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habanalabs/gaudi2: don't enable entries in the MSIX_GW table

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User should use the virtual MSI-X doorbell to generate interrupts from
the device, so there is no need to enable entries in the MSIX_GW table.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Tomer Tayar 2022-10-20 12:05:09 +03:00 committed by Oded Gabbay
parent 24c983c88f
commit 2c77ec14c2
1 changed files with 0 additions and 26 deletions
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26
drivers/misc/habanalabs/gaudi2/gaudi2.c
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@ -4695,30 +4695,6 @@ static void gaudi2_init_dec(struct hl_device *hdev)
}
}
static void gaudi2_init_msix_gw_table(struct hl_device *hdev)
{
u32 first_reg_offset, last_reg_offset, msix_gw_table_base;
u8 first_bit, last_bit;
int i;
msix_gw_table_base = mmPCIE_WRAP_MSIX_GW_TABLE_0;
first_reg_offset = (GAUDI2_IRQ_NUM_USER_FIRST >> 5) << 2;
first_bit = GAUDI2_IRQ_NUM_USER_FIRST % 32;
last_reg_offset = (GAUDI2_IRQ_NUM_USER_LAST >> 5) << 2;
last_bit = GAUDI2_IRQ_NUM_USER_LAST % 32;
if (first_reg_offset == last_reg_offset) {
WREG32(msix_gw_table_base + first_reg_offset, GENMASK(last_bit, first_bit));
return;
}
WREG32(msix_gw_table_base + first_reg_offset, GENMASK(31, first_bit));
WREG32(msix_gw_table_base + last_reg_offset, GENMASK(last_bit, 0));
for (i = first_reg_offset + 4; i < last_reg_offset ; i += 4)
WREG32(msix_gw_table_base + i, 0xFFFFFFFF);
}
static int gaudi2_mmu_update_asid_hop0_addr(struct hl_device *hdev,
u32 stlb_base, u32 asid, u64 phys_addr)
{
@ -5232,8 +5208,6 @@ static int gaudi2_hw_init(struct hl_device *hdev)
return rc;
}
gaudi2_init_msix_gw_table(hdev);
gaudi2_init_scrambler_hbm(hdev);
gaudi2_init_kdma(hdev);