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From: Stanimir Varbanov <stanimir.varbanov@linaro.org>
To: Dikshita Agarwal <dikshita@codeaurora.org>,
	linux-media@vger.kernel.org, stanimir.varbanov@linaro.org
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	vgarodia@codeaurora.org
Subject: Re: [PATCH v2 1/7] venus: firmware: enable no tz fw loading for sc7280
Date: Mon, 5 Jul 2021 12:38:27 +0300	[thread overview]
Message-ID: <512298bd-f357-d2e6-9b1b-3a8b674cd3f4@linaro.org> (raw)
In-Reply-To: <1625126736-16266-2-git-send-email-dikshita@codeaurora.org>



On 7/1/21 11:05 AM, Dikshita Agarwal wrote:
> - Enable no tz FW loading.
> - add routine to reset XTSS.
> 
> Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
> ---
>  drivers/media/platform/qcom/venus/firmware.c     | 41 ++++++++++++++++++------
>  drivers/media/platform/qcom/venus/hfi_venus_io.h |  2 ++
>  2 files changed, 33 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
> index 227bd3b..d5a4674 100644
> --- a/drivers/media/platform/qcom/venus/firmware.c
> +++ b/drivers/media/platform/qcom/venus/firmware.c
> @@ -27,7 +27,12 @@
>  static void venus_reset_cpu(struct venus_core *core)
>  {
>  	u32 fw_size = core->fw.mapped_mem_size;
> -	void __iomem *wrapper_base = core->wrapper_base;
> +	void __iomem *wrapper_base;
> +
> +	if (IS_V6(core))
> +		wrapper_base = core->wrapper_tz_base;
> +	else
> +		wrapper_base = core->wrapper_base;
>  
>  	writel(0, wrapper_base + WRAPPER_FW_START_ADDR);
>  	writel(fw_size, wrapper_base + WRAPPER_FW_END_ADDR);
> @@ -35,11 +40,18 @@ static void venus_reset_cpu(struct venus_core *core)
>  	writel(fw_size, wrapper_base + WRAPPER_CPA_END_ADDR);
>  	writel(fw_size, wrapper_base + WRAPPER_NONPIX_START_ADDR);
>  	writel(fw_size, wrapper_base + WRAPPER_NONPIX_END_ADDR);
> -	writel(0x0, wrapper_base + WRAPPER_CPU_CGC_DIS);
> -	writel(0x0, wrapper_base + WRAPPER_CPU_CLOCK_CONFIG);
>  
> -	/* Bring ARM9 out of reset */
> -	writel(0, wrapper_base + WRAPPER_A9SS_SW_RESET);
> +	if (IS_V6(core)) {
> +		/* Bring XTSS out of reset */
> +		writel(0, wrapper_base + WRAPPER_TZ_XTSS_SW_RESET);
> +	}
> +	else {

} else {
	...
}

> +		writel(0x0, wrapper_base + WRAPPER_CPU_CGC_DIS);
> +		writel(0x0, wrapper_base + WRAPPER_CPU_CLOCK_CONFIG);
> +
> +		/* Bring ARM9 out of reset */
> +		writel(0, wrapper_base + WRAPPER_A9SS_SW_RESET);
> +	}
>  }
>  
>  int venus_set_hw_state(struct venus_core *core, bool resume)
> @@ -56,7 +68,9 @@ int venus_set_hw_state(struct venus_core *core, bool resume)
>  	if (resume) {
>  		venus_reset_cpu(core);
>  	} else {
> -		if (!IS_V6(core))
> +		if (IS_V6(core))
> +			writel(1, core->wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
> +		else
>  			writel(1, core->wrapper_base + WRAPPER_A9SS_SW_RESET);
>  	}
>  
> @@ -162,12 +176,19 @@ static int venus_shutdown_no_tz(struct venus_core *core)
>  	u32 reg;
>  	struct device *dev = core->fw.dev;
>  	void __iomem *wrapper_base = core->wrapper_base;
> +	void __iomem *wrapper_tz_base = core->wrapper_tz_base;
>  
> +	if (IS_V6(core)) {
> +	/* Assert the reset to XTSS */

insert one tab before comment

> +		reg = readl_relaxed(wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
> +		reg |= WRAPPER_XTSS_SW_RESET_BIT;
> +		writel_relaxed(reg, wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
> +	} else {
>  	/* Assert the reset to ARM9 */

insert one tab before comment

> -	reg = readl_relaxed(wrapper_base + WRAPPER_A9SS_SW_RESET);
> -	reg |= WRAPPER_A9SS_SW_RESET_BIT;
> -	writel_relaxed(reg, wrapper_base + WRAPPER_A9SS_SW_RESET);
> -
> +		reg = readl_relaxed(wrapper_base + WRAPPER_A9SS_SW_RESET);
> +		reg |= WRAPPER_A9SS_SW_RESET_BIT;
> +		writel_relaxed(reg, wrapper_base + WRAPPER_A9SS_SW_RESET);
> +	}
>  	/* Make sure reset is asserted before the mapping is removed */
>  	mb();
>  
> diff --git a/drivers/media/platform/qcom/venus/hfi_venus_io.h b/drivers/media/platform/qcom/venus/hfi_venus_io.h
> index 300c6e47..9735a24 100644
> --- a/drivers/media/platform/qcom/venus/hfi_venus_io.h
> +++ b/drivers/media/platform/qcom/venus/hfi_venus_io.h
> @@ -149,6 +149,8 @@
>  /* Wrapper TZ 6xx */
>  #define WRAPPER_TZ_BASE_V6			0x000c0000
>  #define WRAPPER_TZ_CPU_STATUS_V6		0x10
> +#define WRAPPER_TZ_XTSS_SW_RESET		0x1000
> +#define WRAPPER_XTSS_SW_RESET_BIT		BIT(0)
>  
>  /* Venus AON */
>  #define AON_BASE_V6				0x000e0000
> 

-- 
regards,
Stan

  reply	other threads:[~2021-07-05  9:38 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-01  8:05 [PATCH v2 0/7] media: venus: Enable venus support on sc7280 Dikshita Agarwal
2021-07-01  8:05 ` [PATCH v2 1/7] venus: firmware: enable no tz fw loading for sc7280 Dikshita Agarwal
2021-07-05  9:38   ` Stanimir Varbanov [this message]
2021-07-01  8:05 ` [PATCH v2 2/7] media: venus: core: Add sc7280 DT compatible and resource data Dikshita Agarwal
2021-07-01  8:05 ` [PATCH v2 3/7] media: venus: Add num_vpp_pipes to resource structure Dikshita Agarwal
2021-07-01  8:05 ` [PATCH v2 4/7] media: venus: hfi: Skip AON register programming for V6 1pipe Dikshita Agarwal
2021-07-01  8:05 ` [PATCH v2 5/7] venus: vdec: set work route to fw Dikshita Agarwal
2021-07-01  8:05 ` [PATCH v2 6/7] media: venus: helpers: update NUM_MBS macro calculation Dikshita Agarwal
2021-07-01  8:05 ` [PATCH v2 7/7] media: venus: Set buffer to FW based on FW min count requirement Dikshita Agarwal
2021-07-05  9:43   ` Stanimir Varbanov

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