diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2023-12-14 10:38:06 +0200 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2024-02-26 09:30:40 +0200 |
| commit | d0df8a35a76d310fe0a06eaf1ac1ade98f4d05e4 (patch) | |
| tree | dc2b939009c007cf6eff0d68bbe466c6c504f370 /drivers/accel | |
| parent | 8c075401f2dbda43600c61f780a165abde77877a (diff) | |
accel/habanalabs: fix DRAM BAR base address calculation
When the DRAM region size in the BAR is not a power of 2, calculating
the corresponding BAR base address should be done using the offset from
the DRAM start address, and not using directly the DRAM address.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/accel')
| -rw-r--r-- | drivers/accel/habanalabs/common/device.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/accel/habanalabs/common/device.c b/drivers/accel/habanalabs/common/device.c index 5eacbc73f1bb..5c46826e3659 100644 --- a/drivers/accel/habanalabs/common/device.c +++ b/drivers/accel/habanalabs/common/device.c @@ -55,7 +55,8 @@ static u64 hl_set_dram_bar(struct hl_device *hdev, u64 addr, struct pci_mem_regi if (is_power_of_2(prop->dram_pci_bar_size)) bar_base_addr = addr & ~(prop->dram_pci_bar_size - 0x1ull); else - bar_base_addr = DIV_ROUND_DOWN_ULL(addr, prop->dram_pci_bar_size) * + bar_base_addr = region->region_base + + div64_u64((addr - region->region_base), prop->dram_pci_bar_size) * prop->dram_pci_bar_size; old_base = hdev->asic_funcs->set_dram_bar_base(hdev, bar_base_addr); |