* Jerome Glisse
*/
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "drmP.h"
#include "radeon_drm.h"
#include "radeon_reg.h"
int radeon_debugfs_ib_init(struct radeon_device *rdev);
+void radeon_ib_bogus_cleanup(struct radeon_device *rdev)
+{
+ struct radeon_ib *ib, *n;
+
+ list_for_each_entry_safe(ib, n, &rdev->ib_pool.bogus_ib, list) {
+ list_del(&ib->list);
+ vfree(ib->ptr);
+ kfree(ib);
+ }
+}
+
+void radeon_ib_bogus_add(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+ struct radeon_ib *bib;
+
+ bib = kmalloc(sizeof(*bib), GFP_KERNEL);
+ if (bib == NULL)
+ return;
+ bib->ptr = vmalloc(ib->length_dw * 4);
+ if (bib->ptr == NULL) {
+ kfree(bib);
+ return;
+ }
+ memcpy(bib->ptr, ib->ptr, ib->length_dw * 4);
+ bib->length_dw = ib->length_dw;
+ mutex_lock(&rdev->ib_pool.mutex);
+ list_add_tail(&bib->list, &rdev->ib_pool.bogus_ib);
+ mutex_unlock(&rdev->ib_pool.mutex);
+}
+
/*
* IB.
*/
{
struct radeon_fence *fence;
struct radeon_ib *nib;
- unsigned long i;
- int r = 0;
+ int r = 0, i, c;
*ib = NULL;
r = radeon_fence_create(rdev, &fence);
if (r) {
- DRM_ERROR("failed to create fence for new IB\n");
+ dev_err(rdev->dev, "failed to create fence for new IB\n");
return r;
}
mutex_lock(&rdev->ib_pool.mutex);
- i = find_first_zero_bit(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
- if (i < RADEON_IB_POOL_SIZE) {
- set_bit(i, rdev->ib_pool.alloc_bm);
- rdev->ib_pool.ibs[i].length_dw = 0;
- *ib = &rdev->ib_pool.ibs[i];
- goto out;
- }
- if (list_empty(&rdev->ib_pool.scheduled_ibs)) {
- /* we go do nothings here */
- DRM_ERROR("all IB allocated none scheduled.\n");
- r = -EINVAL;
- goto out;
+ for (i = rdev->ib_pool.head_id, c = 0, nib = NULL; c < RADEON_IB_POOL_SIZE; c++, i++) {
+ i &= (RADEON_IB_POOL_SIZE - 1);
+ if (rdev->ib_pool.ibs[i].free) {
+ nib = &rdev->ib_pool.ibs[i];
+ break;
+ }
}
- /* get the first ib on the scheduled list */
- nib = list_entry(rdev->ib_pool.scheduled_ibs.next,
- struct radeon_ib, list);
- if (nib->fence == NULL) {
- /* we go do nothings here */
- DRM_ERROR("IB %lu scheduled without a fence.\n", nib->idx);
- r = -EINVAL;
- goto out;
+ if (nib == NULL) {
+ /* This should never happen, it means we allocated all
+ * IB and haven't scheduled one yet, return EBUSY to
+ * userspace hoping that on ioctl recall we get better
+ * luck
+ */
+ dev_err(rdev->dev, "no free indirect buffer !\n");
+ mutex_unlock(&rdev->ib_pool.mutex);
+ radeon_fence_unref(&fence);
+ return -EBUSY;
}
- r = radeon_fence_wait(nib->fence, false);
- if (r) {
- DRM_ERROR("radeon: IB(%lu:0x%016lX:%u)\n", nib->idx,
- (unsigned long)nib->gpu_addr, nib->length_dw);
- DRM_ERROR("radeon: GPU lockup detected, fail to get a IB\n");
- goto out;
+ rdev->ib_pool.head_id = (nib->idx + 1) & (RADEON_IB_POOL_SIZE - 1);
+ nib->free = false;
+ if (nib->fence) {
+ mutex_unlock(&rdev->ib_pool.mutex);
+ r = radeon_fence_wait(nib->fence, false);
+ if (r) {
+ dev_err(rdev->dev, "error waiting fence of IB(%u:0x%016lX:%u)\n",
+ nib->idx, (unsigned long)nib->gpu_addr, nib->length_dw);
+ mutex_lock(&rdev->ib_pool.mutex);
+ nib->free = true;
+ mutex_unlock(&rdev->ib_pool.mutex);
+ radeon_fence_unref(&fence);
+ return r;
+ }
+ mutex_lock(&rdev->ib_pool.mutex);
}
radeon_fence_unref(&nib->fence);
+ nib->fence = fence;
nib->length_dw = 0;
- list_del(&nib->list);
- INIT_LIST_HEAD(&nib->list);
- *ib = nib;
-out:
mutex_unlock(&rdev->ib_pool.mutex);
- if (r) {
- radeon_fence_unref(&fence);
- } else {
- (*ib)->fence = fence;
- }
- return r;
+ *ib = nib;
+ return 0;
}
void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib)
if (tmp == NULL) {
return;
}
- mutex_lock(&rdev->ib_pool.mutex);
- if (!list_empty(&tmp->list) && !radeon_fence_signaled(tmp->fence)) {
- /* IB is scheduled & not signaled don't do anythings */
- mutex_unlock(&rdev->ib_pool.mutex);
- return;
- }
- list_del(&tmp->list);
- INIT_LIST_HEAD(&tmp->list);
- if (tmp->fence) {
+ if (!tmp->fence->emited)
radeon_fence_unref(&tmp->fence);
- }
- tmp->length_dw = 0;
- clear_bit(tmp->idx, rdev->ib_pool.alloc_bm);
+ mutex_lock(&rdev->ib_pool.mutex);
+ tmp->free = true;
mutex_unlock(&rdev->ib_pool.mutex);
}
-static void radeon_ib_align(struct radeon_device *rdev, struct radeon_ib *ib)
-{
- while ((ib->length_dw & rdev->cp.align_mask)) {
- ib->ptr[ib->length_dw++] = PACKET2(0);
- }
-}
-
int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib)
{
int r = 0;
- mutex_lock(&rdev->ib_pool.mutex);
- radeon_ib_align(rdev, ib);
if (!ib->length_dw || !rdev->cp.ready) {
/* TODO: Nothings in the ib we should report. */
- mutex_unlock(&rdev->ib_pool.mutex);
- DRM_ERROR("radeon: couldn't schedule IB(%lu).\n", ib->idx);
+ DRM_ERROR("radeon: couldn't schedule IB(%u).\n", ib->idx);
return -EINVAL;
}
+
/* 64 dwords should be enough for fence too */
r = radeon_ring_lock(rdev, 64);
if (r) {
DRM_ERROR("radeon: scheduling IB failled (%d).\n", r);
- mutex_unlock(&rdev->ib_pool.mutex);
return r;
}
- radeon_ring_write(rdev, PACKET0(RADEON_CP_IB_BASE, 1));
- radeon_ring_write(rdev, ib->gpu_addr);
- radeon_ring_write(rdev, ib->length_dw);
+ radeon_ring_ib_execute(rdev, ib);
radeon_fence_emit(rdev, ib->fence);
- radeon_ring_unlock_commit(rdev);
- list_add_tail(&ib->list, &rdev->ib_pool.scheduled_ibs);
+ mutex_lock(&rdev->ib_pool.mutex);
+ /* once scheduled IB is considered free and protected by the fence */
+ ib->free = true;
mutex_unlock(&rdev->ib_pool.mutex);
+ radeon_ring_unlock_commit(rdev);
return 0;
}
int i;
int r = 0;
+ if (rdev->ib_pool.robj)
+ return 0;
+ INIT_LIST_HEAD(&rdev->ib_pool.bogus_ib);
/* Allocate 1M object buffer */
- INIT_LIST_HEAD(&rdev->ib_pool.scheduled_ibs);
- r = radeon_object_create(rdev, NULL, RADEON_IB_POOL_SIZE*64*1024,
- true, RADEON_GEM_DOMAIN_GTT,
- false, &rdev->ib_pool.robj);
+ r = radeon_bo_create(rdev, NULL, RADEON_IB_POOL_SIZE*64*1024,
+ true, RADEON_GEM_DOMAIN_GTT,
+ &rdev->ib_pool.robj);
if (r) {
DRM_ERROR("radeon: failed to ib pool (%d).\n", r);
return r;
}
- r = radeon_object_pin(rdev->ib_pool.robj, RADEON_GEM_DOMAIN_GTT, &gpu_addr);
+ r = radeon_bo_reserve(rdev->ib_pool.robj, false);
+ if (unlikely(r != 0))
+ return r;
+ r = radeon_bo_pin(rdev->ib_pool.robj, RADEON_GEM_DOMAIN_GTT, &gpu_addr);
if (r) {
+ radeon_bo_unreserve(rdev->ib_pool.robj);
DRM_ERROR("radeon: failed to pin ib pool (%d).\n", r);
return r;
}
- r = radeon_object_kmap(rdev->ib_pool.robj, &ptr);
+ r = radeon_bo_kmap(rdev->ib_pool.robj, &ptr);
+ radeon_bo_unreserve(rdev->ib_pool.robj);
if (r) {
DRM_ERROR("radeon: failed to map ib poll (%d).\n", r);
return r;
rdev->ib_pool.ibs[i].ptr = ptr + offset;
rdev->ib_pool.ibs[i].idx = i;
rdev->ib_pool.ibs[i].length_dw = 0;
- INIT_LIST_HEAD(&rdev->ib_pool.ibs[i].list);
+ rdev->ib_pool.ibs[i].free = true;
}
- bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
+ rdev->ib_pool.head_id = 0;
rdev->ib_pool.ready = true;
DRM_INFO("radeon: ib pool ready.\n");
if (radeon_debugfs_ib_init(rdev)) {
void radeon_ib_pool_fini(struct radeon_device *rdev)
{
+ int r;
+ struct radeon_bo *robj;
+
if (!rdev->ib_pool.ready) {
return;
}
mutex_lock(&rdev->ib_pool.mutex);
- bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
- if (rdev->ib_pool.robj) {
- radeon_object_kunmap(rdev->ib_pool.robj);
- radeon_object_unref(&rdev->ib_pool.robj);
- rdev->ib_pool.robj = NULL;
- }
+ radeon_ib_bogus_cleanup(rdev);
+ robj = rdev->ib_pool.robj;
+ rdev->ib_pool.robj = NULL;
mutex_unlock(&rdev->ib_pool.mutex);
-}
-int radeon_ib_test(struct radeon_device *rdev)
-{
- struct radeon_ib *ib;
- uint32_t scratch;
- uint32_t tmp = 0;
- unsigned i;
- int r;
-
- r = radeon_scratch_get(rdev, &scratch);
- if (r) {
- DRM_ERROR("radeon: failed to get scratch reg (%d).\n", r);
- return r;
- }
- WREG32(scratch, 0xCAFEDEAD);
- r = radeon_ib_get(rdev, &ib);
- if (r) {
- return r;
- }
- ib->ptr[0] = PACKET0(scratch, 0);
- ib->ptr[1] = 0xDEADBEEF;
- ib->ptr[2] = PACKET2(0);
- ib->ptr[3] = PACKET2(0);
- ib->ptr[4] = PACKET2(0);
- ib->ptr[5] = PACKET2(0);
- ib->ptr[6] = PACKET2(0);
- ib->ptr[7] = PACKET2(0);
- ib->length_dw = 8;
- r = radeon_ib_schedule(rdev, ib);
- if (r) {
- radeon_scratch_free(rdev, scratch);
- radeon_ib_free(rdev, &ib);
- return r;
- }
- r = radeon_fence_wait(ib->fence, false);
- if (r) {
- return r;
- }
- for (i = 0; i < rdev->usec_timeout; i++) {
- tmp = RREG32(scratch);
- if (tmp == 0xDEADBEEF) {
- break;
+ if (robj) {
+ r = radeon_bo_reserve(robj, false);
+ if (likely(r == 0)) {
+ radeon_bo_kunmap(robj);
+ radeon_bo_unpin(robj);
+ radeon_bo_unreserve(robj);
}
- DRM_UDELAY(1);
+ radeon_bo_unref(&robj);
}
- if (i < rdev->usec_timeout) {
- DRM_INFO("ib test succeeded in %u usecs\n", i);
- } else {
- DRM_ERROR("radeon: ib test failed (sracth(0x%04X)=0x%08X)\n",
- scratch, tmp);
- r = -EINVAL;
- }
- radeon_scratch_free(rdev, scratch);
- radeon_ib_free(rdev, &ib);
- return r;
}
*/
void radeon_ring_free_size(struct radeon_device *rdev)
{
- rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
+ if (rdev->family >= CHIP_R600)
+ rdev->cp.rptr = RREG32(R600_CP_RB_RPTR);
+ else
+ rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
/* This works because ring_size is a power of 2 */
rdev->cp.ring_free_dw = (rdev->cp.rptr + (rdev->cp.ring_size / 4));
rdev->cp.ring_free_dw -= rdev->cp.wptr;
}
}
-int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
+int radeon_ring_alloc(struct radeon_device *rdev, unsigned ndw)
{
int r;
/* Align requested size with padding so unlock_commit can
* pad safely */
ndw = (ndw + rdev->cp.align_mask) & ~rdev->cp.align_mask;
- mutex_lock(&rdev->cp.mutex);
while (ndw > (rdev->cp.ring_free_dw - 1)) {
radeon_ring_free_size(rdev);
if (ndw < rdev->cp.ring_free_dw) {
break;
}
r = radeon_fence_wait_next(rdev);
- if (r) {
- mutex_unlock(&rdev->cp.mutex);
+ if (r)
return r;
- }
}
rdev->cp.count_dw = ndw;
rdev->cp.wptr_old = rdev->cp.wptr;
return 0;
}
-void radeon_ring_unlock_commit(struct radeon_device *rdev)
+int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
+{
+ int r;
+
+ mutex_lock(&rdev->cp.mutex);
+ r = radeon_ring_alloc(rdev, ndw);
+ if (r) {
+ mutex_unlock(&rdev->cp.mutex);
+ return r;
+ }
+ return 0;
+}
+
+void radeon_ring_commit(struct radeon_device *rdev)
{
unsigned count_dw_pad;
unsigned i;
count_dw_pad = (rdev->cp.align_mask + 1) -
(rdev->cp.wptr & rdev->cp.align_mask);
for (i = 0; i < count_dw_pad; i++) {
- radeon_ring_write(rdev, PACKET2(0));
+ radeon_ring_write(rdev, 2 << 30);
}
DRM_MEMORYBARRIER();
- WREG32(RADEON_CP_RB_WPTR, rdev->cp.wptr);
- (void)RREG32(RADEON_CP_RB_WPTR);
- mutex_unlock(&rdev->cp.mutex);
+ radeon_cp_commit(rdev);
}
-void radeon_ring_unlock_undo(struct radeon_device *rdev)
+void radeon_ring_unlock_commit(struct radeon_device *rdev)
{
- rdev->cp.wptr = rdev->cp.wptr_old;
+ radeon_ring_commit(rdev);
mutex_unlock(&rdev->cp.mutex);
}
-int radeon_ring_test(struct radeon_device *rdev)
+void radeon_ring_unlock_undo(struct radeon_device *rdev)
{
- uint32_t scratch;
- uint32_t tmp = 0;
- unsigned i;
- int r;
-
- r = radeon_scratch_get(rdev, &scratch);
- if (r) {
- DRM_ERROR("radeon: cp failed to get scratch reg (%d).\n", r);
- return r;
- }
- WREG32(scratch, 0xCAFEDEAD);
- r = radeon_ring_lock(rdev, 2);
- if (r) {
- DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
- radeon_scratch_free(rdev, scratch);
- return r;
- }
- radeon_ring_write(rdev, PACKET0(scratch, 0));
- radeon_ring_write(rdev, 0xDEADBEEF);
- radeon_ring_unlock_commit(rdev);
- for (i = 0; i < rdev->usec_timeout; i++) {
- tmp = RREG32(scratch);
- if (tmp == 0xDEADBEEF) {
- break;
- }
- DRM_UDELAY(1);
- }
- if (i < rdev->usec_timeout) {
- DRM_INFO("ring test succeeded in %d usecs\n", i);
- } else {
- DRM_ERROR("radeon: ring test failed (sracth(0x%04X)=0x%08X)\n",
- scratch, tmp);
- r = -EINVAL;
- }
- radeon_scratch_free(rdev, scratch);
- return r;
+ rdev->cp.wptr = rdev->cp.wptr_old;
+ mutex_unlock(&rdev->cp.mutex);
}
int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size)
rdev->cp.ring_size = ring_size;
/* Allocate ring buffer */
if (rdev->cp.ring_obj == NULL) {
- r = radeon_object_create(rdev, NULL, rdev->cp.ring_size,
- true,
- RADEON_GEM_DOMAIN_GTT,
- false,
- &rdev->cp.ring_obj);
+ r = radeon_bo_create(rdev, NULL, rdev->cp.ring_size, true,
+ RADEON_GEM_DOMAIN_GTT,
+ &rdev->cp.ring_obj);
if (r) {
- DRM_ERROR("radeon: failed to create ring buffer (%d).\n", r);
- mutex_unlock(&rdev->cp.mutex);
+ dev_err(rdev->dev, "(%d) ring create failed\n", r);
return r;
}
- r = radeon_object_pin(rdev->cp.ring_obj,
- RADEON_GEM_DOMAIN_GTT,
- &rdev->cp.gpu_addr);
+ 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);
if (r) {
- DRM_ERROR("radeon: failed to pin ring buffer (%d).\n", r);
- mutex_unlock(&rdev->cp.mutex);
+ radeon_bo_unreserve(rdev->cp.ring_obj);
+ dev_err(rdev->dev, "(%d) ring pin failed\n", r);
return r;
}
- r = radeon_object_kmap(rdev->cp.ring_obj,
+ r = radeon_bo_kmap(rdev->cp.ring_obj,
(void **)&rdev->cp.ring);
+ radeon_bo_unreserve(rdev->cp.ring_obj);
if (r) {
- DRM_ERROR("radeon: failed to map ring buffer (%d).\n", r);
- mutex_unlock(&rdev->cp.mutex);
+ dev_err(rdev->dev, "(%d) ring map failed\n", r);
return r;
}
}
void radeon_ring_fini(struct radeon_device *rdev)
{
+ int r;
+ struct radeon_bo *ring_obj;
+
mutex_lock(&rdev->cp.mutex);
- if (rdev->cp.ring_obj) {
- radeon_object_kunmap(rdev->cp.ring_obj);
- radeon_object_unpin(rdev->cp.ring_obj);
- radeon_object_unref(&rdev->cp.ring_obj);
- rdev->cp.ring = NULL;
- rdev->cp.ring_obj = NULL;
- }
+ ring_obj = rdev->cp.ring_obj;
+ rdev->cp.ring = NULL;
+ rdev->cp.ring_obj = NULL;
mutex_unlock(&rdev->cp.mutex);
+
+ if (ring_obj) {
+ r = radeon_bo_reserve(ring_obj, false);
+ if (likely(r == 0)) {
+ radeon_bo_kunmap(ring_obj);
+ radeon_bo_unpin(ring_obj);
+ radeon_bo_unreserve(ring_obj);
+ }
+ radeon_bo_unref(&ring_obj);
+ }
}
if (ib == NULL) {
return 0;
}
- seq_printf(m, "IB %04lu\n", ib->idx);
+ seq_printf(m, "IB %04u\n", ib->idx);
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++) {
return 0;
}
+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;
+}
+
static struct drm_info_list radeon_debugfs_ib_list[RADEON_IB_POOL_SIZE];
static char radeon_debugfs_ib_names[RADEON_IB_POOL_SIZE][32];
+
+static struct drm_info_list radeon_debugfs_ib_bogus_info_list[] = {
+ {"radeon_ib_bogus", radeon_debugfs_ib_bogus_info, 0, NULL},
+};
#endif
int radeon_debugfs_ib_init(struct radeon_device *rdev)
{
#if defined(CONFIG_DEBUG_FS)
unsigned i;
+ int r;
+ 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;
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];
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff