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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/tests/uswc.c')
-rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/tests/uswc.c | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/tests/uswc.c b/board/MAI/bios_emulator/scitech/src/pm/tests/uswc.c deleted file mode 100644 index f0c7bd631..000000000 --- a/board/MAI/bios_emulator/scitech/src/pm/tests/uswc.c +++ /dev/null @@ -1,311 +0,0 @@ -/**************************************************************************** -* -* SciTech OS Portability Manager Library -* -* ======================================================================== -* -* The contents of this file are subject to the SciTech MGL Public -* License Version 1.0 (the "License"); you may not use this file -* except in compliance with the License. You may obtain a copy of -* the License at http://www.scitechsoft.com/mgl-license.txt -* -* Software distributed under the License is distributed on an -* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or -* implied. See the License for the specific language governing -* rights and limitations under the License. -* -* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. -* -* The Initial Developer of the Original Code is SciTech Software, Inc. -* All Rights Reserved. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: any -* -* Description: Simple test program to test the write combine functions. -* -* Note that this program should never be used in a production -* environment, because write combining needs to be handled -* with more intimate knowledge of the display hardware than -* you can obtain by simply examining the PCI configuration -* space. -* -****************************************************************************/ - -#include "pmapi.h" -#include "pcilib.h" -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stdarg.h> - -/*------------------------- Global Variables ------------------------------*/ - -static int NumPCI = -1; -static PCIDeviceInfo *PCI; -static int *BridgeIndex; -static int *DeviceIndex; -static int NumBridges; -static PCIDeviceInfo *AGPBridge = NULL; -static int NumDevices; - -/*-------------------------- Implementation -------------------------------*/ - -/**************************************************************************** -RETURNS: -Number of display devices found. - -REMARKS: -This function enumerates the number of available display devices on the -PCI bus, and returns the number found. -****************************************************************************/ -static int PCI_enumerateDevices(void) -{ - int i,j; - PCIDeviceInfo *info; - - /* If this is the first time we have been called, enumerate all */ - /* devices on the PCI bus. */ - if (NumPCI == -1) { - if ((NumPCI = PCI_getNumDevices()) == 0) - return -1; - PCI = malloc(NumPCI * sizeof(PCI[0])); - BridgeIndex = malloc(NumPCI * sizeof(BridgeIndex[0])); - DeviceIndex = malloc(NumPCI * sizeof(DeviceIndex[0])); - if (!PCI || !BridgeIndex || !DeviceIndex) - return -1; - for (i = 0; i < NumPCI; i++) - PCI[i].dwSize = sizeof(PCI[i]); - if (PCI_enumerate(PCI) == 0) - return -1; - - /* Build a list of all PCI bridge devices */ - for (i = 0,NumBridges = 0,BridgeIndex[0] = -1; i < NumPCI; i++) { - if (PCI[i].BaseClass == PCI_BRIDGE_CLASS) - BridgeIndex[NumBridges++] = i; - } - - /* Now build a list of all display class devices */ - for (i = 0,NumDevices = 1,DeviceIndex[0] = -1; i < NumPCI; i++) { - if (PCI_IS_DISPLAY_CLASS(&PCI[i])) { - if ((PCI[i].Command & 0x3) == 0x3) - DeviceIndex[0] = i; - else - DeviceIndex[NumDevices++] = i; - if (PCI[i].slot.p.Bus != 0) { - /* This device is on a different bus than the primary */ - /* PCI bus, so it is probably an AGP device. Find the */ - /* AGP bus device that controls that bus so we can */ - /* control it. */ - for (j = 0; j < NumBridges; j++) { - info = (PCIDeviceInfo*)&PCI[BridgeIndex[j]]; - if (info->u.type1.SecondayBusNumber == PCI[i].slot.p.Bus) { - AGPBridge = info; - break; - } - } - } - } - } - } - return NumDevices; -} - -/**************************************************************************** -REMARKS: -Enumerates useful information about attached display devices. -****************************************************************************/ -static void ShowDisplayDevices(void) -{ - int i,index; - - printf("Displaying enumeration of %d PCI display devices\n", NumDevices); - printf("\n"); - printf("DeviceID SubSystem Base10h (length ) Base14h (length )\n"); - for (index = 0; index < NumDevices; index++) { - i = DeviceIndex[index]; - printf("%04X:%04X %04X:%04X %08lX (%6ld KB) %08lX (%6ld KB)\n", - PCI[i].VendorID, - PCI[i].DeviceID, - PCI[i].u.type0.SubSystemVendorID, - PCI[i].u.type0.SubSystemID, - PCI[i].u.type0.BaseAddress10, - PCI[i].u.type0.BaseAddress10Len / 1024, - PCI[i].u.type0.BaseAddress14, - PCI[i].u.type0.BaseAddress14Len / 1024); - } - printf("\n"); -} - -/**************************************************************************** -REMARKS: -Dumps the value for a write combine region to the display. -****************************************************************************/ -static char *DecodeWCType( - uint type) -{ - static char *names[] = { - "UNCACHABLE", - "WRCOMB", - "UNKNOWN", - "UNKNOWN", - "WRTHROUGH", - "WRPROT", - "WRBACK", - }; - if (type <= PM_MTRR_MAX) - return names[type]; - return "UNKNOWN"; -} - -/**************************************************************************** -REMARKS: -Dumps the value for a write combine region to the display. -****************************************************************************/ -static void PMAPI EnumWriteCombine( - ulong base, - ulong length, - uint type) -{ - printf("%08lX %-10ld %s\n", base, length / 1024, DecodeWCType(type)); -} - -/**************************************************************************** -PARAMETERS: -err - Error to log - -REMARKS: -Function to log an error message if the MTRR write combining attempt failed. -****************************************************************************/ -static void LogMTRRError( - int err) -{ - if (err == PM_MTRR_ERR_OK) - return; - switch (err) { - case PM_MTRR_NOT_SUPPORTED: - printf("Failed: MTRR is not supported by host CPU\n"); - break; - case PM_MTRR_ERR_PARAMS: - printf("Failed: Invalid parameters passed to PM_enableWriteCombined!\n"); - break; - case PM_MTRR_ERR_NOT_4KB_ALIGNED: - printf("Failed: Address is not 4Kb aligned!\n"); - break; - case PM_MTRR_ERR_BELOW_1MB: - printf("Failed: Addresses below 1Mb cannot be write combined!\n"); - break; - case PM_MTRR_ERR_NOT_ALIGNED: - printf("Failed: Address is not correctly aligned for processor!\n"); - break; - case PM_MTRR_ERR_OVERLAP: - printf("Failed: Address overlaps an existing region!\n"); - break; - case PM_MTRR_ERR_TYPE_MISMATCH: - printf("Failed: Adress is contained with existing region, but type is different!\n"); - break; - case PM_MTRR_ERR_NONE_FREE: - printf("Failed: Out of MTRR registers!\n"); - break; - case PM_MTRR_ERR_NOWRCOMB: - printf("Failed: This processor does not support write combining!\n"); - break; - case PM_MTRR_ERR_NO_OS_SUPPORT: - printf("Failed: MTRR is not supported by host OS\n"); - break; - default: - printf("Failed: UNKNOWN ERROR!\n"); - break; - } - exit(-1); -} - -/**************************************************************************** -REMARKS: -Shows all write combine regions. -****************************************************************************/ -static void ShowWriteCombine(void) -{ - printf("Base Length(KB) Type\n"); - LogMTRRError(PM_enumWriteCombine(EnumWriteCombine)); - printf("\n"); -} - -/**************************************************************************** -REMARKS: -Dumps the value for a write combine region to the display. -****************************************************************************/ -static void EnableWriteCombine(void) -{ - int i,index; - - for (index = 0; index < NumDevices; index++) { - i = DeviceIndex[index]; - if (PCI[i].u.type0.BaseAddress10 & 0x8) { - LogMTRRError(PM_enableWriteCombine( - PCI[i].u.type0.BaseAddress10 & 0xFFFFFFF0, - PCI[i].u.type0.BaseAddress10Len, - PM_MTRR_WRCOMB)); - } - if (PCI[i].u.type0.BaseAddress14 & 0x8) { - LogMTRRError(PM_enableWriteCombine( - PCI[i].u.type0.BaseAddress14 & 0xFFFFFFF0, - PCI[i].u.type0.BaseAddress14Len, - PM_MTRR_WRCOMB)); - } - } - printf("\n"); - ShowDisplayDevices(); - ShowWriteCombine(); -} - -/**************************************************************************** -REMARKS: -Dumps the value for a write combine region to the display. -****************************************************************************/ -static void DisableWriteCombine(void) -{ - int i,index; - - for (index = 0; index < NumDevices; index++) { - i = DeviceIndex[index]; - if (PCI[i].u.type0.BaseAddress10 & 0x8) { - LogMTRRError(PM_enableWriteCombine( - PCI[i].u.type0.BaseAddress10 & 0xFFFFFFF0, - PCI[i].u.type0.BaseAddress10Len, - PM_MTRR_UNCACHABLE)); - } - if (PCI[i].u.type0.BaseAddress14 & 0x8) { - LogMTRRError(PM_enableWriteCombine( - PCI[i].u.type0.BaseAddress14 & 0xFFFFFFF0, - PCI[i].u.type0.BaseAddress14Len, - PM_MTRR_UNCACHABLE)); - } - } - printf("\n"); - ShowDisplayDevices(); - ShowWriteCombine(); -} - -int main(int argc,char *argv[]) -{ - PM_init(); - if (PCI_enumerateDevices() < 1) { - printf("No PCI display devices found!\n"); - return -1; - } - if (argc < 2) { - printf("usage: uswc [-show -on -off]\n\n"); - ShowDisplayDevices(); - return -1; - } - if (stricmp(argv[1],"-show") == 0) - ShowWriteCombine(); - else if (stricmp(argv[1],"-on") == 0) - EnableWriteCombine(); - else if (stricmp(argv[1],"-off") == 0) - DisableWriteCombine(); - return 0; -} |