Re: [PATCH v6 20/24] drm/i915/dg1: Load DMC

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On Tue, Sep 29, 2020 at 11:42:30PM -0700, Lucas De Marchi wrote:
> From: Matt Atwood <matthew.s.atwood@xxxxxxxxx>
> 
> Add support to load DMC v2.0.2 on DG1
> 
> While we're at it, make TGL use the same GEN12 firmware size definition
> and remove obsolete comment.
> 
> Bpec: 49230
> 
> v2: do not replace GEN12_CSR_MAX_FW_SIZE (from José)
>     and replace stale comment
> 
> Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
> Signed-off-by: Matt Atwood <matthew.s.atwood@xxxxxxxxx>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>

I'm not sure if the pull request with the firmware has been sent yet,
but the version here is correct, so

Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/display/intel_csr.c | 12 +++++++++---
>  1 file changed, 9 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_csr.c b/drivers/gpu/drm/i915/display/intel_csr.c
> index d5db16764619..67dc64df78a5 100644
> --- a/drivers/gpu/drm/i915/display/intel_csr.c
> +++ b/drivers/gpu/drm/i915/display/intel_csr.c
> @@ -40,13 +40,16 @@
>  
>  #define GEN12_CSR_MAX_FW_SIZE		ICL_CSR_MAX_FW_SIZE
>  
> +#define DG1_CSR_PATH			"i915/dg1_dmc_ver2_02.bin"
> +#define DG1_CSR_VERSION_REQUIRED	CSR_VERSION(2, 2)
> +MODULE_FIRMWARE(DG1_CSR_PATH);
> +
>  #define RKL_CSR_PATH			"i915/rkl_dmc_ver2_02.bin"
>  #define RKL_CSR_VERSION_REQUIRED	CSR_VERSION(2, 2)
>  MODULE_FIRMWARE(RKL_CSR_PATH);
>  
>  #define TGL_CSR_PATH			"i915/tgl_dmc_ver2_08.bin"
>  #define TGL_CSR_VERSION_REQUIRED	CSR_VERSION(2, 8)
> -#define TGL_CSR_MAX_FW_SIZE		0x6000
>  MODULE_FIRMWARE(TGL_CSR_PATH);
>  
>  #define ICL_CSR_PATH			"i915/icl_dmc_ver1_09.bin"
> @@ -686,14 +689,17 @@ void intel_csr_ucode_init(struct drm_i915_private *dev_priv)
>  	 */
>  	intel_csr_runtime_pm_get(dev_priv);
>  
> -	if (IS_ROCKETLAKE(dev_priv)) {
> +	if (IS_DG1(dev_priv)) {
> +		csr->fw_path = DG1_CSR_PATH;
> +		csr->required_version = DG1_CSR_VERSION_REQUIRED;
> +		csr->max_fw_size = GEN12_CSR_MAX_FW_SIZE;
> +	} else if (IS_ROCKETLAKE(dev_priv)) {
>  		csr->fw_path = RKL_CSR_PATH;
>  		csr->required_version = RKL_CSR_VERSION_REQUIRED;
>  		csr->max_fw_size = GEN12_CSR_MAX_FW_SIZE;
>  	} else if (INTEL_GEN(dev_priv) >= 12) {
>  		csr->fw_path = TGL_CSR_PATH;
>  		csr->required_version = TGL_CSR_VERSION_REQUIRED;
> -		/* Allow to load fw via parameter using the last known size */
>  		csr->max_fw_size = GEN12_CSR_MAX_FW_SIZE;
>  	} else if (IS_GEN(dev_priv, 11)) {
>  		csr->fw_path = ICL_CSR_PATH;
> -- 
> 2.28.0
> 

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795
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