diff options
| author | Dalit Ben Zoor <dbenzoor@habana.ai> | 2019-03-21 09:54:49 +0200 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2019-03-21 09:54:49 +0200 |
| commit | 9354c29ed52762e9645d6dc2631045228ed10fbd (patch) | |
| tree | 2619a84c816c376cb916d627545b51f4f64a2fd8 /drivers/misc | |
| parent | a691a1ebb59e7f2a159df8d3c693e2235c5de9dd (diff) | |
habanalabs: allow user to modify TPC clock relaxation value
This patch allows the user to modify the TPC PLL clock relaxation value
on-the-fly in order to reduce power consumption.
To enable this, the patch removes the protection from the specific
register that controls this behavior.
Signed-off-by: Dalit Ben Zoor <dbenzoor@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya_security.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/goya/goya_security.c b/drivers/misc/habanalabs/goya/goya_security.c index 9d2dee67e46f..d95d1b2f860d 100644 --- a/drivers/misc/habanalabs/goya/goya_security.c +++ b/drivers/misc/habanalabs/goya/goya_security.c @@ -2160,6 +2160,8 @@ static void goya_init_protection_bits(struct hl_device *hdev) * Bits 7-11 represents the word offset inside the 128 bytes. * Bits 2-6 represents the bit location inside the word. */ + u32 pb_addr, mask; + u8 word_offset; goya_pb_set_block(hdev, mmPCI_NRTR_BASE); goya_pb_set_block(hdev, mmPCI_RD_REGULATOR_BASE); @@ -2238,6 +2240,14 @@ static void goya_init_protection_bits(struct hl_device *hdev) goya_pb_set_block(hdev, mmPCIE_AUX_BASE); goya_pb_set_block(hdev, mmPCIE_DB_RSV_BASE); goya_pb_set_block(hdev, mmPCIE_PHY_BASE); + goya_pb_set_block(hdev, mmTPC0_NRTR_BASE); + goya_pb_set_block(hdev, mmTPC_PLL_BASE); + + pb_addr = (mmTPC_PLL_CLK_RLX_0 & ~0xFFF) + PROT_BITS_OFFS; + word_offset = ((mmTPC_PLL_CLK_RLX_0 & PROT_BITS_OFFS) >> 7) << 2; + mask = 1 << ((mmTPC_PLL_CLK_RLX_0 & 0x7C) >> 2); + + WREG32(pb_addr + word_offset, mask); goya_init_mme_protection_bits(hdev); @@ -2295,8 +2305,8 @@ void goya_init_security(struct hl_device *hdev) u32 lbw_rng10_base = 0xFCC60000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; u32 lbw_rng10_mask = 0xFFFE0000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; - u32 lbw_rng11_base = 0xFCE00000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; - u32 lbw_rng11_mask = 0xFFFFC000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; + u32 lbw_rng11_base = 0xFCE02000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; + u32 lbw_rng11_mask = 0xFFFFE000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; u32 lbw_rng12_base = 0xFE484000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; u32 lbw_rng12_mask = 0xFFFFF000 & DMA_MACRO_LBW_RANGE_BASE_R_MASK; |