- 20 May, 2021 8 commits
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Andrey Grodzovsky authored
This should prevent writing to memory or IO ranges possibly already allocated for other uses after our device is removed. v5: Protect more places wher memcopy_to/form_io takes place Protect IB submissions v6: Switch to !drm_dev_enter instead of scoping entire code with brackets. v7: Drop guard of HW ring commands emission protection since they are in GART and not in MMIO. Signed-off-by:
Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210512142648.666476-10-andrey.grodzovsky@amd.com
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Andrey Grodzovsky authored
This allows to remove explicit creation and destruction of those attrs and by this avoids warnings on device finalizing post physical device extraction. v5: Use newly added pci_driver.dev_groups directly Signed-off-by:
Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210512142648.666476-9-andrey.grodzovsky@amd.com
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Andrey Grodzovsky authored
This helps converting PCI drivers sysfs attributes to static. Analogous to' commit b71b283e ("USB: add support for dev_groups to struct usb_driver")' Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by:
Bjorn Helgaas <bhelgaas@google.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210512142648.666476-8-andrey.grodzovsky@amd.com
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Andrey Grodzovsky authored
On device removal reroute all CPU mappings to dummy page per drm_file instance or imported GEM object. v4: Update for modified ttm_bo_vm_dummy_page Signed-off-by:
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Andrey Grodzovsky authored
Problem: Handle all DMA IOMMU group related dependencies before the group is removed. Those manifest themself in that when IOMMU enabled DMA map/unmap is dependent on the presence of IOMMU group the device belongs to but, this group is released once the device is removed from PCI topology. Fix: Expedite all such unmap operations to pci remove driver callback. v5: Drop IOMMU notifier and switch to lockless call to ttm_tt_unpopulate v6: Drop the BO unamp list v7: Drop amdgpu_gart_fini In amdgpu_ih_ring_fini do uncinditional check (!ih->ring) to avoid freeing uniniitalized rings. Call amdgpu_ih_ring_fini unconditionally. v8: Add deatiled explanation Signed-off-by:
Felix Kuehling <Felix.Kuehling@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210517143851.475058-1-andrey.grodzovsky@amd.com
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Andrey Grodzovsky authored
Use it to call disply code dependent on device->drv_data before it's set to NULL on device unplug v5: Move HW finilization into this callback to prevent MMIO accesses post cpi remove. v7: Split kfd suspend from device exit to expdite HW related stuff to amdgpu_pci_remove v8: Squash previous KFD commit into this commit to avoid compile break. Signed-off-by:
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Andrey Grodzovsky authored
Some of the stuff in amdgpu_device_fini such as HW interrupts disable and pending fences finilization must be done right away on pci_remove while most of the stuff which relates to finilizing and releasing driver data structures can be kept until drm_driver.release hook is called, i.e. when the last device reference is dropped. v4: Change functions prefix early->hw and late->sw Signed-off-by:
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Andrey Grodzovsky authored
On device removal reroute all CPU mappings to dummy page. v3: Remove loop to find DRM file and instead access it by vma->vm_file->private_data. Move dummy page installation into a separate function. v4: Map the entire BOs VA space into on demand allocated dummy page on the first fault for that BO. v5: Remove duplicate return. v6: Polish ttm_bo_vm_dummy_page, remove superfluous code. Signed-off-by:
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- 19 May, 2021 1 commit
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Mauro Carvalho Chehab authored
There are some places at drm that ended receiving a REPLACEMENT CHARACTER U+fffd ('�'), probably because of some bad charset conversion. Fix them by using what it seems to be the proper character. Acked-by:Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by:
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- 18 May, 2021 11 commits
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Simon Ser authored
Let the user know what went wrong in drm_gem_fb_init_with_funcs failure paths. v2: use proper format specifier for size_t (kernel test robot) Signed-off-by:
Simon Ser <contact@emersion.fr> Reviewed-by:
Michel Dänzer <mdaenzer@redhat.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZS4eX0PtTuNvHezILcTWeWINOkRyMS4krXND3cIE@cp4-web-032.plabs.ch
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Enric Balletbo i Serra authored
This driver adds support for the ChromeOS EC ANX7688 HDMI to DP converter For our use case, the only reason the Linux kernel driver is necessary is to reject resolutions that require more bandwidth than what is available on the DP side. DP bandwidth and lane count are reported by the bridge via 2 registers and, as far as we know, only chips that have a firmware version greater than 0.85 support these two registers. Signed-off-by:
Nicolas Boichat <drinkcat@chromium.org> Signed-off-by:
Hsin-Yi Wang <hsinyi@chromium.org> [The driver is OF only so should depends on CONFIG_OF] Reported-by:
kbuild test robot <lkp@intel.com> Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> [convert to i2c driver, rename to cros_ec_anx7688, add err checks] Signed-off-by:
Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210518141927.24795-3-dafna.hirschfeld@collabora.com
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Dafna Hirschfeld authored
ChromeOS EC ANX7688 is a display bridge that converts HDMI 2.0 to DisplayPort 1.3 Ultra-HDi (4096x2160p60). It is an Analogix ANX7688 chip which is connected to and operated by the ChromeOS Embedded Controller (See google,cros-ec.yaml). It is accessed using I2C tunneling through the EC and therefore its node should be a child of an EC I2C tunnel node (See google,cros-ec-i2c-tunnel.yaml). ChromOS EC ANX7688 is found on Acer Chromebook R13 (elm) Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Dan Carpenter authored
The ti_sn_aux_transfer() function returns ssize_t (signed long). It's supposed to return negative error codes or the number of bytes transferred. The "ret" variable is int and the "len" variable is unsigned int. The problem is that with a ternary like this, the negative int is first type promoted to unsigned int to match "len" at this point it is a high positive value. Then when it is type promoted to ssize_t (s64) it remains a high positive value instead of sign extending and becoming a negative again. Fix this by removing the ternary. Fixes: b137406d ("drm/bridge: ti-sn65dsi86: If refclk, DP AUX can happen w/out pre-enable") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Pi-Hsun Shih authored
Add suspend / resume hooks for anx7625 driver, that power off the device on suspend and power on the device on resume if it was previously powered. Signed-off-by:
Pi-Hsun Shih <pihsun@chromium.org> Reviewed-by:
Tzung-Bi Shih <tzungbi@google.com> Signed-off-by:
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Pi-Hsun Shih authored
The driver originally use an atomic_t for keep track of the power status, which makes the driver more complicated than needed, and has some race condition as it's possible to have the power on and power off sequence going at the same time. This patch remove the usage of the atomic_t power_status, and use the kernel runtime power management framework instead. Signed-off-by:
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Dan Carpenter authored
In the original code if the "ctx = devm_kzalloc()" allocation failed then we should have called of_node_put(ep); before returning. It's actually a bit easier to do the allocation first before assigning ep = of_graph_get_endpoint_by_regs(). Fixes: 988156dc ("drm: bridge: add it66121 driver") Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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Dan Carpenter authored
This code is passing the wrong variable to PTR_ERR() so it doesn't return the correct error code. Fixes: 988156dc ("drm: bridge: add it66121 driver") Signed-off-by:
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Xie Yongji authored
We should call virtio_gpu_deinit() to free virtqueues when drm_dev_register() failed. Signed-off-by:
Xie Yongji <xieyongji@bytedance.com> Link: http://patchwork.freedesktop.org/patch/msgid/20210517084913.403-3-xieyongji@bytedance.comSigned-off-by:
Gerd Hoffmann <kraxel@redhat.com>
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Xie Yongji authored
The virtio_gpu_init() will free vgdev and vgdev->vbufs on failure. But such failure will be caught by virtio_gpu_probe() and then virtio_gpu_release() will be called to do some cleanup which will free vgdev and vgdev->vbufs again. So let's set dev->dev_private to NULL to avoid double free. Signed-off-by:
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Xie Yongji authored
The dev->dev_private might not be allocated if virtio_gpu_pci_quirk() or virtio_gpu_init() failed. In this case, we should avoid the cleanup in virtio_gpu_release(). Signed-off-by:
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- 17 May, 2021 8 commits
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Thomas Zimmermann authored
The functionality is only implemented for legacy drivers. Mark the ioctl as legacy and move the code behind CONFIG_DRM_LEGACY. If legacy drivers are disabled, the ioctl call now returns -EINVAL instead of -EOPNOTSUPP. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210516195135.3755-1-tzimmermann@suse.de
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Thomas Zimmermann authored
The legacy PCI init code sets the drvdata for drivers with MODESET flag, but none of the old UMS drivers sets the flag. Remove the branch. Signed-off-by:
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Thomas Zimmermann authored
DRM leases do not use DRM legacy code. Remove the rsp include statement. Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210516185937.5644-4-tzimmermann@suse.de
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Thomas Zimmermann authored
Nouveau does not use DRM legacy code. Remove the rsp. include statement. Signed-off-by:
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Thomas Zimmermann authored
i915 does not use DRM legacy code. Remove the rsp include statements. Signed-off-by:
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Paul Cercueil authored
When using a 24-bit panel on a 8-bit serial bus, the pixel clock requested by the panel has to be multiplied by 3, since the subpixels are shifted sequentially. The code (in ingenic_drm_encoder_atomic_check) already computed crtc_state->adjusted_mode->crtc_clock accordingly, but clk_set_rate() used crtc_state->adjusted_mode->clock instead. Fixes: 28ab7d35 ("drm/ingenic: Properly compute timings when using a 3x8-bit panel") Cc: stable@vger.kernel.org # v5.10 Signed-off-by:
Paul Cercueil <paul@crapouillou.net> Tested-by: H. Nikolaus Schaller <hns@goldelico.com> # CI20/jz4780 (HDMI) and Alpha400/jz4730 (LCD) Acked-by:
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Lukas Bulwahn authored
Commit 11e8f5fd ("drm: Add simpledrm driver") adds the file ./drivers/gpu/drm/tiny/simpledrm.c, but refers to the file ./drivers/gpu/drm/tiny/simplekms.c with the new MAINTAINERS section DRM DRIVER FOR SIMPLE FRAMEBUFFERS. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains: warning: no file matches F: drivers/gpu/drm/tiny/simplekms.c Repair the file entry by referring to the right location. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by:
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Zou Wei authored
This patch adds missing MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this driver when it is built as an external module. Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Zou Wei <zou_wei@huawei.com> Reviewed-by:
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- 16 May, 2021 1 commit
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Yang Yingliang authored
Fix the following make W=1 kernel build warning: drivers/gpu/drm/drm_context.c:136: warning: expecting prototype for drm_ctxbitmap_flush(). Prototype was for drm_legacy_ctxbitmap_flush() instead Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Signed-off-by:
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- 15 May, 2021 1 commit
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Dan Carpenter authored
The drm_format_info() function returns NULL if the format is unsupported, but the simplefb_get_validated_format() is expected to return error pointers. If we propagate the NULL return then it will lead to a NULL dereference in the callers. Swap the NULL and trade it in for an ERR_PTR(-EINVAL). Fixes: 11e8f5fd ("drm: Add simpledrm driver") Signed-off-by:
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- 14 May, 2021 6 commits
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Qiheng Lin authored
In case of error, the function devm_ioremap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. After that, the error code -ENOMEM should be returned. Reported-by:
Qiheng Lin <linqiheng@huawei.com> Signed-off-by:
Zack Rusin <zackr@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210514082812.1697-1-linqiheng@huawei.com
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Colin Ian King authored
The allocation of fifo is lacking an allocation failure check, so fix this by adding one. In the case where fifo->static_buffer fails to be allocated the error return path neglects to kfree the fifo object. Fix this by adding in the missing kfree. Kudos to Dan Carpenter for spotting the missing kzalloc failure check. Addresses-Coverity: ("Resource leak") Fixes: 2cd80dbd ("drm/vmwgfx: Add basic support for SVGA3") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Nicolas Boichat authored
Add support for MT8183's G72 Bifrost. Signed-off-by:
Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by:
Steven Price <steven.price@arm.com> Signed-off-by:
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Nicolas Boichat authored
GPUs with more than a single regulator (e.g. G72 on MT8183) will require platform-specific handling for devfreq, for 2 reasons: 1. The opp core (drivers/opp/core.c:_generic_set_opp_regulator) does not support multiple regulators, so we'll need custom handlers. 2. Generally, platforms with 2 regulators have platform-specific constraints on how the voltages should be set (e.g. minimum/maximum voltage difference between them), so we should not just create generic handlers that simply change the voltages without taking care of those constraints. Disable devfreq for now on those GPUs. Signed-off-by: -
Nicolas Boichat authored
Define a compatible string for the Mali Bifrost GPU found in Mediatek's MT8183 SoCs. Signed-off-by:
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Stephen Rothwell authored
Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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- 13 May, 2021 4 commits
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David M Nieto authored
The proper metric for fence utilization over several contexts is an harmonic mean, but such calculation is prohibitive in kernel space, so the code approximates it. Because the approximation diverges when one context has a very small ratio compared with the other context, this change filter out ratios smaller that 0.01% v2: make the fence calculation static and initialize variables within that function v3: Fix warnings (Alex) Reviewed-by:
David M Nieto <david.nieto@amd.com> Signed-off-by:
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David M Nieto authored
Free the resources if the fence needs to be ignored during the ratio calculation Reviewed-by:
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Colin Ian King authored
There are two occurrances where objects are being free'd via a put call and yet they are being referenced after this. Fix these by adding in the missing continue statement so that the put on the end of the loop is skipped over. Signed-off-by:
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Zou Wei authored
Add the missing unlock before return from function devm_aperture_acquire() in the error handling case. Signed-off-by:
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