[PATCH 03/11] drm/amdgpu: cleanup gmc_v11_0_flush_gpu_tlb

[Christian König]

Remove leftovers from copying this from the gmc v10 code.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 108 ++++++++++---------------
 1 file changed, 41 insertions(+), 67 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index dcbba981462e..3c3ad3f17c6a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -186,27 +186,50 @@ static bool gmc_v11_0_get_vmid_pasid_mapping_info(
 	return !!(*p_pasid);
 }
 
-/*
- * GART
- * VMID 0 is the physical GPU addresses as used by the kernel.
- * VMIDs 1-15 are used for userspace clients and are handled
- * by the amdgpu vm/hsa code.
+/**
+ * gmc_v11_0_flush_gpu_tlb - gart tlb flush callback
+ *
+ * @adev: amdgpu_device pointer
+ * @vmid: vm instance to flush
+ * @vmhub: which hub to flush
+ * @flush_type: the flush type
+ *
+ * Flush the TLB for the requested page table.
  */
-
-static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
-				   unsigned int vmhub, uint32_t flush_type)
+static void gmc_v11_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
+					uint32_t vmhub, uint32_t flush_type)
 {
 	bool use_semaphore = gmc_v11_0_use_invalidate_semaphore(adev, vmhub);
 	struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
 	u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
-	u32 tmp;
 	/* Use register 17 for GART */
 	const unsigned int eng = 17;
+	unsigned char hub_ip;
+	u32 sem, req, ack;
 	unsigned int i;
-	unsigned char hub_ip = 0;
+	u32 tmp;
+
+	if ((vmhub == AMDGPU_GFXHUB(0)) && !adev->gfx.is_poweron)
+		return;
 
-	hub_ip = (vmhub == AMDGPU_GFXHUB(0)) ?
-		   GC_HWIP : MMHUB_HWIP;
+	sem = hub->vm_inv_eng0_sem + hub->eng_distance * eng;
+	req = hub->vm_inv_eng0_req + hub->eng_distance * eng;
+	ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng;
+
+	/* flush hdp cache */
+	adev->hdp.funcs->flush_hdp(adev, NULL);
+
+	/* For SRIOV run time, driver shouldn't access the register through MMIO
+	 * Directly use kiq to do the vm invalidation instead
+	 */
+	if ((adev->gfx.kiq[0].ring.sched.ready || adev->mes.ring.sched.ready) &&
+	    (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
+		amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, inv_req,
+				1 << vmid);
+		return;
+	}
+
+	hub_ip = (vmhub == AMDGPU_GFXHUB(0)) ? GC_HWIP : MMHUB_HWIP;
 
 	spin_lock(&adev->gmc.invalidate_lock);
 	/*
@@ -220,8 +243,7 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
 	if (use_semaphore) {
 		for (i = 0; i < adev->usec_timeout; i++) {
 			/* a read return value of 1 means semaphore acuqire */
-			tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
-					    hub->eng_distance * eng, hub_ip);
+			tmp = RREG32_RLC_NO_KIQ(sem, hub_ip);
 			if (tmp & 0x1)
 				break;
 			udelay(1);
@@ -231,12 +253,11 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
 			DRM_ERROR("Timeout waiting for sem acquire in VM flush!\n");
 	}
 
-	WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_req + hub->eng_distance * eng, inv_req, hub_ip);
+	WREG32_RLC_NO_KIQ(req, inv_req, hub_ip);
 
 	/* Wait for ACK with a delay.*/
 	for (i = 0; i < adev->usec_timeout; i++) {
-		tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_ack +
-				    hub->eng_distance * eng, hub_ip);
+		tmp = RREG32_RLC_NO_KIQ(ack, hub_ip);
 		tmp &= 1 << vmid;
 		if (tmp)
 			break;
@@ -246,12 +267,7 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
 
 	/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
 	if (use_semaphore)
-		/*
-		 * add semaphore release after invalidation,
-		 * write with 0 means semaphore release
-		 */
-		WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
-			      hub->eng_distance * eng, 0, hub_ip);
+		WREG32_RLC_NO_KIQ(sem, 0, hub_ip);
 
 	/* Issue additional private vm invalidation to MMHUB */
 	if ((vmhub != AMDGPU_GFXHUB(0)) &&
@@ -268,50 +284,8 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
 
 	spin_unlock(&adev->gmc.invalidate_lock);
 
-	if (i < adev->usec_timeout)
-		return;
-
-	DRM_ERROR("Timeout waiting for VM flush ACK!\n");
-}
-
-/**
- * gmc_v11_0_flush_gpu_tlb - gart tlb flush callback
- *
- * @adev: amdgpu_device pointer
- * @vmid: vm instance to flush
- * @vmhub: which hub to flush
- * @flush_type: the flush type
- *
- * Flush the TLB for the requested page table.
- */
-static void gmc_v11_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
-					uint32_t vmhub, uint32_t flush_type)
-{
-	if ((vmhub == AMDGPU_GFXHUB(0)) && !adev->gfx.is_poweron)
-		return;
-
-	/* flush hdp cache */
-	adev->hdp.funcs->flush_hdp(adev, NULL);
-
-	/* For SRIOV run time, driver shouldn't access the register through MMIO
-	 * Directly use kiq to do the vm invalidation instead
-	 */
-	if ((adev->gfx.kiq[0].ring.sched.ready || adev->mes.ring.sched.ready) &&
-	    (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
-		struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
-		const unsigned int eng = 17;
-		u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
-		u32 req = hub->vm_inv_eng0_req + hub->eng_distance * eng;
-		u32 ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng;
-
-		amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, inv_req,
-				1 << vmid);
-		return;
-	}
-
-	mutex_lock(&adev->mman.gtt_window_lock);
-	gmc_v11_0_flush_vm_hub(adev, vmid, vmhub, 0);
-	mutex_unlock(&adev->mman.gtt_window_lock);
+	if (i >= adev->usec_timeout)
+		DRM_ERROR("Timeout waiting for VM flush ACK!\n");
 }
 
 /**
-- 
2.34.1