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authorDave Airlie <airlied@redhat.com>2009-12-07 22:52:41 -0500
committerDave Airlie <airlied@redhat.com>2009-12-07 22:52:41 -0500
commit1bd049fa895f9c6743f38b52ce14775f5a31ea63 (patch)
treecb9163ac1c20f7fbdbde42eaab8013d0c3734aed
parent22763c5cf3690a681551162c15d34d935308c8d7 (diff)
parentb0a007dc27d8d3ff3db07b3ea997323d9330f770 (diff)
Merge branch 'drm-core-next' into drm-linus
Bring all core drm changes into 2.6.32 tree and resolve the conflict that occurs. Conflicts: drivers/gpu/drm/drm_fb_helper.c
Diffstat
-rw-r--r--drivers/gpu/drm/Makefile2
-rw-r--r--drivers/gpu/drm/drm_crtc.c173
-rw-r--r--drivers/gpu/drm/drm_crtc_helper.c2
-rw-r--r--drivers/gpu/drm/drm_dp_i2c_helper.c (renamed from drivers/gpu/drm/i915/intel_dp_i2c.c)74
-rw-r--r--drivers/gpu/drm/drm_drv.c42
-rw-r--r--drivers/gpu/drm/drm_edid.c328
-rw-r--r--drivers/gpu/drm/drm_fb_helper.c23
-rw-r--r--drivers/gpu/drm/drm_fops.c112
-rw-r--r--drivers/gpu/drm/drm_irq.c96
-rw-r--r--drivers/gpu/drm/drm_mm.c2
-rw-r--r--drivers/gpu/drm/drm_modes.c28
-rw-r--r--drivers/gpu/drm/drm_stub.c15
-rw-r--r--drivers/gpu/drm/i915/Makefile1
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c1
-rw-r--r--drivers/gpu/drm/i915/intel_display.c2
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c72
-rw-r--r--drivers/gpu/drm/ttm/Makefile3
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c5
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo_util.c1
-rw-r--r--drivers/gpu/drm/ttm/ttm_execbuf_util.c117
-rw-r--r--drivers/gpu/drm/ttm/ttm_lock.c311
-rw-r--r--drivers/gpu/drm/ttm/ttm_memory.c12
-rw-r--r--drivers/gpu/drm/ttm/ttm_object.c452
-rw-r--r--drivers/gpu/drm/ttm/ttm_tt.c1
-rw-r--r--include/drm/drm.h64
-rw-r--r--include/drm/drmP.h71
-rw-r--r--include/drm/drm_crtc.h44
-rw-r--r--include/drm/drm_dp_helper.h (renamed from drivers/gpu/drm/i915/intel_dp.h)15
-rw-r--r--include/drm/drm_edid.h8
-rw-r--r--include/drm/drm_mode.h80
-rw-r--r--include/drm/i915_drm.h4
-rw-r--r--include/drm/mga_drm.h2
-rw-r--r--include/drm/radeon_drm.h2
-rw-r--r--include/drm/ttm/ttm_bo_driver.h9
-rw-r--r--include/drm/ttm/ttm_execbuf_util.h107
-rw-r--r--include/drm/ttm/ttm_lock.h247
-rw-r--r--include/drm/ttm/ttm_memory.h1
-rw-r--r--include/drm/ttm/ttm_object.h267
-rw-r--r--include/drm/via_drm.h2
39 files changed, 2509 insertions, 289 deletions
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 3c8827a7aabd..91567ac806f1 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -15,7 +15,7 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \
15 15
16drm-$(CONFIG_COMPAT) += drm_ioc32.o 16drm-$(CONFIG_COMPAT) += drm_ioc32.o
17 17
18drm_kms_helper-y := drm_fb_helper.o drm_crtc_helper.o 18drm_kms_helper-y := drm_fb_helper.o drm_crtc_helper.o drm_dp_i2c_helper.o
19 19
20obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o 20obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
21 21
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 5cae0b3eee9b..4fe321dc900c 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -125,6 +125,15 @@ static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
125DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 125DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
126 drm_tv_subconnector_enum_list) 126 drm_tv_subconnector_enum_list)
127 127
128static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
129 { DRM_MODE_DIRTY_OFF, "Off" },
130 { DRM_MODE_DIRTY_ON, "On" },
131 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
132};
133
134DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
135 drm_dirty_info_enum_list)
136
128struct drm_conn_prop_enum_list { 137struct drm_conn_prop_enum_list {
129 int type; 138 int type;
130 char *name; 139 char *name;
@@ -802,6 +811,36 @@ int drm_mode_create_dithering_property(struct drm_device *dev)
802EXPORT_SYMBOL(drm_mode_create_dithering_property); 811EXPORT_SYMBOL(drm_mode_create_dithering_property);
803 812
804/** 813/**
814 * drm_mode_create_dirty_property - create dirty property
815 * @dev: DRM device
816 *
817 * Called by a driver the first time it's needed, must be attached to desired
818 * connectors.
819 */
820int drm_mode_create_dirty_info_property(struct drm_device *dev)
821{
822 struct drm_property *dirty_info;
823 int i;
824
825 if (dev->mode_config.dirty_info_property)
826 return 0;
827
828 dirty_info =
829 drm_property_create(dev, DRM_MODE_PROP_ENUM |
830 DRM_MODE_PROP_IMMUTABLE,
831 "dirty",
832 ARRAY_SIZE(drm_dirty_info_enum_list));
833 for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
834 drm_property_add_enum(dirty_info, i,
835 drm_dirty_info_enum_list[i].type,
836 drm_dirty_info_enum_list[i].name);
837 dev->mode_config.dirty_info_property = dirty_info;
838
839 return 0;
840}
841EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
842
843/**
805 * drm_mode_config_init - initialize DRM mode_configuration structure 844 * drm_mode_config_init - initialize DRM mode_configuration structure
806 * @dev: DRM device 845 * @dev: DRM device
807 * 846 *
@@ -1753,6 +1792,71 @@ out:
1753 return ret; 1792 return ret;
1754} 1793}
1755 1794
1795int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1796 void *data, struct drm_file *file_priv)
1797{
1798 struct drm_clip_rect __user *clips_ptr;
1799 struct drm_clip_rect *clips = NULL;
1800 struct drm_mode_fb_dirty_cmd *r = data;
1801 struct drm_mode_object *obj;
1802 struct drm_framebuffer *fb;
1803 unsigned flags;
1804 int num_clips;
1805 int ret = 0;
1806
1807 mutex_lock(&dev->mode_config.mutex);
1808 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1809 if (!obj) {
1810 DRM_ERROR("invalid framebuffer id\n");
1811 ret = -EINVAL;
1812 goto out_err1;
1813 }
1814 fb = obj_to_fb(obj);
1815
1816 num_clips = r->num_clips;
1817 clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
1818
1819 if (!num_clips != !clips_ptr) {
1820 ret = -EINVAL;
1821 goto out_err1;
1822 }
1823
1824 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
1825
1826 /* If userspace annotates copy, clips must come in pairs */
1827 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
1828 ret = -EINVAL;
1829 goto out_err1;
1830 }
1831
1832 if (num_clips && clips_ptr) {
1833 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
1834 if (!clips) {
1835 ret = -ENOMEM;
1836 goto out_err1;
1837 }
1838
1839 ret = copy_from_user(clips, clips_ptr,
1840 num_clips * sizeof(*clips));
1841 if (ret)
1842 goto out_err2;
1843 }
1844
1845 if (fb->funcs->dirty) {
1846 ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
1847 } else {
1848 ret = -ENOSYS;
1849 goto out_err2;
1850 }
1851
1852out_err2:
1853 kfree(clips);
1854out_err1:
1855 mutex_unlock(&dev->mode_config.mutex);
1856 return ret;
1857}
1858
1859
1756/** 1860/**
1757 * drm_fb_release - remove and free the FBs on this file 1861 * drm_fb_release - remove and free the FBs on this file
1758 * @filp: file * from the ioctl 1862 * @filp: file * from the ioctl
@@ -2478,3 +2582,72 @@ out:
2478 mutex_unlock(&dev->mode_config.mutex); 2582 mutex_unlock(&dev->mode_config.mutex);
2479 return ret; 2583 return ret;
2480} 2584}
2585
2586int drm_mode_page_flip_ioctl(struct drm_device *dev,
2587 void *data, struct drm_file *file_priv)
2588{
2589 struct drm_mode_crtc_page_flip *page_flip = data;
2590 struct drm_mode_object *obj;
2591 struct drm_crtc *crtc;
2592 struct drm_framebuffer *fb;
2593 struct drm_pending_vblank_event *e = NULL;
2594 unsigned long flags;
2595 int ret = -EINVAL;
2596
2597 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
2598 page_flip->reserved != 0)
2599 return -EINVAL;
2600
2601 mutex_lock(&dev->mode_config.mutex);
2602 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
2603 if (!obj)
2604 goto out;
2605 crtc = obj_to_crtc(obj);
2606
2607 if (crtc->funcs->page_flip == NULL)
2608 goto out;
2609
2610 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
2611 if (!obj)
2612 goto out;
2613 fb = obj_to_fb(obj);
2614
2615 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
2616 ret = -ENOMEM;
2617 spin_lock_irqsave(&dev->event_lock, flags);
2618 if (file_priv->event_space < sizeof e->event) {
2619 spin_unlock_irqrestore(&dev->event_lock, flags);
2620 goto out;
2621 }
2622 file_priv->event_space -= sizeof e->event;
2623 spin_unlock_irqrestore(&dev->event_lock, flags);
2624
2625 e = kzalloc(sizeof *e, GFP_KERNEL);
2626 if (e == NULL) {
2627 spin_lock_irqsave(&dev->event_lock, flags);
2628 file_priv->event_space += sizeof e->event;
2629 spin_unlock_irqrestore(&dev->event_lock, flags);
2630 goto out;
2631 }
2632
2633 e->event.base.type = DRM_EVENT_VBLANK;
2634 e->event.base.length = sizeof e->event;
2635 e->event.user_data = page_flip->user_data;
2636 e->base.event = &e->event.base;
2637 e->base.file_priv = file_priv;
2638 e->base.destroy =
2639 (void (*) (struct drm_pending_event *)) kfree;
2640 }
2641
2642 ret = crtc->funcs->page_flip(crtc, fb, e);
2643 if (ret) {
2644 spin_lock_irqsave(&dev->event_lock, flags);
2645 file_priv->event_space += sizeof e->event;
2646 spin_unlock_irqrestore(&dev->event_lock, flags);
2647 kfree(e);
2648 }
2649
2650out:
2651 mutex_unlock(&dev->mode_config.mutex);
2652 return ret;
2653}
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index bbfd110a7168..3963b3c1081a 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -109,7 +109,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
109 109
110 count = (*connector_funcs->get_modes)(connector); 110 count = (*connector_funcs->get_modes)(connector);
111 if (!count) { 111 if (!count) {
112 count = drm_add_modes_noedid(connector, 800, 600); 112 count = drm_add_modes_noedid(connector, 1024, 768);
113 if (!count) 113 if (!count)
114 return 0; 114 return 0;
115 } 115 }
diff --git a/drivers/gpu/drm/i915/intel_dp_i2c.c b/drivers/gpu/drm/drm_dp_i2c_helper.c
index a63b6f57d2d4..f1c7c856e9db 100644
--- a/drivers/gpu/drm/i915/intel_dp_i2c.c
+++ b/drivers/gpu/drm/drm_dp_i2c_helper.c
@@ -28,84 +28,20 @@
28#include <linux/errno.h> 28#include <linux/errno.h>
29#include <linux/sched.h> 29#include <linux/sched.h>
30#include <linux/i2c.h> 30#include <linux/i2c.h>
31#include "intel_dp.h" 31#include "drm_dp_helper.h"
32#include "drmP.h" 32#include "drmP.h"
33 33
34/* Run a single AUX_CH I2C transaction, writing/reading data as necessary */ 34/* Run a single AUX_CH I2C transaction, writing/reading data as necessary */
35
36#define MODE_I2C_START 1
37#define MODE_I2C_WRITE 2
38#define MODE_I2C_READ 4
39#define MODE_I2C_STOP 8
40
41static int 35static int
42i2c_algo_dp_aux_transaction(struct i2c_adapter *adapter, int mode, 36i2c_algo_dp_aux_transaction(struct i2c_adapter *adapter, int mode,
43 uint8_t write_byte, uint8_t *read_byte) 37 uint8_t write_byte, uint8_t *read_byte)
44{ 38{
45 struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; 39 struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
46 uint16_t address = algo_data->address;
47 uint8_t msg[5];
48 uint8_t reply[2];
49 int msg_bytes;
50 int reply_bytes;
51 int ret; 40 int ret;
52 41
53 /* Set up the command byte */ 42 ret = (*algo_data->aux_ch)(adapter, mode,
54 if (mode & MODE_I2C_READ) 43 write_byte, read_byte);
55 msg[0] = AUX_I2C_READ << 4; 44 return ret;
56 else
57 msg[0] = AUX_I2C_WRITE << 4;
58
59 if (!(mode & MODE_I2C_STOP))
60 msg[0] |= AUX_I2C_MOT << 4;
61
62 msg[1] = address >> 8;
63 msg[2] = address;
64
65 switch (mode) {
66 case MODE_I2C_WRITE:
67 msg[3] = 0;
68 msg[4] = write_byte;
69 msg_bytes = 5;
70 reply_bytes = 1;
71 break;
72 case MODE_I2C_READ:
73 msg[3] = 0;
74 msg_bytes = 4;
75 reply_bytes = 2;
76 break;
77 default:
78 msg_bytes = 3;
79 reply_bytes = 1;
80 break;
81 }
82
83 for (;;) {
84 ret = (*algo_data->aux_ch)(adapter,
85 msg, msg_bytes,
86 reply, reply_bytes);
87 if (ret < 0) {
88 DRM_DEBUG("aux_ch failed %d\n", ret);
89 return ret;
90 }
91 switch (reply[0] & AUX_I2C_REPLY_MASK) {
92 case AUX_I2C_REPLY_ACK:
93 if (mode == MODE_I2C_READ) {
94 *read_byte = reply[1];
95 }
96 return reply_bytes - 1;
97 case AUX_I2C_REPLY_NACK:
98 DRM_DEBUG("aux_ch nack\n");
99 return -EREMOTEIO;
100 case AUX_I2C_REPLY_DEFER:
101 DRM_DEBUG("aux_ch defer\n");
102 udelay(100);
103 break;
104 default:
105 DRM_ERROR("aux_ch invalid reply 0x%02x\n", reply[0]);
106 return -EREMOTEIO;
107 }
108 }
109} 45}
110 46
111/* 47/*
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index a75ca63deea6..ff2f1042cb44 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -145,6 +145,8 @@ static struct drm_ioctl_desc drm_ioctls[] = {
145 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW), 145 DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW),
146 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW), 146 DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW),
147 DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW), 147 DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW),
148 DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
149 DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW)
148}; 150};
149 151
150#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) 152#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
@@ -366,6 +368,29 @@ module_init(drm_core_init);
366module_exit(drm_core_exit); 368module_exit(drm_core_exit);
367 369
368/** 370/**
371 * Copy and IOCTL return string to user space
372 */
373static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
374{
375 int len;
376
377 /* don't overflow userbuf */
378 len = strlen(value);
379 if (len > *buf_len)
380 len = *buf_len;
381
382 /* let userspace know exact length of driver value (which could be
383 * larger than the userspace-supplied buffer) */
384 *buf_len = strlen(value);
385
386 /* finally, try filling in the userbuf */
387 if (len && buf)
388 if (copy_to_user(buf, value, len))
389 return -EFAULT;
390 return 0;
391}
392
393/**
369 * Get version information 394 * Get version information
370 * 395 *
371 * \param inode device inode. 396 * \param inode device inode.
@@ -380,16 +405,21 @@ static int drm_version(struct drm_device *dev, void *data,
380 struct drm_file *file_priv) 405 struct drm_file *file_priv)
381{ 406{
382 struct drm_version *version = data; 407 struct drm_version *version = data;
383 int len; 408 int err;
384 409
385 version->version_major = dev->driver->major; 410 version->version_major = dev->driver->major;
386 version->version_minor = dev->driver->minor; 411 version->version_minor = dev->driver->minor;
387 version->version_patchlevel = dev->driver->patchlevel; 412 version->version_patchlevel = dev->driver->patchlevel;
388 DRM_COPY(version->name, dev->driver->name); 413 err = drm_copy_field(version->name, &version->name_len,
389 DRM_COPY(version->date, dev->driver->date); 414 dev->driver->name);
390 DRM_COPY(version->desc, dev->driver->desc); 415 if (!err)
391 416 err = drm_copy_field(version->date, &version->date_len,
392 return 0; 417 dev->driver->date);
418 if (!err)
419 err = drm_copy_field(version->desc, &version->desc_len,
420 dev->driver->desc);
421
422 return err;
393} 423}
394 424
395/** 425/**
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index b54ba63d506e..c39b26f1abed 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -123,18 +123,20 @@ static const u8 edid_header[] = {
123 */ 123 */
124static bool edid_is_valid(struct edid *edid) 124static bool edid_is_valid(struct edid *edid)
125{ 125{
126 int i; 126 int i, score = 0;
127 u8 csum = 0; 127 u8 csum = 0;
128 u8 *raw_edid = (u8 *)edid; 128 u8 *raw_edid = (u8 *)edid;
129 129
130 if (memcmp(edid->header, edid_header, sizeof(edid_header))) 130 for (i = 0; i < sizeof(edid_header); i++)
131 goto bad; 131 if (raw_edid[i] == edid_header[i])
132 if (edid->version != 1) { 132 score++;
133 DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version); 133
134 if (score == 8) ;
135 else if (score >= 6) {
136 DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
137 memcpy(raw_edid, edid_header, sizeof(edid_header));
138 } else
134 goto bad; 139 goto bad;
135 }
136 if (edid->revision > 4)
137 DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
138 140
139 for (i = 0; i < EDID_LENGTH; i++) 141 for (i = 0; i < EDID_LENGTH; i++)
140 csum += raw_edid[i]; 142 csum += raw_edid[i];
@@ -143,6 +145,14 @@ static bool edid_is_valid(struct edid *edid)
143 goto bad; 145 goto bad;
144 } 146 }
145 147
148 if (edid->version != 1) {
149 DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
150 goto bad;
151 }
152
153 if (edid->revision > 4)
154 DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
155
146 return 1; 156 return 1;
147 157
148bad: 158bad:
@@ -481,16 +491,17 @@ static struct drm_display_mode drm_dmt_modes[] = {
481 3048, 3536, 0, 1600, 1603, 1609, 1682, 0, 491 3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
482 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 492 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
483}; 493};
494static const int drm_num_dmt_modes =
495 sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
484 496
485static struct drm_display_mode *drm_find_dmt(struct drm_device *dev, 497static struct drm_display_mode *drm_find_dmt(struct drm_device *dev,
486 int hsize, int vsize, int fresh) 498 int hsize, int vsize, int fresh)
487{ 499{
488 int i, count; 500 int i;
489 struct drm_display_mode *ptr, *mode; 501 struct drm_display_mode *ptr, *mode;
490 502
491 count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
492 mode = NULL; 503 mode = NULL;
493 for (i = 0; i < count; i++) { 504 for (i = 0; i < drm_num_dmt_modes; i++) {
494 ptr = &drm_dmt_modes[i]; 505 ptr = &drm_dmt_modes[i];
495 if (hsize == ptr->hdisplay && 506 if (hsize == ptr->hdisplay &&
496 vsize == ptr->vdisplay && 507 vsize == ptr->vdisplay &&
@@ -834,8 +845,165 @@ static int add_standard_modes(struct drm_connector *connector, struct edid *edid
834 return modes; 845 return modes;
835} 846}
836 847
848/*
849 * XXX fix this for:
850 * - GTF secondary curve formula
851 * - EDID 1.4 range offsets
852 * - CVT extended bits
853 */
854static bool
855mode_in_range(struct drm_display_mode *mode, struct detailed_timing *timing)
856{
857 struct detailed_data_monitor_range *range;
858 int hsync, vrefresh;
859
860 range = &timing->data.other_data.data.range;
861
862 hsync = drm_mode_hsync(mode);
863 vrefresh = drm_mode_vrefresh(mode);
864
865 if (hsync < range->min_hfreq_khz || hsync > range->max_hfreq_khz)
866 return false;
867
868 if (vrefresh < range->min_vfreq || vrefresh > range->max_vfreq)
869 return false;
870
871 if (range->pixel_clock_mhz && range->pixel_clock_mhz != 0xff) {
872 /* be forgiving since it's in units of 10MHz */
873 int max_clock = range->pixel_clock_mhz * 10 + 9;
874 max_clock *= 1000;
875 if (mode->clock > max_clock)
876 return false;
877 }
878
879 return true;
880}
881
882/*
883 * XXX If drm_dmt_modes ever regrows the CVT-R modes (and it will) this will
884 * need to account for them.
885 */
886static int drm_gtf_modes_for_range(struct drm_connector *connector,
887 struct detailed_timing *timing)
888{
889 int i, modes = 0;
890 struct drm_display_mode *newmode;
891 struct drm_device *dev = connector->dev;
892
893 for (i = 0; i < drm_num_dmt_modes; i++) {
894 if (mode_in_range(drm_dmt_modes + i, timing)) {
895 newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
896 if (newmode) {
897 drm_mode_probed_add(connector, newmode);
898 modes++;
899 }
900 }
901 }
902
903 return modes;
904}
905
906static int drm_cvt_modes(struct drm_connector *connector,
907 struct detailed_timing *timing)
908{
909 int i, j, modes = 0;
910 struct drm_display_mode *newmode;
911 struct drm_device *dev = connector->dev;
912 struct cvt_timing *cvt;
913 const int rates[] = { 60, 85, 75, 60, 50 };
914
915 for (i = 0; i < 4; i++) {
916 int width, height;
917 cvt = &(timing->data.other_data.data.cvt[i]);
918
919 height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 8) + 1) * 2;
920 switch (cvt->code[1] & 0xc0) {
921 case 0x00:
922 width = height * 4 / 3;
923 break;
924 case 0x40:
925 width = height * 16 / 9;
926 break;
927 case 0x80:
928 width = height * 16 / 10;
929 break;
930 case 0xc0:
931 width = height * 15 / 9;
932 break;
933 }
934
935 for (j = 1; j < 5; j++) {
936 if (cvt->code[2] & (1 << j)) {
937 newmode = drm_cvt_mode(dev, width, height,
938 rates[j], j == 0,
939 false, false);
940 if (newmode) {
941 drm_mode_probed_add(connector, newmode);
942 modes++;
943 }
944 }
945 }
946 }
947
948 return modes;
949}
950
951static int add_detailed_modes(struct drm_connector *connector,
952 struct detailed_timing *timing,
953 struct edid *edid, u32 quirks, int preferred)
954{
955 int i, modes = 0;
956 struct detailed_non_pixel *data = &timing->data.other_data;
957 int timing_level = standard_timing_level(edid);
958 int gtf = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF);
959 struct drm_display_mode *newmode;
960 struct drm_device *dev = connector->dev;
961
962 if (timing->pixel_clock) {
963 newmode = drm_mode_detailed(dev, edid, timing, quirks);
964 if (!newmode)
965 return 0;
966
967 if (preferred)
968 newmode->type |= DRM_MODE_TYPE_PREFERRED;
969
970 drm_mode_probed_add(connector, newmode);
971 return 1;
972 }
973
974 /* other timing types */
975 switch (data->type) {
976 case EDID_DETAIL_MONITOR_RANGE:
977 if (gtf)
978 modes += drm_gtf_modes_for_range(connector, timing);
979 break;
980 case EDID_DETAIL_STD_MODES:
981 /* Six modes per detailed section */
982 for (i = 0; i < 6; i++) {
983 struct std_timing *std;
984 struct drm_display_mode *newmode;
985
986 std = &data->data.timings[i];
987 newmode = drm_mode_std(dev, std, edid->revision,
988 timing_level);
989 if (newmode) {
990 drm_mode_probed_add(connector, newmode);
991 modes++;
992 }
993 }
994 break;
995 case EDID_DETAIL_CVT_3BYTE:
996 modes += drm_cvt_modes(connector, timing);
997 break;
998 default:
999 break;
1000 }
1001
1002 return modes;
1003}
1004
837/** 1005/**
838 * add_detailed_modes - get detailed mode info from EDID data 1006 * add_detailed_info - get detailed mode info from EDID data
839 * @connector: attached connector 1007 * @connector: attached connector
840 * @edid: EDID block to scan 1008 * @edid: EDID block to scan
841 * @quirks: quirks to apply 1009 * @quirks: quirks to apply
@@ -846,67 +1014,24 @@ static int add_standard_modes(struct drm_connector *connector, struct edid *edid
846static int add_detailed_info(struct drm_connector *connector, 1014static int add_detailed_info(struct drm_connector *connector,
847 struct edid *edid, u32 quirks) 1015 struct edid *edid, u32 quirks)
848{ 1016{
849 struct drm_device *dev = connector->dev; 1017 int i, modes = 0;
850 int i, j, modes = 0;
851 int timing_level;
852
853 timing_level = standard_timing_level(edid);
854 1018
855 for (i = 0; i < EDID_DETAILED_TIMINGS; i++) { 1019 for (i = 0; i < EDID_DETAILED_TIMINGS; i++) {
856 struct detailed_timing *timing = &edid->detailed_timings[i]; 1020 struct detailed_timing *timing = &edid->detailed_timings[i];
857 struct detailed_non_pixel *data = &timing->data.other_data; 1021 int preferred = (i == 0) && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
858 struct drm_display_mode *newmode;
859
860 /* X server check is version 1.1 or higher */
861 if (edid->version == 1 && edid->revision >= 1 &&
862 !timing->pixel_clock) {
863 /* Other timing or info */
864 switch (data->type) {
865 case EDID_DETAIL_MONITOR_SERIAL:
866 break;
867 case EDID_DETAIL_MONITOR_STRING:
868 break;
869 case EDID_DETAIL_MONITOR_RANGE:
870 /* Get monitor range data */
871 break;
872 case EDID_DETAIL_MONITOR_NAME:
873 break;
874 case EDID_DETAIL_MONITOR_CPDATA:
875 break;
876 case EDID_DETAIL_STD_MODES:
877 for (j = 0; j < 6; i++) {
878 struct std_timing *std;
879 struct drm_display_mode *newmode;
880
881 std = &data->data.timings[j];
882 newmode = drm_mode_std(dev, std,
883 edid->revision,
884 timing_level);
885 if (newmode) {
886 drm_mode_probed_add(connector, newmode);
887 modes++;
888 }
889 }
890 break;
891 default:
892 break;
893 }
894 } else {
895 newmode = drm_mode_detailed(dev, edid, timing, quirks);
896 if (!newmode)
897 continue;
898 1022
899 /* First detailed mode is preferred */ 1023 /* In 1.0, only timings are allowed */
900 if (i == 0 && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING)) 1024 if (!timing->pixel_clock && edid->version == 1 &&
901 newmode->type |= DRM_MODE_TYPE_PREFERRED; 1025 edid->revision == 0)
902 drm_mode_probed_add(connector, newmode); 1026 continue;
903 1027
904 modes++; 1028 modes += add_detailed_modes(connector, timing, edid, quirks,
905 } 1029 preferred);
906 } 1030 }
907 1031
908 return modes; 1032 return modes;
909} 1033}
1034
910/** 1035/**
911 * add_detailed_mode_eedid - get detailed mode info from addtional timing 1036 * add_detailed_mode_eedid - get detailed mode info from addtional timing
912 * EDID block 1037 * EDID block
@@ -920,12 +1045,9 @@ static int add_detailed_info(struct drm_connector *connector,
920static int add_detailed_info_eedid(struct drm_connector *connector, 1045static int add_detailed_info_eedid(struct drm_connector *connector,
921 struct edid *edid, u32 quirks) 1046 struct edid *edid, u32 quirks)
922{ 1047{
923 struct drm_device *dev = connector->dev; 1048 int i, modes = 0;
924 int i, j, modes = 0;
925 char *edid_ext = NULL; 1049 char *edid_ext = NULL;
926 struct detailed_timing *timing; 1050 struct detailed_timing *timing;
927 struct detailed_non_pixel *data;
928 struct drm_display_mode *newmode;
929 int edid_ext_num; 1051 int edid_ext_num;
930 int start_offset, end_offset; 1052 int start_offset, end_offset;
931 int timing_level; 1053 int timing_level;
@@ -976,51 +1098,7 @@ static int add_detailed_info_eedid(struct drm_connector *connector,
976 for (i = start_offset; i < end_offset; 1098 for (i = start_offset; i < end_offset;
977 i += sizeof(struct detailed_timing)) { 1099 i += sizeof(struct detailed_timing)) {
978 timing = (struct detailed_timing *)(edid_ext + i); 1100 timing = (struct detailed_timing *)(edid_ext + i);
979 data = &timing->data.other_data; 1101 modes += add_detailed_modes(connector, timing, edid, quirks, 0);
980 /* Detailed mode timing */
981 if (timing->pixel_clock) {
982 newmode = drm_mode_detailed(dev, edid, timing, quirks);
983 if (!newmode)
984 continue;
985
986 drm_mode_probed_add(connector, newmode);
987
988 modes++;
989 continue;
990 }
991
992 /* Other timing or info */
993 switch (data->type) {
994 case EDID_DETAIL_MONITOR_SERIAL:
995 break;
996 case EDID_DETAIL_MONITOR_STRING:
997 break;
998 case EDID_DETAIL_MONITOR_RANGE:
999 /* Get monitor range data */
1000 break;
1001 case EDID_DETAIL_MONITOR_NAME:
1002 break;
1003 case EDID_DETAIL_MONITOR_CPDATA:
1004 break;
1005 case EDID_DETAIL_STD_MODES:
1006 /* Five modes per detailed section */
1007 for (j = 0; j < 5; i++) {
1008 struct std_timing *std;
1009 struct drm_display_mode *newmode;
1010
1011 std = &data->data.timings[j];
1012 newmode = drm_mode_std(dev, std,
1013 edid->revision,
1014 timing_level);
1015 if (newmode) {
1016 drm_mode_probed_add(connector, newmode);
1017 modes++;
1018 }
1019 }
1020 break;
1021 default:
1022 break;
1023 }
1024 } 1102 }
1025 1103
1026 return modes; 1104 return modes;
@@ -1066,19 +1144,19 @@ static int drm_ddc_read_edid(struct drm_connector *connector,
1066 struct i2c_adapter *adapter, 1144 struct i2c_adapter *adapter,
1067 char *buf, int len) 1145 char *buf, int len)
1068{ 1146{
1069 int ret; 1147 int i;
1070 1148
1071 ret = drm_do_probe_ddc_edid(adapter, buf, len); 1149 for (i = 0; i < 4; i++) {
1072 if (ret != 0) { 1150 if (drm_do_probe_ddc_edid(adapter, buf, len))
1073 goto end; 1151 return -1;
1074 } 1152 if (edid_is_valid((struct edid *)buf))
1075 if (!edid_is_valid((struct edid *)buf)) { 1153 return 0;
1076 dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
1077 drm_get_connector_name(connector));
1078 ret = -1;
1079 } 1154 }
1080end: 1155
1081 return ret; 1156 /* repeated checksum failures; warn, but carry on */
1157 dev_warn(&connector->dev->pdev->dev, "%s: EDID invalid.\n",
1158 drm_get_connector_name(connector));
1159 return -1;
1082} 1160}
1083 1161
1084/** 1162/**
@@ -1296,6 +1374,8 @@ int drm_add_modes_noedid(struct drm_connector *connector,
1296 ptr->vdisplay > vdisplay) 1374 ptr->vdisplay > vdisplay)
1297 continue; 1375 continue;
1298 } 1376 }
1377 if (drm_mode_vrefresh(ptr) > 61)
1378 continue;
1299 mode = drm_mode_duplicate(dev, ptr); 1379 mode = drm_mode_duplicate(dev, ptr);
1300 if (mode) { 1380 if (mode) {
1301 drm_mode_probed_add(connector, mode); 1381 drm_mode_probed_add(connector, mode);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 65ef011fa8ba..1b49fa055f4f 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -373,11 +373,9 @@ static void drm_fb_helper_off(struct fb_info *info, int dpms_mode)
373 mutex_unlock(&dev->mode_config.mutex); 373 mutex_unlock(&dev->mode_config.mutex);
374 } 374 }
375 } 375 }
376 if (dpms_mode == DRM_MODE_DPMS_OFF) { 376 mutex_lock(&dev->mode_config.mutex);
377 mutex_lock(&dev->mode_config.mutex); 377 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
378 crtc_funcs->dpms(crtc, dpms_mode); 378 mutex_unlock(&dev->mode_config.mutex);
379 mutex_unlock(&dev->mode_config.mutex);
380 }
381 } 379 }
382 } 380 }
383} 381}
@@ -385,18 +383,23 @@ static void drm_fb_helper_off(struct fb_info *info, int dpms_mode)
385int drm_fb_helper_blank(int blank, struct fb_info *info) 383int drm_fb_helper_blank(int blank, struct fb_info *info)
386{ 384{
387 switch (blank) { 385 switch (blank) {
386 /* Display: On; HSync: On, VSync: On */
388 case FB_BLANK_UNBLANK: 387 case FB_BLANK_UNBLANK:
389 drm_fb_helper_on(info); 388 drm_fb_helper_on(info);
390 break; 389 break;
390 /* Display: Off; HSync: On, VSync: On */
391 case FB_BLANK_NORMAL: 391 case FB_BLANK_NORMAL:
392 drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY); 392 drm_fb_helper_off(info, DRM_MODE_DPMS_ON);
393 break; 393 break;
394 /* Display: Off; HSync: Off, VSync: On */
394 case FB_BLANK_HSYNC_SUSPEND: 395 case FB_BLANK_HSYNC_SUSPEND:
395 drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY); 396 drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY);
396 break; 397 break;
398 /* Display: Off; HSync: On, VSync: Off */
397 case FB_BLANK_VSYNC_SUSPEND: 399 case FB_BLANK_VSYNC_SUSPEND:
398 drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND); 400 drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND);
399 break; 401 break;
402 /* Display: Off; HSync: Off, VSync: Off */
400 case FB_BLANK_POWERDOWN: 403 case FB_BLANK_POWERDOWN:
401 drm_fb_helper_off(info, DRM_MODE_DPMS_OFF); 404 drm_fb_helper_off(info, DRM_MODE_DPMS_OFF);
402 break; 405 break;
@@ -905,8 +908,13 @@ int drm_fb_helper_single_fb_probe(struct drm_device *dev,
905 908
906 if (new_fb) { 909 if (new_fb) {
907 info->var.pixclock = 0; 910 info->var.pixclock = 0;
908 if (register_framebuffer(info) < 0) 911 ret = fb_alloc_cmap(&info->cmap, modeset->crtc->gamma_size, 0);
912 if (ret)
913 return ret;
914 if (register_framebuffer(info) < 0) {
915 fb_dealloc_cmap(&info->cmap);
909 return -EINVAL; 916 return -EINVAL;
917 }
910 } else { 918 } else {
911 drm_fb_helper_set_par(info); 919 drm_fb_helper_set_par(info);
912 } 920 }
@@ -936,6 +944,7 @@ void drm_fb_helper_free(struct drm_fb_helper *helper)
936 unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op); 944 unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
937 } 945 }
938 drm_fb_helper_crtc_free(helper); 946 drm_fb_helper_crtc_free(helper);
947 fb_dealloc_cmap(&helper->fb->fbdev->cmap);
939} 948}
940EXPORT_SYMBOL(drm_fb_helper_free); 949EXPORT_SYMBOL(drm_fb_helper_free);
941 950
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 251bc0e3b5ec..08d14df3bb42 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -257,6 +257,9 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
257 257
258 INIT_LIST_HEAD(&priv->lhead); 258 INIT_LIST_HEAD(&priv->lhead);
259 INIT_LIST_HEAD(&priv->fbs); 259 INIT_LIST_HEAD(&priv->fbs);
260 INIT_LIST_HEAD(&priv->event_list);
261 init_waitqueue_head(&priv->event_wait);
262 priv->event_space = 4096; /* set aside 4k for event buffer */
260 263
261 if (dev->driver->driver_features & DRIVER_GEM) 264 if (dev->driver->driver_features & DRIVER_GEM)
262 drm_gem_open(dev, priv); 265 drm_gem_open(dev, priv);
@@ -297,6 +300,18 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
297 goto out_free; 300 goto out_free;
298 } 301 }
299 } 302 }
303 mutex_lock(&dev->struct_mutex);
304 if (dev->driver->master_set) {
305 ret = dev->driver->master_set(dev, priv, true);
306 if (ret) {
307 /* drop both references if this fails */
308 drm_master_put(&priv->minor->master);
309 drm_master_put(&priv->master);
310 mutex_unlock(&dev->struct_mutex);
311 goto out_free;
312 }
313 }
314 mutex_unlock(&dev->struct_mutex);
300 } else { 315 } else {
301 /* get a reference to the master */ 316 /* get a reference to the master */
302 priv->master = drm_master_get(priv->minor->master); 317 priv->master = drm_master_get(priv->minor->master);
@@ -413,6 +428,30 @@ static void drm_master_release(struct drm_device *dev, struct file *filp)
413 } 428 }
414} 429}
415 430
431static void drm_events_release(struct drm_file *file_priv)
432{
433 struct drm_device *dev = file_priv->minor->dev;
434 struct drm_pending_event *e, *et;
435 struct drm_pending_vblank_event *v, *vt;
436 unsigned long flags;
437
438 spin_lock_irqsave(&dev->event_lock, flags);
439
440 /* Remove pending flips */
441 list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)
442 if (v->base.file_priv == file_priv) {
443 list_del(&v->base.link);
444 drm_vblank_put(dev, v->pipe);
445 v->base.destroy(&v->base);
446 }
447
448 /* Remove unconsumed events */
449 list_for_each_entry_safe(e, et, &file_priv->event_list, link)
450 e->destroy(e);
451
452 spin_unlock_irqrestore(&dev->event_lock, flags);
453}
454
416/** 455/**
417 * Release file. 456 * Release file.
418 * 457 *
@@ -451,6 +490,8 @@ int drm_release(struct inode *inode, struct file *filp)
451 if (file_priv->minor->master) 490 if (file_priv->minor->master)
452 drm_master_release(dev, filp); 491 drm_master_release(dev, filp);
453 492
493 drm_events_release(file_priv);
494
454 if (dev->driver->driver_features & DRIVER_GEM) 495 if (dev->driver->driver_features & DRIVER_GEM)
455 drm_gem_release(dev, file_priv); 496 drm_gem_release(dev, file_priv);
456 497
@@ -504,6 +545,8 @@ int drm_release(struct inode *inode, struct file *filp)
504 545
505 if (file_priv->minor->master == file_priv->master) { 546 if (file_priv->minor->master == file_priv->master) {
506 /* drop the reference held my the minor */ 547 /* drop the reference held my the minor */
548 if (dev->driver->master_drop)
549 dev->driver->master_drop(dev, file_priv, true);
507 drm_master_put(&file_priv->minor->master); 550 drm_master_put(&file_priv->minor->master);
508 } 551 }
509 } 552 }
@@ -544,9 +587,74 @@ int drm_release(struct inode *inode, struct file *filp)
544} 587}
545EXPORT_SYMBOL(drm_release); 588EXPORT_SYMBOL(drm_release);
546 589
547/** No-op. */ 590static bool
591drm_dequeue_event(struct drm_file *file_priv,
592 size_t total, size_t max, struct drm_pending_event **out)
593{
594 struct drm_device *dev = file_priv->minor->dev;
595 struct drm_pending_event *e;
596 unsigned long flags;
597 bool ret = false;
598
599 spin_lock_irqsave(&dev->event_lock, flags);
600
601 *out = NULL;
602 if (list_empty(&file_priv->event_list))
603 goto out;
604 e = list_first_entry(&file_priv->event_list,
605 struct drm_pending_event, link);
606 if (e->event->length + total > max)
607 goto out;
608
609 file_priv->event_space += e->event->length;
610 list_del(&e->link);
611 *out = e;
612 ret = true;
613
614out:
615 spin_unlock_irqrestore(&dev->event_lock, flags);
616 return ret;
617}
618
619ssize_t drm_read(struct file *filp, char __user *buffer,
620 size_t count, loff_t *offset)
621{
622 struct drm_file *file_priv = filp->private_data;
623 struct drm_pending_event *e;
624 size_t total;
625 ssize_t ret;
626
627 ret = wait_event_interruptible(file_priv->event_wait,
628 !list_empty(&file_priv->event_list));
629 if (ret < 0)
630 return ret;
631
632 total = 0;
633 while (drm_dequeue_event(file_priv, total, count, &e)) {
634 if (copy_to_user(buffer + total,
635 e->event, e->event->length)) {
636 total = -EFAULT;
637 break;
638 }
639
640 total += e->event->length;
641 e->destroy(e);
642 }
643
644 return total;
645}
646EXPORT_SYMBOL(drm_read);
647
548unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait) 648unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
549{ 649{
550 return 0; 650 struct drm_file *file_priv = filp->private_data;
651 unsigned int mask = 0;
652
653 poll_wait(filp, &file_priv->event_wait, wait);
654
655 if (!list_empty(&file_priv->event_list))
656 mask |= POLLIN | POLLRDNORM;
657
658 return mask;
551} 659}
552EXPORT_SYMBOL(drm_poll); 660EXPORT_SYMBOL(drm_poll);
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 0a6f0b3bdc78..6b3ce6d38848 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -550,6 +550,63 @@ out:
550 return ret; 550 return ret;
551} 551}
552 552
553static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
554 union drm_wait_vblank *vblwait,
555 struct drm_file *file_priv)
556{
557 struct drm_pending_vblank_event *e;
558 struct timeval now;
559 unsigned long flags;
560 unsigned int seq;
561
562 e = kzalloc(sizeof *e, GFP_KERNEL);
563 if (e == NULL)
564 return -ENOMEM;
565
566 e->pipe = pipe;
567 e->event.base.type = DRM_EVENT_VBLANK;
568 e->event.base.length = sizeof e->event;
569 e->event.user_data = vblwait->request.signal;
570 e->base.event = &e->event.base;
571 e->base.file_priv = file_priv;
572 e->base.destroy = (void (*) (struct drm_pending_event *)) kfree;
573
574 do_gettimeofday(&now);
575 spin_lock_irqsave(&dev->event_lock, flags);
576
577 if (file_priv->event_space < sizeof e->event) {
578 spin_unlock_irqrestore(&dev->event_lock, flags);
579 kfree(e);
580 return -ENOMEM;
581 }
582
583 file_priv->event_space -= sizeof e->event;
584 seq = drm_vblank_count(dev, pipe);
585 if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) &&
586 (seq - vblwait->request.sequence) <= (1 << 23)) {
587 vblwait->request.sequence = seq + 1;
588 vblwait->reply.sequence = vblwait->request.sequence;
589 }
590
591 DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n",
592 vblwait->request.sequence, seq, pipe);
593
594 e->event.sequence = vblwait->request.sequence;
595 if ((seq - vblwait->request.sequence) <= (1 << 23)) {
596 e->event.tv_sec = now.tv_sec;
597 e->event.tv_usec = now.tv_usec;
598 drm_vblank_put(dev, e->pipe);
599 list_add_tail(&e->base.link, &e->base.file_priv->event_list);
600 wake_up_interruptible(&e->base.file_priv->event_wait);
601 } else {
602 list_add_tail(&e->base.link, &dev->vblank_event_list);
603 }
604
605 spin_unlock_irqrestore(&dev->event_lock, flags);
606
607 return 0;
608}
609
553/** 610/**
554 * Wait for VBLANK. 611 * Wait for VBLANK.
555 * 612 *
@@ -609,6 +666,9 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
609 goto done; 666 goto done;
610 } 667 }
611 668
669 if (flags & _DRM_VBLANK_EVENT)
670 return drm_queue_vblank_event(dev, crtc, vblwait, file_priv);
671
612 if ((flags & _DRM_VBLANK_NEXTONMISS) && 672 if ((flags & _DRM_VBLANK_NEXTONMISS) &&
613 (seq - vblwait->request.sequence) <= (1<<23)) { 673 (seq - vblwait->request.sequence) <= (1<<23)) {
614 vblwait->request.sequence = seq + 1; 674 vblwait->request.sequence = seq + 1;
@@ -641,6 +701,38 @@ done:
641 return ret; 701 return ret;
642} 702}
643 703
704void drm_handle_vblank_events(struct drm_device *dev, int crtc)
705{
706 struct drm_pending_vblank_event *e, *t;
707 struct timeval now;
708 unsigned long flags;
709 unsigned int seq;
710
711 do_gettimeofday(&now);
712 seq = drm_vblank_count(dev, crtc);
713
714 spin_lock_irqsave(&dev->event_lock, flags);
715
716 list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) {
717 if (e->pipe != crtc)
718 continue;
719 if ((seq - e->event.sequence) > (1<<23))
720 continue;
721
722 DRM_DEBUG("vblank event on %d, current %d\n",
723 e->event.sequence, seq);
724
725 e->event.sequence = seq;
726 e->event.tv_sec = now.tv_sec;
727 e->event.tv_usec = now.tv_usec;
728 drm_vblank_put(dev, e->pipe);
729 list_move_tail(&e->base.link, &e->base.file_priv->event_list);
730 wake_up_interruptible(&e->base.file_priv->event_wait);
731 }
732
733 spin_unlock_irqrestore(&dev->event_lock, flags);
734}
735
644/** 736/**
645 * drm_handle_vblank - handle a vblank event 737 * drm_handle_vblank - handle a vblank event
646 * @dev: DRM device 738 * @dev: DRM device
@@ -651,7 +743,11 @@ done:
651 */ 743 */
652void drm_handle_vblank(struct drm_device *dev, int crtc) 744void drm_handle_vblank(struct drm_device *dev, int crtc)
653{ 745{
746 if (!dev->num_crtcs)
747 return;
748
654 atomic_inc(&dev->_vblank_count[crtc]); 749 atomic_inc(&dev->_vblank_count[crtc]);
655 DRM_WAKEUP(&dev->vbl_queue[crtc]); 750 DRM_WAKEUP(&dev->vbl_queue[crtc]);
751 drm_handle_vblank_events(dev, crtc);
656} 752}
657EXPORT_SYMBOL(drm_handle_vblank); 753EXPORT_SYMBOL(drm_handle_vblank);
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 97dc5a4f0de4..1f0d717dbad6 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -395,7 +395,7 @@ int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
395 else 395 else
396 total_used += entry->size; 396 total_used += entry->size;
397 } 397 }
398 seq_printf(m, "total: %d, used %d free %d\n", total, total_free, total_used); 398 seq_printf(m, "total: %d, used %d free %d\n", total, total_used, total_free);
399 return 0; 399 return 0;
400} 400}
401EXPORT_SYMBOL(drm_mm_dump_table); 401EXPORT_SYMBOL(drm_mm_dump_table);
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 51f677215f1d..6d81a02463a3 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -553,6 +553,32 @@ int drm_mode_height(struct drm_display_mode *mode)
553} 553}
554EXPORT_SYMBOL(drm_mode_height); 554EXPORT_SYMBOL(drm_mode_height);
555 555
556/** drm_mode_hsync - get the hsync of a mode
557 * @mode: mode
558 *
559 * LOCKING:
560 * None.
561 *
562 * Return @modes's hsync rate in kHz, rounded to the nearest int.
563 */
564int drm_mode_hsync(struct drm_display_mode *mode)
565{
566 unsigned int calc_val;
567
568 if (mode->hsync)
569 return mode->hsync;
570
571 if (mode->htotal < 0)
572 return 0;
573
574 calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
575 calc_val += 500; /* round to 1000Hz */
576 calc_val /= 1000; /* truncate to kHz */
577
578 return calc_val;
579}
580EXPORT_SYMBOL(drm_mode_hsync);
581
556/** 582/**
557 * drm_mode_vrefresh - get the vrefresh of a mode 583 * drm_mode_vrefresh - get the vrefresh of a mode
558 * @mode: mode 584 * @mode: mode
@@ -560,7 +586,7 @@ EXPORT_SYMBOL(drm_mode_height);
560 * LOCKING: 586 * LOCKING:
561 * None. 587 * None.
562 * 588 *
563 * Return @mode's vrefresh rate or calculate it if necessary. 589 * Return @mode's vrefresh rate in Hz or calculate it if necessary.
564 * 590 *
565 * FIXME: why is this needed? shouldn't vrefresh be set already? 591 * FIXME: why is this needed? shouldn't vrefresh be set already?
566 * 592 *
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 55bb8a82d612..ad73e141afdb 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -128,6 +128,7 @@ struct drm_master *drm_master_get(struct drm_master *master)
128 kref_get(&master->refcount); 128 kref_get(&master->refcount);
129 return master; 129 return master;
130} 130}
131EXPORT_SYMBOL(drm_master_get);
131 132
132static void drm_master_destroy(struct kref *kref) 133static void drm_master_destroy(struct kref *kref)
133{ 134{
@@ -170,10 +171,13 @@ void drm_master_put(struct drm_master **master)
170 kref_put(&(*master)->refcount, drm_master_destroy); 171 kref_put(&(*master)->refcount, drm_master_destroy);
171 *master = NULL; 172 *master = NULL;
172} 173}
174EXPORT_SYMBOL(drm_master_put);
173 175
174int drm_setmaster_ioctl(struct drm_device *dev, void *data, 176int drm_setmaster_ioctl(struct drm_device *dev, void *data,
175 struct drm_file *file_priv) 177 struct drm_file *file_priv)
176{ 178{
179 int ret = 0;
180
177 if (file_priv->is_master) 181 if (file_priv->is_master)
178 return 0; 182 return 0;
179 183
@@ -188,6 +192,13 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data,
188 mutex_lock(&dev->struct_mutex); 192 mutex_lock(&dev->struct_mutex);
189 file_priv->minor->master = drm_master_get(file_priv->master); 193 file_priv->minor->master = drm_master_get(file_priv->master);
190 file_priv->is_master = 1; 194 file_priv->is_master = 1;
195 if (dev->driver->master_set) {
196 ret = dev->driver->master_set(dev, file_priv, false);
197 if (unlikely(ret != 0)) {
198 file_priv->is_master = 0;
199 drm_master_put(&file_priv->minor->master);
200 }
201 }
191 mutex_unlock(&dev->struct_mutex); 202 mutex_unlock(&dev->struct_mutex);
192 } 203 }
193 204
@@ -204,6 +215,8 @@ int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
204 return -EINVAL; 215 return -EINVAL;
205 216
206 mutex_lock(&dev->struct_mutex); 217 mutex_lock(&dev->struct_mutex);
218 if (dev->driver->master_drop)
219 dev->driver->master_drop(dev, file_priv, false);
207 drm_master_put(&file_priv->minor->master); 220 drm_master_put(&file_priv->minor->master);
208 file_priv->is_master = 0; 221 file_priv->is_master = 0;
209 mutex_unlock(&dev->struct_mutex); 222 mutex_unlock(&dev->struct_mutex);
@@ -220,9 +233,11 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
220 INIT_LIST_HEAD(&dev->ctxlist); 233 INIT_LIST_HEAD(&dev->ctxlist);
221 INIT_LIST_HEAD(&dev->vmalist); 234 INIT_LIST_HEAD(&dev->vmalist);
222 INIT_LIST_HEAD(&dev->maplist); 235 INIT_LIST_HEAD(&dev->maplist);
236 INIT_LIST_HEAD(&dev->vblank_event_list);
223 237
224 spin_lock_init(&dev->count_lock); 238 spin_lock_init(&dev->count_lock);
225 spin_lock_init(&dev->drw_lock); 239 spin_lock_init(&dev->drw_lock);
240 spin_lock_init(&dev->event_lock);
226 init_timer(&dev->timer); 241 init_timer(&dev->timer);
227 mutex_init(&dev->struct_mutex); 242 mutex_init(&dev->struct_mutex);
228 mutex_init(&dev->ctxlist_mutex); 243 mutex_init(&dev->ctxlist_mutex);
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index fa7b9be096bc..e3d049229cdd 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -15,7 +15,6 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
15 intel_lvds.o \ 15 intel_lvds.o \
16 intel_bios.o \ 16 intel_bios.o \
17 intel_dp.o \ 17 intel_dp.o \
18 intel_dp_i2c.o \
19 intel_hdmi.o \ 18 intel_hdmi.o \
20 intel_sdvo.o \ 19 intel_sdvo.o \
21 intel_modes.o \ 20 intel_modes.o \
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 7f436ec075f6..2fa217862058 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -333,6 +333,7 @@ static struct drm_driver driver = {
333 .mmap = drm_gem_mmap, 333 .mmap = drm_gem_mmap,
334 .poll = drm_poll, 334 .poll = drm_poll,
335 .fasync = drm_fasync, 335 .fasync = drm_fasync,
336 .read = drm_read,
336#ifdef CONFIG_COMPAT 337#ifdef CONFIG_COMPAT
337 .compat_ioctl = i915_compat_ioctl, 338 .compat_ioctl = i915_compat_ioctl,
338#endif 339#endif
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 099f420de57a..897230832c8c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -32,7 +32,7 @@
32#include "intel_drv.h" 32#include "intel_drv.h"
33#include "i915_drm.h" 33#include "i915_drm.h"
34#include "i915_drv.h" 34#include "i915_drv.h"
35#include "intel_dp.h" 35#include "drm_dp_helper.h"
36 36
37#include "drm_crtc_helper.h" 37#include "drm_crtc_helper.h"
38 38
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d83447557f9b..63424d5db9c6 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -33,7 +33,7 @@
33#include "intel_drv.h" 33#include "intel_drv.h"
34#include "i915_drm.h" 34#include "i915_drm.h"
35#include "i915_drv.h" 35#include "i915_drv.h"
36#include "intel_dp.h" 36#include "drm_dp_helper.h"
37 37
38#define DP_LINK_STATUS_SIZE 6 38#define DP_LINK_STATUS_SIZE 6
39#define DP_LINK_CHECK_TIMEOUT (10 * 1000) 39#define DP_LINK_CHECK_TIMEOUT (10 * 1000)
@@ -382,17 +382,77 @@ intel_dp_aux_native_read(struct intel_output *intel_output,
382} 382}
383 383
384static int 384static int
385intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, 385intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
386 uint8_t *send, int send_bytes, 386 uint8_t write_byte, uint8_t *read_byte)
387 uint8_t *recv, int recv_bytes)
388{ 387{
388 struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
389 struct intel_dp_priv *dp_priv = container_of(adapter, 389 struct intel_dp_priv *dp_priv = container_of(adapter,
390 struct intel_dp_priv, 390 struct intel_dp_priv,
391 adapter); 391 adapter);
392 struct intel_output *intel_output = dp_priv->intel_output; 392 struct intel_output *intel_output = dp_priv->intel_output;
393 uint16_t address = algo_data->address;
394 uint8_t msg[5];
395 uint8_t reply[2];
396 int msg_bytes;
397 int reply_bytes;
398 int ret;
399
400 /* Set up the command byte */
401 if (mode & MODE_I2C_READ)
402 msg[0] = AUX_I2C_READ << 4;
403 else
404 msg[0] = AUX_I2C_WRITE << 4;
405
406 if (!(mode & MODE_I2C_STOP))
407 msg[0] |= AUX_I2C_MOT << 4;
408
409 msg[1] = address >> 8;
410 msg[2] = address;
411
412 switch (mode) {
413 case MODE_I2C_WRITE:
414 msg[3] = 0;
415 msg[4] = write_byte;
416 msg_bytes = 5;
417 reply_bytes = 1;
418 break;
419 case MODE_I2C_READ:
420 msg[3] = 0;
421 msg_bytes = 4;
422 reply_bytes = 2;
423 break;
424 default:
425 msg_bytes = 3;
426 reply_bytes = 1;
427 break;
428 }
393 429
394 return intel_dp_aux_ch(intel_output, 430 for (;;) {
395 send, send_bytes, recv, recv_bytes); 431 ret = intel_dp_aux_ch(intel_output,
432 msg, msg_bytes,
433 reply, reply_bytes);
434 if (ret < 0) {
435 DRM_DEBUG("aux_ch failed %d\n", ret);
436 return ret;
437 }
438 switch (reply[0] & AUX_I2C_REPLY_MASK) {
439 case AUX_I2C_REPLY_ACK:
440 if (mode == MODE_I2C_READ) {
441 *read_byte = reply[1];
442 }
443 return reply_bytes - 1;
444 case AUX_I2C_REPLY_NACK:
445 DRM_DEBUG("aux_ch nack\n");
446 return -EREMOTEIO;
447 case AUX_I2C_REPLY_DEFER:
448 DRM_DEBUG("aux_ch defer\n");
449 udelay(100);
450 break;
451 default:
452 DRM_ERROR("aux_ch invalid reply 0x%02x\n", reply[0]);
453 return -EREMOTEIO;
454 }
455 }
396} 456}
397 457
398static int 458static int
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index b0a9de7a57c2..1e138f5bae09 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -3,6 +3,7 @@
3 3
4ccflags-y := -Iinclude/drm 4ccflags-y := -Iinclude/drm
5ttm-y := ttm_agp_backend.o ttm_memory.o ttm_tt.o ttm_bo.o \ 5ttm-y := ttm_agp_backend.o ttm_memory.o ttm_tt.o ttm_bo.o \
6 ttm_bo_util.o ttm_bo_vm.o ttm_module.o ttm_global.o 6 ttm_bo_util.o ttm_bo_vm.o ttm_module.o ttm_global.o \
7 ttm_object.o ttm_lock.o ttm_execbuf_util.o
7 8
8obj-$(CONFIG_DRM_TTM) += ttm.o 9obj-$(CONFIG_DRM_TTM) += ttm.o
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 87c06252d464..e13fd23f3334 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -275,9 +275,10 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
275 bo->ttm = ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT, 275 bo->ttm = ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
276 page_flags | TTM_PAGE_FLAG_USER, 276 page_flags | TTM_PAGE_FLAG_USER,
277 glob->dummy_read_page); 277 glob->dummy_read_page);
278 if (unlikely(bo->ttm == NULL)) 278 if (unlikely(bo->ttm == NULL)) {
279 ret = -ENOMEM; 279 ret = -ENOMEM;
280 break; 280 break;
281 }
281 282
282 ret = ttm_tt_set_user(bo->ttm, current, 283 ret = ttm_tt_set_user(bo->ttm, current,
283 bo->buffer_start, bo->num_pages); 284 bo->buffer_start, bo->num_pages);
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index c70927ecda21..ceae52f45c39 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -369,6 +369,7 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp)
369#endif 369#endif
370 return tmp; 370 return tmp;
371} 371}
372EXPORT_SYMBOL(ttm_io_prot);
372 373
373static int ttm_bo_ioremap(struct ttm_buffer_object *bo, 374static int ttm_bo_ioremap(struct ttm_buffer_object *bo,
374 unsigned long bus_base, 375 unsigned long bus_base,
diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
new file mode 100644
index 000000000000..c285c2902d15
--- /dev/null
+++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
@@ -0,0 +1,117 @@
1/**************************************************************************
2 *
3 * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include "ttm/ttm_execbuf_util.h"
29#include "ttm/ttm_bo_driver.h"
30#include "ttm/ttm_placement.h"
31#include <linux/wait.h>
32#include <linux/sched.h>
33#include <linux/module.h>
34
35void ttm_eu_backoff_reservation(struct list_head *list)
36{
37 struct ttm_validate_buffer *entry;
38
39 list_for_each_entry(entry, list, head) {
40 struct ttm_buffer_object *bo = entry->bo;
41 if (!entry->reserved)
42 continue;
43
44 entry->reserved = false;
45 ttm_bo_unreserve(bo);
46 }
47}
48EXPORT_SYMBOL(ttm_eu_backoff_reservation);
49
50/*
51 * Reserve buffers for validation.
52 *
53 * If a buffer in the list is marked for CPU access, we back off and
54 * wait for that buffer to become free for GPU access.
55 *
56 * If a buffer is reserved for another validation, the validator with
57 * the highest validation sequence backs off and waits for that buffer
58 * to become unreserved. This prevents deadlocks when validating multiple
59 * buffers in different orders.
60 */
61
62int ttm_eu_reserve_buffers(struct list_head *list, uint32_t val_seq)
63{
64 struct ttm_validate_buffer *entry;
65 int ret;
66
67retry:
68 list_for_each_entry(entry, list, head) {
69 struct ttm_buffer_object *bo = entry->bo;
70
71 entry->reserved = false;
72 ret = ttm_bo_reserve(bo, true, false, true, val_seq);
73 if (ret != 0) {
74 ttm_eu_backoff_reservation(list);
75 if (ret == -EAGAIN) {
76 ret = ttm_bo_wait_unreserved(bo, true);
77 if (unlikely(ret != 0))
78 return ret;
79 goto retry;
80 } else
81 return ret;
82 }
83
84 entry->reserved = true;
85 if (unlikely(atomic_read(&bo->cpu_writers) > 0)) {
86 ttm_eu_backoff_reservation(list);
87 ret = ttm_bo_wait_cpu(bo, false);
88 if (ret)
89 return ret;
90 goto retry;
91 }
92 }
93 return 0;
94}
95EXPORT_SYMBOL(ttm_eu_reserve_buffers);
96
97void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj)
98{
99 struct ttm_validate_buffer *entry;
100
101 list_for_each_entry(entry, list, head) {
102 struct ttm_buffer_object *bo = entry->bo;
103 struct ttm_bo_driver *driver = bo->bdev->driver;
104 void *old_sync_obj;
105
106 spin_lock(&bo->lock);
107 old_sync_obj = bo->sync_obj;
108 bo->sync_obj = driver->sync_obj_ref(sync_obj);
109 bo->sync_obj_arg = entry->new_sync_obj_arg;
110 spin_unlock(&bo->lock);
111 ttm_bo_unreserve(bo);
112 entry->reserved = false;
113 if (old_sync_obj)
114 driver->sync_obj_unref(&old_sync_obj);
115 }
116}
117EXPORT_SYMBOL(ttm_eu_fence_buffer_objects);
diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/ttm/ttm_lock.c
new file mode 100644
index 000000000000..f619ebcaa4ec
--- /dev/null
+++ b/drivers/gpu/drm/ttm/ttm_lock.c
@@ -0,0 +1,311 @@
1/**************************************************************************
2 *
3 * Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
29 */
30
31#include "ttm/ttm_lock.h"
32#include "ttm/ttm_module.h"
33#include <asm/atomic.h>
34#include <linux/errno.h>
35#include <linux/wait.h>
36#include <linux/sched.h>
37#include <linux/module.h>
38
39#define TTM_WRITE_LOCK_PENDING (1 << 0)
40#define TTM_VT_LOCK_PENDING (1 << 1)
41#define TTM_SUSPEND_LOCK_PENDING (1 << 2)
42#define TTM_VT_LOCK (1 << 3)
43#define TTM_SUSPEND_LOCK (1 << 4)
44
45void ttm_lock_init(struct ttm_lock *lock)
46{
47 spin_lock_init(&lock->lock);
48 init_waitqueue_head(&lock->queue);
49 lock->rw = 0;
50 lock->flags = 0;
51 lock->kill_takers = false;
52 lock->signal = SIGKILL;
53}
54EXPORT_SYMBOL(ttm_lock_init);
55
56void ttm_read_unlock(struct ttm_lock *lock)
57{
58 spin_lock(&lock->lock);
59 if (--lock->rw == 0)
60 wake_up_all(&lock->queue);
61 spin_unlock(&lock->lock);
62}
63EXPORT_SYMBOL(ttm_read_unlock);
64
65static bool __ttm_read_lock(struct ttm_lock *lock)
66{
67 bool locked = false;
68
69 spin_lock(&lock->lock);
70 if (unlikely(lock->kill_takers)) {
71 send_sig(lock->signal, current, 0);
72 spin_unlock(&lock->lock);
73 return false;
74 }
75 if (lock->rw >= 0 && lock->flags == 0) {
76 ++lock->rw;
77 locked = true;
78 }
79 spin_unlock(&lock->lock);
80 return locked;
81}
82
83int ttm_read_lock(struct ttm_lock *lock, bool interruptible)
84{
85 int ret = 0;
86
87 if (interruptible)
88 ret = wait_event_interruptible(lock->queue,
89 __ttm_read_lock(lock));
90 else
91 wait_event(lock->queue, __ttm_read_lock(lock));
92 return ret;
93}
94EXPORT_SYMBOL(ttm_read_lock);
95
96static bool __ttm_read_trylock(struct ttm_lock *lock, bool *locked)
97{
98 bool block = true;
99
100 *locked = false;
101
102 spin_lock(&lock->lock);
103 if (unlikely(lock->kill_takers)) {
104 send_sig(lock->signal, current, 0);
105 spin_unlock(&lock->lock);
106 return false;
107 }
108 if (lock->rw >= 0 && lock->flags == 0) {
109 ++lock->rw;
110 block = false;
111 *locked = true;
112 } else if (lock->flags == 0) {
113 block = false;
114 }
115 spin_unlock(&lock->lock);
116
117 return !block;
118}
119
120int ttm_read_trylock(struct ttm_lock *lock, bool interruptible)
121{
122 int ret = 0;
123 bool locked;
124
125 if (interruptible)
126 ret = wait_event_interruptible
127 (lock->queue, __ttm_read_trylock(lock, &locked));
128 else
129 wait_event(lock->queue, __ttm_read_trylock(lock, &locked));
130
131 if (unlikely(ret != 0)) {
132 BUG_ON(locked);
133 return ret;
134 }
135
136 return (locked) ? 0 : -EBUSY;
137}
138
139void ttm_write_unlock(struct ttm_lock *lock)
140{
141 spin_lock(&lock->lock);
142 lock->rw = 0;
143 wake_up_all(&lock->queue);
144 spin_unlock(&lock->lock);
145}
146EXPORT_SYMBOL(ttm_write_unlock);
147
148static bool __ttm_write_lock(struct ttm_lock *lock)
149{
150 bool locked = false;
151
152 spin_lock(&lock->lock);
153 if (unlikely(lock->kill_takers)) {
154 send_sig(lock->signal, current, 0);
155 spin_unlock(&lock->lock);
156 return false;
157 }
158 if (lock->rw == 0 && ((lock->flags & ~TTM_WRITE_LOCK_PENDING) == 0)) {
159 lock->rw = -1;
160 lock->flags &= ~TTM_WRITE_LOCK_PENDING;
161 locked = true;
162 } else {
163 lock->flags |= TTM_WRITE_LOCK_PENDING;
164 }
165 spin_unlock(&lock->lock);
166 return locked;
167}
168
169int ttm_write_lock(struct ttm_lock *lock, bool interruptible)
170{
171 int ret = 0;
172
173 if (interruptible) {
174 ret = wait_event_interruptible(lock->queue,
175 __ttm_write_lock(lock));
176 if (unlikely(ret != 0)) {
177 spin_lock(&lock->lock);
178 lock->flags &= ~TTM_WRITE_LOCK_PENDING;
179 wake_up_all(&lock->queue);
180 spin_unlock(&lock->lock);
181 }
182 } else
183 wait_event(lock->queue, __ttm_read_lock(lock));
184
185 return ret;
186}
187EXPORT_SYMBOL(ttm_write_lock);
188
189void ttm_write_lock_downgrade(struct ttm_lock *lock)
190{
191 spin_lock(&lock->lock);
192 lock->rw = 1;
193 wake_up_all(&lock->queue);
194 spin_unlock(&lock->lock);
195}
196
197static int __ttm_vt_unlock(struct ttm_lock *lock)
198{
199 int ret = 0;
200
201 spin_lock(&lock->lock);
202 if (unlikely(!(lock->flags & TTM_VT_LOCK)))
203 ret = -EINVAL;
204 lock->flags &= ~TTM_VT_LOCK;
205 wake_up_all(&lock->queue);
206 spin_unlock(&lock->lock);
207 printk(KERN_INFO TTM_PFX "vt unlock.\n");
208
209 return ret;
210}
211
212static void ttm_vt_lock_remove(struct ttm_base_object **p_base)
213{
214 struct ttm_base_object *base = *p_base;
215 struct ttm_lock *lock = container_of(base, struct ttm_lock, base);
216 int ret;
217
218 *p_base = NULL;
219 ret = __ttm_vt_unlock(lock);
220 BUG_ON(ret != 0);
221}
222
223static bool __ttm_vt_lock(struct ttm_lock *lock)
224{
225 bool locked = false;
226
227 spin_lock(&lock->lock);
228 if (lock->rw == 0) {
229 lock->flags &= ~TTM_VT_LOCK_PENDING;
230 lock->flags |= TTM_VT_LOCK;
231 locked = true;
232 } else {
233 lock->flags |= TTM_VT_LOCK_PENDING;
234 }
235 spin_unlock(&lock->lock);
236 return locked;
237}
238
239int ttm_vt_lock(struct ttm_lock *lock,
240 bool interruptible,
241 struct ttm_object_file *tfile)
242{
243 int ret = 0;
244
245 if (interruptible) {
246 ret = wait_event_interruptible(lock->queue,
247 __ttm_vt_lock(lock));
248 if (unlikely(ret != 0)) {
249 spin_lock(&lock->lock);
250 lock->flags &= ~TTM_VT_LOCK_PENDING;
251 wake_up_all(&lock->queue);
252 spin_unlock(&lock->lock);
253 return ret;
254 }
255 } else
256 wait_event(lock->queue, __ttm_vt_lock(lock));
257
258 /*
259 * Add a base-object, the destructor of which will
260 * make sure the lock is released if the client dies
261 * while holding it.
262 */
263
264 ret = ttm_base_object_init(tfile, &lock->base, false,
265 ttm_lock_type, &ttm_vt_lock_remove, NULL);
266 if (ret)
267 (void)__ttm_vt_unlock(lock);
268 else {
269 lock->vt_holder = tfile;
270 printk(KERN_INFO TTM_PFX "vt lock.\n");
271 }
272
273 return ret;
274}
275EXPORT_SYMBOL(ttm_vt_lock);
276
277int ttm_vt_unlock(struct ttm_lock *lock)
278{
279 return ttm_ref_object_base_unref(lock->vt_holder,
280 lock->base.hash.key, TTM_REF_USAGE);
281}
282EXPORT_SYMBOL(ttm_vt_unlock);
283
284void ttm_suspend_unlock(struct ttm_lock *lock)
285{
286 spin_lock(&lock->lock);
287 lock->flags &= ~TTM_SUSPEND_LOCK;
288 wake_up_all(&lock->queue);
289 spin_unlock(&lock->lock);
290}
291
292static bool __ttm_suspend_lock(struct ttm_lock *lock)
293{
294 bool locked = false;
295
296 spin_lock(&lock->lock);
297 if (lock->rw == 0) {
298 lock->flags &= ~TTM_SUSPEND_LOCK_PENDING;
299 lock->flags |= TTM_SUSPEND_LOCK;
300 locked = true;
301 } else {
302 lock->flags |= TTM_SUSPEND_LOCK_PENDING;
303 }
304 spin_unlock(&lock->lock);
305 return locked;
306}
307
308void ttm_suspend_lock(struct ttm_lock *lock)
309{
310 wait_event(lock->queue, __ttm_suspend_lock(lock));
311}
diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index 072c281a6bb5..8bfde5f40841 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -274,16 +274,17 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
274static int ttm_mem_init_highmem_zone(struct ttm_mem_global *glob, 274static int ttm_mem_init_highmem_zone(struct ttm_mem_global *glob,
275 const struct sysinfo *si) 275 const struct sysinfo *si)
276{ 276{
277 struct ttm_mem_zone *zone = kzalloc(sizeof(*zone), GFP_KERNEL); 277 struct ttm_mem_zone *zone;
278 uint64_t mem; 278 uint64_t mem;
279 int ret; 279 int ret;
280 280
281 if (unlikely(!zone))
282 return -ENOMEM;
283
284 if (si->totalhigh == 0) 281 if (si->totalhigh == 0)
285 return 0; 282 return 0;
286 283
284 zone = kzalloc(sizeof(*zone), GFP_KERNEL);
285 if (unlikely(!zone))
286 return -ENOMEM;
287
287 mem = si->totalram; 288 mem = si->totalram;
288 mem *= si->mem_unit; 289 mem *= si->mem_unit;
289 290
@@ -460,6 +461,7 @@ void ttm_mem_global_free(struct ttm_mem_global *glob,
460{ 461{
461 return ttm_mem_global_free_zone(glob, NULL, amount); 462 return ttm_mem_global_free_zone(glob, NULL, amount);
462} 463}
464EXPORT_SYMBOL(ttm_mem_global_free);
463 465
464static int ttm_mem_global_reserve(struct ttm_mem_global *glob, 466static int ttm_mem_global_reserve(struct ttm_mem_global *glob,
465 struct ttm_mem_zone *single_zone, 467 struct ttm_mem_zone *single_zone,
@@ -533,6 +535,7 @@ int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory,
533 return ttm_mem_global_alloc_zone(glob, NULL, memory, no_wait, 535 return ttm_mem_global_alloc_zone(glob, NULL, memory, no_wait,
534 interruptible); 536 interruptible);
535} 537}
538EXPORT_SYMBOL(ttm_mem_global_alloc);
536 539
537int ttm_mem_global_alloc_page(struct ttm_mem_global *glob, 540int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
538 struct page *page, 541 struct page *page,
@@ -588,3 +591,4 @@ size_t ttm_round_pot(size_t size)
588 } 591 }
589 return 0; 592 return 0;
590} 593}
594EXPORT_SYMBOL(ttm_round_pot);
diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c
new file mode 100644
index 000000000000..1099abac824b
--- /dev/null
+++ b/drivers/gpu/drm/ttm/ttm_object.c
@@ -0,0 +1,452 @@
1/**************************************************************************
2 *
3 * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
29 */
30/** @file ttm_ref_object.c
31 *
32 * Base- and reference object implementation for the various
33 * ttm objects. Implements reference counting, minimal security checks
34 * and release on file close.
35 */
36
37/**
38 * struct ttm_object_file
39 *
40 * @tdev: Pointer to the ttm_object_device.
41 *
42 * @lock: Lock that protects the ref_list list and the
43 * ref_hash hash tables.
44 *
45 * @ref_list: List of ttm_ref_objects to be destroyed at
46 * file release.
47 *
48 * @ref_hash: Hash tables of ref objects, one per ttm_ref_type,
49 * for fast lookup of ref objects given a base object.
50 */
51
52#include "ttm/ttm_object.h"
53#include "ttm/ttm_module.h"
54#include <linux/list.h>
55#include <linux/spinlock.h>
56#include <linux/slab.h>
57#include <linux/module.h>
58#include <asm/atomic.h>
59
60struct ttm_object_file {
61 struct ttm_object_device *tdev;
62 rwlock_t lock;
63 struct list_head ref_list;
64 struct drm_open_hash ref_hash[TTM_REF_NUM];
65 struct kref refcount;
66};
67
68/**
69 * struct ttm_object_device
70 *
71 * @object_lock: lock that protects the object_hash hash table.
72 *
73 * @object_hash: hash table for fast lookup of object global names.
74 *
75 * @object_count: Per device object count.
76 *
77 * This is the per-device data structure needed for ttm object management.
78 */
79
80struct ttm_object_device {
81 rwlock_t object_lock;
82 struct drm_open_hash object_hash;
83 atomic_t object_count;
84 struct ttm_mem_global *mem_glob;
85};
86
87/**
88 * struct ttm_ref_object
89 *
90 * @hash: Hash entry for the per-file object reference hash.
91 *
92 * @head: List entry for the per-file list of ref-objects.
93 *
94 * @kref: Ref count.
95 *
96 * @obj: Base object this ref object is referencing.
97 *
98 * @ref_type: Type of ref object.
99 *
100 * This is similar to an idr object, but it also has a hash table entry
101 * that allows lookup with a pointer to the referenced object as a key. In
102 * that way, one can easily detect whether a base object is referenced by
103 * a particular ttm_object_file. It also carries a ref count to avoid creating
104 * multiple ref objects if a ttm_object_file references the same base
105 * object more than once.
106 */
107
108struct ttm_ref_object {
109 struct drm_hash_item hash;
110 struct list_head head;
111 struct kref kref;
112 struct ttm_base_object *obj;
113 enum ttm_ref_type ref_type;
114 struct ttm_object_file *tfile;
115};
116
117static inline struct ttm_object_file *
118ttm_object_file_ref(struct ttm_object_file *tfile)
119{
120 kref_get(&tfile->refcount);
121 return tfile;
122}
123
124static void ttm_object_file_destroy(struct kref *kref)
125{
126 struct ttm_object_file *tfile =
127 container_of(kref, struct ttm_object_file, refcount);
128
129 kfree(tfile);
130}
131
132
133static inline void ttm_object_file_unref(struct ttm_object_file **p_tfile)
134{
135 struct ttm_object_file *tfile = *p_tfile;
136
137 *p_tfile = NULL;
138 kref_put(&tfile->refcount, ttm_object_file_destroy);
139}
140
141
142int ttm_base_object_init(struct ttm_object_file *tfile,
143 struct ttm_base_object *base,
144 bool shareable,
145 enum ttm_object_type object_type,
146 void (*refcount_release) (struct ttm_base_object **),
147 void (*ref_obj_release) (struct ttm_base_object *,
148 enum ttm_ref_type ref_type))
149{
150 struct ttm_object_device *tdev = tfile->tdev;
151 int ret;
152
153 base->shareable = shareable;
154 base->tfile = ttm_object_file_ref(tfile);
155 base->refcount_release = refcount_release;
156 base->ref_obj_release = ref_obj_release;
157 base->object_type = object_type;
158 write_lock(&tdev->object_lock);
159 kref_init(&base->refcount);
160 ret = drm_ht_just_insert_please(&tdev->object_hash,
161 &base->hash,
162 (unsigned long)base, 31, 0, 0);
163 write_unlock(&tdev->object_lock);
164 if (unlikely(ret != 0))
165 goto out_err0;
166
167 ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
168 if (unlikely(ret != 0))
169 goto out_err1;
170
171 ttm_base_object_unref(&base);
172
173 return 0;
174out_err1:
175 (void)drm_ht_remove_item(&tdev->object_hash, &base->hash);
176out_err0:
177 return ret;
178}
179EXPORT_SYMBOL(ttm_base_object_init);
180
181static void ttm_release_base(struct kref *kref)
182{
183 struct ttm_base_object *base =
184 container_of(kref, struct ttm_base_object, refcount);
185 struct ttm_object_device *tdev = base->tfile->tdev;
186
187 (void)drm_ht_remove_item(&tdev->object_hash, &base->hash);
188 write_unlock(&tdev->object_lock);
189 if (base->refcount_release) {
190 ttm_object_file_unref(&base->tfile);
191 base->refcount_release(&base);
192 }
193 write_lock(&tdev->object_lock);
194}
195
196void ttm_base_object_unref(struct ttm_base_object **p_base)
197{
198 struct ttm_base_object *base = *p_base;
199 struct ttm_object_device *tdev = base->tfile->tdev;
200
201 *p_base = NULL;
202
203 /*
204 * Need to take the lock here to avoid racing with
205 * users trying to look up the object.
206 */
207
208 write_lock(&tdev->object_lock);
209 (void)kref_put(&base->refcount, &ttm_release_base);
210 write_unlock(&tdev->object_lock);
211}
212EXPORT_SYMBOL(ttm_base_object_unref);
213
214struct ttm_base_object *ttm_base_object_lookup(struct ttm_object_file *tfile,
215 uint32_t key)
216{
217 struct ttm_object_device *tdev = tfile->tdev;
218 struct ttm_base_object *base;
219 struct drm_hash_item *hash;
220 int ret;
221
222 read_lock(&tdev->object_lock);
223 ret = drm_ht_find_item(&tdev->object_hash, key, &hash);
224
225 if (likely(ret == 0)) {
226 base = drm_hash_entry(hash, struct ttm_base_object, hash);
227 kref_get(&base->refcount);
228 }
229 read_unlock(&tdev->object_lock);
230
231 if (unlikely(ret != 0))
232 return NULL;
233
234 if (tfile != base->tfile && !base->shareable) {
235 printk(KERN_ERR TTM_PFX
236 "Attempted access of non-shareable object.\n");
237 ttm_base_object_unref(&base);
238 return NULL;
239 }
240
241 return base;
242}
243EXPORT_SYMBOL(ttm_base_object_lookup);
244
245int ttm_ref_object_add(struct ttm_object_file *tfile,
246 struct ttm_base_object *base,
247 enum ttm_ref_type ref_type, bool *existed)
248{
249 struct drm_open_hash *ht = &tfile->ref_hash[ref_type];
250 struct ttm_ref_object *ref;
251 struct drm_hash_item *hash;
252 struct ttm_mem_global *mem_glob = tfile->tdev->mem_glob;
253 int ret = -EINVAL;
254
255 if (existed != NULL)
256 *existed = true;
257
258 while (ret == -EINVAL) {
259 read_lock(&tfile->lock);
260 ret = drm_ht_find_item(ht, base->hash.key, &hash);
261
262 if (ret == 0) {
263 ref = drm_hash_entry(hash, struct ttm_ref_object, hash);
264 kref_get(&ref->kref);
265 read_unlock(&tfile->lock);
266 break;
267 }
268
269 read_unlock(&tfile->lock);
270 ret = ttm_mem_global_alloc(mem_glob, sizeof(*ref),
271 false, false);
272 if (unlikely(ret != 0))
273 return ret;
274 ref = kmalloc(sizeof(*ref), GFP_KERNEL);
275 if (unlikely(ref == NULL)) {
276 ttm_mem_global_free(mem_glob, sizeof(*ref));
277 return -ENOMEM;
278 }
279
280 ref->hash.key = base->hash.key;
281 ref->obj = base;
282 ref->tfile = tfile;
283 ref->ref_type = ref_type;
284 kref_init(&ref->kref);
285
286 write_lock(&tfile->lock);
287 ret = drm_ht_insert_item(ht, &ref->hash);
288
289 if (likely(ret == 0)) {
290 list_add_tail(&ref->head, &tfile->ref_list);
291 kref_get(&base->refcount);
292 write_unlock(&tfile->lock);
293 if (existed != NULL)
294 *existed = false;
295 break;
296 }
297
298 write_unlock(&tfile->lock);
299 BUG_ON(ret != -EINVAL);
300
301 ttm_mem_global_free(mem_glob, sizeof(*ref));
302 kfree(ref);
303 }
304
305 return ret;
306}
307EXPORT_SYMBOL(ttm_ref_object_add);
308
309static void ttm_ref_object_release(struct kref *kref)
310{
311 struct ttm_ref_object *ref =
312 container_of(kref, struct ttm_ref_object, kref);
313 struct ttm_base_object *base = ref->obj;
314 struct ttm_object_file *tfile = ref->tfile;
315 struct drm_open_hash *ht;
316 struct ttm_mem_global *mem_glob = tfile->tdev->mem_glob;
317
318 ht = &tfile->ref_hash[ref->ref_type];
319 (void)drm_ht_remove_item(ht, &ref->hash);
320 list_del(&ref->head);
321 write_unlock(&tfile->lock);
322
323 if (ref->ref_type != TTM_REF_USAGE && base->ref_obj_release)
324 base->ref_obj_release(base, ref->ref_type);
325
326 ttm_base_object_unref(&ref->obj);
327 ttm_mem_global_free(mem_glob, sizeof(*ref));
328 kfree(ref);
329 write_lock(&tfile->lock);
330}
331
332int ttm_ref_object_base_unref(struct ttm_object_file *tfile,
333 unsigned long key, enum ttm_ref_type ref_type)
334{
335 struct drm_open_hash *ht = &tfile->ref_hash[ref_type];
336 struct ttm_ref_object *ref;
337 struct drm_hash_item *hash;
338 int ret;
339
340 write_lock(&tfile->lock);
341 ret = drm_ht_find_item(ht, key, &hash);
342 if (unlikely(ret != 0)) {
343 write_unlock(&tfile->lock);
344 return -EINVAL;
345 }
346 ref = drm_hash_entry(hash, struct ttm_ref_object, hash);
347 kref_put(&ref->kref, ttm_ref_object_release);
348 write_unlock(&tfile->lock);
349 return 0;
350}
351EXPORT_SYMBOL(ttm_ref_object_base_unref);
352
353void ttm_object_file_release(struct ttm_object_file **p_tfile)
354{
355 struct ttm_ref_object *ref;
356 struct list_head *list;
357 unsigned int i;
358 struct ttm_object_file *tfile = *p_tfile;
359
360 *p_tfile = NULL;
361 write_lock(&tfile->lock);
362
363 /*
364 * Since we release the lock within the loop, we have to
365 * restart it from the beginning each time.
366 */
367
368 while (!list_empty(&tfile->ref_list)) {
369 list = tfile->ref_list.next;
370 ref = list_entry(list, struct ttm_ref_object, head);
371 ttm_ref_object_release(&ref->kref);
372 }
373
374 for (i = 0; i < TTM_REF_NUM; ++i)
375 drm_ht_remove(&tfile->ref_hash[i]);
376
377 write_unlock(&tfile->lock);
378 ttm_object_file_unref(&tfile);
379}
380EXPORT_SYMBOL(ttm_object_file_release);
381
382struct ttm_object_file *ttm_object_file_init(struct ttm_object_device *tdev,
383 unsigned int hash_order)
384{
385 struct ttm_object_file *tfile = kmalloc(sizeof(*tfile), GFP_KERNEL);
386 unsigned int i;
387 unsigned int j = 0;
388 int ret;
389
390 if (unlikely(tfile == NULL))
391 return NULL;
392
393 rwlock_init(&tfile->lock);
394 tfile->tdev = tdev;
395 kref_init(&tfile->refcount);
396 INIT_LIST_HEAD(&tfile->ref_list);
397
398 for (i = 0; i < TTM_REF_NUM; ++i) {
399 ret = drm_ht_create(&tfile->ref_hash[i], hash_order);
400 if (ret) {
401 j = i;
402 goto out_err;
403 }
404 }
405
406 return tfile;
407out_err:
408 for (i = 0; i < j; ++i)
409 drm_ht_remove(&tfile->ref_hash[i]);
410
411 kfree(tfile);
412
413 return NULL;
414}
415EXPORT_SYMBOL(ttm_object_file_init);
416
417struct ttm_object_device *ttm_object_device_init(struct ttm_mem_global
418 *mem_glob,
419 unsigned int hash_order)
420{
421 struct ttm_object_device *tdev = kmalloc(sizeof(*tdev), GFP_KERNEL);
422 int ret;
423
424 if (unlikely(tdev == NULL))
425 return NULL;
426
427 tdev->mem_glob = mem_glob;
428 rwlock_init(&tdev->object_lock);
429 atomic_set(&tdev->object_count, 0);
430 ret = drm_ht_create(&tdev->object_hash, hash_order);
431
432 if (likely(ret == 0))
433 return tdev;
434
435 kfree(tdev);
436 return NULL;
437}
438EXPORT_SYMBOL(ttm_object_device_init);
439
440void ttm_object_device_release(struct ttm_object_device **p_tdev)
441{
442 struct ttm_object_device *tdev = *p_tdev;
443
444 *p_tdev = NULL;
445
446 write_lock(&tdev->object_lock);
447 drm_ht_remove(&tdev->object_hash);
448 write_unlock(&tdev->object_lock);
449
450 kfree(tdev);
451}
452EXPORT_SYMBOL(ttm_object_device_release);
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 7bcb89f39ce8..9c2b1cc5dba5 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -192,6 +192,7 @@ int ttm_tt_populate(struct ttm_tt *ttm)
192 ttm->state = tt_unbound; 192 ttm->state = tt_unbound;
193 return 0; 193 return 0;
194} 194}
195EXPORT_SYMBOL(ttm_tt_populate);
195 196
196#ifdef CONFIG_X86 197#ifdef CONFIG_X86
197static inline int ttm_tt_set_page_caching(struct page *p, 198static inline int ttm_tt_set_page_caching(struct page *p,
diff --git a/include/drm/drm.h b/include/drm/drm.h
index 7cb50bdde46d..43a35b092f04 100644
--- a/include/drm/drm.h
+++ b/include/drm/drm.h
@@ -36,17 +36,27 @@
36#ifndef _DRM_H_ 36#ifndef _DRM_H_
37#define _DRM_H_ 37#define _DRM_H_
38 38
39#if defined(__linux__)
40
39#include <linux/types.h> 41#include <linux/types.h>
40#include <asm/ioctl.h> /* For _IO* macros */ 42#include <asm/ioctl.h>
41#define DRM_IOCTL_NR(n) _IOC_NR(n) 43typedef unsigned int drm_handle_t;
42#define DRM_IOC_VOID _IOC_NONE
43#define DRM_IOC_READ _IOC_READ
44#define DRM_IOC_WRITE _IOC_WRITE
45#define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE
46#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
47 44
48#define DRM_MAJOR 226 45#else /* One of the BSDs */
49#define DRM_MAX_MINOR 15 46
47#include <sys/ioccom.h>
48#include <sys/types.h>
49typedef int8_t __s8;
50typedef uint8_t __u8;
51typedef int16_t __s16;
52typedef uint16_t __u16;
53typedef int32_t __s32;
54typedef uint32_t __u32;
55typedef int64_t __s64;
56typedef uint64_t __u64;
57typedef unsigned long drm_handle_t;
58
59#endif
50 60
51#define DRM_NAME "drm" /**< Name in kernel, /dev, and /proc */ 61#define DRM_NAME "drm" /**< Name in kernel, /dev, and /proc */
52#define DRM_MIN_ORDER 5 /**< At least 2^5 bytes = 32 bytes */ 62#define DRM_MIN_ORDER 5 /**< At least 2^5 bytes = 32 bytes */
@@ -59,7 +69,6 @@
59#define _DRM_LOCK_IS_CONT(lock) ((lock) & _DRM_LOCK_CONT) 69#define _DRM_LOCK_IS_CONT(lock) ((lock) & _DRM_LOCK_CONT)
60#define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT)) 70#define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))
61 71
62typedef unsigned int drm_handle_t;
63typedef unsigned int drm_context_t; 72typedef unsigned int drm_context_t;
64typedef unsigned int drm_drawable_t; 73typedef unsigned int drm_drawable_t;
65typedef unsigned int drm_magic_t; 74typedef unsigned int drm_magic_t;
@@ -454,6 +463,7 @@ struct drm_irq_busid {
454enum drm_vblank_seq_type { 463enum drm_vblank_seq_type {
455 _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ 464 _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
456 _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ 465 _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
466 _DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */
457 _DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ 467 _DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
458 _DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ 468 _DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
459 _DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ 469 _DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
@@ -461,8 +471,8 @@ enum drm_vblank_seq_type {
461}; 471};
462 472
463#define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE) 473#define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
464#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_SIGNAL | _DRM_VBLANK_SECONDARY | \ 474#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \
465 _DRM_VBLANK_NEXTONMISS) 475 _DRM_VBLANK_SECONDARY | _DRM_VBLANK_NEXTONMISS)
466 476
467struct drm_wait_vblank_request { 477struct drm_wait_vblank_request {
468 enum drm_vblank_seq_type type; 478 enum drm_vblank_seq_type type;
@@ -686,6 +696,8 @@ struct drm_gem_open {
686#define DRM_IOCTL_MODE_GETFB DRM_IOWR(0xAD, struct drm_mode_fb_cmd) 696#define DRM_IOCTL_MODE_GETFB DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
687#define DRM_IOCTL_MODE_ADDFB DRM_IOWR(0xAE, struct drm_mode_fb_cmd) 697#define DRM_IOCTL_MODE_ADDFB DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
688#define DRM_IOCTL_MODE_RMFB DRM_IOWR(0xAF, unsigned int) 698#define DRM_IOCTL_MODE_RMFB DRM_IOWR(0xAF, unsigned int)
699#define DRM_IOCTL_MODE_PAGE_FLIP DRM_IOWR(0xB0, struct drm_mode_crtc_page_flip)
700#define DRM_IOCTL_MODE_DIRTYFB DRM_IOWR(0xB1, struct drm_mode_fb_dirty_cmd)
689 701
690/** 702/**
691 * Device specific ioctls should only be in their respective headers 703 * Device specific ioctls should only be in their respective headers
@@ -698,6 +710,34 @@ struct drm_gem_open {
698#define DRM_COMMAND_BASE 0x40 710#define DRM_COMMAND_BASE 0x40
699#define DRM_COMMAND_END 0xA0 711#define DRM_COMMAND_END 0xA0
700 712
713/**
714 * Header for events written back to userspace on the drm fd. The
715 * type defines the type of event, the length specifies the total
716 * length of the event (including the header), and user_data is
717 * typically a 64 bit value passed with the ioctl that triggered the
718 * event. A read on the drm fd will always only return complete
719 * events, that is, if for example the read buffer is 100 bytes, and
720 * there are two 64 byte events pending, only one will be returned.
721 *
722 * Event types 0 - 0x7fffffff are generic drm events, 0x80000000 and
723 * up are chipset specific.
724 */
725struct drm_event {
726 __u32 type;
727 __u32 length;
728};
729
730#define DRM_EVENT_VBLANK 0x01
731
732struct drm_event_vblank {
733 struct drm_event base;
734 __u64 user_data;
735 __u32 tv_sec;
736 __u32 tv_usec;
737 __u32 sequence;
738 __u32 reserved;
739};
740
701/* typedef area */ 741/* typedef area */
702#ifndef __KERNEL__ 742#ifndef __KERNEL__
703typedef struct drm_clip_rect drm_clip_rect_t; 743typedef struct drm_clip_rect drm_clip_rect_t;
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index c8e64bbadbcf..db56a6add5de 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -245,16 +245,6 @@ extern void drm_ut_debug_printk(unsigned int request_level,
245 245
246#endif 246#endif
247 247
248#define DRM_PROC_LIMIT (PAGE_SIZE-80)
249
250#define DRM_PROC_PRINT(fmt, arg...) \
251 len += sprintf(&buf[len], fmt , ##arg); \
252 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
253
254#define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
255 len += sprintf(&buf[len], fmt , ##arg); \
256 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
257
258/*@}*/ 248/*@}*/
259 249
260/***********************************************************************/ 250/***********************************************************************/
@@ -265,19 +255,8 @@ extern void drm_ut_debug_printk(unsigned int request_level,
265 255
266#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1)) 256#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
267#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x)) 257#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
268#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
269 258
270#define DRM_IF_VERSION(maj, min) (maj << 16 | min) 259#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
271/**
272 * Get the private SAREA mapping.
273 *
274 * \param _dev DRM device.
275 * \param _ctx context number.
276 * \param _map output mapping.
277 */
278#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
279 (_map) = (_dev)->context_sareas[_ctx]; \
280} while(0)
281 260
282/** 261/**
283 * Test that the hardware lock is held by the caller, returning otherwise. 262 * Test that the hardware lock is held by the caller, returning otherwise.
@@ -297,18 +276,6 @@ do { \
297} while (0) 276} while (0)
298 277
299/** 278/**
300 * Copy and IOCTL return string to user space
301 */
302#define DRM_COPY( name, value ) \
303 len = strlen( value ); \
304 if ( len > name##_len ) len = name##_len; \
305 name##_len = strlen( value ); \
306 if ( len && name ) { \
307 if ( copy_to_user( name, value, len ) ) \
308 return -EFAULT; \
309 }
310
311/**
312 * Ioctl function type. 279 * Ioctl function type.
313 * 280 *
314 * \param inode device inode. 281 * \param inode device inode.
@@ -322,6 +289,9 @@ typedef int drm_ioctl_t(struct drm_device *dev, void *data,
322typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, 289typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
323 unsigned long arg); 290 unsigned long arg);
324 291
292#define DRM_IOCTL_NR(n) _IOC_NR(n)
293#define DRM_MAJOR 226
294
325#define DRM_AUTH 0x1 295#define DRM_AUTH 0x1
326#define DRM_MASTER 0x2 296#define DRM_MASTER 0x2
327#define DRM_ROOT_ONLY 0x4 297#define DRM_ROOT_ONLY 0x4
@@ -426,6 +396,14 @@ struct drm_buf_entry {
426 struct drm_freelist freelist; 396 struct drm_freelist freelist;
427}; 397};
428 398
399/* Event queued up for userspace to read */
400struct drm_pending_event {
401 struct drm_event *event;
402 struct list_head link;
403 struct drm_file *file_priv;
404 void (*destroy)(struct drm_pending_event *event);
405};
406
429/** File private data */ 407/** File private data */
430struct drm_file { 408struct drm_file {
431 int authenticated; 409 int authenticated;
@@ -449,6 +427,10 @@ struct drm_file {
449 struct drm_master *master; /* master this node is currently associated with 427 struct drm_master *master; /* master this node is currently associated with
450 N.B. not always minor->master */ 428 N.B. not always minor->master */
451 struct list_head fbs; 429 struct list_head fbs;
430
431 wait_queue_head_t event_wait;
432 struct list_head event_list;
433 int event_space;
452}; 434};
453 435
454/** Wait queue */ 436/** Wait queue */
@@ -795,6 +777,15 @@ struct drm_driver {
795 /* Master routines */ 777 /* Master routines */
796 int (*master_create)(struct drm_device *dev, struct drm_master *master); 778 int (*master_create)(struct drm_device *dev, struct drm_master *master);
797 void (*master_destroy)(struct drm_device *dev, struct drm_master *master); 779 void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
780 /**
781 * master_set is called whenever the minor master is set.
782 * master_drop is called whenever the minor master is dropped.
783 */
784
785 int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
786 bool from_open);
787 void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
788 bool from_release);
798 789
799 int (*proc_init)(struct drm_minor *minor); 790 int (*proc_init)(struct drm_minor *minor);
800 void (*proc_cleanup)(struct drm_minor *minor); 791 void (*proc_cleanup)(struct drm_minor *minor);
@@ -900,6 +891,12 @@ struct drm_minor {
900 struct drm_mode_group mode_group; 891 struct drm_mode_group mode_group;
901}; 892};
902 893
894struct drm_pending_vblank_event {
895 struct drm_pending_event base;
896 int pipe;
897 struct drm_event_vblank event;
898};
899
903/** 900/**
904 * DRM device structure. This structure represent a complete card that 901 * DRM device structure. This structure represent a complete card that
905 * may contain multiple heads. 902 * may contain multiple heads.
@@ -999,6 +996,12 @@ struct drm_device {
999 996
1000 u32 max_vblank_count; /**< size of vblank counter register */ 997 u32 max_vblank_count; /**< size of vblank counter register */
1001 998
999 /**
1000 * List of events
1001 */
1002 struct list_head vblank_event_list;
1003 spinlock_t event_lock;
1004
1002 /*@} */ 1005 /*@} */
1003 cycles_t ctx_start; 1006 cycles_t ctx_start;
1004 cycles_t lck_start; 1007 cycles_t lck_start;
@@ -1135,6 +1138,8 @@ extern int drm_lastclose(struct drm_device *dev);
1135extern int drm_open(struct inode *inode, struct file *filp); 1138extern int drm_open(struct inode *inode, struct file *filp);
1136extern int drm_stub_open(struct inode *inode, struct file *filp); 1139extern int drm_stub_open(struct inode *inode, struct file *filp);
1137extern int drm_fasync(int fd, struct file *filp, int on); 1140extern int drm_fasync(int fd, struct file *filp, int on);
1141extern ssize_t drm_read(struct file *filp, char __user *buffer,
1142 size_t count, loff_t *offset);
1138extern int drm_release(struct inode *inode, struct file *filp); 1143extern int drm_release(struct inode *inode, struct file *filp);
1139 1144
1140 /* Mapping support (drm_vm.h) */ 1145 /* Mapping support (drm_vm.h) */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index b69347b8904f..219f075d2733 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -123,7 +123,7 @@ struct drm_display_mode {
123 int type; 123 int type;
124 124
125 /* Proposed mode values */ 125 /* Proposed mode values */
126 int clock; 126 int clock; /* in kHz */
127 int hdisplay; 127 int hdisplay;
128 int hsync_start; 128 int hsync_start;
129 int hsync_end; 129 int hsync_end;
@@ -164,8 +164,8 @@ struct drm_display_mode {
164 int *private; 164 int *private;
165 int private_flags; 165 int private_flags;
166 166
167 int vrefresh; 167 int vrefresh; /* in Hz */
168 float hsync; 168 int hsync; /* in kHz */
169}; 169};
170 170
171enum drm_connector_status { 171enum drm_connector_status {
@@ -242,6 +242,21 @@ struct drm_framebuffer_funcs {
242 int (*create_handle)(struct drm_framebuffer *fb, 242 int (*create_handle)(struct drm_framebuffer *fb,
243 struct drm_file *file_priv, 243 struct drm_file *file_priv,
244 unsigned int *handle); 244 unsigned int *handle);
245 /**
246 * Optinal callback for the dirty fb ioctl.
247 *
248 * Userspace can notify the driver via this callback
249 * that a area of the framebuffer has changed and should
250 * be flushed to the display hardware.
251 *
252 * See documentation in drm_mode.h for the struct
253 * drm_mode_fb_dirty_cmd for more information as all
254 * the semantics and arguments have a one to one mapping
255 * on this function.
256 */
257 int (*dirty)(struct drm_framebuffer *framebuffer, unsigned flags,
258 unsigned color, struct drm_clip_rect *clips,
259 unsigned num_clips);
245}; 260};
246 261
247struct drm_framebuffer { 262struct drm_framebuffer {
@@ -256,7 +271,7 @@ struct drm_framebuffer {
256 unsigned int depth; 271 unsigned int depth;
257 int bits_per_pixel; 272 int bits_per_pixel;
258 int flags; 273 int flags;
259 void *fbdev; 274 struct fb_info *fbdev;
260 u32 pseudo_palette[17]; 275 u32 pseudo_palette[17];
261 struct list_head filp_head; 276 struct list_head filp_head;
262 /* if you are using the helper */ 277 /* if you are using the helper */
@@ -290,6 +305,7 @@ struct drm_property {
290struct drm_crtc; 305struct drm_crtc;
291struct drm_connector; 306struct drm_connector;
292struct drm_encoder; 307struct drm_encoder;
308struct drm_pending_vblank_event;
293 309
294/** 310/**
295 * drm_crtc_funcs - control CRTCs for a given device 311 * drm_crtc_funcs - control CRTCs for a given device
@@ -333,6 +349,19 @@ struct drm_crtc_funcs {
333 void (*destroy)(struct drm_crtc *crtc); 349 void (*destroy)(struct drm_crtc *crtc);
334 350
335 int (*set_config)(struct drm_mode_set *set); 351 int (*set_config)(struct drm_mode_set *set);
352
353 /*
354 * Flip to the given framebuffer. This implements the page
355 * flip ioctl descibed in drm_mode.h, specifically, the
356 * implementation must return immediately and block all
357 * rendering to the current fb until the flip has completed.
358 * If userspace set the event flag in the ioctl, the event
359 * argument will point to an event to send back when the flip
360 * completes, otherwise it will be NULL.
361 */
362 int (*page_flip)(struct drm_crtc *crtc,
363 struct drm_framebuffer *fb,
364 struct drm_pending_vblank_event *event);
336}; 365};
337 366
338/** 367/**
@@ -596,6 +625,7 @@ struct drm_mode_config {
596 /* Optional properties */ 625 /* Optional properties */
597 struct drm_property *scaling_mode_property; 626 struct drm_property *scaling_mode_property;
598 struct drm_property *dithering_mode_property; 627 struct drm_property *dithering_mode_property;
628 struct drm_property *dirty_info_property;
599}; 629};
600 630
601#define obj_to_crtc(x) container_of(x, struct drm_crtc, base) 631#define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
@@ -667,6 +697,7 @@ extern void drm_mode_validate_size(struct drm_device *dev,
667extern void drm_mode_prune_invalid(struct drm_device *dev, 697extern void drm_mode_prune_invalid(struct drm_device *dev,
668 struct list_head *mode_list, bool verbose); 698 struct list_head *mode_list, bool verbose);
669extern void drm_mode_sort(struct list_head *mode_list); 699extern void drm_mode_sort(struct list_head *mode_list);
700extern int drm_mode_hsync(struct drm_display_mode *mode);
670extern int drm_mode_vrefresh(struct drm_display_mode *mode); 701extern int drm_mode_vrefresh(struct drm_display_mode *mode);
671extern void drm_mode_set_crtcinfo(struct drm_display_mode *p, 702extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
672 int adjust_flags); 703 int adjust_flags);
@@ -703,6 +734,7 @@ extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats
703 char *formats[]); 734 char *formats[]);
704extern int drm_mode_create_scaling_mode_property(struct drm_device *dev); 735extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
705extern int drm_mode_create_dithering_property(struct drm_device *dev); 736extern int drm_mode_create_dithering_property(struct drm_device *dev);
737extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
706extern char *drm_get_encoder_name(struct drm_encoder *encoder); 738extern char *drm_get_encoder_name(struct drm_encoder *encoder);
707 739
708extern int drm_mode_connector_attach_encoder(struct drm_connector *connector, 740extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
@@ -730,6 +762,8 @@ extern int drm_mode_rmfb(struct drm_device *dev,
730 void *data, struct drm_file *file_priv); 762 void *data, struct drm_file *file_priv);
731extern int drm_mode_getfb(struct drm_device *dev, 763extern int drm_mode_getfb(struct drm_device *dev,
732 void *data, struct drm_file *file_priv); 764 void *data, struct drm_file *file_priv);
765extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
766 void *data, struct drm_file *file_priv);
733extern int drm_mode_addmode_ioctl(struct drm_device *dev, 767extern int drm_mode_addmode_ioctl(struct drm_device *dev,
734 void *data, struct drm_file *file_priv); 768 void *data, struct drm_file *file_priv);
735extern int drm_mode_rmmode_ioctl(struct drm_device *dev, 769extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
@@ -756,6 +790,8 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
756extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, 790extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
757 void *data, struct drm_file *file_priv); 791 void *data, struct drm_file *file_priv);
758extern bool drm_detect_hdmi_monitor(struct edid *edid); 792extern bool drm_detect_hdmi_monitor(struct edid *edid);
793extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
794 void *data, struct drm_file *file_priv);
759extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, 795extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
760 int hdisplay, int vdisplay, int vrefresh, 796 int hdisplay, int vdisplay, int vrefresh,
761 bool reduced, bool interlaced, bool margins); 797 bool reduced, bool interlaced, bool margins);
diff --git a/drivers/gpu/drm/i915/intel_dp.h b/include/drm/drm_dp_helper.h
index 2b38054d3b6d..e49879ce95f9 100644
--- a/drivers/gpu/drm/i915/intel_dp.h
+++ b/include/drm/drm_dp_helper.h
@@ -20,8 +20,8 @@
20 * OF THIS SOFTWARE. 20 * OF THIS SOFTWARE.
21 */ 21 */
22 22
23#ifndef _INTEL_DP_H_ 23#ifndef _DRM_DP_HELPER_H_
24#define _INTEL_DP_H_ 24#define _DRM_DP_HELPER_H_
25 25
26/* From the VESA DisplayPort spec */ 26/* From the VESA DisplayPort spec */
27 27
@@ -130,15 +130,20 @@
130#define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK 0xc0 130#define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK 0xc0
131#define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT 6 131#define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT 6
132 132
133#define MODE_I2C_START 1
134#define MODE_I2C_WRITE 2
135#define MODE_I2C_READ 4
136#define MODE_I2C_STOP 8
137
133struct i2c_algo_dp_aux_data { 138struct i2c_algo_dp_aux_data {
134 bool running; 139 bool running;
135 u16 address; 140 u16 address;
136 int (*aux_ch) (struct i2c_adapter *adapter, 141 int (*aux_ch) (struct i2c_adapter *adapter,
137 uint8_t *send, int send_bytes, 142 int mode, uint8_t write_byte,
138 uint8_t *recv, int recv_bytes); 143 uint8_t *read_byte);
139}; 144};
140 145
141int 146int
142i2c_dp_aux_add_bus(struct i2c_adapter *adapter); 147i2c_dp_aux_add_bus(struct i2c_adapter *adapter);
143 148
144#endif /* _INTEL_DP_H_ */ 149#endif /* _DRM_DP_HELPER_H_ */
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 7d6c9a2dfcbb..d33c3e038606 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -106,6 +106,10 @@ struct detailed_data_color_point {
106 u8 wpindex2[3]; 106 u8 wpindex2[3];
107} __attribute__((packed)); 107} __attribute__((packed));
108 108
109struct cvt_timing {
110 u8 code[3];
111} __attribute__((packed));
112
109struct detailed_non_pixel { 113struct detailed_non_pixel {
110 u8 pad1; 114 u8 pad1;
111 u8 type; /* ff=serial, fe=string, fd=monitor range, fc=monitor name 115 u8 type; /* ff=serial, fe=string, fd=monitor range, fc=monitor name
@@ -117,9 +121,13 @@ struct detailed_non_pixel {
117 struct detailed_data_monitor_range range; 121 struct detailed_data_monitor_range range;
118 struct detailed_data_wpindex color; 122 struct detailed_data_wpindex color;
119 struct std_timing timings[5]; 123 struct std_timing timings[5];
124 struct cvt_timing cvt[4];
120 } data; 125 } data;
121} __attribute__((packed)); 126} __attribute__((packed));
122 127
128#define EDID_DETAIL_EST_TIMINGS 0xf7
129#define EDID_DETAIL_CVT_3BYTE 0xf8
130#define EDID_DETAIL_COLOR_MGMT_DATA 0xf9
123#define EDID_DETAIL_STD_MODES 0xfa 131#define EDID_DETAIL_STD_MODES 0xfa
124#define EDID_DETAIL_MONITOR_CPDATA 0xfb 132#define EDID_DETAIL_MONITOR_CPDATA 0xfb
125#define EDID_DETAIL_MONITOR_NAME 0xfc 133#define EDID_DETAIL_MONITOR_NAME 0xfc
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index 1f908416aedb..43009bc2e757 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -27,9 +27,6 @@
27#ifndef _DRM_MODE_H 27#ifndef _DRM_MODE_H
28#define _DRM_MODE_H 28#define _DRM_MODE_H
29 29
30#include <linux/kernel.h>
31#include <linux/types.h>
32
33#define DRM_DISPLAY_INFO_LEN 32 30#define DRM_DISPLAY_INFO_LEN 32
34#define DRM_CONNECTOR_NAME_LEN 32 31#define DRM_CONNECTOR_NAME_LEN 32
35#define DRM_DISPLAY_MODE_LEN 32 32#define DRM_DISPLAY_MODE_LEN 32
@@ -78,6 +75,11 @@
78#define DRM_MODE_DITHERING_OFF 0 75#define DRM_MODE_DITHERING_OFF 0
79#define DRM_MODE_DITHERING_ON 1 76#define DRM_MODE_DITHERING_ON 1
80 77
78/* Dirty info options */
79#define DRM_MODE_DIRTY_OFF 0
80#define DRM_MODE_DIRTY_ON 1
81#define DRM_MODE_DIRTY_ANNOTATE 2
82
81struct drm_mode_modeinfo { 83struct drm_mode_modeinfo {
82 __u32 clock; 84 __u32 clock;
83 __u16 hdisplay, hsync_start, hsync_end, htotal, hskew; 85 __u16 hdisplay, hsync_start, hsync_end, htotal, hskew;
@@ -225,6 +227,45 @@ struct drm_mode_fb_cmd {
225 __u32 handle; 227 __u32 handle;
226}; 228};
227 229
230#define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
231#define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
232#define DRM_MODE_FB_DIRTY_FLAGS 0x03
233
234/*
235 * Mark a region of a framebuffer as dirty.
236 *
237 * Some hardware does not automatically update display contents
238 * as a hardware or software draw to a framebuffer. This ioctl
239 * allows userspace to tell the kernel and the hardware what
240 * regions of the framebuffer have changed.
241 *
242 * The kernel or hardware is free to update more then just the
243 * region specified by the clip rects. The kernel or hardware
244 * may also delay and/or coalesce several calls to dirty into a
245 * single update.
246 *
247 * Userspace may annotate the updates, the annotates are a
248 * promise made by the caller that the change is either a copy
249 * of pixels or a fill of a single color in the region specified.
250 *
251 * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
252 * the number of updated regions are half of num_clips given,
253 * where the clip rects are paired in src and dst. The width and
254 * height of each one of the pairs must match.
255 *
256 * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
257 * promises that the region specified of the clip rects is filled
258 * completely with a single color as given in the color argument.
259 */
260
261struct drm_mode_fb_dirty_cmd {
262 __u32 fb_id;
263 __u32 flags;
264 __u32 color;
265 __u32 num_clips;
266 __u64 clips_ptr;
267};
268
228struct drm_mode_mode_cmd { 269struct drm_mode_mode_cmd {
229 __u32 connector_id; 270 __u32 connector_id;
230 struct drm_mode_modeinfo mode; 271 struct drm_mode_modeinfo mode;
@@ -268,4 +309,37 @@ struct drm_mode_crtc_lut {
268 __u64 blue; 309 __u64 blue;
269}; 310};
270 311
312#define DRM_MODE_PAGE_FLIP_EVENT 0x01
313#define DRM_MODE_PAGE_FLIP_FLAGS DRM_MODE_PAGE_FLIP_EVENT
314
315/*
316 * Request a page flip on the specified crtc.
317 *
318 * This ioctl will ask KMS to schedule a page flip for the specified
319 * crtc. Once any pending rendering targeting the specified fb (as of
320 * ioctl time) has completed, the crtc will be reprogrammed to display
321 * that fb after the next vertical refresh. The ioctl returns
322 * immediately, but subsequent rendering to the current fb will block
323 * in the execbuffer ioctl until the page flip happens. If a page
324 * flip is already pending as the ioctl is called, EBUSY will be
325 * returned.
326 *
327 * The ioctl supports one flag, DRM_MODE_PAGE_FLIP_EVENT, which will
328 * request that drm sends back a vblank event (see drm.h: struct
329 * drm_event_vblank) when the page flip is done. The user_data field
330 * passed in with this ioctl will be returned as the user_data field
331 * in the vblank event struct.
332 *
333 * The reserved field must be zero until we figure out something
334 * clever to use it for.
335 */
336
337struct drm_mode_crtc_page_flip {
338 __u32 crtc_id;
339 __u32 fb_id;
340 __u32 flags;
341 __u32 reserved;
342 __u64 user_data;
343};
344
271#endif 345#endif
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 7e0cb1da92e6..a04c3ab1d726 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -27,11 +27,11 @@
27#ifndef _I915_DRM_H_ 27#ifndef _I915_DRM_H_
28#define _I915_DRM_H_ 28#define _I915_DRM_H_
29 29
30#include "drm.h"
31
30/* Please note that modifications to all structs defined here are 32/* Please note that modifications to all structs defined here are
31 * subject to backwards-compatibility constraints. 33 * subject to backwards-compatibility constraints.
32 */ 34 */
33#include <linux/types.h>
34#include "drm.h"
35 35
36/* Each region is a minimum of 16k, and there are at most 255 of them. 36/* Each region is a minimum of 16k, and there are at most 255 of them.
37 */ 37 */
diff --git a/include/drm/mga_drm.h b/include/drm/mga_drm.h
index 325fd6fb4a42..3ffbc4798afa 100644
--- a/include/drm/mga_drm.h
+++ b/include/drm/mga_drm.h
@@ -35,7 +35,7 @@
35#ifndef __MGA_DRM_H__ 35#ifndef __MGA_DRM_H__
36#define __MGA_DRM_H__ 36#define __MGA_DRM_H__
37 37
38#include <linux/types.h> 38#include "drm.h"
39 39
40/* WARNING: If you change any of these defines, make sure to change the 40/* WARNING: If you change any of these defines, make sure to change the
41 * defines in the Xserver file (mga_sarea.h) 41 * defines in the Xserver file (mga_sarea.h)
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index 3b9932ab1756..39537f3cf98a 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -33,7 +33,7 @@
33#ifndef __RADEON_DRM_H__ 33#ifndef __RADEON_DRM_H__
34#define __RADEON_DRM_H__ 34#define __RADEON_DRM_H__
35 35
36#include <linux/types.h> 36#include "drm.h"
37 37
38/* WARNING: If you change any of these defines, make sure to change the 38/* WARNING: If you change any of these defines, make sure to change the
39 * defines in the X server file (radeon_sarea.h) 39 * defines in the X server file (radeon_sarea.h)
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index e8cd6d20aed2..7a39ab9aa1d1 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -545,6 +545,15 @@ extern int ttm_tt_set_user(struct ttm_tt *ttm,
545extern int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem); 545extern int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem);
546 546
547/** 547/**
548 * ttm_tt_populate:
549 *
550 * @ttm: The struct ttm_tt to contain the backing pages.
551 *
552 * Add backing pages to all of @ttm
553 */
554extern int ttm_tt_populate(struct ttm_tt *ttm);
555
556/**
548 * ttm_ttm_destroy: 557 * ttm_ttm_destroy:
549 * 558 *
550 * @ttm: The struct ttm_tt. 559 * @ttm: The struct ttm_tt.
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
new file mode 100644
index 000000000000..cd2c475da9ea
--- /dev/null
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -0,0 +1,107 @@
1/**************************************************************************
2 *
3 * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
29 */
30
31#ifndef _TTM_EXECBUF_UTIL_H_
32#define _TTM_EXECBUF_UTIL_H_
33
34#include "ttm/ttm_bo_api.h"
35#include <linux/list.h>
36
37/**
38 * struct ttm_validate_buffer
39 *
40 * @head: list head for thread-private list.
41 * @bo: refcounted buffer object pointer.
42 * @new_sync_obj_arg: New sync_obj_arg for @bo, to be used once
43 * adding a new sync object.
44 * @reservied: Indicates whether @bo has been reserved for validation.
45 */
46
47struct ttm_validate_buffer {
48 struct list_head head;
49 struct ttm_buffer_object *bo;
50 void *new_sync_obj_arg;
51 bool reserved;
52};
53
54/**
55 * function ttm_eu_backoff_reservation
56 *
57 * @list: thread private list of ttm_validate_buffer structs.
58 *
59 * Undoes all buffer validation reservations for bos pointed to by
60 * the list entries.
61 */
62
63extern void ttm_eu_backoff_reservation(struct list_head *list);
64
65/**
66 * function ttm_eu_reserve_buffers
67 *
68 * @list: thread private list of ttm_validate_buffer structs.
69 * @val_seq: A unique sequence number.
70 *
71 * Tries to reserve bos pointed to by the list entries for validation.
72 * If the function returns 0, all buffers are marked as "unfenced",
73 * taken off the lru lists and are not synced for write CPU usage.
74 *
75 * If the function detects a deadlock due to multiple threads trying to
76 * reserve the same buffers in reverse order, all threads except one will
77 * back off and retry. This function may sleep while waiting for
78 * CPU write reservations to be cleared, and for other threads to
79 * unreserve their buffers.
80 *
81 * This function may return -ERESTART or -EAGAIN if the calling process
82 * receives a signal while waiting. In that case, no buffers on the list
83 * will be reserved upon return.
84 *
85 * Buffers reserved by this function should be unreserved by
86 * a call to either ttm_eu_backoff_reservation() or
87 * ttm_eu_fence_buffer_objects() when command submission is complete or
88 * has failed.
89 */
90
91extern int ttm_eu_reserve_buffers(struct list_head *list, uint32_t val_seq);
92
93/**
94 * function ttm_eu_fence_buffer_objects.
95 *
96 * @list: thread private list of ttm_validate_buffer structs.
97 * @sync_obj: The new sync object for the buffers.
98 *
99 * This function should be called when command submission is complete, and
100 * it will add a new sync object to bos pointed to by entries on @list.
101 * It also unreserves all buffers, putting them on lru lists.
102 *
103 */
104
105extern void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj);
106
107#endif
diff --git a/include/drm/ttm/ttm_lock.h b/include/drm/ttm/ttm_lock.h
new file mode 100644
index 000000000000..81ba0b0b891a
--- /dev/null
+++ b/include/drm/ttm/ttm_lock.h
@@ -0,0 +1,247 @@
1/**************************************************************************
2 *
3 * Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
29 */
30
31/** @file ttm_lock.h
32 * This file implements a simple replacement for the buffer manager use
33 * of the DRM heavyweight hardware lock.
34 * The lock is a read-write lock. Taking it in read mode and write mode
35 * is relatively fast, and intended for in-kernel use only.
36 *
37 * The vt mode is used only when there is a need to block all
38 * user-space processes from validating buffers.
39 * It's allowed to leave kernel space with the vt lock held.
40 * If a user-space process dies while having the vt-lock,
41 * it will be released during the file descriptor release. The vt lock
42 * excludes write lock and read lock.
43 *
44 * The suspend mode is used to lock out all TTM users when preparing for
45 * and executing suspend operations.
46 *
47 */
48
49#ifndef _TTM_LOCK_H_
50#define _TTM_LOCK_H_
51
52#include "ttm/ttm_object.h"
53#include <linux/wait.h>
54#include <asm/atomic.h>
55
56/**
57 * struct ttm_lock
58 *
59 * @base: ttm base object used solely to release the lock if the client
60 * holding the lock dies.
61 * @queue: Queue for processes waiting for lock change-of-status.
62 * @lock: Spinlock protecting some lock members.
63 * @rw: Read-write lock counter. Protected by @lock.
64 * @flags: Lock state. Protected by @lock.
65 * @kill_takers: Boolean whether to kill takers of the lock.
66 * @signal: Signal to send when kill_takers is true.
67 */
68
69struct ttm_lock {
70 struct ttm_base_object base;
71 wait_queue_head_t queue;
72 spinlock_t lock;
73 int32_t rw;
74 uint32_t flags;
75 bool kill_takers;
76 int signal;
77 struct ttm_object_file *vt_holder;
78};
79
80
81/**
82 * ttm_lock_init
83 *
84 * @lock: Pointer to a struct ttm_lock
85 * Initializes the lock.
86 */
87extern void ttm_lock_init(struct ttm_lock *lock);
88
89/**
90 * ttm_read_unlock
91 *
92 * @lock: Pointer to a struct ttm_lock
93 *
94 * Releases a read lock.
95 */
96extern void ttm_read_unlock(struct ttm_lock *lock);
97
98/**
99 * ttm_read_lock
100 *
101 * @lock: Pointer to a struct ttm_lock
102 * @interruptible: Interruptible sleeping while waiting for a lock.
103 *
104 * Takes the lock in read mode.
105 * Returns:
106 * -ERESTARTSYS If interrupted by a signal and interruptible is true.
107 */
108extern int ttm_read_lock(struct ttm_lock *lock, bool interruptible);
109
110/**
111 * ttm_read_trylock
112 *
113 * @lock: Pointer to a struct ttm_lock
114 * @interruptible: Interruptible sleeping while waiting for a lock.
115 *
116 * Tries to take the lock in read mode. If the lock is already held
117 * in write mode, the function will return -EBUSY. If the lock is held
118 * in vt or suspend mode, the function will sleep until these modes
119 * are unlocked.
120 *
121 * Returns:
122 * -EBUSY The lock was already held in write mode.
123 * -ERESTARTSYS If interrupted by a signal and interruptible is true.
124 */
125extern int ttm_read_trylock(struct ttm_lock *lock, bool interruptible);
126
127/**
128 * ttm_write_unlock
129 *
130 * @lock: Pointer to a struct ttm_lock
131 *
132 * Releases a write lock.
133 */
134extern void ttm_write_unlock(struct ttm_lock *lock);
135
136/**
137 * ttm_write_lock
138 *
139 * @lock: Pointer to a struct ttm_lock
140 * @interruptible: Interruptible sleeping while waiting for a lock.
141 *
142 * Takes the lock in write mode.
143 * Returns:
144 * -ERESTARTSYS If interrupted by a signal and interruptible is true.
145 */
146extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible);
147
148/**
149 * ttm_lock_downgrade
150 *
151 * @lock: Pointer to a struct ttm_lock
152 *
153 * Downgrades a write lock to a read lock.
154 */
155extern void ttm_lock_downgrade(struct ttm_lock *lock);
156
157/**
158 * ttm_suspend_lock
159 *
160 * @lock: Pointer to a struct ttm_lock
161 *
162 * Takes the lock in suspend mode. Excludes read and write mode.
163 */
164extern void ttm_suspend_lock(struct ttm_lock *lock);
165
166/**
167 * ttm_suspend_unlock
168 *
169 * @lock: Pointer to a struct ttm_lock
170 *
171 * Releases a suspend lock
172 */
173extern void ttm_suspend_unlock(struct ttm_lock *lock);
174
175/**
176 * ttm_vt_lock
177 *
178 * @lock: Pointer to a struct ttm_lock
179 * @interruptible: Interruptible sleeping while waiting for a lock.
180 * @tfile: Pointer to a struct ttm_object_file to register the lock with.
181 *
182 * Takes the lock in vt mode.
183 * Returns:
184 * -ERESTARTSYS If interrupted by a signal and interruptible is true.
185 * -ENOMEM: Out of memory when locking.
186 */
187extern int ttm_vt_lock(struct ttm_lock *lock, bool interruptible,
188 struct ttm_object_file *tfile);
189
190/**
191 * ttm_vt_unlock
192 *
193 * @lock: Pointer to a struct ttm_lock
194 *
195 * Releases a vt lock.
196 * Returns:
197 * -EINVAL If the lock was not held.
198 */
199extern int ttm_vt_unlock(struct ttm_lock *lock);
200
201/**
202 * ttm_write_unlock
203 *
204 * @lock: Pointer to a struct ttm_lock
205 *
206 * Releases a write lock.
207 */
208extern void ttm_write_unlock(struct ttm_lock *lock);
209
210/**
211 * ttm_write_lock
212 *
213 * @lock: Pointer to a struct ttm_lock
214 * @interruptible: Interruptible sleeping while waiting for a lock.
215 *
216 * Takes the lock in write mode.
217 * Returns:
218 * -ERESTARTSYS If interrupted by a signal and interruptible is true.
219 */
220extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible);
221
222/**
223 * ttm_lock_set_kill
224 *
225 * @lock: Pointer to a struct ttm_lock
226 * @val: Boolean whether to kill processes taking the lock.
227 * @signal: Signal to send to the process taking the lock.
228 *
229 * The kill-when-taking-lock functionality is used to kill processes that keep
230 * on using the TTM functionality when its resources has been taken down, for
231 * example when the X server exits. A typical sequence would look like this:
232 * - X server takes lock in write mode.
233 * - ttm_lock_set_kill() is called with @val set to true.
234 * - As part of X server exit, TTM resources are taken down.
235 * - X server releases the lock on file release.
236 * - Another dri client wants to render, takes the lock and is killed.
237 *
238 */
239static inline void ttm_lock_set_kill(struct ttm_lock *lock, bool val,
240 int signal)
241{
242 lock->kill_takers = val;
243 if (val)
244 lock->signal = signal;
245}
246
247#endif
diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
index 6983a7cf4da4..b199170b3c2c 100644
--- a/include/drm/ttm/ttm_memory.h
+++ b/include/drm/ttm/ttm_memory.h
@@ -33,6 +33,7 @@
33#include <linux/wait.h> 33#include <linux/wait.h>
34#include <linux/errno.h> 34#include <linux/errno.h>
35#include <linux/kobject.h> 35#include <linux/kobject.h>
36#include <linux/mm.h>
36 37
37/** 38/**
38 * struct ttm_mem_shrink - callback to shrink TTM memory usage. 39 * struct ttm_mem_shrink - callback to shrink TTM memory usage.
diff --git a/include/drm/ttm/ttm_object.h b/include/drm/ttm/ttm_object.h
new file mode 100644
index 000000000000..703ca4db0a29
--- /dev/null
+++ b/include/drm/ttm/ttm_object.h
@@ -0,0 +1,267 @@
1/**************************************************************************
2 *
3 * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
29 */
30/** @file ttm_object.h
31 *
32 * Base- and reference object implementation for the various
33 * ttm objects. Implements reference counting, minimal security checks
34 * and release on file close.
35 */
36
37#ifndef _TTM_OBJECT_H_
38#define _TTM_OBJECT_H_
39
40#include <linux/list.h>
41#include "drm_hashtab.h"
42#include <linux/kref.h>
43#include <ttm/ttm_memory.h>
44
45/**
46 * enum ttm_ref_type
47 *
48 * Describes what type of reference a ref object holds.
49 *
50 * TTM_REF_USAGE is a simple refcount on a base object.
51 *
52 * TTM_REF_SYNCCPU_READ is a SYNCCPU_READ reference on a
53 * buffer object.
54 *
55 * TTM_REF_SYNCCPU_WRITE is a SYNCCPU_WRITE reference on a
56 * buffer object.
57 *
58 */
59
60enum ttm_ref_type {
61 TTM_REF_USAGE,
62 TTM_REF_SYNCCPU_READ,
63 TTM_REF_SYNCCPU_WRITE,
64 TTM_REF_NUM
65};
66
67/**
68 * enum ttm_object_type
69 *
70 * One entry per ttm object type.
71 * Device-specific types should use the
72 * ttm_driver_typex types.
73 */
74
75enum ttm_object_type {
76 ttm_fence_type,
77 ttm_buffer_type,
78 ttm_lock_type,
79 ttm_driver_type0 = 256,
80 ttm_driver_type1
81};
82
83struct ttm_object_file;
84struct ttm_object_device;
85
86/**
87 * struct ttm_base_object
88 *
89 * @hash: hash entry for the per-device object hash.
90 * @type: derived type this object is base class for.
91 * @shareable: Other ttm_object_files can access this object.
92 *
93 * @tfile: Pointer to ttm_object_file of the creator.
94 * NULL if the object was not created by a user request.
95 * (kernel object).
96 *
97 * @refcount: Number of references to this object, not
98 * including the hash entry. A reference to a base object can
99 * only be held by a ref object.
100 *
101 * @refcount_release: A function to be called when there are
102 * no more references to this object. This function should
103 * destroy the object (or make sure destruction eventually happens),
104 * and when it is called, the object has
105 * already been taken out of the per-device hash. The parameter
106 * "base" should be set to NULL by the function.
107 *
108 * @ref_obj_release: A function to be called when a reference object
109 * with another ttm_ref_type than TTM_REF_USAGE is deleted.
110 * this function may, for example, release a lock held by a user-space
111 * process.
112 *
113 * This struct is intended to be used as a base struct for objects that
114 * are visible to user-space. It provides a global name, race-safe
115 * access and refcounting, minimal access contol and hooks for unref actions.
116 */
117
118struct ttm_base_object {
119 struct drm_hash_item hash;
120 enum ttm_object_type object_type;
121 bool shareable;
122 struct ttm_object_file *tfile;
123 struct kref refcount;
124 void (*refcount_release) (struct ttm_base_object **base);
125 void (*ref_obj_release) (struct ttm_base_object *base,
126 enum ttm_ref_type ref_type);
127};
128
129/**
130 * ttm_base_object_init
131 *
132 * @tfile: Pointer to a struct ttm_object_file.
133 * @base: The struct ttm_base_object to initialize.
134 * @shareable: This object is shareable with other applcations.
135 * (different @tfile pointers.)
136 * @type: The object type.
137 * @refcount_release: See the struct ttm_base_object description.
138 * @ref_obj_release: See the struct ttm_base_object description.
139 *
140 * Initializes a struct ttm_base_object.
141 */
142
143extern int ttm_base_object_init(struct ttm_object_file *tfile,
144 struct ttm_base_object *base,
145 bool shareable,
146 enum ttm_object_type type,
147 void (*refcount_release) (struct ttm_base_object
148 **),
149 void (*ref_obj_release) (struct ttm_base_object
150 *,
151 enum ttm_ref_type
152 ref_type));
153
154/**
155 * ttm_base_object_lookup
156 *
157 * @tfile: Pointer to a struct ttm_object_file.
158 * @key: Hash key
159 *
160 * Looks up a struct ttm_base_object with the key @key.
161 * Also verifies that the object is visible to the application, by
162 * comparing the @tfile argument and checking the object shareable flag.
163 */
164
165extern struct ttm_base_object *ttm_base_object_lookup(struct ttm_object_file
166 *tfile, uint32_t key);
167
168/**
169 * ttm_base_object_unref
170 *
171 * @p_base: Pointer to a pointer referncing a struct ttm_base_object.
172 *
173 * Decrements the base object refcount and clears the pointer pointed to by
174 * p_base.
175 */
176
177extern void ttm_base_object_unref(struct ttm_base_object **p_base);
178
179/**
180 * ttm_ref_object_add.
181 *
182 * @tfile: A struct ttm_object_file representing the application owning the
183 * ref_object.
184 * @base: The base object to reference.
185 * @ref_type: The type of reference.
186 * @existed: Upon completion, indicates that an identical reference object
187 * already existed, and the refcount was upped on that object instead.
188 *
189 * Adding a ref object to a base object is basically like referencing the
190 * base object, but a user-space application holds the reference. When the
191 * file corresponding to @tfile is closed, all its reference objects are
192 * deleted. A reference object can have different types depending on what
193 * it's intended for. It can be refcounting to prevent object destruction,
194 * When user-space takes a lock, it can add a ref object to that lock to
195 * make sure the lock is released if the application dies. A ref object
196 * will hold a single reference on a base object.
197 */
198extern int ttm_ref_object_add(struct ttm_object_file *tfile,
199 struct ttm_base_object *base,
200 enum ttm_ref_type ref_type, bool *existed);
201/**
202 * ttm_ref_object_base_unref
203 *
204 * @key: Key representing the base object.
205 * @ref_type: Ref type of the ref object to be dereferenced.
206 *
207 * Unreference a ref object with type @ref_type
208 * on the base object identified by @key. If there are no duplicate
209 * references, the ref object will be destroyed and the base object
210 * will be unreferenced.
211 */
212extern int ttm_ref_object_base_unref(struct ttm_object_file *tfile,
213 unsigned long key,
214 enum ttm_ref_type ref_type);
215
216/**
217 * ttm_object_file_init - initialize a struct ttm_object file
218 *
219 * @tdev: A struct ttm_object device this file is initialized on.
220 * @hash_order: Order of the hash table used to hold the reference objects.
221 *
222 * This is typically called by the file_ops::open function.
223 */
224
225extern struct ttm_object_file *ttm_object_file_init(struct ttm_object_device
226 *tdev,
227 unsigned int hash_order);
228
229/**
230 * ttm_object_file_release - release data held by a ttm_object_file
231 *
232 * @p_tfile: Pointer to pointer to the ttm_object_file object to release.
233 * *p_tfile will be set to NULL by this function.
234 *
235 * Releases all data associated by a ttm_object_file.
236 * Typically called from file_ops::release. The caller must
237 * ensure that there are no concurrent users of tfile.
238 */
239
240extern void ttm_object_file_release(struct ttm_object_file **p_tfile);
241
242/**
243 * ttm_object device init - initialize a struct ttm_object_device
244 *
245 * @hash_order: Order of hash table used to hash the base objects.
246 *
247 * This function is typically called on device initialization to prepare
248 * data structures needed for ttm base and ref objects.
249 */
250
251extern struct ttm_object_device *ttm_object_device_init
252 (struct ttm_mem_global *mem_glob, unsigned int hash_order);
253
254/**
255 * ttm_object_device_release - release data held by a ttm_object_device
256 *
257 * @p_tdev: Pointer to pointer to the ttm_object_device object to release.
258 * *p_tdev will be set to NULL by this function.
259 *
260 * Releases all data associated by a ttm_object_device.
261 * Typically called from driver::unload before the destruction of the
262 * device private data structure.
263 */
264
265extern void ttm_object_device_release(struct ttm_object_device **p_tdev);
266
267#endif
diff --git a/include/drm/via_drm.h b/include/drm/via_drm.h
index 170786e5c2ff..fd11a5bd892d 100644
--- a/include/drm/via_drm.h
+++ b/include/drm/via_drm.h
@@ -24,7 +24,7 @@
24#ifndef _VIA_DRM_H_ 24#ifndef _VIA_DRM_H_
25#define _VIA_DRM_H_ 25#define _VIA_DRM_H_
26 26
27#include <linux/types.h> 27#include "drm.h"
28 28
29/* WARNING: These defines must be the same as what the Xserver uses. 29/* WARNING: These defines must be the same as what the Xserver uses.
30 * if you change them, you must change the defines in the Xserver. 30 * if you change them, you must change the defines in the Xserver.
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-03 21:50:16 -0400