- 05 Nov, 2022 3 commits
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Thomas Zimmermann authored
Don't set struct drm_driver.lastclose. It's used to restore the fbdev console. But as mcde uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the call to drm_client_dev_restore() in drm_lastclose(). Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-3-tzimmermann@suse.de
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Thomas Zimmermann authored
Don't set struct drm_driver.lastclose. It's used to restore the fbdev console. But as komeda uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the call to drm_client_dev_restore() in drm_lastclose(). Signed-off-by:
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Thomas Zimmermann authored
Backmerging drm/drm-next to get the latest changes in the xlnx driver. Signed-off-by:
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- 04 Nov, 2022 5 commits
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Thomas Zimmermann authored
Cast error pointers when returning them as void __iomem *. Fixes a number of Sparse warnings, such as the ones shown below. ../drivers/gpu/drm/tiny/ofdrm.c:439:31: warning: incorrect type in return expression (different address spaces) ../drivers/gpu/drm/tiny/ofdrm.c:439:31: expected void [noderef] __iomem * ../drivers/gpu/drm/tiny/ofdrm.c:439:31: got void * ../drivers/gpu/drm/tiny/ofdrm.c:442:31: warning: incorrect type in return expression (different address spaces) ../drivers/gpu/drm/tiny/ofdrm.c:442:31: expected void [noderef] __iomem * ../drivers/gpu/drm/tiny/ofdrm.c:442:31: got void * See [1] for the bug report. v3: * use IOMEM_ERR_PTR() (Javier) Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
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Thomas Zimmermann authored
Properties of 32-bit integers are returned from the OF device tree as type __be32. Convert PCI vendor and device IDs from __be32 to host endianness before comparing them to constants. All relevant machines are old, big-endian Macintosh systems; hence the bug never happened in practice. Fixes sparse warnings shown below. drivers/gpu/drm/tiny/ofdrm.c:237:17: warning: restricted __be32 degrades to integer drivers/gpu/drm/tiny/ofdrm.c:238:18: warning: restricted __be32 degrades to integer drivers/gpu/drm/tiny/ofdrm.c:238:54: warning: restricted __be32 degrades to integer See [1] for the bug report. v2: * convert endianness (Alex) Reported-by:
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Yuan Can authored
A problem about modprobe ingenic-drm failed is triggered with the following log given: [ 303.561088] Error: Driver 'ingenic-ipu' is already registered, aborting... modprobe: ERROR: could not insert 'ingenic_drm': Device or resource busy The reason is that ingenic_drm_init() returns platform_driver_register() directly without checking its return value, if platform_driver_register() failed, it returns without unregistering ingenic_ipu_driver_ptr, resulting the ingenic-drm can never be installed later. A simple call graph is shown as below: ingenic_drm_init() platform_driver_register() # ingenic_ipu_driver_ptr are registered platform_driver_register() driver_register() bus_add_driver() priv = kzalloc(...) # OOM happened # return without unregister ingenic_ipu_driver_ptr Fixing this problem by checking the return value of platform_driver_register() and do platform_unregister_drivers() if error happened. Fixes: fc1acf31 ("drm/ingenic: Add support for the IPU") Signed-off-by:Yuan Can <yuancan@huawei.com> Cc: stable@vger.kernel.org Signed-off-by:
Paul Cercueil <paul@crapouillou.net> Link: https://patchwork.freedesktop.org/patch/msgid/20221104064512.8569-1-yuancan@huawei.com
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Dave Airlie authored
Merge tag 'drm-intel-gt-next-2022-11-03' of git://anongit.freedesktop.org/drm/drm-intel into drm-next Driver Changes: - Fix for #7306: [Arc A380] white flickering when using arc as a secondary gpu (Matt A) - Add Wa_18017747507 for DG2 (Wayne) - Avoid spurious WARN on DG1 due to incorrect cache_dirty flag (Niranjana, Matt A) - Corrections to CS timestamp support for Gen5 and earlier (Ville) - Fix a build error used with clang compiler on hwmon (GG) - Improvements to LMEM handling with RPM (Anshuman, Matt A) - Cleanups in dmabuf code (Mike) - Selftest improvements (Matt A) Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Y2N11wu175p6qeEN@jlahtine-mobl.ger.corp.intel.com
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git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
drm-misc-next for 6.2: UAPI Changes: Cross-subsystem Changes: - dma-buf: locking improvements - firmware: New API in the RaspberryPi firmware driver used by vc4 Core Changes: - client: Null pointer dereference fix in drm_client_buffer_delete() - mm/buddy: Add back random seed log - ttm: Convert ttm_resource to use size_t for its size, fix for an undefined behaviour Driver Changes: - bridge: - adv7511: use dev_err_probe - it6505: Fix return value check of pm_runtime_get_sync - panel: - sitronix: Fixes and clean-ups - lcdif: Increase DMA burst size - rockchip: runtime_pm improvements - vc4: Fix for a regression preventing the use of 4k @ 60Hz, and further HDMI rate constraints check. - vmwgfx: Cursor improvements Signed-off-by:
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- 03 Nov, 2022 15 commits
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Christian König authored
This now matches much better what this is doing. Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
Luben Tuikov <luben.tuikov@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221014084641.128280-14-christian.koenig@amd.com
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Christian König authored
This was buggy because when we had to wait for entities which were killed as well we would just deadlock. Instead move all the dependency handling into the callbacks so that will all happen asynchronously. Signed-off-by:
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Christian König authored
Not used any more. Signed-off-by:
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Christian König authored
Entirely remove the sync obj in the job. Signed-off-by:
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Christian König authored
Instead of putting that into the job sync object. Signed-off-by:
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Christian König authored
Instead of putting that into the job sync object. Signed-off-by:
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Christian König authored
This moves the memory allocation out of the critical code path. Signed-off-by:
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Christian König authored
Init the DRM scheduler base class while allocating the job. This makes the whole handling much more cleaner. v2: fix coding style Signed-off-by:
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Christian König authored
Instead return the fence directly. Avoids memory allocation to store the fence. v2: cleanup coding style as well Signed-off-by:
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Christian König authored
This is always the job anyway. Signed-off-by:
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Christian König authored
Use the new common scheduler functions to figure out what to wait for. Signed-off-by:
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Christian König authored
Add a new function to update job dependencies from a resv obj. Signed-off-by:
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Thomas Zimmermann authored
Add a dependency on CONFIG_MMU to ofdrm. The driver uses GEM SHMEM helpers, which require MMU support. A reported error message [1] is shown below. arm-linux-gnueabi-ld: drivers/gpu/drm/drm_gem_shmem_helper.o: in function `drm_gem_shmem_fault': >> drivers/gpu/drm/drm_gem_shmem_helper.c:562: undefined reference to `vmf_insert_pfn' Reported-by:
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Nathan Chancellor authored
With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed. A proposed warning in clang aims to catch these at compile time, which reveals: drivers/gpu/drm/meson/meson_encoder_cvbs.c:211:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_bridge *, const struct drm_display_info *, const struct drm_display_mode *)' with an expression of type 'int (struct drm_bridge *, const struct drm_display_info *, const struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types-strict] .mode_valid = meson_encoder_cvbs_mode_valid, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. ->mode_valid() in 'struct drm_bridge_funcs' expects a return type of 'enum drm_mode_status', not 'int'. Adjust the return type of meson_encoder_cvbs_mode_valid() to match the prototype's to resolve the warning and CFI failure. Link: https://github.com/ClangBuiltLinux/linux/issues/1750Reported-by:Sami Tolvanen <samitolvanen@google.com> Signed-off-by:
Nathan Chancellor <nathan@kernel.org> Reviewed-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221102155242.1927166-1-nathan@kernel.org
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Gwan-gyeong Mun authored
Use REG_FIELD_PREP() and a constant value for hwm_field_scale_and_write() If the first argument of FIELD_PREP() is not a compile-time constant value or unsigned long long type, this routine of the __BF_FIELD_CHECK() macro used internally by the FIELD_PREP() macro always returns false. BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \ __bf_cast_unsigned(_reg, ~0ull), \ _pfx "type of reg too small for mask"); \ And it returns a build error by the option among the clang compilation options. [-Werror,-Wtautological-constant-out-of-range-compare] Reported build error while using clang compiler: drivers/gpu/drm/i915/i915_hwmon.c:115:16: error: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((field_msk), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (field_msk)))' (aka 'unsigned int') is always false [-Werror,-Wtautological-constant-out-of-range-compare] bits_to_set = FIELD_PREP(field_msk, nval); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ ./include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ ./include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ v2: Use REG_FIELD_PREP() macro instead of FIELD_PREP() (Jani) Fixes: 99f55efb ("drm/i915/hwmon: Power PL1 limit and TDP setting") Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Cc: Anshuman Gupta <anshuman.gupta@intel.com> Cc: Andi Shyti <andi.shyti@linux.intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by:Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by:
Ashutosh Dixit <ashutosh.dixit@intel.com> Acked-by:
Jani Nikula <jani.nikula@intel.com> [Joonas: Wrapped commit message error line length to be more reasonable] Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221029044230.32128-1-gwan-gyeong.mun@intel.com
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- 02 Nov, 2022 11 commits
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Niranjana Vishwanathapura authored
Currently on DG1, which does not have LLC, we hit the below warning while rebinding an userptr invalidated object. WARNING: CPU: 4 PID: 13008 at drivers/gpu/drm/i915/gem/i915_gem_pages.c:34 __i915_gem_object_set_pages+0x296/0x2d0 [i915] ... RIP: 0010:__i915_gem_object_set_pages+0x296/0x2d0 [i915] ... Call Trace: <TASK> i915_gem_userptr_get_pages+0x175/0x1a0 [i915] ____i915_gem_object_get_pages+0x32/0xb0 [i915] i915_gem_object_userptr_submit_init+0x286/0x470 [i915] eb_lookup_vmas+0x2ff/0xcf0 [i915] ? __intel_wakeref_get_first+0x55/0xb0 [i915] i915_gem_do_execbuffer+0x785/0x21d0 [i915] i915_gem_execbuffer2_ioctl+0xe7/0x3d0 [i915] We shouldn't be setting the obj->cache_dirty for DGFX, fix it. Fixes: d70af579 ("drm/i915/shmem: ensure flush during swap-in on non-LLC") Suggested-by:
Matthew Auld <matthew.auld@intel.com> Reported-by:
Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by:
Nirmoy Das <nirmoy.das@intel.com> Reviewed-by:
Andi Shyti <andi.shyti@linux.intel.com> Signed-off-by:
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Arthur Grillo authored
As reported by Michał, the drm_mm and drm_buddy unit tests lost the printk with seed value after they were refactored into KUnit. Add kunit_info with seed value information to assure reproducibility. Reported-by:
Michał Winiarski <michal.winiarski@intel.com> Signed-off-by:
Arthur Grillo <arthurgrillo@riseup.net> Signed-off-by:
Maíra Canal <mairacanal@riseup.net> Link: https://patchwork.freedesktop.org/patch/msgid/20221028221755.340487-1-arthurgrillo@riseup.net
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Dmitry Osipenko authored
The drm_gem_vunmap() will crash with a NULL dereference if the passed object pointer is NULL. It wasn't a problem before we added the locking support to drm_gem_vunmap function because the mapping argument was always NULL together with the object. Make drm_client_buffer_delete() to check whether GEM is NULL before trying to unmap the GEM, it will happen on framebuffer creation error. Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221030154412.8320-3-dmitry.osipenko@collabora.com
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Dmitry Osipenko authored
The dma_buf_detach() locks attach->dmabuf->resv and then unlocks dmabuf->resv, which could be a two different locks from a static code checker perspective. In particular this triggers Smatch to report the "double unlock" error. Make the locking pointers consistent. Reported-by:
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Gaosheng Cui authored
Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in ./include/drm/ttm/ttm_tt.h:122:26 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c ttm_bo_move_memcpy+0x3b4/0x460 [ttm] bo_driver_move+0x32/0x40 [drm_vram_helper] ttm_bo_handle_move_mem+0x118/0x200 [ttm] ttm_bo_validate+0xfa/0x220 [ttm] drm_gem_vram_pin_locked+0x70/0x1b0 [drm_vram_helper] drm_gem_vram_pin+0x48/0xb0 [drm_vram_helper] drm_gem_vram_plane_helper_prepare_fb+0x53/0xe0 [drm_vram_helper] drm_gem_vram_simple_display_pipe_prepare_fb+0x26/0x30 [drm_vram_helper] drm_simple_kms_plane_prepare_fb+0x4d/0xe0 [drm_kms_helper] drm_atomic_helper_prepare_planes+0xda/0x210 [drm_kms_helper] drm_atomic_helper_commit+0xc3/0x1e0 [drm_kms_helper] drm_atomic_commit+0x9c/0x160 [drm] drm_client_modeset_commit_atomic+0x33a/0x380 [drm] drm_client_modeset_commit_locked+0x77/0x220 [drm] drm_client_modeset_commit+0x31/0x60 [drm] __drm_fb_helper_restore_fbdev_mode_unlocked+0xa7/0x170 [drm_kms_helper] drm_fb_helper_set_par+0x51/0x90 [drm_kms_helper] fbcon_init+0x316/0x790 visual_init+0x113/0x1d0 do_bind_con_driver+0x2a3/0x5c0 do_take_over_console+0xa9/0x270 do_fbcon_takeover+0xa1/0x170 do_fb_registered+0x2a8/0x340 fbcon_fb_registered+0x47/0xe0 register_framebuffer+0x294/0x4a0 __drm_fb_helper_initial_config_and_unlock+0x43c/0x880 [drm_kms_helper] drm_fb_helper_initial_config+0x52/0x80 [drm_kms_helper] drm_fbdev_client_hotplug+0x156/0x1b0 [drm_kms_helper] drm_fbdev_generic_setup+0xfc/0x290 [drm_kms_helper] bochs_pci_probe+0x6ca/0x772 [bochs] local_pci_probe+0x4d/0xb0 pci_device_probe+0x119/0x320 really_probe+0x181/0x550 __driver_probe_device+0xc6/0x220 driver_probe_device+0x32/0x100 __driver_attach+0x195/0x200 bus_for_each_dev+0xbb/0x120 driver_attach+0x27/0x30 bus_add_driver+0x22e/0x2f0 driver_register+0xa9/0x190 __pci_register_driver+0x90/0xa0 bochs_pci_driver_init+0x52/0x1000 [bochs] do_one_initcall+0x76/0x430 do_init_module+0x61/0x28a load_module+0x1f82/0x2e50 __do_sys_finit_module+0xf8/0x190 __x64_sys_finit_module+0x23/0x30 do_syscall_64+0x58/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd </TASK> Fixes: 3312be8f ("drm/ttm: move populated state into page flags") Signed-off-by:
Gaosheng Cui <cuigaosheng1@huawei.com> Reviewed-by:
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Ville Syrjälä authored
Now that we know the ring timestamp frequency on gen4/5 we can run the perf tests that depend on sampling the timestamp. On g4x/ilk we must read the udw of the 64bit timestamp register. Details in {g4x,gen5)_read_clock_frequency(). When executing the read via the CS i965 doesn't seem to need the double read trick that CPU mmio reads need. Signed-off-by:Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221031135703.14670-7-ville.syrjala@linux.intel.comReviewed-by:
Lionel Landwerlin <lionel.g.landwerlin@intel.com>
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Ville Syrjälä authored
Now that we actually know the cs timestamp frequency on gen4/5 let's run the corresponding test. On g4x/ilk we must read the udw of the 64bit timestamp register. Details in {g4x,gen5)_read_clock_frequency(). The one extra caveat is that on i965 (or at least CL, don't recall if I ever tested on BW) we must read the register twice to get an up to date value. For some unknown reason the first read tends to return a stale value. Signed-off-by: -
Ville Syrjälä authored
SNB does have the RING_TIMESTAMP register on the RCS engine. Run the MI_BB perf tests on it. Signed-off-by:
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Ville Syrjälä authored
Despite what the spec says the TIMESTAMP register seems to tick once every hrawclk (confirmed on i965gm and g35). v2: Rebase Signed-off-by:
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Ville Syrjälä authored
Gen2/3 have no TIMESTAMP registers to sample so no point in thinking we have any frequency for it either. Signed-off-by:
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Ville Syrjälä authored
On ilk the UDW of TIMESTAMP increments every 1000 ns, LDW is mbz. In order to represent that we'd need 52 bits, but we only have 32 bits. Even worse most things want to only deal with 32 bits of timestamp. So let's just set up the timestamp frequency as if we only had the UDW. On ctg/elk 63:20 of TIMESTAMP increments every 1/4 ns, 19:0 are mbz. To make life simpler let's ignore the LDW and set up timestamp frequency based on the UDW only (increments every 1024 ns). v2: Rebase Signed-off-by:
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- 01 Nov, 2022 6 commits
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Marek Vasut authored
In case mipi_dsi_attach() fails, call drm_panel_remove() to avoid memory leak. Fixes: 849b2e3f ("drm/panel: Add Sitronix ST7701 panel driver") Signed-off-by:
Marek Vasut <marex@denx.de> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221014231106.468063-1-marex@denx.de
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Marek Vasut authored
There are two command register files, CMD1 and CMD2, where only the CMD2 contains additional register sub-files BK0..3 . Pull the register file selection call into separate function instead of duplicating it all over the driver. The CMD2BK2 file is undocumented in datasheet, and is used for BIST. No functional change. Signed-off-by:
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Wayne Boyer authored
WA 18017747507 applies to all DG2 skus. BSpec: 56035, 46121, 68173 Signed-off-by:
Wayne Boyer <wayne.boyer@intel.com> Reviewed-by:
Matt Roper <matthew.d.roper@intel.com> Signed-off-by:
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Marek Vasut authored
The RTNI field is multiplied by 16 and incremented by 512 before being used as the minimum number of pixel clock per horizontal line, hence it is necessary to subtract those 512 bytes from htotal and then divide the result by 16 before writing the value into the RTNI field. Fix the calculation. Fixes: de2b4917 ("drm/panel/panel-sitronix-st7701: Infer horizontal pixel count from TFT mode") Signed-off-by:
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Marco Felsch authored
If a axi bus master with a higher priority do a lot of memory access FIFO underruns can be inspected. Increase the burst size to 256B to avoid such underruns and to improve the memory access efficiency. Fixes: 9db35bb3 ("drm: lcdif: Add support for i.MX8MP LCDIF variant") Signed-off-by:
Marco Felsch <m.felsch@pengutronix.de> Reviewed-by:
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git://anongit.freedesktop.org/drm/drm-intelDave Airlie authored
- Hotplug code clean-up and organization (Jani, Gustavo) - More VBT specific code clean-up, doc, organization, and improvements (Ville) - More MTL enabling work (Matt, RK, Anusha, Jose) - FBC related clean-ups and improvements (Ville) - Removing unused sw_fence_await_reservation (Niranjana) - Big chunch of display house clean-up (Ville) - Many Watermark fixes and clean-ups (Ville) - Fix device info for devices without display (Jani) - Fix TC port PLLs after readout (Ville) - DPLL ID clean-ups (Ville) - Prep work for finishing (de)gamma readout (Ville) - PSR fixes and improvements (Jouni, Jose) - Reject excessive dotclocks early (Ville) - DRRS related improvements (Ville) - Simplify uncore register updates (Andrzej) - Fix simulated GPU reset wrt. encoder HW readout (Imre) - Add a ADL-P workaround (Jose) - Fix clear mask in GEN7_MISCCPCTL update (Andrzej) - Temporarily disable runtime_pm for discrete (Anshuman) - Improve fbdev debugs (Nirmoy) - Fix DP FRL link training status (Ankit) - Other small display fixes (Ankit, Suraj) - Allow panel fixed modes to have differing sync polarities (Ville) - Clean up crtc state flag checks (Ville) - Fix race conditions during DKL PHY accesses (Imre) - Prep-work for cdclock squash and crawl modes (Anusha) - ELD precompute and readout (Ville) Signed-off-by:
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