On 18.12.2023 12:32, Dikshita Agarwal wrote:
> Allocate interrupt resources, enable the interrupt line and IRQ handling.
> Register the IRQ handler to be called when interrupt occurs and
> the function to be called from IRQ handler thread.
> The threads invoke the driver's response handler which handles
> all different responses from firmware.
>
> Signed-off-by: Dikshita Agarwal <quic_dikshita@xxxxxxxxxxx>
> ---
[...]
> +
> +irqreturn_t iris_hfi_isr_handler(int irq, void *data)
> +{
> + struct iris_core *core = data;
> +
> + if (!core)
> + return IRQ_NONE;
Should this even be possible?
> +
> + mutex_lock(&core->lock);
> + call_vpu_op(core, clear_interrupt, core);
> + mutex_unlock(&core->lock);
> +
> + __response_handler(core);
> +
> + if (!call_vpu_op(core, watchdog, core, core->intr_status))
> + enable_irq(irq);
> +
> + return IRQ_HANDLED;
> +}
> diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_hfi.h b/drivers/media/platform/qcom/vcodec/iris/iris_hfi.h
> index 8a057cc..8a62986 100644
> --- a/drivers/media/platform/qcom/vcodec/iris/iris_hfi.h
> +++ b/drivers/media/platform/qcom/vcodec/iris/iris_hfi.h
> @@ -14,4 +14,7 @@ int iris_hfi_core_deinit(struct iris_core *core);
> int iris_hfi_session_open(struct iris_inst *inst);
> int iris_hfi_session_close(struct iris_inst *inst);
>
> +irqreturn_t iris_hfi_isr(int irq, void *data);
> +irqreturn_t iris_hfi_isr_handler(int irq, void *data);
> +
> #endif
> diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_hfi_response.c b/drivers/media/platform/qcom/vcodec/iris/iris_hfi_response.c
> new file mode 100644
> index 0000000..829f3f6
> --- /dev/null
> +++ b/drivers/media/platform/qcom/vcodec/iris/iris_hfi_response.c
> @@ -0,0 +1,184 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
> + */
> +
> +#include "hfi_defines.h"
> +#include "iris_hfi_packet.h"
> +#include "iris_hfi_response.h"
> +
> +static void print_sfr_message(struct iris_core *core)
I'm not sure how 'print' relates to what this function does
[...]
> +static int handle_system_error(struct iris_core *core,
> + struct hfi_packet *pkt)
> +{
> + print_sfr_message(core);
> +
> + iris_core_deinit(core);
Either take the return value of /\ into account, or make this function
void.
> +
> + return 0;
> +}
[...]
> +
> +struct sfr_buffer {
> + u32 bufsize;
> + u8 rg_data[];
Looks like you skipped static code checks.. Use __counted_by
[...]
> @@ -17,6 +17,8 @@
> #define CPU_CS_VCICMDARG0_IRIS3 (CPU_CS_BASE_OFFS_IRIS3 + 0x24)
> #define CPU_CS_VCICMDARG1_IRIS3 (CPU_CS_BASE_OFFS_IRIS3 + 0x28)
>
> +#define CPU_CS_A2HSOFTINTCLR_IRIS3 (CPU_CS_BASE_OFFS_IRIS3 + 0x1C)
You're mixing upper and lowercase hex throughout your defines.
[...]
> +static int clear_interrupt_iris3(struct iris_core *core)
> +{
> + u32 intr_status = 0, mask = 0;
> + int ret;
> +
> + ret = read_register(core, WRAPPER_INTR_STATUS_IRIS3, &intr_status);
> + if (ret)
> + return ret;
> +
> + mask = (WRAPPER_INTR_STATUS_A2H_BMSK_IRIS3 |
> + WRAPPER_INTR_STATUS_A2HWD_BMSK_IRIS3 |
> + CTRL_INIT_IDLE_MSG_BMSK_IRIS3);
unnecesary parentheses
> +
> + if (intr_status & mask)
> + core->intr_status |= intr_status;
> +
> + ret = write_register(core, CPU_CS_A2HSOFTINTCLR_IRIS3, 1);
> +
> + return ret;
why not return write_register directly?
Konrad
