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drm/amdgpu: cleanup creating BOs at fixed location (v2) 

The placement is something TTM/BO internal and the RAS code should
avoid touching that directly.

Add a helper to create a BO at a fixed location and use that instead.

v2: squash in fixes (Alex)

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2019-09-13 13:43:15 +02:00 committed by Alex Deucher
parent db338e1663
commit de7b45babd
4 changed files with 82 additions and 147 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@ -342,6 +342,67 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
return 0;
}
/**
* amdgpu_bo_create_kernel_at - create BO for kernel use at specific location
*
* @adev: amdgpu device object
* @offset: offset of the BO
* @size: size of the BO
* @domain: where to place it
* @bo_ptr: used to initialize BOs in structures
* @cpu_addr: optional CPU address mapping
*
* Creates a kernel BO at a specific offset in the address space of the domain.
*
* Returns:
* 0 on success, negative error code otherwise.
*/
int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
uint64_t offset, uint64_t size, uint32_t domain,
struct amdgpu_bo **bo_ptr, void **cpu_addr)
{
struct ttm_operation_ctx ctx = { false, false };
unsigned int i;
int r;
offset &= PAGE_MASK;
size = ALIGN(size, PAGE_SIZE);
r = amdgpu_bo_create_reserved(adev, size, PAGE_SIZE, domain, bo_ptr,
NULL, NULL);
if (r)
return r;
/*
* Remove the original mem node and create a new one at the request
* position.
*/
for (i = 0; i < (*bo_ptr)->placement.num_placement; ++i) {
(*bo_ptr)->placements[i].fpfn = offset >> PAGE_SHIFT;
(*bo_ptr)->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
}
ttm_bo_mem_put(&(*bo_ptr)->tbo, &(*bo_ptr)->tbo.mem);
r = ttm_bo_mem_space(&(*bo_ptr)->tbo, &(*bo_ptr)->placement,
&(*bo_ptr)->tbo.mem, &ctx);
if (r)
goto error;
if (cpu_addr) {
r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
if (r)
goto error;
}
amdgpu_bo_unreserve(*bo_ptr);
return 0;
error:
amdgpu_bo_unreserve(*bo_ptr);
amdgpu_bo_unref(bo_ptr);
return r;
}
/**
* amdgpu_bo_free_kernel - free BO for kernel use
*

3
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
View File

@ -238,6 +238,9 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
unsigned long size, int align,
u32 domain, struct amdgpu_bo **bo_ptr,
u64 *gpu_addr, void **cpu_addr);
int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
uint64_t offset, uint64_t size, uint32_t domain,
struct amdgpu_bo **bo_ptr, void **cpu_addr);
void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
void **cpu_addr);
int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr);

85
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
View File

@ -71,12 +71,6 @@ const char *ras_block_string[] = {
atomic_t amdgpu_ras_in_intr = ATOMIC_INIT(0);
static int amdgpu_ras_reserve_vram(struct amdgpu_device *adev,
uint64_t offset, uint64_t size,
struct amdgpu_bo **bo_ptr);
static int amdgpu_ras_release_vram(struct amdgpu_device *adev,
struct amdgpu_bo **bo_ptr);
static ssize_t amdgpu_ras_debugfs_read(struct file *f, char __user *buf,
size_t size, loff_t *pos)
{
@ -1260,75 +1254,6 @@ static void amdgpu_ras_do_recovery(struct work_struct *work)
atomic_set(&ras->in_recovery, 0);
}
static int amdgpu_ras_release_vram(struct amdgpu_device *adev,
struct amdgpu_bo **bo_ptr)
{
/* no need to free it actually. */
amdgpu_bo_free_kernel(bo_ptr, NULL, NULL);
return 0;
}
/* reserve vram with size@offset */
static int amdgpu_ras_reserve_vram(struct amdgpu_device *adev,
uint64_t offset, uint64_t size,
struct amdgpu_bo **bo_ptr)
{
struct ttm_operation_ctx ctx = { false, false };
struct amdgpu_bo_param bp;
int r = 0;
int i;
struct amdgpu_bo *bo;
if (bo_ptr)
*bo_ptr = NULL;
memset(&bp, 0, sizeof(bp));
bp.size = size;
bp.byte_align = PAGE_SIZE;
bp.domain = AMDGPU_GEM_DOMAIN_VRAM;
bp.flags = AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS |
AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
bp.type = ttm_bo_type_kernel;
bp.resv = NULL;
r = amdgpu_bo_create(adev, &bp, &bo);
if (r)
return -EINVAL;
r = amdgpu_bo_reserve(bo, false);
if (r)
goto error_reserve;
offset = ALIGN(offset, PAGE_SIZE);
for (i = 0; i < bo->placement.num_placement; ++i) {
bo->placements[i].fpfn = offset >> PAGE_SHIFT;
bo->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
}
ttm_bo_mem_put(&bo->tbo, &bo->tbo.mem);
r = ttm_bo_mem_space(&bo->tbo, &bo->placement, &bo->tbo.mem, &ctx);
if (r)
goto error_pin;
r = amdgpu_bo_pin_restricted(bo,
AMDGPU_GEM_DOMAIN_VRAM,
offset,
offset + size);
if (r)
goto error_pin;
if (bo_ptr)
*bo_ptr = bo;
amdgpu_bo_unreserve(bo);
return r;
error_pin:
amdgpu_bo_unreserve(bo);
error_reserve:
amdgpu_bo_unref(&bo);
return r;
}
/* alloc/realloc bps array */
static int amdgpu_ras_realloc_eh_data_space(struct amdgpu_device *adev,
struct ras_err_handler_data *data, int pages)
@ -1464,7 +1389,7 @@ int amdgpu_ras_reserve_bad_pages(struct amdgpu_device *adev)
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
struct ras_err_handler_data *data;
uint64_t bp;
struct amdgpu_bo *bo;
struct amdgpu_bo *bo = NULL;
int i, ret = 0;
if (!con || !con->eh_data)
@ -1478,12 +1403,14 @@ int amdgpu_ras_reserve_bad_pages(struct amdgpu_device *adev)
for (i = data->last_reserved; i < data->count; i++) {
bp = data->bps[i].retired_page;
if (amdgpu_ras_reserve_vram(adev, bp << PAGE_SHIFT,
PAGE_SIZE, &bo))
if (amdgpu_bo_create_kernel_at(adev, bp << PAGE_SHIFT, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
&bo, NULL))
DRM_ERROR("RAS ERROR: reserve vram %llx fail\n", bp);
data->bps_bo[i] = bo;
data->last_reserved = i + 1;
bo = NULL;
}
/* continue to save bad pages to eeprom even reesrve_vram fails */
@ -1512,7 +1439,7 @@ static int amdgpu_ras_release_bad_pages(struct amdgpu_device *adev)
for (i = data->last_reserved - 1; i >= 0; i--) {
bo = data->bps_bo[i];
amdgpu_ras_release_vram(adev, &bo);
amdgpu_bo_free_kernel(&bo, NULL, NULL);
data->bps_bo[i] = bo;
data->last_reserved = i;

80
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -1650,81 +1650,25 @@ static void amdgpu_ttm_fw_reserve_vram_fini(struct amdgpu_device *adev)
*/
static int amdgpu_ttm_fw_reserve_vram_init(struct amdgpu_device *adev)
{
struct ttm_operation_ctx ctx = { false, false };
struct amdgpu_bo_param bp;
int r = 0;
int i;
u64 vram_size = adev->gmc.visible_vram_size;
u64 offset = adev->fw_vram_usage.start_offset;
u64 size = adev->fw_vram_usage.size;
struct amdgpu_bo *bo;
uint64_t vram_size = adev->gmc.visible_vram_size;
int r;
memset(&bp, 0, sizeof(bp));
bp.size = adev->fw_vram_usage.size;
bp.byte_align = PAGE_SIZE;
bp.domain = AMDGPU_GEM_DOMAIN_VRAM;
bp.flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
bp.type = ttm_bo_type_kernel;
bp.resv = NULL;
adev->fw_vram_usage.va = NULL;
adev->fw_vram_usage.reserved_bo = NULL;
if (adev->fw_vram_usage.size > 0 &&
adev->fw_vram_usage.size <= vram_size) {
if (adev->fw_vram_usage.size == 0 ||
adev->fw_vram_usage.size > vram_size)
return 0;
r = amdgpu_bo_create(adev, &bp,
&adev->fw_vram_usage.reserved_bo);
if (r)
goto error_create;
r = amdgpu_bo_reserve(adev->fw_vram_usage.reserved_bo, false);
if (r)
goto error_reserve;
/* remove the original mem node and create a new one at the
* request position
*/
bo = adev->fw_vram_usage.reserved_bo;
offset = ALIGN(offset, PAGE_SIZE);
for (i = 0; i < bo->placement.num_placement; ++i) {
bo->placements[i].fpfn = offset >> PAGE_SHIFT;
bo->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
}
ttm_bo_mem_put(&bo->tbo, &bo->tbo.mem);
r = ttm_bo_mem_space(&bo->tbo, &bo->placement,
&bo->tbo.mem, &ctx);
if (r)
goto error_pin;
r = amdgpu_bo_pin_restricted(adev->fw_vram_usage.reserved_bo,
AMDGPU_GEM_DOMAIN_VRAM,
adev->fw_vram_usage.start_offset,
(adev->fw_vram_usage.start_offset +
adev->fw_vram_usage.size));
if (r)
goto error_pin;
r = amdgpu_bo_kmap(adev->fw_vram_usage.reserved_bo,
&adev->fw_vram_usage.va);
if (r)
goto error_kmap;
amdgpu_bo_unreserve(adev->fw_vram_usage.reserved_bo);
}
return r;
error_kmap:
amdgpu_bo_unpin(adev->fw_vram_usage.reserved_bo);
error_pin:
amdgpu_bo_unreserve(adev->fw_vram_usage.reserved_bo);
error_reserve:
amdgpu_bo_unref(&adev->fw_vram_usage.reserved_bo);
error_create:
adev->fw_vram_usage.va = NULL;
adev->fw_vram_usage.reserved_bo = NULL;
return amdgpu_bo_create_kernel_at(adev,
adev->fw_vram_usage.start_offset,
adev->fw_vram_usage.size,
AMDGPU_GEM_DOMAIN_VRAM,
&adev->fw_vram_usage.reserved_bo,
&adev->fw_vram_usage.va);
return r;
}
/**
* amdgpu_ttm_init - Init the memory management (ttm) as well as various
* gtt/vram related fields.