Commit Graph

9 Commits

Author SHA1 Message Date
Joseph Chen f3ff8d72ff sysmem: fix compile error
Error msg: multiple definition of `sysmem_overflow_check'.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I46de1ef35f2decfab7412c415b7f734e3459e5d9
2020-05-22 16:46:40 +08:00
Joseph Chen acffe33271 lib: sysmem: add sysmem_alloc_by_name() interface
Change-Id: I9e2fd6d99fdc487396dd9619dc54567bcd2ba242
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-07-22 14:23:50 +08:00
Joseph Chen 50226c8f95 lib: sysmem: optimise alloc policy
- Allow request region alloc within the first invisiable region reserved by
  bidram when request region has flags M_ATTR_IGNORE_INVISIBLE. This is a
  workaround for some firmware memory layout, eg: on RK3308-AArch32, the ATF
  region is 0~1M(same as RK3308-AArch64), but the kernel would like to alloc
  at 0x00058000.

- Always make kernel reserved-memory alloc successfully and check overlap
  with invisible and sysmem allocated regions in sysmem_overflow_check()
  before bootm. This makes alloc policy more easier.

Change-Id: I533c710a6e69bd930befda441b9ec64415e3f408
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-07-22 14:23:50 +08:00
Joseph Chen 2c66f6f37e lib: sysmem: add sysmem overflow check support
Change-Id: Ifcb6e8cd59656b133f56115d104a1bba017c7c1b
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-06-26 11:23:12 +08:00
Joseph Chen 3bee194f53 lib: sysmem: add sysmem_can_alloc() interface
Check if the region can be sysmem allocated.

Change-Id: I26a524c1597bee65ab1282da5ec373b9603866ba
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-05-07 19:46:37 +08:00
Joseph Chen dcb404a677 lib: sysmem: add sysmem_alloc() interface
Change-Id: I3ae1fe618ba1bb9c7924bb9816884eb26927dc1e
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-05-07 19:46:37 +08:00
Joseph Chen 6e15146eff lib: sysmem: refactor code
- import memblk id to manage memory blocks;
- change "sysmem_property" to generic "memblock";
- use alloc instead of reserve for all memory blocks;
- clean up and fix some logic;
- add U-Boot cmd for sysmem;

Change-Id: I614223ce3bf97a7b3566412a9d1864fb30b68fd8
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-03-26 11:04:33 +08:00
Joseph Chen 2c9d117912 sysmem: fdt: reserve more CONFIG_SYS_FDT_PAD size for fdt
Sometimes, framework or user would call fdt_increase_size() to update
fdt size, it's better reserve more space to avoid sysmem gives the fdt
region overflow report.

The CONFIG_SYS_FDT_PAD default value is sync with bootm framework
in: common/image-fdt.c

Change-Id: I363e9a4182e13b1628a76666acd8272d25db659d
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-02-19 14:37:36 +08:00
Joseph Chen ffa8f8b76e lib: introduce sysmem for permanent memory management
U-Boot provides MALLOC for runtime temporary memory management and
LMB for bootm memory management. There is not a mechanism for permanent
memory management. so that the memory blocks are easy to overlap with
each other.

What does permanent memory mean ?
 - The memory can't be touched by U-Boot(ATF/OPTEE/SHM/kernel-reserved, etc);
 - The memory occupied even in kernel, such as some firmware load buffer;

This patch introduces sysmem to do permanent memory management, which
implements base on LMB. It provides memory block (pool):
 - init;
 - add;
 - alloc;
 - free;
 - reserve;
 - stat;
 - overflow check;

Here is an example for RK3399 sysmem boot stat(assume the "fdt" region is Overflow)
called by sysmem_dump_all():

sysmem_dump_all:
    ------------------------------------------------------
    memory.rgn[0].base     = 0x00000000
                 .size     = 0x00000000
    memory.rgn[1].base     = 0x00200000
                 .size     = 0x08200000
    memory.rgn[2].base     = 0x0a200000
                 .size     = 0x75e00000

    memory.total           = 0x7e000000 (2016 MiB. 0 KiB)
    ------------------------------------------------------
    reserved.rgn[0].name   = "ATF"
                   .base   = 0x00000000
                   .size   = 0x00100000
    reserved.rgn[1].name   = "PSTORE/ATAGS/SHM"
                   .base   = 0x00100000
                   .size   = 0x00100000
    reserved.rgn[2].name   = "OP-TEE"
                   .base   = 0x08400000
                   .size   = 0x01e00000
    reserved.rgn[3].name   = "U-Boot"
                   .base   = 0x71be03c0
                   .size   = 0x0e41fc40
    reserved.rgn[4].name   = "secure-memory@20000000"
                   .base   = 0x20000000
                   .size   = 0x10000000

    reserved.total         = 0x2041fc40 (516 MiB. 127 KiB)
    ------------------------------------------------------
    allocated.rgn[0].name  = "fdt"      (Overflow)
                    .base  = 0x01f00000
                    .size  = 0x00009704
    allocated.rgn[1].name  = "kernel"
                    .base  = 0x0027c000
                    .size  = 0x0129da04
    allocated.rgn[2].name  = "ramdisk"
                    .base  = 0x0a200000
                    .size  = 0x001e6c04

    allocated.total        = 0x0148dd0c (20 MiB. 567 KiB)
    ------------------------------------------------------
    LMB.reserved[0].base   = 0x00000000
                   .size   = 0x00200000
    LMB.reserved[1].base   = 0x0027c000
                   .size   = 0x0129da04
    LMB.reserved[2].base   = 0x01f00000
                   .size   = 0x00009704
    LMB.reserved[3].base   = 0x08400000
                   .size   = 0x01fe6c04
    LMB.reserved[4].base   = 0x20000000
                   .size   = 0x10000000
    LMB.reserved[5].base   = 0x71be03c0
                   .size   = 0x0e41fc40

    reserved.core.total    = 0x218ad94c (536 MiB. 694 KiB)
    ------------------------------------------------------

Change-Id: If63b7abed2cdd3c054719511fcceed733ddf606d
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
2019-01-24 15:33:12 +08:00