Commit graph

331 commits

Author SHA1 Message Date
Dave Airlie c671e1e302 drm/vc4: fix warning in validate printf.
This just fixes a warning on 64-bit builds:

  drivers/gpu/drm/vc4/vc4_validate.c: In function ‘validate_gl_shader_rec’:
  drivers/gpu/drm/vc4/vc4_validate.c:864:12: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘size_t {aka long unsigned int}’ [-Wformat=]

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-17 18:32:31 -08:00
Dave Airlie 28f03607bb Merge tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next
Since your main drm-next pull isn't out of the door yet I figured I might
as well flush out drm-misc instead of delaying for 4.6. It's really just
random stuff all over, biggest thing probably connector_mask tracking from
Maarten.

* tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel: (24 commits)
  drm/fb_cma_helper: Remove implicit call to disable_unused_functions
  drm/sysfs: use kobj_to_dev()
  drm/i915: Init power domains early in driver load
  drm: Do not set connector->encoder in drivers
  apple-gmux: Add initial documentation
  drm: move MODULE_PARM_DESC to other file
  drm/edid: index CEA/HDMI mode tables using the VIC
  drm/atomic: Remove drm_atomic_connectors_for_crtc.
  drm/i915: Update connector_mask during readout, v2.
  drm: Remove opencoded drm_gem_object_release_handle()
  drm: Do not set outparam on error during GEM handle allocation
  drm/docs: more leftovers from the big vtable documentation pile
  drm/atomic-helper: Reject legacy flips on a disabled pipe
  drm/atomic: add connector mask to drm_crtc_state.
  drm/tegra: Use __drm_atomic_helper_reset_connector for subclassing connector state, v2.
  drm/atomic: Add __drm_atomic_helper_connector_reset, v2.
  drm/i915: Set connector_state->connector using the helper.
  drm: Use a normal idr allocation for the obj->name
  drm: Only bump object-reference count when adding first handle
  drm: Balance error path for GEM handle allocation
  ...
2016-01-18 07:01:16 +10:00
Maarten Lankhorst 14de6c44d1 drm/atomic: Remove drm_atomic_connectors_for_crtc.
Now that connector_mask is reliable there's no need for this
function any more.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1451908400-25147-6-git-send-email-maarten.lankhorst@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-06 16:37:39 +01:00
Dave Airlie 0239c75978 Merge tag 'drm-vc4-next-2015-12-21' of http://github.com/anholt/linux into drm-next
I've decided to just send this fixes-for-next pull request now, even if
we don't have a patch for the CONFIG_PM_SLEEP build failure reviewed.
If you like my patch for that, I'd be happy to see it applied directly.

This pull request brings in little fixes from Dan Carpenter for the 3D
support added in this -next cycle.

* tag 'drm-vc4-next-2015-12-21' of http://github.com/anholt/linux:
  drm/vc4: fix an error code
  drm/vc4: allocate enough memory in vc4_save_hang_state()
  drm/vc4: copy_to_user() returns the number of bytes remaining
2015-12-22 16:19:37 +10:00
Dan Carpenter 5645e785ce drm/vc4: fix an error code
"exec->exec_bo" is NULL at this point so this code returns success.  We
want to return -ENOMEM.

Fixes: d5b1a78a77 ('drm/vc4: Add support for drawing 3D frames.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2015-12-17 11:40:30 -08:00
Dan Carpenter 7e5082fbc0 drm/vc4: allocate enough memory in vc4_save_hang_state()
"state" is smaller than "kernel_state" so we end up corrupting memory.

Fixes: 214613656b ('drm/vc4: Add an interface for capturing the GPU state after a hang.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2015-12-17 11:40:21 -08:00
Dan Carpenter 65c4777de5 drm/vc4: copy_to_user() returns the number of bytes remaining
The copy_to/from_user() functions return the number of bytes remaining
to be copied.  We want to return error codes here.

Also it's a bad idea to print an error message if a copy from user fails
because users can use that to spam /var/log/messages which is annoying
so I removed those.

Fixes: 214613656b ('drm/vc4: Add an interface for capturing the GPU state after a hang.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2015-12-17 11:40:11 -08:00
Nicolas Iooss e112e593b2 drm: use dev_name as default unique name in drm_dev_alloc()
The following code pattern exists in some DRM drivers:

    ddev = drm_dev_alloc(&driver, parent_dev);
    drm_dev_set_unique(ddev, dev_name(parent_dev));

(Sometimes dev_name(ddev->dev) is used, which is the same.)

As suggested in
http://lists.freedesktop.org/archives/dri-devel/2015-December/096441.html,
the unique name of a new DRM device can be set as dev_name(parent_dev)
when parent_dev is not NULL (vgem is a special case).

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-15 13:56:06 +01:00
Dave Airlie 21de54b3c4 Merge tag 'drm-vc4-next-2015-12-11' of http://github.com/anholt/linux into drm-next
This pull request brings in 3D acceleration support for the VC4 GPU.
While there is still performance work to be done (particularly
surrounding RCL generation), the CL submit ABI should be settled and
done now.

* tag 'drm-vc4-next-2015-12-11' of http://github.com/anholt/linux:
  drm/vc4: Add an interface for capturing the GPU state after a hang.
  drm/vc4: Add support for async pageflips.
  drm/vc4: Add support for drawing 3D frames.
  drm/vc4: Bind and initialize the V3D engine.
  drm/vc4: Fix a typo in a V3D debug register.
  drm/vc4: Add an API for creating GPU shaders in GEM BOs.
  drm/vc4: Add create and map BO ioctls.
  drm/vc4: Add a BO cache.
  drm: Create a driver hook for allocating GEM object structs.
2015-12-15 10:43:27 +10:00
Ville Syrjälä 13a3d91f17 drm: Pass 'name' to drm_encoder_init()
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.

@@
identifier dev, encoder, funcs;
@@
 int drm_encoder_init(struct drm_device *dev,
                      struct drm_encoder *encoder,
                      const struct drm_encoder_funcs *funcs,
                      int encoder_type
+                     ,const char *name, int DOTDOTDOT
                      )
{ ... }

@@
identifier dev, encoder, funcs;
@@
 int drm_encoder_init(struct drm_device *dev,
                      struct drm_encoder *encoder,
                      const struct drm_encoder_funcs *funcs,
                      int encoder_type
+                     ,const char *name, int DOTDOTDOT
                      );

@@
expression E1, E2, E3, E4;
@@
 drm_encoder_init(E1, E2, E3, E4
+                 ,NULL
                  )

v2: Add ', or NULL...' to @name kernel doc (Jani)
    Annotate the function with __printf() attribute (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670818-2966-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11 09:13:20 +01:00
Ville Syrjälä b0b3b79511 drm: Pass 'name' to drm_universal_plane_init()
Done with coccinelle for the most part. It choked on
msm/mdp/mdp5/mdp5_plane.c like so:
"BAD:!!!!!  enum drm_plane_type type;"
No idea how to deal with that, so I just fixed that up
by hand.

Also it thinks '...' is part of the semantic patch, so I put an
'int DOTDOTDOT' placeholder in its place and got rid of it with
sed afterwards.

I didn't convert drm_plane_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.

@@
typedef uint32_t;
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
 int drm_universal_plane_init(struct drm_device *dev,
                              struct drm_plane *plane,
                              unsigned long possible_crtcs,
                              const struct drm_plane_funcs *funcs,
                              const uint32_t *formats,
                              unsigned int format_count,
                              enum drm_plane_type type
+                             ,const char *name, int DOTDOTDOT
                              )
{ ... }

@@
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
 int drm_universal_plane_init(struct drm_device *dev,
                              struct drm_plane *plane,
                              unsigned long possible_crtcs,
                              const struct drm_plane_funcs *funcs,
                              const uint32_t *formats,
                              unsigned int format_count,
                              enum drm_plane_type type
+                             ,const char *name, int DOTDOTDOT
                              );

@@
expression E1, E2, E3, E4, E5, E6, E7;
@@
 drm_universal_plane_init(E1, E2, E3, E4, E5, E6, E7
+                         ,NULL
                          )

v2: Split crtc and plane changes apart
    Pass NUL for no-name instead of ""
    Leave drm_plane_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
    Annotate the function with __printf() attribute (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670795-2853-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11 09:13:10 +01:00
Ville Syrjälä f98828769c drm: Pass 'name' to drm_crtc_init_with_planes()
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.

I didn't convert drm_crtc_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.

@@
identifier dev, crtc, primary, cursor, funcs;
@@
 int drm_crtc_init_with_planes(struct drm_device *dev,
                               struct drm_crtc *crtc,
                               struct drm_plane *primary, struct drm_plane *cursor,
                               const struct drm_crtc_funcs *funcs
+                              ,const char *name, int DOTDOTDOT
                               )
{ ... }

@@
identifier dev, crtc, primary, cursor, funcs;
@@
 int drm_crtc_init_with_planes(struct drm_device *dev,
                               struct drm_crtc *crtc,
                               struct drm_plane *primary, struct drm_plane *cursor,
                               const struct drm_crtc_funcs *funcs
+                              ,const char *name, int DOTDOTDOT
                               );

@@
expression E1, E2, E3, E4, E5;
@@
 drm_crtc_init_with_planes(E1, E2, E3, E4, E5
+                          ,NULL
                           )

v2: Split crtc and plane changes apart
    Pass NULL for no-name instead of ""
    Leave drm_crtc_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
    Annotate the function with __printf() attribute (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670771-2751-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11 09:12:44 +01:00
Eric Anholt 214613656b drm/vc4: Add an interface for capturing the GPU state after a hang.
This can be parsed with vc4-gpu-tools tools for trying to figure out
what was going on.

v2: Use __u32-style types.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:49:49 -08:00
Eric Anholt b501bacc60 drm/vc4: Add support for async pageflips.
An async pageflip stores the modeset to be done and executes it once
the BOs are ready to be displayed.  This gets us about 3x performance
in full screen rendering with pageflipping.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:10:03 -08:00
Eric Anholt d5b1a78a77 drm/vc4: Add support for drawing 3D frames.
The user submission is basically a pointer to a command list and a
pointer to uniforms.  We copy those in to the kernel, validate and
relocate them, and store the result in a GPU BO which we queue for
execution.

v2: Drop support for NV shader recs (not necessary for GL), simplify
    vc4_use_bo(), improve bin flush/semaphore checks, use __u32 style
    types.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:05:10 -08:00
Eric Anholt d3f5168a08 drm/vc4: Bind and initialize the V3D engine.
This is the component of the GPU that does 3D rendering.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:05:10 -08:00
Eric Anholt 1fa81589bb drm/vc4: Fix a typo in a V3D debug register.
Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:05:09 -08:00
Eric Anholt 463873d570 drm/vc4: Add an API for creating GPU shaders in GEM BOs.
Since we have no MMU, the kernel needs to validate that the submitted
shader code won't make any accesses to memory that the user doesn't
control, which involves banning some operations (general purpose DMA
writes), and tracking where we need to write out pointers for other
operations (texture sampling).  Once it's validated, we return a GEM
BO containing the shader, which doesn't allow mapping for write or
exporting to other subsystems.

v2: Use __u32-style types.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:05:09 -08:00
Eric Anholt d5bc60f6ad drm/vc4: Add create and map BO ioctls.
While there exist dumb APIs for creating and mapping BOs, one of the
rules is that drivers doing 3D acceleration have to provide their own
APIs for buffer allocation (besides, the pitch/height parameters of
the dumb alloc don't really make sense for a lot of 3D allocations).

v2: Use __u32-style types, use "drm.h" instead of <drm/drm.h>.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:04:57 -08:00
Eric Anholt c826a6e106 drm/vc4: Add a BO cache.
We need to allocate new BOs in the kernel as part of each frame, but
the CMA allocator is way too slow for that.  As an optimization, keep
track of recently-freed BOs and reuse them, with a 1 second timeout to
fully free them back to the system.

This improves 3D performance by about 15%.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-07 20:01:56 -08:00
Eric Anholt bf893acc16 drm/vc4: Make sure that planes aren't scaled.
We would scan out the memory around them if an upscale was attempted,
and would just scan out incorrectly for downscaling.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-11-17 12:27:03 -08:00
Eric Anholt 36f4f69a09 drm/vc4: Fix some failure to track __iomem decorations on pointers.
Caught by the kbuild test robot.

v2: Fix the +i I dropped in the first version.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-11-17 12:26:59 -08:00
Dan Carpenter 79513237da drm/vc4: checking for NULL instead of IS_ERR
vc4_plane_init() returns an ERR_PTR on error, it doesn't return NULL.
This was obviously intended because the next lines call
PTR_ERR(primary_plane) already.

Fixes: c8b75bca92 ('Eric Anholt <eric@anholt.net>')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2015-11-17 12:26:49 -08:00
Julia Lawall 2fa8e90433 drm/vc4: fix itnull.cocci warnings
Connector cannot be null because it is a list entry, ie accessed at an
offset from the positions of the list structure pointers themselves.

Generated by: scripts/coccinelle/iterators/itnull.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Eric Anholt <eric@anholt.net>
2015-11-17 12:26:45 -08:00
Julia Lawall e2ab3218f4 drm/vc4: fix platform_no_drv_owner.cocci warnings
drivers/gpu/drm/vc4/vc4_drv.c:248:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Eric Anholt <eric@anholt.net>
2015-11-17 12:26:35 -08:00
kbuild test robot 91276ae2ea drm/vc4: vc4_plane_duplicate_state() can be static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2015-11-17 12:26:27 -08:00
Guenter Roeck 2565df91a2 drm/vc4: Add dependency on HAVE_DMA_ATTRS, and select DRM_GEM_CMA_HELPER
Avoid the following build errors, seen with m68k:allmodconfig and other
architectures which do not support HAVE_DMA_ATTRS.

ERROR: "drm_gem_cma_create" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_prime_mmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_prime_get_sg_table" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_vm_ops" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_mmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_prime_vunmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_prime_import_sg_table" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_free_object" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_prime_vmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_dumb_map_offset" [drivers/gpu/drm/vc4/vc4.ko] undefined!
ERROR: "drm_gem_cma_create" [drivers/gpu/drm/drm_kms_helper.ko] undefined!
ERROR: "drm_gem_cma_describe" [drivers/gpu/drm/drm_kms_helper.ko] undefined!
ERROR: "drm_gem_cma_free_object" [drivers/gpu/drm/drm_kms_helper.ko] undefined!

Acked-by: Eric Anholt <eric@anholt.net>
Fixes: c8b75bca92 ("drm/vc4: Add KMS support for Raspberry Pi.")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-11-10 08:25:27 +10:00
Dave Airlie 1f43710a8e Merge tag 'drm-vc4-next-2015-10-21' of http://github.com/anholt/linux into drm-next
This pull request introduces the vc4 driver, for kernel modesetting on
the Raspberry Pi (bcm2835/bcm2836 architectures).  It currently
supports a display plane and cursor on the HDMI output.  The driver
doesn't do 3D, power management, or overlay planes yet.

[airlied: fixup the enable/disable vblank APIs]

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

* tag 'drm-vc4-next-2015-10-21' of http://github.com/anholt/linux:
  drm/vc4: Allow vblank to be disabled
  drm/vc4: Use the fbdev_cma helpers
  drm/vc4: Add KMS support for Raspberry Pi.
  drm/vc4: Add devicetree bindings for VC4.
2015-10-22 10:31:17 +10:00
Derek Foreman 98a4450454 drm/vc4: Allow vblank to be disabled
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2015-10-21 10:33:13 +01:00
Derek Foreman 48666d5631 drm/vc4: Use the fbdev_cma helpers
Keep the fbdev_cma pointer around so we can use it on hotplog and close
to ensure the frame buffer console is in a useful state.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2015-10-21 10:33:12 +01:00
Eric Anholt c8b75bca92 drm/vc4: Add KMS support for Raspberry Pi.
This is enough for fbcon and bringing up X using
xf86-video-modesetting.  It doesn't support the 3D accelerator or
power management yet.

v2: Drop FB_HELPER select thanks to Archit's patches.  Do manual init
    ordering instead of using the .load hook.  Structure registration
    more like tegra's, but still using the typical "component" code.
    Drop no-op hooks for atomic_begin and mode_fixup() now that
    they're optional.  Drop sentinel in Makefile.  Fix minor style
    nits I noticed on another reread.

v3: Use the new bcm2835 clk driver to manage pixel/HSM clocks instead
    of having a fixed video mode.  Use exynos-style component driver
    matching instead of devicetree nodes to list the component driver
    instances.  Rename compatibility strings to say bcm2835, and
    distinguish pv0/1/2.  Clean up some h/vsync code, and add in
    interlaced mode setup.  Fix up probe/bind error paths.  Use
    bitops.h macros for vc4_regs.h

v4: Include i2c.h, allow building under COMPILE_TEST, drop msleep now
    that other bugs have been fixed, add timeouts to cpu_relax()
    loops, rename hpd-gpio to hpd-gpios.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-21 10:33:12 +01:00