2009-06-05 06:42:42 -06:00
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/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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* Copyright 2009 Jerome Glisse.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alex Deucher
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* Jerome Glisse
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*/
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#include <linux/seq_file.h>
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#include "drmP.h"
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#include "radeon_drm.h"
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#include "radeon_reg.h"
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#include "radeon.h"
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#include "atom.h"
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int radeon_debugfs_ib_init(struct radeon_device *rdev);
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2010-01-28 10:22:31 -07:00
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void radeon_ib_bogus_cleanup(struct radeon_device *rdev)
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{
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struct radeon_ib *ib, *n;
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list_for_each_entry_safe(ib, n, &rdev->ib_pool.bogus_ib, list) {
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list_del(&ib->list);
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vfree(ib->ptr);
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kfree(ib);
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}
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}
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void radeon_ib_bogus_add(struct radeon_device *rdev, struct radeon_ib *ib)
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{
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struct radeon_ib *bib;
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bib = kmalloc(sizeof(*bib), GFP_KERNEL);
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if (bib == NULL)
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return;
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bib->ptr = vmalloc(ib->length_dw * 4);
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if (bib->ptr == NULL) {
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kfree(bib);
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return;
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}
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memcpy(bib->ptr, ib->ptr, ib->length_dw * 4);
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bib->length_dw = ib->length_dw;
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mutex_lock(&rdev->ib_pool.mutex);
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list_add_tail(&bib->list, &rdev->ib_pool.bogus_ib);
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mutex_unlock(&rdev->ib_pool.mutex);
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}
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2009-06-05 06:42:42 -06:00
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/*
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* IB.
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*/
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int radeon_ib_get(struct radeon_device *rdev, struct radeon_ib **ib)
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{
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struct radeon_fence *fence;
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struct radeon_ib *nib;
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2010-02-15 13:36:13 -07:00
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int r = 0, i, c;
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2009-06-05 06:42:42 -06:00
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*ib = NULL;
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r = radeon_fence_create(rdev, &fence);
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if (r) {
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2010-02-15 13:36:13 -07:00
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dev_err(rdev->dev, "failed to create fence for new IB\n");
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2009-06-05 06:42:42 -06:00
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return r;
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}
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mutex_lock(&rdev->ib_pool.mutex);
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2010-02-15 13:36:13 -07:00
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for (i = rdev->ib_pool.head_id, c = 0, nib = NULL; c < RADEON_IB_POOL_SIZE; c++, i++) {
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i &= (RADEON_IB_POOL_SIZE - 1);
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if (rdev->ib_pool.ibs[i].free) {
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nib = &rdev->ib_pool.ibs[i];
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break;
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}
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2009-06-05 06:42:42 -06:00
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}
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2010-02-15 13:36:13 -07:00
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if (nib == NULL) {
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/* This should never happen, it means we allocated all
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* IB and haven't scheduled one yet, return EBUSY to
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* userspace hoping that on ioctl recall we get better
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* luck
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*/
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dev_err(rdev->dev, "no free indirect buffer !\n");
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2009-09-14 19:12:56 -06:00
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mutex_unlock(&rdev->ib_pool.mutex);
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2010-02-15 13:36:13 -07:00
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radeon_fence_unref(&fence);
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return -EBUSY;
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2009-06-05 06:42:42 -06:00
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}
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2010-02-15 13:36:13 -07:00
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rdev->ib_pool.head_id = (nib->idx + 1) & (RADEON_IB_POOL_SIZE - 1);
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nib->free = false;
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if (nib->fence) {
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2009-09-14 19:12:56 -06:00
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mutex_unlock(&rdev->ib_pool.mutex);
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2010-02-15 13:36:13 -07:00
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r = radeon_fence_wait(nib->fence, false);
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if (r) {
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dev_err(rdev->dev, "error waiting fence of IB(%u:0x%016lX:%u)\n",
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nib->idx, (unsigned long)nib->gpu_addr, nib->length_dw);
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mutex_lock(&rdev->ib_pool.mutex);
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nib->free = true;
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mutex_unlock(&rdev->ib_pool.mutex);
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radeon_fence_unref(&fence);
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return r;
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}
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mutex_lock(&rdev->ib_pool.mutex);
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2009-06-05 06:42:42 -06:00
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}
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radeon_fence_unref(&nib->fence);
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2010-02-15 13:36:13 -07:00
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nib->fence = fence;
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2009-06-05 06:42:42 -06:00
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nib->length_dw = 0;
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2009-09-14 19:12:56 -06:00
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mutex_unlock(&rdev->ib_pool.mutex);
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2009-06-05 06:42:42 -06:00
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*ib = nib;
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2010-02-15 13:36:13 -07:00
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return 0;
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2009-06-05 06:42:42 -06:00
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}
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void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib)
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{
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struct radeon_ib *tmp = *ib;
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*ib = NULL;
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if (tmp == NULL) {
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return;
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}
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2010-02-18 06:13:29 -07:00
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if (!tmp->fence->emited)
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radeon_fence_unref(&tmp->fence);
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2009-06-05 06:42:42 -06:00
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mutex_lock(&rdev->ib_pool.mutex);
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2010-02-15 13:36:13 -07:00
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tmp->free = true;
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2009-06-05 06:42:42 -06:00
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mutex_unlock(&rdev->ib_pool.mutex);
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}
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int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib)
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{
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int r = 0;
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if (!ib->length_dw || !rdev->cp.ready) {
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/* TODO: Nothings in the ib we should report. */
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2010-02-15 13:36:13 -07:00
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DRM_ERROR("radeon: couldn't schedule IB(%u).\n", ib->idx);
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2009-06-05 06:42:42 -06:00
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return -EINVAL;
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}
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2009-09-14 19:12:56 -06:00
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2009-06-29 02:29:13 -06:00
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/* 64 dwords should be enough for fence too */
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2009-06-05 06:42:42 -06:00
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r = radeon_ring_lock(rdev, 64);
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if (r) {
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DRM_ERROR("radeon: scheduling IB failled (%d).\n", r);
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return r;
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}
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2009-09-07 18:10:24 -06:00
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radeon_ring_ib_execute(rdev, ib);
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2009-06-05 06:42:42 -06:00
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radeon_fence_emit(rdev, ib->fence);
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2009-09-14 19:12:56 -06:00
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mutex_lock(&rdev->ib_pool.mutex);
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2010-02-15 13:36:13 -07:00
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/* once scheduled IB is considered free and protected by the fence */
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ib->free = true;
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2009-06-05 06:42:42 -06:00
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mutex_unlock(&rdev->ib_pool.mutex);
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2009-09-14 19:12:56 -06:00
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radeon_ring_unlock_commit(rdev);
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2009-06-05 06:42:42 -06:00
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return 0;
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}
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int radeon_ib_pool_init(struct radeon_device *rdev)
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{
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void *ptr;
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uint64_t gpu_addr;
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int i;
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int r = 0;
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2009-09-11 07:35:22 -06:00
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if (rdev->ib_pool.robj)
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return 0;
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2010-01-28 10:22:31 -07:00
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INIT_LIST_HEAD(&rdev->ib_pool.bogus_ib);
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2009-06-05 06:42:42 -06:00
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/* Allocate 1M object buffer */
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2009-11-20 06:29:23 -07:00
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r = radeon_bo_create(rdev, NULL, RADEON_IB_POOL_SIZE*64*1024,
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true, RADEON_GEM_DOMAIN_GTT,
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&rdev->ib_pool.robj);
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2009-06-05 06:42:42 -06:00
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if (r) {
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DRM_ERROR("radeon: failed to ib pool (%d).\n", r);
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return r;
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}
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2009-11-20 06:29:23 -07:00
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r = radeon_bo_reserve(rdev->ib_pool.robj, false);
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if (unlikely(r != 0))
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return r;
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r = radeon_bo_pin(rdev->ib_pool.robj, RADEON_GEM_DOMAIN_GTT, &gpu_addr);
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2009-06-05 06:42:42 -06:00
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if (r) {
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2009-11-20 06:29:23 -07:00
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radeon_bo_unreserve(rdev->ib_pool.robj);
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2009-06-05 06:42:42 -06:00
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DRM_ERROR("radeon: failed to pin ib pool (%d).\n", r);
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return r;
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}
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2009-11-20 06:29:23 -07:00
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r = radeon_bo_kmap(rdev->ib_pool.robj, &ptr);
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radeon_bo_unreserve(rdev->ib_pool.robj);
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2009-06-05 06:42:42 -06:00
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if (r) {
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DRM_ERROR("radeon: failed to map ib poll (%d).\n", r);
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return r;
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}
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for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
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unsigned offset;
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offset = i * 64 * 1024;
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rdev->ib_pool.ibs[i].gpu_addr = gpu_addr + offset;
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rdev->ib_pool.ibs[i].ptr = ptr + offset;
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rdev->ib_pool.ibs[i].idx = i;
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rdev->ib_pool.ibs[i].length_dw = 0;
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2010-02-15 13:36:13 -07:00
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rdev->ib_pool.ibs[i].free = true;
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2009-06-05 06:42:42 -06:00
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}
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2010-02-15 13:36:13 -07:00
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rdev->ib_pool.head_id = 0;
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2009-06-05 06:42:42 -06:00
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rdev->ib_pool.ready = true;
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DRM_INFO("radeon: ib pool ready.\n");
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if (radeon_debugfs_ib_init(rdev)) {
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DRM_ERROR("Failed to register debugfs file for IB !\n");
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}
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return r;
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}
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void radeon_ib_pool_fini(struct radeon_device *rdev)
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{
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2009-11-20 06:29:23 -07:00
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int r;
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2009-06-05 06:42:42 -06:00
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if (!rdev->ib_pool.ready) {
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return;
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}
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mutex_lock(&rdev->ib_pool.mutex);
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2010-01-28 10:22:31 -07:00
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radeon_ib_bogus_cleanup(rdev);
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2010-02-24 20:44:04 -07:00
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2009-06-05 06:42:42 -06:00
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if (rdev->ib_pool.robj) {
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2009-11-20 06:29:23 -07:00
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r = radeon_bo_reserve(rdev->ib_pool.robj, false);
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if (likely(r == 0)) {
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radeon_bo_kunmap(rdev->ib_pool.robj);
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radeon_bo_unpin(rdev->ib_pool.robj);
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radeon_bo_unreserve(rdev->ib_pool.robj);
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}
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radeon_bo_unref(&rdev->ib_pool.robj);
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2009-06-05 06:42:42 -06:00
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rdev->ib_pool.robj = NULL;
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}
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mutex_unlock(&rdev->ib_pool.mutex);
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}
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/*
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* Ring.
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*/
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void radeon_ring_free_size(struct radeon_device *rdev)
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{
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2009-09-07 18:10:24 -06:00
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if (rdev->family >= CHIP_R600)
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rdev->cp.rptr = RREG32(R600_CP_RB_RPTR);
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else
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rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
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2009-06-05 06:42:42 -06:00
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/* This works because ring_size is a power of 2 */
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rdev->cp.ring_free_dw = (rdev->cp.rptr + (rdev->cp.ring_size / 4));
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rdev->cp.ring_free_dw -= rdev->cp.wptr;
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rdev->cp.ring_free_dw &= rdev->cp.ptr_mask;
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if (!rdev->cp.ring_free_dw) {
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rdev->cp.ring_free_dw = rdev->cp.ring_size / 4;
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}
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}
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int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
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{
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int r;
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/* Align requested size with padding so unlock_commit can
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* pad safely */
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ndw = (ndw + rdev->cp.align_mask) & ~rdev->cp.align_mask;
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mutex_lock(&rdev->cp.mutex);
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while (ndw > (rdev->cp.ring_free_dw - 1)) {
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radeon_ring_free_size(rdev);
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if (ndw < rdev->cp.ring_free_dw) {
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break;
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}
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r = radeon_fence_wait_next(rdev);
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if (r) {
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mutex_unlock(&rdev->cp.mutex);
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return r;
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}
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}
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rdev->cp.count_dw = ndw;
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rdev->cp.wptr_old = rdev->cp.wptr;
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return 0;
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}
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void radeon_ring_unlock_commit(struct radeon_device *rdev)
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{
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unsigned count_dw_pad;
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unsigned i;
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/* We pad to match fetch size */
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count_dw_pad = (rdev->cp.align_mask + 1) -
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(rdev->cp.wptr & rdev->cp.align_mask);
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for (i = 0; i < count_dw_pad; i++) {
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2009-09-07 18:10:24 -06:00
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radeon_ring_write(rdev, 2 << 30);
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2009-06-05 06:42:42 -06:00
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}
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DRM_MEMORYBARRIER();
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2009-09-07 18:10:24 -06:00
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radeon_cp_commit(rdev);
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2009-06-05 06:42:42 -06:00
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mutex_unlock(&rdev->cp.mutex);
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}
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void radeon_ring_unlock_undo(struct radeon_device *rdev)
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{
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rdev->cp.wptr = rdev->cp.wptr_old;
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mutex_unlock(&rdev->cp.mutex);
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}
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int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size)
|
|
|
|
{
|
|
|
|
int r;
|
|
|
|
|
|
|
|
rdev->cp.ring_size = ring_size;
|
|
|
|
/* Allocate ring buffer */
|
|
|
|
if (rdev->cp.ring_obj == NULL) {
|
2009-11-20 06:29:23 -07:00
|
|
|
r = radeon_bo_create(rdev, NULL, rdev->cp.ring_size, true,
|
|
|
|
RADEON_GEM_DOMAIN_GTT,
|
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|
|
&rdev->cp.ring_obj);
|
2009-06-05 06:42:42 -06:00
|
|
|
if (r) {
|
2009-11-20 06:29:23 -07:00
|
|
|
dev_err(rdev->dev, "(%d) ring create failed\n", r);
|
2009-06-05 06:42:42 -06:00
|
|
|
return r;
|
|
|
|
}
|
2009-11-20 06:29:23 -07:00
|
|
|
r = radeon_bo_reserve(rdev->cp.ring_obj, false);
|
|
|
|
if (unlikely(r != 0))
|
|
|
|
return r;
|
|
|
|
r = radeon_bo_pin(rdev->cp.ring_obj, RADEON_GEM_DOMAIN_GTT,
|
|
|
|
&rdev->cp.gpu_addr);
|
2009-06-05 06:42:42 -06:00
|
|
|
if (r) {
|
2009-11-20 06:29:23 -07:00
|
|
|
radeon_bo_unreserve(rdev->cp.ring_obj);
|
|
|
|
dev_err(rdev->dev, "(%d) ring pin failed\n", r);
|
2009-06-05 06:42:42 -06:00
|
|
|
return r;
|
|
|
|
}
|
2009-11-20 06:29:23 -07:00
|
|
|
r = radeon_bo_kmap(rdev->cp.ring_obj,
|
2009-06-05 06:42:42 -06:00
|
|
|
(void **)&rdev->cp.ring);
|
2009-11-20 06:29:23 -07:00
|
|
|
radeon_bo_unreserve(rdev->cp.ring_obj);
|
2009-06-05 06:42:42 -06:00
|
|
|
if (r) {
|
2009-11-20 06:29:23 -07:00
|
|
|
dev_err(rdev->dev, "(%d) ring map failed\n", r);
|
2009-06-05 06:42:42 -06:00
|
|
|
return r;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
rdev->cp.ptr_mask = (rdev->cp.ring_size / 4) - 1;
|
|
|
|
rdev->cp.ring_free_dw = rdev->cp.ring_size / 4;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void radeon_ring_fini(struct radeon_device *rdev)
|
|
|
|
{
|
2009-11-20 06:29:23 -07:00
|
|
|
int r;
|
|
|
|
|
2009-06-05 06:42:42 -06:00
|
|
|
mutex_lock(&rdev->cp.mutex);
|
|
|
|
if (rdev->cp.ring_obj) {
|
2009-11-20 06:29:23 -07:00
|
|
|
r = radeon_bo_reserve(rdev->cp.ring_obj, false);
|
|
|
|
if (likely(r == 0)) {
|
|
|
|
radeon_bo_kunmap(rdev->cp.ring_obj);
|
|
|
|
radeon_bo_unpin(rdev->cp.ring_obj);
|
|
|
|
radeon_bo_unreserve(rdev->cp.ring_obj);
|
|
|
|
}
|
|
|
|
radeon_bo_unref(&rdev->cp.ring_obj);
|
2009-06-05 06:42:42 -06:00
|
|
|
rdev->cp.ring = NULL;
|
|
|
|
rdev->cp.ring_obj = NULL;
|
|
|
|
}
|
|
|
|
mutex_unlock(&rdev->cp.mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Debugfs info
|
|
|
|
*/
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
|
|
static int radeon_debugfs_ib_info(struct seq_file *m, void *data)
|
|
|
|
{
|
|
|
|
struct drm_info_node *node = (struct drm_info_node *) m->private;
|
|
|
|
struct radeon_ib *ib = node->info_ent->data;
|
|
|
|
unsigned i;
|
|
|
|
|
|
|
|
if (ib == NULL) {
|
|
|
|
return 0;
|
|
|
|
}
|
2010-02-15 13:36:13 -07:00
|
|
|
seq_printf(m, "IB %04u\n", ib->idx);
|
2009-06-05 06:42:42 -06:00
|
|
|
seq_printf(m, "IB fence %p\n", ib->fence);
|
|
|
|
seq_printf(m, "IB size %05u dwords\n", ib->length_dw);
|
|
|
|
for (i = 0; i < ib->length_dw; i++) {
|
|
|
|
seq_printf(m, "[%05u]=0x%08X\n", i, ib->ptr[i]);
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-01-28 10:22:31 -07:00
|
|
|
static int radeon_debugfs_ib_bogus_info(struct seq_file *m, void *data)
|
|
|
|
{
|
|
|
|
struct drm_info_node *node = (struct drm_info_node *) m->private;
|
|
|
|
struct radeon_device *rdev = node->info_ent->data;
|
|
|
|
struct radeon_ib *ib;
|
|
|
|
unsigned i;
|
|
|
|
|
|
|
|
mutex_lock(&rdev->ib_pool.mutex);
|
|
|
|
if (list_empty(&rdev->ib_pool.bogus_ib)) {
|
|
|
|
mutex_unlock(&rdev->ib_pool.mutex);
|
|
|
|
seq_printf(m, "no bogus IB recorded\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
ib = list_first_entry(&rdev->ib_pool.bogus_ib, struct radeon_ib, list);
|
|
|
|
list_del_init(&ib->list);
|
|
|
|
mutex_unlock(&rdev->ib_pool.mutex);
|
|
|
|
seq_printf(m, "IB size %05u dwords\n", ib->length_dw);
|
|
|
|
for (i = 0; i < ib->length_dw; i++) {
|
|
|
|
seq_printf(m, "[%05u]=0x%08X\n", i, ib->ptr[i]);
|
|
|
|
}
|
|
|
|
vfree(ib->ptr);
|
|
|
|
kfree(ib);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-06-05 06:42:42 -06:00
|
|
|
static struct drm_info_list radeon_debugfs_ib_list[RADEON_IB_POOL_SIZE];
|
|
|
|
static char radeon_debugfs_ib_names[RADEON_IB_POOL_SIZE][32];
|
2010-01-28 10:22:31 -07:00
|
|
|
|
|
|
|
static struct drm_info_list radeon_debugfs_ib_bogus_info_list[] = {
|
|
|
|
{"radeon_ib_bogus", radeon_debugfs_ib_bogus_info, 0, NULL},
|
|
|
|
};
|
2009-06-05 06:42:42 -06:00
|
|
|
#endif
|
|
|
|
|
|
|
|
int radeon_debugfs_ib_init(struct radeon_device *rdev)
|
|
|
|
{
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
|
|
unsigned i;
|
2010-01-28 10:22:31 -07:00
|
|
|
int r;
|
2009-06-05 06:42:42 -06:00
|
|
|
|
2010-01-28 10:22:31 -07:00
|
|
|
radeon_debugfs_ib_bogus_info_list[0].data = rdev;
|
|
|
|
r = radeon_debugfs_add_files(rdev, radeon_debugfs_ib_bogus_info_list, 1);
|
|
|
|
if (r)
|
|
|
|
return r;
|
2009-06-05 06:42:42 -06:00
|
|
|
for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
|
|
|
|
sprintf(radeon_debugfs_ib_names[i], "radeon_ib_%04u", i);
|
|
|
|
radeon_debugfs_ib_list[i].name = radeon_debugfs_ib_names[i];
|
|
|
|
radeon_debugfs_ib_list[i].show = &radeon_debugfs_ib_info;
|
|
|
|
radeon_debugfs_ib_list[i].driver_features = 0;
|
|
|
|
radeon_debugfs_ib_list[i].data = &rdev->ib_pool.ibs[i];
|
|
|
|
}
|
|
|
|
return radeon_debugfs_add_files(rdev, radeon_debugfs_ib_list,
|
|
|
|
RADEON_IB_POOL_SIZE);
|
|
|
|
#else
|
|
|
|
return 0;
|
|
|
|
#endif
|
|
|
|
}
|