[PATCH xf86-video-amdgpu] amdgpu_probe: Do not close server managed drm fds
Hans de Goede
hdegoede at redhat.com
Tue Oct 18 14:48:40 UTC 2016
This fixes the xserver only seeing AMD/ATI devices supported by the amdgpu
driver, as by the time xf86-video-ati gets a chance to probe them, the
fd has been closed.
This fixes e.g. Xorg not seeing the dGPU on a Lenovo Thinkpad E465 laptop
with a CARRIZO iGPU and a HAINAN dGPU.
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
src/amdgpu_probe.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/src/amdgpu_probe.c b/src/amdgpu_probe.c
index 213d245..5d17fe5 100644
--- a/src/amdgpu_probe.c
+++ b/src/amdgpu_probe.c
@@ -142,6 +142,15 @@ static int amdgpu_kernel_open_fd(ScrnInfoPtr pScrn, char *busid,
return fd;
}
+static void amdgpu_kernel_close_fd(AMDGPUEntPtr pAMDGPUEnt)
+{
+#ifdef XF86_PDEV_SERVER_FD
+ if (!(pAMDGPUEnt->platform_dev &&
+ pAMDGPUEnt->platform_dev->flags & XF86_PDEV_SERVER_FD))
+#endif
+ drmClose(pAMDGPUEnt->fd);
+}
+
static Bool amdgpu_open_drm_master(ScrnInfoPtr pScrn, AMDGPUEntPtr pAMDGPUEnt,
char *busid)
{
@@ -164,7 +173,7 @@ static Bool amdgpu_open_drm_master(ScrnInfoPtr pScrn, AMDGPUEntPtr pAMDGPUEnt,
if (err != 0) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"[drm] failed to set drm interface version.\n");
- drmClose(pAMDGPUEnt->fd);
+ amdgpu_kernel_close_fd(pAMDGPUEnt);
return FALSE;
}
@@ -252,7 +261,7 @@ static Bool amdgpu_get_scrninfo(int entity_num, struct pci_device *pci_dev)
return TRUE;
error_amdgpu:
- drmClose(pAMDGPUEnt->fd);
+ amdgpu_kernel_close_fd(pAMDGPUEnt);
error_fd:
free(pPriv->ptr);
error:
@@ -347,6 +356,7 @@ amdgpu_platform_probe(DriverPtr pDriver,
pPriv->ptr = xnfcalloc(sizeof(AMDGPUEntRec), 1);
pAMDGPUEnt = pPriv->ptr;
+ pAMDGPUEnt->platform_dev = dev;
pAMDGPUEnt->fd = amdgpu_kernel_open_fd(pScrn, busid, dev);
if (pAMDGPUEnt->fd < 0)
goto error_fd;
@@ -365,7 +375,6 @@ amdgpu_platform_probe(DriverPtr pDriver,
pAMDGPUEnt = pPriv->ptr;
pAMDGPUEnt->fd_ref++;
}
- pAMDGPUEnt->platform_dev = dev;
xf86SetEntityInstanceForScreen(pScrn, pEnt->index,
xf86GetNumEntityInstances(pEnt->
@@ -377,7 +386,7 @@ amdgpu_platform_probe(DriverPtr pDriver,
return TRUE;
error_amdgpu:
- drmClose(pAMDGPUEnt->fd);
+ amdgpu_kernel_close_fd(pAMDGPUEnt);
error_fd:
free(pPriv->ptr);
error:
--
2.9.3
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