Set protection bits for some tpc registers that should to be
secured.
Signed-off-by: Dalit Ben Zoor <[email protected]>
---
drivers/misc/habanalabs/goya/goya_security.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/misc/habanalabs/goya/goya_security.c
b/drivers/misc/habanalabs/goya/goya_security.c
index d95d1b2f860d..d6ec12b3e692 100644
--- a/drivers/misc/habanalabs/goya/goya_security.c
+++ b/drivers/misc/habanalabs/goya/goya_security.c
@@ -677,6 +677,17 @@ static void goya_init_tpc_protection_bits(struct hl_device
*hdev)
goya_pb_set_block(hdev, mmTPC0_RD_REGULATOR_BASE);
goya_pb_set_block(hdev, mmTPC0_WR_REGULATOR_BASE);
+ pb_addr = (mmTPC0_CFG_SEMAPHORE & ~0xFFF) + PROT_BITS_OFFS;
+ word_offset = ((mmTPC0_CFG_SEMAPHORE & PROT_BITS_OFFS) >> 7) << 2;
+
+ mask = 1 << ((mmTPC0_CFG_SEMAPHORE & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_VFLAGS & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_SFLAGS & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_LFSR_POLYNOM & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_STATUS & 0x7F) >> 2);
+
+ WREG32(pb_addr + word_offset, ~mask);
+
pb_addr = (mmTPC0_CFG_CFG_BASE_ADDRESS_HIGH & ~0xFFF) + PROT_BITS_OFFS;
word_offset = ((mmTPC0_CFG_CFG_BASE_ADDRESS_HIGH &
PROT_BITS_OFFS) >> 7) << 2;
@@ -684,6 +695,11 @@ static void goya_init_tpc_protection_bits(struct hl_device
*hdev)
mask |= 1 << ((mmTPC0_CFG_CFG_SUBTRACT_VALUE & 0x7F) >> 2);
mask |= 1 << ((mmTPC0_CFG_SM_BASE_ADDRESS_LOW & 0x7F) >> 2);
mask |= 1 << ((mmTPC0_CFG_SM_BASE_ADDRESS_HIGH & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_CFG_SUBTRACT_VALUE & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_TPC_STALL & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_MSS_CONFIG & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_TPC_INTR_CAUSE & 0x7F) >> 2);
+ mask |= 1 << ((mmTPC0_CFG_TPC_INTR_MASK & 0x7F) >> 2);
WREG32(pb_addr + word_offset, ~mask);
--
2.17.1
