diff options
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0097-amd-model_10xxx-Fix-poor-performance-on-Family-15h-C.patch')
| -rw-r--r-- | resources/libreboot/patch/kgpe-d16/0097-amd-model_10xxx-Fix-poor-performance-on-Family-15h-C.patch | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0097-amd-model_10xxx-Fix-poor-performance-on-Family-15h-C.patch b/resources/libreboot/patch/kgpe-d16/0097-amd-model_10xxx-Fix-poor-performance-on-Family-15h-C.patch new file mode 100644 index 0000000..9f21a62 --- /dev/null +++ b/resources/libreboot/patch/kgpe-d16/0097-amd-model_10xxx-Fix-poor-performance-on-Family-15h-C.patch @@ -0,0 +1,122 @@ +From 4dbb7204da39a6f47acb6875538acb4880f3a49b Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <kb9vqf@pearsoncomputing.net> +Date: Fri, 7 Aug 2015 19:04:49 -0500 +Subject: [PATCH 097/146] amd/model_10xxx: Fix poor performance on Family 15h + CPUs + +--- + src/cpu/amd/model_10xxx/defaults.h | 13 +++++++--- + src/cpu/amd/model_10xxx/init_cpus.c | 45 ++++++++++++++++++++++++++++++++--- + 2 files changed, 52 insertions(+), 6 deletions(-) + +diff --git a/src/cpu/amd/model_10xxx/defaults.h b/src/cpu/amd/model_10xxx/defaults.h +index bff2efd..4868c5c 100644 +--- a/src/cpu/amd/model_10xxx/defaults.h ++++ b/src/cpu/amd/model_10xxx/defaults.h +@@ -535,15 +535,15 @@ static const struct { + { 3, 0x140, AMD_FAM10_ALL, AMD_PTYPE_ALL, + 0x00800756, 0x00F3FFFF }, + +- { 3, 0x140, AMD_FAM15_ALL, AMD_PTYPE_ALL, +- 0x00a11755, 0x00f3ffff }, +- + { 3, 0x140, AMD_FAM10_ALL, AMD_PTYPE_UMA, + 0x00C37756, 0x00F3FFFF }, + + { 3, 0x144, AMD_FAM10_ALL, AMD_PTYPE_UMA, + 0x00000036, 0x000000FF }, + ++ { 3, 0x140, AMD_FAM15_ALL, AMD_PTYPE_ALL, ++ 0x00a11755, 0x00f3ffff }, ++ + /* Errata 281 Workaround */ + { 3, 0x144, ( AMD_DR_B0 | AMD_DR_B1), + AMD_PTYPE_SVR, 0x00000001, 0x0000000F }, +@@ -555,6 +555,13 @@ static const struct { + { 3, 0x148, AMD_FAM10_ALL, AMD_PTYPE_UMA, + 0x8000052A, 0xD5FFFFFF }, + ++ /* Core Interface Buffer Count */ ++ { 3, 0x1a0, AMD_FAM15_ALL, AMD_PTYPE_ALL, ++ 0x00034004, 0x00037007 }, /* CpuToNbFreeBufCnt = 0x3, ++ L3ToSriReqCBC = 0x4, ++ L3FreeListCBC = default, ++ CpuCmdBufCnt = 0x4 */ ++ + /* ACPI Power State Control Reg1 */ + { 3, 0x80, AMD_FAM10_ALL, AMD_PTYPE_ALL, + 0xE6002200, 0xFFFFFFFF }, +diff --git a/src/cpu/amd/model_10xxx/init_cpus.c b/src/cpu/amd/model_10xxx/init_cpus.c +index 6122acd..15ed259 100644 +--- a/src/cpu/amd/model_10xxx/init_cpus.c ++++ b/src/cpu/amd/model_10xxx/init_cpus.c +@@ -847,8 +847,9 @@ static BOOL AMD_CpuFindCapability(u8 node, u8 cap_count, u8 * offset) + */ + static u32 AMD_checkLinkType(u8 node, u8 link, u8 regoff) + { +- u32 val; +- u32 linktype = 0; ++ uint32_t val; ++ uint32_t val2; ++ uint32_t linktype = 0; + + /* Check connect, init and coherency */ + val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x18); +@@ -863,8 +864,13 @@ static u32 AMD_checkLinkType(u8 node, u8 link, u8 regoff) + if (linktype) { + /* Check gen3 */ + val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x08); ++ val = (val >> 8) & 0xf; ++ if (is_gt_rev_d()) { ++ val2 = pci_read_config32(NODE_PCI(node, 0), regoff + 0x1c); ++ val |= (val2 & 0x1) << 4; ++ } + +- if (((val >> 8) & 0x0F) > 6) ++ if (val > 6) + linktype |= HTPHY_LINKTYPE_HT3; + else + linktype |= HTPHY_LINKTYPE_HT1; +@@ -1147,6 +1153,39 @@ static void cpuSetAMDPCI(u8 node) + pci_write_config32(NODE_PCI(node, 3), 0xd4, dword); + } + ++ if (revision & AMD_FAM15_ALL) { ++ uint32_t f5x80; ++ uint8_t cu_enabled; ++ uint8_t compute_unit_count = 0; ++ uint8_t compute_unit_buffer_count; ++ ++ /* Determine the number of active compute units on this node */ ++ f5x80 = pci_read_config32(NODE_PCI(node, 5), 0x80); ++ cu_enabled = f5x80 & 0xf; ++ if (cu_enabled == 0x1) ++ compute_unit_count = 1; ++ if (cu_enabled == 0x3) ++ compute_unit_count = 2; ++ if (cu_enabled == 0x7) ++ compute_unit_count = 3; ++ if (cu_enabled == 0xf) ++ compute_unit_count = 4; ++ ++ if (compute_unit_count == 1) ++ compute_unit_buffer_count = 0x1c; ++ else if (compute_unit_count == 2) ++ compute_unit_buffer_count = 0x18; ++ else if (compute_unit_count == 3) ++ compute_unit_buffer_count = 0x14; ++ else ++ compute_unit_buffer_count = 0x10; ++ ++ dword = pci_read_config32(NODE_PCI(node, 3), 0x1a0); ++ dword &= ~(0x1f << 4); /* L3FreeListCBC = compute_unit_buffer_count */ ++ dword |= (compute_unit_buffer_count << 4); ++ pci_write_config32(NODE_PCI(node, 3), 0x1a0, dword); ++ } ++ + printk(BIOS_DEBUG, " done\n"); + } + +-- +1.7.9.5 + |