From: Dani Liberman <dliber...@habana.ai>
It is possible for FW to request reserved space in dram.
If the device supports this option, it will retrieve the size from the
f/w and will reserve it.
Currently we add the common code infrastructure to support it.
Signed-off-by: Dani Liberman <dliber...@habana.ai>
Reviewed-by: Oded Gabbay <ogab...@kernel.org>
Signed-off-by: Oded Gabbay <ogab...@kernel.org>
---
drivers/accel/habanalabs/common/firmware_if.c | 5 +++++
drivers/accel/habanalabs/common/habanalabs.h | 4 ++++
drivers/accel/habanalabs/include/common/hl_boot_if.h | 5 +++++
3 files changed, 14 insertions(+)
diff --git a/drivers/accel/habanalabs/common/firmware_if.c
b/drivers/accel/habanalabs/common/firmware_if.c
index c7da69dbfa0a..2bc775d29854 100644
--- a/drivers/accel/habanalabs/common/firmware_if.c
+++ b/drivers/accel/habanalabs/common/firmware_if.c
@@ -2783,6 +2783,11 @@ static int hl_fw_dynamic_init_cpu(struct hl_device *hdev,
hdev->decoder_binning, hdev->rotator_binning);
}
+ if (hdev->asic_prop.support_dynamic_resereved_fw_size) {
+ hdev->asic_prop.reserved_fw_mem_size =
+
le32_to_cpu(fw_loader->dynamic_loader.comm_desc.rsvd_mem_size_mb);
+ }
+
return 0;
}
diff --git a/drivers/accel/habanalabs/common/habanalabs.h
b/drivers/accel/habanalabs/common/habanalabs.h
index 16bea0a3f3a4..4fecd300b8dd 100644
--- a/drivers/accel/habanalabs/common/habanalabs.h
+++ b/drivers/accel/habanalabs/common/habanalabs.h
@@ -641,6 +641,7 @@ struct hl_hints_range {
* @glbl_err_cause_num: global err cause number.
* @hbw_flush_reg: register to read to generate HBW flush. value of 0 means
HBW flush is
* not supported.
+ * @reserved_fw_mem_size: size in MB of dram memory reserved for FW.
* @collective_first_sob: first sync object available for collective use
* @collective_first_mon: first monitor available for collective use
* @sync_stream_first_sob: first sync object available for sync stream use
@@ -689,6 +690,7 @@ struct hl_hints_range {
* @dma_mask: the dma mask to be set for this device
* @supports_advanced_cpucp_rc: true if new cpucp opcodes are supported.
* @supports_engine_modes: true if changing engines/engine_cores modes is
supported.
+ * @support_dynamic_resereved_fw_size: true if we support dynamic reserved
size for fw.
*/
struct asic_fixed_properties {
struct hw_queue_properties *hw_queues_props;
@@ -772,6 +774,7 @@ struct asic_fixed_properties {
u32 num_of_special_blocks;
u32 glbl_err_cause_num;
u32 hbw_flush_reg;
+ u32 reserved_fw_mem_size;
u16 collective_first_sob;
u16 collective_first_mon;
u16 sync_stream_first_sob;
@@ -808,6 +811,7 @@ struct asic_fixed_properties {
u8 dma_mask;
u8 supports_advanced_cpucp_rc;
u8 supports_engine_modes;
+ u8 support_dynamic_resereved_fw_size;
};
/**
diff --git a/drivers/accel/habanalabs/include/common/hl_boot_if.h
b/drivers/accel/habanalabs/include/common/hl_boot_if.h
index cff79f7f9f75..7de8a5786a36 100644
--- a/drivers/accel/habanalabs/include/common/hl_boot_if.h
+++ b/drivers/accel/habanalabs/include/common/hl_boot_if.h
@@ -570,6 +570,8 @@ struct lkd_fw_comms_desc {
__le64 img_addr; /* address for next FW component load */
struct lkd_fw_binning_info binning_info;
struct lkd_fw_ascii_msg ascii_msg[LKD_FW_ASCII_MSG_MAX];
+ __le32 rsvd_mem_size_mb; /* reserved memory size [MB] for FW/SVE */
+ char reserved1[4];
};
enum comms_reset_cause {
@@ -596,6 +598,9 @@ struct lkd_fw_comms_msg {
__le64 img_addr;
struct lkd_fw_binning_info binning_info;
struct lkd_fw_ascii_msg ascii_msg[LKD_FW_ASCII_MSG_MAX];
+ /* reserved memory size [MB] for FW/SVE */
+ __le32 rsvd_mem_size_mb;
+ char reserved1[4];
};
struct {
__u8 reset_cause;
--
2.34.1
