diff options
| -rw-r--r-- | linux-core/drm_crtc.c | 520 | ||||
| -rw-r--r-- | linux-core/drm_crtc.h | 8 | ||||
| -rw-r--r-- | linux-core/drm_edid.c | 4 | ||||
| -rw-r--r-- | linux-core/drm_modes.c | 4 |
4 files changed, 498 insertions, 38 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c index 38d596ba..a099a6dc 100644 --- a/linux-core/drm_crtc.c +++ b/linux-core/drm_crtc.c @@ -1,9 +1,55 @@ +/* + * Copyright (c) 2006-2007 Intel Corporation + * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> + * + * DRM core CRTC related functions + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + * + * Authors: + * Keith Packard + * Eric Anholt <eric@anholt.net> + * Dave Airlie <airlied@linux.ie> + * Jesse Barnes <jesse.barnes@intel.com> + */ #include <linux/list.h> #include "drm.h" #include "drmP.h" #include "drm_crtc.h" -int drm_mode_idr_get(struct drm_device *dev, void *ptr) +/** + * drm_idr_get - allocate a new identifier + * @dev: DRM device + * @ptr: object pointer, used to generate unique ID + * + * LOCKING: + * Process context (either init or calling process). Must take DRM mode_config + * lock around IDR allocation. + * + * Create a unique identifier based on @ptr in @dev's identifier space. Used + * for tracking modes, CRTCs and outputs. + * + * RETURNS: + * New unique (relative to other objects in @dev) integer identifier for the + * object. + */ +int drm_idr_get(struct drm_device *dev, void *ptr) { int new_id = 0; int ret; @@ -25,11 +71,34 @@ again: return new_id; } -void drm_mode_idr_put(struct drm_device *dev, int id) +/** + * drm_idr_put - free an identifer + * @dev: DRM device + * @id: ID to free + * + * LOCKING: + * Caller must hold DRM mode_config lock. + * + * Free @id from @dev's unique identifier pool. + */ +void drm_idr_put(struct drm_device *dev, int id) { idr_remove(&dev->mode_config.crtc_idr, id); } +/** + * drm_framebuffer_create - create a new framebuffer object + * @dev: DRM device + * + * LOCKING: + * Process context (either init or calling process). Must take DRM mode_config + * lock around mode_config manipulation. + * + * Creates a new framebuffer objects and adds it to @dev's DRM mode_config. + * + * RETURNS: + * Pointer to new framebuffer or NULL on error. + */ struct drm_framebuffer *drm_framebuffer_create(drm_device_t *dev) { struct drm_framebuffer *fb; @@ -49,7 +118,7 @@ struct drm_framebuffer *drm_framebuffer_create(drm_device_t *dev) return NULL; } - fb->id = drm_mode_idr_get(dev, fb); + fb->id = drm_idr_get(dev, fb); fb->dev = dev; spin_lock(&dev->mode_config.config_lock); dev->mode_config.num_fb++; @@ -60,21 +129,30 @@ struct drm_framebuffer *drm_framebuffer_create(drm_device_t *dev) } EXPORT_SYMBOL(drm_framebuffer_create); +/** + * drm_framebuffer_destroy - remove a framebuffer object + * @fb: framebuffer to remove + * + * LOCKING: + * Process context (either init or calling process). Must take DRM mode_config + * lock around mode_config manipulation. + * + * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes + * it, setting it to NULL. + */ void drm_framebuffer_destroy(struct drm_framebuffer *fb) { drm_device_t *dev = fb->dev; + struct drm_crtc *crtc; /* remove from any CRTC */ - { - struct drm_crtc *crtc; - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - if (crtc->fb == fb) - crtc->fb = NULL; - } + spin_lock(&dev->mode_config.config_lock); + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + if (crtc->fb == fb) + crtc->fb = NULL; } - spin_lock(&dev->mode_config.config_lock); - drm_mode_idr_put(dev, fb->id); + drm_idr_put(dev, fb->id); list_del(&fb->head); dev->mode_config.num_fb--; spin_unlock(&dev->mode_config.config_lock); @@ -82,6 +160,20 @@ void drm_framebuffer_destroy(struct drm_framebuffer *fb) kfree(fb); } +/** + * drm_crtc_create - create a new CRTC object + * @dev: DRM device + * @funcs: callbacks for the new CRTC + * + * LOCKING: + * Process context (either init or calling process). Must take DRM mode_config + * lock around mode_config manipulation. + * + * Creates a new CRTC object and adds it to @dev's mode_config structure. + * + * RETURNS: + * Pointer to new CRTC object or NULL on error. + */ struct drm_crtc *drm_crtc_create(drm_device_t *dev, const struct drm_crtc_funcs *funcs) { @@ -94,7 +186,7 @@ struct drm_crtc *drm_crtc_create(drm_device_t *dev, crtc->dev = dev; crtc->funcs = funcs; - crtc->id = drm_mode_idr_get(dev, crtc); + crtc->id = drm_idr_get(dev, crtc); spin_lock(&dev->mode_config.config_lock); list_add_tail(&crtc->head, &dev->mode_config.crtc_list); @@ -105,6 +197,17 @@ struct drm_crtc *drm_crtc_create(drm_device_t *dev, } EXPORT_SYMBOL(drm_crtc_create); +/** + * drm_crtc_destroy - remove a CRTC object + * @crtc: CRTC to remove + * + * LOCKING: + * Process context (either init or calling process). Must take DRM mode_config + * lock around mode_config traversal. + * + * Cleanup @crtc. Calls @crtc's cleanup function, then removes @crtc from + * its associated DRM device's mode_config. Frees it afterwards. + */ void drm_crtc_destroy(struct drm_crtc *crtc) { drm_device_t *dev = crtc->dev; @@ -112,9 +215,8 @@ void drm_crtc_destroy(struct drm_crtc *crtc) if (crtc->funcs->cleanup) (*crtc->funcs->cleanup)(crtc); - spin_lock(&dev->mode_config.config_lock); - drm_mode_idr_put(dev, crtc->id); + drm_idr_put(dev, crtc->id); list_del(&crtc->head); dev->mode_config.num_crtc--; spin_unlock(&dev->mode_config.config_lock); @@ -122,6 +224,18 @@ void drm_crtc_destroy(struct drm_crtc *crtc) } EXPORT_SYMBOL(drm_crtc_destroy); +/** + * drm_crtc_in_use - check if a given CRTC is in a mode_config + * @crtc: CRTC to check + * + * LOCKING: + * Caller? (FIXME) + * + * Walk @crtc's DRM device's mode_config and see if it's in use. + * + * RETURNS: + * True if @crtc is part of the mode_config, false otherwise. + */ bool drm_crtc_in_use(struct drm_crtc *crtc) { struct drm_output *output; @@ -143,6 +257,25 @@ static struct drm_display_mode std_mode[] = { V_NHSYNC | V_NVSYNC) }, /* 640x480@60Hz */ }; +/** + * drm_crtc_probe_output_modes - get complete set of display modes + * @dev: DRM device + * @maxX: max width for modes + * @maxY: max height for modes + * + * LOCKING: + * Caller? (FIXME) + * + * Based on @dev's mode_config layout, scan all the outputs and try to detect + * modes on them. Modes will first be added to the output's probed_modes + * list, then culled (based on validity and the @maxX, @maxY parameters) and + * put into the normal modes list. + * + * Intended to be used either at bootup time or when major configuration + * changes have occurred. + * + * FIXME: take into account monitor limits + */ void drm_crtc_probe_output_modes(struct drm_device *dev, int maxX, int maxY) { struct drm_output *output; @@ -186,7 +319,7 @@ void drm_crtc_probe_output_modes(struct drm_device *dev, int maxX, int maxY) if (list_empty(&output->modes)) { struct drm_display_mode *stdmode; - DRM_DEBUG("No valid modes found on %s\n", output->name); + DRM_DEBUG("No valid modes on %s\n", output->name); /* Should we do this here ??? * When no valid EDID modes are available we end up @@ -214,6 +347,22 @@ void drm_crtc_probe_output_modes(struct drm_device *dev, int maxX, int maxY) } } +/** + * drm_crtc_set_mode - set a mode + * @crtc: CRTC to program + * @mode: mode to use + * @x: width of mode + * @y: height of mode + * + * LOCKING: + * Caller? (FIXME) + * + * Try to set @mode on @crtc. Give @crtc and its associated outputs a chance + * to fixup or reject the mode prior to trying to set it. + * + * RETURNS: + * True if the mode was set successfully, or false otherwise. + */ bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, int x, int y) { @@ -299,7 +448,7 @@ bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, } /* XXX free adjustedmode */ - drm_crtc_mode_destroy(dev, adjusted_mode); + drm_mode_destroy(dev, adjusted_mode); ret = TRUE; /* TODO */ // if (scrn->pScreen) @@ -318,6 +467,20 @@ done: return ret; } +/** + * drm_set_desired_modes - set a good mode on every CRTC & output + * @dev: DRM device + * + * LOCKING: + * Caller? (FIXME) + * + * Each CRTC may have a desired mode associated with it. This routine simply + * walks @dev's mode_config and sets the desired mode on every CRTC. Intended + * for use at startup time. + * + * RETURNS: + * True if modes were set, false otherwise. + */ bool drm_set_desired_modes(struct drm_device *dev) { struct drm_crtc *crtc; @@ -326,7 +489,8 @@ bool drm_set_desired_modes(struct drm_device *dev) list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { output = NULL; - list_for_each_entry(list_output, &dev->mode_config.output_list, head) { + list_for_each_entry(list_output, &dev->mode_config.output_list, + head) { if (list_output->crtc == crtc) { output = list_output; break; @@ -348,6 +512,16 @@ bool drm_set_desired_modes(struct drm_device *dev) } EXPORT_SYMBOL(drm_set_desired_modes); +/** + * drm_disable_unused_functions - disable unused objects + * @dev: DRM device + * + * LOCKING: + * Caller? (FIXME) + * + * If an output or CRTC isn't part of @dev's mode_config, it can be disabled + * by calling its dpms function, which should power it off. + */ void drm_disable_unused_functions(struct drm_device *dev) { struct drm_output *output; @@ -369,9 +543,14 @@ void drm_disable_unused_functions(struct drm_device *dev) * @output: output the new mode * @mode: mode data * + * LOCKING: + * Process context (either init or calling process). Must take @output's + * mode_lock around mode list manipulation. + * * Add @mode to @output's mode list for later use. */ -void drm_mode_probed_add(struct drm_output *output, struct drm_display_mode *mode) +void drm_mode_probed_add(struct drm_output *output, + struct drm_display_mode *mode) { spin_lock(&output->modes_lock); list_add(&mode->head, &output->probed_modes); @@ -384,6 +563,10 @@ EXPORT_SYMBOL(drm_mode_probed_add); * @output: output list to modify * @mode: mode to remove * + * LOCKING: + * Process context (either init or calling process). Must take @output's + * mode_lock around mode list manipulation. + * * Remove @mode from @output's mode list, then free it. */ void drm_mode_remove(struct drm_output *output, struct drm_display_mode *mode) @@ -395,8 +578,21 @@ void drm_mode_remove(struct drm_output *output, struct drm_display_mode *mode) } EXPORT_SYMBOL(drm_mode_remove); -/* - * Probably belongs in the DRM device structure +/** + * drm_output_create - create a new output + * @dev: DRM device + * @funcs: callbacks for this output + * @name: user visible name of the output + * + * LOCKING: + * Process context (either init or calling process). Must take @dev's + * mode_config lock around mode list manipulation. + * + * Creates a new drm_output structure and adds it to @dev's mode_config + * structure. + * + * RETURNS: + * Pointer to the new output or NULL on error. */ struct drm_output *drm_output_create(drm_device_t *dev, const struct drm_output_funcs *funcs, @@ -410,7 +606,7 @@ struct drm_output *drm_output_create(drm_device_t *dev, output->dev = dev; output->funcs = funcs; - output->id = drm_mode_idr_get(dev, output); + output->id = drm_idr_get(dev, output); if (name) strncpy(output->name, name, DRM_OUTPUT_LEN); output->name[DRM_OUTPUT_LEN - 1] = 0; @@ -433,6 +629,18 @@ struct drm_output *drm_output_create(drm_device_t *dev, } EXPORT_SYMBOL(drm_output_create); +/** + * drm_output_destroy - remove an output + * @output: output to remove + * + * LOCKING: + * Process context (either init or calling process). Must take @dev's + * mode_config lock around mode list manipulation. Caller must hold + * modes lock? (FIXME) + * + * Call @output's cleanup function, then remove the output from the DRM + * mode_config after freeing @output's modes. + */ void drm_output_destroy(struct drm_output *output) { struct drm_device *dev = output->dev; @@ -448,13 +656,26 @@ void drm_output_destroy(struct drm_output *output) drm_mode_remove(output, mode); spin_lock(&dev->mode_config.config_lock); - drm_mode_idr_put(dev, output->id); + drm_idr_put(dev, output->id); list_del(&output->head); spin_unlock(&dev->mode_config.config_lock); kfree(output); } EXPORT_SYMBOL(drm_output_destroy); +/** + * drm_output_rename - rename an output + * @output: output to rename + * @name: new user visible name + * + * LOCKING: + * None. + * + * Simply stuff a new name into @output's name field, based on @name. + * + * RETURNS: + * True if the name was changed, false otherwise. + */ bool drm_output_rename(struct drm_output *output, const char *name) { if (!name) @@ -472,7 +693,19 @@ bool drm_output_rename(struct drm_output *output, const char *name) } EXPORT_SYMBOL(drm_output_rename); -struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev) +/** + * drm_mode_create - create a new display mode + * @dev: DRM device + * + * LOCKING: + * None. + * + * Create a new drm_display_mode, give it an ID, and return it. + * + * RETURNS: + * Pointer to new mode on success, NULL on error. + */ +struct drm_display_mode *drm_mode_create(struct drm_device *dev) { struct drm_display_mode *nmode; @@ -480,17 +713,37 @@ struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev) if (!nmode) return NULL; - nmode->mode_id = drm_mode_idr_get(dev, nmode); + nmode->mode_id = drm_idr_get(dev, nmode); return nmode; } -void drm_crtc_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) +/** + * drm_mode_destroy - remove a mode + * @dev: DRM device + * @mode: mode to remove + * + * LOCKING: + * None. + * + * Free @mode's unique identifier, then free it. + */ +void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) { - drm_mode_idr_put(dev, mode->mode_id); + drm_idr_put(dev, mode->mode_id); kfree(mode); } +/** + * drm_mode_config_init - initialize DRM mode_configuration structure + * @dev: DRM device + * + * LOCKING: + * None, should happen single threaded at init time. + * + * Initialize @dev's mode_config structure, used for tracking the graphics + * configuration of @dev. + */ void drm_mode_config_init(drm_device_t *dev) { spin_lock_init(&dev->mode_config.config_lock); @@ -501,6 +754,21 @@ void drm_mode_config_init(drm_device_t *dev) } EXPORT_SYMBOL(drm_mode_config_init); +/** + * drm_get_buffer_object - find the buffer object for a given handle + * @dev: DRM device + * @bo: pointer to caller's buffer_object pointer + * @handle: handle to lookup + * + * LOCKING: + * Must take @dev's struct_mutex to protect buffer object lookup. + * + * Given @handle, lookup the buffer object in @dev and put it in the caller's + * @bo pointer. + * + * RETURNS: + * Zero on success, -EINVAL if the handle couldn't be found. + */ static int drm_get_buffer_object(drm_device_t *dev, struct drm_buffer_object **bo, unsigned long handle) { drm_user_object_t *uo; @@ -530,6 +798,18 @@ out_err: return ret; } +/** + * drm_setup_output - setup an output structure + * @output: output to setup + * @crtc: CRTC this output belongs to + * @mode: desired mode for this output + * + * LOCKING: + * None. + * + * Setup @output with the parameters given, with its initial coordinates set + * at the origin. + */ static void drm_setup_output(struct drm_output *output, struct drm_crtc *crtc, struct drm_display_mode *mode) { @@ -542,12 +822,19 @@ static void drm_setup_output(struct drm_output *output, struct drm_crtc *crtc, /** * drm_initial_config - setup a sane initial output configuration * @dev: DRM device - * @fb: framebuffer backing for new setup * @can_grow: this configuration is growable * + * LOCKING: + * Must take various locks. (FIXME) + * * Scan the CRTCs and outputs and try to put together an initial setup. * At the moment, this is a cloned configuration across all heads with - * @fb as the backing store. + * a new framebuffer object as the backing store. + * + * FIXME: return value and better initial config. + * + * RETURNS: + * Zero if everything went ok, nonzero otherwise. */ bool drm_initial_config(drm_device_t *dev, bool can_grow) { @@ -652,6 +939,18 @@ bool drm_initial_config(drm_device_t *dev, bool can_grow) } EXPORT_SYMBOL(drm_initial_config); +/** + * drm_mode_config_cleanup - free up DRM mode_config info + * @dev: DRM device + * + * LOCKING: + * Caller? (FIXME) + * + * Free up all the outputs and CRTCs associated with this DRM device, then + * free up the framebuffers and associated buffer objects. + * + * FIXME: cleanup any dangling user buffer objects too + */ void drm_mode_config_cleanup(drm_device_t *dev) { struct drm_output *output, *ot; @@ -678,6 +977,23 @@ void drm_mode_config_cleanup(drm_device_t *dev) } EXPORT_SYMBOL(drm_mode_config_cleanup); +/** + * drm_crtc_set_config - set a new config from userspace + * @crtc: CRTC to setup + * @crtc_info: user provided configuration + * @new_mode: new mode to set + * @output_set: set of outputs for the new config + * @fb: new framebuffer + * + * LOCKING: + * Caller? (FIXME) + * + * Setup a new configuration, provided by the user in @crtc_info, and enable + * it. + * + * RETURNS: + * Zero. (FIXME) + */ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info, struct drm_display_mode *new_mode, struct drm_output **output_set, struct drm_framebuffer *fb) { drm_device_t *dev = crtc->dev; @@ -743,6 +1059,17 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info, return 0; } +/** + * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo + * @out: drm_mode_modeinfo struct to return to the user + * @in: drm_display_mode to use + * + * LOCKING: + * None. + * + * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to + * the user. + */ void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, struct drm_display_mode *in) { @@ -765,7 +1092,24 @@ void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, struct drm_display } -/* IOCTL code from userspace */ +/** + * drm_mode_getresources - get graphics configuration + * @inode: inode from the ioctl + * @filp: file * from the ioctl + * @cmd: cmd from ioctl + * @arg: arg from ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Construct a set of configuration description structures and return + * them to the user, including CRTC, output and framebuffer configuration. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ int drm_mode_getresources(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -882,6 +1226,23 @@ done: return retcode; } +/** + * drm_mode_getcrtc - get CRTC configuration + * @inode: inode from the ioctl + * @filp: file * from the ioctl + * @cmd: cmd from ioctl + * @arg: arg from ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Construct a CRTC configuration structure to return to the user. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ int drm_mode_getcrtc(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -923,6 +1284,23 @@ int drm_mode_getcrtc(struct inode *inode, struct file *filp, return retcode; } +/** + * drm_mode_getoutput - get output configuration + * @inode: inode from the ioctl + * @filp: file * from the ioctl + * @cmd: cmd from ioctl + * @arg: arg from ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Construct a output configuration structure to return to the user. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ int drm_mode_getoutput(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -977,7 +1355,23 @@ done: return retcode; } - +/** + * drm_mode_setcrtc - set CRTC configuration + * @inode: inode from the ioctl + * @filp: file * from the ioctl + * @cmd: cmd from ioctl + * @arg: arg from ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Build a new CRTC configuration based on user request. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ int drm_mode_setcrtc(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -1061,7 +1455,23 @@ int drm_mode_setcrtc(struct inode *inode, struct file *filp, return retcode; } -/* Add framebuffer ioctl */ +/** + * drm_mode_addfb - add an FB to the graphics configuration + * @inode: inode from the ioctl + * @filp: file * from the ioctl + * @cmd: cmd from ioctl + * @arg: arg from ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Add a new FB to the specified CRTC, given a user request. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ int drm_mode_addfb(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -1123,6 +1533,23 @@ int drm_mode_addfb(struct inode *inode, struct file *filp, return 0; } +/** + * drm_mode_rmfb - remove an FB from the configuration + * @inode: inode from the ioctl + * @filp: file * from the ioctl + * @cmd: cmd from ioctl + * @arg: arg from ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Remove the FB specified by the user. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ int drm_mode_rmfb(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -1149,6 +1576,23 @@ int drm_mode_rmfb(struct inode *inode, struct file *filp, return 0; } +/** + * drm_mode_getfb - get FB info + * @inode: inode from the ioctl + * @filp: file * from the ioctl + * @cmd: cmd from ioctl + * @arg: arg from ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Lookup the FB given its ID and return info about it. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ int drm_mode_getfb(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -1180,6 +1624,20 @@ int drm_mode_getfb(struct inode *inode, struct file *filp, return 0; } +/** + * drm_fb_release - remove and free the FBs on this file + * @filp: file * from the ioctl + * + * LOCKING: + * Caller? (FIXME) + * + * Destroy all the FBs associated with @filp. + * + * Called by the user via ioctl. + * + * RETURNS: + * Zero on success, errno on failure. + */ void drm_fb_release(struct file *filp) { drm_file_t *priv = filp->private_data; diff --git a/linux-core/drm_crtc.h b/linux-core/drm_crtc.h index f8d7da26..7128afe1 100644 --- a/linux-core/drm_crtc.h +++ b/linux-core/drm_crtc.h @@ -361,7 +361,7 @@ struct drm_output { unsigned long possible_clones; bool interlace_allowed; bool doublescan_allowed; - spinlock_t modes_lock; + spinlock_t modes_lock; /* protects modes and probed_modes lists */ struct list_head modes; /* list of modes on this output */ /* OptionInfoPtr options; @@ -401,7 +401,7 @@ struct drm_mode_config_funcs { * */ struct drm_mode_config { - spinlock_t config_lock; + spinlock_t config_lock; /* protects configuration and IDR */ struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, output, modes - just makes life easier */ /* this is limited to one for now */ int num_fb; @@ -439,8 +439,8 @@ extern void drm_mode_config_init(struct drm_device *dev); extern void drm_mode_config_cleanup(struct drm_device *dev); extern void drm_disable_unused_functions(struct drm_device *dev); -extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev); -extern void drm_crtc_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); +extern struct drm_display_mode *drm_mode_create(struct drm_device *dev); +extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); extern void drm_mode_list_concat(struct list_head *head, struct list_head *new); extern void drm_mode_validate_size(struct drm_device *dev, diff --git a/linux-core/drm_edid.c b/linux-core/drm_edid.c index 9acdc8da..a9cf23a1 100644 --- a/linux-core/drm_edid.c +++ b/linux-core/drm_edid.c @@ -66,7 +66,7 @@ struct drm_display_mode *drm_mode_std(struct drm_device *dev, struct drm_display_mode *mode; int hsize = t->hsize * 8 + 248, vsize; - mode = drm_crtc_mode_create(dev); + mode = drm_mode_create(dev); if (!mode) return NULL; @@ -109,7 +109,7 @@ struct drm_display_mode *drm_mode_detailed(drm_device_t *dev, return NULL; } - mode = drm_crtc_mode_create(dev); + mode = drm_mode_create(dev); if (!mode) return NULL; diff --git a/linux-core/drm_modes.c b/linux-core/drm_modes.c index df34fc27..7d976d9f 100644 --- a/linux-core/drm_modes.c +++ b/linux-core/drm_modes.c @@ -152,7 +152,7 @@ struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, struct drm_display_mode *nmode; int new_id; - nmode = drm_crtc_mode_create(dev); + nmode = drm_mode_create(dev); if (!nmode) return NULL; @@ -184,6 +184,7 @@ bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mod } EXPORT_SYMBOL(drm_mode_equal); +/* caller must hold modes lock */ void drm_mode_validate_size(struct drm_device *dev, struct list_head *mode_list, int maxX, int maxY, int maxPitch) @@ -224,6 +225,7 @@ void drm_mode_validate_clocks(struct drm_device *dev, } EXPORT_SYMBOL(drm_mode_validate_clocks); +/* caller must hold modes lock */ void drm_mode_prune_invalid(struct drm_device *dev, struct list_head *mode_list, bool verbose) { |