diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_kms.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 173 |
1 files changed, 164 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 5c58d7d90cb2..414b4acf6947 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -29,10 +29,22 @@ #include "drm_sarea.h" #include "radeon.h" #include "radeon_drm.h" +#include "radeon_asic.h" #include <linux/vga_switcheroo.h> #include <linux/slab.h> +/** + * radeon_driver_unload_kms - Main unload function for KMS. + * + * @dev: drm dev pointer + * + * This is the main unload function for KMS (all asics). + * It calls radeon_modeset_fini() to tear down the + * displays, and radeon_device_fini() to tear down + * the rest of the device (CP, writeback, etc.). + * Returns 0 on success. + */ int radeon_driver_unload_kms(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; @@ -46,6 +58,19 @@ int radeon_driver_unload_kms(struct drm_device *dev) return 0; } +/** + * radeon_driver_load_kms - Main load function for KMS. + * + * @dev: drm dev pointer + * @flags: device flags + * + * This is the main load function for KMS (all asics). + * It calls radeon_device_init() to set up the non-display + * parts of the chip (asic init, CP, writeback, etc.), and + * radeon_modeset_init() to set up the display parts + * (crtcs, encoders, hotplug detect, etc.). + * Returns 0 on success, error on failure. + */ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags) { struct radeon_device *rdev; @@ -96,6 +121,16 @@ out: return r; } +/** + * radeon_set_filp_rights - Set filp right. + * + * @dev: drm dev pointer + * @owner: drm file + * @applier: drm file + * @value: value + * + * Sets the filp rights for the device (all asics). + */ static void radeon_set_filp_rights(struct drm_device *dev, struct drm_file **owner, struct drm_file *applier, @@ -118,20 +153,54 @@ static void radeon_set_filp_rights(struct drm_device *dev, /* * Userspace get information ioctl */ +/** + * radeon_info_ioctl - answer a device specific request. + * + * @rdev: radeon device pointer + * @data: request object + * @filp: drm filp + * + * This function is used to pass device specific parameters to the userspace + * drivers. Examples include: pci device id, pipeline parms, tiling params, + * etc. (all asics). + * Returns 0 on success, -EINVAL on failure. + */ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { struct radeon_device *rdev = dev->dev_private; - struct drm_radeon_info *info; + struct drm_radeon_info *info = data; struct radeon_mode_info *minfo = &rdev->mode_info; - uint32_t *value_ptr; - uint32_t value; + uint32_t value, *value_ptr; + uint64_t value64, *value_ptr64; struct drm_crtc *crtc; int i, found; - info = data; + /* TIMESTAMP is a 64-bit value, needs special handling. */ + if (info->request == RADEON_INFO_TIMESTAMP) { + if (rdev->family >= CHIP_R600) { + value_ptr64 = (uint64_t*)((unsigned long)info->value); + if (rdev->family >= CHIP_TAHITI) { + value64 = si_get_gpu_clock(rdev); + } else { + value64 = r600_get_gpu_clock(rdev); + } + + if (DRM_COPY_TO_USER(value_ptr64, &value64, sizeof(value64))) { + DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__); + return -EFAULT; + } + return 0; + } else { + DRM_DEBUG_KMS("timestamp is r6xx+ only!\n"); + return -EINVAL; + } + } + value_ptr = (uint32_t *)((unsigned long)info->value); - if (DRM_COPY_FROM_USER(&value, value_ptr, sizeof(value))) + if (DRM_COPY_FROM_USER(&value, value_ptr, sizeof(value))) { + DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__); return -EFAULT; + } switch (info->request) { case RADEON_INFO_DEVICE_ID: @@ -291,7 +360,7 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return -EINVAL; } if (DRM_COPY_TO_USER(value_ptr, &value, sizeof(uint32_t))) { - DRM_ERROR("copy_to_user\n"); + DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__); return -EFAULT; } return 0; @@ -301,16 +370,40 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) /* * Outdated mess for old drm with Xorg being in charge (void function now). */ +/** + * radeon_driver_firstopen_kms - drm callback for first open + * + * @dev: drm dev pointer + * + * Nothing to be done for KMS (all asics). + * Returns 0 on success. + */ int radeon_driver_firstopen_kms(struct drm_device *dev) { return 0; } +/** + * radeon_driver_firstopen_kms - drm callback for last close + * + * @dev: drm dev pointer + * + * Switch vga switcheroo state after last close (all asics). + */ void radeon_driver_lastclose_kms(struct drm_device *dev) { vga_switcheroo_process_delayed_switch(); } +/** + * radeon_driver_open_kms - drm callback for open + * + * @dev: drm dev pointer + * @file_priv: drm file + * + * On device open, init vm on cayman+ (all asics). + * Returns 0 on success, error on failure. + */ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) { struct radeon_device *rdev = dev->dev_private; @@ -339,6 +432,14 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) return 0; } +/** + * radeon_driver_postclose_kms - drm callback for post close + * + * @dev: drm dev pointer + * @file_priv: drm file + * + * On device post close, tear down vm on cayman+ (all asics). + */ void radeon_driver_postclose_kms(struct drm_device *dev, struct drm_file *file_priv) { @@ -354,6 +455,15 @@ void radeon_driver_postclose_kms(struct drm_device *dev, } } +/** + * radeon_driver_preclose_kms - drm callback for pre close + * + * @dev: drm dev pointer + * @file_priv: drm file + * + * On device pre close, tear down hyperz and cmask filps on r1xx-r5xx + * (all asics). + */ void radeon_driver_preclose_kms(struct drm_device *dev, struct drm_file *file_priv) { @@ -367,6 +477,15 @@ void radeon_driver_preclose_kms(struct drm_device *dev, /* * VBlank related functions. */ +/** + * radeon_get_vblank_counter_kms - get frame count + * + * @dev: drm dev pointer + * @crtc: crtc to get the frame count from + * + * Gets the frame count on the requested crtc (all asics). + * Returns frame count on success, -EINVAL on failure. + */ u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc) { struct radeon_device *rdev = dev->dev_private; @@ -379,34 +498,70 @@ u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc) return radeon_get_vblank_counter(rdev, crtc); } +/** + * radeon_enable_vblank_kms - enable vblank interrupt + * + * @dev: drm dev pointer + * @crtc: crtc to enable vblank interrupt for + * + * Enable the interrupt on the requested crtc (all asics). + * Returns 0 on success, -EINVAL on failure. + */ int radeon_enable_vblank_kms(struct drm_device *dev, int crtc) { struct radeon_device *rdev = dev->dev_private; + unsigned long irqflags; + int r; if (crtc < 0 || crtc >= rdev->num_crtc) { DRM_ERROR("Invalid crtc %d\n", crtc); return -EINVAL; } + spin_lock_irqsave(&rdev->irq.lock, irqflags); rdev->irq.crtc_vblank_int[crtc] = true; - - return radeon_irq_set(rdev); + r = radeon_irq_set(rdev); + spin_unlock_irqrestore(&rdev->irq.lock, irqflags); + return r; } +/** + * radeon_disable_vblank_kms - disable vblank interrupt + * + * @dev: drm dev pointer + * @crtc: crtc to disable vblank interrupt for + * + * Disable the interrupt on the requested crtc (all asics). + */ void radeon_disable_vblank_kms(struct drm_device *dev, int crtc) { struct radeon_device *rdev = dev->dev_private; + unsigned long irqflags; if (crtc < 0 || crtc >= rdev->num_crtc) { DRM_ERROR("Invalid crtc %d\n", crtc); return; } + spin_lock_irqsave(&rdev->irq.lock, irqflags); rdev->irq.crtc_vblank_int[crtc] = false; - radeon_irq_set(rdev); + spin_unlock_irqrestore(&rdev->irq.lock, irqflags); } +/** + * radeon_get_vblank_timestamp_kms - get vblank timestamp + * + * @dev: drm dev pointer + * @crtc: crtc to get the timestamp for + * @max_error: max error + * @vblank_time: time value + * @flags: flags passed to the driver + * + * Gets the timestamp on the requested crtc based on the + * scanout position. (all asics). + * Returns postive status flags on success, negative error on failure. + */ int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc, int *max_error, struct timeval *vblank_time, |