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/*
* Copyright © 2009 Corbin Simpson
* 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 the rights to use, copy, modify, merge, publish,
* distribute, sub license, 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 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 THE COPYRIGHT HOLDERS, AUTHORS
* AND/OR ITS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*/
/*
* Authors:
* Corbin Simpson <MostAwesomeDude@gmail.com>
* Joakim Sindholt <opensource@zhasha.com>
*/
#include "radeon_drm.h"
#include "radeon_r300.h"
#include "radeon_buffer.h"
#include "radeon_drm_public.h"
#include "r300_winsys.h"
#include "util/u_memory.h"
#include "xf86drm.h"
#include <sys/ioctl.h>
static struct radeon_libdrm_winsys *
radeon_winsys_create(int fd)
{
struct radeon_libdrm_winsys *rws;
rws = CALLOC_STRUCT(radeon_libdrm_winsys);
if (rws == NULL) {
return NULL;
}
rws->fd = fd;
return rws;
}
/* Helper function to do the ioctls needed for setup and init. */
static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
{
struct drm_radeon_gem_info gem_info = {0};
struct drm_radeon_info info = {0};
int target = 0;
int retval;
drmVersionPtr version;
info.value = (unsigned long)⌖
/* We do things in a specific order here.
*
* DRM version first. We need to be sure we're running on a KMS chipset.
* This is also for some features.
*
* Then, 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. */
version = drmGetVersion(fd);
if (version->version_major != 2) {
fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is "
"only compatible with 2.x.x\n", __FUNCTION__,
version->version_major, version->version_minor,
version->version_patchlevel);
drmFreeVersion(version);
exit(1);
}
/* XXX Remove this ifdef when libdrm version 2.4.19 becomes mandatory. */
#ifdef RADEON_BO_FLAGS_MICRO_TILE_SQUARE
// Supported since 2.1.0.
winsys->squaretiling = version->version_major > 2 ||
version->version_minor >= 1;
#endif
winsys->drm_2_3_0 = version->version_major > 2 ||
version->version_minor >= 3;
info.request = RADEON_INFO_DEVICE_ID;
retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
if (retval) {
fprintf(stderr, "%s: Failed to get PCI ID, "
"error number %d\n", __FUNCTION__, retval);
exit(1);
}
winsys->pci_id = target;
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;
winsys->hyperz = FALSE;
#ifndef RADEON_INFO_WANT_HYPERZ
#define RADEON_INFO_WANT_HYPERZ 7
#endif
info.request = RADEON_INFO_WANT_HYPERZ;
retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
if (!retval && target == 1) {
winsys->hyperz = TRUE;
}
retval = drmCommandWriteRead(fd, DRM_RADEON_GEM_INFO,
&gem_info, sizeof(gem_info));
if (retval) {
fprintf(stderr, "%s: Failed to get MM info, error number %d\n",
__FUNCTION__, retval);
exit(1);
}
winsys->gart_size = gem_info.gart_size;
winsys->vram_size = gem_info.vram_size;
debug_printf("radeon: Successfully grabbed chipset info from kernel!\n"
"radeon: DRM version: %d.%d.%d ID: 0x%04x GB: %d Z: %d\n"
"radeon: GART size: %d MB VRAM size: %d MB\n",
version->version_major, version->version_minor,
version->version_patchlevel, winsys->pci_id,
winsys->gb_pipes, winsys->z_pipes,
winsys->gart_size / 1024 / 1024,
winsys->vram_size / 1024 / 1024);
drmFreeVersion(version);
}
/* Create a pipe_screen. */
struct r300_winsys_screen* r300_drm_winsys_screen_create(int drmFB)
{
struct radeon_libdrm_winsys* rws;
boolean ret;
rws = radeon_winsys_create(drmFB);
if (!rws)
return NULL;
do_ioctls(drmFB, rws);
/* The state tracker can organize a softpipe fallback if no hw
* driver is found.
*/
if (is_r3xx(rws->pci_id)) {
ret = radeon_setup_winsys(drmFB, rws);
if (ret == FALSE)
goto fail;
return &rws->base;
}
fail:
FREE(rws);
return NULL;
}
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