vic_writel(vic, CG_IDLE_CG_DLY_CNT(4) | CG_IDLE_CG_EN | @@ -156,13 +200,6 @@ static int vic_init(struct host1x_client *client) vic->domain = tegra->domain; } - if (!vic->falcon.data) { - vic->falcon.data = tegra; - err = falcon_load_firmware(&vic->falcon); - if (err < 0) - goto detach; - } - vic->channel = host1x_channel_request(client->dev); if (!vic->channel) { err = -ENOMEM; @@ -221,6 +258,30 @@ static const struct host1x_client_ops vic_client_ops = { .exit = vic_exit, }; +static int vic_load_firmware(struct vic *vic) +{ + int err; + + if (vic->falcon.data) + return 0; + + vic->falcon.data = vic->client.drm; + + err = falcon_read_firmware(&vic->falcon, vic->config->firmware); + if (err < 0) + goto cleanup; + + err = falcon_load_firmware(&vic->falcon); + if (err < 0) + goto cleanup; + + return 0; + +cleanup: + vic->falcon.data = NULL; + return err; +} + static int vic_open_channel(struct tegra_drm_client *client, struct tegra_drm_context *context) { @@ -231,19 +292,25 @@ static int vic_open_channel(struct tegra_drm_client *client, if (err < 0) return err; + err = vic_load_firmware(vic); + if (err < 0) + goto rpm_put; + err = vic_boot(vic); - if (err < 0) { - pm_runtime_put(vic->dev); - return err; - } + if (err < 0) + goto rpm_put; context->channel = host1x_channel_get(vic->channel); if (!context->channel) { - pm_runtime_put(vic->dev); - return -ENOMEM; + err = -ENOMEM; + goto rpm_put; } return 0; + +rpm_put: + pm_runtime_put(vic->dev); + return err; } static void vic_close_channel(struct tegra_drm_context *context) @@ -266,6 +333,7 @@ static const struct tegra_drm_client_ops vic_ops = { static const struct vic_config vic_t124_config = { .firmware = NVIDIA_TEGRA_124_VIC_FIRMWARE, .version = 0x40, + .supports_sid = false, }; #define NVIDIA_TEGRA_210_VIC_FIRMWARE "nvidia/tegra210/vic04_ucode.bin" @@ -273,6 +341,7 @@ static const struct vic_config vic_t124_config = { static const struct vic_config vic_t210_config = { .firmware = NVIDIA_TEGRA_210_VIC_FIRMWARE, .version = 0x21, + .supports_sid = false, }; #define NVIDIA_TEGRA_186_VIC_FIRMWARE "nvidia/tegra186/vic04_ucode.bin" @@ -280,12 +349,22 @@ static const struct vic_config vic_t210_config = { static const struct vic_config vic_t186_config = { .firmware = NVIDIA_TEGRA_186_VIC_FIRMWARE, .version = 0x18, + .supports_sid = true, +}; + +#define NVIDIA_TEGRA_194_VIC_FIRMWARE "nvidia/tegra194/vic.bin" + +static const struct vic_config vic_t194_config = { + .firmware = NVIDIA_TEGRA_194_VIC_FIRMWARE, + .version = 0x19, + .supports_sid = true, }; static const struct of_device_id vic_match[] = { { .compatible = "nvidia,tegra124-vic", .data = &vic_t124_config }, { .compatible = "nvidia,tegra210-vic", .data = &vic_t210_config }, { .compatible = "nvidia,tegra186-vic", .data = &vic_t186_config }, + { .compatible = "nvidia,tegra194-vic", .data = &vic_t194_config }, { }, }; @@ -323,6 +402,14 @@ static int vic_probe(struct platform_device *pdev) return PTR_ERR(vic->clk); } + if (!dev->pm_domain) { + vic->rst = devm_reset_control_get(dev, "vic"); + if (IS_ERR(vic->rst)) { + dev_err(&pdev->dev, "failed to get reset\n"); + return PTR_ERR(vic->rst); + } + } + vic->falcon.dev = dev; vic->falcon.regs = vic->regs; vic->falcon.ops = &vic_falcon_ops; @@ -331,10 +418,6 @@ static int vic_probe(struct platform_device *pdev) if (err < 0) return err; - err = falcon_read_firmware(&vic->falcon, vic->config->firmware); - if (err < 0) - goto exit_falcon; - platform_set_drvdata(pdev, vic); INIT_LIST_HEAD(&vic->client.base.list); @@ -352,7 +435,6 @@ static int vic_probe(struct platform_device *pdev) err = host1x_client_register(&vic->client.base); if (err < 0) { dev_err(dev, "failed to register host1x client: %d\n", err); - platform_set_drvdata(pdev, NULL); goto exit_falcon; } @@ -418,3 +500,6 @@ MODULE_FIRMWARE(NVIDIA_TEGRA_210_VIC_FIRMWARE); #if IS_ENABLED(CONFIG_ARCH_TEGRA_186_SOC) MODULE_FIRMWARE(NVIDIA_TEGRA_186_VIC_FIRMWARE); #endif +#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) +MODULE_FIRMWARE(NVIDIA_TEGRA_194_VIC_FIRMWARE); +#endif |