diff options
Diffstat (limited to 'Documentation/gpu')
| -rw-r--r-- | Documentation/gpu/drm-internals.rst | 66 | ||||
| -rw-r--r-- | Documentation/gpu/drm-kms-helpers.rst | 6 | ||||
| -rw-r--r-- | Documentation/gpu/drm-kms.rst | 4 | ||||
| -rw-r--r-- | Documentation/gpu/drm-mm.rst | 12 | ||||
| -rw-r--r-- | Documentation/gpu/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/gpu/pl111.rst | 6 | ||||
| -rw-r--r-- | Documentation/gpu/todo.rst | 13 |
7 files changed, 39 insertions, 69 deletions
diff --git a/Documentation/gpu/drm-internals.rst b/Documentation/gpu/drm-internals.rst index babfb6143bd9..0d936c67bf7d 100644 --- a/Documentation/gpu/drm-internals.rst +++ b/Documentation/gpu/drm-internals.rst @@ -98,6 +98,9 @@ DRIVER_ATOMIC implement appropriate obj->atomic_get_property() vfuncs for any modeset objects with driver specific properties. +DRIVER_SYNCOBJ + Driver support drm sync objects. + Major, Minor and Patchlevel ~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -149,60 +152,15 @@ Device Instance and Driver Handling Driver Load ----------- -IRQ Registration -~~~~~~~~~~~~~~~~ - -The DRM core tries to facilitate IRQ handler registration and -unregistration by providing :c:func:`drm_irq_install()` and -:c:func:`drm_irq_uninstall()` functions. Those functions only -support a single interrupt per device, devices that use more than one -IRQs need to be handled manually. - -Managed IRQ Registration -'''''''''''''''''''''''' - -:c:func:`drm_irq_install()` starts by calling the irq_preinstall -driver operation. The operation is optional and must make sure that the -interrupt will not get fired by clearing all pending interrupt flags or -disabling the interrupt. - -The passed-in IRQ will then be requested by a call to -:c:func:`request_irq()`. If the DRIVER_IRQ_SHARED driver feature -flag is set, a shared (IRQF_SHARED) IRQ handler will be requested. - -The IRQ handler function must be provided as the mandatory irq_handler -driver operation. It will get passed directly to -:c:func:`request_irq()` and thus has the same prototype as all IRQ -handlers. It will get called with a pointer to the DRM device as the -second argument. - -Finally the function calls the optional irq_postinstall driver -operation. The operation usually enables interrupts (excluding the -vblank interrupt, which is enabled separately), but drivers may choose -to enable/disable interrupts at a different time. - -:c:func:`drm_irq_uninstall()` is similarly used to uninstall an -IRQ handler. It starts by waking up all processes waiting on a vblank -interrupt to make sure they don't hang, and then calls the optional -irq_uninstall driver operation. The operation must disable all hardware -interrupts. Finally the function frees the IRQ by calling -:c:func:`free_irq()`. - -Manual IRQ Registration -''''''''''''''''''''''' - -Drivers that require multiple interrupt handlers can't use the managed -IRQ registration functions. In that case IRQs must be registered and -unregistered manually (usually with the :c:func:`request_irq()` and -:c:func:`free_irq()` functions, or their :c:func:`devm_request_irq()` and -:c:func:`devm_free_irq()` equivalents). - -When manually registering IRQs, drivers must not set the -DRIVER_HAVE_IRQ driver feature flag, and must not provide the -irq_handler driver operation. They must set the :c:type:`struct -drm_device <drm_device>` irq_enabled field to 1 upon -registration of the IRQs, and clear it to 0 after unregistering the -IRQs. + +IRQ Helper Library +~~~~~~~~~~~~~~~~~~ + +.. kernel-doc:: drivers/gpu/drm/drm_irq.c + :doc: irq helpers + +.. kernel-doc:: drivers/gpu/drm/drm_irq.c + :export: Memory Manager Initialization ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/Documentation/gpu/drm-kms-helpers.rst b/Documentation/gpu/drm-kms-helpers.rst index c075aadd7078..7c5e2549a58a 100644 --- a/Documentation/gpu/drm-kms-helpers.rst +++ b/Documentation/gpu/drm-kms-helpers.rst @@ -143,6 +143,12 @@ Bridge Helper Reference .. kernel-doc:: drivers/gpu/drm/drm_bridge.c :export: +Panel-Bridge Helper Reference +----------------------------- + +.. kernel-doc:: drivers/gpu/drm/bridge/panel.c + :export: + .. _drm_panel_helper: Panel Helper Reference diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst index bfecd21a8cdf..2d77c9580164 100644 --- a/Documentation/gpu/drm-kms.rst +++ b/Documentation/gpu/drm-kms.rst @@ -612,8 +612,8 @@ operation handler. Vertical Blanking and Interrupt Handling Functions Reference ------------------------------------------------------------ -.. kernel-doc:: include/drm/drm_irq.h +.. kernel-doc:: include/drm/drm_vblank.h :internal: -.. kernel-doc:: drivers/gpu/drm/drm_irq.c +.. kernel-doc:: drivers/gpu/drm/drm_vblank.c :export: diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst index 96b9c34c21e4..9412798645c1 100644 --- a/Documentation/gpu/drm-mm.rst +++ b/Documentation/gpu/drm-mm.rst @@ -484,3 +484,15 @@ DRM Cache Handling .. kernel-doc:: drivers/gpu/drm/drm_cache.c :export: + +DRM Sync Objects +=========================== + +.. kernel-doc:: drivers/gpu/drm/drm_syncobj.c + :doc: Overview + +.. kernel-doc:: include/drm/drm_syncobj.h + :export: + +.. kernel-doc:: drivers/gpu/drm/drm_syncobj.c + :export: diff --git a/Documentation/gpu/index.rst b/Documentation/gpu/index.rst index feae37fa7ca3..35d673bf9b56 100644 --- a/Documentation/gpu/index.rst +++ b/Documentation/gpu/index.rst @@ -12,6 +12,7 @@ Linux GPU Driver Developer's Guide drm-uapi i915 meson + pl111 tegra tinydrm vc4 diff --git a/Documentation/gpu/pl111.rst b/Documentation/gpu/pl111.rst new file mode 100644 index 000000000000..9b03736d33dd --- /dev/null +++ b/Documentation/gpu/pl111.rst @@ -0,0 +1,6 @@ +========================================== + drm/pl111 ARM PrimeCell PL111 CLCD Driver +========================================== + +.. kernel-doc:: drivers/gpu/drm/pl111/pl111_drv.c + :doc: ARM PrimeCell PL111 CLCD Driver diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 1bdb7356a310..95a517077eb0 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -177,19 +177,6 @@ following drivers still use ``struct_mutex``: ``msm``, ``omapdrm`` and Contact: Daniel Vetter, respective driver maintainers -Switch to drm_connector_list_iter for any connector_list walking ----------------------------------------------------------------- - -Connectors can be hotplugged, and we now have a special list of helpers to walk -the connector_list in a race-free fashion, without incurring deadlocks on -mutexes and other fun stuff. - -Unfortunately most drivers are not converted yet. At least all those supporting -DP MST hotplug should be converted, since for those drivers the difference -matters. See drm_for_each_connector_iter() vs. drm_for_each_connector(). - -Contact: Daniel Vetter - Core refactorings ================= |