[Intel-gfx] [PATCH v5 2/6] drm/i915: Use the vma resource as argument for gtt binding / unbinding

Thomas Hellström
2022-01-04T12:52:04Z

When introducing asynchronous unbinding, the vma itself may no longer
be alive when the actual binding or unbinding takes place.

Update the gtt i915_vma_ops accordingly to take a struct i915_vma_resource
instead of a struct i915_vma for the bind_vma() and unbind_vma() ops.
Similarly change the insert_entries() op for struct i915_address_space.

Replace a couple of i915_vma_snapshot members with their newly introduced
i915_vma_resource counterparts, since they have the same lifetime.

Also make sure to avoid changing the struct i915_vma_flags (in particular
the bind flags) async. That should now only be done sync under the
vm mutex.

v2:
- Update the vma_res::bound_flags when binding to the aliased ggtt

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_dpt.c | 27 ++---
.../gpu/drm/i915/gem/i915_gem_object_types.h | 27 +----
.../gpu/drm/i915/gem/selftests/huge_pages.c | 37 +++----
drivers/gpu/drm/i915/gt/gen6_ppgtt.c | 19 ++--
drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 37 +++----
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 4 +-
drivers/gpu/drm/i915/gt/intel_ggtt.c | 70 ++++++-------
drivers/gpu/drm/i915/gt/intel_gtt.h | 16 +--
drivers/gpu/drm/i915/gt/intel_ppgtt.c | 22 +++--
drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 13 ++-
drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h | 2 +-
drivers/gpu/drm/i915/i915_debugfs.c | 3 +-
drivers/gpu/drm/i915/i915_gpu_error.c | 6 +-
drivers/gpu/drm/i915/i915_vma.c | 24 ++++-
drivers/gpu/drm/i915/i915_vma.h | 11 +--
drivers/gpu/drm/i915/i915_vma_resource.c | 9 +-
drivers/gpu/drm/i915/i915_vma_resource.h | 99 ++++++++++++++++++-
drivers/gpu/drm/i915/i915_vma_snapshot.c | 4 -
drivers/gpu/drm/i915/i915_vma_snapshot.h | 8 --
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 64 ++++++++----
drivers/gpu/drm/i915/selftests/mock_gtt.c | 12 +--
21 files changed, 308 insertions(+), 206 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dpt.c b/drivers/gpu/drm/i915/display/intel_dpt.c
index 8f674745e7e0..63a83d5f85a1 100644
--- a/drivers/gpu/drm/i915/display/intel_dpt.c
+++ b/drivers/gpu/drm/i915/display/intel_dpt.c
@@ -48,7 +48,7 @@ static void dpt_insert_page(struct i915_address_space *vm,
}

static void dpt_insert_entries(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level level,
u32 flags)
{
@@ -64,8 +64,8 @@ static void dpt_insert_entries(struct i915_address_space *vm,
* not to allow the user to override access to a read only page.
*/

- i = vma->node.start / I915_GTT_PAGE_SIZE;
- for_each_sgt_daddr(addr, sgt_iter, vma->pages)
+ i = vma_res->start / I915_GTT_PAGE_SIZE;
+ for_each_sgt_daddr(addr, sgt_iter, vma_res->bi.pages)
gen8_set_pte(&base[i++], pte_encode | addr);
}

@@ -76,35 +76,38 @@ static void dpt_clear_range(struct i915_address_space *vm,

static void dpt_bind_vma(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
- struct drm_i915_gem_object *obj = vma->obj;
u32 pte_flags;

+ if (vma_res->bound_flags)
+ return;
+
/* Applicable to VLV (gen8+ do not support RO in the GGTT) */
pte_flags = 0;
- if (vma->vm->has_read_only && i915_gem_object_is_readonly(obj))
+ if (vm->has_read_only && vma_res->bi.readonly)
pte_flags |= PTE_READ_ONLY;
- if (i915_gem_object_is_lmem(obj))
+ if (vma_res->bi.lmem)
pte_flags |= PTE_LM;

- vma->vm->insert_entries(vma->vm, vma, cache_level, pte_flags);
+ vm->insert_entries(vm, vma_res, cache_level, pte_flags);

- vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
+ vma_res->page_sizes_gtt = I915_GTT_PAGE_SIZE;

/*
* Without aliasing PPGTT there's no difference between
* GLOBAL/LOCAL_BIND, it's all the same ptes. Hence unconditionally
* upgrade to both bound if we bind either to avoid double-binding.
*/
- atomic_or(I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND, &vma->flags);
+ vma_res->bound_flags = I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND;
}

-static void dpt_unbind_vma(struct i915_address_space *vm, struct i915_vma *vma)
+static void dpt_unbind_vma(struct i915_address_space *vm,
+ struct i915_vma_resource *vma_res)
{
- vm->clear_range(vm, vma->node.start, vma->size);
+ vm->clear_range(vm, vma_res->start, vma_res->vma_size);
}

static void dpt_cleanup(struct i915_address_space *vm)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
index f9f7e44099fe..f99d260e0684 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
@@ -15,6 +15,7 @@

#include "i915_active.h"
#include "i915_selftest.h"
+#include "i915_vma_resource.h"

struct drm_i915_gem_object;
struct intel_fronbuffer;
@@ -549,31 +550,7 @@ struct drm_i915_gem_object {
struct sg_table *pages;
void *mapping;

- struct i915_page_sizes {
- /**
- * The sg mask of the pages sg_table. i.e the mask of
- * of the lengths for each sg entry.
- */
- unsigned int phys;
-
- /**
- * The gtt page sizes we are allowed to use given the
- * sg mask and the supported page sizes. This will
- * express the smallest unit we can use for the whole
- * object, as well as the larger sizes we may be able
- * to use opportunistically.
- */
- unsigned int sg;
-
- /**
- * The actual gtt page size usage. Since we can have
- * multiple vma associated with this object we need to
- * prevent any trampling of state, hence a copy of this
- * struct also lives in each vma, therefore the gtt
- * value here should only be read/write through the vma.
- */
- unsigned int gtt;
- } page_sizes;
+ struct i915_page_sizes page_sizes;

I915_SELFTEST_DECLARE(unsigned int page_mask);

diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index 11f0aa65f8a3..26f997c376a2 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -370,9 +370,9 @@ static int igt_check_page_sizes(struct i915_vma *vma)
err = -EINVAL;
}

- if (!HAS_PAGE_SIZES(i915, vma->page_sizes.gtt)) {
+ if (!HAS_PAGE_SIZES(i915, vma->resource->page_sizes_gtt)) {
pr_err("unsupported page_sizes.gtt=%u, supported=%u\n",
- vma->page_sizes.gtt & ~supported, supported);
+ vma->resource->page_sizes_gtt & ~supported, supported);
err = -EINVAL;
}

@@ -403,15 +403,9 @@ static int igt_check_page_sizes(struct i915_vma *vma)
if (i915_gem_object_is_lmem(obj) &&
IS_ALIGNED(vma->node.start, SZ_2M) &&
vma->page_sizes.sg & SZ_2M &&
- vma->page_sizes.gtt < SZ_2M) {
+ vma->resource->page_sizes_gtt < SZ_2M) {
pr_err("gtt pages mismatch for LMEM, expected 2M GTT pages, sg(%u), gtt(%u)\n",
- vma->page_sizes.sg, vma->page_sizes.gtt);
- err = -EINVAL;
- }
-
- if (obj->mm.page_sizes.gtt) {
- pr_err("obj->page_sizes.gtt(%u) should never be set\n",
- obj->mm.page_sizes.gtt);
+ vma->page_sizes.sg, vma->resource->page_sizes_gtt);
err = -EINVAL;
}

@@ -547,9 +541,9 @@ static int igt_mock_memory_region_huge_pages(void *arg)
goto out_unpin;
}

- if (vma->page_sizes.gtt != page_size) {
+ if (vma->resource->page_sizes_gtt != page_size) {
pr_err("%s page_sizes.gtt=%u, expected=%u\n",
- __func__, vma->page_sizes.gtt,
+ __func__, vma->resource->page_sizes_gtt,
page_size);
err = -EINVAL;
goto out_unpin;
@@ -630,9 +624,9 @@ static int igt_mock_ppgtt_misaligned_dma(void *arg)

err = igt_check_page_sizes(vma);

- if (vma->page_sizes.gtt != page_size) {
+ if (vma->resource->page_sizes_gtt != page_size) {
pr_err("page_sizes.gtt=%u, expected %u\n",
- vma->page_sizes.gtt, page_size);
+ vma->resource->page_sizes_gtt, page_size);
err = -EINVAL;
}

@@ -657,9 +651,10 @@ static int igt_mock_ppgtt_misaligned_dma(void *arg)

err = igt_check_page_sizes(vma);

- if (vma->page_sizes.gtt != I915_GTT_PAGE_SIZE_4K) {
+ if (vma->resource->page_sizes_gtt != I915_GTT_PAGE_SIZE_4K) {
pr_err("page_sizes.gtt=%u, expected %llu\n",
- vma->page_sizes.gtt, I915_GTT_PAGE_SIZE_4K);
+ vma->resource->page_sizes_gtt,
+ I915_GTT_PAGE_SIZE_4K);
err = -EINVAL;
}

@@ -805,9 +800,9 @@ static int igt_mock_ppgtt_huge_fill(void *arg)
}
}

- if (vma->page_sizes.gtt != expected_gtt) {
+ if (vma->resource->page_sizes_gtt != expected_gtt) {
pr_err("gtt=%u, expected=%u, size=%zd, single=%s\n",
- vma->page_sizes.gtt, expected_gtt,
+ vma->resource->page_sizes_gtt, expected_gtt,
obj->base.size, yesno(!!single));
err = -EINVAL;
break;
@@ -961,10 +956,10 @@ static int igt_mock_ppgtt_64K(void *arg)
}
}

- if (vma->page_sizes.gtt != expected_gtt) {
+ if (vma->resource->page_sizes_gtt != expected_gtt) {
pr_err("gtt=%u, expected=%u, i=%d, single=%s\n",
- vma->page_sizes.gtt, expected_gtt, i,
- yesno(!!single));
+ vma->resource->page_sizes_gtt,
+ expected_gtt, i, yesno(!!single));
err = -EINVAL;
goto out_vma_unpin;
}
diff --git a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
index 6e9292918bfc..d657ffd6c86a 100644
--- a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
@@ -104,17 +104,17 @@ static void gen6_ppgtt_clear_range(struct i915_address_space *vm,
}

static void gen6_ppgtt_insert_entries(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
struct i915_ppgtt *ppgtt = i915_vm_to_ppgtt(vm);
struct i915_page_directory * const pd = ppgtt->pd;
- unsigned int first_entry = vma->node.start / I915_GTT_PAGE_SIZE;
+ unsigned int first_entry = vma_res->start / I915_GTT_PAGE_SIZE;
unsigned int act_pt = first_entry / GEN6_PTES;
unsigned int act_pte = first_entry % GEN6_PTES;
const u32 pte_encode = vm->pte_encode(0, cache_level, flags);
- struct sgt_dma iter = sgt_dma(vma);
+ struct sgt_dma iter = sgt_dma(vma_res);
gen6_pte_t *vaddr;

GEM_BUG_ON(!pd->entry[act_pt]);
@@ -140,7 +140,7 @@ static void gen6_ppgtt_insert_entries(struct i915_address_space *vm,
}
} while (1);

- vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
+ vma_res->page_sizes_gtt = I915_GTT_PAGE_SIZE;
}

static void gen6_flush_pd(struct gen6_ppgtt *ppgtt, u64 start, u64 end)
@@ -271,13 +271,13 @@ static void gen6_ppgtt_cleanup(struct i915_address_space *vm)

static void pd_vma_bind(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 unused)
{
struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm);
- struct gen6_ppgtt *ppgtt = vma->private;
- u32 ggtt_offset = i915_ggtt_offset(vma) / I915_GTT_PAGE_SIZE;
+ struct gen6_ppgtt *ppgtt = vma_res->private;
+ u32 ggtt_offset = vma_res->start / I915_GTT_PAGE_SIZE;

ppgtt->pp_dir = ggtt_offset * sizeof(gen6_pte_t) << 10;
ppgtt->pd_addr = (gen6_pte_t __iomem *)ggtt->gsm + ggtt_offset;
@@ -285,9 +285,10 @@ static void pd_vma_bind(struct i915_address_space *vm,
gen6_flush_pd(ppgtt, 0, ppgtt->base.vm.total);
}

-static void pd_vma_unbind(struct i915_address_space *vm, struct i915_vma *vma)
+static void pd_vma_unbind(struct i915_address_space *vm,
+ struct i915_vma_resource *vma_res)
{
- struct gen6_ppgtt *ppgtt = vma->private;
+ struct gen6_ppgtt *ppgtt = vma_res->private;
struct i915_page_directory * const pd = ppgtt->base.pd;
struct i915_page_table *pt;
unsigned int pde;
diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
index b012c50f7ce7..c43e724afa9f 100644
--- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
@@ -453,20 +453,21 @@ gen8_ppgtt_insert_pte(struct i915_ppgtt *ppgtt,
return idx;
}

-static void gen8_ppgtt_insert_huge(struct i915_vma *vma,
+static void gen8_ppgtt_insert_huge(struct i915_address_space *vm,
+ struct i915_vma_resource *vma_res,
struct sgt_dma *iter,
enum i915_cache_level cache_level,
u32 flags)
{
const gen8_pte_t pte_encode = gen8_pte_encode(0, cache_level, flags);
unsigned int rem = sg_dma_len(iter->sg);
- u64 start = vma->node.start;
+ u64 start = vma_res->start;

- GEM_BUG_ON(!i915_vm_is_4lvl(vma->vm));
+ GEM_BUG_ON(!i915_vm_is_4lvl(vm));

do {
struct i915_page_directory * const pdp =
- gen8_pdp_for_page_address(vma->vm, start);
+ gen8_pdp_for_page_address(vm, start);
struct i915_page_directory * const pd =
i915_pd_entry(pdp, __gen8_pte_index(start, 2));
gen8_pte_t encode = pte_encode;
@@ -475,7 +476,7 @@ static void gen8_ppgtt_insert_huge(struct i915_vma *vma,
gen8_pte_t *vaddr;
u16 index;

- if (vma->page_sizes.sg & I915_GTT_PAGE_SIZE_2M &&
+ if (vma_res->bi.page_sizes.sg & I915_GTT_PAGE_SIZE_2M &&
IS_ALIGNED(iter->dma, I915_GTT_PAGE_SIZE_2M) &&
rem >= I915_GTT_PAGE_SIZE_2M &&
!__gen8_pte_index(start, 0)) {
@@ -492,7 +493,7 @@ static void gen8_ppgtt_insert_huge(struct i915_vma *vma,
page_size = I915_GTT_PAGE_SIZE;

if (!index &&
- vma->page_sizes.sg & I915_GTT_PAGE_SIZE_64K &&
+ vma_res->bi.page_sizes.sg & I915_GTT_PAGE_SIZE_64K &&
IS_ALIGNED(iter->dma, I915_GTT_PAGE_SIZE_64K) &&
(IS_ALIGNED(rem, I915_GTT_PAGE_SIZE_64K) ||
rem >= (I915_PDES - index) * I915_GTT_PAGE_SIZE))
@@ -541,9 +542,9 @@ static void gen8_ppgtt_insert_huge(struct i915_vma *vma,
*/
if (maybe_64K != -1 &&
(index == I915_PDES ||
- (i915_vm_has_scratch_64K(vma->vm) &&
- !iter->sg && IS_ALIGNED(vma->node.start +
- vma->node.size,
+ (i915_vm_has_scratch_64K(vm) &&
+ !iter->sg && IS_ALIGNED(vma_res->start +
+ vma_res->node_size,
I915_GTT_PAGE_SIZE_2M)))) {
vaddr = px_vaddr(pd);
vaddr[maybe_64K] |= GEN8_PDE_IPS_64K;
@@ -559,10 +560,10 @@ static void gen8_ppgtt_insert_huge(struct i915_vma *vma,
* instead - which we detect as missing results during
* selftests.
*/
- if (I915_SELFTEST_ONLY(vma->vm->scrub_64K)) {
+ if (I915_SELFTEST_ONLY(vm->scrub_64K)) {
u16 i;

- encode = vma->vm->scratch[0]->encode;
+ encode = vm->scratch[0]->encode;
vaddr = px_vaddr(i915_pt_entry(pd, maybe_64K));

for (i = 1; i < index; i += 16)
@@ -572,22 +573,22 @@ static void gen8_ppgtt_insert_huge(struct i915_vma *vma,
}
}

- vma->page_sizes.gtt |= page_size;
+ vma_res->page_sizes_gtt |= page_size;
} while (iter->sg && sg_dma_len(iter->sg));
}

static void gen8_ppgtt_insert(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
struct i915_ppgtt * const ppgtt = i915_vm_to_ppgtt(vm);
- struct sgt_dma iter = sgt_dma(vma);
+ struct sgt_dma iter = sgt_dma(vma_res);

- if (vma->page_sizes.sg > I915_GTT_PAGE_SIZE) {
- gen8_ppgtt_insert_huge(vma, &iter, cache_level, flags);
+ if (vma_res->bi.page_sizes.sg > I915_GTT_PAGE_SIZE) {
+ gen8_ppgtt_insert_huge(vm, vma_res, &iter, cache_level, flags);
} else {
- u64 idx = vma->node.start >> GEN8_PTE_SHIFT;
+ u64 idx = vma_res->start >> GEN8_PTE_SHIFT;

do {
struct i915_page_directory * const pdp =
@@ -597,7 +598,7 @@ static void gen8_ppgtt_insert(struct i915_address_space *vm,
cache_level, flags);
} while (idx);

- vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
+ vma_res->page_sizes_gtt = I915_GTT_PAGE_SIZE;
}
}

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 352254e001b4..74aa90587061 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1718,8 +1718,8 @@ static void print_request_ring(struct drm_printer *m, struct i915_request *rq)
drm_printf(m,
"[head %04x, postfix %04x, tail %04x, batch 0x%08x_%08x]:\n",
rq->head, rq->postfix, rq->tail,
- vsnap ? upper_32_bits(vsnap->gtt_offset) : ~0u,
- vsnap ? lower_32_bits(vsnap->gtt_offset) : ~0u);
+ vsnap ? upper_32_bits(vsnap->vma_resource->start) : ~0u,
+ vsnap ? lower_32_bits(vsnap->vma_resource->start) : ~0u);

size = rq->tail - rq->head;
if (rq->tail < rq->head)
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index 5263dda7f8d5..0137b6af0973 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -235,7 +235,7 @@ static void gen8_ggtt_insert_page(struct i915_address_space *vm,
}

static void gen8_ggtt_insert_entries(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level level,
u32 flags)
{
@@ -252,10 +252,10 @@ static void gen8_ggtt_insert_entries(struct i915_address_space *vm,
*/

gte = (gen8_pte_t __iomem *)ggtt->gsm;
- gte += vma->node.start / I915_GTT_PAGE_SIZE;
- end = gte + vma->node.size / I915_GTT_PAGE_SIZE;
+ gte += vma_res->start / I915_GTT_PAGE_SIZE;
+ end = gte + vma_res->node_size / I915_GTT_PAGE_SIZE;

- for_each_sgt_daddr(addr, iter, vma->pages)
+ for_each_sgt_daddr(addr, iter, vma_res->bi.pages)
gen8_set_pte(gte++, pte_encode | addr);
GEM_BUG_ON(gte > end);

@@ -292,7 +292,7 @@ static void gen6_ggtt_insert_page(struct i915_address_space *vm,
* through the GMADR mapped BAR (i915->mm.gtt->gtt).
*/
static void gen6_ggtt_insert_entries(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level level,
u32 flags)
{
@@ -303,10 +303,10 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm,
dma_addr_t addr;

gte = (gen6_pte_t __iomem *)ggtt->gsm;
- gte += vma->node.start / I915_GTT_PAGE_SIZE;
- end = gte + vma->node.size / I915_GTT_PAGE_SIZE;
+ gte += vma_res->start / I915_GTT_PAGE_SIZE;
+ end = gte + vma_res->node_size / I915_GTT_PAGE_SIZE;

- for_each_sgt_daddr(addr, iter, vma->pages)
+ for_each_sgt_daddr(addr, iter, vma_res->bi.pages)
iowrite32(vm->pte_encode(addr, level, flags), gte++);
GEM_BUG_ON(gte > end);

@@ -389,7 +389,7 @@ static void bxt_vtd_ggtt_insert_page__BKL(struct i915_address_space *vm,

struct insert_entries {
struct i915_address_space *vm;
- struct i915_vma *vma;
+ struct i915_vma_resource *vma_res;
enum i915_cache_level level;
u32 flags;
};
@@ -398,18 +398,18 @@ static int bxt_vtd_ggtt_insert_entries__cb(void *_arg)
{
struct insert_entries *arg = _arg;

- gen8_ggtt_insert_entries(arg->vm, arg->vma, arg->level, arg->flags);
+ gen8_ggtt_insert_entries(arg->vm, arg->vma_res, arg->level, arg->flags);
bxt_vtd_ggtt_wa(arg->vm);

return 0;
}

static void bxt_vtd_ggtt_insert_entries__BKL(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level level,
u32 flags)
{
- struct insert_entries arg = { vm, vma, level, flags };
+ struct insert_entries arg = { vm, vma_res, level, flags };

stop_machine(bxt_vtd_ggtt_insert_entries__cb, &arg, NULL);
}
@@ -448,14 +448,14 @@ static void i915_ggtt_insert_page(struct i915_address_space *vm,
}

static void i915_ggtt_insert_entries(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 unused)
{
unsigned int flags = (cache_level == I915_CACHE_NONE) ?
AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY;

- intel_gtt_insert_sg_entries(vma->pages, vma->node.start >> PAGE_SHIFT,
+ intel_gtt_insert_sg_entries(vma_res->bi.pages, vma_res->start >> PAGE_SHIFT,
flags);
}

@@ -467,30 +467,32 @@ static void i915_ggtt_clear_range(struct i915_address_space *vm,

static void ggtt_bind_vma(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
- struct drm_i915_gem_object *obj = vma->obj;
u32 pte_flags;

- if (i915_vma_is_bound(vma, ~flags & I915_VMA_BIND_MASK))
+ if (vma_res->bound_flags & (~flags & I915_VMA_BIND_MASK))
return;

+ vma_res->bound_flags |= flags;
+
/* Applicable to VLV (gen8+ do not support RO in the GGTT) */
pte_flags = 0;
- if (i915_gem_object_is_readonly(obj))
+ if (vma_res->bi.readonly)
pte_flags |= PTE_READ_ONLY;
- if (i915_gem_object_is_lmem(obj))
+ if (vma_res->bi.lmem)
pte_flags |= PTE_LM;

- vm->insert_entries(vm, vma, cache_level, pte_flags);
- vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;
+ vm->insert_entries(vm, vma_res, cache_level, pte_flags);
+ vma_res->page_sizes_gtt = I915_GTT_PAGE_SIZE;
}

-static void ggtt_unbind_vma(struct i915_address_space *vm, struct i915_vma *vma)
+static void ggtt_unbind_vma(struct i915_address_space *vm,
+ struct i915_vma_resource *vma_res)
{
- vm->clear_range(vm, vma->node.start, vma->size);
+ vm->clear_range(vm, vma_res->start, vma_res->vma_size);
}

static int ggtt_reserve_guc_top(struct i915_ggtt *ggtt)
@@ -623,7 +625,7 @@ static int init_ggtt(struct i915_ggtt *ggtt)

static void aliasing_gtt_bind_vma(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
@@ -631,25 +633,27 @@ static void aliasing_gtt_bind_vma(struct i915_address_space *vm,

/* Currently applicable only to VLV */
pte_flags = 0;
- if (i915_gem_object_is_readonly(vma->obj))
+ if (vma_res->bi.readonly)
pte_flags |= PTE_READ_ONLY;

if (flags & I915_VMA_LOCAL_BIND)
ppgtt_bind_vma(&i915_vm_to_ggtt(vm)->alias->vm,
- stash, vma, cache_level, flags);
+ stash, vma_res, cache_level, flags);

if (flags & I915_VMA_GLOBAL_BIND)
- vm->insert_entries(vm, vma, cache_level, pte_flags);
+ vm->insert_entries(vm, vma_res, cache_level, pte_flags);
+
+ vma_res->bound_flags |= flags;
}

static void aliasing_gtt_unbind_vma(struct i915_address_space *vm,
- struct i915_vma *vma)
+ struct i915_vma_resource *vma_res)
{
- if (i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND))
- vm->clear_range(vm, vma->node.start, vma->size);
+ if (vma_res->bound_flags & I915_VMA_GLOBAL_BIND)
+ vm->clear_range(vm, vma_res->start, vma_res->vma_size);

- if (i915_vma_is_bound(vma, I915_VMA_LOCAL_BIND))
- ppgtt_unbind_vma(&i915_vm_to_ggtt(vm)->alias->vm, vma);
+ if (vma_res->bound_flags & I915_VMA_LOCAL_BIND)
+ ppgtt_unbind_vma(&i915_vm_to_ggtt(vm)->alias->vm, vma_res);
}

static int init_aliasing_ppgtt(struct i915_ggtt *ggtt)
@@ -1280,7 +1284,7 @@ bool i915_ggtt_resume_vm(struct i915_address_space *vm)
atomic_read(&vma->flags) & I915_VMA_BIND_MASK;

GEM_BUG_ON(!was_bound);
- vma->ops->bind_vma(vm, NULL, vma,
+ vma->ops->bind_vma(vm, NULL, vma->resource,
obj ? obj->cache_level : 0,
was_bound);
if (obj) { /* only used during resume => exclusive access */
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h
index 177b42b935a1..676b839d1a34 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.h
@@ -27,6 +27,7 @@

#include "gt/intel_reset.h"
#include "i915_selftest.h"
+#include "i915_vma_resource.h"
#include "i915_vma_types.h"

#define I915_GFP_ALLOW_FAIL (GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN)
@@ -200,7 +201,7 @@ struct i915_vma_ops {
/* Map an object into an address space with the given cache flags. */
void (*bind_vma)(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags);
/*
@@ -208,7 +209,8 @@ struct i915_vma_ops {
* setting the valid PTE entries to a reserved scratch page.
*/
void (*unbind_vma)(struct i915_address_space *vm,
- struct i915_vma *vma);
+ struct i915_vma_resource *vma_res);
+
};

struct i915_address_space {
@@ -285,7 +287,7 @@ struct i915_address_space {
enum i915_cache_level cache_level,
u32 flags);
void (*insert_entries)(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags);
void (*cleanup)(struct i915_address_space *vm);
@@ -600,11 +602,11 @@ void gen6_ggtt_invalidate(struct i915_ggtt *ggtt);

void ppgtt_bind_vma(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags);
void ppgtt_unbind_vma(struct i915_address_space *vm,
- struct i915_vma *vma);
+ struct i915_vma_resource *vma_res);

void gtt_write_workarounds(struct intel_gt *gt);

@@ -627,8 +629,8 @@ __vm_create_scratch_for_read_pinned(struct i915_address_space *vm, unsigned long
static inline struct sgt_dma {
struct scatterlist *sg;
dma_addr_t dma, max;
-} sgt_dma(struct i915_vma *vma) {
- struct scatterlist *sg = vma->pages->sgl;
+} sgt_dma(struct i915_vma_resource *vma_res) {
+ struct scatterlist *sg = vma_res->bi.pages->sgl;
dma_addr_t addr = sg_dma_address(sg);

return (struct sgt_dma){ sg, addr, addr + sg_dma_len(sg) };
diff --git a/drivers/gpu/drm/i915/gt/intel_ppgtt.c b/drivers/gpu/drm/i915/gt/intel_ppgtt.c
index 083b3090c69c..48e6e2f87700 100644
--- a/drivers/gpu/drm/i915/gt/intel_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ppgtt.c
@@ -179,32 +179,34 @@ struct i915_ppgtt *i915_ppgtt_create(struct intel_gt *gt,

void ppgtt_bind_vma(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
u32 pte_flags;

- if (!test_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma))) {
- vm->allocate_va_range(vm, stash, vma->node.start, vma->size);
- set_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma));
+ if (!vma_res->allocated) {
+ vm->allocate_va_range(vm, stash, vma_res->start,
+ vma_res->vma_size);
+ vma_res->allocated = true;
}

/* Applicable to VLV, and gen8+ */
pte_flags = 0;
- if (i915_gem_object_is_readonly(vma->obj))
+ if (vma_res->bi.readonly)
pte_flags |= PTE_READ_ONLY;
- if (i915_gem_object_is_lmem(vma->obj))
+ if (vma_res->bi.lmem)
pte_flags |= PTE_LM;

- vm->insert_entries(vm, vma, cache_level, pte_flags);
+ vm->insert_entries(vm, vma_res, cache_level, pte_flags);
wmb();
}

-void ppgtt_unbind_vma(struct i915_address_space *vm, struct i915_vma *vma)
+void ppgtt_unbind_vma(struct i915_address_space *vm,
+ struct i915_vma_resource *vma_res)
{
- if (test_and_clear_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma)))
- vm->clear_range(vm, vma->node.start, vma->size);
+ if (vma_res->allocated)
+ vm->clear_range(vm, vma_res->start, vma_res->vma_size);
}

static unsigned long pd_count(u64 size, int shift)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index a5af05bde6f2..777fc6f0ceff 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -448,20 +448,19 @@ static void uc_fw_bind_ggtt(struct intel_uc_fw *uc_fw)
{
struct drm_i915_gem_object *obj = uc_fw->obj;
struct i915_ggtt *ggtt = __uc_fw_to_gt(uc_fw)->ggtt;
- struct i915_vma *dummy = &uc_fw->dummy;
+ struct i915_vma_resource *dummy = &uc_fw->dummy;
u32 pte_flags = 0;

- dummy->node.start = uc_fw_ggtt_offset(uc_fw);
- dummy->node.size = obj->base.size;
- dummy->pages = obj->mm.pages;
- dummy->vm = &ggtt->vm;
+ dummy->start = uc_fw_ggtt_offset(uc_fw);
+ dummy->node_size = obj->base.size;
+ dummy->bi.pages = obj->mm.pages;

GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
- GEM_BUG_ON(dummy->node.size > ggtt->uc_fw.size);
+ GEM_BUG_ON(dummy->node_size > ggtt->uc_fw.size);

/* uc_fw->obj cache domains were not controlled across suspend */
if (i915_gem_object_has_struct_page(obj))
- drm_clflush_sg(dummy->pages);
+ drm_clflush_sg(dummy->bi.pages);

if (i915_gem_object_is_lmem(obj))
pte_flags |= PTE_LM;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
index d9d1dc0b4cbb..3229018877d3 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h
@@ -85,7 +85,7 @@ struct intel_uc_fw {
* threaded as it done during driver load (inherently single threaded)
* or during a GT reset (mutex guarantees single threaded).
*/
- struct i915_vma dummy;
+ struct i915_vma_resource dummy;
struct i915_vma *rsa_data;

/*
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index e0e052cdf8b8..f7d1feba5aa4 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -170,7 +170,8 @@ i915_debugfs_describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
seq_printf(m, " (%s offset: %08llx, size: %08llx, pages: %s",
stringify_vma_type(vma),
vma->node.start, vma->node.size,
- stringify_page_sizes(vma->page_sizes.gtt, NULL, 0));
+ stringify_page_sizes(vma->resource->page_sizes_gtt,
+ NULL, 0));
if (i915_vma_is_ggtt(vma) || i915_vma_is_dpt(vma)) {
switch (vma->ggtt_view.type) {
case I915_GGTT_VIEW_NORMAL:
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 5ae812d60abe..1af54ff374f9 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1040,9 +1040,9 @@ i915_vma_coredump_create(const struct intel_gt *gt,
strcpy(dst->name, vsnap->name);
dst->next = NULL;

- dst->gtt_offset = vsnap->gtt_offset;
- dst->gtt_size = vsnap->gtt_size;
- dst->gtt_page_sizes = vsnap->page_sizes;
+ dst->gtt_offset = vsnap->vma_resource->start;
+ dst->gtt_size = vsnap->vma_resource->node_size;
+ dst->gtt_page_sizes = vsnap->vma_resource->page_sizes_gtt;
dst->unused = 0;

ret = -EINVAL;
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 7097c5016431..1d4e448d22d9 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -298,7 +298,7 @@ static void __vma_bind(struct dma_fence_work *work)
struct i915_vma *vma = vw->vma;

vma->ops->bind_vma(vw->vm, &vw->stash,
- vma, vw->cache_level, vw->flags);
+ vma->resource, vw->cache_level, vw->flags);
}

static void __vma_release(struct dma_fence_work *work)
@@ -375,6 +375,21 @@ static int i915_vma_verify_bind_complete(struct i915_vma *vma)
#define i915_vma_verify_bind_complete(_vma) 0
#endif

+I915_SELFTEST_EXPORT void
+i915_vma_resource_init_from_vma(struct i915_vma_resource *vma_res,
+ struct i915_vma *vma)
+{
+ struct drm_i915_gem_object *obj = vma->obj;
+
+ i915_vma_resource_init(vma_res, vma->pages, &vma->page_sizes,
+ i915_gem_object_is_readonly(obj),
+ i915_gem_object_is_lmem(obj),
+ vma->private,
+ vma->node.start,
+ vma->node.size,
+ vma->size);
+}
+
/**
* i915_vma_bind - Sets up PTEs for an VMA in it's corresponding address space.
* @vma: VMA to map
@@ -432,7 +447,7 @@ int i915_vma_bind(struct i915_vma *vma,
GEM_WARN_ON(!vma_flags);
kfree(vma_res);
} else {
- i915_vma_resource_init(vma_res);
+ i915_vma_resource_init_from_vma(vma_res, vma);
vma->resource = vma_res;
}
trace_i915_vma_bind(vma, bind_flags);
@@ -472,7 +487,8 @@ int i915_vma_bind(struct i915_vma *vma,
if (ret)
return ret;
}
- vma->ops->bind_vma(vma->vm, NULL, vma, cache_level, bind_flags);
+ vma->ops->bind_vma(vma->vm, NULL, vma->resource, cache_level,
+ bind_flags);
}

atomic_or(bind_flags, &vma->flags);
@@ -1778,7 +1794,7 @@ void __i915_vma_evict(struct i915_vma *vma)

if (likely(atomic_read(&vma->vm->open))) {
trace_i915_vma_unbind(vma);
- vma->ops->unbind_vma(vma->vm, vma);
+ vma->ops->unbind_vma(vma->vm, vma->resource);
}
atomic_and(~(I915_VMA_BIND_MASK | I915_VMA_ERROR | I915_VMA_GGTT_WRITE),
&vma->flags);
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index de0f3e44cdfa..1df57ec832bd 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -339,12 +339,6 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma);
*/
void i915_vma_unpin_iomap(struct i915_vma *vma);

-static inline struct page *i915_vma_first_page(struct i915_vma *vma)
-{
- GEM_BUG_ON(!vma->pages);
- return sg_page(vma->pages->sgl);
-}
-
/**
* i915_vma_pin_fence - pin fencing state
* @vma: vma to pin fencing for
@@ -445,6 +439,11 @@ i915_vma_get_current_resource(struct i915_vma *vma)
return i915_vma_resource_get(vma->resource);
}

+#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
+void i915_vma_resource_init_from_vma(struct i915_vma_resource *vma_res,
+ struct i915_vma *vma);
+#endif
+
void i915_vma_module_exit(void);
int i915_vma_module_init(void);

diff --git a/drivers/gpu/drm/i915/i915_vma_resource.c b/drivers/gpu/drm/i915/i915_vma_resource.c
index 833e987bed2a..c86db89ab5d2 100644
--- a/drivers/gpu/drm/i915/i915_vma_resource.c
+++ b/drivers/gpu/drm/i915/i915_vma_resource.c
@@ -23,15 +23,12 @@ static struct dma_fence_ops unbind_fence_ops = {
};

/**
- * i915_vma_resource_init - Initialize a vma resource.
+ * __i915_vma_resource_init - Initialize a vma resource.
* @vma_res: The vma resource to initialize
*
- * Initializes a vma resource allocated using i915_vma_resource_alloc().
- * The reason for having separate allocate and initialize function is that
- * initialization may need to be performed from under a lock where
- * allocation is not allowed.
+ * Initializes the private members of a vma resource.
*/
-void i915_vma_resource_init(struct i915_vma_resource *vma_res)
+void __i915_vma_resource_init(struct i915_vma_resource *vma_res)
{
spin_lock_init(&vma_res->lock);
dma_fence_init(&vma_res->unbind_fence, &unbind_fence_ops,
diff --git a/drivers/gpu/drm/i915/i915_vma_resource.h b/drivers/gpu/drm/i915/i915_vma_resource.h
index 34744da23072..9872de58268b 100644
--- a/drivers/gpu/drm/i915/i915_vma_resource.h
+++ b/drivers/gpu/drm/i915/i915_vma_resource.h
@@ -9,6 +9,25 @@
#include <linux/dma-fence.h>
#include <linux/refcount.h>

+#include "i915_gem.h"
+
+struct i915_page_sizes {
+ /**
+ * The sg mask of the pages sg_table. i.e the mask of
+ * the lengths for each sg entry.
+ */
+ unsigned int phys;
+
+ /**
+ * The gtt page sizes we are allowed to use given the
+ * sg mask and the supported page sizes. This will
+ * express the smallest unit we can use for the whole
+ * object, as well as the larger sizes we may be able
+ * to use opportunistically.
+ */
+ unsigned int sg;
+};
+
/**
* struct i915_vma_resource - Snapshotted unbind information.
* @unbind_fence: Fence to mark unbinding complete. Note that this fence
@@ -20,6 +39,13 @@
* @hold_count: Number of holders blocking the fence from finishing.
* The vma itself is keeping a hold, which is released when unbind
* is scheduled.
+ * @private: Bind backend private info.
+ * @start: Offset into the address space of bind range start.
+ * @node_size: Size of the allocated range manager node.
+ * @vma_size: Bind size.
+ * @page_sizes_gtt: Resulting page sizes from the bind operation.
+ * @bound_flags: Flags indicating binding status.
+ * @allocated: Backend private data. TODO: Should move into @private.
*
* The lifetime of a struct i915_vma_resource is from a binding request to
* the actual possible asynchronous unbind has completed.
@@ -29,6 +55,32 @@ struct i915_vma_resource {
/* See above for description of the lock. */
spinlock_t lock;
refcount_t hold_count;
+
+ /**
+ * struct i915_vma_bindinfo - Information needed for async bind
+ * only but that can be dropped after the bind has taken place.
+ * Consider making this a separate argument to the bind_vma
+ * op, coalescing with other arguments like vm, stash, cache_level
+ * and flags
+ * @pages: The pages sg-table.
+ * @page_sizes: Page sizes of the pages.
+ * @readonly: Whether the vma should be bound read-only.
+ * @lmem: Whether the vma points to lmem.
+ */
+ struct i915_vma_bindinfo {
+ struct sg_table *pages;
+ struct i915_page_sizes page_sizes;
+ bool readonly:1;
+ bool lmem:1;
+ } bi;
+
+ void *private;
+ unsigned long start;
+ unsigned long node_size;
+ unsigned long vma_size;
+ u32 page_sizes_gtt;
+ u32 bound_flags;
+ bool allocated:1;
};

bool i915_vma_resource_hold(struct i915_vma_resource *vma_res,
@@ -41,6 +93,8 @@ struct i915_vma_resource *i915_vma_resource_alloc(void);

struct dma_fence *i915_vma_resource_unbind(struct i915_vma_resource *vma_res);

+void __i915_vma_resource_init(struct i915_vma_resource *vma_res);
+
/**
* i915_vma_resource_get - Take a reference on a vma resource
* @vma_res: The vma resource on which to take a reference.
@@ -63,8 +117,47 @@ static inline void i915_vma_resource_put(struct i915_vma_resource *vma_res)
dma_fence_put(&vma_res->unbind_fence);
}

-#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-void i915_vma_resource_init(struct i915_vma_resource *vma_res);
-#endif
+/**
+ * i915_vma_resource_init - Initialize a vma resource.
+ * @vma_res: The vma resource to initialize
+ * @pages: The pages sg-table.
+ * @page_sizes: Page sizes of the pages.
+ * @readonly: Whether the vma should be bound read-only.
+ * @lmem: Whether the vma points to lmem.
+ * @private: Bind backend private info.
+ * @start: Offset into the address space of bind range start.
+ * @node_size: Size of the allocated range manager node.
+ * @size: Bind size.
+ *
+ * Initializes a vma resource allocated using i915_vma_resource_alloc().
+ * The reason for having separate allocate and initialize function is that
+ * initialization may need to be performed from under a lock where
+ * allocation is not allowed.
+ */
+static inline void i915_vma_resource_init(struct i915_vma_resource *vma_res,
+ struct sg_table *pages,
+ const struct i915_page_sizes *page_sizes,
+ bool readonly,
+ bool lmem,
+ void *private,
+ unsigned long start,
+ unsigned long node_size,
+ unsigned long size)
+{
+ __i915_vma_resource_init(vma_res);
+ vma_res->bi.pages = pages;
+ vma_res->bi.page_sizes = *page_sizes;
+ vma_res->bi.readonly = readonly;
+ vma_res->bi.lmem = lmem;
+ vma_res->private = private;
+ vma_res->start = start;
+ vma_res->node_size = node_size;
+ vma_res->vma_size = size;
+}
+
+static inline void i915_vma_resource_fini(struct i915_vma_resource *vma_res)
+{
+ GEM_BUG_ON(refcount_read(&vma_res->hold_count) != 1);
+}

#endif
diff --git a/drivers/gpu/drm/i915/i915_vma_snapshot.c b/drivers/gpu/drm/i915/i915_vma_snapshot.c
index f7333c7a2f5e..69f62c1ca967 100644
--- a/drivers/gpu/drm/i915/i915_vma_snapshot.c
+++ b/drivers/gpu/drm/i915/i915_vma_snapshot.c
@@ -24,11 +24,7 @@ void i915_vma_snapshot_init(struct i915_vma_snapshot *vsnap,
assert_object_held(vma->obj);

vsnap->name = name;
- vsnap->size = vma->size;
vsnap->obj_size = vma->obj->base.size;
- vsnap->gtt_offset = vma->node.start;
- vsnap->gtt_size = vma->node.size;
- vsnap->page_sizes = vma->page_sizes.gtt;
vsnap->pages = vma->pages;
vsnap->pages_rsgt = NULL;
vsnap->mr = NULL;
diff --git a/drivers/gpu/drm/i915/i915_vma_snapshot.h b/drivers/gpu/drm/i915/i915_vma_snapshot.h
index e74588dd676b..1b08ce9f8576 100644
--- a/drivers/gpu/drm/i915/i915_vma_snapshot.h
+++ b/drivers/gpu/drm/i915/i915_vma_snapshot.h
@@ -23,31 +23,23 @@ struct sg_table;

/**
* struct i915_vma_snapshot - Snapshot of vma metadata.
- * @size: The vma size in bytes.
* @obj_size: The size of the underlying object in bytes.
- * @gtt_offset: The gtt offset the vma is bound to.
- * @gtt_size: The size in bytes allocated for the vma in the GTT.
* @pages: The struct sg_table pointing to the pages bound.
* @pages_rsgt: The refcounted sg_table holding the reference for @pages if any.
* @mr: The memory region pointed for the pages bound.
* @kref: Reference for this structure.
* @vma_resource: Pointer to the vma resource representing the vma binding.
- * @page_sizes: The vma GTT page sizes information.
* @onstack: Whether the structure shouldn't be freed on final put.
* @present: Whether the structure is present and initialized.
*/
struct i915_vma_snapshot {
const char *name;
- size_t size;
size_t obj_size;
- size_t gtt_offset;
- size_t gtt_size;
struct sg_table *pages;
struct i915_refct_sgt *pages_rsgt;
struct intel_memory_region *mr;
struct kref kref;
struct i915_vma_resource *vma_resource;
- u32 page_sizes;
bool onstack:1;
bool present:1;
};
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 54be880e55c3..70b5c47890b9 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -239,11 +239,11 @@ static int lowlevel_hole(struct i915_address_space *vm,
unsigned long end_time)
{
I915_RND_STATE(seed_prng);
- struct i915_vma *mock_vma;
+ struct i915_vma_resource *mock_vma_res;
unsigned int size;

- mock_vma = kzalloc(sizeof(*mock_vma), GFP_KERNEL);
- if (!mock_vma)
+ mock_vma_res = kzalloc(sizeof(*mock_vma_res), GFP_KERNEL);
+ if (!mock_vma_res)
return -ENOMEM;

/* Keep creating larger objects until one cannot fit into the hole */
@@ -269,7 +269,7 @@ static int lowlevel_hole(struct i915_address_space *vm,
break;
} while (count >>= 1);
if (!count) {
- kfree(mock_vma);
+ kfree(mock_vma_res);
return -ENOMEM;
}
GEM_BUG_ON(!order);
@@ -343,12 +343,12 @@ static int lowlevel_hole(struct i915_address_space *vm,
break;
}

- mock_vma->pages = obj->mm.pages;
- mock_vma->node.size = BIT_ULL(size);
- mock_vma->node.start = addr;
+ mock_vma_res->bi.pages = obj->mm.pages;
+ mock_vma_res->node_size = BIT_ULL(size);
+ mock_vma_res->start = addr;

with_intel_runtime_pm(vm->gt->uncore->rpm, wakeref)
- vm->insert_entries(vm, mock_vma,
+ vm->insert_entries(vm, mock_vma_res,
I915_CACHE_NONE, 0);
}
count = n;
@@ -371,7 +371,7 @@ static int lowlevel_hole(struct i915_address_space *vm,
cleanup_freed_objects(vm->i915);
}

- kfree(mock_vma);
+ kfree(mock_vma_res);
return 0;
}

@@ -1280,6 +1280,7 @@ static void track_vma_bind(struct i915_vma *vma)
atomic_set(&vma->pages_count, I915_VMA_PAGES_ACTIVE);
__i915_gem_object_pin_pages(obj);
vma->pages = obj->mm.pages;
+ vma->resource->bi.pages = vma->pages;

mutex_lock(&vma->vm->mutex);
list_add_tail(&vma->vm_link, &vma->vm->bound_list);
@@ -1354,7 +1355,7 @@ static int reserve_gtt_with_resource(struct i915_vma *vma, u64 offset)
obj->cache_level,
0);
if (!err) {
- i915_vma_resource_init(vma_res);
+ i915_vma_resource_init_from_vma(vma_res, vma);
vma->resource = vma_res;
} else {
kfree(vma_res);
@@ -1533,7 +1534,7 @@ static int insert_gtt_with_resource(struct i915_vma *vma)
err = i915_gem_gtt_insert(vm, &vma->node, obj->base.size, 0,
obj->cache_level, 0, vm->total, 0);
if (!err) {
- i915_vma_resource_init(vma_res);
+ i915_vma_resource_init_from_vma(vma_res, vma);
vma->resource = vma_res;
} else {
kfree(vma_res);
@@ -1958,6 +1959,7 @@ static int igt_cs_tlb(void *arg)
struct i915_vm_pt_stash stash = {};
struct i915_request *rq;
struct i915_gem_ww_ctx ww;
+ struct i915_vma_resource *vma_res;
u64 offset;

offset = igt_random_offset(&prng,
@@ -1978,6 +1980,13 @@ static int igt_cs_tlb(void *arg)
if (err)
goto end;

+ vma_res = i915_vma_resource_alloc();
+ if (IS_ERR(vma_res)) {
+ i915_vma_put_pages(vma);
+ err = PTR_ERR(vma_res);
+ goto end;
+ }
+
i915_gem_ww_ctx_init(&ww, false);
retry:
err = i915_vm_lock_objects(vm, &ww);
@@ -1999,33 +2008,41 @@ static int igt_cs_tlb(void *arg)
goto retry;
}
i915_gem_ww_ctx_fini(&ww);
- if (err)
+ if (err) {
+ kfree(vma_res);
goto end;
+ }

+ i915_vma_resource_init_from_vma(vma_res, vma);
/* Prime the TLB with the dummy pages */
for (i = 0; i < count; i++) {
- vma->node.start = offset + i * PAGE_SIZE;
- vm->insert_entries(vm, vma, I915_CACHE_NONE, 0);
+ vma_res->start = offset + i * PAGE_SIZE;
+ vm->insert_entries(vm, vma_res, I915_CACHE_NONE,
+ 0);

- rq = submit_batch(ce, vma->node.start);
+ rq = submit_batch(ce, vma_res->start);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
+ i915_vma_resource_fini(vma_res);
+ kfree(vma_res);
goto end;
}
i915_request_put(rq);
}
-
+ i915_vma_resource_fini(vma_res);
i915_vma_put_pages(vma);

err = context_sync(ce);
if (err) {
pr_err("%s: dummy setup timed out\n",
ce->engine->name);
+ kfree(vma_res);
goto end;
}

vma = i915_vma_instance(act, vm, NULL);
if (IS_ERR(vma)) {
+ kfree(vma_res);
err = PTR_ERR(vma);
goto end;
}
@@ -2033,19 +2050,22 @@ static int igt_cs_tlb(void *arg)
i915_gem_object_lock(act, NULL);
err = i915_vma_get_pages(vma);
i915_gem_object_unlock(act);
- if (err)
+ if (err) {
+ kfree(vma_res);
goto end;
+ }

+ i915_vma_resource_init_from_vma(vma_res, vma);
/* Replace the TLB with target batches */
for (i = 0; i < count; i++) {
struct i915_request *rq;
u32 *cs = batch + i * 64 / sizeof(*cs);
u64 addr;

- vma->node.start = offset + i * PAGE_SIZE;
- vm->insert_entries(vm, vma, I915_CACHE_NONE, 0);
+ vma_res->start = offset + i * PAGE_SIZE;
+ vm->insert_entries(vm, vma_res, I915_CACHE_NONE, 0);

- addr = vma->node.start + i * 64;
+ addr = vma_res->start + i * 64;
cs[4] = MI_NOOP;
cs[6] = lower_32_bits(addr);
cs[7] = upper_32_bits(addr);
@@ -2054,6 +2074,8 @@ static int igt_cs_tlb(void *arg)
rq = submit_batch(ce, addr);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
+ i915_vma_resource_fini(vma_res);
+ kfree(vma_res);
goto end;
}

@@ -2070,6 +2092,8 @@ static int igt_cs_tlb(void *arg)
}
end_spin(batch, count - 1);

+ i915_vma_resource_fini(vma_res);
+ kfree(vma_res);
i915_vma_put_pages(vma);

err = context_sync(ce);
diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c
index 1802baf80a17..d40519e3ca38 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c
@@ -33,23 +33,23 @@ static void mock_insert_page(struct i915_address_space *vm,
}

static void mock_insert_entries(struct i915_address_space *vm,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level level, u32 flags)
{
}

static void mock_bind_ppgtt(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
GEM_BUG_ON(flags & I915_VMA_GLOBAL_BIND);
- set_bit(I915_VMA_LOCAL_BIND_BIT, __i915_vma_flags(vma));
+ vma_res->bound_flags |= flags;
}

static void mock_unbind_ppgtt(struct i915_address_space *vm,
- struct i915_vma *vma)
+ struct i915_vma_resource *vma_res)
{
}

@@ -93,14 +93,14 @@ struct i915_ppgtt *mock_ppgtt(struct drm_i915_private *i915, const char *name)

static void mock_bind_ggtt(struct i915_address_space *vm,
struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
+ struct i915_vma_resource *vma_res,
enum i915_cache_level cache_level,
u32 flags)
{
}

static void mock_unbind_ggtt(struct i915_address_space *vm,
- struct i915_vma *vma)
+ struct i915_vma_resource *vma_res)
{
}

--
2.31.1