[PATCH 3/3] drm/amdgpu: Embed drm_device into amdgpu_device (v2)
Luben Tuikov
luben.tuikov at amd.com
Wed Aug 19 05:00:42 UTC 2020
a) Embed struct drm_device into struct amdgpu_device.
b) Modify the inline-f drm_to_adev() accordingly.
c) Modify the inline-f adev_to_drm() accordingly.
d) Eliminate the use of drm_device.dev_private,
in amdgpu.
e) Switch from using drm_dev_alloc() to
drm_dev_init().
f) Add a DRM driver release function, which frees
the container amdgpu_device after all krefs on
the contained drm_device have been released.
v2: Split out adding adev_to_drm() into its own
patch (previous commit), making this patch
more succinct and clear. More detailed commit
description.
Signed-off-by: Luben Tuikov <luben.tuikov at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 10 ++---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 +++-----
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 43 ++++++++++++++--------
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 20 +++-------
4 files changed, 43 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 735480cc7dcf..107a6ec920f7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -724,8 +724,8 @@ struct amd_powerplay {
#define AMDGPU_MAX_DF_PERFMONS 4
struct amdgpu_device {
struct device *dev;
- struct drm_device *ddev;
struct pci_dev *pdev;
+ struct drm_device ddev;
#ifdef CONFIG_DRM_AMD_ACP
struct amdgpu_acp acp;
@@ -990,12 +990,12 @@ struct amdgpu_device {
static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
{
- return ddev->dev_private;
+ return container_of(ddev, struct amdgpu_device, ddev);
}
static inline struct drm_device *adev_to_drm(struct amdgpu_device *adev)
{
- return adev->ddev;
+ return &adev->ddev;
}
static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev)
@@ -1004,8 +1004,6 @@ static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev)
}
int amdgpu_device_init(struct amdgpu_device *adev,
- struct drm_device *ddev,
- struct pci_dev *pdev,
uint32_t flags);
void amdgpu_device_fini(struct amdgpu_device *adev);
int amdgpu_gpu_wait_for_idle(struct amdgpu_device *adev);
@@ -1195,7 +1193,7 @@ static inline void *amdgpu_atpx_get_dhandle(void) { return NULL; }
extern const struct drm_ioctl_desc amdgpu_ioctls_kms[];
extern const int amdgpu_max_kms_ioctl;
-int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags);
+int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags);
void amdgpu_driver_unload_kms(struct drm_device *dev);
void amdgpu_driver_lastclose_kms(struct drm_device *dev);
int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 07012d71eeea..6e529548e708 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1216,7 +1216,8 @@ static int amdgpu_device_check_arguments(struct amdgpu_device *adev)
* Callback for the switcheroo driver. Suspends or resumes the
* the asics before or after it is powered up using ACPI methods.
*/
-static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
+static void amdgpu_switcheroo_set_state(struct pci_dev *pdev,
+ enum vga_switcheroo_state state)
{
struct drm_device *dev = pci_get_drvdata(pdev);
int r;
@@ -2977,8 +2978,6 @@ static const struct attribute *amdgpu_dev_attributes[] = {
* amdgpu_device_init - initialize the driver
*
* @adev: amdgpu_device pointer
- * @ddev: drm dev pointer
- * @pdev: pci dev pointer
* @flags: driver flags
*
* Initializes the driver info and hw (all asics).
@@ -2986,18 +2985,15 @@ static const struct attribute *amdgpu_dev_attributes[] = {
* Called at driver startup.
*/
int amdgpu_device_init(struct amdgpu_device *adev,
- struct drm_device *ddev,
- struct pci_dev *pdev,
uint32_t flags)
{
+ struct drm_device *ddev = adev_to_drm(adev);
+ struct pci_dev *pdev = adev->pdev;
int r, i;
bool boco = false;
u32 max_MBps;
adev->shutdown = false;
- adev->dev = &pdev->dev;
- adev->ddev = ddev;
- adev->pdev = pdev;
adev->flags = flags;
if (amdgpu_force_asic_type >= 0 && amdgpu_force_asic_type < CHIP_LAST)
@@ -3451,9 +3447,8 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
struct drm_connector_list_iter iter;
int r;
- if (dev == NULL || dev->dev_private == NULL) {
+ if (!dev)
return -ENODEV;
- }
adev = drm_to_adev(dev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 38023c879db1..6866c515f00a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1082,7 +1082,7 @@ static struct drm_driver kms_driver;
static int amdgpu_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- struct drm_device *dev;
+ struct drm_device *ddev;
struct amdgpu_device *adev;
unsigned long flags = ent->driver_data;
int ret, retry = 0;
@@ -1138,36 +1138,42 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
if (ret)
return ret;
- dev = drm_dev_alloc(&kms_driver, &pdev->dev);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
+ adev = kzalloc(sizeof(*adev), GFP_KERNEL);
+ if (!adev)
+ return -ENOMEM;
+
+ adev->dev = &pdev->dev;
+ adev->pdev = pdev;
+ ddev = adev_to_drm(adev);
+ ret = drm_dev_init(ddev, &kms_driver, &pdev->dev);
+ if (ret)
+ goto err_free;
if (!supports_atomic)
- dev->driver_features &= ~DRIVER_ATOMIC;
+ ddev->driver_features &= ~DRIVER_ATOMIC;
ret = pci_enable_device(pdev);
if (ret)
goto err_free;
- dev->pdev = pdev;
+ ddev->pdev = pdev;
+ pci_set_drvdata(pdev, ddev);
- pci_set_drvdata(pdev, dev);
-
- ret = amdgpu_driver_load_kms(dev, ent->driver_data);
+ ret = amdgpu_driver_load_kms(adev, ent->driver_data);
if (ret)
goto err_pci;
retry_init:
- ret = drm_dev_register(dev, ent->driver_data);
+ ret = drm_dev_register(ddev, ent->driver_data);
if (ret == -EAGAIN && ++retry <= 3) {
DRM_INFO("retry init %d\n", retry);
/* Don't request EX mode too frequently which is attacking */
msleep(5000);
goto retry_init;
- } else if (ret)
+ } else if (ret) {
goto err_pci;
+ }
- adev = drm_to_adev(dev);
ret = amdgpu_debugfs_init(adev);
if (ret)
DRM_ERROR("Creating debugfs files failed (%d).\n", ret);
@@ -1177,7 +1183,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
err_pci:
pci_disable_device(pdev);
err_free:
- drm_dev_put(dev);
+ drm_dev_put(ddev);
return ret;
}
@@ -1197,6 +1203,14 @@ amdgpu_pci_remove(struct pci_dev *pdev)
drm_dev_put(dev);
}
+static void amdgpu_driver_release(struct drm_device *ddev)
+{
+ struct amdgpu_device *adev = drm_to_adev(ddev);
+
+ drm_dev_fini(ddev);
+ kfree(adev);
+}
+
static void
amdgpu_pci_shutdown(struct pci_dev *pdev)
{
@@ -1491,6 +1505,7 @@ static struct drm_driver kms_driver = {
.open = amdgpu_driver_open_kms,
.postclose = amdgpu_driver_postclose_kms,
.lastclose = amdgpu_driver_lastclose_kms,
+ .release = amdgpu_driver_release,
.irq_handler = amdgpu_irq_handler,
.ioctls = amdgpu_ioctls_kms,
.gem_free_object_unlocked = amdgpu_gem_object_free,
@@ -1525,8 +1540,6 @@ static struct pci_driver amdgpu_kms_pci_driver = {
.driver.pm = &amdgpu_pm_ops,
};
-
-
static int __init amdgpu_init(void)
{
int r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 47cd3558f9c7..f2a4fdcd542d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -86,7 +86,7 @@ void amdgpu_driver_unload_kms(struct drm_device *dev)
amdgpu_unregister_gpu_instance(adev);
if (adev->rmmio == NULL)
- goto done_free;
+ return;
if (adev->runpm) {
pm_runtime_get_sync(dev->dev);
@@ -96,10 +96,6 @@ void amdgpu_driver_unload_kms(struct drm_device *dev)
amdgpu_acpi_fini(adev);
amdgpu_device_fini(adev);
-
-done_free:
- kfree(adev);
- dev->dev_private = NULL;
}
void amdgpu_register_gpu_instance(struct amdgpu_device *adev)
@@ -130,22 +126,18 @@ void amdgpu_register_gpu_instance(struct amdgpu_device *adev)
/**
* amdgpu_driver_load_kms - Main load function for KMS.
*
- * @dev: drm dev pointer
+ * @adev: pointer to struct amdgpu_device
* @flags: device flags
*
* This is the main load function for KMS (all asics).
* Returns 0 on success, error on failure.
*/
-int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
+int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
{
- struct amdgpu_device *adev;
+ struct drm_device *dev;
int r, acpi_status;
- adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
- if (adev == NULL) {
- return -ENOMEM;
- }
- dev->dev_private = (void *)adev;
+ dev = adev_to_drm(adev);
if (amdgpu_has_atpx() &&
(amdgpu_is_atpx_hybrid() ||
@@ -160,7 +152,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
* properly initialize the GPU MC controller and permit
* VRAM allocation
*/
- r = amdgpu_device_init(adev, dev, dev->pdev, flags);
+ r = amdgpu_device_init(adev, flags);
if (r) {
dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
goto out;
--
2.28.0.215.g878e727637
More information about the amd-gfx
mailing list