Use the devm_drm_dev_alloc provided by the drm framework to alloc
a struct hibmc_drm_private.
Signed-off-by: Tian Tao <[email protected]>
---
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 2 +-
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 51 +++++++++++-------------
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 2 +-
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 2 +-
drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 8 ++--
5 files changed, 31 insertions(+), 34 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..ea3d81b 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -80,30 +80,31 @@ static const struct dev_pm_ops hibmc_pm_ops = {
static int hibmc_kms_init(struct hibmc_drm_private *priv)
{
int ret;
+ struct drm_device *dev = &priv->dev;
- 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 = dev->dev_private;
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;
@@ -318,19 +312,22 @@ 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->dev_private = priv;
dev->pdev = pdev;
pci_set_drvdata(pdev, dev);
ret = pci_enable_device(pdev);
if (ret) {
drm_err(dev, "failed to enable pci device: %d\n", ret);
- goto err_free;
+ return ret;
}
ret = hibmc_load(dev);
@@ -354,8 +351,6 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
hibmc_unload(dev);
err_disable:
pci_disable_device(pdev);
-err_free:
- drm_dev_put(dev);
return ret;
}
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
index f310a83..e35353a 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;
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,
--
2.7.4
Hi
Am 26.11.20 um 14:05 schrieb Thomas Zimmermann:
> Hi
>
> Am 26.11.20 um 13:02 schrieb Tian Tao:
>> Use the devm_drm_dev_alloc provided by the drm framework to alloc
>> a struct hibmc_drm_private.
>>
>> Signed-off-by: Tian Tao <[email protected]>
>> ---
>> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 2 +-
>> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 51
>> +++++++++++-------------
>> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 2 +-
>> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 2 +-
>> drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 8 ++--
>> 5 files changed, 31 insertions(+), 34 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..ea3d81b 100644
>> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
>> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
>> @@ -80,30 +80,31 @@ static const struct dev_pm_ops hibmc_pm_ops = {
>> static int hibmc_kms_init(struct hibmc_drm_private *priv)
>> {
>> int ret;
>> + struct drm_device *dev = &priv->dev;
>
> I think that's good style. Pointers deserve their own local variable if
> they are used multiple times within a function. I would move this change
> into a separate patch, because it's only semi-related to the actual
> changes.
>
>> - 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 = dev->dev_private;
>
> Please use to_hibmc_drm_private() instead. dev_private is deprecated.
>
>> 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;
>> @@ -318,19 +312,22 @@ 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->dev_private = priv;
>
> Don't do this assignment. After this patch, no code in hibmc should
> touch dev_private. Instead, change to_hibmc_drm_private() to upcast from
> dev. As in [1].
[1] was supposed to be
https://elixir.bootlin.com/linux/v5.9.11/source/drivers/gpu/drm/mgag200/mgag200_drv.h#L177
Best regards
Thomas
>
>> dev->pdev = pdev;
>> pci_set_drvdata(pdev, dev);
>> ret = pci_enable_device(pdev);
>> if (ret) {
>> drm_err(dev, "failed to enable pci device: %d\n", ret);
>> - goto err_free;
>> + return ret;
>> }
>> ret = hibmc_load(dev);
>> @@ -354,8 +351,6 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
>> hibmc_unload(dev);
>> err_disable:
>> pci_disable_device(pdev);
>> -err_free:
>> - drm_dev_put(dev);
>> return ret;
>> }
>> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
>> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
>> index f310a83..e35353a 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;
>> 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);
>
> That's OK for now. A good follow-up patchset is the conversion to
> managed DRM helpers. We have these for modesetting, vram helpers and
> others.
>
>> }
>> int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
>>
>
>
> _______________________________________________
> dri-devel mailing list
> [email protected]
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
Hi
Am 26.11.20 um 13:02 schrieb Tian Tao:
> Use the devm_drm_dev_alloc provided by the drm framework to alloc
> a struct hibmc_drm_private.
>
> Signed-off-by: Tian Tao <[email protected]>
> ---
> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 2 +-
> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 51 +++++++++++-------------
> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 2 +-
> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 2 +-
> drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 8 ++--
> 5 files changed, 31 insertions(+), 34 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..ea3d81b 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> @@ -80,30 +80,31 @@ static const struct dev_pm_ops hibmc_pm_ops = {
> static int hibmc_kms_init(struct hibmc_drm_private *priv)
> {
> int ret;
> + struct drm_device *dev = &priv->dev;
I think that's good style. Pointers deserve their own local variable if
they are used multiple times within a function. I would move this change
into a separate patch, because it's only semi-related to the actual changes.
>
> - 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 = dev->dev_private;
Please use to_hibmc_drm_private() instead. dev_private is deprecated.
> 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;
>
> @@ -318,19 +312,22 @@ 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->dev_private = priv;
Don't do this assignment. After this patch, no code in hibmc should
touch dev_private. Instead, change to_hibmc_drm_private() to upcast from
dev. As in [1].
> dev->pdev = pdev;
> pci_set_drvdata(pdev, dev);
>
> ret = pci_enable_device(pdev);
> if (ret) {
> drm_err(dev, "failed to enable pci device: %d\n", ret);
> - goto err_free;
> + return ret;
> }
>
> ret = hibmc_load(dev);
> @@ -354,8 +351,6 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
> hibmc_unload(dev);
> err_disable:
> pci_disable_device(pdev);
> -err_free:
> - drm_dev_put(dev);
>
> return ret;
> }
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
> index f310a83..e35353a 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;
> 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);
That's OK for now. A good follow-up patchset is the conversion to
managed DRM helpers. We have these for modesetting, vram helpers and others.
> }
>
> int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer