On 04.01.22 08:42, Patrice Chotard wrote:
When OF_LIVE flag is enabled on a 64 bits platform, there is an issue when dev_read_addr() is called and need to perform an address translation using __of_translate_address().
In case of error, __of_translate_address() return's value is OF_BAD_ADDR (wich is defined in include/dm/of.h to ((u64)-1) = 0xffffffffffffffff). The return value of dev_read_addr() is often compared to FDT_ADDR_T_NONE which is defined as (-1U) = 0xffffffff. In this case the comparison is always false.
To fix this issue, define FDT_ADDR_T_NONE to (ulong)(-1) in case of AARCH64. Update accordingly related tests.
Signed-off-by: Patrice Chotard patrice.chotard@foss.st.com
Changes in v2:
- define FDT_ADDR_T_NONE as ((ulong)(-1)) and keep OF_BAD_ADDR unchanged
include/fdtdec.h | 5 ++++- test/dm/ofnode.c | 2 +- test/dm/pci.c | 4 ++-- test/dm/test-fdt.c | 2 +- 4 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/include/fdtdec.h b/include/fdtdec.h index 6c7ab887b2..e9e2916d6e 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -24,16 +24,19 @@ typedef phys_addr_t fdt_addr_t; typedef phys_size_t fdt_size_t;
-#define FDT_ADDR_T_NONE (-1U) #define FDT_SIZE_T_NONE (-1U)
#ifdef CONFIG_PHYS_64BIT +#define FDT_ADDR_T_NONE ((ulong)(-1))
#define fdt_addr_to_cpu(reg) be64_to_cpu(reg) #define fdt_size_to_cpu(reg) be64_to_cpu(reg) #define cpu_to_fdt_addr(reg) cpu_to_be64(reg) #define cpu_to_fdt_size(reg) cpu_to_be64(reg) typedef fdt64_t fdt_val_t; #else +#define FDT_ADDR_T_NONE (-1U)
#define fdt_addr_to_cpu(reg) be32_to_cpu(reg) #define fdt_size_to_cpu(reg) be32_to_cpu(reg) #define cpu_to_fdt_addr(reg) cpu_to_be32(reg) diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c index cea0746bb3..e6c925eba6 100644 --- a/test/dm/ofnode.c +++ b/test/dm/ofnode.c @@ -286,7 +286,7 @@ static int dm_test_ofnode_get_reg(struct unit_test_state *uts) ut_assert(ofnode_valid(node)); addr = ofnode_get_addr(node); size = ofnode_get_size(node);
- ut_asserteq(FDT_ADDR_T_NONE, addr);
ut_asserteq_64(FDT_ADDR_T_NONE, addr); ut_asserteq(FDT_SIZE_T_NONE, size);
node = ofnode_path("/translation-test@8000/noxlatebus@3,300/dev@42");
diff --git a/test/dm/pci.c b/test/dm/pci.c index fa2e4a8559..00e4440a9d 100644 --- a/test/dm/pci.c +++ b/test/dm/pci.c @@ -331,10 +331,10 @@ static int dm_test_pci_addr_live(struct unit_test_state *uts) struct udevice *swap1f, *swap1;
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap1f));
- ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1f));
ut_asserteq_64(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1f));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1, 0), &swap1));
- ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1));
ut_asserteq_64(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1));
return 0;
} diff --git a/test/dm/test-fdt.c b/test/dm/test-fdt.c index 8866d4d959..e1de066226 100644 --- a/test/dm/test-fdt.c +++ b/test/dm/test-fdt.c @@ -768,7 +768,7 @@ static int dm_test_fdt_livetree_writing(struct unit_test_state *uts) /* Test setting generic properties */
/* Non-existent in DTB */
- ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr(dev));
- ut_asserteq_64(FDT_ADDR_T_NONE, dev_read_addr(dev)); /* reg = 0x42, size = 0x100 */ ut_assertok(ofnode_write_prop(node, "reg", 8, "\x00\x00\x00\x42\x00\x00\x01\x00"));
Since this commit, I'm getting this dev_get_priv warning:
[...] U-Boot 2022.01-00766-g9876ae7db6d-dirty (Feb 14 2022 - 16:15:21 +0100)
Model: SIMATIC IOT2050 Basic DRAM: 1 GiB Core: 94 devices, 28 uclasses, devicetree: separate WDT: Not starting watchdog@40610000 MMC: mmc@4fa0000: 0 Loading Environment from SPIFlash... SF: Detected w25q128 with page size 256 Bytes, erase size 64 KiB, total 16 MiB drivers/dma/ti/k3-udma.c:1744 __dev_get_priv: null device drivers/dma/ti/k3-udma.c:1744 __dev_get_priv: null device OK In: serial Out: serial Err: serial Net: No ethernet found. Hit any key to stop autoboot: 0
(I've instrumented dev_get_priv to tell me file:line)
Is that a sleeping problem surfaced by the commit or a real regression? I can boot, though.
Jan