Re: [PATCH 1/1] drm/amdgpu/gfx8: add support kernel interface queue(KIQ)

From: zhoucm1 <david1.zhou-5C7GfCeVMHo@public.gmane.org>
To: Xiangliang Yu <Xiangliang.Yu-5C7GfCeVMHo@public.gmane.org>,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Monk Liu <Monk.Liu-5C7GfCeVMHo@public.gmane.org>
Subject: Re: [PATCH 1/1] drm/amdgpu/gfx8: add support kernel interface queue(KIQ)
Date: Tue, 20 Dec 2016 17:49:27 +0800	[thread overview]
Message-ID: <5858FEA7.9060800@amd.com> (raw)
In-Reply-To: <1482227322-2556-1-git-send-email-Xiangliang.Yu-5C7GfCeVMHo@public.gmane.org>


On 2016年12月20日 17:48, Xiangliang Yu wrote:
> +	if (kiq->eop_obj == NULL) {
> +		r = amdgpu_bo_create(adev,
> +				     MEC_HPD_SIZE,
> +				     PAGE_SIZE, true,
> +				     AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
> +				     &kiq->eop_obj);
> +		if (r) {
> +			dev_warn(adev->dev, "(%d) create HDP EOP bo failed\n", r);
> +			return r;
> +		}
> +	}
> +
> +	r = amdgpu_bo_reserve(kiq->eop_obj, false);
> +	if (unlikely(r != 0)) {
> +		gfx_v8_0_kiq_fini(adev);
> +		return r;
> +	}
> +
> +	r = amdgpu_bo_pin(kiq->eop_obj, AMDGPU_GEM_DOMAIN_GTT,
> +			  &kiq->eop_gpu_addr);
> +	if (r) {
> +		dev_warn(adev->dev, "(%d) pin HDP EOP bo failed\n", r);
> +		gfx_v8_0_kiq_fini(adev);
> +		return r;
> +	}
> +
> +	r = amdgpu_bo_kmap(kiq->eop_obj, (void **)&hpd);
you can use amdgpu_bo_create/free_kernel helper to do these.

Regards,
David Zhou
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