[PATCH 3/7] habanalabs/gaudi2: get f/w reset status register dynamically

Oded Gabbay
2022-09-18T11:37:45Z

From: farah kassabri <fkassabri@habana.ai>

Get the firmware reset status address from the dynamic registers
we read from the firmware instead of using a define.

Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
drivers/misc/habanalabs/gaudi2/gaudi2.c | 5 ++++-
drivers/misc/habanalabs/include/common/hl_boot_if.h | 4 +++-
2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c
index 6ed9b3ce16dd..b95eab4c237c 100644
--- a/drivers/misc/habanalabs/gaudi2/gaudi2.c
+++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c
@@ -5439,7 +5439,10 @@ static void gaudi2_execute_soft_reset(struct hl_device *hdev, u32 reset_sleep_ms

if (!driver_performs_reset) {
/* set SP to indicate reset request sent to FW */
- WREG32(mmCPU_RST_STATUS_TO_HOST, CPU_RST_STATUS_NA);
+ if (dyn_regs->cpu_rst_status)
+ WREG32(le32_to_cpu(dyn_regs->cpu_rst_status), CPU_RST_STATUS_NA);
+ else
+ WREG32(mmCPU_RST_STATUS_TO_HOST, CPU_RST_STATUS_NA);

WREG32(le32_to_cpu(dyn_regs->gic_host_soft_rst_irq),
gaudi2_irq_map_table[GAUDI2_EVENT_CPU_SOFT_RESET].cpu_id);
diff --git a/drivers/misc/habanalabs/include/common/hl_boot_if.h b/drivers/misc/habanalabs/include/common/hl_boot_if.h
index 2e45be5de4fe..e0ea51cc7475 100644
--- a/drivers/misc/habanalabs/include/common/hl_boot_if.h
+++ b/drivers/misc/habanalabs/include/common/hl_boot_if.h
@@ -431,7 +431,9 @@ struct cpu_dyn_regs {
__le32 gic_host_ints_irq;
__le32 gic_host_soft_rst_irq;
__le32 gic_rot_qm_irq_ctrl;
- __le32 reserved1[22]; /* reserve for future use */
+ __le32 cpu_rst_status;
+ __le32 eng_arc_irq_ctrl;
+ __le32 reserved1[20]; /* reserve for future use */
};

/* TODO: remove the desc magic after the code is updated to use message */
--
2.25.1