diff options
Diffstat (limited to 'drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 134 |
1 files changed, 99 insertions, 35 deletions
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index f4bc5386574a..289304500ab0 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -11,24 +11,30 @@ * Jianhua Li <lijianhua@huawei.com> */ +#include <linux/aperture.h> #include <linux/module.h> #include <linux/pci.h> -#include <drm/drm_aperture.h> +#include <drm/clients/drm_client_setup.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_drv.h> +#include <drm/drm_fbdev_ttm.h> #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_gem_vram_helper.h> -#include <drm/drm_irq.h> #include <drm/drm_managed.h> +#include <drm/drm_module.h> #include <drm/drm_vblank.h> #include "hibmc_drm_drv.h" #include "hibmc_drm_regs.h" +#include "dp/dp_reg.h" + DEFINE_DRM_GEM_FOPS(hibmc_fops); -static irqreturn_t hibmc_drm_interrupt(int irq, void *arg) +static const char *g_irqs_names_map[HIBMC_MAX_VECTORS] = { "hibmc-vblank", "hibmc-hpd" }; + +static irqreturn_t hibmc_interrupt(int irq, void *arg) { struct drm_device *dev = (struct drm_device *)arg; struct hibmc_drm_private *priv = to_hibmc_drm_private(dev); @@ -45,6 +51,22 @@ static irqreturn_t hibmc_drm_interrupt(int irq, void *arg) return IRQ_HANDLED; } +static irqreturn_t hibmc_dp_interrupt(int irq, void *arg) +{ + struct drm_device *dev = (struct drm_device *)arg; + struct hibmc_drm_private *priv = to_hibmc_drm_private(dev); + u32 status; + + status = readl(priv->mmio + HIBMC_DP_INTSTAT); + if (status) { + priv->dp.irq_status = status; + writel(status, priv->mmio + HIBMC_DP_INTCLR); + return IRQ_WAKE_THREAD; + } + + return IRQ_HANDLED; +} + static int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args) { @@ -55,15 +77,13 @@ static const struct drm_driver hibmc_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, .fops = &hibmc_fops, .name = "hibmc", - .date = "20160828", .desc = "hibmc drm driver", .major = 1, .minor = 0, .debugfs_init = drm_vram_mm_debugfs_init, .dumb_create = hibmc_dumb_create, .dumb_map_offset = drm_gem_ttm_dumb_map_offset, - .gem_prime_mmap = drm_gem_prime_mmap, - .irq_handler = hibmc_drm_interrupt, + DRM_FBDEV_TTM_DRIVER_OPS, }; static int __maybe_unused hibmc_pm_suspend(struct device *dev) @@ -95,6 +115,8 @@ static const struct drm_mode_config_funcs hibmc_mode_funcs = { static int hibmc_kms_init(struct hibmc_drm_private *priv) { struct drm_device *dev = &priv->dev; + struct drm_encoder *encoder; + u32 clone_mask = 0; int ret; ret = drmm_mode_config_init(dev); @@ -106,8 +128,7 @@ static int hibmc_kms_init(struct hibmc_drm_private *priv) dev->mode_config.max_width = 1920; dev->mode_config.max_height = 1200; - dev->mode_config.fb_base = priv->fb_base; - dev->mode_config.preferred_depth = 32; + dev->mode_config.preferred_depth = 24; dev->mode_config.prefer_shadow = 1; dev->mode_config.funcs = (void *)&hibmc_mode_funcs; @@ -118,12 +139,29 @@ static int hibmc_kms_init(struct hibmc_drm_private *priv) return ret; } + /* + * If the serdes reg is readable and is not equal to 0, + * DP block exists and initializes it. + */ + ret = readl(priv->mmio + HIBMC_DP_HOST_SERDES_CTRL); + if (ret) { + ret = hibmc_dp_init(priv); + if (ret) + drm_err(dev, "failed to init dp: %d\n", ret); + } + ret = hibmc_vdac_init(priv); if (ret) { drm_err(dev, "failed to init vdac: %d\n", ret); return ret; } + drm_for_each_encoder(encoder, dev) + clone_mask |= drm_encoder_mask(encoder); + + drm_for_each_encoder(encoder, dev) + encoder->possible_clones = clone_mask; + return 0; } @@ -213,7 +251,7 @@ static int hibmc_hw_map(struct hibmc_drm_private *priv) { struct drm_device *dev = &priv->dev; struct pci_dev *pdev = to_pci_dev(dev->dev); - resource_size_t addr, size, ioaddr, iosize; + resource_size_t ioaddr, iosize; ioaddr = pci_resource_start(pdev, 1); iosize = pci_resource_len(pdev, 1); @@ -223,16 +261,6 @@ static int hibmc_hw_map(struct hibmc_drm_private *priv) return -ENOMEM; } - addr = pci_resource_start(pdev, 0); - size = pci_resource_len(pdev, 0); - priv->fb_map = devm_ioremap(dev->dev, addr, size); - if (!priv->fb_map) { - drm_err(dev, "Cannot map framebuffer\n"); - return -ENOMEM; - } - priv->fb_base = addr; - priv->fb_size = size; - return 0; } @@ -249,14 +277,44 @@ static int hibmc_hw_init(struct hibmc_drm_private *priv) return 0; } -static int hibmc_unload(struct drm_device *dev) +static void hibmc_unload(struct drm_device *dev) { drm_atomic_helper_shutdown(dev); +} + +static int hibmc_msi_init(struct drm_device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev->dev); + int valid_irq_num; + int irq; + int ret; - if (dev->irq_enabled) - drm_irq_uninstall(dev); + ret = pci_alloc_irq_vectors(pdev, HIBMC_MIN_VECTORS, + HIBMC_MAX_VECTORS, PCI_IRQ_MSI); + if (ret < 0) { + drm_err(dev, "enabling MSI failed: %d\n", ret); + return ret; + } - pci_disable_msi(to_pci_dev(dev->dev)); + valid_irq_num = ret; + + for (int i = 0; i < valid_irq_num; i++) { + irq = pci_irq_vector(pdev, i); + + if (i) + /* PCI devices require shared interrupts. */ + ret = devm_request_threaded_irq(&pdev->dev, irq, + hibmc_dp_interrupt, + hibmc_dp_hpd_isr, + IRQF_SHARED, g_irqs_names_map[i], dev); + else + ret = devm_request_irq(&pdev->dev, irq, hibmc_interrupt, + IRQF_SHARED, g_irqs_names_map[i], dev); + if (ret) { + drm_err(dev, "install irq failed: %d\n", ret); + return ret; + } + } return 0; } @@ -269,12 +327,13 @@ static int hibmc_load(struct drm_device *dev) ret = hibmc_hw_init(priv); if (ret) - goto err; + return ret; - ret = drmm_vram_helper_init(dev, pci_resource_start(pdev, 0), priv->fb_size); + ret = drmm_vram_helper_init(dev, pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0)); if (ret) { drm_err(dev, "Error initializing VRAM MM; %d\n", ret); - goto err; + return ret; } ret = hibmc_kms_init(priv); @@ -287,13 +346,10 @@ static int hibmc_load(struct drm_device *dev) goto err; } - ret = pci_enable_msi(pdev); + ret = hibmc_msi_init(dev); if (ret) { - drm_warn(dev, "enabling MSI failed: %d\n", ret); - } else { - ret = drm_irq_install(dev, pdev->irq); - if (ret) - drm_warn(dev, "install irq failed: %d\n", ret); + drm_err(dev, "hibmc msi init failed, ret:%d\n", ret); + goto err; } /* reset all the states of crtc/plane/encoder/connector */ @@ -314,7 +370,7 @@ static int hibmc_pci_probe(struct pci_dev *pdev, struct drm_device *dev; int ret; - ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, "hibmcdrmfb"); + ret = aperture_remove_conflicting_pci_devices(pdev, hibmc_driver.name); if (ret) return ret; @@ -334,6 +390,8 @@ static int hibmc_pci_probe(struct pci_dev *pdev, goto err_return; } + pci_set_master(pdev); + ret = hibmc_load(dev); if (ret) { drm_err(dev, "failed to load hibmc: %d\n", ret); @@ -347,7 +405,7 @@ static int hibmc_pci_probe(struct pci_dev *pdev, goto err_unload; } - drm_fbdev_generic_setup(dev, dev->mode_config.preferred_depth); + drm_client_setup(dev, NULL); return 0; @@ -365,6 +423,11 @@ static void hibmc_pci_remove(struct pci_dev *pdev) hibmc_unload(dev); } +static void hibmc_pci_shutdown(struct pci_dev *pdev) +{ + hibmc_pci_remove(pdev); +} + static const struct pci_device_id hibmc_pci_table[] = { { PCI_VDEVICE(HUAWEI, 0x1711) }, {0,} @@ -375,10 +438,11 @@ static struct pci_driver hibmc_pci_driver = { .id_table = hibmc_pci_table, .probe = hibmc_pci_probe, .remove = hibmc_pci_remove, + .shutdown = hibmc_pci_shutdown, .driver.pm = &hibmc_pm_ops, }; -module_pci_driver(hibmc_pci_driver); +drm_module_pci_driver(hibmc_pci_driver); MODULE_DEVICE_TABLE(pci, hibmc_pci_table); MODULE_AUTHOR("RongrongZou <zourongrong@huawei.com>"); |