drm/amdgpu/discovery: store the number of UMC IPs on the asic

For chips with IP discovery get this from the table,
hardcode it for older asics.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1033,6 +1033,9 @@ int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev)
 			    le16_to_cpu(ip->hw_id) == SDMA3_HWID)
 				adev->sdma.num_instances++;
 
+			if (le16_to_cpu(ip->hw_id) == UMC_HWID)
+				adev->gmc.num_umc++;
+
 			for (k = 0; k < num_base_address; k++) {
 				/*
 				 * convert the endianness of base addresses in place,
@@ -1667,6 +1670,7 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 	case CHIP_VEGA10:
 		vega10_reg_base_init(adev);
 		adev->sdma.num_instances = 2;
+		adev->gmc.num_umc = 4;
 		adev->ip_versions[MMHUB_HWIP][0] = IP_VERSION(9, 0, 0);
 		adev->ip_versions[ATHUB_HWIP][0] = IP_VERSION(9, 0, 0);
 		adev->ip_versions[OSSSYS_HWIP][0] = IP_VERSION(4, 0, 0);
@@ -1688,6 +1692,7 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 	case CHIP_VEGA12:
 		vega10_reg_base_init(adev);
 		adev->sdma.num_instances = 2;
+		adev->gmc.num_umc = 4;
 		adev->ip_versions[MMHUB_HWIP][0] = IP_VERSION(9, 3, 0);
 		adev->ip_versions[ATHUB_HWIP][0] = IP_VERSION(9, 3, 0);
 		adev->ip_versions[OSSSYS_HWIP][0] = IP_VERSION(4, 0, 1);
@@ -1710,6 +1715,7 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 		vega10_reg_base_init(adev);
 		adev->sdma.num_instances = 1;
 		adev->vcn.num_vcn_inst = 1;
+		adev->gmc.num_umc = 2;
 		if (adev->apu_flags & AMD_APU_IS_RAVEN2) {
 			adev->ip_versions[MMHUB_HWIP][0] = IP_VERSION(9, 2, 0);
 			adev->ip_versions[ATHUB_HWIP][0] = IP_VERSION(9, 2, 0);
@@ -1747,6 +1753,7 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 	case CHIP_VEGA20:
 		vega20_reg_base_init(adev);
 		adev->sdma.num_instances = 2;
+		adev->gmc.num_umc = 8;
 		adev->ip_versions[MMHUB_HWIP][0] = IP_VERSION(9, 4, 0);
 		adev->ip_versions[ATHUB_HWIP][0] = IP_VERSION(9, 4, 0);
 		adev->ip_versions[OSSSYS_HWIP][0] = IP_VERSION(4, 2, 0);
@@ -1770,6 +1777,7 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 		arct_reg_base_init(adev);
 		adev->sdma.num_instances = 8;
 		adev->vcn.num_vcn_inst = 2;
+		adev->gmc.num_umc = 8;
 		adev->ip_versions[MMHUB_HWIP][0] = IP_VERSION(9, 4, 1);
 		adev->ip_versions[ATHUB_HWIP][0] = IP_VERSION(9, 4, 1);
 		adev->ip_versions[OSSSYS_HWIP][0] = IP_VERSION(4, 2, 1);
@@ -1797,6 +1805,7 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 		aldebaran_reg_base_init(adev);
 		adev->sdma.num_instances = 5;
 		adev->vcn.num_vcn_inst = 2;
+		adev->gmc.num_umc = 4;
 		adev->ip_versions[MMHUB_HWIP][0] = IP_VERSION(9, 4, 2);
 		adev->ip_versions[ATHUB_HWIP][0] = IP_VERSION(9, 4, 2);
 		adev->ip_versions[OSSSYS_HWIP][0] = IP_VERSION(4, 4, 0);

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

@@ -260,6 +260,8 @@ struct amdgpu_gmc {
 
 	/* MALL size */
 	u64 mall_size;
+	/* number of UMC instances */
+	int num_umc;
 };
 
 #define amdgpu_gmc_flush_gpu_tlb(adev, vmid, vmhub, type) ((adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid), (vmhub), (type)))