diff options
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0108-amd-amdfam10-Control-Family-15h-cache-partitioning-a.patch')
| -rw-r--r-- | resources/libreboot/patch/kgpe-d16/0108-amd-amdfam10-Control-Family-15h-cache-partitioning-a.patch | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0108-amd-amdfam10-Control-Family-15h-cache-partitioning-a.patch b/resources/libreboot/patch/kgpe-d16/0108-amd-amdfam10-Control-Family-15h-cache-partitioning-a.patch new file mode 100644 index 00000000..b160d2ba --- /dev/null +++ b/resources/libreboot/patch/kgpe-d16/0108-amd-amdfam10-Control-Family-15h-cache-partitioning-a.patch @@ -0,0 +1,177 @@ +From 4e4d10b69d13a3b15065bb2ee8f8c9b6a7d9ac89 Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Sun, 9 Aug 2015 02:47:51 -0500 +Subject: [PATCH 108/139] amd/amdfam10: Control Family 15h cache partitioning + and memory performance via nvram + +Change-Id: I3dd5d7f3640aee0395a68645c0242307605d3ce7 +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/cpu/amd/family_10h-family_15h/defaults.h | 5 ++--- + src/cpu/amd/family_10h-family_15h/init_cpus.c | 13 +++++++++++++ + src/mainboard/asus/kgpe-d16/cmos.default | 3 +++ + src/mainboard/asus/kgpe-d16/cmos.layout | 9 +++++++-- + src/northbridge/amd/amdfam10/northbridge.c | 22 ++++++++++++++++++++++ + src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 11 ++++++++++- + 6 files changed, 57 insertions(+), 6 deletions(-) + +diff --git a/src/cpu/amd/family_10h-family_15h/defaults.h b/src/cpu/amd/family_10h-family_15h/defaults.h +index ce25b25..af59120 100644 +--- a/src/cpu/amd/family_10h-family_15h/defaults.h ++++ b/src/cpu/amd/family_10h-family_15h/defaults.h +@@ -139,9 +139,8 @@ static const struct { + 0x00000000, 1 << (42-32)}, /* Bx [PwcDisableWalkerSharing]=1 */ + + { BU_CFG3, AMD_OR_C0, AMD_PTYPE_ALL, +- (0x3 << 20) | (0x1 << 22), 0x00000000, +- (0x3 << 20) | (0x1 << 22), 0x00000000}, /* C0 or above [PfcDoubleStride]=1, +- PfcStrideMul]=0x3 */ ++ 1 << 22, 0x00000000, ++ 1 << 22, 0x00000000}, /* C0 or above [PfcDoubleStride]=1 */ + + { EX_CFG, AMD_OR_C0, AMD_PTYPE_ALL, + 0x00000000, 1 << (54-32), +diff --git a/src/cpu/amd/family_10h-family_15h/init_cpus.c b/src/cpu/amd/family_10h-family_15h/init_cpus.c +index 115338e..2234197 100644 +--- a/src/cpu/amd/family_10h-family_15h/init_cpus.c ++++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c +@@ -981,6 +981,13 @@ void cpuSetAMDMSR(uint8_t node_id) + + /* Revision C0 and above */ + if (revision & AMD_OR_C0) { ++ uint8_t enable_experimental_memory_speed_boost; ++ ++ /* Check to see if cache partitioning is allowed */ ++ enable_experimental_memory_speed_boost = 0; ++ if (get_option(&nvram, "experimental_memory_speed_boost") == CB_SUCCESS) ++ enable_experimental_memory_speed_boost = !!nvram; ++ + uint32_t f3x1fc = pci_read_config32(NODE_PCI(node_id, 3), 0x1fc); + msr = rdmsr(FP_CFG); + msr.hi &= ~(0x7 << (42-32)); /* DiDtCfg4 */ +@@ -1000,6 +1007,12 @@ void cpuSetAMDMSR(uint8_t node_id) + msr.lo &= ~(0x1 << 16); /* DiDtMode */ + msr.lo |= ((f3x1fc & 0x1) << 16); + wrmsr(FP_CFG, msr); ++ ++ if (enable_experimental_memory_speed_boost) { ++ msr = rdmsr(BU_CFG3); ++ msr.lo |= (0x3 << 20); /* PfcStrideMul = 0x3 */ ++ wrmsr(BU_CFG3, msr); ++ } + } + + #if IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_SB700) || IS_ENABLED(CONFIG_SOUTHBRIDGE_AMD_SB800) +diff --git a/src/mainboard/asus/kgpe-d16/cmos.default b/src/mainboard/asus/kgpe-d16/cmos.default +index 9b30b00..0a898bd 100644 +--- a/src/mainboard/asus/kgpe-d16/cmos.default ++++ b/src/mainboard/asus/kgpe-d16/cmos.default +@@ -20,6 +20,9 @@ cpu_cc6_state = Enable + sata_ahci_mode = Enable + sata_alpm = Disable + maximum_p_state_limit = 0xf ++probe_filter = Auto ++l3_cache_partitioning = Disable + ieee1394 = Enable ++experimental_memory_speed_boost = Disable + power_on_after_fail = On + boot_option = Fallback +diff --git a/src/mainboard/asus/kgpe-d16/cmos.layout b/src/mainboard/asus/kgpe-d16/cmos.layout +index ec803b6..010d4db 100644 +--- a/src/mainboard/asus/kgpe-d16/cmos.layout ++++ b/src/mainboard/asus/kgpe-d16/cmos.layout +@@ -49,8 +49,11 @@ entries + 468 1 e 1 sata_alpm + 469 4 h 0 maximum_p_state_limit + 473 2 e 13 dimm_spd_checksum +-475 1 r 0 allow_spd_nvram_cache_restore +-477 1 e 1 ieee1394 ++475 1 e 14 probe_filter ++476 1 e 1 l3_cache_partitioning ++477 1 e 1 experimental_memory_speed_boost ++478 1 r 0 allow_spd_nvram_cache_restore ++479 1 e 1 ieee1394 + 728 256 h 0 user_data + 984 16 h 0 check_sum + # Reserve the extended AMD configuration registers +@@ -147,6 +150,8 @@ enumerations + 13 0 Enforce + 13 1 Ignore + 13 2 Override ++14 0 Disable ++14 1 Auto + + checksums + +diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c +index 8ad5200..58b0079 100644 +--- a/src/northbridge/amd/amdfam10/northbridge.c ++++ b/src/northbridge/amd/amdfam10/northbridge.c +@@ -1654,6 +1654,17 @@ static void detect_and_enable_probe_filter(device_t dev) + { + uint32_t dword; + ++ uint8_t nvram; ++ uint8_t enable_probe_filter; ++ ++ /* Check to see if the probe filter is allowed */ ++ enable_probe_filter = 1; ++ if (get_option(&nvram, "probe_filter") == CB_SUCCESS) ++ enable_probe_filter = !!nvram; ++ ++ if (!enable_probe_filter) ++ return; ++ + uint8_t fam15h = 0; + uint8_t rev_gte_d = 0; + uint8_t dual_node = 0; +@@ -1814,6 +1825,17 @@ static void detect_and_enable_cache_partitioning(device_t dev) + uint8_t i; + uint32_t dword; + ++ uint8_t nvram; ++ uint8_t enable_l3_cache_partitioning; ++ ++ /* Check to see if cache partitioning is allowed */ ++ enable_l3_cache_partitioning = 0; ++ if (get_option(&nvram, "l3_cache_partitioning") == CB_SUCCESS) ++ enable_l3_cache_partitioning = !!nvram; ++ ++ if (!enable_l3_cache_partitioning) ++ return; ++ + if (is_fam15h()) { + printk(BIOS_DEBUG, "Enabling L3 cache partitioning\n"); + +diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c +index de6c79c..42630b9 100644 +--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c ++++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c +@@ -5550,6 +5550,14 @@ static void mct_FinalMCT_D(struct MCTStatStruc *pMCTstat, + mct_ExtMCTConfig_Dx(pDCTstat); + } else { + /* Family 15h CPUs */ ++ uint8_t nvram; ++ uint8_t enable_experimental_memory_speed_boost; ++ ++ /* Check to see if cache partitioning is allowed */ ++ enable_experimental_memory_speed_boost = 0; ++ if (get_option(&nvram, "experimental_memory_speed_boost") == CB_SUCCESS) ++ enable_experimental_memory_speed_boost = !!nvram; ++ + val = 0x0ce00f00; /* FlushWrOnStpGnt = 0x0 */ + val |= 0x10 << 2; /* MctWrLimit = 0x10 */ + val |= 0x1; /* DctWrLimit = 0x1 */ +@@ -5563,7 +5571,8 @@ static void mct_FinalMCT_D(struct MCTStatStruc *pMCTstat, + val &= ~(0x7 << 8); /* CohPrefPrbLmt = 0x1 */ + val |= (0x1 << 8); + val |= (0x1 << 12); /* EnSplitDctLimits = 0x1 */ +- val |= (0x1 << 20); /* DblPrefEn = 0x1 */ ++ if (enable_experimental_memory_speed_boost) ++ val |= (0x1 << 20); /* DblPrefEn = 0x1 */ + val |= (0x7 << 22); /* PrefFourConf = 0x7 */ + val |= (0x7 << 25); /* PrefFiveConf = 0x7 */ + val &= ~(0xf << 28); /* DcqBwThrotWm = 0x0 */ +-- +1.9.1 + |