[coreboot-gerrit] Patch set updated for coreboot: northbridge/amd/amdmct/mct_ddr3: Fix null pointer access and related hangs
Timothy Pearson (tpearson@raptorengineeringinc.com)
gerrit at coreboot.org
Sun Oct 18 21:43:28 CEST 2015
Timothy Pearson (tpearson at raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/12009
-gerrit
commit 55d9af79adf271287c8cf9091da53b707f67e02f
Author: Timothy Pearson <tpearson at raptorengineeringinc.com>
Date: Fri Jun 26 12:17:48 2015 -0500
northbridge/amd/amdmct/mct_ddr3: Fix null pointer access and related hangs
Change-Id: Iaf826b6a0c8e929372519f6d97933515a80f0b39
Signed-off-by: Timothy Pearson <tpearson at raptorengineeringinc.com>
---
src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 58 +++++++++++++++-------------
src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c | 8 ++--
2 files changed, 34 insertions(+), 32 deletions(-)
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
index f9a7934..e859c54 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
@@ -826,7 +826,7 @@ static uint32_t fam15h_output_driver_compensation_code(struct DCTStatStruc *pDCT
/* RDIMM */
/* Fam15h BKDG Rev. 3.14 section 2.10.5.3.4 Table 74 */
if (MaxDimmsInstallable == 1) {
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (MemClkFreq == 0x4) {
/* DDR3-667 */
@@ -850,8 +850,8 @@ static uint32_t fam15h_output_driver_compensation_code(struct DCTStatStruc *pDCT
calibration_code |= 0x22 << 16;
}
} else if (MaxDimmsInstallable == 2) {
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[0];
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (dimm_count == 1) {
/* 1 DIMM detected */
@@ -875,8 +875,8 @@ static uint32_t fam15h_output_driver_compensation_code(struct DCTStatStruc *pDCT
}
} else if (dimm_count == 2) {
/* 2 DIMMs detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[0];
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (MemClkFreq == 0x4) {
/* DDR3-667 */
@@ -943,8 +943,8 @@ static uint32_t fam15h_output_driver_compensation_code(struct DCTStatStruc *pDCT
}
} else if (dimm_count == 2) {
/* 2 DIMMs detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[0];
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (MemClkFreq == 0x4) {
/* DDR3-667 */
@@ -1065,7 +1065,7 @@ static uint32_t fam15h_address_timing_compensation_code(struct DCTStatStruc *pDC
/* UDIMM */
/* Fam15h BKDG Rev. 3.14 section 2.10.5.3.4 Table 73 */
if (MaxDimmsInstallable == 1) {
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (MemClkFreq == 0x4) {
/* DDR3-667 */
@@ -1098,7 +1098,7 @@ static uint32_t fam15h_address_timing_compensation_code(struct DCTStatStruc *pDC
} else if (MaxDimmsInstallable == 2) {
if (dimm_count == 1) {
/* 1 DIMM detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (MemClkFreq == 0x4) {
/* DDR3-667 */
@@ -1127,8 +1127,8 @@ static uint32_t fam15h_address_timing_compensation_code(struct DCTStatStruc *pDC
}
} else if (dimm_count == 2) {
/* 2 DIMMs detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[0];
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (MemClkFreq == 0x4) {
/* DDR3-667 */
@@ -1196,7 +1196,7 @@ static uint8_t fam15h_slow_access_mode(struct DCTStatStruc *pDCTstat, uint8_t dc
/* UDIMM */
/* Fam15h BKDG Rev. 3.14 section 2.10.5.3.4 Table 73 */
if (MaxDimmsInstallable == 1) {
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(1 * 2) + dct];
if ((MemClkFreq == 0x4) || (MemClkFreq == 0x6)
|| (MemClkFreq == 0xa) | (MemClkFreq == 0xe)) {
@@ -1212,7 +1212,7 @@ static uint8_t fam15h_slow_access_mode(struct DCTStatStruc *pDCTstat, uint8_t dc
} else if (MaxDimmsInstallable == 2) {
if (dimm_count == 1) {
/* 1 DIMM detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(1 * 2) + dct];
if ((MemClkFreq == 0x4) || (MemClkFreq == 0x6)
|| (MemClkFreq == 0xa) | (MemClkFreq == 0xe)) {
@@ -1227,8 +1227,8 @@ static uint8_t fam15h_slow_access_mode(struct DCTStatStruc *pDCTstat, uint8_t dc
}
} else if (dimm_count == 2) {
/* 2 DIMMs detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[0];
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if ((MemClkFreq == 0x4) || (MemClkFreq == 0x6)
|| (MemClkFreq == 0xa)) {
@@ -5851,14 +5851,18 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
uint8_t write_odt_delay;
uint8_t read_odt_delay;
+ /* NOTE
+ * Rank count per DIMM and DCT is encoded by pDCTstat->DimmRanks[(<dimm number> * 2) + dct]
+ */
+
/* Select appropriate ODT pattern for installed DIMMs
* Refer to the Fam15h BKDG Rev. 3.14, page 149 onwards
*/
- if (pDCTstat->C_DCTPtr[dct]->Status[DCT_STATUS_REGISTERED]) {
+ if (pDCTstat->Status & (1 << SB_Registered)) {
if (MaxDimmsInstallable == 2) {
if (dimm_count == 1) {
/* 1 DIMM detected */
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (rank_count_dimm1 == 1) {
odt_pattern_0 = 0x00000000;
odt_pattern_1 = 0x00000000;
@@ -5883,8 +5887,8 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
}
} else {
/* 2 DIMMs detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[dct]->DimmRanks[0];
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4)) {
odt_pattern_0 = 0x00000000;
odt_pattern_1 = 0x01010202;
@@ -5922,7 +5926,7 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
odt_pattern_2 = 0x00000000;
odt_pattern_3 = 0x00000000;
}
- } else if (pDCTstat->C_DCTPtr[dct]->Status[DCT_STATUS_LOAD_REDUCED]) {
+ } else if (pDCTstat->Status & (1 << SB_LoadReduced)) {
/* TODO
* Load reduced dimms UNIMPLEMENTED
*/
@@ -5934,7 +5938,7 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
if (MaxDimmsInstallable == 2) {
if (dimm_count == 1) {
/* 1 DIMM detected */
- rank_count_dimm1 = pDCTstat->C_DCTPtr[dct]->DimmRanks[1];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
if (rank_count_dimm1 == 1) {
odt_pattern_0 = 0x00000000;
odt_pattern_1 = 0x00000000;
@@ -5970,7 +5974,7 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
}
}
- if (pDCTstat->C_DCTPtr[dct]->Status[DCT_STATUS_LOAD_REDUCED]) {
+ if (pDCTstat->Status & (1 << SB_LoadReduced)) {
/* TODO
* Load reduced dimms UNIMPLEMENTED
*/
@@ -6030,11 +6034,11 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
/* Select appropriate ODT pattern for installed DIMMs
* Refer to the Fam10h BKDG Rev. 3.62, page 120 onwards
*/
- if (pDCTstat->C_DCTPtr[i]->Status[DCT_STATUS_REGISTERED]) {
+ if (pDCTstat->Status & (1 << SB_Registered)) {
if (MaxDimmsInstallable == 2) {
if (dimm_count == 1) {
/* 1 DIMM detected */
- rank_count_dimm1 = pDCTstat->C_DCTPtr[i]->DimmRanks[1];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + i];
if (rank_count_dimm1 == 1) {
odt_pattern_0 = 0x00000000;
odt_pattern_1 = 0x00000000;
@@ -6059,8 +6063,8 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
}
} else {
/* 2 DIMMs detected */
- rank_count_dimm0 = pDCTstat->C_DCTPtr[i]->DimmRanks[0];
- rank_count_dimm1 = pDCTstat->C_DCTPtr[i]->DimmRanks[1];
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + i];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + i];
if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4)) {
odt_pattern_0 = 0x00000000;
odt_pattern_1 = 0x01010202;
@@ -6102,7 +6106,7 @@ static void mct_ProgramODT_D(struct MCTStatStruc *pMCTstat,
if (MaxDimmsInstallable == 2) {
if (dimm_count == 1) {
/* 1 DIMM detected */
- rank_count_dimm1 = pDCTstat->C_DCTPtr[i]->DimmRanks[1];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + i];
if (rank_count_dimm1 == 1) {
odt_pattern_0 = 0x00000000;
odt_pattern_1 = 0x00000000;
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c b/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c
index 380c5f2..c7d7463 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c
@@ -38,10 +38,9 @@ static uint8_t fam15_dimm_dic(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_
static uint8_t fam15_rttwr(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_t dimm, uint8_t rank, uint8_t package_type)
{
uint8_t term = 0;
- sDCTStruct *pDCTData = pDCTstat->C_DCTPtr[dct];
- uint8_t number_of_dimms = pDCTData->MaxDimmsInstalled;
+ uint8_t number_of_dimms = pDCTstat->MAdimms[dct];
uint8_t frequency_index;
- uint8_t rank_count = pDCTData->DimmRanks[dimm];
+ uint8_t rank_count = pDCTstat->DimmRanks[(dimm * 2) + dct];
if (is_fam15h())
frequency_index = Get_NB32_DCT(pDCTstat->dev_dct, dct, 0x94) & 0x1f;
@@ -101,8 +100,7 @@ static uint8_t fam15_rttwr(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_t d
static uint8_t fam15_rttnom(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_t dimm, uint8_t rank, uint8_t package_type)
{
uint8_t term = 0;
- sDCTStruct *pDCTData = pDCTstat->C_DCTPtr[dct];
- uint8_t number_of_dimms = pDCTData->MaxDimmsInstalled;
+ uint8_t number_of_dimms = pDCTstat->MAdimms[dct];
uint8_t frequency_index;
if (is_fam15h())
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