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habanalabs: use do_div for 64-bit divisions 

This patch fix compilation error in 32-bit ARM architecture regarding
division of 2 64-bit variables.

Use the kernel do_div() macro, which is implemented per architecture, for
doing these divisions instead of using the / operator.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oded Gabbay 2019-03-01 14:21:11 +02:00 committed by Greg Kroah-Hartman
parent 91d3f8a629
commit b3bf147bd6
1 changed files with 6 additions and 6 deletions
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12
drivers/misc/habanalabs/mmu.c
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@ -261,9 +261,9 @@ int hl_mmu_ctx_init(struct hl_ctx *ctx)
!hdev->dram_default_page_mapping)
return 0;
num_of_hop3 = (prop->dram_size_for_default_page_mapping /
prop->dram_page_size) /
PTE_ENTRIES_IN_HOP;
num_of_hop3 = prop->dram_size_for_default_page_mapping;
do_div(num_of_hop3, prop->dram_page_size);
do_div(num_of_hop3, PTE_ENTRIES_IN_HOP);
/* add hop1 and hop2 */
total_hops = num_of_hop3 + 2;
@ -378,9 +378,9 @@ void hl_mmu_ctx_fini(struct hl_ctx *ctx)
if (hdev->dram_supports_virtual_memory &&
hdev->dram_default_page_mapping) {
num_of_hop3 = (prop->dram_size_for_default_page_mapping /
prop->dram_page_size) /
PTE_ENTRIES_IN_HOP;
num_of_hop3 = prop->dram_size_for_default_page_mapping;
do_div(num_of_hop3, prop->dram_page_size);
do_div(num_of_hop3, PTE_ENTRIES_IN_HOP);
/* add hop1 and hop2 */
total_hops = num_of_hop3 + 2;