예제 #1
0
/**
 * amdgpu_enable_vblank_kms - enable vblank interrupt
 *
 * @dev: drm dev pointer
 * @pipe: crtc to enable vblank interrupt for
 *
 * Enable the interrupt on the requested crtc (all asics).
 * Returns 0 on success, -EINVAL on failure.
 */
int amdgpu_enable_vblank_kms(struct drm_device *dev, unsigned int pipe)
{
	struct amdgpu_device *adev = dev->dev_private;
	int idx = amdgpu_crtc_idx_to_irq_type(adev, pipe);

	return amdgpu_irq_get(adev, &adev->crtc_irq, idx);
}
예제 #2
0
/**
 * amdgpu_fence_driver_start_ring - make the fence driver
 * ready for use on the requested ring.
 *
 * @ring: ring to start the fence driver on
 * @irq_src: interrupt source to use for this ring
 * @irq_type: interrupt type to use for this ring
 *
 * Make the fence driver ready for processing (all asics).
 * Not all asics have all rings, so each asic will only
 * start the fence driver on the rings it has.
 * Returns 0 for success, errors for failure.
 */
int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
				   struct amdgpu_irq_src *irq_src,
				   unsigned irq_type)
{
	struct amdgpu_device *adev = ring->adev;
	uint64_t index;

	if (ring != &adev->uvd.ring) {
		ring->fence_drv.cpu_addr = &adev->wb.wb[ring->fence_offs];
		ring->fence_drv.gpu_addr = adev->wb.gpu_addr + (ring->fence_offs * 4);
	} else {
		/* put fence directly behind firmware */
		index = ALIGN(adev->uvd.fw->size, 8);
		ring->fence_drv.cpu_addr = adev->uvd.cpu_addr + index;
		ring->fence_drv.gpu_addr = adev->uvd.gpu_addr + index;
	}
	amdgpu_fence_write(ring, atomic_read(&ring->fence_drv.last_seq));
	amdgpu_irq_get(adev, irq_src, irq_type);

	ring->fence_drv.irq_src = irq_src;
	ring->fence_drv.irq_type = irq_type;
	ring->fence_drv.initialized = true;

	dev_info(adev->dev, "fence driver on ring %d use gpu addr 0x%016llx, "
		 "cpu addr 0x%p\n", ring->idx,
		 ring->fence_drv.gpu_addr, ring->fence_drv.cpu_addr);
	return 0;
}
예제 #3
0
파일: mxgpu_ai.c 프로젝트: avagin/linux
int xgpu_ai_mailbox_get_irq(struct amdgpu_device *adev)
{
	int r;

	r = amdgpu_irq_get(adev, &adev->virt.rcv_irq, 0);
	if (r)
		return r;
	r = amdgpu_irq_get(adev, &adev->virt.ack_irq, 0);
	if (r) {
		amdgpu_irq_put(adev, &adev->virt.rcv_irq, 0);
		return r;
	}

	INIT_WORK(&adev->virt.flr_work, xgpu_ai_mailbox_flr_work);

	return 0;
}
예제 #4
0
/**
 * amdgpu_fence_driver_resume - resume the fence driver
 * for all possible rings.
 *
 * @adev: amdgpu device pointer
 *
 * Resume the fence driver for all possible rings (all asics).
 * Not all asics have all rings, so each asic will only
 * start the fence driver on the rings it has using
 * amdgpu_fence_driver_start_ring().
 * Returns 0 for success.
 */
void amdgpu_fence_driver_resume(struct amdgpu_device *adev)
{
	int i;

	for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
		struct amdgpu_ring *ring = adev->rings[i];
		if (!ring || !ring->fence_drv.initialized)
			continue;

		/* enable the interrupt */
		amdgpu_irq_get(adev, ring->fence_drv.irq_src,
			       ring->fence_drv.irq_type);
	}
}
예제 #5
0
파일: gmc_v9_0.c 프로젝트: Lyude/linux
static int gmc_v9_0_late_init(void *handle)
{
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
	/*
	 * The latest engine allocation on gfx9 is:
	 * Engine 0, 1: idle
	 * Engine 2, 3: firmware
	 * Engine 4~13: amdgpu ring, subject to change when ring number changes
	 * Engine 14~15: idle
	 * Engine 16: kfd tlb invalidation
	 * Engine 17: Gart flushes
	 */
	unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 4, 4 };
	unsigned i;
	int r;

	/*
	 * TODO - Uncomment once GART corruption issue is fixed.
	 */
	/* amdgpu_bo_late_init(adev); */

	for(i = 0; i < adev->num_rings; ++i) {
		struct amdgpu_ring *ring = adev->rings[i];
		unsigned vmhub = ring->funcs->vmhub;

		ring->vm_inv_eng = vm_inv_eng[vmhub]++;
		dev_info(adev->dev, "ring %u(%s) uses VM inv eng %u on hub %u\n",
			 ring->idx, ring->name, ring->vm_inv_eng,
			 ring->funcs->vmhub);
	}

	/* Engine 16 is used for KFD and 17 for GART flushes */
	for(i = 0; i < AMDGPU_MAX_VMHUBS; ++i)
		BUG_ON(vm_inv_eng[i] > 16);

	if (adev->asic_type == CHIP_VEGA10 && !amdgpu_sriov_vf(adev)) {
		r = gmc_v9_0_ecc_available(adev);
		if (r == 1) {
			DRM_INFO("ECC is active.\n");
		} else if (r == 0) {
			DRM_INFO("ECC is not present.\n");
			adev->df_funcs->enable_ecc_force_par_wr_rmw(adev, false);
		} else {
			DRM_ERROR("gmc_v9_0_ecc_available() failed. r: %d\n", r);
			return r;
		}
	}

	return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
}