- 11 Jun, 2018 13 commits
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Ville Syrjälä authored
Stop playing around with plane->crtc/fb/old_fb with atomic drivers. Make life a lot simpler when we don't have to do the magic old_fb vs. fb dance around plane updates. That way we can't risk plane->fb getting out of sync with plane->state->fb and we're less likely to leak any refcounts as well. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-14-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
We want to get rid of plane->fb/crtc on atomic drivers. Stop setting them. Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-13-ville.syrjala@linux.intel.comReviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
We want to get rid of plane->crtc on atomic drivers. Stop setting it. v2: s/fb/crtc/ in the commit message (Gerd) Cc: David Airlie <airlied@linux.ie> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: virtualization@lists.linux-foundation.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-12-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
We want to get rid of plane->fb/crtc on atomic drivers. Stop setting them. v2: Catch a few more cases Cc: Rob Clark <robdclark@gmail.com> Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> #v1 Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-11-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
We want to get rid of plane->crtc on atomic drivers. Stop setting it. Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Inki Dae <inki.dae@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-10-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
We want to get rid of plane->fb/crtc on atomic drivers. Stop setting them. v2: Fix up the comment in intel_crtc_active() and nuke the rest of the stale comments (Daniel) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> #v1 Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-9-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
We want to get rid of plane->fb on atomic drivers. Stop setting it. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-8-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
plane->fb/old_fb/crtc should no longer be used by atomic drivers. Stop messing about with them. Cc: Deepak Rawat <drawat@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Sinclair Yeh <syeh@vmware.com> Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-7-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
Instead of looking at the (soon to be deprecated) plane->fb we'll examing plane->state->fb instead. We can do this because vmw_du_crtc_atomic_check() prevents us from enabling a crtc without the primary plane also being enabled. Due to that same reason, I'm actually not sure what the checks here are for NULL fb. If we can't enable the crtc without an enabled plane we should always have an fb. But I'll leave that for someone else to figure out. Cc: Deepak Rawat <drawat@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Sinclair Yeh <syeh@vmware.com> Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Deepak Rawat <drawat@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-6-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
We want to get rid of plane->fb on atomic drivers. Stop setting it. Cc: Deepak Rawat <drawat@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Sinclair Yeh <syeh@vmware.com> Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Deepak Rawat <drawat@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-5-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
The only caller of vmw_kms_update_implicit_fb() is the page_flip hook which itself gets called with the plane mutex already held. Hence we can look at plane->state safely. v2: Drop the bogus lockdep assert Cc: Deepak Rawat <drawat@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Sinclair Yeh <syeh@vmware.com> Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Deepak Rawat <drawat@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-4-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
Instead of plane->fb (which we're going to deprecate for atomic drivers) we need to look at plane->state->fb. The maze of code leading to vmw_kms_helper_dirty() wasn't particularly clear, but my analysis concluded that the calls originating from vmw_*_primary_plane_atomic_update() all pass in the crtc which means we'll never end up in this branch of the function. All other callers use drm_modeset_lock_all() somewhere higher up, which means accessing plane->state is safe. v2: Drop the comment and make the code do what it did before (Thomas) v3: Drop the bogus lockdep assert Cc: Deepak Rawat <drawat@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Sinclair Yeh <syeh@vmware.com> Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-3-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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Ville Syrjälä authored
Instead of looking at plane->fb let's look at the proper new plane state. Not that the code makes a ton of sense. It's only going through the crtcs in the atomic state, so assuming not all of them are included we're not even calculating the total bandwidth here. Also we're not considering whether each crtc is actually enabled or not. Cc: Deepak Rawat <drawat@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Sinclair Yeh <syeh@vmware.com> Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-2-ville.syrjala@linux.intel.comReviewed-by: Sinclair Yeh <syeh@vmware.com>
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- 02 Jun, 2018 1 commit
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Lubosz Sarnecki authored
This adds the Vive Pro's EDID information and sets EDID_QUIRK_NON_DESKTOP. Signed-off-by: Lubosz Sarnecki <lubosz.sarnecki@collabora.com> Signed-off-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Cc: <stable@vger.kernel.org> # v4.15+ Link: https://patchwork.freedesktop.org/patch/msgid/20180529115215.4526-1-lubosz.sarnecki@collabora.com
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- 01 Jun, 2018 1 commit
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Gerd Hoffmann authored
So drivers don't need dummy functions just returning NULL. Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180529135918.19729-1-kraxel@redhat.com
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- 31 May, 2018 3 commits
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Dave Stevenson authored
This is the format generated by VC4's H.264 engine, and preferred by the ISP as well. By displaying SAND buffers directly, we can avoid needing to use the ISP to rewrite the SAND H.264 output to linear before display. This is a joint effort by Dave Stevenson (who wrote the initial patch and DRM demo) and Eric Anholt (drm_fourcc.h generalization, safety checks, RGBA support). v2: Make the parameter macro give all of the middle 48 bits (suggested by Daniels). Fix fourcc_mod_broadcom_mod()'s bits/shift being swapped. Mark NV12/21 as supported, not YUV420. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> Signed-off-by: Eric Anholt <eric@anholt.net> Cc: Daniel Vetter <daniel@ffwll.ch> Acked-by: Daniel Stone <daniels@collabora.com> (v1) Cc: Boris Brezillon <boris.brezillon@bootlin.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180316220435.31416-3-eric@anholt.net
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Eric Anholt authored
Daniel's format_mod_supported() patch predated Dave's for NV21/61, and I didn't catch that when rebasing. This is a problem since the formats are now getting validated before being passed to the driver's atomic hooks. Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Daniel Stone <daniels@collabora.com> Cc: Dave Stevenson <dave.stevenson@raspberrypi.org> Fixes: 423ad7b3 ("drm/vc4: Advertise supported modifiers for planes") Link: https://patchwork.freedesktop.org/patch/msgid/20180316220435.31416-2-eric@anholt.net
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Eric Anholt authored
For parameterized modifiers (Broadcom's SAND and UIF), we need to allow the parameter fields to be filled in, while exposing only the variant of the modifier with the parameter unfilled in the internal arrays and the format blob. Signed-off-by: Eric Anholt <eric@anholt.net> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180316220435.31416-1-eric@anholt.netReviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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- 30 May, 2018 1 commit
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Ville Syrjälä authored
Up to now we've used the plane's modifier list as the primary source of information for which modifiers are supported by a given plane. In order to allow auxiliary metadata to be embedded within the bits of the modifier we need to stop doing that. Thus we have to make .format_mod_supported() aware of the plane's capabilities and gracefully deal with any modifier being passed in directly from userspace. v2: Rebase after NV12 Simplify Cc: Eric Anholt <eric@anholt.net> References: https://lists.freedesktop.org/archives/dri-devel/2018-March/169782.htmlSigned-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180518162159.30305-1-ville.syrjala@linux.intel.comReviewed-by: Eric Anholt <eric@anholt.net>
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- 29 May, 2018 2 commits
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Lukasz Majewski authored
This commit adds support for AUO's 7.0" display. Signed-off-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180514190849.18723-1-lukma@denx.de
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Souptick Joarder authored
Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. commit 1c8f4220 ("mm: change return type to vm_fault_t") Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180510134203.GA25166@jordon-HP-15-Notebook-PC
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- 28 May, 2018 2 commits
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Daniel Vetter authored
Copypasta mistake. Fixes: 742547b7 ("drm/fb_helper: Create wrappers for blit, copyarea and fillrect funcs") Cc: Archit Taneja <architt@codeaurora.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Acked-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180524090105.21196-1-daniel.vetter@ffwll.ch
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Arnd Bergmann authored
Disabling CONFIG_PM produces a compile time warning when these functions are not referenced: drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:1072:12: error: 'sun6i_dsi_runtime_suspend' defined but not used [-Werror=unused-function] static int sun6i_dsi_runtime_suspend(struct device *dev) ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:1043:12: error: 'sun6i_dsi_runtime_resume' defined but not used [-Werror=unused-function] static int sun6i_dsi_runtime_resume(struct device *dev) ^~~~~~~~~~~~~~~~~~~~~~~~ Fixes: 133add5b ("drm/sun4i: Add Allwinner A31 MIPI-DSI controller support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180525155030.3667352-1-arnd@arndb.de
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- 25 May, 2018 9 commits
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Ville Syrjälä authored
We want to get rid of plane->fb on atomic drivers. Stop looking at it. Daniel pointed out that the drm_framebuffer_put() in the plane cleanup indicates that the driver doesn't shut things down cleanly. To do that we should be able to just call drm_atomic_helper_shutdown(). Not really sure the current cleanup sequence is actually sane, but whatever. v2: Replace the drm_framebuffer_put() with drm_atomic_helper_shutdown() (Daniel) Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-10-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Ville Syrjälä authored
omap_framebuffer_get_next_connector() uses plane->fb which we want to deprecate for atomic drivers. As omap_framebuffer_get_next_connector() is unused just nuke the entire function. Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-11-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Ville Syrjälä authored
Clean up the ugly tmp->primary-> stuff in __drm_mode_set_config_internal() with a local plane variable. Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-13-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Ville Syrjälä authored
We want to get rid of plane->crtc on atomic drivers. Stop looking at it. Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-3-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Ville Syrjälä authored
We want to get rid of plane->crtc on atomic drivers. Stop looking at it. Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-2-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Ville Syrjälä authored
We want to get rid of plane->fb/crtc on atomic drivers. Stop looking at them. v2: Catch the plane->crtc case too Cc: Rob Clark <robdclark@gmail.com> Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> #v1 Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-1-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Ville Syrjälä authored
We want to stop using plane->fb with atomic driver, so stop looking at it. I have no idea what this code is trying to achieve. There is no corresponding check in the enable path. Also since arc_pgu_set_pxl_fmt() will anyway oops if there is no fb I'm going to assuming that I can just remove the check entirely. There seems to be a general shortage of .atomic_check() in this driver... Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180405195035.24722-1-ville.syrjala@linux.intel.comReviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Alexey Brodkin <abrodkin@synopys.com>
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Ville Syrjälä authored
Fix up a bunch of bad indentation and insconsistent comments in edid_cea_modes[]. v2: Instead of stripping the aspect ratio comments let's add them to all modes Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180524192035.9776-1-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>
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Oleksandr Andrushchenko authored
Building for a 32-bit target results in warnings from casting between a 32-bit pointer and a 64-bit integer. Fix the warnings by casting those pointers to uintptr_t first. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180523113630.29811-1-andr2000@gmail.com
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- 24 May, 2018 5 commits
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Chris Wilson authored
If we can use an unmappable ring, try to pin it out of the mappable aperture. This simple layout preference is to try and keep the mappable aperture reserved and available to handle GGTT mmapping requests from userspace without causing evictions and GPU stalls. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180521082131.13744-4-chris@chris-wilson.co.uk
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Chris Wilson authored
To no surprise (since we've flip-flopped over the use of PIN_HIGH a few times), doing a search by address over a pathologically fragmented address space is exceeding slow. To protect ourselves from nearly unbounded latency (think searching a million holes while under struct_mutex), limit the search for the highest available hole and fallback to best-fit if it fails. In the pathologically fragmented case, such as igt/gem_ctx_thrash, the effect is dramatic, bringing the runtime down from hours to seconds (depending on how many other slow searches you hit, e.g. alloc_iova() and alloc_vmap_area() both degrade to a slow rbtree walk after their small cache is exhausted). For the real world, the number of search steps is unlikely to be significant as we should only need to search once per new context. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180521082131.13744-3-chris@chris-wilson.co.uk
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Chris Wilson authored
Searching for an available hole by address is slow, as there no guarantee that a hole will be available and so we must walk over all nodes in the rbtree before we determine the search was futile. In many cases, the caller doesn't strictly care for the highest available hole and was just opportunistically laying out the address space in a preferred order. In such cases, the caller can accept any address and would rather do so then do a slow walk. To be able to mix search strategies, the caller wants to tell the drm_mm how long to spend on the search. Without a good guide for what should be the best split, start with a request to try once at most. That is return the top-most (or lowest) hole if it fulfils the alignment and size requirements. v2: Documentation, by why of example (selftests) and kerneldoc. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180521082131.13744-2-chris@chris-wilson.co.uk
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Chris Wilson authored
As we keep an rbtree of available holes sorted by their size, we can very easily determine if there is any hole large enough that might satisfy the allocation request. This helps when dealing with a highly fragmented address space and a request for a search by address. To cache the largest size, we convert into the cached rbtree variant which tracks the leftmost node for us. However, currently we sorted into ascending size order so the leftmost node is the smallest, and so to make it the largest hole we need to invert our sorting. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180521082131.13744-1-chris@chris-wilson.co.uk
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Souptick Joarder authored
Use new return type vm_fault_t for fault handler. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180416150232.GA26745@jordon-HP-15-Notebook-PC
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- 23 May, 2018 3 commits
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Souptick Joarder authored
Use new return type vm_fault_t for fault and huge_fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. Commit 1c8f4220 ("mm: change return type to vm_fault_t") Previously vm_insert_page() returns err which driver mapped into VM_FAULT_* type. The new function vmf_ insert_page() will replace this inefficiency by returning VM_FAULT_* type. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180425045922.GA21590@jordon-HP-15-Notebook-PC
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Laura Abbott authored
There's an ongoing effort to remove VLAs[1] from the kernel to eventually turn on -Wvla. The vla in reg_write_range is based on the length of data passed. The one use of a non-constant size for this range is bounded by the size buffer passed to hdmi_infoframe_pack which is a fixed size. Switch to this upper bound. [1] https://lkml.org/lkml/2018/3/7/621Signed-off-by: Laura Abbott <labbott@redhat.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180411010330.17866-1-labbott@redhat.com
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Laura Abbott authored
There's an ongoing effort to remove VLAs[1] from the kernel to eventually turn on -Wvla. Switch to a reasonable upper bound for the VLAs in the gma500 driver. [1] https://lkml.org/lkml/2018/3/7/621Signed-off-by: Laura Abbott <labbott@redhat.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180409210647.3718-1-labbott@redhat.com
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