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* Merge tag 'for-5.19/fbdev-2' of ↵Linus Torvalds2022-06-269-31/+21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev fixes from Helge Deller: "Two bug fixes for the pxa3xx and intelfb drivers: - pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write - intelfb: Initialize value of stolen size The other changes are small cleanups, simplifications and documentation updates to the cirrusfb, skeletonfb, omapfb, intelfb, au1100fb and simplefb drivers" * tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: video: fbdev: omap: Remove duplicate 'the' in comment video: fbdev: omapfb: Align '*' in comment video: fbdev: simplefb: Check before clk_put() not needed video: fbdev: au1100fb: Drop unnecessary NULL ptr check video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write video: fbdev: skeletonfb: Convert to generic power management video: fbdev: cirrusfb: Remove useless reference to PCI power management video: fbdev: intelfb: Initialize value of stolen size video: fbdev: intelfb: Use aperture size from pci_resource_len video: fbdev: skeletonfb: Fix syntax errors in comments
| * video: fbdev: omap: Remove duplicate 'the' in commentJiang Jian2022-06-221-1/+1
| | | | | | | | | | Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: omapfb: Align '*' in commentJiang Jian2022-06-221-1/+1
| | | | | | | | | | | | | | Consider '*' alignment in comments Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: simplefb: Check before clk_put() not neededYihao Han2022-06-201-2/+1
| | | | | | | | | | | | | | | | | | clk_put() already checks the clk ptr using !clk and IS_ERR() so there is no need to check it again before calling it. Signed-off-by: Yihao Han <hanyihao@vivo.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: au1100fb: Drop unnecessary NULL ptr checkYihao Han2022-06-201-4/+2
| | | | | | | | | | | | | | | | | | clk_disable() already checks the clk ptr using IS_ERR_OR_NULL(clk) and clk_enable() checks the clk ptr using !clk, so there is no need to check clk ptr again before calling them. Signed-off-by: Yihao Han <hanyihao@vivo.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_writeHyunwoo Kim2022-06-201-1/+1
| | | | | | | | | | | | | | | | | | In pxa3xx_gcu_write, a count parameter of type size_t is passed to words of type int. Then, copy_from_user() may cause a heap overflow because it is used as the third argument of copy_from_user(). Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: skeletonfb: Convert to generic power managementBjorn Helgaas2022-06-201-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | PCI-specific power management (pci_driver.suspend and pci_driver.resume) is deprecated. If drivers implement power management, they should use the generic power management framework, not the PCI-specific hooks. Convert the sample code to use the generic power management framework. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: cirrusfb: Remove useless reference to PCI power managementBjorn Helgaas2022-06-201-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | PCI-specific power management (pci_driver.suspend and pci_driver.resume) is deprecated. The cirrusfb driver has never implemented power management at all, but if it ever does, it should use the generic power management framework, not the PCI-specific hooks. Remove the commented-out references to the PCI-specific power management hooks. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: intelfb: Initialize value of stolen sizePetr Cvek2022-06-201-2/+2
| | | | | | | | | | | | | | | | | | | | Variable stolen_size can be left uninitialized in a code path with INTEL_855_GMCH_GMS_DISABLED. Fix this by initializing the variable to 0. Also fix indentation of function arguments. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: intelfb: Use aperture size from pci_resource_lenPetr Cvek2022-06-201-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Aperture size for i9x5 variants is determined from PCI base address. if (pci_resource_start(pdev, 2) & 0x08000000) *aperture_size = MB(128); ... This condition is incorrect as 128 MiB address can have the address set as 0x?8000000 or 0x?0000000. Also the code can be simplified to just use pci_resource_len(). The true settings of the aperture size is in the MSAC register, which could be used instead. However the value is used only as an info message, so it doesn't matter. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * video: fbdev: skeletonfb: Fix syntax errors in commentsXiang wangx2022-06-201-1/+1
| | | | | | | | | | | | | | Delete the redundant word 'its'. Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com> Signed-off-by: Helge Deller <deller@gmx.de>
* | parisc/stifb: Fix fb_is_primary_device() only available with CONFIG_FB_STIHelge Deller2022-06-071-0/+2
|/ | | | | | | | | | | Fix this build error noticed by the kernel test robot: drivers/video/console/sticore.c:1132:5: error: redefinition of 'fb_is_primary_device' arch/parisc/include/asm/fb.h:18:19: note: previous definition of 'fb_is_primary_device' Signed-off-by: Helge Deller <deller@gmx.de> Reported-by: kernel test robot <lkp@intel.com> Cc: stable@vger.kernel.org # v5.10+
* Merge tag 'for-5.19/parisc-2' of ↵Linus Torvalds2022-06-044-11/+33
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull more parisc architecture updates from Helge Deller: "A fix to prevent crash at bootup if CONFIG_SCHED_MC is enabled, and add auto-detection of primary graphics card for framebuffer driver" * tag 'for-5.19/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc/stifb: Keep track of hardware path of graphics card parisc/stifb: Implement fb_is_primary_device() parisc: fix a crash with multicore scheduler
| * parisc/stifb: Keep track of hardware path of graphics cardHelge Deller2022-06-043-9/+14
| | | | | | | | | | | | | | | | Keep the pa_path (hardware path) of the graphics card in sti_struct and use this info to give more useful info which card is currently being used. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v5.10+
| * parisc/stifb: Implement fb_is_primary_device()Helge Deller2022-06-042-2/+19
| | | | | | | | | | | | | | | | | | Implement fb_is_primary_device() function, so that fbcon detects if this framebuffer belongs to the default graphics card which was used to start the system. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v5.10+
* | Merge tag 'arm-multiplatform-5.19-2' of ↵Linus Torvalds2022-06-032-2/+182
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull more ARM multiplatform updates from Arnd Bergmann: "The second part of the multiplatform changes now converts the Intel/Marvell PXA platform along with the rest. The patches went through several rebases before the merge window as bugs were found, so they remained separate. This has to touch a lot of drivers, in particular the touchscreen, pcmcia, sound and clk bits, to detach the driver files from the platform and board specific header files" * tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits) ARM: pxa/mmp: remove traces of plat-pxa ARM: pxa: convert to multiplatform ARM: pxa/sa1100: move I/O space to PCI_IOBASE ARM: pxa: remove support for MTD_XIP ARM: pxa: move mach/*.h to mach-pxa/ ARM: PXA: fix multi-cpu build of xsc3 ARM: pxa: move plat-pxa to drivers/soc/ ARM: mmp: rename pxa_register_device ARM: mmp: remove tavorevb board support ARM: pxa: remove unused mach/bitfield.h ARM: pxa: move clk register definitions to driver ARM: pxa: move smemc register access from clk to platform cpufreq: pxa3: move clk register access to clk driver ARM: pxa: remove get_clk_frequency_khz() ARM: pxa: pcmcia: move smemc configuration back to arch ASoC: pxa: i2s: use normal MMIO accessors ASoC: pxa: ac97: use normal MMIO accessors ASoC: pxa: use pdev resource for FIFO regs Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops Input: wm97xx - switch to using threaded IRQ ...
| * | ARM: pxa: move regs-lcd.h into driverArnd Bergmann2022-04-192-0/+181
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only the pxafb driver uses this header, so move it into the same directory. The SMART_* macros are required by some platform data definitions and can go into the linux/platform_data/video-pxafb.h header. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | ARM: pxa: stop using mach/bitfield.hArnd Bergmann2022-04-191-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two identical copies of mach/bitfield.h, one for mach-sa1100 and one for mach-pxa. The pxafb driver only makes use of two macros, which can be trivially open-coded in the header. Cc: dri-devel@lists.freedesktop.org Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | ARM: pxa: split up mach/hardware.hArnd Bergmann2022-04-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mach/hardware.h is included in lots of places, and it provides three different things on pxa: - the cpu_is_pxa* macros - an indirect inclusion of mach/addr-map.h - the __REG() and io_pv2() helper macros Split it up into separate <linux/soc/pxa/cpu.h> and mach/pxa-regs.h headers, then change all the files that use mach/hardware.h to include the exact set of those three headers that they actually need, allowing for further more targeted cleanup. linux/soc/pxa/cpu.h can remain permanently exported and is now in a global location along with similar headers. pxa-regs.h and addr-map.h are only used in a very small number of drivers now and can be moved to arch/arm/mach-pxa/ directly when those drivers are to pass the necessary data as resources. Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Brown <broonie@kernel.org> Cc: linux-clk@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: linux-leds@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: linux-mtd@lists.infradead.org Cc: linux-rtc@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Cc: alsa-devel@alsa-project.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | Merge tag 'for-5.19/fbdev-1' of ↵Linus Torvalds2022-05-308-40/+21
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev fixes and updates from Helge Deller: "A buch of small fixes and cleanups, including: - vesafb: Fix a use-after-free due early fb_info cleanup - clcdfb: Fix refcount leak in clcdfb_of_vram_setup - hyperv_fb: Allow resolutions with size > 64 MB for Gen1 - pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove() - omapfb: Prevent compiler warning regarding hwa742_update_window_async()" * tag 'for-5.19/fbdev-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: video: fbdev: omap: Add prototype for hwa742_update_window_async() video: fbdev: vesafb: Fix a use-after-free due early fb_info cleanup video: fbdev: radeon: Fix spelling typo in comment video: fbdev: xen: remove setting of 'transp' parameter video: fbdev: pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove() video: fbdev: omapfb: simplify the return expression of nec_8048_connect() video: fbdev: omapfb: simplify the return expression of dsi_init_pll_data() video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup video: fbdev: hyperv_fb: Allow resolutions with size > 64 MB for Gen1
| * | | video: fbdev: omap: Add prototype for hwa742_update_window_async()Helge Deller2022-05-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The symbol hwa742_update_window_async() is exported, but there is no prototype defined for it. That's why gcc complains: drivers-video-fbdev-omap-hwa742.c:warning:no-previous-prototype-for-hwa742_update_window_async Add the prototype, but I wonder if we couldn't drop exporting the symbol instead. Since omapfb_update_window_async() is exported the same way, are there any users outside of the tree? Signed-off-by: Helge Deller <deller@gmx.de>
| * | | video: fbdev: vesafb: Fix a use-after-free due early fb_info cleanupJavier Martinez Canillas2022-05-281-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit b3c9a924aab6 ("fbdev: vesafb: Cleanup fb_info in .fb_destroy rather than .remove") fixed a use-after-free error due the vesafb driver freeing the fb_info in the .remove handler instead of doing it in .fb_destroy. This can happen if the .fb_destroy callback is executed after the .remove callback, since the former tries to access a pointer freed by the latter. But that change didn't take into account that another possible scenario is that .fb_destroy is called before the .remove callback. For example, if no process has the fbdev chardev opened by the time the driver is removed. If that's the case, fb_info will be freed when unregister_framebuffer() is called, making the fb_info pointer accessed in vesafb_remove() after that to no longer be valid. To prevent that, move the expression containing the info->par to happen before the unregister_framebuffer() function call. Fixes: b3c9a924aab6 ("fbdev: vesafb: Cleanup fb_info in .fb_destroy rather than .remove") Reported-by: Pascal Ernster <dri-devel@hardfalcon.net> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Pascal Ernster <dri-devel@hardfalcon.net> Signed-off-by: Helge Deller <deller@gmx.de>
| * | | video: fbdev: xen: remove setting of 'transp' parameterTom Rix2022-05-251-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cppcheck reports [drivers/video/fbdev/xen-fbfront.c:226]: (style) Assignment of function parameter has no effect outside the function. The value parameter 'transp' is not used, so setting it can be removed. Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * | | video: fbdev: pxa3xx-gcu: release the resources correctly in ↵Yang Yingliang2022-05-191-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pxa3xx_gcu_probe/remove() In pxa3xx_gcu_probe(), the sequence of error lable is wrong, it will leads some resource leaked, so adjust the sequence to handle the error correctly, and if pxa3xx_gcu_add_buffer() fails, pxa3xx_gcu_free_buffers() need be called. In pxa3xx_gcu_remove(), add missing clk_disable_unpreprare(). Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * | | video: fbdev: omapfb: simplify the return expression of nec_8048_connect()Minghao Chi2022-05-191-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify the return expression. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Helge Deller <deller@gmx.de>
| * | | video: fbdev: omapfb: simplify the return expression of dsi_init_pll_data()Minghao Chi2022-05-191-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify the return expression. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Helge Deller <deller@gmx.de>
| * | | video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setupMiaoqian Lin2022-05-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: d10715be03bd ("video: ARM CLCD: Add DT support") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
| * | | video: fbdev: hyperv_fb: Allow resolutions with size > 64 MB for Gen1Saurabh Sengar2022-05-191-18/+1
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a bug where GEN1 VMs doesn't allow resolutions greater than 64 MB size (eg 7680x4320). Unnecessary PCI check limits Gen1 VRAM to legacy PCI BAR size only (ie 64MB). Thus any, resolution requesting greater then 64MB (eg 7680x4320) would fail. MMIO region assigning this memory shouldn't be limited by PCI bar size. Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Helge Deller <deller@gmx.de>
* | | Merge tag 'for-5.19/parisc-1' of ↵Linus Torvalds2022-05-301-0/+21
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc architecture updates from Helge Deller: "Minor cleanups and code optimizations, e.g.: - improvements in assembly statements in the tmpalias code path - added some additionals compile time checks - drop some unneccesary assembler DMA syncs" * tag 'for-5.19/parisc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Drop __ARCH_WANT_OLD_READDIR and __ARCH_WANT_SYS_OLDUMOUNT parisc: Optimize tmpalias function calls parisc: Add dep_safe() macro to deposit a register in 32- and 64-kernels parisc: Fix wrong comment for shr macro parisc: Prevent ldil() to sign-extend into upper 32 bits parisc: Don't hardcode assembler bit definitions in tmpalias code parisc: Don't enforce DMA completion order in cache flushes parisc: video: fbdev: stifb: Add sti_dump_font() to dump STI font
| * | | parisc: video: fbdev: stifb: Add sti_dump_font() to dump STI fontHelge Deller2022-05-231-0/+21
| |/ / | | | | | | | | | | | | | | | Add a function to dump the STI ROM fonts. Signed-off-by: Helge Deller <deller@gmx.de>
* | | Merge tag 'hyperv-next-signed-20220528' of ↵Linus Torvalds2022-05-281-20/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv updates from Wei Liu: - Harden hv_sock driver (Andrea Parri) - Harden Hyper-V PCI driver (Andrea Parri) - Fix multi-MSI for Hyper-V PCI driver (Jeffrey Hugo) - Fix Hyper-V PCI to reduce boot time (Dexuan Cui) - Remove code for long EOL'ed Hyper-V versions (Michael Kelley, Saurabh Sengar) - Fix balloon driver error handling (Shradha Gupta) - Fix a typo in vmbus driver (Julia Lawall) - Ignore vmbus IMC device (Michael Kelley) - Add a new error message to Hyper-V DRM driver (Saurabh Sengar) * tag 'hyperv-next-signed-20220528' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (28 commits) hv_balloon: Fix balloon_probe() and balloon_remove() error handling scsi: storvsc: Removing Pre Win8 related logic Drivers: hv: vmbus: fix typo in comment PCI: hv: Fix synchronization between channel callback and hv_pci_bus_exit() PCI: hv: Add validation for untrusted Hyper-V values PCI: hv: Fix interrupt mapping for multi-MSI PCI: hv: Reuse existing IRTE allocation in compose_msi_msg() drm/hyperv: Remove support for Hyper-V 2008 and 2008R2/Win7 video: hyperv_fb: Remove support for Hyper-V 2008 and 2008R2/Win7 scsi: storvsc: Remove support for Hyper-V 2008 and 2008R2/Win7 Drivers: hv: vmbus: Remove support for Hyper-V 2008 and Hyper-V 2008R2/Win7 x86/hyperv: Disable hardlockup detector by default in Hyper-V guests drm/hyperv: Add error message for fb size greater than allocated PCI: hv: Do not set PCI_COMMAND_MEMORY to reduce VM boot time PCI: hv: Fix hv_arch_irq_unmask() for multi-MSI Drivers: hv: vmbus: Refactor the ring-buffer iterator functions Drivers: hv: vmbus: Accept hv_sock offers in isolated guests hv_sock: Add validation for untrusted Hyper-V values hv_sock: Copy packets sent by Hyper-V out of the ring buffer hv_sock: Check hv_pkt_iter_first_raw()'s return value ...
| * | | video: hyperv_fb: Remove support for Hyper-V 2008 and 2008R2/Win7Michael Kelley2022-05-111-20/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hyperv_fb driver has special case code for running on the first released versions of Hyper-V: 2008 and 2008 R2/Windows 7. These versions are now out of support (except for extended security updates) and lack support for performance features that are needed for effective production usage of Linux guests. The negotiation of the VMbus protocol versions required by these old Hyper-V versions has been removed from the VMbus driver. So now remove the handling of these VMbus protocol versions from the hyperv_fb driver. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/1651509391-2058-4-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
* | | | Merge tag 'arm-multiplatform-5.19-1' of ↵Linus Torvalds2022-05-2615-23/+592
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARMv4T/v5 multiplatform support from Arnd Bergmann: "This series has been 12 years in the making, it mostly finishes the work that was started with the founding of Linaro to clean up platform support in the kernel. The largest change here is a cleanup of the omap1 platform, which is the final ARM machine type to get converted to the common-clk subsystem. All the omap1 specific drivers are now made independent of the mach/*.h headers to allow the platform to be part of a generic ARMv4/v5 multiplatform kernel. The last bit that enables this support is still missing here while we wait for some last dependencies to make it into the mainline kernel through other subsystems. The s3c24xx, ixp4xx, iop32x, ep93xx and dove platforms were all almost at the point of allowing multiplatform kernels, this work gets completed here along with a few additional cleanup. At the same time, the s3c24xx and s3c64xx are now deprecated and expected to get removed in the future. The PXA and OMAP1 bits are in a separate branch because of dependencies. Once both branches are merged, only the three Intel StrongARM platforms (RiscPC, Footbridge/NetWinder and StrongARM1100) need separate kernels, and there are no plans to include these" * tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits) ARM: ixp4xx: Consolidate Kconfig fixing issue ARM: versatile: Add missing of_node_put in dcscb_init ARM: config: Refresh IXP4xx config after multiplatform ARM: omap1: add back omap_set_dma_priority() stub ARM: omap: fix missing declaration warnings ARM: omap: fix address space warnings from sparse ARM: spear: remove include/mach/ subdirectory ARM: davinci: remove include/mach/ subdirectory ARM: omap2: remove include/mach/ subdirectory integrator: remove empty ap_init_early() ARM: s3c: fix include path MAINTAINERS: omap1: Add Janusz as an additional maintainer ARM: omap1: htc_herald: fix typos in comments ARM: OMAP1: fix typos in comments ARM: OMAP1: clock: Remove noop code ARM: OMAP1: clock: Remove unused code ARM: OMAP1: clock: Fix UART rate reporting algorithm ARM: OMAP1: clock: Fix early UART rate issues ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF ARM: omap1: fix build with no SoC selected ...
| * | | | fbdev: omap: avoid using mach/*.h filesArnd Bergmann2022-04-2110-13/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the headers we actually need are now in include/linux/soc, so use those versions instead and allow compile-testing on other architectures. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | fbdev: omap: pass irqs as resourceArnd Bergmann2022-04-214-5/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To avoid relying on the mach/irqs.h header, stop using OMAP_LCDC_IRQ and INT_1610_SoSSI_MATCH directly in the driver code, but instead pass these as resources. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | ARM: omap1: move lcd_dma code into omapfb driverArnd Bergmann2022-04-217-2/+549
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The omapfb driver is split into platform specific code for omap1, and driver code that is also specific to omap1. Moving both parts into the driver directory simplifies the structure and avoids the dependency on certain omap machine header files. As mach/lcd_dma.h can not be included from include/linux/omap-dma.h any more now, move the omap_lcd_dma_running() declaration into the omap-dma header, which matches where it is defined. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | ARM: omap1: innovator: pass lcd control address as pdataArnd Bergmann2022-04-211-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To avoid using the mach/omap1510.h header file, pass the correct address as platform data. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | video: fbdev: omapfb: lcd_ams_delta: fix unused variable warningArnd Bergmann2022-04-211-2/+2
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A recent cleanup patch removed the only reference to a local variable in some configurations. Move the variable into the one block it is still used in, inside of an #ifdef, to avoid this warning. Fixes: 9d773f103b89 ("video: fbdev: omapfb: lcd_ams_delta: Make use of the helper function dev_err_probe()") Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | | Merge tag 'sound-5.19-rc1' of ↵Linus Torvalds2022-05-261-1/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "Not much dramatic changes at this time, but we've received quite a lot of changes for ASoC, while there are still a few fixes and quirks for usual HD- and USB-auido. Here are some highlights. ASoC: - Overhaul of endianness specification for data formats, avoiding needless restrictions due to CODECs - Initial stages of Intel AVS driver merge - Introduction of v4 IPC mechanism for SOF - TDM mode support for AK4613 - Support for Analog Devices ADAU1361, Cirrus Logic CS35L45, Maxim MAX98396, MediaTek MT8186, NXP i.MX8 micfil and SAI interfaces, nVidia Tegra186 ASRC, and Texas Instruments TAS2764 and TAS2780 Others: - A few regression fixes after the USB-audio endpoint management refactoring - More enhancements for Cirrus HD-audio codec support (still ongoing) - Addition of generic serial MIDI driver" * tag 'sound-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (504 commits) ALSA: hda/realtek - Add new type for ALC245 ALSA: usb-audio: Configure sync endpoints before data ALSA: ctxfi: fix typo in comment ALSA: cs5535audio: fix typo in comment ALSA: ctxfi: Add SB046x PCI ID ALSA: usb-audio: Add missing ep_idx in fixed EP quirks ALSA: usb-audio: Workaround for clock setup on TEAC devices ALSA: lola: Bounds check loop iterator against streams array size ASoC: max98090: Move check for invalid values before casting in max98090_put_enab_tlv() ASoC: rt1308-sdw: add the default value of register 0xc320 ASoC: rt9120: Use pm_runtime and regcache to optimize 'pwdnn' logic ASoC: rt9120: Fix 3byte read, valule offset typo ASoC: amd: acp: Set Speaker enable/disable pin through rt1019 codec driver. ASoC: amd: acp: Set Speaker enable/disable pin through rt1019 codec driver ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition() ASoC: codecs: lpass: Fix passing zero to 'PTR_ERR' ASoC: SOF: sof-client-ipc-flood-test: use pm_runtime_resume_and_get() ASoC: SOF: mediatek: remove duplicate include in mt8195.c ASoC: SOF: mediatek: Add mt8195 debug dump ASoC: SOF: mediatek: Add mediatek common debug dump ...
| * \ \ \ Merge tag 'asoc-v5.19' of ↵Takashi Iwai2022-05-231-1/+1
| |\ \ \ \ | | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v5.19 This is quite a big update, partly due to the addition of some larger drivers (more of which is to follow since at least the AVS driver is still a work in progress) and partly due to Charles' work sorting out our handling of endianness. As has been the case recently it's much more about drivers than the core. - Overhaul of endianness specification for data formats, avoiding needless restrictions due to CODECs. - Initial stages of Intel AVS driver merge. - Introduction of v4 IPC mechanism for SOF. - TDM mode support for AK4613. - Support for Analog Devices ADAU1361, Cirrus Logic CS35L45, Maxim MAX98396, MediaTek MT8186, NXP i.MX8 micfil and SAI interfaces, nVidia Tegra186 ASRC, and Texas Instruments TAS2764 and TAS2780
| | * | | dmaengine: imx: Move header to include/dma/Sascha Hauer2022-04-191-1/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX DMA drivers are device tree only, nothing in include/linux/platform_data/dma-imx.h has platform_data in it, so move the file to include/linux/dma/imx-dma.h. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-By: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20220414162249.3934543-10-s.hauer@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
* | | | Merge tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drmLinus Torvalds2022-05-2616-635/+646
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm updates from Dave Airlie: "Intel have enabled DG2 on certain SKUs for laptops, AMD has started some new GPU support, msm has user allocated VA controls dma-buf: - add dma_resv_replace_fences - add dma_resv_get_singleton - make dma_excl_fence private core: - EDID parser refactorings - switch drivers to drm_mode_copy/duplicate - DRM managed mutex initialization display-helper: - put HDMI, SCDC, HDCP, DSC and DP into new module gem: - rework fence handling ttm: - rework bulk move handling - add common debugfs for resource managers - convert to kvcalloc format helpers: - support monochrome formats - RGB888, RGB565 to XRGB8888 conversions fbdev: - cfb/sys_imageblit fixes - pagelist corruption fix - create offb platform device - deferred io improvements sysfb: - Kconfig rework - support for VESA mode selection bridge: - conversions to devm_drm_of_get_bridge - conversions to panel_bridge - analogix_dp - autosuspend support - it66121 - audio support - tc358767 - DSI to DPI support - icn6211 - PLL/I2C fixes, DT property - adv7611 - enable DRM_BRIDGE_OP_HPD - anx7625 - fill ELD if no monitor - dw_hdmi - add audio support - lontium LT9211 support, i.MXMP LDB - it6505: Kconfig fix, DPCD set power fix - adv7511 - CEC support for ADV7535 panel: - ltk035c5444t, B133UAN01, NV3052C panel support - DataImage FG040346DSSWBG04 support - st7735r - DT bindings fix - ssd130x - fixes i915: - DG2 laptop PCI-IDs ("motherboard down") - Initial RPL-P PCI IDs - compute engine ABI - DG2 Tile4 support - DG2 CCS clear color compression support - DG2 render/media compression formats support - ATS-M platform info - RPL-S PCI IDs added - Bump ADL-P DMC version to v2.16 - Support static DRRS - Support multiple eDP/LVDS native mode refresh rates - DP HDR support for HSW+ - Lots of display refactoring + fixes - GuC hwconfig support and query - sysfs support for multi-tile - fdinfo per-client gpu utilisation - add geometry subslices query - fix prime mmap with LMEM - fix vm open count and remove vma refcounts - contiguous allocation fixes - steered register write support - small PCI BAR enablement - GuC error capture support - sunset igpu legacy mmap support for newer devices - GuC version 70.1.1 support amdgpu: - Initial SoC21 support - SMU 13.x enablement - SMU 13.0.4 support - ttm_eu cleanups - USB-C, GPUVM updates - TMZ fixes for RV - RAS support for VCN - PM sysfs code cleanup - DC FP rework - extend CG/PG flags to 64-bit - SI dpm lockdep fix - runtime PM fixes amdkfd: - RAS/SVM fixes - TLB flush fixes - CRIU GWS support - ignore bogus MEC signals more efficiently msm: - Fourcc modifier for tiled but not compressed layouts - Support for userspace allocated IOVA (GPU virtual address) - DPU: DSC (Display Stream Compression) support - DP: eDP support - DP: conversion to use drm_bridge and drm_bridge_connector - Merge DPU1 and MDP5 MDSS driver - DPU: writeback support nouveau: - make some structures static - make some variables static - switch to drm_gem_plane_helper_prepare_fb radeon: - misc fixes/cleanups mxsfb: - rework crtc mode setting - LCDIF CRC support etnaviv: - fencing improvements - fix address space collisions - cleanup MMU reference handling gma500: - GEM/GTT improvements - connector handling fixes komeda: - switch to plane reset helper mediatek: - MIPI DSI improvements omapdrm: - GEM improvements qxl: - aarch64 support vc4: - add a CL submission tracepoint - HDMI YUV support - HDMI/clock improvements - drop is_hdmi caching virtio: - remove restriction of non-zero blob types vmwgfx: - support for cursormob and cursorbypass 4 - fence improvements tidss: - reset DISPC on startup solomon: - SPI support - DT improvements sun4i: - allwinner D1 support - drop is_hdmi caching imx: - use swap() instead of open-coding - use devm_platform_ioremap_resource - remove redunant initializations ast: - Displayport support rockchip: - Refactor IOMMU initialisation - make some structures static - replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi - support swapped YUV formats, - clock improvements - rk3568 support - VOP2 support mediatek: - MT8186 support tegra: - debugabillity improvements" * tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm: (1740 commits) drm/i915/dsi: fix VBT send packet port selection for ICL+ drm/i915/uc: Fix undefined behavior due to shift overflowing the constant drm/i915/reg: fix undefined behavior due to shift overflowing the constant drm/i915/gt: Fix use of static in macro mismatch drm/i915/audio: fix audio code enable/disable pipe logging drm/i915: Fix CFI violation with show_dynamic_id() drm/i915: Fix 'mixing different enum types' warnings in intel_display_power.c drm/i915/gt: Fix build error without CONFIG_PM drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path drm/msm/dpu: add DRM_MODE_ROTATE_180 back to supported rotations drm/msm: don't free the IRQ if it was not requested drm/msm/dpu: limit writeback modes according to max_linewidth drm/amd: Don't reset dGPUs if the system is going to s2idle drm/amdgpu: Unmap legacy queue when MES is enabled drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() drm/msm: Fix fb plane offset calculation drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init drm/msm/dsi: don't powerup at modeset time for parade-ps8640 drm/rockchip: Change register space names in vop2 dt-bindings: display: rockchip: make reg-names mandatory for VOP2 ...
| * | | Merge tag 'amd-drm-next-5.19-2022-05-18' of ↵Dave Airlie2022-05-191-47/+0
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://gitlab.freedesktop.org/agd5f/linux into drm-next amd-drm-next-5.19-2022-05-18: amdgpu: - Misc code cleanups - Additional SMU 13.x enablement - Smartshift fixes - GFX11 fixes - Support for SMU 13.0.4 - SMU mutex fix - Suspend/resume fix amdkfd: - static checker fix - Doorbell/MMIO resource handling fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220518205621.5741-1-alexander.deucher@amd.com
| | * | | Revert "fbdev: fbmem: add a helper to determine if an aperture is used by a ↵Alex Deucher2022-05-051-47/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fw fb" This reverts commit 9a45ac2320d0a6ae01880a30d4b86025fce4061b. This was added a helper for amdgpu to workaround a runtime pm regression caused by a runtime pm fix in efifb. We now have a better workaround in amdgpu in commit f95af4a9236695 ("drm/amdgpu: don't runtime suspend if there are displays attached (v3)") so this workaround is no longer necessary. Since amdgpu was the only user of this interface, we can remove it. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| * | | | fbdev: Use pageref offset for deferred-I/O writebackThomas Zimmermann2022-05-037-24/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use pageref->offset instead of page->index for deferred-I/O writeback where appropriate. Distinguishes between file-mapping offset and video- memory offset. While at it, also remove unnecessary references to struct page. Fbdev's deferred-I/O code uses the two related page->index and pageref->offset. The former is the page offset in the mapped file, the latter is the byte offset in the video memory (or fbdev screen buffer). It's the same value for fbdev drivers, but for DRM the values can be different. Because GEM buffer objects are mapped at an offset in the DRM device file, page->index has this offset added to it as well. We currently don't hit this case in DRM, because all affected mappings of GEM memory are performed with an internal, intermediate shadow buffer. The value of page->index is required by page_mkclean(), which we call to reset the mappings during the writeback phase of the deferred I/O. The value of pageref->offset is for conveniently getting an offset into video memory in fb helpers. v4: * fix commit message (Javier) Suggested-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-6-tzimmermann@suse.de
| * | | | fbdev: Rename pagelist to pagereflist for deferred I/OThomas Zimmermann2022-05-0310-52/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename various instances of pagelist to pagereflist. The list now stores pageref structures, so the new name is more appropriate. In their write-back helpers, several fbdev drivers refer to the pageref list in struct fb_deferred_io instead of using the one supplied as argument to the function. Convert them over to the supplied one. It's the same instance, so no change of behavior occurs. v4: * fix commit message (Javier) Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-5-tzimmermann@suse.de
| * | | | fbdev: Refactor implementation of page_mkwriteThomas Zimmermann2022-05-031-15/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor the page-write handler for deferred I/O. Drivers use the function to let fbdev track written pages of mmap'ed framebuffer memory. v3: * keep locking within track-pages function for readability (Sam) v2: * don't export the helper until we have an external caller Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-4-tzimmermann@suse.de
| * | | | fbdev: Track deferred-I/O pages in pageref structThomas Zimmermann2022-05-038-66/+126
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Store the per-page state for fbdev's deferred I/O in struct fb_deferred_io_pageref. Maintain a list of pagerefs for the pages that have to be written back to video memory. Update all affected drivers. As with pages before, fbdev acquires a pageref when an mmaped page of the framebuffer is being written to. It holds the pageref in a list of all currently written pagerefs until it flushes the written pages to video memory. Writeback occurs periodically. After writeback fbdev releases all pagerefs and builds up a new dirty list until the next writeback occurs. Using pagerefs has a number of benefits. For pages of the framebuffer, the deferred I/O code used struct page.lru as an entry into the list of dirty pages. The lru field is owned by the page cache, which makes deferred I/O incompatible with some memory pages (e.g., most notably DRM's GEM SHMEM allocator). struct fb_deferred_io_pageref now provides an entry into a list of dirty framebuffer pages, freeing lru for use with the page cache. Drivers also assumed that struct page.index is the page offset into the framebuffer. This is not true for DRM buffers, which are located at various offset within a mapped area. struct fb_deferred_io_pageref explicitly stores an offset into the framebuffer. struct page.index is now only the page offset into the mapped area. These changes will allow DRM to use fbdev deferred I/O without an intermediate shadow buffer. v3: * use pageref->offset for sorting * fix grammar in comment v2: * minor fixes in commit message Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-3-tzimmermann@suse.de
| * | | | fbdev: Put mmap for deferred I/O into driversThomas Zimmermann2022-05-0311-10/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fbdev mmap function fb_mmap() unconditionally overrides the driver's implementation if deferred I/O has been activated. This makes it hard to implement mmap with anything but a vmalloc()'ed software buffer. That is specifically a problem for DRM, where video memory is maintained by a memory manager. Leave the mmap handling to drivers and expect them to call the helper for deferred I/O by thmeselves. v4: * unlock mm_lock in fb_mmap() error path (Dan) v3: * fix warning if fb_mmap is missing (kernel test robot) v2: * print a helpful error message if the defio setup is incorrect (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220429100834.18898-2-tzimmermann@suse.de
| * | | | Backmerge tag 'v5.18-rc5' of ↵Dave Airlie2022-05-0328-44/+59
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next Linux 5.18-rc5 There was a build fix for arm I wanted in drm-next, so backmerge rather then cherry-pick. Signed-off-by: Dave Airlie <airlied@redhat.com>