- 07 Jul, 2022 3 commits
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Jianglei Nie authored
nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code back to the caller. On failures, ttm will call nouveau_bo_del_ttm() and free the memory.Thus, when nouveau_bo_init() returns an error, the gem object has already been released. Then the call to nouveau_bo_ref() will use the freed "nvbo->bo" and lead to a use-after-free bug. We should delete the call to nouveau_bo_ref() to avoid the use-after-free. Signed-off-by:
Jianglei Nie <niejianglei2021@163.com> Reviewed-by:
Lyude Paul <lyude@redhat.com> Signed-off-by:
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Alvin Šipraga authored
cec_unregister_adapter() assumes that the underlying adapter ops are callable. For example, if the CEC adapter currently has a valid physical address, then the unregistration procedure will invalidate the physical address by setting it to f.f.f.f. Whence the following kernel oops observed after removing the adv7511 module: Unable to handle kernel execution of user memory at virtual address 0000000000000000 Internal error: Oops: 86000004 [#1] PREEMPT_RT SMP Call trace: 0x0 adv7511_cec_adap_log_addr+0x1ac/0x1c8 [adv7511] cec_adap_unconfigure+0x44/0x90 [cec] __cec_s_phys_addr.part.0+0x68/0x230 [cec] __cec_s_phys_addr+0x40/0x50 [cec] cec_unregister_adapter+0xb4/0x118 [cec] adv7511_remove+0x60/0x90 [adv7511] i2c_device_remove+0x34/0xe0 device_release_driver_internal+0x114/0x1f0 driver_detach+0x54/0xe0 bus_remove_driver+0x60/0xd8 driver_unregister+0x34/0x60 i2c_del_driver+0x2c/0x68 adv7511_exit+0x1c/0x67c [adv7511] __arm64_sys_delete_module+0x154/0x288 invoke_syscall+0x48/0x100 el0_svc_common.constprop.0+0x48/0xe8 do_el0_svc+0x28/0x88 el0_svc+0x1c/0x50 el0t_64_sync_handler+0xa8/0xb0 el0t_64_sync+0x15c/0x160 Code: bad PC value ---[ end trace 0000000000000000 ]--- Protect against this scenario by unregistering i2c_cec after unregistering the CEC adapter. Duly disable the CEC clock afterwards too. Fixes: 3b1b9750 ("drm: adv7511/33: add HDMI CEC support") Signed-off-by:Alvin Šipraga <alsi@bang-olufsen.dk> Reviewed-by:
Robert Foss <robert.foss@linaro.org> Signed-off-by:
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Alvin Šipraga authored
The ADV7511_REG_CEC_CTRL = 0xE2 register is part of the main register map - not the CEC register map. As such, we shouldn't apply an offset to the register address. Doing so will cause us to address a bogus register for chips with a CEC register map offset (e.g. ADV7533). Fixes: 3b1b9750 ("drm: adv7511/33: add HDMI CEC support") Signed-off-by:
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- 06 Jul, 2022 9 commits
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Randy Dunlap authored
Add a header file to prevent build errors: ../drivers/gpu/drm/xlnx/zynqmp_dp.c: In function ‘zynqmp_dp_write’: ../drivers/gpu/drm/xlnx/zynqmp_dp.c:335:9: error: implicit declaration of function ‘writel’ [-Werror=implicit-function-declaration] 335 | writel(val, dp->iomem + offset); ../drivers/gpu/drm/xlnx/zynqmp_dp.c: In function ‘zynqmp_dp_read’: ../drivers/gpu/drm/xlnx/zynqmp_dp.c:340:16: error: implicit declaration of function ‘readl’ [-Werror=implicit-function-declaration] 340 | return readl(dp->iomem + offset); Fixes: a204f974 ("drm: Remove linux/i2c.h from drm_crtc.h") Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: Hyun Kwon <hyun.kwon@xilinx.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Michal Simek <michal.simek@xilinx.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220706184224.29116-1-rdunlap@infradead.org
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Sam Ravnborg authored
Move away from the deprecated enable/disable operations in drm_bridge_funcs and enable atomic use. v3: - Drop use of DRM_BRIDGE_STATE_OPS v2: - fix build (kernel test robot <lkp@intel.com>) Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Cc: Kieran Bingham <kieran.bingham@ideasonboard.com> Cc: Douglas Anderson <dianders@chromium.org> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Robert Foss <robert.foss@linaro.org> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by:
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Liu Ying authored
When LVDS dual link is used, we have to enable the LDB_CTRL_SPLIT_MODE bit. Fixes: 463db5c2 ("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge") Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Robert Foss <robert.foss@linaro.org> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Marek Vasut <marex@denx.de> Cc: NXP Linux Team <linux-imx@nxp.com> Signed-off-by:
Liu Ying <victor.liu@nxp.com> Reviewed-by:
Marek Vasut <marex@denx.de> Signed-off-by:
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Liu Ying authored
With LVDS dual link, up to 160MHz mode clock rate is supported. With LVDS single link, up to 80MHz mode clock rate is supported. Fix mode clock rate validation by swapping the maximum mode clock rates of the two link modes. Fixes: 463db5c2 ("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge") Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Robert Foss <robert.foss@linaro.org> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Marek Vasut <marex@denx.de> Cc: NXP Linux Team <linux-imx@nxp.com> Signed-off-by:
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Marek Vasut authored
The DE inversion is implemented in LCDIFv3 driver and is no longer needed in the LDB bridge which does not invert the DE signal. Drop the inversion. Fixes: 463db5c2 ("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge") Signed-off-by:
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Hsin-Yi Wang authored
Move hpd polling check into wait_hpd_asserted() callback. For the cases that aux transfer function wasn't used, do hpd polling check after pm runtime resume, which will power on the bridge. Signed-off-by:
Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by:
Xin Ji <xji@analogixsemi.com> Signed-off-by:
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Hsin-Yi Wang authored
Move devm_of_dp_aux_populate_ep_devices() after pm runtime and i2c setup to avoid NULL pointer crash. edp-panel probe (generic_edp_panel_probe) calls pm_runtime_get_sync() to read EDID. At this time, bridge should have pm runtime enabled and i2c clients ready. Fixes: adca62ec ("drm/bridge: anx7625: Support reading edid through aux channel") Signed-off-by:
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Hsin-Yi Wang authored
There's no need to check for IRQ or disable it in suspend. Use pm_runtime_force_suspend(resume) to make sure anx7625 is powered off correctly. Make the system suspend/resume and pm runtime suspend/resume more consistent. Signed-off-by:
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Hsin-Yi Wang authored
Simplify the resource management. Signed-off-by:
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- 05 Jul, 2022 4 commits
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Ville Syrjälä authored
drm_crtc.h has no need for linux/i2c.h, so don't include it. Avoids useless rebuilds of the entire universe when touching linux/i2c.h. Quite a few placs do currently depend on linux/i2c.h without actually including it directly. All of those need to be fixed up. v2: imx and mcde need linux/io.h for readl()/etc. Acked-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
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Ville Syrjälä authored
drm_crtc.h has no need for linux/media-bus-format.h, so don't include it. Avoids useless rebuilds of the entire universe when touching linux/media-bus-format.h. Quite a few placs do currently depend on linux/media-bus-format.h without actually including it directly. All of those need to be fixed up. v2: Deal with ingenic as well v3: Fix up mxsfb and remaining parts of imx Acked-by:
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Ville Syrjälä authored
drm_crtc.h has no need for linux/fb.h, so don't include it. Avoids useless rebuilds of the entire universe when touching linux/fb.h. Quite a few placs do currently depend on linux/fb.h or other headers pulled in by it without actually including any of it directly. All of those need to be fixed up. v2: Split the vmwgfx change out Acked-by:
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Ville Syrjälä authored
Stop using the 'TRUE' define. This ultimately gets defined by acpi/actypes.h that gets included here via a convoluted chain of other headers. drm_crtc.h is part of that chain, and I'm trying to eliminate all unnecessary includes from it to avoid pointless rebuilds. v2: Split out from the bigger patch Cc: Zack Rusin <zackr@vmware.com> Cc: VMware Graphics Reviewers <linux-graphics-maintainer@vmware.com> Acked-by:
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- 04 Jul, 2022 2 commits
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Hangyu Hua authored
The next call to sii8620_burst_get_tx_buf will result in off-by-one When ctx->burst.tx_count + size == ARRAY_SIZE(ctx->burst.tx_buf). The same thing happens in sii8620_burst_get_rx_buf. This patch also change tx_count and tx_buf to rx_count and rx_buf in sii8620_burst_get_rx_buf. It is unreasonable to check tx_buf's size and use rx_buf. Fixes: e19e9c69 ("drm/bridge/sii8620: add support for burst eMSC transmissions") Signed-off-by:
Hangyu Hua <hbh25y@gmail.com> Reviewed-by:
Andrzej Hajda <andrzej.hajda@intel.com> Signed-off-by:
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Paul Cercueil authored
Until now, when running at the maximum resolution of 1280x720 at 32bpp on the JZ4770 SoC the output was garbled, the X/Y position of the top-left corner of the framebuffer warping to a random position with the whole image being offset accordingly, every time a new frame was being submitted. This problem can be eliminated by using a bigger burst size for the DMA. Set in each soc_info structure the maximum burst size supported by the corresponding SoC, and use it in the driver. Set the new value using regmap_update_bits() instead of regmap_set_bits(), since we do want to override the old value of the burst size. (Note that regmap_set_bits() wasn't really valid before for the same reason, but it never seemed to be a problem). Cc: <stable@vger.kernel.org> Fixes: 90b86fcc ("DRM: Add KMS driver for the Ingenic JZ47xx SoCs") Signed-off-by:
Paul Cercueil <paul@crapouillou.net> Link: https://patchwork.freedesktop.org/patch/msgid/20220702230727.66704-1-paul@crapouillou.netAcked-by:
Christophe Branchereau <cbranchereau@gmail.com>
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- 03 Jul, 2022 5 commits
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Marco Felsch authored
Add support for the 1024x600 LVDS panel. Signed-off-by:
Marco Felsch <m.felsch@pengutronix.de> Signed-off-by:
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Marco Felsch authored
Add binding for the Emerging Display Technology ETML0700Y5DHA panel. It is a 7" WSVGA (1024x600) TFT LCD panel with: - LVDS data interface, - backlight and - capacitive touch. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Svyatoslav Ryhel authored
Add definition of the HannStar HSD101PWW2 Rev0-A00/A01 LCD SuperIPS+ HD panel. Signed-off-by:
Svyatoslav Ryhel <clamor95@gmail.com> Signed-off-by:
Dmitry Osipenko <digetx@gmail.com> Signed-off-by:
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Svyatoslav Ryhel authored
Add HannStar HSD101PWW2 10.1" WXGA (1280x800) TFT-LCD LVDS panel to the list of compatibles. Acked-by:
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Anton Bambura authored
LQ101R1SX03 is compatible with LQ101R1SX01 from software perspective, document it. The LQ101R1SX03 is a newer revision of LQ101R1SX01, it has minor differences in hardware pins in comparison to the older version. The newer version of the panel can be found on Android tablets, like ASUS TF701T. Reviewed-by:
Anton Bambura <jenneron@protonmail.com> Signed-off-by:
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- 02 Jul, 2022 2 commits
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Christophe JAILLET authored
Should component_add() fail, we should call analogix_dp_remove() in the error handling path, as already done in the remove function. Fixes: 152cce00 ("drm/bridge: analogix_dp: Split bind() into probe() and real bind()") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/b719d9061bb97eb85145fbd3c5e63f4549f2e13e.1655572071.git.christophe.jaillet@wanadoo.fr
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Brian Norris authored
It's possible for users to try to duplicate the CRTC state even when the state doesn't exist. drm_atomic_helper_crtc_duplicate_state() (and other users of __drm_atomic_helper_crtc_duplicate_state()) already guard this with a WARN_ON() instead of crashing, so let's do that here too. Fixes: 4e257d9e ("drm/rockchip: get rid of rockchip_drm_crtc_mode_config") Signed-off-by:
Brian Norris <briannorris@chromium.org> Reviewed-by:
Sean Paul <seanpaul@chromium.org> Reviewed-by:
Douglas Anderson <dianders@chromium.org> Signed-off-by:
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- 01 Jul, 2022 1 commit
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Geert Uytterhoeven authored
The various Freescale i.MX8 display bridges are only present on Freescale i.MX8 SoCs. Hence add a dependency on ARCH_MXC, to prevent asking the user about these drivers when configuring a kernel without i.MX SoC support. Fixes: e60c4354 ("drm/bridge: imx: Add LDB support for i.MX8qm") Fixes: 3818715f ("drm/bridge: imx: Add LDB support for i.MX8qxp") Fixes: 96988a52 ("drm/bridge: imx: Add i.MX8qxp pixel link to DPI support") Fixes: 1ec17c26 ("drm/bridge: imx: Add i.MX8qm/qxp display pixel link support") Fixes: 93e163a9 ("drm/bridge: imx: Add i.MX8qm/qxp pixel combiner support") Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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- 30 Jun, 2022 14 commits
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Ville Syrjälä authored
drm_crtc.h is including several entirely unnecessary headers, and also contains unused forward declarations. Remove it all. Signed-off-by:
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Jani Nikula authored
Take the HF-EEODB extension count override into account. Signed-off-by:
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Jani Nikula authored
HDMI 2.1 section 10.3.6 defines an HDMI Forum EDID Extension Override Data Block, which may contain a different extension count than the base block claims. Add support for reading more EDID data if available. The extra blocks aren't parsed yet, though. Hard-coding the EEODB parsing instead of using the iterators we have is a bit of a bummer, but we have to be able to do this on a partially allocated EDID while reading it. v2: - Check for CEA Data Block Collection size (Ville) - Amend commit message and comment about hard-coded parsing Signed-off-by:
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Jani Nikula authored
Rewrite edid_filter_invalid_blocks() to filter invalid blocks in-place. The main motivation is to not rely on passed in information on invalid block count or the allocation size, which will be helpful in follow-up work on HF-EEODB. Signed-off-by:
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Jani Nikula authored
Unfortunately, there are still plenty of interfaces around that require a struct edid pointer, and it's impossible to change them all at once. Add an accessor to the raw EDID data to help the transition. While there are no such cases now, be defensive against raw EDID extension count indicating bigger EDID than is actually allocated. Signed-off-by:
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Jani Nikula authored
Add a helper function to be used as the "default" .get_modes() hook. This also works as an example of what the driver .get_modes() hooks are supposed to do regarding the new drm_edid_read*() and drm_edid_connector_update() calls. Signed-off-by:
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Jani Nikula authored
Add a new function drm_edid_connector_update() to replace the combination of calls drm_connector_update_edid_property() and drm_add_edid_modes(). Usually they are called in the drivers in this order, however the former needs information from the latter. Since the new drm_edid_read*() functions no longer call the connector updates directly, and the read and update are separated, we'll need this new function for the connector update. This is all in drm_edid.c simply to keep struct drm_edid opaque. v2: - Share code with drm_connector_update_edid_property() (Ville) - Add comment about override EDID handling Signed-off-by:
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Jani Nikula authored
Add functions drm_edid_override_set() and drm_edid_override_reset() to support "edid_override" connector debugfs, and to hide the details about it in drm_edid.c. No functional changes at this time. Also note in the connector.override_edid flag kernel-doc that this is only supposed to be modified by the code doing debugfs EDID override handling. Currently, it is still being modified by amdgpu in create_eml_sink() and handle_edid_mgmt() for reasons unknown. This was added in commit 4562236b ("drm/amd/dc: Add dc display driver (v2)") and later moved to amdgpu_dm.c in commit e7b07cee ("drm/amd/display: Merge amdgpu_dm_types and amdgpu_dm"). Signed-off-by:
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Jani Nikula authored
Bail out on all errors, debug log all errors, and convert to drm device based debug logging. Signed-off-by:
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Jani Nikula authored
Make drm_connector_update_edid_property() a thin wrapper around a struct drm_edid based version of the same. This lets us remove the legacy drm_update_tile_info() and drm_add_display_info() functions altogether. Signed-off-by:
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Jani Nikula authored
The function needs access to drm_edid.c internals more than drm_connector.c. We can make drm_reset_display_info(), drm_add_display_info() and drm_update_tile_info() static. There will be more benefits with follow-up struct drm_edid refactoring. Signed-off-by:
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Tom Rix authored
sparse reports drivers/gpu/drm/vc4/vc4_drv.c:270:27: warning: symbol 'vc4_dma_range_matches' was not declared. Should it be static? vc4_dma_range_matches is only used in vc4_drv.c, so it's storage class specifier should be static. Fixes: da8e393e ("drm/vc4: drv: Adopt the dma configuration from the HVS or V3D component") Signed-off-by:
Tom Rix <trix@redhat.com> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220629200101.498138-1-trix@redhat.com
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Lucas De Marchi authored
Like was done for read, provide the equivalent for write. Even if current users are not in the hot path, this should future-proof it. v2: - Remove default from _Generic() - callers wanting to write more than u64 should use iosys_map_memcpy_to() - Add WRITE_ONCE() cases dereferencing the pointer when using system memory v3: - Fix precedence issue when casting inside WRITE_ONCE(). By not using () around vaddr__ the offset was not part of the cast, but rather added to it, producing a wrong address - Remove compiletime_assert() as WRITE_ONCE() already contains it Signed-off-by:Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Reviewed-by: Christian König <christian.koenig@amd.com> # v1 Reviewed-by:
Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220628191016.3899428-2-lucas.demarchi@intel.com
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Lucas De Marchi authored
Instead of always falling back to memcpy_fromio() for any size, prefer using read{b,w,l}(). When reading struct members it's common to read individual integer variables individually. Going through memcpy_fromio() for each of them poses a high penalty. Employ a similar trick as __seqprop() by using _Generic() to generate only the specific call based on a type-compatible variable. For a pariticular i915 workload producing GPU context switches, __get_engine_usage_record() is particularly hot since the engine usage is read from device local memory with dgfx, possibly multiple times since it's racy. Test execution time for this test shows a ~12.5% improvement with DG2: Before: nrepeats = 1000; min = 7.63243e+06; max = 1.01817e+07; median = 9.52548e+06; var = 526149; After: nrepeats = 1000; min = 7.03402e+06; max = 8.8832e+06; median = 8.33955e+06; var = 333113; Other things attempted that didn't prove very useful: 1) Change the _Generic() on x86 to just dereference the memory address 2) Change __get_engine_usage_record() to do just 1 read per loop, comparing with the previous value read 3) Change __get_engine_usage_record() to access the fields directly as it was before the conversion to iosys-map (3) did gave a small improvement (~3%), but doesn't seem to scale well to other similar cases in the driver. Additional test by Chris Wilson using gem_create from igt with some changes to track object creation time. This happens to accidentally stress this code path: Pre iosys_map conversion of engine busyness: lmem0: Creating 262144 4KiB objects took 59274.2ms Unpatched: lmem0: Creating 262144 4KiB objects took 108830.2ms With readl (this patch): lmem0: Creating 262144 4KiB objects took 61348.6ms s/readl/READ_ONCE/ lmem0: Creating 262144 4KiB objects took 61333.2ms So we do take a little bit more time than before the conversion, but that is due to other factors: bringing the READ_ONCE back would be as good as just doing this conversion. v2: - Remove default from _Generic() - callers wanting to read more than u64 should use iosys_map_memcpy_from() - Add READ_ONCE() cases dereferencing the pointer when using system memory v3: - Fix precedence issue when casting inside READ_ONCE(). By not using () around vaddr__ the offset was not part of the cast, but rather added to it, producing a wrong address - Remove compiletime_assert() as READ_ONCE() already contains it Signed-off-by:
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