drm/amdgpu: optimize umc v12 address conversion function

Split into 3 parts:
1. Convert soc physical address via ras ta.
2. Expand bad pages from soc physical address.
3. Dump bad address info.
Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/umc_v12_0.c

@@ -225,26 +225,16 @@ static void umc_v12_0_convert_error_address(struct amdgpu_device *adev,
 	}
 }
 
-static int umc_v12_0_convert_err_addr(struct amdgpu_device *adev,
-				struct ta_ras_query_address_input *addr_in,
-				uint64_t *pfns, int len)
+static void umc_v12_0_dump_addr_info(struct amdgpu_device *adev,
+				struct ta_ras_query_address_output *addr_out,
+				uint64_t err_addr)
 {
 	uint32_t col, row, row_xor, bank, channel_index;
-	uint64_t soc_pa, retired_page, column, err_addr;
-	struct ta_ras_query_address_output addr_out;
-	uint32_t pos = 0;
-
-	err_addr = addr_in->ma.err_addr;
-	addr_in->addr_type = TA_RAS_MCA_TO_PA;
-	if (psp_ras_query_address(&adev->psp, addr_in, &addr_out)) {
-		dev_warn(adev->dev, "Failed to query RAS physical address for 0x%llx",
-			err_addr);
-		return 0;
-	}
+	uint64_t soc_pa, retired_page, column;
 
-	soc_pa = addr_out.pa.pa;
-	bank = addr_out.pa.bank;
-	channel_index = addr_out.pa.channel_idx;
+	soc_pa = addr_out->pa.pa;
+	bank = addr_out->pa.bank;
+	channel_index = addr_out->pa.channel_idx;
 
 	col = (err_addr >> 1) & 0x1fULL;
 	row = (err_addr >> 10) & 0x3fffULL;
@@ -258,11 +248,6 @@ static int umc_v12_0_convert_err_addr(struct amdgpu_device *adev,
 	for (column = 0; column < UMC_V12_0_NA_MAP_PA_NUM; column++) {
 		retired_page = soc_pa | ((column & 0x3) << UMC_V12_0_PA_C2_BIT);
 		retired_page |= (((column & 0x4) >> 2) << UMC_V12_0_PA_C4_BIT);
-
-		if (pos >= len)
-			return 0;
-		pfns[pos++] = retired_page >> AMDGPU_GPU_PAGE_SHIFT;
-
 		/* include column bit 0 and 1 */
 		col &= 0x3;
 		col |= (column << 2);
@@ -270,6 +255,35 @@ static int umc_v12_0_convert_err_addr(struct amdgpu_device *adev,
 			"Error Address(PA):0x%-10llx Row:0x%-4x Col:0x%-2x Bank:0x%x Channel:0x%x\n",
 			retired_page, row, col, bank, channel_index);
 
+		/* shift R13 bit */
+		retired_page ^= (0x1ULL << UMC_V12_0_PA_R13_BIT);
+		dev_info(adev->dev,
+			"Error Address(PA):0x%-10llx Row:0x%-4x Col:0x%-2x Bank:0x%x Channel:0x%x\n",
+			retired_page, row_xor, col, bank, channel_index);
+	}
+}
+
+static int umc_v12_0_lookup_bad_pages_in_a_row(struct amdgpu_device *adev,
+			uint64_t pa_addr, uint64_t *pfns, int len)
+{
+	uint64_t soc_pa, retired_page, column;
+	uint32_t pos = 0;
+
+	soc_pa = pa_addr;
+	/* clear [C3 C2] in soc physical address */
+	soc_pa &= ~(0x3ULL << UMC_V12_0_PA_C2_BIT);
+	/* clear [C4] in soc physical address */
+	soc_pa &= ~(0x1ULL << UMC_V12_0_PA_C4_BIT);
+
+	/* loop for all possibilities of [C4 C3 C2] */
+	for (column = 0; column < UMC_V12_0_NA_MAP_PA_NUM; column++) {
+		retired_page = soc_pa | ((column & 0x3) << UMC_V12_0_PA_C2_BIT);
+		retired_page |= (((column & 0x4) >> 2) << UMC_V12_0_PA_C4_BIT);
+
+		if (pos >= len)
+			return 0;
+		pfns[pos++] = retired_page >> AMDGPU_GPU_PAGE_SHIFT;
+
 		/* shift R13 bit */
 		retired_page ^= (0x1ULL << UMC_V12_0_PA_R13_BIT);
 
@@ -277,14 +291,40 @@ static int umc_v12_0_convert_err_addr(struct amdgpu_device *adev,
 			return 0;
 		pfns[pos++] = retired_page >> AMDGPU_GPU_PAGE_SHIFT;
 
-		dev_info(adev->dev,
-			"Error Address(PA):0x%-10llx Row:0x%-4x Col:0x%-2x Bank:0x%x Channel:0x%x\n",
-			retired_page, row_xor, col, bank, channel_index);
 	}
 
 	return pos;
 }
 
+static int umc_v12_0_convert_mca_to_addr(struct amdgpu_device *adev,
+			uint64_t err_addr, uint32_t ch, uint32_t umc,
+			uint32_t node, uint32_t socket,
+			uint64_t *addr, bool dump_addr)
+{
+	struct ta_ras_query_address_input addr_in;
+	struct ta_ras_query_address_output addr_out;
+
+	memset(&addr_in, 0, sizeof(addr_in));
+	addr_in.ma.err_addr = err_addr;
+	addr_in.ma.ch_inst = ch;
+	addr_in.ma.umc_inst = umc;
+	addr_in.ma.node_inst = node;
+	addr_in.ma.socket_id = socket;
+	addr_in.addr_type = TA_RAS_MCA_TO_PA;
+	if (psp_ras_query_address(&adev->psp, &addr_in, &addr_out)) {
+		dev_warn(adev->dev, "Failed to query RAS physical address for 0x%llx",
+			err_addr);
+		return -EINVAL;
+	}
+
+	if (dump_addr)
+		umc_v12_0_dump_addr_info(adev, &addr_out, err_addr);
+
+	*addr = addr_out.pa.pa;
+
+	return 0;
+}
+
 static int umc_v12_0_query_error_address(struct amdgpu_device *adev,
 					uint32_t node_inst, uint32_t umc_inst,
 					uint32_t ch_inst, void *data)
@@ -483,12 +523,10 @@ static int umc_v12_0_update_ecc_status(struct amdgpu_device *adev,
 {
 	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
 	uint16_t hwid, mcatype;
-	struct ta_ras_query_address_input addr_in;
 	uint64_t page_pfn[UMC_V12_0_BAD_PAGE_NUM_PER_CHANNEL];
-	uint64_t err_addr, hash_val = 0;
+	uint64_t err_addr, hash_val = 0, pa_addr = 0;
 	struct ras_ecc_err *ecc_err;
-	int count;
-	int ret;
+	int count, ret;
 
 	hwid = REG_GET_FIELD(ipid, MCMP1_IPIDT0, HardwareID);
 	mcatype = REG_GET_FIELD(ipid, MCMP1_IPIDT0, McaType);
@@ -514,17 +552,17 @@ static int umc_v12_0_update_ecc_status(struct amdgpu_device *adev,
 		MCA_IPID_2_UMC_CH(ipid),
 		err_addr);
 
-	memset(page_pfn, 0, sizeof(page_pfn));
-
-	memset(&addr_in, 0, sizeof(addr_in));
-	addr_in.ma.err_addr = err_addr;
-	addr_in.ma.ch_inst = MCA_IPID_2_UMC_CH(ipid);
-	addr_in.ma.umc_inst = MCA_IPID_2_UMC_INST(ipid);
-	addr_in.ma.node_inst = MCA_IPID_2_DIE_ID(ipid);
-	addr_in.ma.socket_id = MCA_IPID_2_SOCKET_ID(ipid);
+	ret = umc_v12_0_convert_mca_to_addr(adev,
+			err_addr, MCA_IPID_2_UMC_CH(ipid),
+			MCA_IPID_2_UMC_INST(ipid), MCA_IPID_2_DIE_ID(ipid),
+			MCA_IPID_2_SOCKET_ID(ipid), &pa_addr, true);
+	if (ret)
+		return ret;
 
-	count = umc_v12_0_convert_err_addr(adev,
-				&addr_in, page_pfn, ARRAY_SIZE(page_pfn));
+	memset(page_pfn, 0, sizeof(page_pfn));
+	count = umc_v12_0_lookup_bad_pages_in_a_row(adev,
+				pa_addr,
+				page_pfn, ARRAY_SIZE(page_pfn));
 	if (count <= 0) {
 		dev_warn(adev->dev, "Fail to convert error address! count:%d\n", count);
 		return 0;