diff options
| author | Ofir Bitton <obitton@habana.ai> | 2021-01-28 15:30:25 +0100 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2021-02-08 17:20:08 +0100 |
| commit | 5dbd7b4de6ef84321cc1378eccdd92d4730c2e56 (patch) | |
| tree | f356ec10cf6ca9f7a9ae591b44b243491a8c7a70 /drivers/misc/habanalabs/include/common/hl_boot_if.h | |
| parent | habanalabs: fix integer handling issue (diff) | |
| download | linux-5dbd7b4de6ef84321cc1378eccdd92d4730c2e56.tar.xz linux-5dbd7b4de6ef84321cc1378eccdd92d4730c2e56.zip | |
habanalabs: improve communication protocol with cpucp
Current messaging communictaion protocol with cpucp can get out
of sync due to coherency issues. In order to improve the protocol
reliability, we modify the protocol to expect a different
acknowledgment for every packet sent to cpucp.
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/include/common/hl_boot_if.h')
| -rw-r--r-- | drivers/misc/habanalabs/include/common/hl_boot_if.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/include/common/hl_boot_if.h b/drivers/misc/habanalabs/include/common/hl_boot_if.h index 57785478a4ef..e87f5a98e193 100644 --- a/drivers/misc/habanalabs/include/common/hl_boot_if.h +++ b/drivers/misc/habanalabs/include/common/hl_boot_if.h @@ -166,6 +166,10 @@ * FW handles HBM ECC indications. * Initialized in: linux * + * CPU_BOOT_DEV_STS0_PKT_PI_ACK_EN Packets ack value used in the armcpd + * is set to the PI counter. + * Initialized in: linux + * * CPU_BOOT_DEV_STS0_ENABLED Device status register enabled. * This is a main indication that the * running FW populates the device status @@ -190,6 +194,7 @@ #define CPU_BOOT_DEV_STS0_SP_SRAM_EN (1 << 12) #define CPU_BOOT_DEV_STS0_CLK_GATE_EN (1 << 13) #define CPU_BOOT_DEV_STS0_HBM_ECC_EN (1 << 14) +#define CPU_BOOT_DEV_STS0_PKT_PI_ACK_EN (1 << 15) #define CPU_BOOT_DEV_STS0_ENABLED (1 << 31) enum cpu_boot_status { |