diff options
| author | Ofir Bitton <obitton@habana.ai> | 2022-09-15 11:10:56 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2022-09-19 15:10:01 +0300 |
| commit | bb677d527e14184d89012ce332128f3767fa9925 (patch) | |
| tree | 067420f328fef4b494c3167a2c2eea73118f289c /drivers/misc/habanalabs/gaudi2/gaudi2_security.c | |
| parent | 4f3ce5e0d0f85d6be0a2bc3a2aa75ba3b649c7c6 (diff) | |
| download | linux-bb677d527e14184d89012ce332128f3767fa9925.tar.xz | |
habanalabs/gaudi2: allow user to flush PCIE by read
In order for the user to flush PCIE he needs to read some register
from PCIE block. The chosen register is SPECIAL_GLBL_SPARE_0 and
hence needs to be unsecured.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/gaudi2/gaudi2_security.c')
| -rw-r--r-- | drivers/misc/habanalabs/gaudi2/gaudi2_security.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2_security.c b/drivers/misc/habanalabs/gaudi2/gaudi2_security.c index c4165db06db2..c6906fb14229 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2_security.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2_security.c @@ -2559,6 +2559,10 @@ static const u32 gaudi2_pb_pcie[] = { mmPCIE_WRAP_BASE, }; +static const u32 gaudi2_pb_pcie_unsecured_regs[] = { + mmPCIE_WRAP_SPECIAL_GLBL_SPARE_0, +}; + static const u32 gaudi2_pb_thermal_sensor0[] = { mmDCORE0_XFT_BASE, mmDCORE0_TSTDVS_BASE, @@ -3418,7 +3422,8 @@ static int gaudi2_init_protection_bits(struct hl_device *hdev) rc |= hl_init_pb(hdev, HL_PB_SHARED, HL_PB_NA, HL_PB_SINGLE_INSTANCE, HL_PB_NA, gaudi2_pb_pcie, ARRAY_SIZE(gaudi2_pb_pcie), - NULL, HL_PB_NA); + gaudi2_pb_pcie_unsecured_regs, + ARRAY_SIZE(gaudi2_pb_pcie_unsecured_regs)); /* Thermal Sensor. * Skip when security is enabled in F/W, because the blocks are protected by privileged RR. |