[RFC PATCH 00/31] Make U-Boot memory reservations coherent
Sughosh Ganu
sughosh.ganu at linaro.org
Tue Jun 11 11:01:27 CEST 2024
On Tue, 11 Jun 2024 at 02:35, Tom Rini <trini at konsulko.com> wrote:
>
> On Sat, Jun 08, 2024 at 12:22:09AM +0530, Sughosh Ganu wrote:
>
> > The aim of this patch series is to fix the current state of
> > incoherence between modules when it comes to memory usage. The primary
> > issue that this series is trying to fix is that the EFI memory module
> > which is responsible for allocating and freeing memory, does not have
> > any visibility of the memory that is being used by the LMB
> > module. This is further complicated by the fact that the LMB
> > allocations are caller specific -- the LMB memory map is not global
> > nor persistent. This means that the memory "allocated" by the LMB
> > module might be relevant only for a given function. Hence one of the
> > requirements for making the memory usage visible across modules is to
> > make LMB allocations persistent and global, and then have means to
> > communicate the use of memory across modules.
> >
> > The first set of patches in this series work on making the LMB memory
> > map persistent and global. This is being done keeping in mind the
> > usage of LMB memory by platforms where the same memory region can be
> > used to load multiple different images. What is not allowed is to
> > overwrite memory that has been allocated by the other module,
> > currently the EFI memory module. This is being achieved by introducing
> > a new flag, LMB_NOOVERWRITE, which represents memory which cannot be
> > re-requested once allocated.
> >
> > The second set of patches are then introducing a notification
> > mechanism to indicate any changes to a respective module's memory
> > map. This way, any memory allocation/reservation by a module gets
> > notified to any interested listners, who then update their memory map
> > accordingly, thus keeping memory usage coherent.
> >
> > Todo's
> > ------
> > I have run these patches through CI, but the LMB unit tests need an
> > overhaul. I have currently marked these tests for manual run, as
> > running these would obviously tamper the LMB memory map, thus
> > affecting subsequent tests. The current set of LMB tests are written
> > with the assumption of local LMB memory maps. This needs to be
> > reworked.
> >
> > Secondly, there needs to be a test written for testing the various
> > scenarios of memory being allocated and freed by different modules,
> > namely LMB and EFI. I have written a couple of commands for testing
> > the changes that I have made -- I have also included these temporary
> > commands to assist anyone who might want to test these changes. But I
> > will be working on adding a more comprehensive test.
> >
> > Lastly, as the series touches common code, there is obviously an
> > increase in the size of the image, moreover since the LMB memory is
> > now persistent, and the variables do not reside on the stack. I want
> > to check if there can be ways of decreasing the size impact of the
> > changes.
>
> So, I think you made some changes between your last CI run and posting?
> A ton of platforms (basically anything with EFI_LOADER disabled) fail to
> build now because the two "temp" commits at the end of the series are
> always enabled. I took those commits out and ran my world build size
> check tests and the results are at:
> https://gist.github.com/trini/d42bd392463c39766a5f872c190ccf27
>
> And 64bit ARM looks very reasonable, but I wonder if we can improve the
> 32bit ARM results?
>
> I also did an every commit run for a 32bit ARM board without EFI_LOADER
> (which is going to be the case for size constrained systems) and see
> that the series isn't bisect'able to start with, so please fix that for
> the next go-round. That said:
Yes, I should have mentioned it in the cover letter about issues with
bisectability, primarily because some code under boot/ uses the lmb
API's unconditionally, without having a check for LMB being enabled or
not.
> Summary of 30 commits for 1 boards (1 thread, 12 jobs per thread)
> 01: Added arm64 assembly for examples/api crt0
> 02: lmb: remove the unused lmb_is_reserved() function
> 03: lmb: staticize __lmb_alloc_base()
> arm: (for 1/1 boards) all -16.0 text -16.0
> omapl138_lcdk : all -16 text -16
> u-boot: add: 0/-1, grow: 1/0 bytes: 172/-186 (-14)
> function old new delta
> lmb_alloc_base 40 212 +172
> __lmb_alloc_base 186 - -186
> 04: lmb: make the lmb reservations persistent
> arm: + omapl138_lcdk
> +(omapl138_lcdk) lib/lmb.c: In function 'lmb_dump_all_force':
> +(omapl138_lcdk) lib/lmb.c:64:29: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 64 | lmb_dump_region(&lmb.memory, "memory");
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:65:29: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 65 | lmb_dump_region(&lmb.reserved, "reserved");
> +(omapl138_lcdk) lib/lmb.c: In function 'lmb_add':
> +(omapl138_lcdk) lib/lmb.c:356:39: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 356 | struct lmb_region *_rgn = &lmb.memory;
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c: In function 'lmb_free':
> +(omapl138_lcdk) lib/lmb.c:363:38: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 363 | struct lmb_region *rgn = &lmb.reserved;
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c: In function 'lmb_reserve_flags':
> +(omapl138_lcdk) lib/lmb.c:414:39: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 414 | struct lmb_region *_rgn = &lmb.reserved;
> +(omapl138_lcdk) lib/lmb.c: In function '__lmb_alloc_base':
> +(omapl138_lcdk) lib/lmb.c:451:21: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 451 | for (i = lmb.memory.cnt - 1; i >= 0; i--) {
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:452:42: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 452 | phys_addr_t lmbbase = lmb.memory.region[i].base;
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:453:42: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 453 | phys_size_t lmbsize = lmb.memory.region[i].size;
> +(omapl138_lcdk) lib/lmb.c:469:55: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 469 | rgn = lmb_overlaps_region(&lmb.reserved, base, size);
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:472:56: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 472 | if (lmb_add_region(&lmb.reserved, base,
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:477:39: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 477 | res_base = lmb.reserved.region[rgn].base;
> +(omapl138_lcdk) lib/lmb.c: In function 'lmb_alloc_addr':
> +(omapl138_lcdk) lib/lmb.c:513:39: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 513 | rgn = lmb_overlaps_region(&lmb.memory, base, size);
> +(omapl138_lcdk) lib/lmb.c:519:42: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 519 | if (lmb_addrs_overlap(lmb.memory.region[rgn].base,
> +(omapl138_lcdk) lib/lmb.c:520:42: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 520 | lmb.memory.region[rgn].size,
> +(omapl138_lcdk) lib/lmb.c: In function 'lmb_get_free_size':
> +(omapl138_lcdk) lib/lmb.c:537:39: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 537 | rgn = lmb_overlaps_region(&lmb.memory, addr, 1);
> +(omapl138_lcdk) lib/lmb.c:539:36: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 539 | for (i = 0; i < lmb.reserved.cnt; i++) {
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:540:39: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 540 | if (addr < lmb.reserved.region[i].base) {
> +(omapl138_lcdk) lib/lmb.c:542:43: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 542 | return lmb.reserved.region[i].base - addr;
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:544:32: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 544 | if (lmb.reserved.region[i].base +
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:545:32: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 545 | lmb.reserved.region[i].size > addr) {
> +(omapl138_lcdk) lib/lmb.c:551:27: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 551 | return lmb.memory.region[lmb.memory.cnt - 1].base +
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:551:45: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:552:27: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 552 | lmb.memory.region[lmb.memory.cnt - 1].size - addr;
> +(omapl138_lcdk) lib/lmb.c:552:45: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) lib/lmb.c: In function 'lmb_is_reserved_flags':
> +(omapl138_lcdk) lib/lmb.c:561:28: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 561 | for (i = 0; i < lmb.reserved.cnt; i++) {
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:562:40: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 562 | phys_addr_t upper = lmb.reserved.region[i].base +
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:563:28: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 563 | lmb.reserved.region[i].size - 1;
> +(omapl138_lcdk) lib/lmb.c:564:33: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 564 | if ((addr >= lmb.reserved.region[i].base) && (addr <= upper))
> +(omapl138_lcdk) | ^
> +(omapl138_lcdk) | ->
> +(omapl138_lcdk) lib/lmb.c:565:36: error: 'lmb' is a pointer; did you mean to use '->'?
> +(omapl138_lcdk) 565 | return (lmb.reserved.region[i].flags & flags) == flags;
> +(omapl138_lcdk) make[2]: *** [scripts/Makefile.build:256: lib/lmb.o] Error 1
> +(omapl138_lcdk) make[1]: *** [Makefile:1892: lib] Error 2
> +(omapl138_lcdk) make[3]: *** [scripts/Makefile.build:256: spl/lib/lmb.o] Error 1
> +(omapl138_lcdk) make[2]: *** [scripts/Makefile.spl:538: spl/lib] Error 2
> +(omapl138_lcdk) make[1]: *** [Makefile:2092: spl/u-boot-spl] Error 2
> +(omapl138_lcdk) make: *** [Makefile:177: sub-make] Error 2
> 05: lmb: remove local instances of the lmb structure variable
> -(omapl138_lcdk) lib/lmb.c: In function 'lmb_dump_all_force':
> -(omapl138_lcdk) lib/lmb.c:64:29: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 64 | lmb_dump_region(&lmb.memory, "memory");
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:65:29: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 65 | lmb_dump_region(&lmb.reserved, "reserved");
> -(omapl138_lcdk) lib/lmb.c: In function 'lmb_add':
> -(omapl138_lcdk) lib/lmb.c:356:39: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 356 | struct lmb_region *_rgn = &lmb.memory;
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c: In function 'lmb_free':
> -(omapl138_lcdk) lib/lmb.c:363:38: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 363 | struct lmb_region *rgn = &lmb.reserved;
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c: In function 'lmb_reserve_flags':
> -(omapl138_lcdk) lib/lmb.c:414:39: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 414 | struct lmb_region *_rgn = &lmb.reserved;
> -(omapl138_lcdk) lib/lmb.c: In function '__lmb_alloc_base':
> -(omapl138_lcdk) lib/lmb.c:451:21: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 451 | for (i = lmb.memory.cnt - 1; i >= 0; i--) {
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:452:42: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 452 | phys_addr_t lmbbase = lmb.memory.region[i].base;
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:453:42: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 453 | phys_size_t lmbsize = lmb.memory.region[i].size;
> -(omapl138_lcdk) lib/lmb.c:469:55: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 469 | rgn = lmb_overlaps_region(&lmb.reserved, base, size);
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:472:56: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 472 | if (lmb_add_region(&lmb.reserved, base,
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:477:39: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 477 | res_base = lmb.reserved.region[rgn].base;
> -(omapl138_lcdk) lib/lmb.c: In function 'lmb_alloc_addr':
> -(omapl138_lcdk) lib/lmb.c:513:39: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 513 | rgn = lmb_overlaps_region(&lmb.memory, base, size);
> -(omapl138_lcdk) lib/lmb.c:519:42: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 519 | if (lmb_addrs_overlap(lmb.memory.region[rgn].base,
> -(omapl138_lcdk) lib/lmb.c:520:42: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 520 | lmb.memory.region[rgn].size,
> -(omapl138_lcdk) lib/lmb.c: In function 'lmb_get_free_size':
> -(omapl138_lcdk) lib/lmb.c:537:39: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 537 | rgn = lmb_overlaps_region(&lmb.memory, addr, 1);
> -(omapl138_lcdk) lib/lmb.c:539:36: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 539 | for (i = 0; i < lmb.reserved.cnt; i++) {
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:540:39: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 540 | if (addr < lmb.reserved.region[i].base) {
> -(omapl138_lcdk) lib/lmb.c:542:43: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 542 | return lmb.reserved.region[i].base - addr;
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:544:32: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 544 | if (lmb.reserved.region[i].base +
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:545:32: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 545 | lmb.reserved.region[i].size > addr) {
> -(omapl138_lcdk) lib/lmb.c:551:27: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 551 | return lmb.memory.region[lmb.memory.cnt - 1].base +
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:551:45: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:552:27: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 552 | lmb.memory.region[lmb.memory.cnt - 1].size - addr;
> -(omapl138_lcdk) lib/lmb.c:552:45: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) lib/lmb.c: In function 'lmb_is_reserved_flags':
> -(omapl138_lcdk) lib/lmb.c:561:28: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 561 | for (i = 0; i < lmb.reserved.cnt; i++) {
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:562:40: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 562 | phys_addr_t upper = lmb.reserved.region[i].base +
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:563:28: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 563 | lmb.reserved.region[i].size - 1;
> -(omapl138_lcdk) lib/lmb.c:564:33: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 564 | if ((addr >= lmb.reserved.region[i].base) && (addr <= upper))
> -(omapl138_lcdk) | ^
> -(omapl138_lcdk) | ->
> -(omapl138_lcdk) lib/lmb.c:565:36: error: 'lmb' is a pointer; did you mean to use '->'?
> -(omapl138_lcdk) 565 | return (lmb.reserved.region[i].flags & flags) == flags;
> -(omapl138_lcdk) make[2]: *** [scripts/Makefile.build:256: lib/lmb.o] Error 1
> -(omapl138_lcdk) make[1]: *** [Makefile:1892: lib] Error 2
> -(omapl138_lcdk) make[3]: *** [scripts/Makefile.build:256: spl/lib/lmb.o] Error 1
> -(omapl138_lcdk) make[2]: *** [scripts/Makefile.spl:538: spl/lib] Error 2
> +(omapl138_lcdk) boot/image-board.c: In function 'image_setup_linux':
> +(omapl138_lcdk) boot/image-board.c:907:65: error: 'lmb' undeclared (first use in this function)
> +(omapl138_lcdk) 907 | ret = image_setup_libfdt(images, *of_flat_tree, lmb);
> +(omapl138_lcdk) | ^~~
> +(omapl138_lcdk) boot/image-board.c:907:65: note: each undeclared identifier is reported only once for each function it appears in
> +(omapl138_lcdk) make[2]: *** [scripts/Makefile.build:256: boot/image-board.o] Error 1
> +(omapl138_lcdk) make[1]: *** [Makefile:1892: boot] Error 2
> +(omapl138_lcdk) make[3]: *** [scripts/Makefile.build:257: spl/boot/image-board.o] Error 1
> +(omapl138_lcdk) make[2]: *** [scripts/Makefile.spl:538: spl/boot] Error 2
> 06: lmb: pass a flag to image_setup_libfdt() for lmb reservations
> arm: omapl138_lcdk
> -(omapl138_lcdk) boot/image-board.c: In function 'image_setup_linux':
> -(omapl138_lcdk) boot/image-board.c:907:65: error: 'lmb' undeclared (first use in this function)
> -(omapl138_lcdk) 907 | ret = image_setup_libfdt(images, *of_flat_tree, lmb);
> -(omapl138_lcdk) | ^~~
> -(omapl138_lcdk) boot/image-board.c:907:65: note: each undeclared identifier is reported only once for each function it appears in
> -(omapl138_lcdk) make[2]: *** [scripts/Makefile.build:256: boot/image-board.o] Error 1
> -(omapl138_lcdk) make[1]: *** [Makefile:1892: boot] Error 2
> -(omapl138_lcdk) make[3]: *** [scripts/Makefile.build:257: spl/boot/image-board.o] Error 1
> -(omapl138_lcdk) make[2]: *** [scripts/Makefile.spl:538: spl/boot] Error 2
> -(omapl138_lcdk) make[1]: *** [Makefile:2092: spl/u-boot-spl] Error 2
> -(omapl138_lcdk) make: *** [Makefile:177: sub-make] Error 2
> 07: lmb: reserve and add common memory regions post relocation
> arm: + omapl138_lcdk
> +(omapl138_lcdk) common/board_r.c: In function 'initr_lmb':
> +(omapl138_lcdk) common/board_r.c:564:9: error: implicit declaration of function 'lmb_add_memory' [-Werror=implicit-function-declaration]
> +(omapl138_lcdk) 564 | lmb_add_memory(gd->bd);
> +(omapl138_lcdk) | ^~~~~~~~~~~~~~
> +(omapl138_lcdk) cc1: all warnings being treated as errors
> +(omapl138_lcdk) make[2]: *** [scripts/Makefile.build:256: common/board_r.o] Error 1
> +(omapl138_lcdk) make[1]: *** [Makefile:1892: common] Error 2
> +(omapl138_lcdk) make: *** [Makefile:177: sub-make] Error 2
> 08: lmb: remove lmb_init_and_reserve_range() function
> 09: lmb: replcace the lmb_init_and_reserve() function
> arm: omapl138_lcdk
> -(omapl138_lcdk) common/board_r.c: In function 'initr_lmb':
> -(omapl138_lcdk) common/board_r.c:564:9: error: implicit declaration of function 'lmb_add_memory' [-Werror=implicit-function-declaration]
> -(omapl138_lcdk) 564 | lmb_add_memory(gd->bd);
> -(omapl138_lcdk) | ^~~~~~~~~~~~~~
> -(omapl138_lcdk) cc1: all warnings being treated as errors
> -(omapl138_lcdk) make[2]: *** [scripts/Makefile.build:256: common/board_r.o] Error 1
> -(omapl138_lcdk) make[1]: *** [Makefile:1892: common] Error 2
> -(omapl138_lcdk) make: *** [Makefile:177: sub-make] Error 2
> 10: lmb: allow for resizing lmb regions
> arm: (for 1/1 boards) all +224.0 text +224.0
> omapl138_lcdk : all +224 text +224
> u-boot: add: 0/0, grow: 1/0 bytes: 224/0 (224)
> function old new delta
> lmb_add_region_flags 416 640 +224
> 11: event: add events to notify memory map changes
> 12: lib: Kconfig: add a config symbol for getting memory map updates
> 13: add a function to check if an address is in RAM memory
> 14: efi_memory: notify of any changes to the EFI memory map
> 15: lmb: notify of any changes to the LMB memory map
> arm: (for 1/1 boards) all +8.0 text +8.0
> omapl138_lcdk : all +8 text +8
> u-boot: add: 0/0, grow: 2/0 bytes: 12/0 (12)
> function old new delta
> lmb_reserve_flags 32 40 +8
> lmb_free 192 196 +4
> 16: efi_memory: add an event handler to update memory map
> 17: lmb: add an event handler to update memory map
> arm: (for 1/1 boards) all +349.0 rodata +61.0 text +288.0
> omapl138_lcdk : all +349 rodata +61 text +288
> u-boot: add: 3/0, grow: 3/0 bytes: 232/0 (232)
> function old new delta
> event_notify - 104 +104
> initcall_run_list 96 144 +48
> image_setup_libfdt 236 284 +48
> event_notify_null - 18 +18
> event_type_name - 8 +8
> run_main_loop 10 16 +6
> 18: lmb: remove call to efi_lmb_reserve()
> 19: sandbox: iommu: remove lmb allocation in the driver
> 20: zynq: lmb: do not add to lmb map before relocation
> 21: test: cedit: use allocated address for reading file
> 22: test: event: update the expected event dump output
> 23: test: lmb: run the LMB tests only on sandbox
> 24: test: lmb: initialise the lmb structure before tests
> 25: test: lmb: add a test case for checking overlapping region add
> 26: test: lmb: adjust the test case to handle overlapping regions
> 27: test: lmb: run lmb tests only manually
> 28: test: bdinfo: dump the global LMB memory map
> 29: cmd: bdinfo: only dump the current LMB memory
> arm: (for 1/1 boards) all -8.0 text -8.0
> omapl138_lcdk : all -8 text -8
> u-boot: add: 0/0, grow: 0/-1 bytes: 0/-8 (-8)
> function old new delta
> do_bdinfo 472 464 -8
> 30: temp: mx6sabresd: bump up the size limit of the board
>
> So my first thought is, do we really need the event notifier framework
> in the case where it's NOT also using EFI_LOADER? Or is perhaps that
> Kconfig logic not quite right?
So, I had actually tried putting all the notification code under the
newly introduced config symbol, but I get build warnings on sandbox
spl and sandbox vpl builds, which result in CI failures. I would have
thought that having the function call under a CONFIG_IS_ENABLED check
would result in the linker to discard the function call. But that is
not happening. I will check if this can be handled by introducing SPL,
TPL and VPL variants of this config.
-sughosh
>
> --
> Tom
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