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authorDave Airlie <airlied@redhat.com>2016-07-27 10:33:08 +1000
committerDave Airlie <airlied@redhat.com>2016-07-27 10:33:08 +1000
commit9af07af948ff3a8e20920b9279821db244d1ca69 (patch)
treeb208a39aa6b33a24f46cf2bd5cbbd623f2f68bfb /include/drm
parent5e580523d9128a4d8364fe89d36c38fc7819c8dd (diff)
parente8d3ef02787fc72996cfb423180dc79764c239fa (diff)
downloadlinux-stericsson-9af07af948ff3a8e20920b9279821db244d1ca69.tar.gz
Merge tag 'topic/drm-misc-2016-07-22' of git://anongit.freedesktop.org/drm-intel into drm-next
Suddenly everyone shows up with their trivial patch series! - piles of if (!ptr) check removals from Markus Elfring - more of_node_put fixes from Peter Chen - make fbdev support really optional in all drivers (except vmwgfx), somehow this fell through the cracks when we did all the hard prep work a while ago. Patches from Tobias Jakobi. - leftover patches for the connector reg/unreg cleanup (required that I backmerged drm-next) from Chris - last vgem fence patch from Chris - fix up warnings in the new sphinx gpu docs build - misc other small bits * tag 'topic/drm-misc-2016-07-22' of git://anongit.freedesktop.org/drm-intel: (57 commits) GPU-DRM-Exynos: Delete an unnecessary check before the function call "vunmap" GPU-DRM-sun4i: Delete an unnecessary check before drm_fbdev_cma_hotplug_event() drm/atomic: Delete an unnecessary check before drm_property_unreference_blob() drm/rockchip: analogix_dp: add missing clk_disable_unprepare() on error drm: drm_connector->s/connector_id/index/ for consistency drm/virtio: Fix non static symbol warning drm/arc: Remove redundant dev_err call in arcpgu_load() drm/arc: Fix some sparse warnings drm/vgem: Fix non static symbol warning drm/doc: Spinx leftovers drm/dp-mst: Missing kernel doc drm/dp-mst: Remove tx_down_in_progress drm/doc: Fix missing kerneldoc for drm_dp_helper.c drm: Extract&Document drm_irq.h drm/doc: document all the properties in drm_mode_config drm/drm-kms.rst: Remove unused drm_fourcc.h include directive drm/doc: Add kerneldoc for @index drm: Unexport drm_connector_unregister_all() drm/sun4i: Remove redundant call to drm_connector_unregister_all() drm/ttm: Delete an unnecessary check before the function call "ttm_tt_destroy" ...
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drmP.h83
-rw-r--r--include/drm/drm_crtc.h238
-rw-r--r--include/drm/drm_dp_helper.h9
-rw-r--r--include/drm/drm_dp_mst_helper.h141
-rw-r--r--include/drm/drm_irq.h183
5 files changed, 521 insertions, 133 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index c2fe2cffb809..d3778652e462 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -52,7 +52,6 @@
#include <linux/poll.h>
#include <linux/ratelimit.h>
#include <linux/sched.h>
-#include <linux/seqlock.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/vmalloc.h>
@@ -87,6 +86,7 @@ struct drm_device_dma;
struct drm_dma_handle;
struct drm_gem_object;
struct drm_master;
+struct drm_vblank_crtc;
struct device_node;
struct videomode;
@@ -684,35 +684,6 @@ struct drm_minor {
struct mutex debugfs_lock; /* Protects debugfs_list. */
};
-
-struct drm_pending_vblank_event {
- struct drm_pending_event base;
- unsigned int pipe;
- struct drm_event_vblank event;
-};
-
-struct drm_vblank_crtc {
- struct drm_device *dev; /* pointer to the drm_device */
- wait_queue_head_t queue; /**< VBLANK wait queue */
- struct timer_list disable_timer; /* delayed disable timer */
-
- seqlock_t seqlock; /* protects vblank count and time */
-
- u32 count; /* vblank counter */
- struct timeval time; /* vblank timestamp */
-
- atomic_t refcount; /* number of users of vblank interruptsper crtc */
- u32 last; /* protected by dev->vbl_lock, used */
- /* for wraparound handling */
- u32 last_wait; /* Last vblank seqno waited per CRTC */
- unsigned int inmodeset; /* Display driver is setting mode */
- unsigned int pipe; /* crtc index */
- int framedur_ns; /* frame/field duration in ns */
- int linedur_ns; /* line duration in ns */
- bool enabled; /* so we don't call enable more than
- once per disable */
-};
-
/**
* DRM device structure. This structure represent a complete card that
* may contain multiple heads.
@@ -847,6 +818,8 @@ struct drm_device {
int switch_power_state;
};
+#include <drm/drm_irq.h>
+
#define DRM_SWITCH_POWER_ON 0
#define DRM_SWITCH_POWER_OFF 1
#define DRM_SWITCH_POWER_CHANGING 2
@@ -933,56 +906,6 @@ void drm_clflush_virt_range(void *addr, unsigned long length);
* DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
*/
- /* IRQ support (drm_irq.h) */
-extern int drm_irq_install(struct drm_device *dev, int irq);
-extern int drm_irq_uninstall(struct drm_device *dev);
-
-extern int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs);
-extern int drm_wait_vblank(struct drm_device *dev, void *data,
- struct drm_file *filp);
-extern u32 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
-extern u32 drm_crtc_vblank_count(struct drm_crtc *crtc);
-extern u32 drm_crtc_vblank_count_and_time(struct drm_crtc *crtc,
- struct timeval *vblanktime);
-extern void drm_crtc_send_vblank_event(struct drm_crtc *crtc,
- struct drm_pending_vblank_event *e);
-extern void drm_crtc_arm_vblank_event(struct drm_crtc *crtc,
- struct drm_pending_vblank_event *e);
-extern bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe);
-extern bool drm_crtc_handle_vblank(struct drm_crtc *crtc);
-extern int drm_crtc_vblank_get(struct drm_crtc *crtc);
-extern void drm_crtc_vblank_put(struct drm_crtc *crtc);
-extern void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe);
-extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc);
-extern void drm_vblank_off(struct drm_device *dev, unsigned int pipe);
-extern void drm_vblank_on(struct drm_device *dev, unsigned int pipe);
-extern void drm_crtc_vblank_off(struct drm_crtc *crtc);
-extern void drm_crtc_vblank_reset(struct drm_crtc *crtc);
-extern void drm_crtc_vblank_on(struct drm_crtc *crtc);
-extern void drm_vblank_cleanup(struct drm_device *dev);
-extern u32 drm_accurate_vblank_count(struct drm_crtc *crtc);
-extern u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe);
-
-extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
- unsigned int pipe, int *max_error,
- struct timeval *vblank_time,
- unsigned flags,
- const struct drm_display_mode *mode);
-extern void drm_calc_timestamping_constants(struct drm_crtc *crtc,
- const struct drm_display_mode *mode);
-
-/**
- * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC
- * @crtc: which CRTC's vblank waitqueue to retrieve
- *
- * This function returns a pointer to the vblank waitqueue for the CRTC.
- * Drivers can use this to implement vblank waits using wait_event() & co.
- */
-static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc)
-{
- return &crtc->dev->vblank[drm_crtc_index(crtc)].queue;
-}
-
/* Modesetting support */
extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe);
extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 9e6ab4a0c274..3edeaf88ebc0 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -782,7 +782,10 @@ struct drm_crtc {
struct drm_plane *primary;
struct drm_plane *cursor;
- /* position inside the mode_config.list, can be used as a [] idx */
+ /**
+ * @index: Position inside the mode_config.list, can be used as an array
+ * index. It is invariant over the lifetime of the CRTC.
+ */
unsigned index;
/* position of cursor plane on crtc */
@@ -1209,7 +1212,10 @@ struct drm_encoder {
char *name;
int encoder_type;
- /* position inside the mode_config.list, can be used as a [] idx */
+ /**
+ * @index: Position inside the mode_config.list, can be used as an array
+ * index. It is invariant over the lifetime of the encoder.
+ */
unsigned index;
uint32_t possible_crtcs;
@@ -1240,7 +1246,6 @@ struct drm_encoder {
* @head: list management
* @base: base KMS object
* @name: human readable name, can be overwritten by the driver
- * @connector_id: compacted connector id useful indexing arrays
* @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
* @connector_type_id: index into connector type enum
* @interlace_allowed: can this connector handle interlaced modes?
@@ -1297,7 +1302,15 @@ struct drm_connector {
struct drm_mode_object base;
char *name;
- int connector_id;
+
+ /**
+ * @index: Compacted connector index, which matches the position inside
+ * the mode_config.list for drivers not supporting hot-add/removing. Can
+ * be used as an array index. It is invariant over the lifetime of the
+ * connector.
+ */
+ unsigned index;
+
int connector_type;
int connector_type_id;
bool interlace_allowed;
@@ -1710,7 +1723,10 @@ struct drm_plane {
enum drm_plane_type type;
- /* position inside the mode_config.list, can be used as a [] idx */
+ /**
+ * @index: Position inside the mode_config.list, can be used as an array
+ * index. It is invariant over the lifetime of the plane.
+ */
unsigned index;
const struct drm_plane_helper_funcs *helper_private;
@@ -2318,8 +2334,6 @@ struct drm_mode_config_funcs {
* @fb_lock: mutex to protect fb state and lists
* @num_fb: number of fbs available
* @fb_list: list of framebuffers available
- * @num_connector: number of connectors on this device
- * @connector_list: list of connector objects
* @num_encoder: number of encoders on this device
* @encoder_list: list of encoder objects
* @num_overlay_plane: number of overlay planes on this device
@@ -2341,18 +2355,8 @@ struct drm_mode_config_funcs {
* @property_blob_list: list of all the blob property objects
* @blob_lock: mutex for blob property allocation and management
* @*_property: core property tracking
- * @degamma_lut_property: LUT used to convert the framebuffer's colors to linear
- * gamma
- * @degamma_lut_size_property: size of the degamma LUT as supported by the
- * driver (read-only)
- * @ctm_property: Matrix used to convert colors after the lookup in the
- * degamma LUT
- * @gamma_lut_property: LUT used to convert the colors, after the CSC matrix, to
- * the gamma space of the connected screen (read-only)
- * @gamma_lut_size_property: size of the gamma LUT as supported by the driver
* @preferred_depth: preferred RBG pixel depth, used by fb helpers
* @prefer_shadow: hint to userspace to prefer shadow-fb rendering
- * @async_page_flip: does this device support async flips on the primary plane?
* @cursor_width: hint to userspace for max cursor width
* @cursor_height: hint to userspace for max cursor height
* @helper_private: mid-layer private data
@@ -2394,8 +2398,17 @@ struct drm_mode_config {
int num_fb;
struct list_head fb_list;
+ /**
+ * @num_connector: Number of connectors on this device.
+ */
int num_connector;
+ /**
+ * @connector_ida: ID allocator for connector indices.
+ */
struct ida connector_ida;
+ /**
+ * @connector_list: List of connector objects.
+ */
struct list_head connector_list;
int num_encoder;
struct list_head encoder_list;
@@ -2430,64 +2443,238 @@ struct drm_mode_config {
/* pointers to standard properties */
struct list_head property_blob_list;
+ /**
+ * @edid_property: Default connector property to hold the EDID of the
+ * currently connected sink, if any.
+ */
struct drm_property *edid_property;
+ /**
+ * @dpms_property: Default connector property to control the
+ * connector's DPMS state.
+ */
struct drm_property *dpms_property;
+ /**
+ * @path_property: Default connector property to hold the DP MST path
+ * for the port.
+ */
struct drm_property *path_property;
+ /**
+ * @tile_property: Default connector property to store the tile
+ * position of a tiled screen, for sinks which need to be driven with
+ * multiple CRTCs.
+ */
struct drm_property *tile_property;
+ /**
+ * @plane_type_property: Default plane property to differentiate
+ * CURSOR, PRIMARY and OVERLAY legacy uses of planes.
+ */
struct drm_property *plane_type_property;
+ /**
+ * @rotation_property: Optional property for planes or CRTCs to specifiy
+ * rotation.
+ */
struct drm_property *rotation_property;
+ /**
+ * @prop_src_x: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
struct drm_property *prop_src_x;
+ /**
+ * @prop_src_y: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
struct drm_property *prop_src_y;
+ /**
+ * @prop_src_w: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
struct drm_property *prop_src_w;
+ /**
+ * @prop_src_h: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
struct drm_property *prop_src_h;
+ /**
+ * @prop_crtc_x: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
struct drm_property *prop_crtc_x;
+ /**
+ * @prop_crtc_y: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
struct drm_property *prop_crtc_y;
+ /**
+ * @prop_crtc_w: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
struct drm_property *prop_crtc_w;
+ /**
+ * @prop_crtc_h: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
struct drm_property *prop_crtc_h;
+ /**
+ * @prop_fb_id: Default atomic plane property to specify the
+ * &drm_framebuffer.
+ */
struct drm_property *prop_fb_id;
+ /**
+ * @prop_crtc_id: Default atomic plane property to specify the
+ * &drm_crtc.
+ */
struct drm_property *prop_crtc_id;
+ /**
+ * @prop_active: Default atomic CRTC property to control the active
+ * state, which is the simplified implementation for DPMS in atomic
+ * drivers.
+ */
struct drm_property *prop_active;
+ /**
+ * @prop_mode_id: Default atomic CRTC property to set the mode for a
+ * CRTC. A 0 mode implies that the CRTC is entirely disabled - all
+ * connectors must be of and active must be set to disabled, too.
+ */
struct drm_property *prop_mode_id;
- /* DVI-I properties */
+ /**
+ * @dvi_i_subconnector_property: Optional DVI-I property to
+ * differentiate between analog or digital mode.
+ */
struct drm_property *dvi_i_subconnector_property;
+ /**
+ * @dvi_i_select_subconnector_property: Optional DVI-I property to
+ * select between analog or digital mode.
+ */
struct drm_property *dvi_i_select_subconnector_property;
- /* TV properties */
+ /**
+ * @tv_subconnector_property: Optional TV property to differentiate
+ * between different TV connector types.
+ */
struct drm_property *tv_subconnector_property;
+ /**
+ * @tv_select_subconnector_property: Optional TV property to select
+ * between different TV connector types.
+ */
struct drm_property *tv_select_subconnector_property;
+ /**
+ * @tv_mode_property: Optional TV property to select
+ * the output TV mode.
+ */
struct drm_property *tv_mode_property;
+ /**
+ * @tv_left_margin_property: Optional TV property to set the left
+ * margin.
+ */
struct drm_property *tv_left_margin_property;
+ /**
+ * @tv_right_margin_property: Optional TV property to set the right
+ * margin.
+ */
struct drm_property *tv_right_margin_property;
+ /**
+ * @tv_top_margin_property: Optional TV property to set the right
+ * margin.
+ */
struct drm_property *tv_top_margin_property;
+ /**
+ * @tv_bottom_margin_property: Optional TV property to set the right
+ * margin.
+ */
struct drm_property *tv_bottom_margin_property;
+ /**
+ * @tv_brightness_property: Optional TV property to set the
+ * brightness.
+ */
struct drm_property *tv_brightness_property;
+ /**
+ * @tv_contrast_property: Optional TV property to set the
+ * contrast.
+ */
struct drm_property *tv_contrast_property;
+ /**
+ * @tv_flicker_reduction_property: Optional TV property to control the
+ * flicker reduction mode.
+ */
struct drm_property *tv_flicker_reduction_property;
+ /**
+ * @tv_overscan_property: Optional TV property to control the overscan
+ * setting.
+ */
struct drm_property *tv_overscan_property;
+ /**
+ * @tv_saturation_property: Optional TV property to set the
+ * saturation.
+ */
struct drm_property *tv_saturation_property;
+ /**
+ * @tv_hue_property: Optional TV property to set the hue.
+ */
struct drm_property *tv_hue_property;
- /* Optional properties */
+ /**
+ * @scaling_mode_property: Optional connector property to control the
+ * upscaling, mostly used for built-in panels.
+ */
struct drm_property *scaling_mode_property;
+ /**
+ * @aspect_ratio_property: Optional connector property to control the
+ * HDMI infoframe aspect ratio setting.
+ */
struct drm_property *aspect_ratio_property;
+ /**
+ * @dirty_info_property: Optional connector property to give userspace a
+ * hint that the DIRTY_FB ioctl should be used.
+ */
struct drm_property *dirty_info_property;
- /* Optional color correction properties */
+ /**
+ * @degamma_lut_property: Optional CRTC property to set the LUT used to
+ * convert the framebuffer's colors to linear gamma.
+ */
struct drm_property *degamma_lut_property;
+ /**
+ * @degamma_lut_size_property: Optional CRTC property for the size of
+ * the degamma LUT as supported by the driver (read-only).
+ */
struct drm_property *degamma_lut_size_property;
+ /**
+ * @ctm_property: Optional CRTC property to set the
+ * matrix used to convert colors after the lookup in the
+ * degamma LUT.
+ */
struct drm_property *ctm_property;
+ /**
+ * @gamma_lut_property: Optional CRTC property to set the LUT used to
+ * convert the colors, after the CTM matrix, to the gamma space of the
+ * connected screen.
+ */
struct drm_property *gamma_lut_property;
+ /**
+ * @gamma_lut_size_property: Optional CRTC property for the size of the
+ * gamma LUT as supported by the driver (read-only).
+ */
struct drm_property *gamma_lut_size_property;
- /* properties for virtual machine layout */
+ /**
+ * @suggested_x_property: Optional connector property with a hint for
+ * the position of the output on the host's screen.
+ */
struct drm_property *suggested_x_property;
+ /**
+ * @suggested_y_property: Optional connector property with a hint for
+ * the position of the output on the host's screen.
+ */
struct drm_property *suggested_y_property;
/* dumb ioctl parameters */
uint32_t preferred_depth, prefer_shadow;
- /* whether async page flip is supported or not */
+ /**
+ * @async_page_flip: Does this device support async flips on the primary
+ * plane?
+ */
bool async_page_flip;
/**
@@ -2584,12 +2771,9 @@ void drm_connector_unregister(struct drm_connector *connector);
extern void drm_connector_cleanup(struct drm_connector *connector);
static inline unsigned drm_connector_index(struct drm_connector *connector)
{
- return connector->connector_id;
+ return connector->index;
}
-/* helpers to {un}register all connectors from sysfs for device */
-extern void drm_connector_unregister_all(struct drm_device *dev);
-
extern __printf(5, 6)
int drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 4d85cf2874af..72dee1213268 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -747,7 +747,14 @@ struct drm_dp_aux {
struct mutex hw_mutex;
ssize_t (*transfer)(struct drm_dp_aux *aux,
struct drm_dp_aux_msg *msg);
- unsigned i2c_nack_count, i2c_defer_count;
+ /**
+ * @i2c_nack_count: Counts I2C NACKs, used for DP validation.
+ */
+ unsigned i2c_nack_count;
+ /**
+ * @i2c_defer_count: Counts I2C DEFERs, used for DP validation.
+ */
+ unsigned i2c_defer_count;
};
ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index fdb47051d549..003207670597 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -87,7 +87,15 @@ struct drm_dp_mst_port {
struct drm_connector *connector;
struct drm_dp_mst_topology_mgr *mgr;
- struct edid *cached_edid; /* for DP logical ports - make tiling work */
+ /**
+ * @cached_edid: for DP logical ports - make tiling work by ensuring
+ * that the EDID for all connectors is read immediately.
+ */
+ struct edid *cached_edid;
+ /**
+ * @has_audio: Tracks whether the sink connector to this port is
+ * audio-capable.
+ */
bool has_audio;
};
@@ -397,71 +405,154 @@ struct drm_dp_payload {
/**
* struct drm_dp_mst_topology_mgr - DisplayPort MST manager
- * @dev: device pointer for adding i2c devices etc.
- * @cbs: callbacks for connector addition and destruction.
- * @max_dpcd_transaction_bytes - maximum number of bytes to read/write in one go.
- * @aux: aux channel for the DP connector.
- * @max_payloads: maximum number of payloads the GPU can generate.
- * @conn_base_id: DRM connector ID this mgr is connected to.
- * @down_rep_recv: msg receiver state for down replies.
- * @up_req_recv: msg receiver state for up requests.
- * @lock: protects mst state, primary, dpcd.
- * @mst_state: if this manager is enabled for an MST capable port.
- * @mst_primary: pointer to the primary branch device.
- * @dpcd: cache of DPCD for primary port.
- * @pbn_div: PBN to slots divisor.
*
* This struct represents the toplevel displayport MST topology manager.
* There should be one instance of this for every MST capable DP connector
* on the GPU.
*/
struct drm_dp_mst_topology_mgr {
-
+ /**
+ * @dev: device pointer for adding i2c devices etc.
+ */
struct device *dev;
+ /**
+ * @cbs: callbacks for connector addition and destruction.
+ */
const struct drm_dp_mst_topology_cbs *cbs;
+ /**
+ * @max_dpcd_transaction_bytes: maximum number of bytes to read/write
+ * in one go.
+ */
int max_dpcd_transaction_bytes;
- struct drm_dp_aux *aux; /* auxch for this topology mgr to use */
+ /**
+ * @aux: AUX channel for the DP MST connector this topolgy mgr is
+ * controlling.
+ */
+ struct drm_dp_aux *aux;
+ /**
+ * @max_payloads: maximum number of payloads the GPU can generate.
+ */
int max_payloads;
+ /**
+ * @conn_base_id: DRM connector ID this mgr is connected to. Only used
+ * to build the MST connector path value.
+ */
int conn_base_id;
- /* only ever accessed from the workqueue - which should be serialised */
+ /**
+ * @down_rep_recv: Message receiver state for down replies. This and
+ * @up_req_recv are only ever access from the work item, which is
+ * serialised.
+ */
struct drm_dp_sideband_msg_rx down_rep_recv;
+ /**
+ * @up_req_recv: Message receiver state for up requests. This and
+ * @down_rep_recv are only ever access from the work item, which is
+ * serialised.
+ */
struct drm_dp_sideband_msg_rx up_req_recv;
- /* pointer to info about the initial MST device */
- struct mutex lock; /* protects mst_state + primary + dpcd */
+ /**
+ * @lock: protects mst state, primary, dpcd.
+ */
+ struct mutex lock;
+ /**
+ * @mst_state: If this manager is enabled for an MST capable port. False
+ * if no MST sink/branch devices is connected.
+ */
bool mst_state;
+ /**
+ * @mst_primary: Pointer to the primary/first branch device.
+ */
struct drm_dp_mst_branch *mst_primary;
+ /**
+ * @dpcd: Cache of DPCD for primary port.
+ */
u8 dpcd[DP_RECEIVER_CAP_SIZE];
+ /**
+ * @sink_count: Sink count from DEVICE_SERVICE_IRQ_VECTOR_ESI0.
+ */
u8 sink_count;
+ /**
+ * @pbn_div: PBN to slots divisor.
+ */
int pbn_div;
+ /**
+ * @total_slots: Total slots that can be allocated.
+ */
int total_slots;
+ /**
+ * @avail_slots: Still available slots that can be allocated.
+ */
int avail_slots;
+ /**
+ * @total_pbn: Total PBN count.
+ */
int total_pbn;
- /* messages to be transmitted */
- /* qlock protects the upq/downq and in_progress,
- the mstb tx_slots and txmsg->state once they are queued */
+ /**
+ * @qlock: protects @tx_msg_downq, the tx_slots in struct
+ * &drm_dp_mst_branch and txmsg->state once they are queued
+ */
struct mutex qlock;
+ /**
+ * @tx_msg_downq: List of pending down replies.
+ */
struct list_head tx_msg_downq;
- bool tx_down_in_progress;
- /* payload info + lock for it */
+ /**
+ * @payload_lock: Protect payload information.
+ */
struct mutex payload_lock;
+ /**
+ * @proposed_vcpis: Array of pointers for the new VCPI allocation. The
+ * VCPI structure itself is embedded into the corresponding
+ * &drm_dp_mst_port structure.
+ */
struct drm_dp_vcpi **proposed_vcpis;
+ /**
+ * @payloads: Array of payloads.
+ */
struct drm_dp_payload *payloads;
+ /**
+ * @payload_mask: Elements of @payloads actually in use. Since
+ * reallocation of active outputs isn't possible gaps can be created by
+ * disabling outputs out of order compared to how they've been enabled.
+ */
unsigned long payload_mask;
+ /**
+ * @vcpi_mask: Similar to @payload_mask, but for @proposed_vcpis.
+ */
unsigned long vcpi_mask;
+ /**
+ * @tx_waitq: Wait to queue stall for the tx worker.
+ */
wait_queue_head_t tx_waitq;
+ /**
+ * @work: Probe work.
+ */
struct work_struct work;
-
+ /**
+ * @tx_work: Sideband transmit worker. This can nest within the main
+ * @work worker for each transaction @work launches.
+ */
struct work_struct tx_work;
+ /**
+ * @destroy_connector_list: List of to be destroyed connectors.
+ */
struct list_head destroy_connector_list;
+ /**
+ * @destroy_connector_lock: Protects @connector_list.
+ */
struct mutex destroy_connector_lock;
+ /**
+ * @destroy_connector_work: Work item to destroy connectors. Needed to
+ * avoid locking inversion.
+ */
struct work_struct destroy_connector_work;
};
diff --git a/include/drm/drm_irq.h b/include/drm/drm_irq.h
new file mode 100644
index 000000000000..2401b14d301f
--- /dev/null
+++ b/include/drm/drm_irq.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2016 Intel Corp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DRM_IRQ_H_
+#define _DRM_IRQ_H_
+
+#include <linux/seqlock.h>
+
+/**
+ * struct drm_pending_vblank_event - pending vblank event tracking
+ */
+struct drm_pending_vblank_event {
+ /**
+ * @base: Base structure for tracking pending DRM events.
+ */
+ struct drm_pending_event base;
+ /**
+ * @pipe: drm_crtc_index() of the &drm_crtc this event is for.
+ */
+ unsigned int pipe;
+ /**
+ * @event: Actual event which will be sent to userspace.
+ */
+ struct drm_event_vblank event;
+};
+
+/**
+ * struct drm_vblank_crtc - vblank tracking for a CRTC
+ *
+ * This structure tracks the vblank state for one CRTC.
+ *
+ * Note that for historical reasons - the vblank handling code is still shared
+ * with legacy/non-kms drivers - this is a free-standing structure not directly
+ * connected to struct &drm_crtc. But all public interface functions are taking
+ * a struct &drm_crtc to hide this implementation detail.
+ */
+struct drm_vblank_crtc {
+ /**
+ * @dev: Pointer to the &drm_device.
+ */
+ struct drm_device *dev;
+ /**
+ * @queue: Wait queue for vblank waiters.
+ */
+ wait_queue_head_t queue; /**< VBLANK wait queue */
+ /**
+ * @disable_timer: Disable timer for the delayed vblank disabling
+ * hysteresis logic. Vblank disabling is controlled through the
+ * drm_vblank_offdelay module option and the setting of the
+ * max_vblank_count value in the &drm_device structure.
+ */
+ struct timer_list disable_timer;
+
+ /**
+ * @seqlock: Protect vblank count and time.
+ */
+ seqlock_t seqlock; /* protects vblank count and time */
+
+ /**
+ * @count: Current software vblank counter.
+ */
+ u32 count;
+ /**
+ * @time: Vblank timestamp corresponding to @count.
+ */
+ struct timeval time;
+
+ /**
+ * @refcount: Number of users/waiters of the vblank interrupt. Only when
+ * this refcount reaches 0 can the hardware interrupt be disabled using
+ * @disable_timer.
+ */
+ atomic_t refcount; /* number of users of vblank interruptsper crtc */
+ /**
+ * @last: Protected by dev->vbl_lock, used for wraparound handling.
+ */
+ u32 last;
+ /**
+ * @inmodeset: Tracks whether the vblank is disabled due to a modeset.
+ * For legacy driver bit 2 additionally tracks whether an additional
+ * temporary vblank reference has been acquired to paper over the
+ * hardware counter resetting/jumping. KMS drivers should instead just
+ * call drm_crtc_vblank_off() and drm_crtc_vblank_on(), which explicitly
+ * save and restore the vblank count.
+ */
+ unsigned int inmodeset; /* Display driver is setting mode */
+ /**
+ * @pipe: drm_crtc_index() of the &drm_crtc corresponding to this
+ * structure.
+ */
+ unsigned int pipe;
+ /**
+ * @framedur_ns: Frame/Field duration in ns, used by
+ * drm_calc_vbltimestamp_from_scanoutpos() and computed by
+ * drm_calc_timestamping_constants().
+ */
+ int framedur_ns;
+ /**
+ * @linedur_ns: Line duration in ns, used by
+ * drm_calc_vbltimestamp_from_scanoutpos() and computed by
+ * drm_calc_timestamping_constants().
+ */
+ int linedur_ns;
+ /**
+ * @enabled: Tracks the enabling state of the corresponding &drm_crtc to
+ * avoid double-disabling and hence corrupting saved state. Needed by
+ * drivers not using atomic KMS, since those might go through their CRTC
+ * disabling functions multiple times.
+ */
+ bool enabled;
+};
+
+extern int drm_irq_install(struct drm_device *dev, int irq);
+extern int drm_irq_uninstall(struct drm_device *dev);
+
+extern int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs);
+extern int drm_wait_vblank(struct drm_device *dev, void *data,
+ struct drm_file *filp);
+extern u32 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
+extern u32 drm_crtc_vblank_count(struct drm_crtc *crtc);
+extern u32 drm_crtc_vblank_count_and_time(struct drm_crtc *crtc,
+ struct timeval *vblanktime);
+extern void drm_crtc_send_vblank_event(struct drm_crtc *crtc,
+ struct drm_pending_vblank_event *e);
+extern void drm_crtc_arm_vblank_event(struct drm_crtc *crtc,
+ struct drm_pending_vblank_event *e);
+extern bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe);
+extern bool drm_crtc_handle_vblank(struct drm_crtc *crtc);
+extern int drm_crtc_vblank_get(struct drm_crtc *crtc);
+extern void drm_crtc_vblank_put(struct drm_crtc *crtc);
+extern void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe);
+extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc);
+extern void drm_vblank_off(struct drm_device *dev, unsigned int pipe);
+extern void drm_vblank_on(struct drm_device *dev, unsigned int pipe);
+extern void drm_crtc_vblank_off(struct drm_crtc *crtc);
+extern void drm_crtc_vblank_reset(struct drm_crtc *crtc);
+extern void drm_crtc_vblank_on(struct drm_crtc *crtc);
+extern void drm_vblank_cleanup(struct drm_device *dev);
+extern u32 drm_accurate_vblank_count(struct drm_crtc *crtc);
+extern u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe);
+
+extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
+ unsigned int pipe, int *max_error,
+ struct timeval *vblank_time,
+ unsigned flags,
+ const struct drm_display_mode *mode);
+extern void drm_calc_timestamping_constants(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode);
+
+/**
+ * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC
+ * @crtc: which CRTC's vblank waitqueue to retrieve
+ *
+ * This function returns a pointer to the vblank waitqueue for the CRTC.
+ * Drivers can use this to implement vblank waits using wait_event() and related
+ * functions.
+ */
+static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc)
+{
+ return &crtc->dev->vblank[drm_crtc_index(crtc)].queue;
+}
+
+#endif