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authorJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2021-01-15 08:49:57 +0200
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2021-01-15 08:49:57 +0200
commitd263dfa7d2697a43f3299b9731cd568ee49cdd2c (patch)
treef5d993c7000ac41ee926acf0b357ec572ef7908f /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
parentdrm/i915/gt: Prune inlines (diff)
parentMerge tag 'drm-intel-gt-next-2021-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next (diff)
downloadwireguard-linux-d263dfa7d2697a43f3299b9731cd568ee49cdd2c.tar.xz
wireguard-linux-d263dfa7d2697a43f3299b9731cd568ee49cdd2c.zip
Merge drm/drm-next into drm-intel-gt-next
Backmerging to get a common base for merging topic branches between drm-intel-next and drm-intel-gt-next. Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c142
1 files changed, 62 insertions, 80 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 676fb520e044..9fd2157b133a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -46,7 +46,6 @@
#include <drm/ttm/ttm_bo_api.h>
#include <drm/ttm/ttm_bo_driver.h>
#include <drm/ttm/ttm_placement.h>
-#include <drm/ttm/ttm_module.h>
#include <drm/drm_debugfs.h>
#include <drm/amdgpu_drm.h>
@@ -451,7 +450,7 @@ error:
return r;
}
-/**
+/*
* amdgpu_move_blit - Copy an entire buffer to another buffer
*
* This is a helper called by amdgpu_bo_move() and amdgpu_move_vram_ram() to
@@ -512,7 +511,7 @@ error:
return r;
}
-/**
+/*
* amdgpu_mem_visible - Check that memory can be accessed by ttm_bo_move_memcpy
*
* Called by amdgpu_bo_move()
@@ -536,7 +535,7 @@ static bool amdgpu_mem_visible(struct amdgpu_device *adev,
<= adev->gmc.visible_vram_size;
}
-/**
+/*
* amdgpu_bo_move - Move a buffer object to a new memory location
*
* Called by ttm_bo_handle_move_mem()
@@ -551,25 +550,12 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
struct ttm_resource *old_mem = &bo->mem;
int r;
- if ((old_mem->mem_type == TTM_PL_SYSTEM &&
- new_mem->mem_type == TTM_PL_VRAM) ||
- (old_mem->mem_type == TTM_PL_VRAM &&
- new_mem->mem_type == TTM_PL_SYSTEM)) {
- hop->fpfn = 0;
- hop->lpfn = 0;
- hop->mem_type = TTM_PL_TT;
- hop->flags = 0;
- return -EMULTIHOP;
- }
-
if (new_mem->mem_type == TTM_PL_TT) {
r = amdgpu_ttm_backend_bind(bo->bdev, bo->ttm, new_mem);
if (r)
return r;
}
- amdgpu_bo_move_notify(bo, evict, new_mem);
-
/* Can't move a pinned BO */
abo = ttm_to_amdgpu_bo(bo);
if (WARN_ON_ONCE(abo->tbo.pin_count > 0))
@@ -579,24 +565,23 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
ttm_bo_move_null(bo, new_mem);
- return 0;
+ goto out;
}
if (old_mem->mem_type == TTM_PL_SYSTEM &&
new_mem->mem_type == TTM_PL_TT) {
ttm_bo_move_null(bo, new_mem);
- return 0;
+ goto out;
}
-
if (old_mem->mem_type == TTM_PL_TT &&
new_mem->mem_type == TTM_PL_SYSTEM) {
r = ttm_bo_wait_ctx(bo, ctx);
if (r)
- goto fail;
+ return r;
amdgpu_ttm_backend_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_mem);
- return 0;
+ goto out;
}
if (old_mem->mem_type == AMDGPU_PL_GDS ||
@@ -607,27 +592,37 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
new_mem->mem_type == AMDGPU_PL_OA) {
/* Nothing to save here */
ttm_bo_move_null(bo, new_mem);
- return 0;
+ goto out;
}
- if (!adev->mman.buffer_funcs_enabled) {
+ if (adev->mman.buffer_funcs_enabled) {
+ if (((old_mem->mem_type == TTM_PL_SYSTEM &&
+ new_mem->mem_type == TTM_PL_VRAM) ||
+ (old_mem->mem_type == TTM_PL_VRAM &&
+ new_mem->mem_type == TTM_PL_SYSTEM))) {
+ hop->fpfn = 0;
+ hop->lpfn = 0;
+ hop->mem_type = TTM_PL_TT;
+ hop->flags = 0;
+ return -EMULTIHOP;
+ }
+
+ r = amdgpu_move_blit(bo, evict, new_mem, old_mem);
+ } else {
r = -ENODEV;
- goto memcpy;
}
- r = amdgpu_move_blit(bo, evict, new_mem, old_mem);
if (r) {
-memcpy:
/* Check that all memory is CPU accessible */
if (!amdgpu_mem_visible(adev, old_mem) ||
!amdgpu_mem_visible(adev, new_mem)) {
pr_err("Move buffer fallback to memcpy unavailable\n");
- goto fail;
+ return r;
}
r = ttm_bo_move_memcpy(bo, ctx, new_mem);
if (r)
- goto fail;
+ return r;
}
if (bo->type == ttm_bo_type_device &&
@@ -639,17 +634,14 @@ memcpy:
abo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
}
+out:
/* update statistics */
- atomic64_add((u64)bo->num_pages << PAGE_SHIFT, &adev->num_bytes_moved);
+ atomic64_add(bo->base.size, &adev->num_bytes_moved);
+ amdgpu_bo_move_notify(bo, evict, new_mem);
return 0;
-fail:
- swap(*new_mem, bo->mem);
- amdgpu_bo_move_notify(bo, false, new_mem);
- swap(*new_mem, bo->mem);
- return r;
}
-/**
+/*
* amdgpu_ttm_io_mem_reserve - Reserve a block of memory during a fault
*
* Called by ttm_mem_io_reserve() ultimately via ttm_bo_vm_fault()
@@ -740,7 +732,7 @@ struct amdgpu_ttm_tt {
};
#ifdef CONFIG_DRM_AMDGPU_USERPTR
-/**
+/*
* amdgpu_ttm_tt_get_user_pages - get device accessible pages that back user
* memory and start HMM tracking CPU page table update
*
@@ -845,7 +837,7 @@ out:
return r;
}
-/**
+/*
* amdgpu_ttm_tt_userptr_range_done - stop HMM track the CPU page table change
* Check if the pages backing this ttm range have been invalidated
*
@@ -881,7 +873,7 @@ bool amdgpu_ttm_tt_get_user_pages_done(struct ttm_tt *ttm)
}
#endif
-/**
+/*
* amdgpu_ttm_tt_set_user_pages - Copy pages in, putting old pages as necessary.
*
* Called by amdgpu_cs_list_validate(). This creates the page list
@@ -896,7 +888,7 @@ void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages)
ttm->pages[i] = pages ? pages[i] : NULL;
}
-/**
+/*
* amdgpu_ttm_tt_pin_userptr - prepare the sg table with the user pages
*
* Called by amdgpu_ttm_backend_bind()
@@ -925,8 +917,8 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_bo_device *bdev,
goto release_sg;
/* convert SG to linear array of pages and dma addresses */
- drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
- gtt->ttm.dma_address, ttm->num_pages);
+ drm_prime_sg_to_dma_addr_array(ttm->sg, gtt->ttm.dma_address,
+ ttm->num_pages);
return 0;
@@ -936,7 +928,7 @@ release_sg:
return r;
}
-/**
+/*
* amdgpu_ttm_tt_unpin_userptr - Unpin and unmap userptr pages
*/
static void amdgpu_ttm_tt_unpin_userptr(struct ttm_bo_device *bdev,
@@ -1017,7 +1009,7 @@ gart_bind_fail:
return r;
}
-/**
+/*
* amdgpu_ttm_backend_bind - Bind GTT memory
*
* Called by ttm_tt_bind() on behalf of ttm_bo_handle_move_mem().
@@ -1075,7 +1067,7 @@ static int amdgpu_ttm_backend_bind(struct ttm_bo_device *bdev,
return r;
}
-/**
+/*
* amdgpu_ttm_alloc_gart - Make sure buffer object is accessible either
* through AGP or GART aperture.
*
@@ -1136,7 +1128,7 @@ int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo)
return 0;
}
-/**
+/*
* amdgpu_ttm_recover_gart - Rebind GTT pages
*
* Called by amdgpu_gtt_mgr_recover() from amdgpu_device_reset() to
@@ -1157,7 +1149,7 @@ int amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo)
return r;
}
-/**
+/*
* amdgpu_ttm_backend_unbind - Unbind GTT mapped pages
*
* Called by ttm_tt_unbind() on behalf of ttm_bo_move_ttm() and
@@ -1206,6 +1198,7 @@ static void amdgpu_ttm_backend_destroy(struct ttm_bo_device *bdev,
* amdgpu_ttm_tt_create - Create a ttm_tt object for a given BO
*
* @bo: The buffer object to create a GTT ttm_tt object around
+ * @page_flags: Page flags to be added to the ttm_tt object
*
* Called by ttm_tt_create().
*/
@@ -1235,7 +1228,7 @@ static struct ttm_tt *amdgpu_ttm_tt_create(struct ttm_buffer_object *bo,
return &gtt->ttm;
}
-/**
+/*
* amdgpu_ttm_tt_populate - Map GTT pages visible to the device
*
* Map the pages of a ttm_tt object to an address space visible
@@ -1271,16 +1264,15 @@ static int amdgpu_ttm_tt_populate(struct ttm_bo_device *bdev,
ttm->sg = sgt;
}
- drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
- gtt->ttm.dma_address,
- ttm->num_pages);
+ drm_prime_sg_to_dma_addr_array(ttm->sg, gtt->ttm.dma_address,
+ ttm->num_pages);
return 0;
}
return ttm_pool_alloc(&adev->mman.bdev.pool, ttm, ctx);
}
-/**
+/*
* amdgpu_ttm_tt_unpopulate - unmap GTT pages and unpopulate page arrays
*
* Unmaps pages of a ttm_tt object from the device address space and
@@ -1350,7 +1342,7 @@ int amdgpu_ttm_tt_set_userptr(struct ttm_buffer_object *bo,
return 0;
}
-/**
+/*
* amdgpu_ttm_tt_get_usermm - Return memory manager for ttm_tt object
*/
struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm)
@@ -1366,7 +1358,7 @@ struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm)
return gtt->usertask->mm;
}
-/**
+/*
* amdgpu_ttm_tt_affect_userptr - Determine if a ttm_tt object lays inside an
* address range for the current task.
*
@@ -1390,7 +1382,7 @@ bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
return true;
}
-/**
+/*
* amdgpu_ttm_tt_is_userptr - Have the pages backing by userptr?
*/
bool amdgpu_ttm_tt_is_userptr(struct ttm_tt *ttm)
@@ -1403,7 +1395,7 @@ bool amdgpu_ttm_tt_is_userptr(struct ttm_tt *ttm)
return true;
}
-/**
+/*
* amdgpu_ttm_tt_is_readonly - Is the ttm_tt object read only?
*/
bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm)
@@ -1444,9 +1436,10 @@ uint64_t amdgpu_ttm_tt_pde_flags(struct ttm_tt *ttm, struct ttm_resource *mem)
/**
* amdgpu_ttm_tt_pte_flags - Compute PTE flags for ttm_tt object
*
+ * @adev: amdgpu_device pointer
* @ttm: The ttm_tt object to compute the flags for
* @mem: The memory registry backing this ttm_tt object
-
+ *
* Figure out the flags to use for a VM PTE (Page Table Entry).
*/
uint64_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
@@ -1463,7 +1456,7 @@ uint64_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
return flags;
}
-/**
+/*
* amdgpu_ttm_bo_eviction_valuable - Check to see if we can evict a buffer
* object.
*
@@ -1774,7 +1767,7 @@ static int amdgpu_ttm_reserve_tmr(struct amdgpu_device *adev)
return 0;
}
-/**
+/*
* amdgpu_ttm_init - Init the memory management (ttm) as well as various
* gtt/vram related fields.
*
@@ -1908,18 +1901,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
return 0;
}
-/**
- * amdgpu_ttm_late_init - Handle any late initialization for amdgpu_ttm
- */
-void amdgpu_ttm_late_init(struct amdgpu_device *adev)
-{
- /* return the VGA stolen memory (if any) back to VRAM */
- if (!adev->mman.keep_stolen_vga_memory)
- amdgpu_bo_free_kernel(&adev->mman.stolen_vga_memory, NULL, NULL);
- amdgpu_bo_free_kernel(&adev->mman.stolen_extended_memory, NULL, NULL);
-}
-
-/**
+/*
* amdgpu_ttm_fini - De-initialize the TTM memory pools
*/
void amdgpu_ttm_fini(struct amdgpu_device *adev)
@@ -1929,8 +1911,8 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
amdgpu_ttm_training_reserve_vram_fini(adev);
/* return the stolen vga memory back to VRAM */
- if (adev->mman.keep_stolen_vga_memory)
- amdgpu_bo_free_kernel(&adev->mman.stolen_vga_memory, NULL, NULL);
+ amdgpu_bo_free_kernel(&adev->mman.stolen_vga_memory, NULL, NULL);
+ amdgpu_bo_free_kernel(&adev->mman.stolen_extended_memory, NULL, NULL);
/* return the IP Discovery TMR memory back to VRAM */
amdgpu_bo_free_kernel(&adev->mman.discovery_memory, NULL, NULL);
amdgpu_ttm_fw_reserve_vram_fini(adev);
@@ -2140,7 +2122,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
return r;
}
- num_pages = bo->tbo.num_pages;
+ num_pages = bo->tbo.mem.num_pages;
mm_node = bo->tbo.mem.mm_node;
num_loops = 0;
while (num_pages) {
@@ -2170,7 +2152,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
}
}
- num_pages = bo->tbo.num_pages;
+ num_pages = bo->tbo.mem.num_pages;
mm_node = bo->tbo.mem.mm_node;
while (num_pages) {
@@ -2240,7 +2222,7 @@ static const struct drm_info_list amdgpu_ttm_debugfs_list[] = {
{"ttm_page_pool", amdgpu_ttm_pool_debugfs, 0, NULL},
};
-/**
+/*
* amdgpu_ttm_vram_read - Linear read access to VRAM
*
* Accesses VRAM via MMIO for debugging purposes.
@@ -2275,7 +2257,7 @@ static ssize_t amdgpu_ttm_vram_read(struct file *f, char __user *buf,
return result;
}
-/**
+/*
* amdgpu_ttm_vram_write - Linear write access to VRAM
*
* Accesses VRAM via MMIO for debugging purposes.
@@ -2328,7 +2310,7 @@ static const struct file_operations amdgpu_ttm_vram_fops = {
#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS
-/**
+/*
* amdgpu_ttm_gtt_read - Linear read access to GTT memory
*/
static ssize_t amdgpu_ttm_gtt_read(struct file *f, char __user *buf,
@@ -2378,7 +2360,7 @@ static const struct file_operations amdgpu_ttm_gtt_fops = {
#endif
-/**
+/*
* amdgpu_iomem_read - Virtual read access to GPU mapped memory
*
* This function is used to read memory that has been mapped to the
@@ -2434,7 +2416,7 @@ static ssize_t amdgpu_iomem_read(struct file *f, char __user *buf,
return result;
}
-/**
+/*
* amdgpu_iomem_write - Virtual write access to GPU mapped memory
*
* This function is used to write memory that has been mapped to the