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Date: Wed, 2 Dec 2020 17:27:51 +0800 From: "tiantao (H)" <tiantao6@...wei.com> To: Thomas Zimmermann <tzimmermann@...e.de>, Tian Tao <tiantao6@...ilicon.com>, <airlied@...ux.ie>, <daniel@...ll.ch>, <kraxel@...hat.com>, <alexander.deucher@....com>, <tglx@...utronix.de>, <dri-devel@...ts.freedesktop.org>, <xinliang.liu@...aro.org>, <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org> CC: <linux-kernel@...r.kernel.org> Subject: Re: [PATCH drm/hisilicon 1/3] drm/hisilicon: Code refactoring for hibmc_drm_drv Hi 在 2020/12/2 17:02, Thomas Zimmermann 写道: > > > Am 02.12.20 um 09:47 schrieb Tian Tao: >> Use the devm_drm_dev_alloc provided by the drm framework to alloc >> a structure hibmc_drm_private. >> >> Signed-off-by: Tian Tao <tiantao6@...ilicon.com> > > This looks good now. Thanks for sticking to it. > Thank you for your continued patience and guidance. > Acked-by: Thomas Zimmermann <tzimmermann@...e.de> > >> --- >> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 2 +- >> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 46 >> +++++++++++------------- >> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 4 +-- >> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 2 +- >> drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 8 +++-- >> 5 files changed, 30 insertions(+), 32 deletions(-) >> >> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c >> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c >> index ea962ac..096eea9 100644 >> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c >> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c >> @@ -499,7 +499,7 @@ static const struct drm_crtc_helper_funcs >> hibmc_crtc_helper_funcs = { >> int hibmc_de_init(struct hibmc_drm_private *priv) >> { >> - struct drm_device *dev = priv->dev; >> + struct drm_device *dev = &priv->dev; >> struct drm_crtc *crtc = &priv->crtc; >> struct drm_plane *plane = &priv->primary_plane; >> int ret; >> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c >> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c >> index d845657..13e8a28 100644 >> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c >> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c >> @@ -79,31 +79,32 @@ static const struct dev_pm_ops hibmc_pm_ops = { >> static int hibmc_kms_init(struct hibmc_drm_private *priv) >> { >> + struct drm_device *dev = &priv->dev; >> int ret; >> - drm_mode_config_init(priv->dev); >> + drm_mode_config_init(dev); >> priv->mode_config_initialized = true; >> - priv->dev->mode_config.min_width = 0; >> - priv->dev->mode_config.min_height = 0; >> - priv->dev->mode_config.max_width = 1920; >> - priv->dev->mode_config.max_height = 1200; >> + dev->mode_config.min_width = 0; >> + dev->mode_config.min_height = 0; >> + dev->mode_config.max_width = 1920; >> + dev->mode_config.max_height = 1200; >> - priv->dev->mode_config.fb_base = priv->fb_base; >> - priv->dev->mode_config.preferred_depth = 32; >> - priv->dev->mode_config.prefer_shadow = 1; >> + dev->mode_config.fb_base = priv->fb_base; >> + dev->mode_config.preferred_depth = 32; >> + dev->mode_config.prefer_shadow = 1; >> - priv->dev->mode_config.funcs = (void *)&hibmc_mode_funcs; >> + dev->mode_config.funcs = (void *)&hibmc_mode_funcs; >> ret = hibmc_de_init(priv); >> if (ret) { >> - drm_err(priv->dev, "failed to init de: %d\n", ret); >> + drm_err(dev, "failed to init de: %d\n", ret); >> return ret; >> } >> ret = hibmc_vdac_init(priv); >> if (ret) { >> - drm_err(priv->dev, "failed to init vdac: %d\n", ret); >> + drm_err(dev, "failed to init vdac: %d\n", ret); >> return ret; >> } >> @@ -113,7 +114,7 @@ static int hibmc_kms_init(struct hibmc_drm_private >> *priv) >> static void hibmc_kms_fini(struct hibmc_drm_private *priv) >> { >> if (priv->mode_config_initialized) { >> - drm_mode_config_cleanup(priv->dev); >> + drm_mode_config_cleanup(&priv->dev); >> priv->mode_config_initialized = false; >> } >> } >> @@ -202,7 +203,7 @@ static void hibmc_hw_config(struct >> hibmc_drm_private *priv) >> static int hibmc_hw_map(struct hibmc_drm_private *priv) >> { >> - struct drm_device *dev = priv->dev; >> + struct drm_device *dev = &priv->dev; >> struct pci_dev *pdev = dev->pdev; >> resource_size_t addr, size, ioaddr, iosize; >> @@ -258,17 +259,9 @@ static int hibmc_unload(struct drm_device *dev) >> static int hibmc_load(struct drm_device *dev) >> { >> - struct hibmc_drm_private *priv; >> + struct hibmc_drm_private *priv = to_hibmc_drm_private(dev); >> int ret; >> - priv = drmm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); >> - if (!priv) { >> - drm_err(dev, "no memory to allocate for hibmc_drm_private\n"); >> - return -ENOMEM; >> - } >> - dev->dev_private = priv; >> - priv->dev = dev; >> - >> ret = hibmc_hw_init(priv); >> if (ret) >> goto err; >> @@ -310,6 +303,7 @@ static int hibmc_load(struct drm_device *dev) >> static int hibmc_pci_probe(struct pci_dev *pdev, >> const struct pci_device_id *ent) >> { >> + struct hibmc_drm_private *priv; >> struct drm_device *dev; >> int ret; >> @@ -318,12 +312,14 @@ static int hibmc_pci_probe(struct pci_dev *pdev, >> if (ret) >> return ret; >> - dev = drm_dev_alloc(&hibmc_driver, &pdev->dev); >> - if (IS_ERR(dev)) { >> + priv = devm_drm_dev_alloc(&pdev->dev, &hibmc_driver, >> + struct hibmc_drm_private, dev); >> + if (IS_ERR(priv)) { >> DRM_ERROR("failed to allocate drm_device\n"); >> - return PTR_ERR(dev); >> + return PTR_ERR(priv); >> } >> + dev = &priv->dev; >> dev->pdev = pdev; >> pci_set_drvdata(pdev, dev); >> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h >> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h >> index f310a83..7e0c756 100644 >> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h >> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h >> @@ -37,7 +37,7 @@ struct hibmc_drm_private { >> resource_size_t fb_size; >> /* drm */ >> - struct drm_device *dev; >> + struct drm_device dev; >> struct drm_plane primary_plane; >> struct drm_crtc crtc; >> struct drm_encoder encoder; >> @@ -52,7 +52,7 @@ static inline struct hibmc_connector >> *to_hibmc_connector(struct drm_connector *c >> static inline struct hibmc_drm_private *to_hibmc_drm_private(struct >> drm_device *dev) >> { >> - return dev->dev_private; >> + return container_of(dev, struct hibmc_drm_private, dev); >> } >> void hibmc_set_power_mode(struct hibmc_drm_private *priv, >> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c >> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c >> index 74e26c2..d35548d 100644 >> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c >> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c >> @@ -96,7 +96,7 @@ static const struct drm_encoder_funcs >> hibmc_encoder_funcs = { >> int hibmc_vdac_init(struct hibmc_drm_private *priv) >> { >> - struct drm_device *dev = priv->dev; >> + struct drm_device *dev = &priv->dev; >> struct hibmc_connector *hibmc_connector = &priv->connector; >> struct drm_encoder *encoder = &priv->encoder; >> struct drm_connector *connector = &hibmc_connector->base; >> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c >> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c >> index 602ece1..e84fb81 100644 >> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c >> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c >> @@ -25,7 +25,7 @@ int hibmc_mm_init(struct hibmc_drm_private *hibmc) >> { >> struct drm_vram_mm *vmm; >> int ret; >> - struct drm_device *dev = hibmc->dev; >> + struct drm_device *dev = &hibmc->dev; >> vmm = drm_vram_helper_alloc_mm(dev, >> pci_resource_start(dev->pdev, 0), >> @@ -41,10 +41,12 @@ int hibmc_mm_init(struct hibmc_drm_private *hibmc) >> void hibmc_mm_fini(struct hibmc_drm_private *hibmc) >> { >> - if (!hibmc->dev->vram_mm) >> + struct drm_device *dev = &hibmc->dev; >> + >> + if (!dev->vram_mm) >> return; >> - drm_vram_helper_release_mm(hibmc->dev); >> + drm_vram_helper_release_mm(dev); >> } >> int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev, >> >
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