Re: [PATCH v3 09/19] media: venus: core: Drop cache properties in resource struct

[Dikshita Agarwal <quic_dikshita@quicinc.com>]

On 3/27/2024 11:38 PM, Konrad Dybcio wrote:
> Currently VMEM/OCMEM/LLCC is disabled on all platforms.
> 
> Make it unconditional to save on space.
> 
> These caches will not be enabled until the Venus driver can reference
> them as chunks of SRAM (they're modelled as separate devices) to avoid
> hardcoding magic addresses and rougely accessing the hardware,
> bypassing the normal accessors.
> 
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c      | 24 ------------------------
>  drivers/media/platform/qcom/venus/core.h      |  3 ---
>  drivers/media/platform/qcom/venus/hfi_venus.c | 10 ++++------
>  3 files changed, 4 insertions(+), 33 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 26a0c264685a..51ac9eff244c 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -562,9 +562,6 @@ static const struct venus_resources msm8916_res = {
>  	.clks_num = 3,
>  	.max_load = 352800, /* 720p@30 + 1080p@30 */
>  	.hfi_version = HFI_VERSION_1XX,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xddc00000 - 1,
>  	.fwname = "qcom/venus-1.8/venus.mbn",
>  };
> @@ -595,9 +592,6 @@ static const struct venus_resources msm8996_res = {
>  	.vcodec_clks_num = 1,
>  	.max_load = 2563200,
>  	.hfi_version = HFI_VERSION_3XX,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xddc00000 - 1,
>  	.fwname = "qcom/venus-4.2/venus.mbn",
>  };
> @@ -653,9 +647,6 @@ static const struct venus_resources sdm660_res = {
>  	.vcodec_clks_num = 1,
>  	.max_load = 1036800,
>  	.hfi_version = HFI_VERSION_3XX,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.cp_start = 0,
>  	.cp_size = 0x79000000,
>  	.cp_nonpixel_start = 0x1000000,
> @@ -702,9 +693,6 @@ static const struct venus_resources sdm845_res = {
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.fwname = "qcom/venus-5.2/venus.mbn",
>  };
> @@ -727,9 +715,6 @@ static const struct venus_resources sdm845_res_v2 = {
>  	.max_load = 3110400,	/* 4096x2160@90 */
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x70800000,
> @@ -774,9 +759,6 @@ static const struct venus_resources sc7180_res = {
>  	.opp_pmdomain = pd_names_cx,
>  	.hfi_version = HFI_VERSION_4XX,
>  	.vpu_version = VPU_VERSION_AR50,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x70800000,
> @@ -832,9 +814,6 @@ static const struct venus_resources sm8250_res = {
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2,
>  	.num_vpp_pipes = 4,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.fwname = "qcom/vpu-1.0/venus.mbn",
>  };
> @@ -889,9 +868,6 @@ static const struct venus_resources sc7280_res = {
>  	.hfi_version = HFI_VERSION_6XX,
>  	.vpu_version = VPU_VERSION_IRIS2_1,
>  	.num_vpp_pipes = 1,
> -	.vmem_id = VIDC_RESOURCE_NONE,
> -	.vmem_size = 0,
> -	.vmem_addr = 0,
>  	.dma_mask = 0xe0000000 - 1,
>  	.cp_start = 0,
>  	.cp_size = 0x25800000,
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 376de1161114..e083ebb3ab4b 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -80,9 +80,6 @@ struct venus_resources {
>  	enum vpu_version vpu_version;
>  	u8 num_vpp_pipes;
>  	u32 max_load;
> -	unsigned int vmem_id;
> -	u32 vmem_size;
> -	u32 vmem_addr;
>  	u32 cp_start;
>  	u32 cp_size;
>  	u32 cp_nonpixel_start;
> diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
> index f9437b6412b9..42ff96f71235 100644
> --- a/drivers/media/platform/qcom/venus/hfi_venus.c
> +++ b/drivers/media/platform/qcom/venus/hfi_venus.c
> @@ -1067,17 +1067,14 @@ static void venus_process_msg_sys_error(struct venus_hfi_device *hdev,
>  static irqreturn_t venus_isr_thread(struct venus_core *core)
>  {
>  	struct venus_hfi_device *hdev = to_hfi_priv(core);
> -	const struct venus_resources *res;
>  	void *pkt;
>  	u32 msg_ret;
>  
>  	if (!hdev)
>  		return IRQ_NONE;
>  
> -	res = hdev->core->res;
>  	pkt = hdev->pkt_buf;
>  
> -
>  	while (!venus_iface_msgq_read(hdev, pkt)) {
>  		msg_ret = hfi_process_msg_packet(core, pkt);
>  		switch (msg_ret) {
> @@ -1085,9 +1082,10 @@ static irqreturn_t venus_isr_thread(struct venus_core *core)
>  			venus_process_msg_sys_error(hdev, pkt);
>  			break;
>  		case HFI_MSG_SYS_INIT:
> -			venus_hfi_core_set_resource(core, res->vmem_id,
> -						    res->vmem_size,
> -						    res->vmem_addr,
> +			/* Disable OCMEM/VMEM unconditionally until support is added */
> +			venus_hfi_core_set_resource(core, VIDC_RESOURCE_NONE,
> +						    0,
> +						    0,
>  						    hdev);
>  			break;
>  		case HFI_MSG_SYS_RELEASE_RESOURCE:
> 
If no issues reported by firmware on any SOC, then
Reviewed-by: Dikshita Agarwal <quic_dikshita@quicinc.com>