modesetting: rewrite probing based on fbdev.
This isn't perfect, it should really do more with bus id matching and finding the write drm device using sysfs if it can. but it removes lots of hardcoding of pci ids.
This commit is contained in:
Dave Airlie
parent
a77fae8505
commit
a72bdf170c
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@ -31,6 +31,7 @@
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#include "config.h"
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#endif
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#include <fcntl.h>
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#include "xf86.h"
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#include "xf86_OSproc.h"
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#include "compiler.h"
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@ -68,18 +69,19 @@ static Bool ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc,
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char **argv);
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static Bool PreInit(ScrnInfoPtr pScrn, int flags);
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#if XSERVER_LIBPCIACCESS
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static Bool
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pci_probe(DriverPtr driver,
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int entity_num, struct pci_device *device, intptr_t match_data);
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#else
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static Bool Probe(DriverPtr drv, int flags);
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#endif
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static Bool ms_pci_probe(DriverPtr driver,
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int entity_num, struct pci_device *device,
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intptr_t match_data);
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#if XSERVER_LIBPCIACCESS
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static const struct pci_id_match device_match[] = {
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{0x8086, 0x0046, 0xffff, 0xffff, 0, 0, 0},
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{0, 0, 0},
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#ifdef XSERVER_LIBPCIACCESS
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static const struct pci_id_match ms_device_match[] = {
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{
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PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY,
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0x00030000, 0x00ffffff, 0
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},
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{ 0, 0, 0 },
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};
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#endif
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@ -87,38 +89,29 @@ _X_EXPORT DriverRec modesetting = {
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1,
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"modesetting",
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Identify,
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#if XSERVER_LIBPCIACCESS
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NULL,
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#else
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Probe,
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#endif
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AvailableOptions,
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NULL,
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0,
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NULL,
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#if XSERVER_LIBPCIACCESS
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device_match,
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pci_probe
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#endif
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ms_device_match,
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ms_pci_probe,
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};
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static SymTabRec Chipsets[] = {
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{0x0046, "Intel Graphics Device"},
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{0, "kms" },
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{-1, NULL}
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};
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static PciChipsets PciDevices[] = {
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{0x2592, 0x0046, RES_SHARED_VGA},
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{-1, -1, RES_UNDEFINED}
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};
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typedef enum
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{
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OPTION_SW_CURSOR,
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OPTION_DEVICE_PATH,
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} modesettingOpts;
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static const OptionInfoRec Options[] = {
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{OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
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{OPTION_DEVICE_PATH, "kmsdev", OPTV_STRING, {0}, FALSE },
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{-1, NULL, OPTV_NONE, {0}, FALSE}
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};
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@ -171,6 +164,27 @@ Identify(int flags)
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Chipsets);
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}
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static Bool probe_hw(char *dev)
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{
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int fd;
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if (dev)
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fd = open(dev, O_RDWR, 0);
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else {
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dev = getenv("KMSDEVICE");
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if ((NULL == dev) || ((fd = open(dev, O_RDWR, 0)) == -1)) {
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dev = "/dev/dri/card0";
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fd = open(dev,O_RDWR, 0);
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}
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}
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if (fd == -1) {
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xf86DrvMsg(-1, X_ERROR,"open %s: %s\n", dev, strerror(errno));
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return FALSE;
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}
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close(fd);
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return TRUE;
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}
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static const OptionInfoRec *
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AvailableOptions(int chipid, int busid)
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{
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@ -179,25 +193,26 @@ AvailableOptions(int chipid, int busid)
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#if XSERVER_LIBPCIACCESS
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static Bool
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pci_probe(DriverPtr driver,
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int entity_num, struct pci_device *device, intptr_t match_data)
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ms_pci_probe(DriverPtr driver,
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int entity_num, struct pci_device *dev, intptr_t match_data)
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{
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ScrnInfoPtr scrn = NULL;
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EntityInfoPtr entity;
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DevUnion *private;
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scrn = xf86ConfigPciEntity(scrn, 0, entity_num, PciDevices,
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scrn = xf86ConfigPciEntity(scrn, 0, entity_num, NULL,
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NULL, NULL, NULL, NULL, NULL);
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if (scrn != NULL) {
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scrn->driverVersion = 1;
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scrn->driverName = "modesetting";
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scrn->name = "modesetting";
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scrn->Probe = NULL;
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if (scrn) {
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char *devpath;
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GDevPtr devSection = xf86GetDevFromEntity(scrn->entityList[0],
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scrn->entityInstanceList[0]);
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entity = xf86GetEntityInfo(entity_num);
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switch (device->device_id) {
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case 0x0046:
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devpath = xf86FindOptionValue(devSection->options, "kmsdev");
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if (probe_hw(devpath)) {
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scrn->driverVersion = 1;
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scrn->driverName = "modesetting";
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scrn->name = "modeset";
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scrn->Probe = NULL;
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scrn->PreInit = PreInit;
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scrn->ScreenInit = ScreenInit;
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scrn->SwitchMode = SwitchMode;
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@ -206,12 +221,19 @@ pci_probe(DriverPtr driver,
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scrn->LeaveVT = LeaveVT;
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scrn->FreeScreen = FreeScreen;
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scrn->ValidMode = ValidMode;
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break;
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}
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xf86DrvMsg(scrn->scrnIndex, X_CONFIG,
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"claimed PCI slot %d@%d:%d:%d\n",
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dev->bus, dev->domain, dev->dev, dev->func);
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xf86DrvMsg(scrn->scrnIndex, X_INFO,
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"using %s\n", devpath ? devpath : "default device");
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} else
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scrn = NULL;
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}
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return scrn != NULL;
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}
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#else
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#endif
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static Bool
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Probe(DriverPtr drv, int flags)
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{
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@ -220,9 +242,13 @@ Probe(DriverPtr drv, int flags)
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DevUnion *pPriv;
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GDevPtr *devSections;
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Bool foundScreen = FALSE;
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pciVideoPtr *VideoInfo;
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pciVideoPtr *ppPci;
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int numDevs;
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char *dev;
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ScrnInfoPtr scrn;
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/* For now, just bail out for PROBE_DETECT. */
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if (flags & PROBE_DETECT)
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return FALSE;
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/*
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* Find the config file Device sections that match this
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@ -232,110 +258,41 @@ Probe(DriverPtr drv, int flags)
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return FALSE;
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}
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/*
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* This probing is just checking the PCI data the server already
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* collected.
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*/
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if (!(VideoInfo = xf86GetPciVideoInfo()))
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return FALSE;
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for (i = 0; i < numDevSections; i++) {
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#if 0
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numUsed = 0;
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for (ppPci = VideoInfo; ppPci != NULL && *ppPci != NULL; ppPci++) {
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for (numDevs = 0; numDevs < numDevSections; numDevs++) {
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if (devSections[numDevs]->busID && *devSections[numDevs]->busID) {
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if (xf86ComparePciBusString
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(devSections[numDevs]->busID, (*ppPci)->bus,
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(*ppPci)->device, (*ppPci)->func)) {
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/* Claim slot */
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if (xf86CheckPciSlot((*ppPci)->bus, (*ppPci)->device,
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(*ppPci)->func)) {
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usedChips[numUsed++] =
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xf86ClaimPciSlot((*ppPci)->bus, (*ppPci)->device,
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(*ppPci)->func, drv,
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(*ppPci)->chipType, NULL, TRUE);
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ErrorF("CLAIMED %d %d %d\n", (*ppPci)->bus,
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(*ppPci)->device, (*ppPci)->func);
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}
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}
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dev = xf86FindOptionValue(devSections[i]->options,"kmsdev");
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if (devSections[i]->busID) {
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if (probe_hw(dev)) {
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int entity;
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entity = xf86ClaimFbSlot(drv, 0, devSections[i], TRUE);
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scrn = xf86ConfigFbEntity(scrn, 0, entity,
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NULL, NULL, NULL, NULL);
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}
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}
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}
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#else
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/* Look for Intel i8xx devices. */
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numUsed = xf86MatchPciInstances("modesetting", PCI_VENDOR_INTEL,
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Chipsets, PciDevices,
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devSections, numDevSections,
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drv, &usedChips);
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#endif
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if (flags & PROBE_DETECT) {
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if (numUsed > 0)
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foundScreen = TRUE;
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} else {
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for (i = 0; i < numUsed; i++) {
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ScrnInfoPtr pScrn = NULL;
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/* Allocate new ScrnInfoRec and claim the slot */
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if ((pScrn = xf86ConfigPciEntity(pScrn, 0, usedChips[i],
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PciDevices, NULL, NULL, NULL,
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NULL, NULL))) {
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EntityInfoPtr pEnt;
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pEnt = xf86GetEntityInfo(usedChips[i]);
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pScrn->driverVersion = 1;
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pScrn->driverName = "modesetting";
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pScrn->name = "modesetting";
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pScrn->Probe = Probe;
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if (scrn)
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foundScreen = TRUE;
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{
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/* Allocate an entity private if necessary */
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if (modesettingEntityIndex < 0)
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modesettingEntityIndex =
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xf86AllocateEntityPrivateIndex();
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scrn->driverVersion = 1;
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scrn->driverName = "modesetting";
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scrn->name = "modesetting";
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scrn->Probe = Probe;
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scrn->PreInit = PreInit;
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scrn->ScreenInit = ScreenInit;
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scrn->SwitchMode = SwitchMode;
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scrn->AdjustFrame = AdjustFrame;
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scrn->EnterVT = EnterVT;
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scrn->LeaveVT = LeaveVT;
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scrn->FreeScreen = FreeScreen;
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scrn->ValidMode = ValidMode;
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pPriv = xf86GetEntityPrivate(pScrn->entityList[0],
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modesettingEntityIndex);
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if (!pPriv->ptr) {
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pPriv->ptr = xnfcalloc(sizeof(EntRec), 1);
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msEnt = pPriv->ptr;
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msEnt->lastInstance = -1;
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} else {
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msEnt = pPriv->ptr;
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}
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/*
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* Set the entity instance for this instance of the driver.
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* For dual head per card, instance 0 is the "master"
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* instance, driving the primary head, and instance 1 is
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* the "slave".
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*/
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msEnt->lastInstance++;
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xf86SetEntityInstanceForScreen(pScrn,
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pScrn->entityList[0],
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msEnt->lastInstance);
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pScrn->PreInit = PreInit;
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pScrn->ScreenInit = ScreenInit;
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pScrn->SwitchMode = SwitchMode;
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pScrn->AdjustFrame = AdjustFrame;
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pScrn->EnterVT = EnterVT;
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pScrn->LeaveVT = LeaveVT;
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pScrn->FreeScreen = FreeScreen;
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pScrn->ValidMode = ValidMode;
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break;
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}
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} else
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ErrorF("FAILED PSCRN\n");
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xf86DrvMsg(scrn->scrnIndex, X_INFO,
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"using %s\n", dev ? dev : "default device");
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}
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}
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free(usedChips);
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free(devSections);
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return foundScreen;
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}
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#endif
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static Bool
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GetRec(ScrnInfoPtr pScrn)
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