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2025-05-29global: Avoid indirect inclusion of <env.h> from <net.h>Tom Rini
Now that env_get_ip() has been removed, the include file <net.h> does not need anything from <env.h>. Furthermore, include/env.h itself includes other headers which can lead to longer indirect inclusion paths. To prepare to remove <env.h> from <net.h> fix all of the remaining places which had relied on this indirect inclusion to instead include <env.h> directly. Reviewed-by: Jerome Forissier <[email protected]> # net/lwip Acked-by: Ilias Apalodimas <[email protected]> Reviewed-by: Wolfgang Wallner <[email protected]> Reviewed-by: Martyn Welch <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2025-05-14global: Avoid indirect inclusion of <env.h> from <command.h>Tom Rini
The include file <command.h> does not need anything from <env.h>. Furthermore, include/env.h itself includes other headers which can lead to longer indirect inclusion paths. To prepare to remove <env.h> from <command.h> fix all of the places which had relied on this indirect inclusion to instead include <env.h> directly. Signed-off-by: Tom Rini <[email protected]> --- Cc: Anatolij Gustschin <[email protected]> Cc: Bin Meng <[email protected]> Cc: Heinrich Schuchardt <[email protected]> Cc: Ilias Apalodimas <[email protected]> Cc: Jaehoon Chung <[email protected]> Cc: Jerome Forissier <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Lukasz Majewski <[email protected]> Cc: Marek Vasut <[email protected]> Cc: Mark Kettenis <[email protected]> Cc: Masahisa Kojima <[email protected]> Cc: Mattijs Korpershoek <[email protected]> Cc: Patrice Chotard <[email protected]> Cc: Patrick Delaunay <[email protected]> Cc: Rayagonda Kokatanur <[email protected]> Cc: Simon Glass <[email protected]> Cc: Simon Goldschmidt <[email protected]> Cc: Stefan Bosch <[email protected]> Cc: Tien Fong Chee <[email protected]> Cc: Tingting Meng <[email protected]> Cc: Tobias Waldekranz <[email protected]>
2025-05-02video: Add a function to draw a rectangleSimon Glass
Provide a way to draw an unfilled box of a certain width. This is useful for grouping menu items together. Add a comment showing how to see the copy-framebuffer, for testing. Signed-off-by: Simon Glass <[email protected]>
2025-05-02video: Allow console output to be silencedSimon Glass
When using expo we want to be able to control the information on the display and avoid other messages (such as USB scanning) appearing. Add a 'quiet' flag for the console, to help with this. The test is a little messy since stdio is still using the original vidconsole create on start-up. So take care to use the same. Signed-off-by: Simon Glass <[email protected]>
2025-05-02test: video: Export the video-checking functionsSimon Glass
We want to check the display contents in expo tests, so move the two needed functions to a new header file. Rename them to have a video_ prefix. Signed-off-by: Simon Glass <[email protected]>
2025-05-02video: Add a way to write a partial string to the consoleSimon Glass
When writing multiple lines of text we need to be able to control which text goes on each line. Add a new vidconsole_put_stringn() function to help with this. Signed-off-by: Simon Glass <[email protected]>
2025-05-02video: truetype: Support a limit on the width of a lineSimon Glass
Expo needs to be able to word-wrap lines so that they are displayed as the user expects. Add a limit on the width of each line and support this in the measurement algorithm. Add a log category to truetype while we are here. Signed-off-by: Simon Glass <[email protected]>
2025-05-02video: truetype: Support newlines in the measured stringSimon Glass
It is useful to be able to embed newline characters in the string and have the text measured into multiple lines. Add support for this. Signed-off-by: Simon Glass <[email protected]>
2025-05-02video: truetype: Fill in the measured lineSimon Glass
Create a measured line for the (single) line of text. Signed-off-by: Simon Glass <[email protected]>
2025-05-02video: Begin support for measuring multiple lines of textSimon Glass
Update the vidconsole API so that measure() can measure multiple lines of text. This will make it easier to implement multi-line fields in expo. Tidy up the function comments while we are here. Signed-off-by: Simon Glass <[email protected]>
2025-05-02video: Add a test for font measurementSimon Glass
Add a simple test which measures a line of text using a Truetype font. Signed-off-by: Simon Glass <[email protected]>
2025-05-01video: Use VIDEO_DAMAGE for VIDEO_COPYAlexander Graf
CONFIG_VIDEO_COPY implemented a range-based copying mechanism: If we print a single character, it will always copy the full range of bytes from the top left corner of the character to the lower right onto the uncached frame buffer. This includes pretty much the full line contents of the printed character. Since we now have proper damage tracking, let's make use of that to reduce the amount of data we need to copy. With this patch applied, we will only copy the tiny rectangle surrounding characters when we print them, speeding up the video console. After this, changes to the main frame buffer are not immediately copied to the copy frame buffer, but postponed until the next video device sync. So issue an explicit sync before inspecting the copy frame buffer contents for the video tests. Signed-off-by: Alexander Graf <[email protected]> [Alper: Rebase for fontdata->height/w, fill_part(), fix memmove(dev), drop from defconfig, use damage.xstart/yend, use IS_ENABLED(), call video_sync() before copy_fb check, update video_copy test] Co-developed-by: Alper Nebi Yasak <[email protected]> Signed-off-by: Alper Nebi Yasak <[email protected]> Link: https://lore.kernel.org/u-boot/[email protected]/
2025-05-01video: test: Test video damage tracking via vidconsoleAlper Nebi Yasak
With VIDEO_DAMAGE, the video uclass tracks updated regions of the frame buffer in order to avoid unnecessary work during a video sync. Enable the config in sandbox and add a test for it, by printing strings at a few locations and checking the tracked region. Signed-off-by: Alper Nebi Yasak <[email protected]> Reviewed-by: Simon Glass <[email protected]> Adjust test avoid temporary failures in this patch: Signed-off-by: Simon Glass <[email protected]> Link: https://lore.kernel.org/u-boot/[email protected]/
2025-05-01video: test: Test partial updates of hardware frame bufferAlper Nebi Yasak
With VIDEO_COPY enabled, only the modified parts of the frame buffer are intended to be copied to the hardware. Add a test that checks this, by overwriting contents we prepared without telling the video uclass and then checking if the overwritten contents have been redrawn on the next sync. Signed-off-by: Alper Nebi Yasak <[email protected]> Reviewed-by: Simon Glass <[email protected]> Link: https://lore.kernel.org/u-boot/[email protected]/
2025-05-01video: test: Support checking copy frame buffer contentsAlper Nebi Yasak
The video tests have a helper function to generate a pseudo-digest of frame buffer contents, but it only does so for the main one. There is another check that the copy frame buffer is the same as that. But neither is enough to test if only the modified regions are copied to the copy frame buffer, since we will want the two to be different in very specific ways. Add a boolean argument to the existing helper function to indicate which frame buffer we want to inspect, and update the existing callers. Signed-off-by: Alper Nebi Yasak <[email protected]> Reviewed-by: Simon Glass <[email protected]> Link: https://lore.kernel.org/u-boot/[email protected]/
2025-05-01video: test: Split copy frame buffer check into a functionAlper Nebi Yasak
While checking frame buffer contents, the video tests also check if the copy frame buffer contents match the main frame buffer. To test if only the modified regions are updated after a sync, we will need to create situations where the two are mismatched. Split this check into another function that we can skip calling, since we won't want it to error on those mismatched cases. Signed-off-by: Alper Nebi Yasak <[email protected]> Reviewed-by: Simon Glass <[email protected]> Link: https://lore.kernel.org/u-boot/[email protected]/
2025-04-28power-domain: Add support for refcounting (again)Miquel Raynal
It is very surprising that such an uclass, specifically designed to handle resources that may be shared by different devices, is not keeping the count of the number of times a power domain has been enabled/disabled to avoid shutting it down unexpectedly or disabling it several times. Doing this causes troubles on eg. i.MX8MP because disabling power domains can be done in recursive loops were the same power domain disabled up to 4 times in a row. PGCs seem to have tight FSM internal timings to respect and it is easy to produce a race condition that puts the power domains in an unstable state, leading to ADB400 errors and later crashes in Linux. Some drivers implement their own mechanism for that, but it is probably best to add this feature in the uclass and share the common code across drivers. In order to avoid breaking existing drivers, refcounting is only enabled if the number of subdomains a device node supports is explicitly set in the probe function. ->xlate() callbacks will return the power domain ID which is then being used as the array index to reach the correct refcounter. As we do not want to break existing users while stile getting interesting error codes, the implementation is split between: - a low-level helper reporting error codes if the requested transition could not be operated, - a higher-level helper ignoring the "non error" codes, like EALREADY and EBUSY. CI tests using power domains are slightly updated to make sure the count of on/off calls is even and the results match what we *now* expect. They are also extended to test the low-level functions. Signed-off-by: Miquel Raynal <[email protected]>
2025-04-23test: dm: eth, dsa: update tests for NET_LWIPJerome Forissier
Convert the tests to use the do_ping() interface which is now common to NET and NET_LWIP. This allows running most network test with SANDBOX and NET_LWIP. A few things to note though: 1. The ARP and IPv6 tests are enabled for NET only 2. The net_retry test is modified to use eth0 (eth@10002000) as the active (but disabled) interface, and therefore we expect eth1 (eth@10003000) to be the fallback when "netretry" is "yes". This is in replacement of eth7 (lan1) and eth0 (eth@10002000) respectively. Indeed, it seems eth7 works with NET by chance and it certainly does not work with NET_LWIP. I observed that even with NET, sandbox_eth_disable_response(1, true) has no effect: remove it and the test still passes. The interface ID is not correct to begin with; 1 corresponds to eth1 (eth@10003000) as shown by debug traces, it is not eth7 (lan1). And using index 7 causes a SEGV. In fact, it is not the call to sandbox_eth_disable_response() that prevents the stack from processing the ICMP reply but the timeout caused by the call to sandbox_eth_skip_timeout(). Here is what happens when trying to ping using the eth7 (lan1) interface with NET: do_ping(...) net_loop(PING) ping_start() eth_rx() sb_eth_recv() time_test_add_offset(11000UL); if (get_timer(0) - time_start > time_delta) ping_timeout_handler() // ping error, as expected And the same with NET_LWIP: do_ping(...) ping_loop(...) sys_check_timeouts() net_lwip_rx(...) sb_eth_recv() time_test_add_offset(11000UL); netif->input(...) // the packet is processed succesfully By choosing eth0 and sandbox_eth_disable_response(0, true), the incoming packet is indeed discarded and things work as expected with both network stacks. Signed-off-by: Jerome Forissier <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2025-04-18Revert "power-domain: Add refcounting"Wadim Egorov
Unfortunately this change breaks boot on K3 platform. U-Boot will hang after: U-Boot SPL 2025.04-01050-ga40fc5afaec0 (Apr 14 2025 - 07:31:32 +0000) SYSFW ABI: 3.1 (firmware rev 0x0009 '9.2.7--v09.02.07 (Kool Koala)') This reverts commit 197376fbf300e92afa0a1583815d9c9eb52d613a as suggested in [1]. [1] https://lists.denx.de/pipermail/u-boot/2025-April/587032.html Signed-off-by: Wadim Egorov <[email protected]> Acked-by: Miquel Raynal <[email protected]>
2025-04-10power-domain: Add refcountingMiquel Raynal
It is very surprising that such an uclass, specifically designed to handle resources that may be shared by different devices, is not keeping the count of the number of times a power domain has been enabled/disabled to avoid shutting it down unexpectedly or disabling it several times. Doing this causes troubles on eg. i.MX8MP because disabling power domains can be done in recursive loops were the same power domain disabled up to 4 times in a row. PGCs seem to have tight FSM internal timings to respect and it is easy to produce a race condition that puts the power domains in an unstable state, leading to ADB400 errors and later crashes in Linux. CI tests using power domains are slightly updated to make sure the count of on/off calls is even and the results match what we *now* expect. As we do not want to break existing users while stile getting interesting error codes, the implementation is split between: - a low-level helper reporting error codes if the requested transition could not be operated, - a higher-level helper ignoring the "non error" codes, like EALREADY and EBUSY. Signed-off-by: Miquel Raynal <[email protected]>
2025-04-10test: dm: test-fdt: Add checks for uclass_get_device_by_endpoint()Miquel Raynal
This is a new DM core helper. There is now a graph endpoint representation in the sandbox test DTS, so we can just use it to verify the helper proper behavior. Suggested-by: Simon Glass <[email protected]> Reviewed-by: Simon Glass <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2025-04-03Merge patch series "x86: Improve operation under QEMU"Tom Rini
Simon Glass <[email protected]> says: U-Boot can start and boot an OS in both qemu-x86 and qemu-x86_64 but it is not perfect. With both builds, executing the VESA ROM causes an intermittent hang, at least on some AMD CPUs. With qemu-x86_64 kvm cannot be used since the move to long mode (64-bit) is done in a way that works on real hardware but not with QEMU. This means that performance is 4-5x slower than it could be, at least on my CPU. We can work around the first problem by using Bochs, which is anyway a better choice than VESA for QEMU. The second can be addressed by using the same descriptor across the jump to long mode. With an MTRR fix this allows booting into Ubuntu on qemu-x86_64 In v3 some e820 patches are included to make booting reliable and avoid ACPI tables being dropped. Also, several MTTR problems are addressed, to support memory sizes above 4GB reliably. Link: https://lore.kernel.org/all/[email protected]/
2025-04-03acpi: Support checking checksumsSimon Glass
When the ACPI tables come from an earlier bootloader it is helpful to see whether the checksums are correct or not. Add a -c flag to the 'acpi list' command to support that. Signed-off-by: Simon Glass <[email protected]>
2025-04-03test: acpi: Correct memory leaksSimon Glass
Free the memory used in tests to avoid a leak. Also unmap the addresses for sandbox. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]>
2025-04-03Merge patch series "acpi_table: Fix IORT RC node"Tom Rini
This series from Patrick Rudolph <[email protected]> brings in an assortment of ACPI related fixes. Link: https://lore.kernel.org/r/[email protected]
2025-04-03test: acpi: Add IORT testsPatrick Rudolph
Add tests for IORT table generation: - SMMU_V3 node - RC node Signed-off-by: Patrick Rudolph <[email protected]>
2025-03-12Merge branch 'graph' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-tegra into next
2025-03-08test: dm: add video bridge testsSvyatoslav Ryhel
Add tests for video bridge ops. Signed-off-by: Svyatoslav Ryhel <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2025-03-08test: dm: add ofnode_graph testsSvyatoslav Ryhel
Test suit for of_graph parsing helpers. Signed-off-by: Svyatoslav Ryhel <[email protected]>
2025-02-11test: Make all tests depend on UNIT_TESTSimon Glass
Rather than having this condition defined separately for each suite, bracket all options with 'if UNIT_TEST'. Signed-off-by: Simon Glass <[email protected]>
2025-02-11test: Drop sandbox_set_enable_memio() from mux-cmd testSimon Glass
This test does not appear to use sandbox's memory-mapped I/O so there is no need to enable it. Even if there were a need, it should be disabled at the end of the test, so as not to affect other tests. Drop these lines from the test. Signed-off-by: Simon Glass <[email protected]>
2025-02-07led: add function naming option from linuxHeiko Schocher
in linux we have the option to create the name of a led optionally through the following properties: - function - color - function-enumerator This patch adds support for parsing this properties if there is no label property. The led name is created in led_post_bind() and we need some storage place for it. Currently this patch prevents to use malloc() instead it stores the name in new member : char name[LED_MAX_NAME_SIZE]; of struct led_uc_plat. While at it append led tests for the new feature. Signed-off-by: Heiko Schocher <[email protected]> Reviewed-by: Tom Rini <[email protected]>
2025-01-24Merge patch series "test: Improvements to ut command and test-suite running"Tom Rini
Simon Glass <[email protected]> says: The current method of running unit tests relies on subcommands of the ut command. Only the code in each subcommand knows how to find the tests related to that subcomand. This is not ideal and we now have quite a few subcommands which do nothing but locate the relevant tests in a linker list, then call a common function to run them. This series adds a list of test suites, so that these subcommands can be removed. An issue with 'ut all' is that it doesn't record how many tests failed overall, so it is necessary to examine copious amounts of output to look for failures. This series adds a new 'total' feature allow recording the total number of failed tests. To help with 'ut all' a new pytest is created which runs it (as well as 'ut info') and makes sure that all is well. Due to the 'ut all' failures this does not pass, so the test is disabled for now. It is here because it provides security against misnaming a test suite and causing it not to run. Future work may: - get 'ut all' passing - enable test_suite() in CL, to ensure that 'ut all' keeps passing - record duration of each suite - allow running the tests in random order to tease out dependencies - tweak the output to remove common prefixes - getting rid of bootstd, optee and seame 'ut' subcommands Link: https://lore.kernel.org/r/[email protected]
2025-01-24test: Drop the function for running dm testsSimon Glass
Use the new suite-runner to run these tests instead. Signed-off-by: Simon Glass <[email protected]>
2025-01-24test: Drop the _test suffix on linker listsSimon Glass
Most test suites have a _test suffix. This is not necessary as there is also a ut_ prefix. Drop the suffix so that (with future work) the suite name can be used as the linker-list name. Remove the suffix from the pytest regex as well, moving it to the top of the file, as it is a constant. Signed-off-by: Simon Glass <[email protected]>
2025-01-24test: Rename test suites to match their linker-list nameSimon Glass
Some suites have a different name from that used in the linker list. That makes it hard to programmatically match the name printed when the suite runs to the linker-list name it has. Update the names so they are the same. Signed-off-by: Simon Glass <[email protected]>
2025-01-24test: Rename test_get_state() to ut_get_state()Simon Glass
Rename this function and test_set_state() so use the same ut_ prefix as other functions in ut.h Signed-off-by: Simon Glass <[email protected]>
2025-01-22Merge patch series "upl: Prerequite patches for updated spec"Tom Rini
Simon Glass <[email protected]> says: The current UPL spec[1] has been tidied up and improved over the last year, since U-Boot's original UPL support was written. This series includes some prerequisite patches needed for the real UPL patches. It is split from [2] [1] https://github.com/UniversalPayload/spec/tree/3f1450d [2] https://patchwork.ozlabs.org/project/uboot/list/?series=438574&state=* Link: https://lore.kernel.org/r/[email protected]
2025-01-22dm: core: Provide ofnode_find_subnode_unit()Simon Glass
The ofnode_find_subnode() function currently processes things two different ways, so the treatment of unit addresses differs depending on whether OF_LIVE is enabled or not. Add a new version which uses the ofnode API and add a test to check that unit addresses can be matched correctly. Leave the old function in place for the !OF_LIVE case, to avoid a code-size increase, e.g. on firefly-rk3288 Signed-off-by: Simon Glass <[email protected]>
2025-01-22dm: core: Provide ofnode_name_eq_unit() to accept a unit addressSimon Glass
When a unit-address is provided, use it to match against the node name. Since this increases code size, put it into a separate function. Signed-off-by: Simon Glass <[email protected]>
2025-01-22dm: core: Clarify behaviour of ofnode_name_eq()Simon Glass
This function is somewhat ambiguous, so expand the comments and add a test for the undefined behaviour. Signed-off-by: Simon Glass <[email protected]>
2025-01-14Merge patch series "SMBIOS improvements"Tom Rini
Raymond Mao <[email protected]> says: Motivations for changes: Current SMBIOS library and command-line tool is not fully matching with the requirements: 1. Missing support for other mandatory types (#7, #9, #16, #17, #19). 2. Only a few platforms support SMBIOS node from the device tree. 3. Values of some fields are hardcoded in the library other than fetching from the device hardware. 4. Embedded data with dynamic length is not supported (E.g. Contained Object Handles in Type #2 and Contained Elements in Type #3) Changes: 1. Refactor the SMBIOS library and command-line tool to better align with the SMBIOS spec. 2. Create an arch-specific driver for all aarch64-based platforms to fetch SMBIOS private data from the device hardware (processor and cache). 3. Create a sysinfo driver to poppulate platform SMBIOS private data. 4. Add generic SMBIOS DTS file for arm64 platforms for those common strings and values which cannot be retrieved from the system registers. Vendors can create their own SMBIOS node using this as an example. For those boards without SMBIOS nodes, this DTS file can be included to have a generic SMBIOS information of the system. 5. Add support for Type #7 (Cache Information) and link its handles to Type #4. 6. To minimize size-growth for those platforms which have not sufficient ROM spaces or the platforms which don't need detailed SMBIOS information, new added fields are only being built when kconfig GENERATE_SMBIOS_TABLE_VERBOSE is selected. Once this patch is acceptted, subsequent patch sets will add other missing types (#9, #16, #17, #19). Tests: To test this with QEMU arm64, please follow the guide on dt_qemu.rst to get a merged DT to run with. ``` qemu-system-aarch64 -machine virt -machine dumpdtb=qemu.dtb cat <(dtc -I dtb qemu.dtb) <(dtc -I dtb ./dts/dt.dtb | grep -v /dts-v1/) \ | dtc - -o merged.dtb qemu-system-aarch64 -machine virt -nographic -bios u-boot.bin \ -dtb merged.dtb ``` Link: https://lore.kernel.org/r/[email protected]
2025-01-14test/dm: add sandbox test for sysinfo_get_dataRaymond Mao
Adding sysinfo_get_data into sandbox ut test dm_test_sysinfo. Signed-off-by: Raymond Mao <[email protected]>
2024-12-06Merge patch series "led: update LED boot/activity to new property ↵Tom Rini
implementation" Christian Marangi <[email protected]> says: This series is split in 2 part. While adapting the LED boot and activity code to the new property accepted by Rob in dt-schema repository, a big BUG was discovered. The reason wasn't clear at start and took me some days to figure it out. This was triggered by adding a new phandle in the test.dts to introduce test for the new OPs. This single addition caused the sandbox CI test to fail in the dm_test_ofnode_phandle_ot test. This doesn't make sense as reverting the change made the CI test to correctly finish. Also moving the uboot node down after the first phandle (in test.dts the gpio one) also made the CI test to correctly finish. A little bit of searching and debugging made me realize the parse phandle OPs didn't support other.dts at all and they were still referencing phandle index from test.dts. (more info in the related commit) In short the test was broken all along and was working by pure luck. The first 4 patch address and fix the problem for good. The other 4 patch expand and address the property change for LED boot/activity. Posting in a single series as changes are trivial and just to speedup review process. (and also because the second part depends on the first) All CI tested with azure pipeline. Link: https://lore.kernel.org/r/[email protected]
2024-12-06test: dm: Update test for LED activity and bootChristian Marangi
Update test for LED activity and boot to follow new implementation with property set to the LED node phandle. Also update a copy-paste error in the function name for the activity tests and actually enable the test with the DM_TEST macro. Signed-off-by: Christian Marangi <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2024-12-06test: dm: Add test for ofnode options phandle helperChristian Marangi
Add test for ofnode options phandle helper and add new property in the sandbox test dts. Signed-off-by: Christian Marangi <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2024-12-06test: dm: Expand dm_test_ofnode_phandle(_ot) with new ofnode/tree_parse_phandleChristian Marangi
Expand dm_test_ofnode_phandle(_ot) with new ofnode/tree_parse_phandle() op. Signed-off-by: Christian Marangi <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2024-12-06test: dm: fix broken dm_test_ofnode_phandle_ot and get_by_phandle_otChristian Marangi
Fix broken dm_test_ofnode_phandle_ot test. They never actually worked and were passing test by pure luck by having the same phandle index of test.dts that coincicentally had #gpio-cells in the same index node. It was sufficient to add a phandle to test.dts to make the test fail. To correctly test these feature, make use oif the new OPs oftree to parse phandle. For consistency with the dm_test_ofnode_phandle, rework the test and other.dts to use the same property with the other- prefix to every node. Also fix dm_test_ofnode_get_by_phandle_ot by making it more robust and renaming the phandle property to other-phandle. Signed-off-by: Christian Marangi <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2024-11-25Merge tag 'v2025.01-rc3' into nextTom Rini
Prepare v2025.01-rc3
2024-11-24dm: Add dm_remove_devices_active() for ordered device removalJanne Grunau
This replaces dm_remove_devices_flags() calls in all boot implementations to ensure non vital devices are consistently removed first. All boot implementation except arch/arm/lib/bootm.c currently just call dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL). This can result in crashes when dependencies between devices exists. The driver model's design document describes DM_FLAG_VITAL as "indicates that the device is 'vital' to the operation of other devices". Device removal at boot should follow this. Instead of adding dm_remove_devices_flags() with (DM_REMOVE_ACTIVE_ALL | DM_REMOVE_NON_VITAL) everywhere add dm_remove_devices_active() which does this. Fixes a NULL pointer deref in the apple dart IOMMU driver during EFI boot. The xhci-pci (driver which depends on the IOMMU to work) removes its mapping on removal. This explodes when the IOMMU device was removed first. dm_remove_devices_flags() is kept since it is used for testing of device_remove() calls in dm. Signed-off-by: Janne Grunau <[email protected]>