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authorJesse Barnes <jbarnes@jbarnes-mobile.amr.corp.intel.com>2007-04-05 09:27:12 -0700
committerJesse Barnes <jbarnes@jbarnes-mobile.amr.corp.intel.com>2007-04-05 09:27:12 -0700
commit50ee722e018a5f17f886286e3d9eebe93f3cecaa (patch)
tree71ed50a3f809cdce839cdb46e3031c008a845775 /linux-core/drm_crtc.c
parent6f3534a13abb0c8afb157511d0871dbc35bc403d (diff)
parent652bbb77f6c9efb7e0a67cc868dfda42b00fc5fb (diff)
Merge branch 'modesetting-101' of git+ssh://git.freedesktop.org/git/mesa/drm into modesetting-101
Diffstat (limited to 'linux-core/drm_crtc.c')
-rw-r--r--linux-core/drm_crtc.c404
1 files changed, 392 insertions, 12 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c
index a52d82bc..8e03dd5f 100644
--- a/linux-core/drm_crtc.c
+++ b/linux-core/drm_crtc.c
@@ -3,6 +3,33 @@
#include "drm.h"
#include "drm_crtc.h"
+int drm_mode_idr_get(struct drm_device *dev, void *ptr)
+{
+ int new_id = 0;
+ int ret;
+again:
+ if (idr_pre_get(&dev->crtc_config.crtc_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Ran out memory getting a mode number\n");
+ return 0;
+ }
+
+ spin_lock(&dev->crtc_config.config_lock);
+
+ ret = idr_get_new_above(&dev->crtc_config.crtc_idr, ptr, 1, &new_id);
+ if (ret == -EAGAIN) {
+ spin_unlock(&dev->crtc_config.config_lock);
+ goto again;
+ }
+
+ spin_unlock(&dev->crtc_config.config_lock);
+ return new_id;
+}
+
+void drm_mode_idr_put(struct drm_device *dev, int id)
+{
+ idr_remove(&dev->crtc_config.crtc_idr, id);
+}
+
struct drm_framebuffer *drm_framebuffer_create(drm_device_t *dev)
{
struct drm_framebuffer *fb;
@@ -20,7 +47,8 @@ struct drm_framebuffer *drm_framebuffer_create(drm_device_t *dev)
return NULL;
}
-
+
+ fb->id = drm_mode_idr_get(dev, fb);
fb->dev = dev;
spin_lock(&dev->crtc_config.config_lock);
dev->crtc_config.num_fb++;
@@ -35,6 +63,7 @@ void drm_framebuffer_destroy(struct drm_framebuffer *fb)
drm_device_t *dev = fb->dev;
spin_lock(&dev->crtc_config.config_lock);
+ drm_mode_idr_put(dev, fb->id);
list_del(&fb->head);
dev->crtc_config.num_fb--;
spin_unlock(&dev->crtc_config.config_lock);
@@ -45,19 +74,21 @@ void drm_framebuffer_destroy(struct drm_framebuffer *fb)
struct drm_crtc *drm_crtc_create(drm_device_t *dev,
const struct drm_crtc_funcs *funcs)
{
- struct drm_crtc *crtc = NULL;
- crtc = kmalloc(sizeof(struct drm_crtc), GFP_KERNEL);
+ struct drm_crtc *crtc;
+
+ crtc = kzalloc(sizeof(struct drm_crtc), GFP_KERNEL);
if (!crtc)
return NULL;
crtc->dev = dev;
crtc->funcs = funcs;
- spin_lock(&dev->crtc_config.config_lock);
+ crtc->id = drm_mode_idr_get(dev, crtc);
+ DRM_DEBUG("crtc %p got id %d\n", crtc, crtc->id);
+ spin_lock(&dev->crtc_config.config_lock);
list_add_tail(&crtc->head, &dev->crtc_config.crtc_list);
dev->crtc_config.num_crtc++;
-
spin_unlock(&dev->crtc_config.config_lock);
return crtc;
@@ -71,7 +102,9 @@ void drm_crtc_destroy(struct drm_crtc *crtc)
if (crtc->funcs->cleanup)
(*crtc->funcs->cleanup)(crtc);
+
spin_lock(&dev->crtc_config.config_lock);
+ drm_mode_idr_put(dev, crtc->id);
list_del(&crtc->head);
dev->crtc_config.num_crtc--;
spin_unlock(&dev->crtc_config.config_lock);
@@ -154,7 +187,7 @@ bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
bool ret = false;
struct drm_output *output;
- adjusted_mode = drm_mode_duplicate(mode);
+ adjusted_mode = drm_mode_duplicate(dev, mode);
crtc->enabled = drm_crtc_in_use(crtc);
@@ -230,6 +263,7 @@ bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
}
/* XXX free adjustedmode */
+ drm_crtc_mode_destroy(dev, adjusted_mode);
ret = TRUE;
/* TODO */
// if (scrn->pScreen)
@@ -256,6 +290,7 @@ bool drm_set_desired_modes(struct drm_device *dev)
list_for_each_entry(crtc, &dev->crtc_config.crtc_list, head) {
output = NULL;
+ DRM_DEBUG("crtc is %d\n", crtc->id);
list_for_each_entry(list_output, &dev->crtc_config.output_list, head) {
if (list_output->crtc == crtc) {
output = list_output;
@@ -267,10 +302,10 @@ bool drm_set_desired_modes(struct drm_device *dev)
continue;
memset(&crtc->mode, 0, sizeof(crtc->mode));
- if (!crtc->desired_mode.crtc_hdisplay) {
+ if (!crtc->desired_mode->crtc_hdisplay) {
}
- if (!drm_crtc_set_mode(crtc, &crtc->desired_mode,
+ if (!drm_crtc_set_mode(crtc, crtc->desired_mode,
crtc->desired_x, crtc->desired_y))
return false;
}
@@ -344,6 +379,7 @@ struct drm_output *drm_output_create(drm_device_t *dev,
output->dev = dev;
output->funcs = funcs;
+ output->id = drm_mode_idr_get(dev, output);
if (name)
strncpy(output->name, name, DRM_OUTPUT_LEN);
output->name[DRM_OUTPUT_LEN - 1] = 0;
@@ -381,6 +417,7 @@ void drm_output_destroy(struct drm_output *output)
drm_mode_remove(output, mode);
spin_lock(&dev->crtc_config.config_lock);
+ drm_mode_idr_put(dev, output->id);
list_del(&output->head);
spin_unlock(&dev->crtc_config.config_lock);
kfree(output);
@@ -401,12 +438,33 @@ 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)
+{
+ int ret;
+ struct drm_display_mode *nmode;
+
+ nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
+ if (!nmode)
+ return NULL;
+
+ nmode->mode_id = drm_mode_idr_get(dev, nmode);
+ return nmode;
+}
+
+void drm_crtc_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ drm_mode_idr_put(dev, mode->mode_id);
+
+ kfree(mode);
+}
+
void drm_crtc_config_init(drm_device_t *dev)
{
spin_lock_init(&dev->crtc_config.config_lock);
INIT_LIST_HEAD(&dev->crtc_config.fb_list);
INIT_LIST_HEAD(&dev->crtc_config.crtc_list);
INIT_LIST_HEAD(&dev->crtc_config.output_list);
+ idr_init(&dev->crtc_config.crtc_idr);
}
EXPORT_SYMBOL(drm_crtc_config_init);
@@ -441,7 +499,7 @@ void drm_framebuffer_set_object(drm_device_t *dev, unsigned long handle)
ret = 0;
out_err:
mutex_unlock(&dev->struct_mutex);
- return ret;
+ return;
}
EXPORT_SYMBOL(drm_framebuffer_set_object);
@@ -465,6 +523,7 @@ bool drm_initial_config(drm_device_t *dev, bool can_grow)
/* bind both CRTCs to this fb */
/* only initialise one crtc to enabled state */
list_for_each_entry(crtc, &dev->crtc_config.crtc_list, head) {
+ DRM_DEBUG("crtc is %d\n", crtc->id);
crtc->fb = fb;
if (!vga_crtc) {
vga_crtc = crtc;
@@ -497,7 +556,7 @@ bool drm_initial_config(drm_device_t *dev, bool can_grow)
break;
DRM_DEBUG("Setting desired mode for output %s\n", output->name);
drm_mode_debug_printmodeline(dev, des_mode);
- output->crtc->desired_mode = *des_mode;
+ output->crtc->desired_mode = des_mode;
output->initial_x = 0;
output->initial_y = 0;
use_output = output;
@@ -509,7 +568,7 @@ bool drm_initial_config(drm_device_t *dev, bool can_grow)
break;
DRM_DEBUG("Setting desired mode for output %s\n", output->name);
drm_mode_debug_printmodeline(dev, des_mode);
- output->crtc->desired_mode = *des_mode;
+ output->crtc->desired_mode = des_mode;
#endif
output->initial_x = 0;
output->initial_y = 0;
@@ -531,10 +590,331 @@ void drm_crtc_config_cleanup(drm_device_t *dev)
drm_output_destroy(output);
}
-
list_for_each_entry_safe(crtc, ct, &dev->crtc_config.crtc_list, head) {
drm_crtc_destroy(crtc);
}
}
EXPORT_SYMBOL(drm_crtc_config_cleanup);
+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)
+{
+ drm_device_t *dev = crtc->dev;
+ struct drm_crtc **save_crtcs, *new_crtc;
+ bool save_enabled = crtc->enabled;
+ bool changed;
+ struct drm_output *output;
+ int count = 0, ro;
+
+ save_crtcs = kzalloc(dev->crtc_config.num_crtc * sizeof(struct drm_crtc *), GFP_KERNEL);
+ if (!save_crtcs)
+ return -ENOMEM;
+
+ if (crtc_info->x != crtc->x || crtc_info->y != crtc->y)
+ changed = true;
+
+ if (crtc->mode.mode_id != new_mode->mode_id)
+ changed = true;
+
+ list_for_each_entry(output, &dev->crtc_config.output_list, head) {
+ save_crtcs[count++] = output->crtc;
+
+ if (output->crtc == crtc)
+ new_crtc = NULL;
+ else
+ new_crtc = output->crtc;
+
+ for (ro = 0; ro < crtc_info->count_outputs; ro++)
+ {
+ if (output_set[ro] == output)
+ new_crtc = crtc;
+ }
+ if (new_crtc != output->crtc) {
+ changed = true;
+ output->crtc = new_crtc;
+ }
+ }
+
+ if (changed) {
+ crtc->enabled = new_mode != NULL;
+ if (new_mode) {
+ DRM_DEBUG("attempting to set mode from userspace\n");
+ drm_mode_debug_printmodeline(dev, new_mode);
+ if (!drm_crtc_set_mode(crtc, new_mode, crtc_info->x,
+ crtc_info->y)) {
+ crtc->enabled = save_enabled;
+ count = 0;
+ list_for_each_entry(output, &dev->crtc_config.output_list, head)
+ output->crtc = save_crtcs[count++];
+ kfree(save_crtcs);
+ return -EINVAL;
+ }
+ crtc->desired_x = crtc_info->x;
+ crtc->desired_y = crtc_info->y;
+ crtc->desired_mode = new_mode;
+ }
+ drm_disable_unused_functions(dev);
+ }
+ kfree(save_crtcs);
+ return 0;
+}
+
+void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, struct drm_display_mode *in)
+{
+
+ out->id = in->mode_id;
+ out->clock = in->clock;
+ out->hdisplay = in->hdisplay;
+ out->hsync_start = in->hsync_start;
+ out->hsync_end = in->hsync_end;
+ out->htotal = in->htotal;
+ out->hskew = in->hskew;
+ out->vdisplay = in->vdisplay;
+ out->vsync_start = in->vsync_start;
+ out->vsync_end = in->vsync_end;
+ out->vtotal = in->vtotal;
+ out->vscan = in->vscan;
+
+ out->flags = in->flags;
+ strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
+ out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+}
+
+
+/* IOCTL code from userspace */
+int drm_mode_getresources(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ struct drm_mode_card_res __user *argp = (void __user *)arg;
+ struct drm_mode_card_res card_res;
+ struct list_head *lh;
+ struct drm_output *output;
+ struct drm_crtc *crtc;
+ struct drm_mode_modeinfo u_mode;
+ struct drm_display_mode *mode;
+ int retcode = 0;
+ int mode_count= 0;
+ int output_count = 0;
+ int crtc_count = 0;
+ int copied = 0;
+
+ memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
+
+ list_for_each(lh, &dev->crtc_config.crtc_list)
+ crtc_count++;
+
+ list_for_each_entry(output, &dev->crtc_config.output_list,
+ head)
+ {
+ output_count++;
+ list_for_each(lh, &output->modes)
+ mode_count++;
+ }
+
+ if (copy_from_user(&card_res, argp, sizeof(card_res)))
+ return -EFAULT;
+
+ /* handle this in 3 parts */
+ /* CRTCs */
+ if (card_res.count_crtcs >= crtc_count) {
+ copied = 0;
+ list_for_each_entry(crtc, &dev->crtc_config.crtc_list, head){
+ DRM_DEBUG("CRTC ID is %d\n", crtc->id);
+ if (put_user(crtc->id, &card_res.crtc_id[copied++])) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ card_res.count_crtcs = crtc_count;
+
+
+ /* Outputs */
+ if (card_res.count_outputs >= output_count) {
+ copied = 0;
+ list_for_each_entry(output, &dev->crtc_config.output_list,
+ head) {
+ DRM_DEBUG("OUTPUT ID is %d\n", output->id);
+ if (put_user(output->id, &card_res.output_id[copied++])) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ card_res.count_outputs = output_count;
+
+ /* Modes */
+ if (card_res.count_modes >= mode_count) {
+ copied = 0;
+ list_for_each_entry(output, &dev->crtc_config.output_list,
+ head) {
+ list_for_each_entry(mode, &output->modes, head) {
+ drm_crtc_convert_to_umode(&u_mode, mode);
+ if (copy_to_user(&card_res.modes[copied++], &u_mode, sizeof(struct drm_mode_modeinfo))) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ }
+ card_res.count_modes = mode_count;
+
+done:
+ DRM_DEBUG("Counted %d %d %d\n", card_res.count_crtcs,
+ card_res.count_outputs,
+ card_res.count_modes);
+
+ if (copy_to_user(argp, &card_res, sizeof(card_res)))
+ return -EFAULT;
+
+ return retcode;
+}
+
+int drm_mode_getcrtc(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ struct drm_mode_crtc __user *argp = (void __user *)arg;
+ struct drm_mode_crtc crtc_resp;
+ struct drm_crtc *crtc;
+ struct drm_output *output;
+ int ocount;
+ int retcode = 0;
+
+ if (copy_from_user(&crtc_resp, argp, sizeof(crtc_resp)))
+ return -EFAULT;
+
+ crtc = idr_find(&dev->crtc_config.crtc_idr, crtc_resp.crtc_id);
+ if (!crtc || (crtc->id != crtc_resp.crtc_id))
+ return -EINVAL;
+ crtc_resp.x = crtc->x;
+ crtc_resp.y = crtc->y;
+ crtc_resp.fb_id = 1;
+
+ crtc_resp.outputs = 0;
+ if (crtc->enabled) {
+
+ crtc_resp.mode = crtc->mode.mode_id;
+ ocount = 0;
+ list_for_each_entry(output, &dev->crtc_config.output_list, head) {
+ if (output->crtc == crtc)
+ crtc_resp.outputs |= 1 << (ocount++);
+ }
+ } else {
+ crtc_resp.mode = 0;
+ }
+
+ if (copy_to_user(argp, &crtc_resp, sizeof(crtc_resp)))
+ return -EFAULT;
+
+ return retcode;
+}
+
+int drm_mode_getoutput(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ struct drm_mode_get_output __user *argp = (void __user *)arg;
+ struct drm_mode_get_output out_resp;
+ struct drm_output *output;
+ struct drm_display_mode *mode;
+ int mode_count = 0;
+ int retcode = 0;
+ int copied = 0;
+
+ if (copy_from_user(&out_resp, argp, sizeof(out_resp)))
+ return -EFAULT;
+
+ output= idr_find(&dev->crtc_config.crtc_idr, out_resp.output);
+ if (!output || (output->id != out_resp.output))
+ return -EINVAL;
+
+ list_for_each_entry(mode, &output->modes, head)
+ mode_count++;
+
+ out_resp.mm_width = output->mm_width;
+ out_resp.mm_height = output->mm_height;
+ out_resp.subpixel = output->subpixel_order;
+ out_resp.connection = output->status;
+ if (output->crtc)
+ out_resp.crtc = output->crtc->id;
+ else
+ out_resp.crtc = 0;
+
+ if (out_resp.count_modes >= mode_count) {
+ copied = 0;
+ list_for_each_entry(mode, &output->modes, head) {
+ if (put_user(mode->mode_id, &out_resp.modes[copied++])) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ }
+ }
+ out_resp.count_modes = mode_count;
+
+done:
+ if (copy_to_user(argp, &out_resp, sizeof(out_resp)))
+ return -EFAULT;
+
+ return retcode;
+}
+
+
+int drm_mode_setcrtc(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->head->dev;
+ struct drm_mode_crtc __user *argp = (void __user *)arg;
+ struct drm_mode_crtc crtc_req;
+ struct drm_crtc *crtc;
+ struct drm_output **output_set = NULL, *output;
+ struct drm_display_mode *mode;
+ int retcode = 0;
+ int i;
+
+ if (copy_from_user(&crtc_req, argp, sizeof(crtc_req)))
+ return -EFAULT;
+
+ crtc = idr_find(&dev->crtc_config.crtc_idr, crtc_req.crtc_id);
+ if (!crtc || (crtc->id != crtc_req.crtc_id))
+ return -EINVAL;
+
+ if (crtc_req.mode) {
+ mode = idr_find(&dev->crtc_config.crtc_idr, crtc_req.mode);
+ if (!mode || (mode->mode_id != crtc_req.mode))
+ return -EINVAL;
+ } else
+ mode = NULL;
+
+ if (crtc_req.count_outputs == 0 && mode)
+ return -EINVAL;
+
+ if (crtc_req.count_outputs > 0 && !mode)
+ return -EINVAL;
+
+ if (crtc_req.count_outputs > 0) {
+ u32 out_id;
+ output_set = kmalloc(crtc_req.count_outputs * sizeof(struct drm_output *), GFP_KERNEL);
+ if (!output_set)
+ return -ENOMEM;
+
+ for (i = 0; i < crtc_req.count_outputs; i++)
+ {
+ if (get_user(out_id, &crtc_req.set_outputs[i]))
+ return -EFAULT;
+
+ output = idr_find(&dev->crtc_config.crtc_idr, out_id);
+ if (!output || (out_id != output->id))
+ return -EINVAL;
+
+ output_set[i] = output;
+ }
+ }
+
+ retcode = drm_crtc_set_config(crtc, &crtc_req, mode, output_set);
+ return retcode;
+}