Hi,

On 24/07/2024 08:02, Sughosh Ganu wrote:
With the changes to make the LMB reservations persistent, the common
memory regions are being added during board init. Remove the
now superfluous lmb_init_and_reserve() function.

This patch comes before the patches doing these reservations in generic code. I think this could break bisecting.

Could you instead make the switch over to the generic code atomic?

Kind regards,

Signed-off-by: Sughosh Ganu <sughosh.g...@linaro.org>
Reviewed-by: Simon Glass <s...@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodi...@linaro.org>
---
Changes since rfc: None

  arch/arm/mach-apple/board.c          |  2 --
  arch/arm/mach-snapdragon/board.c     |  2 --
  arch/arm/mach-stm32mp/stm32mp1/cpu.c |  3 ---
  cmd/bdinfo.c                         |  1 -
  cmd/load.c                           |  2 --
  fs/fs.c                              |  1 -
  include/lmb.h                        |  1 -
  lib/lmb.c                            | 13 -------------
  net/tftp.c                           |  2 --
  net/wget.c                           |  2 --
  test/cmd/bdinfo.c                    |  9 ---------
  11 files changed, 38 deletions(-)

diff --git a/arch/arm/mach-apple/board.c b/arch/arm/mach-apple/board.c
index 213390d6e8..0b6d290b8a 100644
--- a/arch/arm/mach-apple/board.c
+++ b/arch/arm/mach-apple/board.c
@@ -775,8 +775,6 @@ int board_late_init(void)
  {
        u32 status = 0;
- lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
-
        /* somewhat based on the Linux Kernel boot requirements:
         * align by 2M and maximal FDT size 2M
         */
diff --git a/arch/arm/mach-snapdragon/board.c b/arch/arm/mach-snapdragon/board.c
index a63c8bec45..22a7d2a637 100644
--- a/arch/arm/mach-snapdragon/board.c
+++ b/arch/arm/mach-snapdragon/board.c
@@ -282,8 +282,6 @@ int board_late_init(void)
  {
        u32 status = 0;
- lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
-
        /* We need to be fairly conservative here as we support boards with 
just 1G of TOTAL RAM */
        status |= env_set_hex("kernel_addr_r", addr_alloc(SZ_128M));
        status |= env_set_hex("ramdisk_addr_r", addr_alloc(SZ_128M));
diff --git a/arch/arm/mach-stm32mp/stm32mp1/cpu.c 
b/arch/arm/mach-stm32mp/stm32mp1/cpu.c
index a913737342..64480da9f8 100644
--- a/arch/arm/mach-stm32mp/stm32mp1/cpu.c
+++ b/arch/arm/mach-stm32mp/stm32mp1/cpu.c
@@ -141,9 +141,6 @@ int mach_cpu_init(void)
void enable_caches(void)
  {
-       /* parse device tree when data cache is still activated */
-       lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
-
        /* I-cache is already enabled in start.S: icache_enable() not needed */
/* deactivate the data cache, early enabled in arch_cpu_init() */
diff --git a/cmd/bdinfo.c b/cmd/bdinfo.c
index b31e0208df..3c40dee143 100644
--- a/cmd/bdinfo.c
+++ b/cmd/bdinfo.c
@@ -162,7 +162,6 @@ static int bdinfo_print_all(struct bd_info *bd)
        bdinfo_print_num_l("multi_dtb_fit", (ulong)gd->multi_dtb_fit);
  #endif
        if (IS_ENABLED(CONFIG_LMB) && gd->fdt_blob) {
-               lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
                lmb_dump_all_force();
                if (IS_ENABLED(CONFIG_OF_REAL))
                        printf("devicetree  = %s\n", fdtdec_get_srcname());
diff --git a/cmd/load.c b/cmd/load.c
index 56da3a4c5d..20d802502a 100644
--- a/cmd/load.c
+++ b/cmd/load.c
@@ -153,8 +153,6 @@ static ulong load_serial(long offset)
        int     line_count =  0;
        long ret;
- lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
-
        while (read_record(record, SREC_MAXRECLEN + 1) >= 0) {
                type = srec_decode(record, &binlen, &addr, binbuf);
diff --git a/fs/fs.c b/fs/fs.c
index 3fb00590be..4bc28d1dff 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -549,7 +549,6 @@ static int fs_read_lmb_check(const char *filename, ulong 
addr, loff_t offset,
        if (len && len < read_len)
                read_len = len;
- lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
        lmb_dump_all();
if (lmb_alloc_addr(addr, read_len) == addr)
diff --git a/include/lmb.h b/include/lmb.h
index 77e2a23c0d..50977e6561 100644
--- a/include/lmb.h
+++ b/include/lmb.h
@@ -37,7 +37,6 @@ struct lmb_region {
        enum lmb_flags flags;
  };
-void lmb_init_and_reserve(struct bd_info *bd, void *fdt_blob);
  void lmb_init_and_reserve_range(phys_addr_t base, phys_size_t size,
                                void *fdt_blob);
diff --git a/lib/lmb.c b/lib/lmb.c
index db0874371a..f1142033ef 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -226,19 +226,6 @@ static void lmb_reserve_common(void *fdt_blob)
                efi_lmb_reserve();
  }
-/* Initialize the struct, add memory and call arch/board reserve functions */
-void lmb_init_and_reserve(struct bd_info *bd, void *fdt_blob)
-{
-       int i;
-
-       for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
-               if (bd->bi_dram[i].size)
-                       lmb_add(bd->bi_dram[i].start, bd->bi_dram[i].size);
-       }
-
-       lmb_reserve_common(fdt_blob);
-}
-
  /**
   * lmb_add_memory() - Add memory range for LMB allocations
   *
diff --git a/net/tftp.c b/net/tftp.c
index f841f6b701..9b1f06ba8e 100644
--- a/net/tftp.c
+++ b/net/tftp.c
@@ -711,8 +711,6 @@ static int tftp_init_load_addr(void)
        if (CONFIG_IS_ENABLED(LMB)) {
                phys_size_t max_size;
- lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
-
                max_size = lmb_get_free_size(image_load_addr);
                if (!max_size)
                        return -1;
diff --git a/net/wget.c b/net/wget.c
index b8ea43e7f0..82a7e30ea7 100644
--- a/net/wget.c
+++ b/net/wget.c
@@ -75,8 +75,6 @@ static int wget_init_load_size(void)
  {
        phys_size_t max_size;
- lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
-
        max_size = lmb_get_free_size(image_load_addr);
        if (!max_size)
                return -1;
diff --git a/test/cmd/bdinfo.c b/test/cmd/bdinfo.c
index 34d2b141d8..1cd81a195b 100644
--- a/test/cmd/bdinfo.c
+++ b/test/cmd/bdinfo.c
@@ -113,14 +113,6 @@ static int lmb_test_dump_region(struct unit_test_state 
*uts,
                end = base + size - 1;
                flags = rgn->region[i].flags;
- /*
-                * this entry includes the stack (get_sp()) on many platforms
-                * so will different each time lmb_init_and_reserve() is called.
-                * We could instead have the bdinfo command put its lmb region
-                * in a known location, so we can check it directly, rather than
-                * calling lmb_init_and_reserve() to create a new (and hopefully
-                * identical one). But for now this seems good enough.
-                */
                if (!IS_ENABLED(CONFIG_SANDBOX) && i == 3) {
                        ut_assert_nextlinen(" %s[%d]\t[", name, i);
                        continue;
@@ -200,7 +192,6 @@ static int bdinfo_test_all(struct unit_test_state *uts)
        if (IS_ENABLED(CONFIG_LMB) && gd->fdt_blob) {
                struct lmb lmb;
- lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
                ut_assertok(lmb_test_dump_all(uts, &lmb));
                if (IS_ENABLED(CONFIG_OF_REAL))
                        ut_assert_nextline("devicetree  = %s", 
fdtdec_get_srcname());

--
// Caleb (they/them)

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