KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

radeong: Change ioctl order, document it.

This commit is contained in:
Corbin Simpson 2009-12-02 11:34:00 -08:00
parent 08383af4c7
commit dad193d516
1 changed files with 32 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
src/gallium/winsys/drm/radeon/core/radeon_r300.c
View File

@ -154,27 +154,20 @@ static void do_ioctls(struct r300_winsys* winsys, int fd)
info.value = (unsigned long)⌖
/* First, get the number of pixel pipes */
info.request = RADEON_INFO_NUM_GB_PIPES;
retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
if (retval) {
fprintf(stderr, "%s: Failed to get GB pipe count, "
"error number %d\n", __FUNCTION__, retval);
exit(1);
}
winsys->gb_pipes = target;
/* get Z pipes */
info.request = RADEON_INFO_NUM_Z_PIPES;
retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
if (retval) {
fprintf(stderr, "%s: Failed to get GB pipe count, "
"error number %d\n", __FUNCTION__, retval);
exit(1);
}
winsys->z_pipes = target;
/* Then, get PCI ID */
/* We do things in a specific order here.
*
* First, the PCI ID. This is essential and should return usable numbers
* for all Radeons. If this fails, we probably got handed an FD for some
* non-Radeon card.
*
* The GB and Z pipe requests should always succeed, but they might not
* return sensical values for all chipsets, but that's alright because
* the pipe drivers already know that.
*
* The GEM info is actually bogus on the kernel side, as well as our side
* (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
* we don't actually use the info for anything yet.
* XXX update the above when we can safely use vram_size instead of vram_visible */
info.request = RADEON_INFO_DEVICE_ID;
retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
if (retval) {
@ -184,7 +177,24 @@ static void do_ioctls(struct r300_winsys* winsys, int fd)
}
winsys->pci_id = target;
/* Finally, retrieve MM info */
info.request = RADEON_INFO_NUM_GB_PIPES;
retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
if (retval) {
fprintf(stderr, "%s: Failed to get GB pipe count, "
"error number %d\n", __FUNCTION__, retval);
exit(1);
}
winsys->gb_pipes = target;
info.request = RADEON_INFO_NUM_Z_PIPES;
retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
if (retval) {
fprintf(stderr, "%s: Failed to get Z pipe count, "
"error number %d\n", __FUNCTION__, retval);
exit(1);
}
winsys->z_pipes = target;
retval = drmCommandWriteRead(fd, DRM_RADEON_GEM_INFO,
&gem_info, sizeof(gem_info));
if (retval) {