[PATCH 07/22] drm/i915: add io_size plumbing
Matthew Auld
matthew.auld at intel.com
Tue Jan 18 19:35:00 UTC 2022
Signed-off-by: Matthew Auld <matthew.auld at intel.com>
---
drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 8 +++++---
drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 2 +-
drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
drivers/gpu/drm/i915/gt/intel_region_lmem.c | 6 +++++-
drivers/gpu/drm/i915/intel_memory_region.c | 6 +++++-
drivers/gpu/drm/i915/intel_memory_region.h | 2 ++
drivers/gpu/drm/i915/selftests/intel_memory_region.c | 8 ++++----
drivers/gpu/drm/i915/selftests/mock_region.c | 6 ++++--
drivers/gpu/drm/i915/selftests/mock_region.h | 3 ++-
10 files changed, 30 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
index 6c57b0a79c8a..a9aca11cedbb 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
@@ -696,7 +696,7 @@ struct intel_memory_region *i915_gem_shmem_setup(struct drm_i915_private *i915,
{
return intel_memory_region_create(i915, 0,
totalram_pages() << PAGE_SHIFT,
- PAGE_SIZE, 0,
+ PAGE_SIZE, 0, 0,
type, instance,
&shmem_region_ops);
}
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index 26975d857776..387b48686851 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -490,6 +490,7 @@ static int i915_gem_init_stolen(struct intel_memory_region *mem)
/* Exclude the reserved region from driver use */
mem->region.end = reserved_base - 1;
+ mem->io_size = resource_size(&mem->region);
/* It is possible for the reserved area to end before the end of stolen
* memory, so just consider the start. */
@@ -746,7 +747,7 @@ static int init_stolen_lmem(struct intel_memory_region *mem)
if (!io_mapping_init_wc(&mem->iomap,
mem->io_start,
- resource_size(&mem->region)))
+ mem->io_size))
return -EIO;
/*
@@ -801,7 +802,8 @@ i915_gem_stolen_lmem_setup(struct drm_i915_private *i915, u16 type,
I915_GTT_PAGE_SIZE_4K;
mem = intel_memory_region_create(i915, lmem_base, lmem_size,
- min_page_size, io_start,
+ min_page_size,
+ io_start, lmem_size,
type, instance,
&i915_region_stolen_lmem_ops);
if (IS_ERR(mem))
@@ -832,7 +834,7 @@ i915_gem_stolen_smem_setup(struct drm_i915_private *i915, u16 type,
mem = intel_memory_region_create(i915,
intel_graphics_stolen_res.start,
resource_size(&intel_graphics_stolen_res),
- PAGE_SIZE, 0, type, instance,
+ PAGE_SIZE, 0, 0, type, instance,
&i915_region_stolen_smem_ops);
if (IS_ERR(mem))
return mem;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 84cae740b4a5..e1140ca3d9a0 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -1103,7 +1103,7 @@ i915_gem_ttm_system_setup(struct drm_i915_private *i915,
mr = intel_memory_region_create(i915, 0,
totalram_pages() << PAGE_SHIFT,
- PAGE_SIZE, 0,
+ PAGE_SIZE, 0, 0,
type, instance,
&ttm_system_region_ops);
if (IS_ERR(mr))
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index f36191ebf964..42db9cd30978 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -499,7 +499,7 @@ static int igt_mock_memory_region_huge_pages(void *arg)
int bit;
int err = 0;
- mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0);
+ mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0, 0);
if (IS_ERR(mem)) {
pr_err("%s failed to create memory region\n", __func__);
return PTR_ERR(mem);
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index 21215a080088..2c7ec7ff79fd 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -90,7 +90,7 @@ region_lmem_init(struct intel_memory_region *mem)
if (!io_mapping_init_wc(&mem->iomap,
mem->io_start,
- resource_size(&mem->region))) {
+ mem->io_size)) {
ret = -EIO;
goto out_no_io;
}
@@ -143,6 +143,7 @@ intel_gt_setup_fake_lmem(struct intel_gt *gt)
mappable_end,
PAGE_SIZE,
io_start,
+ mappable_end,
INTEL_MEMORY_LOCAL,
0,
&intel_region_lmem_ops);
@@ -219,6 +220,7 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt)
lmem_size,
min_page_size,
io_start,
+ lmem_size,
INTEL_MEMORY_LOCAL,
0,
&intel_region_lmem_ops);
@@ -232,6 +234,8 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt)
drm_dbg(&i915->drm, "Local memory: %pR\n", &mem->region);
drm_dbg(&i915->drm, "Local memory IO start: %pa\n",
&mem->io_start);
+ drm_info(&i915->drm, "Local memory IO size: %pa\n",
+ &mem->io_size);
drm_info(&i915->drm, "Local memory available: %pa\n",
&lmem_size);
diff --git a/drivers/gpu/drm/i915/intel_memory_region.c b/drivers/gpu/drm/i915/intel_memory_region.c
index c70d7e286a51..595e2489c23e 100644
--- a/drivers/gpu/drm/i915/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/intel_memory_region.c
@@ -97,7 +97,7 @@ static int iomemtest(struct intel_memory_region *mem,
bool test_all,
const void *caller)
{
- resource_size_t last = resource_size(&mem->region) - PAGE_SIZE;
+ resource_size_t last = mem->io_size - PAGE_SIZE;
resource_size_t page;
int err;
@@ -205,6 +205,8 @@ static int intel_memory_region_memtest(struct intel_memory_region *mem,
if (!mem->io_start)
return 0;
+ WARN_ON_ONCE(!mem->io_size);
+
if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM) || i915->params.memtest)
err = iomemtest(mem, i915->params.memtest, caller);
@@ -217,6 +219,7 @@ intel_memory_region_create(struct drm_i915_private *i915,
resource_size_t size,
resource_size_t min_page_size,
resource_size_t io_start,
+ resource_size_t io_size,
u16 type,
u16 instance,
const struct intel_memory_region_ops *ops)
@@ -231,6 +234,7 @@ intel_memory_region_create(struct drm_i915_private *i915,
mem->i915 = i915;
mem->region = (struct resource)DEFINE_RES_MEM(start, size);
mem->io_start = io_start;
+ mem->io_size = io_size;
mem->min_page_size = min_page_size;
mem->ops = ops;
mem->total = size;
diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
index 5625c9c38993..459051ce0c91 100644
--- a/drivers/gpu/drm/i915/intel_memory_region.h
+++ b/drivers/gpu/drm/i915/intel_memory_region.h
@@ -71,6 +71,7 @@ struct intel_memory_region {
struct drm_mm_node fake_mappable;
resource_size_t io_start;
+ resource_size_t io_size;
resource_size_t min_page_size;
resource_size_t total;
resource_size_t avail;
@@ -103,6 +104,7 @@ intel_memory_region_create(struct drm_i915_private *i915,
resource_size_t size,
resource_size_t min_page_size,
resource_size_t io_start,
+ resource_size_t io_size,
u16 type,
u16 instance,
const struct intel_memory_region_ops *ops);
diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 7acba1d2135e..247f65f02bbf 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -170,7 +170,7 @@ static int igt_mock_reserve(void *arg)
if (!order)
return 0;
- mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0);
+ mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0, 0);
if (IS_ERR(mem)) {
pr_err("failed to create memory region\n");
err = PTR_ERR(mem);
@@ -383,7 +383,7 @@ static int igt_mock_splintered_region(void *arg)
*/
size = (SZ_4G - 1) & PAGE_MASK;
- mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0);
+ mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0, 0);
if (IS_ERR(mem))
return PTR_ERR(mem);
@@ -471,7 +471,7 @@ static int igt_mock_max_segment(void *arg)
*/
size = SZ_8G;
- mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0);
+ mem = mock_region_create(i915, 0, size, PAGE_SIZE, 0, 0);
if (IS_ERR(mem))
return PTR_ERR(mem);
@@ -1188,7 +1188,7 @@ int intel_memory_region_mock_selftests(void)
if (!i915)
return -ENOMEM;
- mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0);
+ mem = mock_region_create(i915, 0, SZ_2G, I915_GTT_PAGE_SIZE_4K, 0, 0);
if (IS_ERR(mem)) {
pr_err("failed to create memory region\n");
err = PTR_ERR(mem);
diff --git a/drivers/gpu/drm/i915/selftests/mock_region.c b/drivers/gpu/drm/i915/selftests/mock_region.c
index 19bff8afcaaa..467eeae6d5f0 100644
--- a/drivers/gpu/drm/i915/selftests/mock_region.c
+++ b/drivers/gpu/drm/i915/selftests/mock_region.c
@@ -107,7 +107,8 @@ mock_region_create(struct drm_i915_private *i915,
resource_size_t start,
resource_size_t size,
resource_size_t min_page_size,
- resource_size_t io_start)
+ resource_size_t io_start,
+ resource_size_t io_size)
{
int instance = ida_alloc_max(&i915->selftest.mock_region_instances,
TTM_NUM_MEM_TYPES - TTM_PL_PRIV - 1,
@@ -117,6 +118,7 @@ mock_region_create(struct drm_i915_private *i915,
return ERR_PTR(instance);
return intel_memory_region_create(i915, start, size, min_page_size,
- io_start, INTEL_MEMORY_MOCK, instance,
+ io_start, io_size,
+ INTEL_MEMORY_MOCK, instance,
&mock_region_ops);
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_region.h b/drivers/gpu/drm/i915/selftests/mock_region.h
index 329bf74dfaca..e36c3a433551 100644
--- a/drivers/gpu/drm/i915/selftests/mock_region.h
+++ b/drivers/gpu/drm/i915/selftests/mock_region.h
@@ -16,6 +16,7 @@ mock_region_create(struct drm_i915_private *i915,
resource_size_t start,
resource_size_t size,
resource_size_t min_page_size,
- resource_size_t io_start);
+ resource_size_t io_start,
+ resource_size_t io_size);
#endif /* !__MOCK_REGION_H */
--
2.31.1
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