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drm/amdgpu: Add debugfs entry for printing VM info

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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
Download Patch File Download Diff File Expand all files Collapse all files

74
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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