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mutter-performance-source/src/backends/native/meta-monitor-manager-kms.c
Jonas Ådahl 8bebb8126c Let MetaMonitorManagerKms handle page flips 
This commit completes the move of monitor logic to the monitor
mangager. The renderer now only deals with framebuffers, asking the
monitor manager to do the crtc flip tracking.

https://bugzilla.gnome.org/show_bug.cgi?id=768976
2016-07-20 14:23:48 +08:00

1515 lines
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2013 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Author: Giovanni Campagna <gcampagn@redhat.com>
*/
#include "config.h"
#include "meta-monitor-manager-kms.h"
#include "meta-monitor-config.h"
#include "meta-backend-private.h"
#include "meta-renderer-native.h"
#include <string.h>
#include <stdlib.h>
#include <clutter/clutter.h>
#include <drm.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <unistd.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <meta/main.h>
#include <meta/errors.h>
#include <gudev/gudev.h>
#define ALL_TRANSFORMS (META_MONITOR_TRANSFORM_FLIPPED_270 + 1)
typedef struct {
drmModeConnector *connector;
unsigned n_encoders;
drmModeEncoderPtr *encoders;
drmModeEncoderPtr current_encoder;
/* bitmasks of encoder position in the resources array */
uint32_t encoder_mask;
uint32_t enc_clone_mask;
uint32_t dpms_prop_id;
uint32_t edid_blob_id;
uint32_t tile_blob_id;
int suggested_x;
int suggested_y;
uint32_t hotplug_mode_update;
} MetaOutputKms;
typedef struct {
uint32_t underscan_prop_id;
uint32_t underscan_hborder_prop_id;
uint32_t underscan_vborder_prop_id;
uint32_t primary_plane_id;
uint32_t rotation_prop_id;
uint32_t rotation_map[ALL_TRANSFORMS];
} MetaCRTCKms;
typedef struct
{
int pending;
MetaKmsFlipCallback callback;
void *user_data;
} MetaKmsFlipClosure;
typedef struct
{
GSource source;
gpointer fd_tag;
MetaMonitorManagerKms *manager_kms;
} MetaKmsSource;
struct _MetaMonitorManagerKms
{
MetaMonitorManager parent_instance;
int fd;
MetaKmsSource *source;
drmModeConnector **connectors;
unsigned int n_connectors;
GUdevClient *udev;
GSettings *desktop_settings;
gboolean page_flips_not_supported;
};
struct _MetaMonitorManagerKmsClass
{
MetaMonitorManagerClass parent_class;
};
G_DEFINE_TYPE (MetaMonitorManagerKms, meta_monitor_manager_kms, META_TYPE_MONITOR_MANAGER);
static void
free_resources (MetaMonitorManagerKms *manager_kms)
{
unsigned i;
for (i = 0; i < manager_kms->n_connectors; i++)
drmModeFreeConnector (manager_kms->connectors[i]);
g_free (manager_kms->connectors);
}
static int
compare_outputs (const void *one,
const void *two)
{
const MetaOutput *o_one = one, *o_two = two;
return strcmp (o_one->name, o_two->name);
}
static char *
make_output_name (drmModeConnector *connector)
{
static const char * const connector_type_names[] = {
"unknown", "VGA", "DVII", "DVID", "DVID", "Composite",
"SVIDEO", "LVDS", "Component", "9PinDIN", "DisplayPort",
"HDMIA", "HDMIB", "TV", "eDP", "Virtual", "DSI"
};
const char *connector_type_name;
if (connector->connector_type < G_N_ELEMENTS (connector_type_names))
connector_type_name = connector_type_names[connector->connector_type];
else
connector_type_name = "unknown";
return g_strdup_printf ("%s%d", connector_type_name, connector->connector_id);
}
static void
meta_output_destroy_notify (MetaOutput *output)
{
MetaOutputKms *output_kms;
unsigned i;
output_kms = output->driver_private;
for (i = 0; i < output_kms->n_encoders; i++)
drmModeFreeEncoder (output_kms->encoders[i]);
g_free (output_kms->encoders);
g_slice_free (MetaOutputKms, output_kms);
}
static void
meta_monitor_mode_destroy_notify (MetaMonitorMode *output)
{
g_slice_free (drmModeModeInfo, output->driver_private);
}
static void
meta_crtc_destroy_notify (MetaCRTC *crtc)
{
g_free (crtc->driver_private);
}
static gboolean
drm_mode_equal (gconstpointer one,
gconstpointer two)
{
const drmModeModeInfo *m_one = one;
const drmModeModeInfo *m_two = two;
return m_one->clock == m_two->clock &&
m_one->hdisplay == m_two->hdisplay &&
m_one->hsync_start == m_two->hsync_start &&
m_one->hsync_end == m_two->hsync_end &&
m_one->htotal == m_two->htotal &&
m_one->hskew == m_two->hskew &&
m_one->vdisplay == m_two->vdisplay &&
m_one->vsync_start == m_two->vsync_start &&
m_one->vsync_end == m_two->vsync_end &&
m_one->vtotal == m_two->vtotal &&
m_one->vscan == m_two->vscan &&
m_one->vrefresh == m_two->vrefresh &&
m_one->flags == m_two->flags &&
m_one->type == m_two->type &&
strncmp (m_one->name, m_two->name, DRM_DISPLAY_MODE_LEN) == 0;
}
static guint
drm_mode_hash (gconstpointer ptr)
{
const drmModeModeInfo *mode = ptr;
guint hash = 0;
/* We don't include the name in the hash because it's generally
derived from the other fields (hdisplay, vdisplay and flags)
*/
hash ^= mode->clock;
hash ^= mode->hdisplay ^ mode->hsync_start ^ mode->hsync_end;
hash ^= mode->vdisplay ^ mode->vsync_start ^ mode->vsync_end;
hash ^= mode->vrefresh;
hash ^= mode->flags ^ mode->type;
return hash;
}
static void
find_connector_properties (MetaMonitorManagerKms *manager_kms,
MetaOutputKms *output_kms)
{
int i;
output_kms->hotplug_mode_update = 0;
output_kms->suggested_x = -1;
output_kms->suggested_y = -1;
for (i = 0; i < output_kms->connector->count_props; i++)
{
drmModePropertyPtr prop = drmModeGetProperty (manager_kms->fd, output_kms->connector->props[i]);
if (!prop)
continue;
if ((prop->flags & DRM_MODE_PROP_ENUM) && strcmp (prop->name, "DPMS") == 0)
output_kms->dpms_prop_id = prop->prop_id;
else if ((prop->flags & DRM_MODE_PROP_BLOB) && strcmp (prop->name, "EDID") == 0)
output_kms->edid_blob_id = output_kms->connector->prop_values[i];
else if ((prop->flags & DRM_MODE_PROP_BLOB) &&
strcmp (prop->name, "TILE") == 0)
output_kms->tile_blob_id = output_kms->connector->prop_values[i];
else if ((prop->flags & DRM_MODE_PROP_RANGE) &&
strcmp (prop->name, "suggested X") == 0)
output_kms->suggested_x = output_kms->connector->prop_values[i];
else if ((prop->flags & DRM_MODE_PROP_RANGE) &&
strcmp (prop->name, "suggested Y") == 0)
output_kms->suggested_y = output_kms->connector->prop_values[i];
else if ((prop->flags & DRM_MODE_PROP_RANGE) &&
strcmp (prop->name, "hotplug_mode_update") == 0)
output_kms->hotplug_mode_update = output_kms->connector->prop_values[i];
drmModeFreeProperty (prop);
}
}
static void
find_crtc_properties (MetaMonitorManagerKms *manager_kms,
MetaCRTC *meta_crtc)
{
MetaCRTCKms *crtc_kms;
drmModeObjectPropertiesPtr props;
size_t i;
crtc_kms = meta_crtc->driver_private;
props = drmModeObjectGetProperties (manager_kms->fd, meta_crtc->crtc_id, DRM_MODE_OBJECT_CRTC);
if (!props)
return;
for (i = 0; i < props->count_props; i++)
{
drmModePropertyPtr prop = drmModeGetProperty (manager_kms->fd, props->props[i]);
if (!prop)
continue;
if ((prop->flags & DRM_MODE_PROP_ENUM) && strcmp (prop->name, "underscan") == 0)
crtc_kms->underscan_prop_id = prop->prop_id;
else if ((prop->flags & DRM_MODE_PROP_RANGE) && strcmp (prop->name, "underscan hborder") == 0)
crtc_kms->underscan_hborder_prop_id = prop->prop_id;
else if ((prop->flags & DRM_MODE_PROP_RANGE) && strcmp (prop->name, "underscan vborder") == 0)
crtc_kms->underscan_vborder_prop_id = prop->prop_id;
drmModeFreeProperty (prop);
}
}
static GBytes *
read_output_edid (MetaMonitorManagerKms *manager_kms,
MetaOutput *output)
{
MetaOutputKms *output_kms = output->driver_private;
drmModePropertyBlobPtr edid_blob = NULL;
if (output_kms->edid_blob_id == 0)
return NULL;
edid_blob = drmModeGetPropertyBlob (manager_kms->fd, output_kms->edid_blob_id);
if (!edid_blob)
{
meta_warning ("Failed to read EDID of output %s: %s\n", output->name, strerror(errno));
return NULL;
}
if (edid_blob->length > 0)
{
return g_bytes_new_with_free_func (edid_blob->data, edid_blob->length,
(GDestroyNotify)drmModeFreePropertyBlob, edid_blob);
}
else
{
drmModeFreePropertyBlob (edid_blob);
return NULL;
}
}
static gboolean
output_get_tile_info (MetaMonitorManagerKms *manager_kms,
MetaOutput *output)
{
MetaOutputKms *output_kms = output->driver_private;
drmModePropertyBlobPtr tile_blob = NULL;
int ret;
if (output_kms->tile_blob_id == 0)
return FALSE;
tile_blob = drmModeGetPropertyBlob (manager_kms->fd, output_kms->tile_blob_id);
if (!tile_blob)
{
meta_warning ("Failed to read TILE of output %s: %s\n", output->name, strerror(errno));
return FALSE;
}
if (tile_blob->length > 0)
{
ret = sscanf ((char *)tile_blob->data, "%d:%d:%d:%d:%d:%d:%d:%d",
&output->tile_info.group_id,
&output->tile_info.flags,
&output->tile_info.max_h_tiles,
&output->tile_info.max_v_tiles,
&output->tile_info.loc_h_tile,
&output->tile_info.loc_v_tile,
&output->tile_info.tile_w,
&output->tile_info.tile_h);
if (ret != 8)
return FALSE;
return TRUE;
}
else
{
drmModeFreePropertyBlob (tile_blob);
return FALSE;
}
}
static MetaMonitorMode *
find_meta_mode (MetaMonitorManager *manager,
const drmModeModeInfo *drm_mode)
{
unsigned k;
for (k = 0; k < manager->n_modes; k++)
{
if (drm_mode_equal (drm_mode, manager->modes[k].driver_private))
return &manager->modes[k];
}
g_assert_not_reached ();
return NULL;
}
static MetaOutput *
find_output_by_id (MetaOutput *outputs,
unsigned n_outputs,
glong id)
{
unsigned i;
for (i = 0; i < n_outputs; i++)
if (outputs[i].winsys_id == id)
return &outputs[i];
return NULL;
}
/* The minimum resolution at which we turn on a window-scale of 2 */
#define HIDPI_LIMIT 192
/* The minimum screen height at which we turn on a window-scale of 2;
* below this there just isn't enough vertical real estate for GNOME
* apps to work, and it's better to just be tiny */
#define HIDPI_MIN_HEIGHT 1200
/* From http://en.wikipedia.org/wiki/4K_resolution#Resolutions_of_common_formats */
#define SMALLEST_4K_WIDTH 3656
/* Based on code from gnome-settings-daemon */
static int
compute_scale (MetaOutput *output)
{
int scale = 1;
if (!output->crtc)
goto out;
/* Scaling makes no sense */
if (output->crtc->rect.width < HIDPI_MIN_HEIGHT)
goto out;
/* 4K TV */
if (output->name != NULL && strstr(output->name, "HDMI") != NULL &&
output->crtc->rect.width >= SMALLEST_4K_WIDTH)
goto out;
/* Somebody encoded the aspect ratio (16/9 or 16/10)
* instead of the physical size */
if ((output->width_mm == 160 && output->height_mm == 90) ||
(output->width_mm == 160 && output->height_mm == 100) ||
(output->width_mm == 16 && output->height_mm == 9) ||
(output->width_mm == 16 && output->height_mm == 10))
goto out;
if (output->width_mm > 0 && output->height_mm > 0)
{
double dpi_x, dpi_y;
dpi_x = (double)output->crtc->rect.width / (output->width_mm / 25.4);
dpi_y = (double)output->crtc->rect.height / (output->height_mm / 25.4);
/* We don't completely trust these values so both
must be high, and never pick higher ratio than
2 automatically */
if (dpi_x > HIDPI_LIMIT && dpi_y > HIDPI_LIMIT)
scale = 2;
}
out:
return scale;
}
static int
get_output_scale (MetaMonitorManager *manager,
MetaOutput *output)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
int scale = g_settings_get_uint (manager_kms->desktop_settings, "scaling-factor");
if (scale > 0)
return scale;
else
return compute_scale (output);
}
static int
find_property_index (MetaMonitorManager *manager,
drmModeObjectPropertiesPtr props,
const gchar *prop_name,
drmModePropertyPtr *found)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
unsigned int i;
for (i = 0; i < props->count_props; i++)
{
drmModePropertyPtr prop;
prop = drmModeGetProperty (manager_kms->fd, props->props[i]);
if (!prop)
continue;
if (strcmp (prop->name, prop_name) == 0)
{
*found = prop;
return i;
}
drmModeFreeProperty (prop);
}
return -1;
}
static void
parse_transforms (MetaMonitorManager *manager,
drmModePropertyPtr prop,
MetaCRTC *crtc)
{
MetaCRTCKms *crtc_kms = crtc->driver_private;
int i;
for (i = 0; i < prop->count_enums; i++)
{
int cur = -1;
if (strcmp (prop->enums[i].name, "rotate-0") == 0)
cur = META_MONITOR_TRANSFORM_NORMAL;
else if (strcmp (prop->enums[i].name, "rotate-90") == 0)
cur = META_MONITOR_TRANSFORM_90;
else if (strcmp (prop->enums[i].name, "rotate-180") == 0)
cur = META_MONITOR_TRANSFORM_180;
else if (strcmp (prop->enums[i].name, "rotate-270") == 0)
cur = META_MONITOR_TRANSFORM_270;
if (cur != -1)
{
crtc->all_transforms |= 1 << cur;
crtc_kms->rotation_map[cur] = 1 << prop->enums[i].value;
}
}
}
static gboolean
is_primary_plane (MetaMonitorManager *manager,
drmModeObjectPropertiesPtr props)
{
drmModePropertyPtr prop;
int idx;
idx = find_property_index (manager, props, "type", &prop);
if (idx < 0)
return FALSE;
drmModeFreeProperty (prop);
return props->prop_values[idx] == DRM_PLANE_TYPE_PRIMARY;
}
static void
init_crtc_rotations (MetaMonitorManager *manager,
MetaCRTC *crtc,
unsigned int idx)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
drmModeObjectPropertiesPtr props;
drmModePlaneRes *planes;
drmModePlane *drm_plane;
MetaCRTCKms *crtc_kms;
unsigned int i;
crtc_kms = crtc->driver_private;
planes = drmModeGetPlaneResources(manager_kms->fd);
if (planes == NULL)
return;
for (i = 0; i < planes->count_planes; i++)
{
drmModePropertyPtr prop;
drm_plane = drmModeGetPlane (manager_kms->fd, planes->planes[i]);
if (!drm_plane)
continue;
if ((drm_plane->possible_crtcs & (1 << idx)))
{
props = drmModeObjectGetProperties (manager_kms->fd,
drm_plane->plane_id,
DRM_MODE_OBJECT_PLANE);
if (props && is_primary_plane (manager, props))
{
int rotation_idx;
crtc_kms->primary_plane_id = drm_plane->plane_id;
rotation_idx = find_property_index (manager, props, "rotation", &prop);
if (rotation_idx >= 0)
{
crtc_kms->rotation_prop_id = props->props[rotation_idx];
parse_transforms (manager, prop, crtc);
drmModeFreeProperty (prop);
}
}
if (props)
drmModeFreeObjectProperties (props);
}
drmModeFreePlane (drm_plane);
}
drmModeFreePlaneResources (planes);
}
static void
meta_monitor_manager_kms_read_current (MetaMonitorManager *manager)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
drmModeRes *resources;
drmModeEncoder **encoders;
GHashTable *modes;
GHashTableIter iter;
drmModeModeInfo *mode;
unsigned int i, j, k;
unsigned int n_actual_outputs;
int width, height;
MetaOutput *old_outputs;
unsigned int n_old_outputs;
resources = drmModeGetResources(manager_kms->fd);
modes = g_hash_table_new (drm_mode_hash, drm_mode_equal);
manager->max_screen_width = resources->max_width;
manager->max_screen_height = resources->max_height;
manager->power_save_mode = META_POWER_SAVE_ON;
old_outputs = manager->outputs;
n_old_outputs = manager->n_outputs;
/* Note: we must not free the public structures (output, crtc, monitor
mode and monitor info) here, they must be kept alive until the API
users are done with them after we emit monitors-changed, and thus
are freed by the platform-independent layer. */
free_resources (manager_kms);
manager_kms->n_connectors = resources->count_connectors;
manager_kms->connectors = g_new (drmModeConnector *, manager_kms->n_connectors);
for (i = 0; i < manager_kms->n_connectors; i++)
{
drmModeConnector *connector;
connector = drmModeGetConnector (manager_kms->fd, resources->connectors[i]);
manager_kms->connectors[i] = connector;
if (connector && connector->connection == DRM_MODE_CONNECTED)
{
/* Collect all modes for this connector */
for (j = 0; j < (unsigned)connector->count_modes; j++)
g_hash_table_add (modes, &connector->modes[j]);
}
}
encoders = g_new (drmModeEncoder *, resources->count_encoders);
for (i = 0; i < (unsigned)resources->count_encoders; i++)
encoders[i] = drmModeGetEncoder (manager_kms->fd, resources->encoders[i]);
manager->n_modes = g_hash_table_size (modes);
manager->modes = g_new0 (MetaMonitorMode, manager->n_modes);
g_hash_table_iter_init (&iter, modes);
i = 0;
while (g_hash_table_iter_next (&iter, NULL, (gpointer)&mode))
{
MetaMonitorMode *meta_mode;
meta_mode = &manager->modes[i];
meta_mode->mode_id = i;
meta_mode->name = g_strndup (mode->name, DRM_DISPLAY_MODE_LEN);
meta_mode->width = mode->hdisplay;
meta_mode->height = mode->vdisplay;
meta_mode->flags = mode->flags;
/* Calculate refresh rate in milliHz first for extra precision. */
meta_mode->refresh_rate = (mode->clock * 1000000LL) / mode->htotal;
meta_mode->refresh_rate += (mode->vtotal / 2);
meta_mode->refresh_rate /= mode->vtotal;
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
meta_mode->refresh_rate *= 2;
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
meta_mode->refresh_rate /= 2;
if (mode->vscan > 1)
meta_mode->refresh_rate /= mode->vscan;
meta_mode->refresh_rate /= 1000.0;
meta_mode->driver_private = g_slice_dup (drmModeModeInfo, mode);
meta_mode->driver_notify = (GDestroyNotify)meta_monitor_mode_destroy_notify;
i++;
}
g_hash_table_destroy (modes);
manager->n_crtcs = resources->count_crtcs;
manager->crtcs = g_new0 (MetaCRTC, manager->n_crtcs);
width = 0; height = 0;
for (i = 0; i < (unsigned)resources->count_crtcs; i++)
{
drmModeCrtc *crtc;
MetaCRTC *meta_crtc;
crtc = drmModeGetCrtc (manager_kms->fd, resources->crtcs[i]);
meta_crtc = &manager->crtcs[i];
meta_crtc->crtc_id = crtc->crtc_id;
meta_crtc->rect.x = crtc->x;
meta_crtc->rect.y = crtc->y;
meta_crtc->rect.width = crtc->width;
meta_crtc->rect.height = crtc->height;
meta_crtc->is_dirty = FALSE;
meta_crtc->transform = META_MONITOR_TRANSFORM_NORMAL;
/* FIXME: implement! */
meta_crtc->all_transforms = 1 << META_MONITOR_TRANSFORM_NORMAL;
if (crtc->mode_valid)
{
for (j = 0; j < manager->n_modes; j++)
{
if (drm_mode_equal (&crtc->mode, manager->modes[j].driver_private))
{
meta_crtc->current_mode = &manager->modes[j];
break;
}
}
width = MAX (width, meta_crtc->rect.x + meta_crtc->rect.width);
height = MAX (height, meta_crtc->rect.y + meta_crtc->rect.height);
}
meta_crtc->driver_private = g_new0 (MetaCRTCKms, 1);
meta_crtc->driver_notify = (GDestroyNotify) meta_crtc_destroy_notify;
find_crtc_properties (manager_kms, meta_crtc);
init_crtc_rotations (manager, meta_crtc, i);
drmModeFreeCrtc (crtc);
}
manager->screen_width = width;
manager->screen_height = height;
manager->outputs = g_new0 (MetaOutput, manager_kms->n_connectors);
n_actual_outputs = 0;
for (i = 0; i < manager_kms->n_connectors; i++)
{
MetaOutput *meta_output, *old_output;
MetaOutputKms *output_kms;
drmModeConnector *connector;
GArray *crtcs;
unsigned int crtc_mask;
GBytes *edid;
connector = manager_kms->connectors[i];
meta_output = &manager->outputs[n_actual_outputs];
if (connector && connector->connection == DRM_MODE_CONNECTED)
{
meta_output->driver_private = output_kms = g_slice_new0 (MetaOutputKms);
meta_output->driver_notify = (GDestroyNotify)meta_output_destroy_notify;
meta_output->winsys_id = connector->connector_id;
meta_output->name = make_output_name (connector);
meta_output->width_mm = connector->mmWidth;
meta_output->height_mm = connector->mmHeight;
switch (connector->subpixel)
{
case DRM_MODE_SUBPIXEL_NONE:
meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_NONE;
break;
case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_HORIZONTAL_RGB;
break;
case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_HORIZONTAL_BGR;
break;
case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_VERTICAL_RGB;
break;
case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_VERTICAL_BGR;
break;
case DRM_MODE_SUBPIXEL_UNKNOWN:
default:
meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
break;
}
meta_output->preferred_mode = NULL;
meta_output->n_modes = connector->count_modes;
meta_output->modes = g_new0 (MetaMonitorMode *, meta_output->n_modes);
for (j = 0; j < meta_output->n_modes; j++) {
meta_output->modes[j] = find_meta_mode (manager, &connector->modes[j]);
if (connector->modes[j].type & DRM_MODE_TYPE_PREFERRED)
meta_output->preferred_mode = meta_output->modes[j];
}
if (!meta_output->preferred_mode)
meta_output->preferred_mode = meta_output->modes[0];
output_kms->connector = connector;
output_kms->n_encoders = connector->count_encoders;
output_kms->encoders = g_new0 (drmModeEncoderPtr, output_kms->n_encoders);
crtc_mask = ~(unsigned int)0;
for (j = 0; j < output_kms->n_encoders; j++)
{
output_kms->encoders[j] = drmModeGetEncoder (manager_kms->fd, connector->encoders[j]);
if (!output_kms->encoders[j])
continue;
/* We only list CRTCs as supported if they are supported by all encoders
for this connectors.
This is what xf86-video-modesetting does (see drmmode_output_init())
*/
crtc_mask &= output_kms->encoders[j]->possible_crtcs;
if (output_kms->encoders[j]->encoder_id == connector->encoder_id)
output_kms->current_encoder = output_kms->encoders[j];
}
crtcs = g_array_new (FALSE, FALSE, sizeof (MetaCRTC*));
for (j = 0; j < manager->n_crtcs; j++)
{
if (crtc_mask & (1 << j))
{
MetaCRTC *crtc = &manager->crtcs[j];
g_array_append_val (crtcs, crtc);
}
}
meta_output->n_possible_crtcs = crtcs->len;
meta_output->possible_crtcs = (void*)g_array_free (crtcs, FALSE);
if (output_kms->current_encoder && output_kms->current_encoder->crtc_id != 0)
{
for (j = 0; j < manager->n_crtcs; j++)
{
if (manager->crtcs[j].crtc_id == output_kms->current_encoder->crtc_id)
{
meta_output->crtc = &manager->crtcs[j];
break;
}
}
}
else
meta_output->crtc = NULL;
old_output = find_output_by_id (old_outputs, n_old_outputs,
meta_output->winsys_id);
if (old_output)
{
meta_output->is_primary = old_output->is_primary;
meta_output->is_presentation = old_output->is_presentation;
}
else
{
meta_output->is_primary = FALSE;
meta_output->is_presentation = FALSE;
}
find_connector_properties (manager_kms, output_kms);
meta_output->suggested_x = output_kms->suggested_x;
meta_output->suggested_y = output_kms->suggested_y;
meta_output->hotplug_mode_update = output_kms->hotplug_mode_update;
edid = read_output_edid (manager_kms, meta_output);
meta_output_parse_edid (meta_output, edid);
g_bytes_unref (edid);
/* MetaConnectorType matches DRM's connector types */
meta_output->connector_type = (MetaConnectorType) connector->connector_type;
meta_output->scale = get_output_scale (manager, meta_output);
output_get_tile_info (manager_kms, meta_output);
/* FIXME: backlight is a very driver specific thing unfortunately,
every DDX does its own thing, and the dumb KMS API does not include it.
For example, xf86-video-intel has a list of paths to probe in /sys/class/backlight
(one for each major HW maker, and then some).
We can't do the same because we're not root.
It might be best to leave backlight out of the story and rely on the setuid
helper in gnome-settings-daemon.
*/
meta_output->backlight_min = 0;
meta_output->backlight_max = 0;
meta_output->backlight = -1;
n_actual_outputs++;
}
}
manager->n_outputs = n_actual_outputs;
manager->outputs = g_renew (MetaOutput, manager->outputs, manager->n_outputs);
/* Sort the outputs for easier handling in MetaMonitorConfig */
qsort (manager->outputs, manager->n_outputs, sizeof (MetaOutput), compare_outputs);
/* Now fix the clones.
Code mostly inspired by xf86-video-modesetting. */
/* XXX: intel hardware doesn't usually have clones, but I only have laptops with
intel cards, so this code was never tested! */
for (i = 0; i < manager->n_outputs; i++)
{
MetaOutput *meta_output;
MetaOutputKms *output_kms;
meta_output = &manager->outputs[i];
output_kms = meta_output->driver_private;
output_kms->enc_clone_mask = 0xff;
output_kms->encoder_mask = 0;
for (j = 0; j < output_kms->n_encoders; j++)
{
for (k = 0; k < (unsigned)resources->count_encoders; k++)
{
if (output_kms->encoders[j] && encoders[k] &&
output_kms->encoders[j]->encoder_id == encoders[k]->encoder_id)
{
output_kms->encoder_mask |= (1 << k);
break;
}
}
output_kms->enc_clone_mask &= output_kms->encoders[j]->possible_clones;
}
}
for (i = 0; i < manager->n_outputs; i++)
{
MetaOutput *meta_output;
MetaOutputKms *output_kms;
meta_output = &manager->outputs[i];
output_kms = meta_output->driver_private;
if (output_kms->enc_clone_mask == 0)
continue;
for (j = 0; j < manager->n_outputs; j++)
{
MetaOutput *meta_clone;
MetaOutputKms *clone_kms;
meta_clone = &manager->outputs[i];
clone_kms = meta_clone->driver_private;
if (meta_clone == meta_output)
continue;
if (clone_kms->encoder_mask == 0)
continue;
if (clone_kms->encoder_mask == output_kms->enc_clone_mask)
{
meta_output->n_possible_clones++;
meta_output->possible_clones = g_renew (MetaOutput *,
meta_output->possible_clones,
meta_output->n_possible_clones);
meta_output->possible_clones[meta_output->n_possible_clones - 1] = meta_clone;
}
}
}
for (i = 0; i < (unsigned)resources->count_encoders; i++)
drmModeFreeEncoder (encoders[i]);
g_free (encoders);
drmModeFreeResources (resources);
}
static GBytes *
meta_monitor_manager_kms_read_edid (MetaMonitorManager *manager,
MetaOutput *output)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
return read_output_edid (manager_kms, output);
}
static void
meta_monitor_manager_kms_set_power_save_mode (MetaMonitorManager *manager,
MetaPowerSave mode)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
uint64_t state;
unsigned i;
switch (mode) {
case META_POWER_SAVE_ON:
state = DRM_MODE_DPMS_ON;
break;
case META_POWER_SAVE_STANDBY:
state = DRM_MODE_DPMS_STANDBY;
break;
case META_POWER_SAVE_SUSPEND:
state = DRM_MODE_DPMS_SUSPEND;
break;
case META_POWER_SAVE_OFF:
state = DRM_MODE_DPMS_OFF;
break;
default:
return;
}
for (i = 0; i < manager->n_outputs; i++)
{
MetaOutput *meta_output;
MetaOutputKms *output_kms;
meta_output = &manager->outputs[i];
output_kms = meta_output->driver_private;
if (output_kms->dpms_prop_id != 0)
{
int ok = drmModeObjectSetProperty (manager_kms->fd, meta_output->winsys_id,
DRM_MODE_OBJECT_CONNECTOR,
output_kms->dpms_prop_id, state);
if (ok < 0)
meta_warning ("Failed to set power save mode for output %s: %s\n",
meta_output->name, strerror (errno));
}
}
}
static void
set_underscan (MetaMonitorManagerKms *manager_kms,
MetaOutput *output)
{
if (!output->crtc)
return;
MetaCRTC *crtc = output->crtc;
MetaCRTCKms *crtc_kms = crtc->driver_private;
if (!crtc_kms->underscan_prop_id)
return;
if (output->is_underscanning)
{
drmModeObjectSetProperty (manager_kms->fd, crtc->crtc_id,
DRM_MODE_OBJECT_CRTC,
crtc_kms->underscan_prop_id, (uint64_t) 1);
if (crtc_kms->underscan_hborder_prop_id)
{
uint64_t value = crtc->current_mode->width * 0.05;
drmModeObjectSetProperty (manager_kms->fd, crtc->crtc_id,
DRM_MODE_OBJECT_CRTC,
crtc_kms->underscan_hborder_prop_id, value);
}
if (crtc_kms->underscan_vborder_prop_id)
{
uint64_t value = crtc->current_mode->height * 0.05;
drmModeObjectSetProperty (manager_kms->fd, crtc->crtc_id,
DRM_MODE_OBJECT_CRTC,
crtc_kms->underscan_vborder_prop_id, value);
}
}
else
{
drmModeObjectSetProperty (manager_kms->fd, crtc->crtc_id,
DRM_MODE_OBJECT_CRTC,
crtc_kms->underscan_prop_id, (uint64_t) 0);
}
}
static void
meta_monitor_manager_kms_apply_configuration (MetaMonitorManager *manager,
MetaCRTCInfo **crtcs,
unsigned int n_crtcs,
MetaOutputInfo **outputs,
unsigned int n_outputs)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
MetaBackend *backend;
MetaRenderer *renderer;
unsigned i;
int screen_width, screen_height;
gboolean ok;
GError *error;
screen_width = 0; screen_height = 0;
for (i = 0; i < n_crtcs; i++)
{
MetaCRTCInfo *crtc_info = crtcs[i];
MetaCRTC *crtc = crtc_info->crtc;
MetaCRTCKms *crtc_kms = crtc->driver_private;
crtc->is_dirty = TRUE;
if (crtc_info->mode == NULL)
{
crtc->rect.x = 0;
crtc->rect.y = 0;
crtc->rect.width = 0;
crtc->rect.height = 0;
crtc->current_mode = NULL;
}
else
{
MetaMonitorMode *mode;
unsigned int j;
int width, height;
mode = crtc_info->mode;
for (j = 0; j < crtc_info->outputs->len; j++)
{
MetaOutput *output = g_ptr_array_index (crtc_info->outputs, j);
output->is_dirty = TRUE;
output->crtc = crtc;
}
if (meta_monitor_transform_is_rotated (crtc_info->transform))
{
width = mode->height;
height = mode->width;
}
else
{
width = mode->width;
height = mode->height;
}
screen_width = MAX (screen_width, crtc_info->x + width);
screen_height = MAX (screen_height, crtc_info->y + height);
crtc->rect.x = crtc_info->x;
crtc->rect.y = crtc_info->y;
crtc->rect.width = width;
crtc->rect.height = height;
crtc->current_mode = mode;
crtc->transform = crtc_info->transform;
}
if (crtc->all_transforms & (1 << crtc->transform))
drmModeObjectSetProperty (manager_kms->fd,
crtc_kms->primary_plane_id,
DRM_MODE_OBJECT_PLANE,
crtc_kms->rotation_prop_id,
crtc_kms->rotation_map[crtc->transform]);
}
/* Disable CRTCs not mentioned in the list (they have is_dirty == FALSE,
because they weren't seen in the first loop) */
for (i = 0; i < manager->n_crtcs; i++)
{
MetaCRTC *crtc = &manager->crtcs[i];
crtc->logical_monitor = NULL;
if (crtc->is_dirty)
{
crtc->is_dirty = FALSE;
continue;
}
crtc->rect.x = 0;
crtc->rect.y = 0;
crtc->rect.width = 0;
crtc->rect.height = 0;
crtc->current_mode = NULL;
}
backend = meta_get_backend ();
renderer = meta_backend_get_renderer (backend);
error = NULL;
ok = meta_renderer_native_set_layout (META_RENDERER_NATIVE (renderer),
screen_width, screen_height,
&error);
if (!ok)
{
meta_warning ("Applying display configuration failed: %s\n", error->message);
g_error_free (error);
return;
}
for (i = 0; i < n_outputs; i++)
{
MetaOutputInfo *output_info = outputs[i];
MetaOutput *output = output_info->output;
output->is_primary = output_info->is_primary;
output->is_presentation = output_info->is_presentation;
output->is_underscanning = output_info->is_underscanning;
set_underscan (manager_kms, output);
}
/* Disable outputs not mentioned in the list */
for (i = 0; i < manager->n_outputs; i++)
{
MetaOutput *output = &manager->outputs[i];
if (output->is_dirty)
{
output->is_dirty = FALSE;
continue;
}
output->crtc = NULL;
output->is_primary = FALSE;
}
manager->screen_width = screen_width;
manager->screen_height = screen_height;
meta_monitor_manager_rebuild_derived (manager);
}
static void
meta_monitor_manager_kms_get_crtc_gamma (MetaMonitorManager *manager,
MetaCRTC *crtc,
gsize *size,
unsigned short **red,
unsigned short **green,
unsigned short **blue)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
drmModeCrtc *kms_crtc;
kms_crtc = drmModeGetCrtc (manager_kms->fd, crtc->crtc_id);
*size = kms_crtc->gamma_size;
*red = g_new (unsigned short, *size);
*green = g_new (unsigned short, *size);
*blue = g_new (unsigned short, *size);
drmModeCrtcGetGamma (manager_kms->fd, crtc->crtc_id, *size, *red, *green, *blue);
drmModeFreeCrtc (kms_crtc);
}
static void
meta_monitor_manager_kms_set_crtc_gamma (MetaMonitorManager *manager,
MetaCRTC *crtc,
gsize size,
unsigned short *red,
unsigned short *green,
unsigned short *blue)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
drmModeCrtcSetGamma (manager_kms->fd, crtc->crtc_id, size, red, green, blue);
}
static void
on_uevent (GUdevClient *client,
const char *action,
GUdevDevice *device,
gpointer user_data)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (user_data);
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_kms);
if (!g_udev_device_get_property_as_boolean (device, "HOTPLUG"))
return;
meta_monitor_manager_read_current_config (manager);
meta_monitor_manager_on_hotplug (manager);
}
static gboolean
kms_event_check (GSource *source)
{
MetaKmsSource *kms_source = (MetaKmsSource *) source;
return g_source_query_unix_fd (source, kms_source->fd_tag) & G_IO_IN;
}
static gboolean
kms_event_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
MetaKmsSource *kms_source = (MetaKmsSource *) source;
meta_monitor_manager_kms_wait_for_flip (kms_source->manager_kms);
return G_SOURCE_CONTINUE;
}
static GSourceFuncs kms_event_funcs = {
NULL,
kms_event_check,
kms_event_dispatch
};
static void
meta_monitor_manager_kms_init (MetaMonitorManagerKms *manager_kms)
{
MetaBackend *backend = meta_get_backend ();
MetaRenderer *renderer = meta_backend_get_renderer (backend);
MetaRendererNative *renderer_native = META_RENDERER_NATIVE (renderer);
GSource *source;
manager_kms->fd = meta_renderer_native_get_kms_fd (renderer_native);
drmSetClientCap (manager_kms->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
const char *subsystems[2] = { "drm", NULL };
manager_kms->udev = g_udev_client_new (subsystems);
g_signal_connect (manager_kms->udev, "uevent",
G_CALLBACK (on_uevent), manager_kms);
source = g_source_new (&kms_event_funcs, sizeof (MetaKmsSource));
manager_kms->source = (MetaKmsSource *) source;
manager_kms->source->fd_tag = g_source_add_unix_fd (source,
manager_kms->fd,
G_IO_IN | G_IO_ERR);
manager_kms->source->manager_kms = manager_kms;
g_source_attach (source, NULL);
manager_kms->desktop_settings = g_settings_new ("org.gnome.desktop.interface");
}
static void
get_crtc_connectors (MetaMonitorManager *manager,
MetaCRTC *crtc,
uint32_t **connectors,
unsigned int *n_connectors)
{
GArray *connectors_array = NULL;
unsigned int i;
for (i = 0; i < manager->n_outputs; i++)
{
MetaOutput *output = &manager->outputs[i];
if (output->crtc == crtc)
{
if (!connectors_array)
connectors_array = g_array_new (FALSE, FALSE, sizeof (uint32_t));
g_array_append_val (connectors_array, output->winsys_id);
}
}
if (connectors_array)
{
*connectors = (uint32_t *) connectors_array->data;
*n_connectors = connectors_array->len;
}
else
{
*connectors = NULL;
*n_connectors = 0;
}
}
void
meta_monitor_manager_kms_apply_crtc_modes (MetaMonitorManagerKms *manager_kms,
uint32_t fb_id)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_kms);
unsigned int i;
for (i = 0; i < manager->n_crtcs; i++)
{
MetaCRTC *crtc = &manager->crtcs[i];
uint32_t *connectors;
unsigned int n_connectors;
drmModeModeInfo *mode;
get_crtc_connectors (manager, crtc, &connectors, &n_connectors);
if (connectors)
mode = crtc->current_mode->driver_private;
else
mode = NULL;
if (drmModeSetCrtc (manager_kms->fd,
crtc->crtc_id,
fb_id,
crtc->rect.x, crtc->rect.y,
connectors, n_connectors,
mode) != 0)
g_warning ("Failed to set CRTC mode %s: %m", crtc->current_mode->name);
g_free (connectors);
}
}
gboolean
meta_monitor_manager_kms_flip_all_crtcs (MetaMonitorManagerKms *manager_kms,
uint32_t fb_id,
MetaKmsFlipCallback flip_callback,
void *user_data)
{
MetaMonitorManager *manager = META_MONITOR_MANAGER (manager_kms);
MetaKmsFlipClosure *flip_closure = NULL;
unsigned int i;
gboolean fb_in_use = FALSE;
if (manager->power_save_mode != META_POWER_SAVE_ON)
return FALSE;
for (i = 0; i < manager->n_crtcs; i++)
{
MetaCRTC *crtc = &manager->crtcs[i];
uint32_t *connectors;
unsigned int n_connectors;
int ret;
get_crtc_connectors (manager, crtc, &connectors, &n_connectors);
if (n_connectors == 0)
continue;
fb_in_use = TRUE;
if (manager_kms->page_flips_not_supported)
continue;
if (!flip_closure)
{
flip_closure = g_new0 (MetaKmsFlipClosure, 1);
*flip_closure = (MetaKmsFlipClosure) {
.pending = 0,
.callback = flip_callback,
.user_data = user_data
};
}
ret = drmModePageFlip (manager_kms->fd,
crtc->crtc_id,
fb_id,
DRM_MODE_PAGE_FLIP_EVENT,
flip_closure);
if (ret != 0 && ret != -EACCES)
{
g_warning ("Failed to flip: %s", strerror (-ret));
manager_kms->page_flips_not_supported = TRUE;
break;
}
if (ret == 0)
flip_closure->pending++;
}
if (manager_kms->page_flips_not_supported && fb_in_use)
{
/* If the driver doesn't support page flipping, just set the mode directly
* with the new framebuffer.
*/
meta_monitor_manager_kms_apply_crtc_modes (manager_kms, fb_id);
flip_callback (user_data);
g_free (flip_closure);
}
return fb_in_use;
}
static void
page_flip_handler (int fd,
unsigned int frame,
unsigned int sec,
unsigned int usec,
void *data)
{
MetaKmsFlipClosure *flip_closure = data;
flip_closure->pending--;
if (flip_closure->pending == 0)
flip_closure->callback (flip_closure->user_data);
}
void
meta_monitor_manager_kms_wait_for_flip (MetaMonitorManagerKms *manager_kms)
{
drmEventContext evctx;
if (manager_kms->page_flips_not_supported)
return;
memset (&evctx, 0, sizeof evctx);
evctx.version = DRM_EVENT_CONTEXT_VERSION;
evctx.page_flip_handler = page_flip_handler;
drmHandleEvent (manager_kms->fd, &evctx);
}
static void
meta_monitor_manager_kms_dispose (GObject *object)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (object);
g_clear_object (&manager_kms->udev);
g_clear_object (&manager_kms->desktop_settings);
G_OBJECT_CLASS (meta_monitor_manager_kms_parent_class)->dispose (object);
}
static void
meta_monitor_manager_kms_finalize (GObject *object)
{
MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (object);
free_resources (manager_kms);
g_source_destroy ((GSource *) manager_kms->source);
G_OBJECT_CLASS (meta_monitor_manager_kms_parent_class)->finalize (object);
}
static void
meta_monitor_manager_kms_class_init (MetaMonitorManagerKmsClass *klass)
{
MetaMonitorManagerClass *manager_class = META_MONITOR_MANAGER_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = meta_monitor_manager_kms_dispose;
object_class->finalize = meta_monitor_manager_kms_finalize;
manager_class->read_current = meta_monitor_manager_kms_read_current;
manager_class->read_edid = meta_monitor_manager_kms_read_edid;
manager_class->apply_configuration = meta_monitor_manager_kms_apply_configuration;
manager_class->set_power_save_mode = meta_monitor_manager_kms_set_power_save_mode;
manager_class->get_crtc_gamma = meta_monitor_manager_kms_get_crtc_gamma;
manager_class->set_crtc_gamma = meta_monitor_manager_kms_set_crtc_gamma;
}
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