mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-09 23:06:38 +07:00
40ee6fbef7
At the time userspace does setcrtc, we've already promised the mode would work. The promise is based on the theoretical capabilities of the link, but it's possible we can't reach this in practice. The DP spec describes how the link should be reduced, but we can't reduce the link below the requirements of the mode. Black screen follows. One idea would be to have setcrtc return a failure. However, it already should not fail as the atomic checks have passed. It would also conflict with the idea of making setcrtc asynchronous in the future, returning before the actual mode setting and link training. Another idea is to train the link "upfront" at hotplug time, before pruning the mode list, so that we can do the pruning based on practical not theoretical capabilities. However, the changes for link training are pretty drastic, all for the sake of error handling and DP compliance, when the most common happy day scenario is the current approach of link training at mode setting time, using the optimal parameters for the mode. It is also not certain all hardware could do this without the pipe on; not even all our hardware can do this. Some of this can be solved, but not trivially. Both of the above ideas also fail to address link degradation *during* operation. The solution is to add a new "link-status" connector property in order to address link training failure in a way that: a) changes the current happy day scenario as little as possible, to avoid regressions, b) can be implemented the same way by all drm drivers, c) is still opt-in for the drivers and userspace, and opting out doesn't regress the user experience, d) doesn't prevent drivers from implementing better or alternate approaches, possibly without userspace involvement. And, of course, handles all the issues presented. In the usual happy day scenario, this is always "good". If something fails during or after a mode set, the kernel driver can set the link status to "bad" and issue a hotplug uevent for userspace to have it re-check the valid modes through GET_CONNECTOR IOCTL, and try modeset again. If the theoretical capabilities of the link can't be reached, the mode list is trimmed based on that. v7 by Jani: * Rebase, simplify set property while at it, checkpatch fix v6: * Fix a typo in kernel doc (Sean Paul) v5: * Clarify doc for silent rejection of atomic properties by driver (Daniel Vetter) v4: * Add comments in kernel-doc format (Daniel Vetter) * Update the kernel-doc for link-status (Sean Paul) v3: * Fixed a build error (Jani Saarinen) v2: * Removed connector->link_status (Daniel Vetter) * Set connector->state->link_status in drm_mode_connector_set_link_status_property (Daniel Vetter) * Set the connector_changed flag to true if connector->state->link_status changed. * Reset link_status to GOOD in update_output_state (Daniel Vetter) * Never allow userspace to set link status from Good To Bad (Daniel Vetter) Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Tony Cheng <tony.cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Eric Anholt <eric@anholt.net> (for the -modesetting patch) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/0182487051aa9f1594820e35a4853de2f8747b4e.1481883920.git.jani.nikula@intel.com
693 lines
19 KiB
C
693 lines
19 KiB
C
/*
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* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
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* Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com>
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* Copyright (c) 2008 Red Hat Inc.
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* Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
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* Copyright (c) 2007-2008 Intel Corporation
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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 shall be included in
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* all copies or substantial portions of the 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 THE
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* 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 _DRM_MODE_H
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#define _DRM_MODE_H
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#include "drm.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#define DRM_DISPLAY_INFO_LEN 32
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#define DRM_CONNECTOR_NAME_LEN 32
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#define DRM_DISPLAY_MODE_LEN 32
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#define DRM_PROP_NAME_LEN 32
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#define DRM_MODE_TYPE_BUILTIN (1<<0)
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#define DRM_MODE_TYPE_CLOCK_C ((1<<1) | DRM_MODE_TYPE_BUILTIN)
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#define DRM_MODE_TYPE_CRTC_C ((1<<2) | DRM_MODE_TYPE_BUILTIN)
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#define DRM_MODE_TYPE_PREFERRED (1<<3)
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#define DRM_MODE_TYPE_DEFAULT (1<<4)
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#define DRM_MODE_TYPE_USERDEF (1<<5)
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#define DRM_MODE_TYPE_DRIVER (1<<6)
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/* Video mode flags */
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/* bit compatible with the xrandr RR_ definitions (bits 0-13)
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*
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* ABI warning: Existing userspace really expects
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* the mode flags to match the xrandr definitions. Any
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* changes that don't match the xrandr definitions will
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* likely need a new client cap or some other mechanism
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* to avoid breaking existing userspace. This includes
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* allocating new flags in the previously unused bits!
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*/
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#define DRM_MODE_FLAG_PHSYNC (1<<0)
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#define DRM_MODE_FLAG_NHSYNC (1<<1)
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#define DRM_MODE_FLAG_PVSYNC (1<<2)
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#define DRM_MODE_FLAG_NVSYNC (1<<3)
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#define DRM_MODE_FLAG_INTERLACE (1<<4)
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#define DRM_MODE_FLAG_DBLSCAN (1<<5)
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#define DRM_MODE_FLAG_CSYNC (1<<6)
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#define DRM_MODE_FLAG_PCSYNC (1<<7)
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#define DRM_MODE_FLAG_NCSYNC (1<<8)
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#define DRM_MODE_FLAG_HSKEW (1<<9) /* hskew provided */
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#define DRM_MODE_FLAG_BCAST (1<<10)
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#define DRM_MODE_FLAG_PIXMUX (1<<11)
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#define DRM_MODE_FLAG_DBLCLK (1<<12)
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#define DRM_MODE_FLAG_CLKDIV2 (1<<13)
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/*
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* When adding a new stereo mode don't forget to adjust DRM_MODE_FLAGS_3D_MAX
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* (define not exposed to user space).
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*/
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#define DRM_MODE_FLAG_3D_MASK (0x1f<<14)
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#define DRM_MODE_FLAG_3D_NONE (0<<14)
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#define DRM_MODE_FLAG_3D_FRAME_PACKING (1<<14)
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#define DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE (2<<14)
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#define DRM_MODE_FLAG_3D_LINE_ALTERNATIVE (3<<14)
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#define DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL (4<<14)
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#define DRM_MODE_FLAG_3D_L_DEPTH (5<<14)
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#define DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH (6<<14)
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#define DRM_MODE_FLAG_3D_TOP_AND_BOTTOM (7<<14)
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#define DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF (8<<14)
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/* Picture aspect ratio options */
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#define DRM_MODE_PICTURE_ASPECT_NONE 0
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#define DRM_MODE_PICTURE_ASPECT_4_3 1
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#define DRM_MODE_PICTURE_ASPECT_16_9 2
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/* Aspect ratio flag bitmask (4 bits 22:19) */
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#define DRM_MODE_FLAG_PIC_AR_MASK (0x0F<<19)
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#define DRM_MODE_FLAG_PIC_AR_NONE \
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(DRM_MODE_PICTURE_ASPECT_NONE<<19)
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#define DRM_MODE_FLAG_PIC_AR_4_3 \
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(DRM_MODE_PICTURE_ASPECT_4_3<<19)
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#define DRM_MODE_FLAG_PIC_AR_16_9 \
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(DRM_MODE_PICTURE_ASPECT_16_9<<19)
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/* DPMS flags */
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/* bit compatible with the xorg definitions. */
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#define DRM_MODE_DPMS_ON 0
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#define DRM_MODE_DPMS_STANDBY 1
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#define DRM_MODE_DPMS_SUSPEND 2
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#define DRM_MODE_DPMS_OFF 3
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/* Scaling mode options */
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#define DRM_MODE_SCALE_NONE 0 /* Unmodified timing (display or
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software can still scale) */
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#define DRM_MODE_SCALE_FULLSCREEN 1 /* Full screen, ignore aspect */
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#define DRM_MODE_SCALE_CENTER 2 /* Centered, no scaling */
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#define DRM_MODE_SCALE_ASPECT 3 /* Full screen, preserve aspect */
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/* Dithering mode options */
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#define DRM_MODE_DITHERING_OFF 0
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#define DRM_MODE_DITHERING_ON 1
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#define DRM_MODE_DITHERING_AUTO 2
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/* Dirty info options */
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#define DRM_MODE_DIRTY_OFF 0
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#define DRM_MODE_DIRTY_ON 1
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#define DRM_MODE_DIRTY_ANNOTATE 2
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/* Link Status options */
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#define DRM_MODE_LINK_STATUS_GOOD 0
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#define DRM_MODE_LINK_STATUS_BAD 1
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struct drm_mode_modeinfo {
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__u32 clock;
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__u16 hdisplay;
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__u16 hsync_start;
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__u16 hsync_end;
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__u16 htotal;
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__u16 hskew;
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__u16 vdisplay;
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__u16 vsync_start;
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__u16 vsync_end;
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__u16 vtotal;
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__u16 vscan;
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__u32 vrefresh;
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__u32 flags;
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__u32 type;
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char name[DRM_DISPLAY_MODE_LEN];
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};
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struct drm_mode_card_res {
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__u64 fb_id_ptr;
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__u64 crtc_id_ptr;
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__u64 connector_id_ptr;
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__u64 encoder_id_ptr;
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__u32 count_fbs;
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__u32 count_crtcs;
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__u32 count_connectors;
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__u32 count_encoders;
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__u32 min_width;
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__u32 max_width;
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__u32 min_height;
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__u32 max_height;
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};
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struct drm_mode_crtc {
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__u64 set_connectors_ptr;
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__u32 count_connectors;
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__u32 crtc_id; /**< Id */
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__u32 fb_id; /**< Id of framebuffer */
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__u32 x; /**< x Position on the framebuffer */
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__u32 y; /**< y Position on the framebuffer */
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__u32 gamma_size;
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__u32 mode_valid;
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struct drm_mode_modeinfo mode;
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};
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#define DRM_MODE_PRESENT_TOP_FIELD (1<<0)
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#define DRM_MODE_PRESENT_BOTTOM_FIELD (1<<1)
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/* Planes blend with or override other bits on the CRTC */
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struct drm_mode_set_plane {
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__u32 plane_id;
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__u32 crtc_id;
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__u32 fb_id; /* fb object contains surface format type */
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__u32 flags; /* see above flags */
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/* Signed dest location allows it to be partially off screen */
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__s32 crtc_x;
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__s32 crtc_y;
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__u32 crtc_w;
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__u32 crtc_h;
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/* Source values are 16.16 fixed point */
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__u32 src_x;
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__u32 src_y;
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__u32 src_h;
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__u32 src_w;
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};
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struct drm_mode_get_plane {
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__u32 plane_id;
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__u32 crtc_id;
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__u32 fb_id;
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__u32 possible_crtcs;
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__u32 gamma_size;
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__u32 count_format_types;
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__u64 format_type_ptr;
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};
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struct drm_mode_get_plane_res {
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__u64 plane_id_ptr;
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__u32 count_planes;
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};
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#define DRM_MODE_ENCODER_NONE 0
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#define DRM_MODE_ENCODER_DAC 1
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#define DRM_MODE_ENCODER_TMDS 2
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#define DRM_MODE_ENCODER_LVDS 3
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#define DRM_MODE_ENCODER_TVDAC 4
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#define DRM_MODE_ENCODER_VIRTUAL 5
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#define DRM_MODE_ENCODER_DSI 6
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#define DRM_MODE_ENCODER_DPMST 7
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#define DRM_MODE_ENCODER_DPI 8
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struct drm_mode_get_encoder {
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__u32 encoder_id;
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__u32 encoder_type;
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__u32 crtc_id; /**< Id of crtc */
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__u32 possible_crtcs;
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__u32 possible_clones;
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};
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/* This is for connectors with multiple signal types. */
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/* Try to match DRM_MODE_CONNECTOR_X as closely as possible. */
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enum drm_mode_subconnector {
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DRM_MODE_SUBCONNECTOR_Automatic = 0,
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DRM_MODE_SUBCONNECTOR_Unknown = 0,
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DRM_MODE_SUBCONNECTOR_DVID = 3,
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DRM_MODE_SUBCONNECTOR_DVIA = 4,
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DRM_MODE_SUBCONNECTOR_Composite = 5,
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DRM_MODE_SUBCONNECTOR_SVIDEO = 6,
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DRM_MODE_SUBCONNECTOR_Component = 8,
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DRM_MODE_SUBCONNECTOR_SCART = 9,
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};
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#define DRM_MODE_CONNECTOR_Unknown 0
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#define DRM_MODE_CONNECTOR_VGA 1
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#define DRM_MODE_CONNECTOR_DVII 2
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#define DRM_MODE_CONNECTOR_DVID 3
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#define DRM_MODE_CONNECTOR_DVIA 4
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#define DRM_MODE_CONNECTOR_Composite 5
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#define DRM_MODE_CONNECTOR_SVIDEO 6
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#define DRM_MODE_CONNECTOR_LVDS 7
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#define DRM_MODE_CONNECTOR_Component 8
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#define DRM_MODE_CONNECTOR_9PinDIN 9
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#define DRM_MODE_CONNECTOR_DisplayPort 10
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#define DRM_MODE_CONNECTOR_HDMIA 11
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#define DRM_MODE_CONNECTOR_HDMIB 12
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#define DRM_MODE_CONNECTOR_TV 13
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#define DRM_MODE_CONNECTOR_eDP 14
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#define DRM_MODE_CONNECTOR_VIRTUAL 15
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#define DRM_MODE_CONNECTOR_DSI 16
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#define DRM_MODE_CONNECTOR_DPI 17
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struct drm_mode_get_connector {
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__u64 encoders_ptr;
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__u64 modes_ptr;
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__u64 props_ptr;
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__u64 prop_values_ptr;
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__u32 count_modes;
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__u32 count_props;
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__u32 count_encoders;
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__u32 encoder_id; /**< Current Encoder */
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__u32 connector_id; /**< Id */
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__u32 connector_type;
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__u32 connector_type_id;
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__u32 connection;
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__u32 mm_width; /**< width in millimeters */
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__u32 mm_height; /**< height in millimeters */
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__u32 subpixel;
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__u32 pad;
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};
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#define DRM_MODE_PROP_PENDING (1<<0)
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#define DRM_MODE_PROP_RANGE (1<<1)
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#define DRM_MODE_PROP_IMMUTABLE (1<<2)
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#define DRM_MODE_PROP_ENUM (1<<3) /* enumerated type with text strings */
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#define DRM_MODE_PROP_BLOB (1<<4)
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#define DRM_MODE_PROP_BITMASK (1<<5) /* bitmask of enumerated types */
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/* non-extended types: legacy bitmask, one bit per type: */
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#define DRM_MODE_PROP_LEGACY_TYPE ( \
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DRM_MODE_PROP_RANGE | \
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DRM_MODE_PROP_ENUM | \
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DRM_MODE_PROP_BLOB | \
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DRM_MODE_PROP_BITMASK)
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/* extended-types: rather than continue to consume a bit per type,
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* grab a chunk of the bits to use as integer type id.
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*/
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#define DRM_MODE_PROP_EXTENDED_TYPE 0x0000ffc0
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#define DRM_MODE_PROP_TYPE(n) ((n) << 6)
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#define DRM_MODE_PROP_OBJECT DRM_MODE_PROP_TYPE(1)
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#define DRM_MODE_PROP_SIGNED_RANGE DRM_MODE_PROP_TYPE(2)
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/* the PROP_ATOMIC flag is used to hide properties from userspace that
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* is not aware of atomic properties. This is mostly to work around
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* older userspace (DDX drivers) that read/write each prop they find,
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* witout being aware that this could be triggering a lengthy modeset.
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*/
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#define DRM_MODE_PROP_ATOMIC 0x80000000
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struct drm_mode_property_enum {
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__u64 value;
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char name[DRM_PROP_NAME_LEN];
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};
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struct drm_mode_get_property {
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__u64 values_ptr; /* values and blob lengths */
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__u64 enum_blob_ptr; /* enum and blob id ptrs */
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__u32 prop_id;
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__u32 flags;
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char name[DRM_PROP_NAME_LEN];
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__u32 count_values;
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/* This is only used to count enum values, not blobs. The _blobs is
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* simply because of a historical reason, i.e. backwards compat. */
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__u32 count_enum_blobs;
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};
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struct drm_mode_connector_set_property {
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__u64 value;
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__u32 prop_id;
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__u32 connector_id;
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};
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#define DRM_MODE_OBJECT_CRTC 0xcccccccc
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#define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
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#define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
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#define DRM_MODE_OBJECT_MODE 0xdededede
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#define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
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#define DRM_MODE_OBJECT_FB 0xfbfbfbfb
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#define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
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#define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
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#define DRM_MODE_OBJECT_ANY 0
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struct drm_mode_obj_get_properties {
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__u64 props_ptr;
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__u64 prop_values_ptr;
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__u32 count_props;
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__u32 obj_id;
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__u32 obj_type;
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};
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struct drm_mode_obj_set_property {
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__u64 value;
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__u32 prop_id;
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__u32 obj_id;
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__u32 obj_type;
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};
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struct drm_mode_get_blob {
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__u32 blob_id;
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__u32 length;
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__u64 data;
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};
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struct drm_mode_fb_cmd {
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__u32 fb_id;
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__u32 width;
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__u32 height;
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__u32 pitch;
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__u32 bpp;
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__u32 depth;
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/* driver specific handle */
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__u32 handle;
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};
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#define DRM_MODE_FB_INTERLACED (1<<0) /* for interlaced framebuffers */
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#define DRM_MODE_FB_MODIFIERS (1<<1) /* enables ->modifer[] */
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struct drm_mode_fb_cmd2 {
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__u32 fb_id;
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__u32 width;
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__u32 height;
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__u32 pixel_format; /* fourcc code from drm_fourcc.h */
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__u32 flags; /* see above flags */
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/*
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* In case of planar formats, this ioctl allows up to 4
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* buffer objects with offsets and pitches per plane.
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* The pitch and offset order is dictated by the fourcc,
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* e.g. NV12 (http://fourcc.org/yuv.php#NV12) is described as:
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*
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* YUV 4:2:0 image with a plane of 8 bit Y samples
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* followed by an interleaved U/V plane containing
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* 8 bit 2x2 subsampled colour difference samples.
|
|
*
|
|
* So it would consist of Y as offsets[0] and UV as
|
|
* offsets[1]. Note that offsets[0] will generally
|
|
* be 0 (but this is not required).
|
|
*
|
|
* To accommodate tiled, compressed, etc formats, a
|
|
* modifier can be specified. The default value of zero
|
|
* indicates "native" format as specified by the fourcc.
|
|
* Vendor specific modifier token. Note that even though
|
|
* it looks like we have a modifier per-plane, we in fact
|
|
* do not. The modifier for each plane must be identical.
|
|
* Thus all combinations of different data layouts for
|
|
* multi plane formats must be enumerated as separate
|
|
* modifiers.
|
|
*/
|
|
__u32 handles[4];
|
|
__u32 pitches[4]; /* pitch for each plane */
|
|
__u32 offsets[4]; /* offset of each plane */
|
|
__u64 modifier[4]; /* ie, tiling, compress */
|
|
};
|
|
|
|
#define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
|
|
#define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
|
|
#define DRM_MODE_FB_DIRTY_FLAGS 0x03
|
|
|
|
#define DRM_MODE_FB_DIRTY_MAX_CLIPS 256
|
|
|
|
/*
|
|
* Mark a region of a framebuffer as dirty.
|
|
*
|
|
* Some hardware does not automatically update display contents
|
|
* as a hardware or software draw to a framebuffer. This ioctl
|
|
* allows userspace to tell the kernel and the hardware what
|
|
* regions of the framebuffer have changed.
|
|
*
|
|
* The kernel or hardware is free to update more then just the
|
|
* region specified by the clip rects. The kernel or hardware
|
|
* may also delay and/or coalesce several calls to dirty into a
|
|
* single update.
|
|
*
|
|
* Userspace may annotate the updates, the annotates are a
|
|
* promise made by the caller that the change is either a copy
|
|
* of pixels or a fill of a single color in the region specified.
|
|
*
|
|
* If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
|
|
* the number of updated regions are half of num_clips given,
|
|
* where the clip rects are paired in src and dst. The width and
|
|
* height of each one of the pairs must match.
|
|
*
|
|
* If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
|
|
* promises that the region specified of the clip rects is filled
|
|
* completely with a single color as given in the color argument.
|
|
*/
|
|
|
|
struct drm_mode_fb_dirty_cmd {
|
|
__u32 fb_id;
|
|
__u32 flags;
|
|
__u32 color;
|
|
__u32 num_clips;
|
|
__u64 clips_ptr;
|
|
};
|
|
|
|
struct drm_mode_mode_cmd {
|
|
__u32 connector_id;
|
|
struct drm_mode_modeinfo mode;
|
|
};
|
|
|
|
#define DRM_MODE_CURSOR_BO 0x01
|
|
#define DRM_MODE_CURSOR_MOVE 0x02
|
|
#define DRM_MODE_CURSOR_FLAGS 0x03
|
|
|
|
/*
|
|
* depending on the value in flags different members are used.
|
|
*
|
|
* CURSOR_BO uses
|
|
* crtc_id
|
|
* width
|
|
* height
|
|
* handle - if 0 turns the cursor off
|
|
*
|
|
* CURSOR_MOVE uses
|
|
* crtc_id
|
|
* x
|
|
* y
|
|
*/
|
|
struct drm_mode_cursor {
|
|
__u32 flags;
|
|
__u32 crtc_id;
|
|
__s32 x;
|
|
__s32 y;
|
|
__u32 width;
|
|
__u32 height;
|
|
/* driver specific handle */
|
|
__u32 handle;
|
|
};
|
|
|
|
struct drm_mode_cursor2 {
|
|
__u32 flags;
|
|
__u32 crtc_id;
|
|
__s32 x;
|
|
__s32 y;
|
|
__u32 width;
|
|
__u32 height;
|
|
/* driver specific handle */
|
|
__u32 handle;
|
|
__s32 hot_x;
|
|
__s32 hot_y;
|
|
};
|
|
|
|
struct drm_mode_crtc_lut {
|
|
__u32 crtc_id;
|
|
__u32 gamma_size;
|
|
|
|
/* pointers to arrays */
|
|
__u64 red;
|
|
__u64 green;
|
|
__u64 blue;
|
|
};
|
|
|
|
struct drm_color_ctm {
|
|
/* Conversion matrix in S31.32 format. */
|
|
__s64 matrix[9];
|
|
};
|
|
|
|
struct drm_color_lut {
|
|
/*
|
|
* Data is U0.16 fixed point format.
|
|
*/
|
|
__u16 red;
|
|
__u16 green;
|
|
__u16 blue;
|
|
__u16 reserved;
|
|
};
|
|
|
|
#define DRM_MODE_PAGE_FLIP_EVENT 0x01
|
|
#define DRM_MODE_PAGE_FLIP_ASYNC 0x02
|
|
#define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4
|
|
#define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8
|
|
#define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \
|
|
DRM_MODE_PAGE_FLIP_TARGET_RELATIVE)
|
|
#define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \
|
|
DRM_MODE_PAGE_FLIP_ASYNC | \
|
|
DRM_MODE_PAGE_FLIP_TARGET)
|
|
|
|
/*
|
|
* Request a page flip on the specified crtc.
|
|
*
|
|
* This ioctl will ask KMS to schedule a page flip for the specified
|
|
* crtc. Once any pending rendering targeting the specified fb (as of
|
|
* ioctl time) has completed, the crtc will be reprogrammed to display
|
|
* that fb after the next vertical refresh. The ioctl returns
|
|
* immediately, but subsequent rendering to the current fb will block
|
|
* in the execbuffer ioctl until the page flip happens. If a page
|
|
* flip is already pending as the ioctl is called, EBUSY will be
|
|
* returned.
|
|
*
|
|
* Flag DRM_MODE_PAGE_FLIP_EVENT requests that drm sends back a vblank
|
|
* event (see drm.h: struct drm_event_vblank) when the page flip is
|
|
* done. The user_data field passed in with this ioctl will be
|
|
* returned as the user_data field in the vblank event struct.
|
|
*
|
|
* Flag DRM_MODE_PAGE_FLIP_ASYNC requests that the flip happen
|
|
* 'as soon as possible', meaning that it not delay waiting for vblank.
|
|
* This may cause tearing on the screen.
|
|
*
|
|
* The reserved field must be zero.
|
|
*/
|
|
|
|
struct drm_mode_crtc_page_flip {
|
|
__u32 crtc_id;
|
|
__u32 fb_id;
|
|
__u32 flags;
|
|
__u32 reserved;
|
|
__u64 user_data;
|
|
};
|
|
|
|
/*
|
|
* Request a page flip on the specified crtc.
|
|
*
|
|
* Same as struct drm_mode_crtc_page_flip, but supports new flags and
|
|
* re-purposes the reserved field:
|
|
*
|
|
* The sequence field must be zero unless either of the
|
|
* DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is specified. When
|
|
* the ABSOLUTE flag is specified, the sequence field denotes the absolute
|
|
* vblank sequence when the flip should take effect. When the RELATIVE
|
|
* flag is specified, the sequence field denotes the relative (to the
|
|
* current one when the ioctl is called) vblank sequence when the flip
|
|
* should take effect. NOTE: DRM_IOCTL_WAIT_VBLANK must still be used to
|
|
* make sure the vblank sequence before the target one has passed before
|
|
* calling this ioctl. The purpose of the
|
|
* DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is merely to clarify
|
|
* the target for when code dealing with a page flip runs during a
|
|
* vertical blank period.
|
|
*/
|
|
|
|
struct drm_mode_crtc_page_flip_target {
|
|
__u32 crtc_id;
|
|
__u32 fb_id;
|
|
__u32 flags;
|
|
__u32 sequence;
|
|
__u64 user_data;
|
|
};
|
|
|
|
/* create a dumb scanout buffer */
|
|
struct drm_mode_create_dumb {
|
|
__u32 height;
|
|
__u32 width;
|
|
__u32 bpp;
|
|
__u32 flags;
|
|
/* handle, pitch, size will be returned */
|
|
__u32 handle;
|
|
__u32 pitch;
|
|
__u64 size;
|
|
};
|
|
|
|
/* set up for mmap of a dumb scanout buffer */
|
|
struct drm_mode_map_dumb {
|
|
/** Handle for the object being mapped. */
|
|
__u32 handle;
|
|
__u32 pad;
|
|
/**
|
|
* Fake offset to use for subsequent mmap call
|
|
*
|
|
* This is a fixed-size type for 32/64 compatibility.
|
|
*/
|
|
__u64 offset;
|
|
};
|
|
|
|
struct drm_mode_destroy_dumb {
|
|
__u32 handle;
|
|
};
|
|
|
|
/* page-flip flags are valid, plus: */
|
|
#define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
|
|
#define DRM_MODE_ATOMIC_NONBLOCK 0x0200
|
|
#define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
|
|
|
|
#define DRM_MODE_ATOMIC_FLAGS (\
|
|
DRM_MODE_PAGE_FLIP_EVENT |\
|
|
DRM_MODE_PAGE_FLIP_ASYNC |\
|
|
DRM_MODE_ATOMIC_TEST_ONLY |\
|
|
DRM_MODE_ATOMIC_NONBLOCK |\
|
|
DRM_MODE_ATOMIC_ALLOW_MODESET)
|
|
|
|
struct drm_mode_atomic {
|
|
__u32 flags;
|
|
__u32 count_objs;
|
|
__u64 objs_ptr;
|
|
__u64 count_props_ptr;
|
|
__u64 props_ptr;
|
|
__u64 prop_values_ptr;
|
|
__u64 reserved;
|
|
__u64 user_data;
|
|
};
|
|
|
|
/**
|
|
* Create a new 'blob' data property, copying length bytes from data pointer,
|
|
* and returning new blob ID.
|
|
*/
|
|
struct drm_mode_create_blob {
|
|
/** Pointer to data to copy. */
|
|
__u64 data;
|
|
/** Length of data to copy. */
|
|
__u32 length;
|
|
/** Return: new property ID. */
|
|
__u32 blob_id;
|
|
};
|
|
|
|
/**
|
|
* Destroy a user-created blob property.
|
|
*/
|
|
struct drm_mode_destroy_blob {
|
|
__u32 blob_id;
|
|
};
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif
|