xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm: Add support for platform devices to register as DRM devices

Browse Source 
Allow platform devices without PCI resources to be DRM devices.

[airlied: fixup warnings with dev pointers]

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jordan Crouse
2010-05-27 13:40:25 -06:00
committed by Dave Airlie
parent 01d73a6967
commit dcdb167402
17 changed files with 401 additions and 171 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
include/drm/drmP.h
View File

@@ -9,6 +9,7 @@
/*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* Copyright (c) 2009-2010, Code Aurora Forum.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -48,6 +49,7 @@
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/file.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/jiffies.h>
#include <linux/smp_lock.h> /* For (un)lock_kernel */
@@ -144,6 +146,7 @@ extern void drm_ut_debug_printk(unsigned int request_level,
#define DRIVER_IRQ_VBL2 0x800
#define DRIVER_GEM 0x1000
#define DRIVER_MODESET 0x2000
#define DRIVER_USE_PLATFORM_DEVICE 0x4000
/***********************************************************************/
/** \name Begin the DRM... */
@@ -823,6 +826,7 @@ struct drm_driver {
int num_ioctls;
struct file_operations fops;
struct pci_driver pci_driver;
struct platform_device *platform_device;
/* List of devices hanging off this driver */
struct list_head device_list;
};
@@ -1015,12 +1019,16 @@ struct drm_device {
struct drm_agp_head *agp; /**< AGP data */
struct device *dev; /**< Device structure */
struct pci_dev *pdev; /**< PCI device structure */
int pci_vendor; /**< PCI vendor id */
int pci_device; /**< PCI device id */
#ifdef __alpha__
struct pci_controller *hose;
#endif
struct platform_device *platformdev; /**< Platform device struture */
struct drm_sg_mem *sg; /**< Scatter gather memory */
int num_crtcs; /**< Number of CRTCs on this device */
void *dev_private; /**< device private data */
@@ -1060,17 +1068,21 @@ struct drm_device {
};
static inline int drm_dev_to_irq(struct drm_device *dev)
{
return dev->pdev->irq;
}
static __inline__ int drm_core_check_feature(struct drm_device *dev,
int feature)
{
return ((dev->driver->driver_features & feature) ? 1 : 0);
}
static inline int drm_dev_to_irq(struct drm_device *dev)
{
if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
return platform_get_irq(dev->platformdev, 0);
else
return dev->pdev->irq;
}
#ifdef __alpha__
#define drm_get_pci_domain(dev) dev->hose->index
#else
@@ -1347,8 +1359,11 @@ extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
struct drm_master *drm_master_create(struct drm_minor *minor);
extern struct drm_master *drm_master_get(struct drm_master *master);
extern void drm_master_put(struct drm_master **master);
extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
struct drm_driver *driver);
extern int drm_get_pci_dev(struct pci_dev *pdev,
const struct pci_device_id *ent,
struct drm_driver *driver);
extern int drm_get_platform_dev(struct platform_device *pdev,
struct drm_driver *driver);
extern void drm_put_dev(struct drm_device *dev);
extern int drm_put_minor(struct drm_minor **minor);
extern unsigned int drm_debug;
@@ -1525,6 +1540,9 @@ static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
static __inline__ int drm_device_is_agp(struct drm_device *dev)
{
if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
return 0;
if (dev->driver->device_is_agp != NULL) {
int err = (*dev->driver->device_is_agp) (dev);
@@ -1538,7 +1556,10 @@ static __inline__ int drm_device_is_agp(struct drm_device *dev)
static __inline__ int drm_device_is_pcie(struct drm_device *dev)
{
return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
return 0;
else
return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
}
static __inline__ void drm_core_dropmap(struct drm_local_map *map)
@@ -1546,6 +1567,21 @@ static __inline__ void drm_core_dropmap(struct drm_local_map *map)
}
#include "drm_mem_util.h"
static inline void *drm_get_device(struct drm_device *dev)
{
if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
return dev->platformdev;
else
return dev->pdev;
}
extern int drm_platform_init(struct drm_driver *driver);
extern int drm_pci_init(struct drm_driver *driver);
extern int drm_fill_in_dev(struct drm_device *dev,
const struct pci_device_id *ent,
struct drm_driver *driver);
int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
/*@}*/
#endif /* __KERNEL__ */