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/*
* Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
* VA Linux Systems Inc., Fremont, California.
*
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation on the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
* THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <fcntl.h>
/*
* Authors:
* Kevin E. Martin <martin@xfree86.org>
* Rickard E. Faith <faith@valinux.com>
* KMS support - Dave Airlie <airlied@redhat.com>
*/
#include "amdgpu_probe.h"
#include "amdgpu_version.h"
#include "amdgpu_drv.h"
#include "xf86.h"
#include "xf86drmMode.h"
#include "dri.h"
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <xf86_OSproc.h>
#endif
#include <xf86platformBus.h>
_X_EXPORT int gAMDGPUEntityIndex = -1;
/* Return the options for supported chipset 'n'; NULL otherwise */
static const OptionInfoRec *AMDGPUAvailableOptions(int chipid, int busid)
{
return AMDGPUOptionsWeak();
}
static SymTabRec AMDGPUAny[] = {
{ 0, "All GPUs supported by the amdgpu kernel driver" },
{ -1, NULL }
};
/* Return the string name for supported chipset 'n'; NULL otherwise. */
static void AMDGPUIdentify(int flags)
{
xf86PrintChipsets(AMDGPU_NAME, "Driver for AMD Radeon", AMDGPUAny);
}
static Bool amdgpu_device_matches(const drmDevicePtr device,
const struct pci_device *dev)
{
return (device->bustype == DRM_BUS_PCI &&
device->businfo.pci->domain == dev->domain &&
device->businfo.pci->bus == dev->bus &&
device->businfo.pci->dev == dev->dev &&
device->businfo.pci->func == dev->func);
}
static Bool amdgpu_kernel_mode_enabled(ScrnInfoPtr pScrn)
{
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(pScrn);
const char *busIdString = pAMDGPUEnt->busid;
int ret = drmCheckModesettingSupported(busIdString);
if (ret) {
if (xf86LoadKernelModule("amdgpukms"))
ret = drmCheckModesettingSupported(busIdString);
}
if (ret) {
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
"[KMS] drm report modesetting isn't supported.\n");
return FALSE;
}
#endif
xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
"[KMS] Kernel modesetting enabled.\n");
return TRUE;
}
static int amdgpu_kernel_open_fd(ScrnInfoPtr pScrn,
struct pci_device *pci_dev,
struct xf86_platform_device *platform_dev,
AMDGPUEntPtr pAMDGPUEnt)
{
#define MAX_DRM_DEVICES 64
drmDevicePtr devices[MAX_DRM_DEVICES];
struct pci_device *dev;
const char *path;
int fd = -1, i, ret;
if (platform_dev)
dev = platform_dev->pdev;
else
dev = pci_dev;
XNFasprintf(&pAMDGPUEnt->busid, "pci:%04x:%02x:%02x.%u",
dev->domain, dev->bus, dev->dev, dev->func);
if (platform_dev) {
#ifdef ODEV_ATTRIB_FD
fd = xf86_get_platform_device_int_attrib(platform_dev,
ODEV_ATTRIB_FD, -1);
if (fd != -1)
return fd;
#endif
#ifdef ODEV_ATTRIB_PATH
path = xf86_get_platform_device_attrib(platform_dev,
ODEV_ATTRIB_PATH);
fd = open(path, O_RDWR | O_CLOEXEC);
if (fd != -1)
return fd;
#endif
}
if (!amdgpu_kernel_mode_enabled(pScrn))
return -1;
ret = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
if (ret == -1) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"[drm] Failed to retrieve DRM devices information.\n");
return -1;
}
for (i = 0; i < ret; i++) {
if (amdgpu_device_matches(devices[i], dev) &&
devices[i]->available_nodes & (1 << DRM_NODE_PRIMARY)) {
path = devices[i]->nodes[DRM_NODE_PRIMARY];
fd = open(path, O_RDWR | O_CLOEXEC);
break;
}
}
drmFreeDevices(devices, ret);
if (fd == -1)
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"[drm] Failed to open DRM device for %s: %s\n",
pAMDGPUEnt->busid, strerror(errno));
return fd;
#undef MAX_DRM_DEVICES
}
void amdgpu_kernel_close_fd(AMDGPUEntPtr pAMDGPUEnt)
{
#if defined(XSERVER_PLATFORM_BUS) && defined(XF86_PDEV_SERVER_FD)
if (!(pAMDGPUEnt->platform_dev &&
pAMDGPUEnt->platform_dev->flags & XF86_PDEV_SERVER_FD))
#endif
close(pAMDGPUEnt->fd);
pAMDGPUEnt->fd = -1;
}
/* Pull a local version of the helper. It's available since 2.4.98 yet
* it may be too new for some distributions.
*/
static int local_drmIsMaster(int fd)
{
return drmAuthMagic(fd, 0) != -EACCES;
}
static Bool amdgpu_open_drm_master(ScrnInfoPtr pScrn,
struct pci_device *pci_dev,
struct xf86_platform_device *platform_dev,
AMDGPUEntPtr pAMDGPUEnt)
{
pAMDGPUEnt->fd = amdgpu_kernel_open_fd(pScrn, pci_dev, platform_dev, pAMDGPUEnt);
if (pAMDGPUEnt->fd == -1)
return FALSE;
/* Check that what we opened is a master or a master-capable FD */
if (!local_drmIsMaster(pAMDGPUEnt->fd)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"[drm] device is not DRM master.\n");
amdgpu_kernel_close_fd(pAMDGPUEnt);
return FALSE;
}
return TRUE;
}
static Bool amdgpu_device_setup(ScrnInfoPtr pScrn,
struct pci_device *pci_dev,
struct xf86_platform_device *platform_dev,
AMDGPUEntPtr pAMDGPUEnt)
{
uint32_t major_version;
uint32_t minor_version;
pAMDGPUEnt->platform_dev = platform_dev;
if (!amdgpu_open_drm_master(pScrn, pci_dev, platform_dev,
pAMDGPUEnt))
return FALSE;
if (amdgpu_device_initialize(pAMDGPUEnt->fd,
&major_version,
&minor_version,
&pAMDGPUEnt->pDev)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"amdgpu_device_initialize failed\n");
goto error_amdgpu;
}
return TRUE;
error_amdgpu:
amdgpu_kernel_close_fd(pAMDGPUEnt);
return FALSE;
}
static Bool
amdgpu_probe(ScrnInfoPtr pScrn, int entity_num,
struct pci_device *pci_dev, struct xf86_platform_device *dev)
{
EntityInfoPtr pEnt = NULL;
DevUnion *pPriv;
AMDGPUEntPtr pAMDGPUEnt;
if (!pScrn)
return FALSE;
pScrn->driverVersion = AMDGPU_VERSION_CURRENT;
pScrn->driverName = AMDGPU_DRIVER_NAME;
pScrn->name = AMDGPU_NAME;
pScrn->Probe = NULL;
pScrn->PreInit = AMDGPUPreInit_KMS;
pScrn->ScreenInit = AMDGPUScreenInit_KMS;
pScrn->SwitchMode = AMDGPUSwitchMode_KMS;
pScrn->AdjustFrame = AMDGPUAdjustFrame_KMS;
pScrn->EnterVT = AMDGPUEnterVT_KMS;
pScrn->LeaveVT = AMDGPULeaveVT_KMS;
pScrn->FreeScreen = AMDGPUFreeScreen_KMS;
pScrn->ValidMode = AMDGPUValidMode;
pEnt = xf86GetEntityInfo(entity_num);
/* Create a AMDGPUEntity for all chips, even with old single head
* Radeon, need to use pAMDGPUEnt for new monitor detection routines.
*/
xf86SetEntitySharable(entity_num);
if (gAMDGPUEntityIndex == -1)
gAMDGPUEntityIndex = xf86AllocateEntityPrivateIndex();
pPriv = xf86GetEntityPrivate(pEnt->index, gAMDGPUEntityIndex);
if (!pPriv->ptr) {
pPriv->ptr = xnfcalloc(sizeof(AMDGPUEntRec), 1);
if (!pPriv->ptr)
goto error;
pAMDGPUEnt = pPriv->ptr;
if (!amdgpu_device_setup(pScrn, pci_dev, dev, pAMDGPUEnt))
goto error;
pAMDGPUEnt->fd_ref = 1;
} else {
pAMDGPUEnt = pPriv->ptr;
if (pAMDGPUEnt->fd_ref == ARRAY_SIZE(pAMDGPUEnt->scrn)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Only up to %u Zaphod instances supported\n",
(unsigned)ARRAY_SIZE(pAMDGPUEnt->scrn));
goto error;
}
pAMDGPUEnt->fd_ref++;
}
xf86SetEntityInstanceForScreen(pScrn, pEnt->index,
xf86GetNumEntityInstances(pEnt->
index)
- 1);
free(pEnt);
return TRUE;
error:
free(pEnt);
return FALSE;
}
static Bool
amdgpu_pci_probe(DriverPtr pDriver,
int entity_num, struct pci_device *device, intptr_t match_data)
{
ScrnInfoPtr pScrn = xf86ConfigPciEntity(NULL, 0, entity_num, NULL,
NULL, NULL, NULL, NULL, NULL);
return amdgpu_probe(pScrn, entity_num, device, NULL);
}
static Bool AMDGPUDriverFunc(ScrnInfoPtr scrn, xorgDriverFuncOp op, void *data)
{
xorgHWFlags *flag;
switch (op) {
case GET_REQUIRED_HW_INTERFACES:
flag = (CARD32 *) data;
(*flag) = 0;
return TRUE;
#if XORG_VERSION_CURRENT > XORG_VERSION_NUMERIC(1,15,99,0,0)
case SUPPORTS_SERVER_FDS:
return TRUE;
#endif
default:
return FALSE;
}
}
#ifdef XSERVER_PLATFORM_BUS
static Bool
amdgpu_platform_probe(DriverPtr pDriver,
int entity_num, int flags,
struct xf86_platform_device *dev, intptr_t match_data)
{
ScrnInfoPtr pScrn;
int scr_flags = 0;
if (!dev->pdev)
return FALSE;
if (flags & PLATFORM_PROBE_GPU_SCREEN)
scr_flags = XF86_ALLOCATE_GPU_SCREEN;
pScrn = xf86AllocateScreen(pDriver, scr_flags);
if (xf86IsEntitySharable(entity_num))
xf86SetEntityShared(entity_num);
xf86AddEntityToScreen(pScrn, entity_num);
return amdgpu_probe(pScrn, entity_num, NULL, dev);
}
#endif
static const struct pci_id_match amdgpu_device_match[] = {
{0x1002, PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, 0, 0, 0},
{0, 0, 0},
};
DriverRec AMDGPU = {
AMDGPU_VERSION_CURRENT,
AMDGPU_DRIVER_NAME,
AMDGPUIdentify,
NULL,
AMDGPUAvailableOptions,
NULL,
0,
AMDGPUDriverFunc,
amdgpu_device_match,
amdgpu_pci_probe,
#ifdef XSERVER_PLATFORM_BUS
amdgpu_platform_probe
#endif
};
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