linux-kernel - Re: [PATCH] remoteproc: qcom: pas: Add elf64 support to coredump

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Message-ID: <Yi+2Rylfx6mOHHOK@builder.lan>
Date:   Mon, 14 Mar 2022 16:40:23 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Yogesh Lal <quic_ylal@...cinc.com>
Cc:     quic_sibis@...cinc.com, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remoteproc: qcom: pas: Add elf64 support to coredump

On Mon 14 Mar 05:00 CDT 2022, Yogesh Lal wrote:

> Add support to use elf64 coredumps to remote processors.

The commit message does not describe _this_ patch and it fails to
explain _why_ sm8450 should have 64-bit coredumps.

Please correct this.

Thanks,
Bjorn

> 
> Signed-off-by: Yogesh Lal <quic_ylal@...cinc.com>
> ---
>  drivers/remoteproc/qcom_q6v5_pas.c | 67 ++++++++++++++++++++++++++++++++++++--
>  1 file changed, 64 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
> index 1ae47cc..58c335e 100644
> --- a/drivers/remoteproc/qcom_q6v5_pas.c
> +++ b/drivers/remoteproc/qcom_q6v5_pas.c
> @@ -34,6 +34,7 @@ struct adsp_data {
>  	const char *firmware_name;
>  	int pas_id;
>  	unsigned int minidump_id;
> +	bool uses_elf64;
>  	bool has_aggre2_clk;
>  	bool auto_boot;
>  
> @@ -450,7 +451,11 @@ static int adsp_probe(struct platform_device *pdev)
>  	}
>  
>  	rproc->auto_boot = desc->auto_boot;
> -	rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_NONE);
> +
> +	if (desc->uses_elf64)
> +		rproc_coredump_set_elf_info(rproc, ELFCLASS64, EM_NONE);
> +	else
> +		rproc_coredump_set_elf_info(rproc, ELFCLASS32, EM_NONE);
>  
>  	adsp = (struct qcom_adsp *)rproc->priv;
>  	adsp->dev = &pdev->dev;
> @@ -617,6 +622,24 @@ static const struct adsp_data sm8350_adsp_resource = {
>  	.ssctl_id = 0x14,
>  };
>  
> +static const struct adsp_data sm8450_adsp_resource = {
> +	.crash_reason_smem = 423,
> +	.firmware_name = "adsp.mdt",
> +	.pas_id = 1,
> +	.uses_elf64 = true,
> +	.has_aggre2_clk = false,
> +	.auto_boot = true,
> +	.proxy_pd_names = (char*[]){
> +		"lcx",
> +		"lmx",
> +		NULL
> +	},
> +	.load_state = "adsp",
> +	.ssr_name = "lpass",
> +	.sysmon_name = "adsp",
> +	.ssctl_id = 0x14,
> +};
> +
>  static const struct adsp_data msm8996_adsp_resource = {
>  		.crash_reason_smem = 423,
>  		.firmware_name = "adsp.mdt",
> @@ -721,6 +744,24 @@ static const struct adsp_data sm8350_cdsp_resource = {
>  	.ssctl_id = 0x17,
>  };
>  
> +static const struct adsp_data sm8450_cdsp_resource = {
> +	.crash_reason_smem = 601,
> +	.firmware_name = "cdsp.mdt",
> +	.pas_id = 18,
> +	.uses_elf64 = true,
> +	.has_aggre2_clk = false,
> +	.auto_boot = true,
> +	.proxy_pd_names = (char*[]){
> +		"cx",
> +		"mxc",
> +		NULL
> +	},
> +	.load_state = "cdsp",
> +	.ssr_name = "cdsp",
> +	.sysmon_name = "cdsp",
> +	.ssctl_id = 0x17,
> +};
> +
>  static const struct adsp_data mpss_resource_init = {
>  	.crash_reason_smem = 421,
>  	.firmware_name = "modem.mdt",
> @@ -755,6 +796,25 @@ static const struct adsp_data sc8180x_mpss_resource = {
>  	.ssctl_id = 0x12,
>  };
>  
> +static const struct adsp_data sm8450_mpss_resource = {
> +	.crash_reason_smem = 421,
> +	.firmware_name = "modem.mdt",
> +	.pas_id = 4,
> +	.minidump_id = 3,
> +	.uses_elf64 = true,
> +	.has_aggre2_clk = false,
> +	.auto_boot = false,
> +	.proxy_pd_names = (char*[]){
> +		"cx",
> +		"mss",
> +		NULL
> +	},
> +	.load_state = "modem",
> +	.ssr_name = "mpss",
> +	.sysmon_name = "modem",
> +	.ssctl_id = 0x12,
> +};
> +
>  static const struct adsp_data slpi_resource_init = {
>  		.crash_reason_smem = 424,
>  		.firmware_name = "slpi.mdt",
> @@ -879,10 +939,11 @@ static const struct of_device_id adsp_of_match[] = {
>  	{ .compatible = "qcom,sm8350-cdsp-pas", .data = &sm8350_cdsp_resource},
>  	{ .compatible = "qcom,sm8350-slpi-pas", .data = &sm8350_slpi_resource},
>  	{ .compatible = "qcom,sm8350-mpss-pas", .data = &mpss_resource_init},
> -	{ .compatible = "qcom,sm8450-adsp-pas", .data = &sm8350_adsp_resource},
> -	{ .compatible = "qcom,sm8450-cdsp-pas", .data = &sm8350_cdsp_resource},
> +	{ .compatible = "qcom,sm8450-adsp-pas", .data = &sm8450_adsp_resource},
> +	{ .compatible = "qcom,sm8450-cdsp-pas", .data = &sm8450_cdsp_resource},
>  	{ .compatible = "qcom,sm8450-slpi-pas", .data = &sm8350_slpi_resource},
>  	{ .compatible = "qcom,sm8450-mpss-pas", .data = &mpss_resource_init},
> +	{ .compatible = "qcom,sm8450-mpss-pas", .data = &sm8450_mpss_resource},
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(of, adsp_of_match);
> -- 
> 2.7.4
>