DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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/*
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* Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
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* Copyright (c) 2007-2008 Intel Corporation
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* Jesse Barnes <jesse.barnes@intel.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef __INTEL_DRV_H__
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#define __INTEL_DRV_H__
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#include <linux/i2c.h>
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2009-09-10 16:28:06 -06:00
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#include "i915_drv.h"
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DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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#include "drm_crtc.h"
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#include "drm_crtc_helper.h"
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2010-08-25 15:45:57 -06:00
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#include "drm_fb_helper.h"
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2010-08-07 04:01:35 -06:00
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2010-08-23 10:43:35 -06:00
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#define _wait_for(COND, MS, W) ({ \
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2010-08-07 04:01:35 -06:00
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unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
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int ret__ = 0; \
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while (! (COND)) { \
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if (time_after(jiffies, timeout__)) { \
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ret__ = -ETIMEDOUT; \
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break; \
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} \
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2010-08-07 05:16:25 -06:00
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if (W && !in_dbg_master()) msleep(W); \
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2010-08-07 04:01:35 -06:00
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} \
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ret__; \
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})
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2010-08-23 10:43:35 -06:00
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#define wait_for(COND, MS) _wait_for(COND, MS, 1)
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#define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
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2010-09-12 06:34:08 -06:00
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#define MSLEEP(x) do { \
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if (in_dbg_master()) \
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mdelay(x); \
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else \
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msleep(x); \
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} while(0)
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2010-09-07 13:54:59 -06:00
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#define KHz(x) (1000*x)
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#define MHz(x) KHz(1000*x)
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DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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/*
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* Display related stuff
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*/
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/* store information about an Ixxx DVO */
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/* The i830->i865 use multiple DVOs with multiple i2cs */
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/* the i915, i945 have a single sDVO i2c bus - which is different */
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#define MAX_OUTPUTS 6
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/* maximum connectors per crtcs in the mode set */
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#define INTELFB_CONN_LIMIT 4
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#define INTEL_I2C_BUS_DVO 1
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#define INTEL_I2C_BUS_SDVO 2
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/* these are outputs from the chip - integrated only
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external chips are via DVO or SDVO output */
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#define INTEL_OUTPUT_UNUSED 0
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#define INTEL_OUTPUT_ANALOG 1
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#define INTEL_OUTPUT_DVO 2
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#define INTEL_OUTPUT_SDVO 3
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#define INTEL_OUTPUT_LVDS 4
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#define INTEL_OUTPUT_TVOUT 5
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2009-01-02 14:33:00 -07:00
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#define INTEL_OUTPUT_HDMI 6
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2009-04-07 17:16:42 -06:00
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#define INTEL_OUTPUT_DISPLAYPORT 7
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2009-07-23 11:00:32 -06:00
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#define INTEL_OUTPUT_EDP 8
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DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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2009-08-23 23:50:24 -06:00
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/* Intel Pipe Clone Bit */
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#define INTEL_HDMIB_CLONE_BIT 1
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#define INTEL_HDMIC_CLONE_BIT 2
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#define INTEL_HDMID_CLONE_BIT 3
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#define INTEL_HDMIE_CLONE_BIT 4
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#define INTEL_HDMIF_CLONE_BIT 5
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#define INTEL_SDVO_NON_TV_CLONE_BIT 6
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#define INTEL_SDVO_TV_CLONE_BIT 7
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#define INTEL_SDVO_LVDS_CLONE_BIT 8
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#define INTEL_ANALOG_CLONE_BIT 9
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#define INTEL_TV_CLONE_BIT 10
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#define INTEL_DP_B_CLONE_BIT 11
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#define INTEL_DP_C_CLONE_BIT 12
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#define INTEL_DP_D_CLONE_BIT 13
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#define INTEL_LVDS_CLONE_BIT 14
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#define INTEL_DVO_TMDS_CLONE_BIT 15
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#define INTEL_DVO_LVDS_CLONE_BIT 16
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2009-09-08 00:52:25 -06:00
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#define INTEL_EDP_CLONE_BIT 17
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2009-08-23 23:50:24 -06:00
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DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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#define INTEL_DVO_CHIP_NONE 0
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#define INTEL_DVO_CHIP_LVDS 1
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#define INTEL_DVO_CHIP_TMDS 2
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#define INTEL_DVO_CHIP_TVOUT 4
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2010-08-25 03:05:17 -06:00
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/* drm_display_mode->private_flags */
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#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
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#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
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static inline void
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intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
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int multiplier)
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{
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mode->clock *= multiplier;
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mode->private_flags |= multiplier;
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}
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static inline int
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intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
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{
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return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
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}
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DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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struct intel_framebuffer {
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struct drm_framebuffer base;
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2010-11-08 12:18:58 -07:00
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struct drm_i915_gem_object *obj;
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DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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};
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2010-08-25 15:45:57 -06:00
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struct intel_fbdev {
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struct drm_fb_helper helper;
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struct intel_framebuffer ifb;
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struct list_head fbdev_list;
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struct drm_display_mode *our_mode;
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};
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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2010-03-25 12:11:14 -06:00
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struct intel_encoder {
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2010-09-09 08:14:28 -06:00
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struct drm_encoder base;
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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int type;
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bool load_detect_temp;
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2009-02-02 16:11:52 -07:00
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bool needs_tv_clock;
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2010-03-25 12:11:14 -06:00
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void (*hot_plug)(struct intel_encoder *);
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2009-08-23 23:50:24 -06:00
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int crtc_mask;
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int clone_mask;
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
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};
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2010-03-30 00:39:28 -06:00
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struct intel_connector {
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struct drm_connector base;
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2010-09-09 09:20:55 -06:00
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struct intel_encoder *encoder;
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2010-03-30 00:39:28 -06:00
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};
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|
|
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
struct intel_crtc {
|
|
|
|
|
struct drm_crtc base;
|
2009-09-10 16:28:06 -06:00
|
|
|
enum pipe pipe;
|
|
|
|
|
enum plane plane;
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
u8 lut_r[256], lut_g[256], lut_b[256];
|
|
|
|
|
int dpms_mode;
|
2010-09-13 07:19:16 -06:00
|
|
|
bool active; /* is the crtc on? independent of the dpms mode */
|
2009-08-17 14:31:43 -06:00
|
|
|
bool busy; /* is scanout buffer being updated frequently? */
|
|
|
|
|
struct timer_list idle_timer;
|
|
|
|
|
bool lowfreq_avail;
|
2009-09-15 14:57:34 -06:00
|
|
|
struct intel_overlay *overlay;
|
2009-11-18 09:25:18 -07:00
|
|
|
struct intel_unpin_work *unpin_work;
|
2010-04-12 09:38:44 -06:00
|
|
|
int fdi_lanes;
|
2010-07-09 01:45:04 -06:00
|
|
|
|
2010-11-08 12:18:58 -07:00
|
|
|
struct drm_i915_gem_object *cursor_bo;
|
2010-07-09 01:45:04 -06:00
|
|
|
uint32_t cursor_addr;
|
|
|
|
|
int16_t cursor_x, cursor_y;
|
|
|
|
|
int16_t cursor_width, cursor_height;
|
2010-09-13 06:54:26 -06:00
|
|
|
bool cursor_visible;
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
|
2010-03-30 00:39:28 -06:00
|
|
|
#define to_intel_connector(x) container_of(x, struct intel_connector, base)
|
2010-09-09 08:14:28 -06:00
|
|
|
#define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
#define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
|
|
|
|
|
|
2010-09-24 13:44:32 -06:00
|
|
|
#define DIP_TYPE_AVI 0x82
|
|
|
|
|
#define DIP_VERSION_AVI 0x2
|
|
|
|
|
#define DIP_LEN_AVI 13
|
|
|
|
|
|
|
|
|
|
struct dip_infoframe {
|
|
|
|
|
uint8_t type; /* HB0 */
|
|
|
|
|
uint8_t ver; /* HB1 */
|
|
|
|
|
uint8_t len; /* HB2 - body len, not including checksum */
|
|
|
|
|
uint8_t ecc; /* Header ECC */
|
|
|
|
|
uint8_t checksum; /* PB0 */
|
|
|
|
|
union {
|
|
|
|
|
struct {
|
|
|
|
|
/* PB1 - Y 6:5, A 4:4, B 3:2, S 1:0 */
|
|
|
|
|
uint8_t Y_A_B_S;
|
|
|
|
|
/* PB2 - C 7:6, M 5:4, R 3:0 */
|
|
|
|
|
uint8_t C_M_R;
|
|
|
|
|
/* PB3 - ITC 7:7, EC 6:4, Q 3:2, SC 1:0 */
|
|
|
|
|
uint8_t ITC_EC_Q_SC;
|
|
|
|
|
/* PB4 - VIC 6:0 */
|
|
|
|
|
uint8_t VIC;
|
|
|
|
|
/* PB5 - PR 3:0 */
|
|
|
|
|
uint8_t PR;
|
|
|
|
|
/* PB6 to PB13 */
|
|
|
|
|
uint16_t top_bar_end;
|
|
|
|
|
uint16_t bottom_bar_start;
|
|
|
|
|
uint16_t left_bar_end;
|
|
|
|
|
uint16_t right_bar_start;
|
|
|
|
|
} avi;
|
|
|
|
|
uint8_t payload[27];
|
|
|
|
|
} __attribute__ ((packed)) body;
|
|
|
|
|
} __attribute__((packed));
|
|
|
|
|
|
2010-09-09 08:44:14 -06:00
|
|
|
static inline struct drm_crtc *
|
|
|
|
|
intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
|
|
|
|
|
{
|
|
|
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
|
|
|
return dev_priv->pipe_to_crtc_mapping[pipe];
|
|
|
|
|
}
|
|
|
|
|
|
2010-09-01 10:47:52 -06:00
|
|
|
struct intel_unpin_work {
|
|
|
|
|
struct work_struct work;
|
|
|
|
|
struct drm_device *dev;
|
2010-11-08 12:18:58 -07:00
|
|
|
struct drm_i915_gem_object *old_fb_obj;
|
|
|
|
|
struct drm_i915_gem_object *pending_flip_obj;
|
2010-09-01 10:47:52 -06:00
|
|
|
struct drm_pending_vblank_event *event;
|
|
|
|
|
int pending;
|
|
|
|
|
bool enable_stall_check;
|
|
|
|
|
};
|
|
|
|
|
|
2010-03-30 00:39:31 -06:00
|
|
|
int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
|
2010-07-20 16:44:45 -06:00
|
|
|
extern bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus);
|
2009-12-01 12:56:30 -07:00
|
|
|
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
extern void intel_crt_init(struct drm_device *dev);
|
2009-01-02 14:33:00 -07:00
|
|
|
extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
|
2010-09-24 13:44:32 -06:00
|
|
|
void intel_dip_infoframe_csum(struct dip_infoframe *avi_if);
|
2009-01-02 14:33:00 -07:00
|
|
|
extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
extern void intel_dvo_init(struct drm_device *dev);
|
|
|
|
|
extern void intel_tv_init(struct drm_device *dev);
|
2010-11-08 12:18:58 -07:00
|
|
|
extern void intel_mark_busy(struct drm_device *dev,
|
|
|
|
|
struct drm_i915_gem_object *obj);
|
2010-11-29 11:00:23 -07:00
|
|
|
extern bool intel_lvds_init(struct drm_device *dev);
|
2009-04-07 17:16:42 -06:00
|
|
|
extern void intel_dp_init(struct drm_device *dev, int dp_reg);
|
|
|
|
|
void
|
|
|
|
|
intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
|
|
|
|
|
struct drm_display_mode *adjusted_mode);
|
2010-07-16 12:46:29 -06:00
|
|
|
extern bool intel_dpd_is_edp(struct drm_device *dev);
|
2010-03-25 12:11:14 -06:00
|
|
|
extern void intel_edp_link_config (struct intel_encoder *, int *, int *);
|
2010-10-07 17:01:09 -06:00
|
|
|
extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
|
2009-07-23 11:00:32 -06:00
|
|
|
|
2010-08-22 06:18:16 -06:00
|
|
|
/* intel_panel.c */
|
2010-08-07 04:01:28 -06:00
|
|
|
extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
|
|
|
|
|
struct drm_display_mode *adjusted_mode);
|
|
|
|
|
extern void intel_pch_panel_fitting(struct drm_device *dev,
|
|
|
|
|
int fitting_mode,
|
|
|
|
|
struct drm_display_mode *mode,
|
|
|
|
|
struct drm_display_mode *adjusted_mode);
|
2010-08-22 06:18:16 -06:00
|
|
|
extern u32 intel_panel_get_max_backlight(struct drm_device *dev);
|
|
|
|
|
extern u32 intel_panel_get_backlight(struct drm_device *dev);
|
|
|
|
|
extern void intel_panel_set_backlight(struct drm_device *dev, u32 level);
|
2010-08-07 04:01:28 -06:00
|
|
|
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
extern void intel_crtc_load_lut(struct drm_crtc *crtc);
|
|
|
|
|
extern void intel_encoder_prepare (struct drm_encoder *encoder);
|
|
|
|
|
extern void intel_encoder_commit (struct drm_encoder *encoder);
|
2010-08-04 06:50:23 -06:00
|
|
|
extern void intel_encoder_destroy(struct drm_encoder *encoder);
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
|
2010-09-09 09:20:55 -06:00
|
|
|
static inline struct intel_encoder *intel_attached_encoder(struct drm_connector *connector)
|
|
|
|
|
{
|
|
|
|
|
return to_intel_connector(connector)->encoder;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
extern void intel_connector_attach_encoder(struct intel_connector *connector,
|
|
|
|
|
struct intel_encoder *encoder);
|
|
|
|
|
extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
|
|
|
|
|
extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
|
|
|
|
|
struct drm_crtc *crtc);
|
2009-04-29 15:43:54 -06:00
|
|
|
int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
|
|
|
|
|
struct drm_file *file_priv);
|
2010-08-18 14:20:54 -06:00
|
|
|
extern void intel_wait_for_vblank(struct drm_device *dev, int pipe);
|
2010-10-03 03:56:11 -06:00
|
|
|
extern void intel_wait_for_pipe_off(struct drm_device *dev, int pipe);
|
2010-03-25 12:11:14 -06:00
|
|
|
extern struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
|
2010-03-30 00:39:30 -06:00
|
|
|
struct drm_connector *connector,
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
struct drm_display_mode *mode,
|
|
|
|
|
int *dpms_mode);
|
2010-03-25 12:11:14 -06:00
|
|
|
extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
|
2010-03-30 00:39:30 -06:00
|
|
|
struct drm_connector *connector,
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
int dpms_mode);
|
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|
|
|
|
|
|
|
|
extern struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB);
|
|
|
|
|
extern int intel_sdvo_supports_hotplug(struct drm_connector *connector);
|
|
|
|
|
extern void intel_sdvo_set_hotplug(struct drm_connector *connector, int enable);
|
|
|
|
|
extern void intelfb_restore(void);
|
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|
|
|
extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
|
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|
|
|
u16 blue, int regno);
|
2009-10-05 21:54:01 -06:00
|
|
|
extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
|
|
|
|
|
u16 *blue, int regno);
|
2010-12-05 10:27:06 -07:00
|
|
|
extern void intel_enable_clock_gating(struct drm_device *dev);
|
|
|
|
|
extern void intel_disable_clock_gating(struct drm_device *dev);
|
2010-01-29 12:27:07 -07:00
|
|
|
extern void ironlake_enable_drps(struct drm_device *dev);
|
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|
|
|
extern void ironlake_disable_drps(struct drm_device *dev);
|
2010-11-03 14:27:57 -06:00
|
|
|
extern void intel_init_emon(struct drm_device *dev);
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
|
2010-07-23 16:32:05 -06:00
|
|
|
extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
|
2010-11-08 12:18:58 -07:00
|
|
|
struct drm_i915_gem_object *obj,
|
2010-11-12 06:42:53 -07:00
|
|
|
struct intel_ring_buffer *pipelined);
|
2010-07-23 16:32:05 -06:00
|
|
|
|
2010-03-29 23:34:13 -06:00
|
|
|
extern int intel_framebuffer_init(struct drm_device *dev,
|
|
|
|
|
struct intel_framebuffer *ifb,
|
|
|
|
|
struct drm_mode_fb_cmd *mode_cmd,
|
2010-11-08 12:18:58 -07:00
|
|
|
struct drm_i915_gem_object *obj);
|
2010-03-29 23:34:13 -06:00
|
|
|
extern int intel_fbdev_init(struct drm_device *dev);
|
|
|
|
|
extern void intel_fbdev_fini(struct drm_device *dev);
|
2009-09-20 22:33:58 -06:00
|
|
|
|
2009-11-18 09:25:18 -07:00
|
|
|
extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
|
|
|
|
|
extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
|
2010-03-26 11:35:20 -06:00
|
|
|
extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
|
2009-11-18 09:25:18 -07:00
|
|
|
|
2009-09-15 14:57:34 -06:00
|
|
|
extern void intel_setup_overlay(struct drm_device *dev);
|
|
|
|
|
extern void intel_cleanup_overlay(struct drm_device *dev);
|
2010-08-12 06:50:28 -06:00
|
|
|
extern int intel_overlay_switch_off(struct intel_overlay *overlay,
|
|
|
|
|
bool interruptible);
|
2009-09-15 14:57:34 -06:00
|
|
|
extern int intel_overlay_put_image(struct drm_device *dev, void *data,
|
|
|
|
|
struct drm_file *file_priv);
|
|
|
|
|
extern int intel_overlay_attrs(struct drm_device *dev, void *data,
|
|
|
|
|
struct drm_file *file_priv);
|
2010-03-29 23:34:18 -06:00
|
|
|
|
2010-05-07 00:42:51 -06:00
|
|
|
extern void intel_fb_output_poll_changed(struct drm_device *dev);
|
DRM: i915: add mode setting support
This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported. HDMI, DisplayPort and additional SDVO output support will
follow.
Support for the mode setting code is controlled by the new 'modeset'
module option. A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.
Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing. So use caution when
enabling this code; be sure your user level code supports the new
interfaces.
A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.
Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-11-07 15:24:08 -07:00
|
|
|
#endif /* __INTEL_DRV_H__ */
|
