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Commit 9dd60c4e authored by Christian König's avatar Christian König Committed by Alex Deucher
Browse files

drm/amdgpu: add support for processing IH ring 1 & 2 



Previously we only added the ring buffer memory, now add the handling as
well.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ad710812

drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c

+33 −0
Original line number Diff line number Diff line
@@ -176,6 +176,36 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg) 
	return ret;

}



/**

 * amdgpu_irq_handle_ih1 - kick of processing for IH1

 *

 * @work: work structure in struct amdgpu_irq

 *

 * Kick of processing IH ring 1.

 */

static void amdgpu_irq_handle_ih1(struct work_struct *work)

{

	struct amdgpu_device *adev = container_of(work, struct amdgpu_device,

						  irq.ih1_work);



	amdgpu_ih_process(adev, &adev->irq.ih1, amdgpu_irq_callback);

}



/**

 * amdgpu_irq_handle_ih2 - kick of processing for IH2

 *

 * @work: work structure in struct amdgpu_irq

 *

 * Kick of processing IH ring 2.

 */

static void amdgpu_irq_handle_ih2(struct work_struct *work)

{

	struct amdgpu_device *adev = container_of(work, struct amdgpu_device,

						  irq.ih2_work);



	amdgpu_ih_process(adev, &adev->irq.ih2, amdgpu_irq_callback);

}



/**

 * amdgpu_msi_ok - check whether MSI functionality is enabled

 *
@@ -240,6 +270,9 @@ int amdgpu_irq_init(struct amdgpu_device *adev) 
				amdgpu_hotplug_work_func);

	}



	INIT_WORK(&adev->irq.ih1_work, amdgpu_irq_handle_ih1);

	INIT_WORK(&adev->irq.ih2_work, amdgpu_irq_handle_ih2);



	adev->irq.installed = true;

	r = drm_irq_install(adev->ddev, adev->ddev->pdev->irq);

	if (r) {

drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h

+3 −1
Original line number Diff line number Diff line
@@ -90,6 +90,8 @@ struct amdgpu_irq { 
	/* interrupt rings */

	struct amdgpu_ih_ring		ih, ih1, ih2;

	const struct amdgpu_ih_funcs    *ih_funcs;

	struct work_struct		ih1_work, ih2_work;

	struct amdgpu_irq_src		self_irq;



	/* gen irq stuff */

	struct irq_domain		*domain; /* GPU irq controller domain */