drm/amdgpu: Add debugfs entry for printing VM info

Create new debugfs entry to print memory info using VM buffer
objects.

V2: Added Common function for printing BO info.
    Dump more VM lists for evicted, moved, relocated, invalidated.
    Removed dumping VM mapped BOs.
V3: Fixed coding style comments, renamed print API and variables.
V4: Fixed coding style comments.

Signed-off-by: Mihir Bhogilal Patel <Mihir.Patel@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mihir Bhogilal Patel 2020-10-08 15:46:38 +05:30 committed by Alex Deucher
parent ded08454e5
commit ff72bc4031
6 changed files with 199 additions and 62 deletions

View File

@ -1335,11 +1335,41 @@ static int amdgpu_debugfs_evict_gtt(struct seq_file *m, void *data)
return 0;
}
static int amdgpu_debugfs_vm_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct drm_file *file;
int r;
r = mutex_lock_interruptible(&dev->filelist_mutex);
if (r)
return r;
list_for_each_entry(file, &dev->filelist, lhead) {
struct amdgpu_fpriv *fpriv = file->driver_priv;
struct amdgpu_vm *vm = &fpriv->vm;
seq_printf(m, "pid:%d\tProcess:%s ----------\n",
vm->task_info.pid, vm->task_info.process_name);
r = amdgpu_bo_reserve(vm->root.base.bo, true);
if (r)
break;
amdgpu_debugfs_vm_bo_info(vm, m);
amdgpu_bo_unreserve(vm->root.base.bo);
}
mutex_unlock(&dev->filelist_mutex);
return r;
}
static const struct drm_info_list amdgpu_debugfs_list[] = {
{"amdgpu_vbios", amdgpu_debugfs_get_vbios_dump},
{"amdgpu_test_ib", &amdgpu_debugfs_test_ib},
{"amdgpu_evict_vram", &amdgpu_debugfs_evict_vram},
{"amdgpu_evict_gtt", &amdgpu_debugfs_evict_gtt},
{"amdgpu_vm_info", &amdgpu_debugfs_vm_info},
};
static void amdgpu_ib_preempt_fences_swap(struct amdgpu_ring *ring,

View File

@ -826,67 +826,6 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv,
}
#if defined(CONFIG_DEBUG_FS)
#define amdgpu_debugfs_gem_bo_print_flag(m, bo, flag) \
if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
seq_printf((m), " " #flag); \
}
static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
{
struct drm_gem_object *gobj = ptr;
struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
struct seq_file *m = data;
struct dma_buf_attachment *attachment;
struct dma_buf *dma_buf;
unsigned domain;
const char *placement;
unsigned pin_count;
domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
switch (domain) {
case AMDGPU_GEM_DOMAIN_VRAM:
placement = "VRAM";
break;
case AMDGPU_GEM_DOMAIN_GTT:
placement = " GTT";
break;
case AMDGPU_GEM_DOMAIN_CPU:
default:
placement = " CPU";
break;
}
seq_printf(m, "\t0x%08x: %12ld byte %s",
id, amdgpu_bo_size(bo), placement);
pin_count = READ_ONCE(bo->pin_count);
if (pin_count)
seq_printf(m, " pin count %d", pin_count);
dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
attachment = READ_ONCE(bo->tbo.base.import_attach);
if (attachment)
seq_printf(m, " imported from %p%s", dma_buf,
attachment->peer2peer ? " P2P" : "");
else if (dma_buf)
seq_printf(m, " exported as %p", dma_buf);
amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
amdgpu_debugfs_gem_bo_print_flag(m, bo, NO_CPU_ACCESS);
amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_GTT_USWC);
amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CLEARED);
amdgpu_debugfs_gem_bo_print_flag(m, bo, SHADOW);
amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
amdgpu_debugfs_gem_bo_print_flag(m, bo, VM_ALWAYS_VALID);
amdgpu_debugfs_gem_bo_print_flag(m, bo, EXPLICIT_SYNC);
seq_printf(m, "\n");
return 0;
}
static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
@ -900,6 +839,8 @@ static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
list_for_each_entry(file, &dev->filelist, lhead) {
struct task_struct *task;
struct drm_gem_object *gobj;
int id;
/*
* Although we have a valid reference on file->pid, that does
@ -914,7 +855,11 @@ static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
rcu_read_unlock();
spin_lock(&file->table_lock);
idr_for_each(&file->object_idr, amdgpu_debugfs_gem_bo_info, m);
idr_for_each_entry(&file->object_idr, gobj, id) {
struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
amdgpu_bo_print_info(id, bo, m);
}
spin_unlock(&file->table_lock);
}

View File

@ -1528,3 +1528,77 @@ uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device *adev,
}
return domain;
}
#if defined(CONFIG_DEBUG_FS)
#define amdgpu_bo_print_flag(m, bo, flag) \
do { \
if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
seq_printf((m), " " #flag); \
} \
} while (0)
/**
* amdgpu_debugfs_print_bo_info - print BO info in debugfs file
*
* @id: Index or Id of the BO
* @bo: Requested BO for printing info
* @m: debugfs file
*
* Print BO information in debugfs file
*
* Returns:
* Size of the BO in bytes.
*/
u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m)
{
struct dma_buf_attachment *attachment;
struct dma_buf *dma_buf;
unsigned int domain;
const char *placement;
unsigned int pin_count;
u64 size;
domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
switch (domain) {
case AMDGPU_GEM_DOMAIN_VRAM:
placement = "VRAM";
break;
case AMDGPU_GEM_DOMAIN_GTT:
placement = " GTT";
break;
case AMDGPU_GEM_DOMAIN_CPU:
default:
placement = " CPU";
break;
}
size = amdgpu_bo_size(bo);
seq_printf(m, "\t\t0x%08x: %12lld byte %s",
id, size, placement);
pin_count = READ_ONCE(bo->pin_count);
if (pin_count)
seq_printf(m, " pin count %d", pin_count);
dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
attachment = READ_ONCE(bo->tbo.base.import_attach);
if (attachment)
seq_printf(m, " imported from %p", dma_buf);
else if (dma_buf)
seq_printf(m, " exported as %p", dma_buf);
amdgpu_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
amdgpu_bo_print_flag(m, bo, NO_CPU_ACCESS);
amdgpu_bo_print_flag(m, bo, CPU_GTT_USWC);
amdgpu_bo_print_flag(m, bo, VRAM_CLEARED);
amdgpu_bo_print_flag(m, bo, SHADOW);
amdgpu_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
amdgpu_bo_print_flag(m, bo, VM_ALWAYS_VALID);
amdgpu_bo_print_flag(m, bo, EXPLICIT_SYNC);
seq_puts(m, "\n");
return size;
}
#endif

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@ -330,6 +330,7 @@ void amdgpu_sa_bo_free(struct amdgpu_device *adev,
#if defined(CONFIG_DEBUG_FS)
void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager,
struct seq_file *m);
u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m);
#endif
int amdgpu_debugfs_sa_init(struct amdgpu_device *adev);

View File

@ -3392,3 +3392,86 @@ error_unref:
return false;
}
#if defined(CONFIG_DEBUG_FS)
/**
* amdgpu_debugfs_vm_bo_info - print BO info for the VM
*
* @vm: Requested VM for printing BO info
* @m: debugfs file
*
* Print BO information in debugfs file for the VM
*/
void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
{
struct amdgpu_bo_va *bo_va, *tmp;
u64 total_idle = 0;
u64 total_evicted = 0;
u64 total_relocated = 0;
u64 total_moved = 0;
u64 total_invalidated = 0;
unsigned int total_idle_objs = 0;
unsigned int total_evicted_objs = 0;
unsigned int total_relocated_objs = 0;
unsigned int total_moved_objs = 0;
unsigned int total_invalidated_objs = 0;
unsigned int id = 0;
seq_puts(m, "\tIdle BOs:\n");
list_for_each_entry_safe(bo_va, tmp, &vm->idle, base.vm_status) {
if (!bo_va->base.bo)
continue;
total_idle += amdgpu_bo_print_info(id++, bo_va->base.bo, m);
}
total_idle_objs = id;
id = 0;
seq_puts(m, "\tEvicted BOs:\n");
list_for_each_entry_safe(bo_va, tmp, &vm->evicted, base.vm_status) {
if (!bo_va->base.bo)
continue;
total_evicted += amdgpu_bo_print_info(id++, bo_va->base.bo, m);
}
total_evicted_objs = id;
id = 0;
seq_puts(m, "\tRelocated BOs:\n");
list_for_each_entry_safe(bo_va, tmp, &vm->relocated, base.vm_status) {
if (!bo_va->base.bo)
continue;
total_relocated += amdgpu_bo_print_info(id++, bo_va->base.bo, m);
}
total_relocated_objs = id;
id = 0;
seq_puts(m, "\tMoved BOs:\n");
list_for_each_entry_safe(bo_va, tmp, &vm->moved, base.vm_status) {
if (!bo_va->base.bo)
continue;
total_moved += amdgpu_bo_print_info(id++, bo_va->base.bo, m);
}
total_moved_objs = id;
id = 0;
seq_puts(m, "\tInvalidated BOs:\n");
spin_lock(&vm->invalidated_lock);
list_for_each_entry_safe(bo_va, tmp, &vm->invalidated, base.vm_status) {
if (!bo_va->base.bo)
continue;
total_invalidated += amdgpu_bo_print_info(id++, bo_va->base.bo, m);
}
spin_unlock(&vm->invalidated_lock);
total_invalidated_objs = id;
seq_printf(m, "\tTotal idle size: %12lld\tobjs:\t%d\n", total_idle,
total_idle_objs);
seq_printf(m, "\tTotal evicted size: %12lld\tobjs:\t%d\n", total_evicted,
total_evicted_objs);
seq_printf(m, "\tTotal relocated size: %12lld\tobjs:\t%d\n", total_relocated,
total_relocated_objs);
seq_printf(m, "\tTotal moved size: %12lld\tobjs:\t%d\n", total_moved,
total_moved_objs);
seq_printf(m, "\tTotal invalidated size: %12lld\tobjs:\t%d\n", total_invalidated,
total_invalidated_objs);
}
#endif

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@ -441,4 +441,8 @@ void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
struct amdgpu_vm *vm);
void amdgpu_vm_del_from_lru_notify(struct ttm_buffer_object *bo);
#if defined(CONFIG_DEBUG_FS)
void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m);
#endif
#endif