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path: root/drivers/gpu/drm/drm_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
-rw-r--r--drivers/gpu/drm/drm_crtc.c148
1 files changed, 111 insertions, 37 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 6fbfc244748f..ef1b22144d37 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -32,11 +32,10 @@
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/export.h>
-#include "drm.h"
-#include "drmP.h"
-#include "drm_crtc.h"
-#include "drm_edid.h"
-#include "drm_fourcc.h"
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_fourcc.h>
/* Avoid boilerplate. I'm tired of typing. */
#define DRM_ENUM_NAME_FN(fnname, list) \
@@ -294,6 +293,8 @@ int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
{
int ret;
+ kref_init(&fb->refcount);
+
ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
if (ret)
return ret;
@@ -307,6 +308,38 @@ int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
}
EXPORT_SYMBOL(drm_framebuffer_init);
+static void drm_framebuffer_free(struct kref *kref)
+{
+ struct drm_framebuffer *fb =
+ container_of(kref, struct drm_framebuffer, refcount);
+ fb->funcs->destroy(fb);
+}
+
+/**
+ * drm_framebuffer_unreference - unref a framebuffer
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ */
+void drm_framebuffer_unreference(struct drm_framebuffer *fb)
+{
+ struct drm_device *dev = fb->dev;
+ DRM_DEBUG("FB ID: %d\n", fb->base.id);
+ WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
+ kref_put(&fb->refcount, drm_framebuffer_free);
+}
+EXPORT_SYMBOL(drm_framebuffer_unreference);
+
+/**
+ * drm_framebuffer_reference - incr the fb refcnt
+ */
+void drm_framebuffer_reference(struct drm_framebuffer *fb)
+{
+ DRM_DEBUG("FB ID: %d\n", fb->base.id);
+ kref_get(&fb->refcount);
+}
+EXPORT_SYMBOL(drm_framebuffer_reference);
+
/**
* drm_framebuffer_cleanup - remove a framebuffer object
* @fb: framebuffer to remove
@@ -320,6 +353,32 @@ EXPORT_SYMBOL(drm_framebuffer_init);
void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
{
struct drm_device *dev = fb->dev;
+ /*
+ * This could be moved to drm_framebuffer_remove(), but for
+ * debugging is nice to keep around the list of fb's that are
+ * no longer associated w/ a drm_file but are not unreferenced
+ * yet. (i915 and omapdrm have debugfs files which will show
+ * this.)
+ */
+ drm_mode_object_put(dev, &fb->base);
+ list_del(&fb->head);
+ dev->mode_config.num_fb--;
+}
+EXPORT_SYMBOL(drm_framebuffer_cleanup);
+
+/**
+ * drm_framebuffer_remove - remove and unreference a framebuffer object
+ * @fb: framebuffer to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Scans all the CRTCs and planes in @dev's mode_config. If they're
+ * using @fb, removes it, setting it to NULL.
+ */
+void drm_framebuffer_remove(struct drm_framebuffer *fb)
+{
+ struct drm_device *dev = fb->dev;
struct drm_crtc *crtc;
struct drm_plane *plane;
struct drm_mode_set set;
@@ -350,11 +409,11 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
}
}
- drm_mode_object_put(dev, &fb->base);
- list_del(&fb->head);
- dev->mode_config.num_fb--;
+ list_del(&fb->filp_head);
+
+ drm_framebuffer_unreference(fb);
}
-EXPORT_SYMBOL(drm_framebuffer_cleanup);
+EXPORT_SYMBOL(drm_framebuffer_remove);
/**
* drm_crtc_init - Initialise a new CRTC object
@@ -377,6 +436,7 @@ int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
crtc->dev = dev;
crtc->funcs = funcs;
+ crtc->invert_dimensions = false;
mutex_lock(&dev->mode_config.mutex);
@@ -1031,11 +1091,7 @@ void drm_mode_config_cleanup(struct drm_device *dev)
}
list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
- fb->funcs->destroy(fb);
- }
-
- list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
- crtc->funcs->destroy(crtc);
+ drm_framebuffer_remove(fb);
}
list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
@@ -1043,6 +1099,10 @@ void drm_mode_config_cleanup(struct drm_device *dev)
plane->funcs->destroy(plane);
}
+ list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+ crtc->funcs->destroy(crtc);
+ }
+
idr_remove_all(&dev->mode_config.crtc_idr);
idr_destroy(&dev->mode_config.crtc_idr);
}
@@ -1852,6 +1912,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
if (crtc_req->mode_valid) {
+ int hdisplay, vdisplay;
/* If we have a mode we need a framebuffer. */
/* If we pass -1, set the mode with the currently bound fb */
if (crtc_req->fb_id == -1) {
@@ -1887,14 +1948,20 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
- if (mode->hdisplay > fb->width ||
- mode->vdisplay > fb->height ||
- crtc_req->x > fb->width - mode->hdisplay ||
- crtc_req->y > fb->height - mode->vdisplay) {
- DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n",
- mode->hdisplay, mode->vdisplay,
- crtc_req->x, crtc_req->y,
- fb->width, fb->height);
+ hdisplay = mode->hdisplay;
+ vdisplay = mode->vdisplay;
+
+ if (crtc->invert_dimensions)
+ swap(hdisplay, vdisplay);
+
+ if (hdisplay > fb->width ||
+ vdisplay > fb->height ||
+ crtc_req->x > fb->width - hdisplay ||
+ crtc_req->y > fb->height - vdisplay) {
+ DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
+ fb->width, fb->height,
+ hdisplay, vdisplay, crtc_req->x, crtc_req->y,
+ crtc->invert_dimensions ? " (inverted)" : "");
ret = -ENOSPC;
goto out;
}
@@ -2169,6 +2236,8 @@ static int format_check(const struct drm_mode_fb_cmd2 *r)
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
+ case DRM_FORMAT_NV24:
+ case DRM_FORMAT_NV42:
case DRM_FORMAT_YUV410:
case DRM_FORMAT_YVU410:
case DRM_FORMAT_YUV411:
@@ -2335,11 +2404,7 @@ int drm_mode_rmfb(struct drm_device *dev,
goto out;
}
- /* TODO release all crtc connected to the framebuffer */
- /* TODO unhock the destructor from the buffer object */
-
- list_del(&fb->filp_head);
- fb->funcs->destroy(fb);
+ drm_framebuffer_remove(fb);
out:
mutex_unlock(&dev->mode_config.mutex);
@@ -2489,8 +2554,7 @@ void drm_fb_release(struct drm_file *priv)
mutex_lock(&dev->mode_config.mutex);
list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
- list_del(&fb->filp_head);
- fb->funcs->destroy(fb);
+ drm_framebuffer_remove(fb);
}
mutex_unlock(&dev->mode_config.mutex);
}
@@ -3489,6 +3553,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
struct drm_framebuffer *fb;
struct drm_pending_vblank_event *e = NULL;
unsigned long flags;
+ int hdisplay, vdisplay;
int ret = -EINVAL;
if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
@@ -3518,14 +3583,19 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
goto out;
fb = obj_to_fb(obj);
- if (crtc->mode.hdisplay > fb->width ||
- crtc->mode.vdisplay > fb->height ||
- crtc->x > fb->width - crtc->mode.hdisplay ||
- crtc->y > fb->height - crtc->mode.vdisplay) {
- DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n",
- fb->width, fb->height,
- crtc->mode.hdisplay, crtc->mode.vdisplay,
- crtc->x, crtc->y);
+ hdisplay = crtc->mode.hdisplay;
+ vdisplay = crtc->mode.vdisplay;
+
+ if (crtc->invert_dimensions)
+ swap(hdisplay, vdisplay);
+
+ if (hdisplay > fb->width ||
+ vdisplay > fb->height ||
+ crtc->x > fb->width - hdisplay ||
+ crtc->y > fb->height - vdisplay) {
+ DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
+ fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
+ crtc->invert_dimensions ? " (inverted)" : "");
ret = -ENOSPC;
goto out;
}
@@ -3718,6 +3788,8 @@ int drm_format_num_planes(uint32_t format)
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
+ case DRM_FORMAT_NV24:
+ case DRM_FORMAT_NV42:
return 2;
default:
return 1;
@@ -3751,6 +3823,8 @@ int drm_format_plane_cpp(uint32_t format, int plane)
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
+ case DRM_FORMAT_NV24:
+ case DRM_FORMAT_NV42:
return plane ? 2 : 1;
case DRM_FORMAT_YUV410:
case DRM_FORMAT_YVU410:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 20:14:59 +0100