[PATCH] drm/i915: Kill the fake lmem support

[PATCH] drm/i915: Kill the fake lmem support

[Lucas De Marchi]

This was useful for early development of lmem, but it's not used
anymore, so remove it.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/Kconfig.unstable       |   8 --
 drivers/gpu/drm/i915/gt/intel_gt.c          |   2 -
 drivers/gpu/drm/i915/gt/intel_region_lmem.c | 112 +-------------------
 drivers/gpu/drm/i915/gt/intel_region_lmem.h |   3 -
 drivers/gpu/drm/i915/i915_driver.c          |  15 ---
 drivers/gpu/drm/i915/i915_params.c          |   5 -
 drivers/gpu/drm/i915/i915_params.h          |   1 -
 7 files changed, 2 insertions(+), 144 deletions(-)

diff --git a/drivers/gpu/drm/i915/Kconfig.unstable b/drivers/gpu/drm/i915/Kconfig.unstable
index 0c2276155c2b..cf151a297ed7 100644
--- a/drivers/gpu/drm/i915/Kconfig.unstable
+++ b/drivers/gpu/drm/i915/Kconfig.unstable
@@ -19,11 +19,3 @@ config DRM_I915_UNSTABLE
 	  Recommended for driver developers _only_.
 
 	  If in the slightest bit of doubt, say "N".
-
-config DRM_I915_UNSTABLE_FAKE_LMEM
-	bool "Enable the experimental fake lmem"
-	depends on DRM_I915_UNSTABLE
-	default n
-	help
-	  Convert some system memory into a fake local memory region for
-	  testing.
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index e8403fa53909..325ac15439eb 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -65,8 +65,6 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
 	int err;
 
 	mem = intel_gt_setup_lmem(gt);
-	if (mem == ERR_PTR(-ENODEV))
-		mem = intel_gt_setup_fake_lmem(gt);
 	if (IS_ERR(mem)) {
 		err = PTR_ERR(mem);
 		if (err == -ENODEV)
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index cb3f66707b21..df3856e09598 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -13,60 +13,6 @@
 #include "gem/i915_gem_ttm.h"
 #include "gt/intel_gt.h"
 
-static int init_fake_lmem_bar(struct intel_memory_region *mem)
-{
-	struct drm_i915_private *i915 = mem->i915;
-	struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
-	unsigned long n;
-	int ret;
-
-	/* We want to 1:1 map the mappable aperture to our reserved region */
-
-	mem->fake_mappable.start = 0;
-	mem->fake_mappable.size = resource_size(&mem->region);
-	mem->fake_mappable.color = I915_COLOR_UNEVICTABLE;
-
-	ret = drm_mm_reserve_node(&ggtt->vm.mm, &mem->fake_mappable);
-	if (ret)
-		return ret;
-
-	mem->remap_addr = dma_map_resource(i915->drm.dev,
-					   mem->region.start,
-					   mem->fake_mappable.size,
-					   DMA_BIDIRECTIONAL,
-					   DMA_ATTR_FORCE_CONTIGUOUS);
-	if (dma_mapping_error(i915->drm.dev, mem->remap_addr)) {
-		drm_mm_remove_node(&mem->fake_mappable);
-		return -EINVAL;
-	}
-
-	for (n = 0; n < mem->fake_mappable.size >> PAGE_SHIFT; ++n) {
-		ggtt->vm.insert_page(&ggtt->vm,
-				     mem->remap_addr + (n << PAGE_SHIFT),
-				     n << PAGE_SHIFT,
-				     I915_CACHE_NONE, 0);
-	}
-
-	mem->region = (struct resource)DEFINE_RES_MEM(mem->remap_addr,
-						      mem->fake_mappable.size);
-
-	return 0;
-}
-
-static void release_fake_lmem_bar(struct intel_memory_region *mem)
-{
-	if (!drm_mm_node_allocated(&mem->fake_mappable))
-		return;
-
-	drm_mm_remove_node(&mem->fake_mappable);
-
-	dma_unmap_resource(mem->i915->drm.dev,
-			   mem->remap_addr,
-			   mem->fake_mappable.size,
-			   DMA_BIDIRECTIONAL,
-			   DMA_ATTR_FORCE_CONTIGUOUS);
-}
-
 static int
 region_lmem_release(struct intel_memory_region *mem)
 {
@@ -74,7 +20,6 @@ region_lmem_release(struct intel_memory_region *mem)
 
 	ret = intel_region_ttm_fini(mem);
 	io_mapping_fini(&mem->iomap);
-	release_fake_lmem_bar(mem);
 
 	return ret;
 }
@@ -84,17 +29,10 @@ region_lmem_init(struct intel_memory_region *mem)
 {
 	int ret;
 
-	if (mem->i915->params.fake_lmem_start) {
-		ret = init_fake_lmem_bar(mem);
-		GEM_BUG_ON(ret);
-	}
-
 	if (!io_mapping_init_wc(&mem->iomap,
 				mem->io_start,
-				resource_size(&mem->region))) {
-		ret = -EIO;
-		goto out_no_io;
-	}
+				resource_size(&mem->region)))
+		return -EIO;
 
 	ret = intel_region_ttm_init(mem);
 	if (ret)
@@ -104,8 +42,6 @@ region_lmem_init(struct intel_memory_region *mem)
 
 out_no_buddy:
 	io_mapping_fini(&mem->iomap);
-out_no_io:
-	release_fake_lmem_bar(mem);
 
 	return ret;
 }
@@ -116,50 +52,6 @@ static const struct intel_memory_region_ops intel_region_lmem_ops = {
 	.init_object = __i915_gem_ttm_object_init,
 };
 
-struct intel_memory_region *
-intel_gt_setup_fake_lmem(struct intel_gt *gt)
-{
-	struct drm_i915_private *i915 = gt->i915;
-	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
-	struct intel_memory_region *mem;
-	resource_size_t mappable_end;
-	resource_size_t io_start;
-	resource_size_t start;
-
-	if (!HAS_LMEM(i915))
-		return ERR_PTR(-ENODEV);
-
-	if (!i915->params.fake_lmem_start)
-		return ERR_PTR(-ENODEV);
-
-	GEM_BUG_ON(i915_ggtt_has_aperture(to_gt(i915)->ggtt));
-
-	/* Your mappable aperture belongs to me now! */
-	mappable_end = pci_resource_len(pdev, 2);
-	io_start = pci_resource_start(pdev, 2);
-	start = i915->params.fake_lmem_start;
-
-	mem = intel_memory_region_create(i915,
-					 start,
-					 mappable_end,
-					 PAGE_SIZE,
-					 io_start,
-					 INTEL_MEMORY_LOCAL,
-					 0,
-					 &intel_region_lmem_ops);
-	if (!IS_ERR(mem)) {
-		drm_info(&i915->drm, "Intel graphics fake LMEM: %pR\n",
-			 &mem->region);
-		drm_info(&i915->drm,
-			 "Intel graphics fake LMEM IO start: %llx\n",
-			(u64)mem->io_start);
-		drm_info(&i915->drm, "Intel graphics fake LMEM size: %llx\n",
-			 (u64)resource_size(&mem->region));
-	}
-
-	return mem;
-}
-
 static bool get_legacy_lowmem_region(struct intel_uncore *uncore,
 				     u64 *start, u32 *size)
 {
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.h b/drivers/gpu/drm/i915/gt/intel_region_lmem.h
index 062d0542ae34..1438576b527a 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.h
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.h
@@ -10,7 +10,4 @@ struct intel_gt;
 
 struct intel_memory_region *intel_gt_setup_lmem(struct intel_gt *gt);
 
-struct intel_memory_region *
-intel_gt_setup_fake_lmem(struct intel_gt *gt);
-
 #endif /* !__INTEL_REGION_LMEM_H */
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 1c67ff735f18..62b3f332bbf5 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -835,21 +835,6 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!i915->params.nuclear_pageflip && match_info->graphics.ver < 5)
 		i915->drm.driver_features &= ~DRIVER_ATOMIC;
 
-	/*
-	 * Check if we support fake LMEM -- for now we only unleash this for
-	 * the live selftests(test-and-exit).
-	 */
-#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-	if (IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)) {
-		if (GRAPHICS_VER(i915) >= 9 && i915_selftest.live < 0 &&
-		    i915->params.fake_lmem_start) {
-			mkwrite_device_info(i915)->memory_regions =
-				REGION_SMEM | REGION_LMEM | REGION_STOLEN_SMEM;
-			GEM_BUG_ON(!HAS_LMEM(i915));
-		}
-	}
-#endif
-
 	ret = pci_enable_device(pdev);
 	if (ret)
 		goto out_fini;
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 525ae832aa9a..eea355c2fc28 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -195,11 +195,6 @@ i915_param_named(enable_gvt, bool, 0400,
 	"Enable support for Intel GVT-g graphics virtualization host support(default:false)");
 #endif
 
-#if IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)
-i915_param_named_unsafe(fake_lmem_start, ulong, 0400,
-	"Fake LMEM start offset (default: 0)");
-#endif
-
 #if CONFIG_DRM_I915_REQUEST_TIMEOUT
 i915_param_named_unsafe(request_timeout_ms, uint, 0600,
 			"Default request/fence/batch buffer expiration timeout.");
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index c9d53ff910a0..c779a6f85c7e 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -72,7 +72,6 @@ struct drm_printer;
 	param(int, fastboot, -1, 0600) \
 	param(int, enable_dpcd_backlight, -1, 0600) \
 	param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \
-	param(unsigned long, fake_lmem_start, 0, IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM) ? 0400 : 0) \
 	param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \
 	/* leave bools at the end to not create holes */ \
 	param(bool, enable_hangcheck, true, 0600) \
-- 
2.35.1

[Intel-gfx] [PATCH] drm/i915: Kill the fake lmem support

[Lucas De Marchi]

This was useful for early development of lmem, but it's not used
anymore, so remove it.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/Kconfig.unstable       |   8 --
 drivers/gpu/drm/i915/gt/intel_gt.c          |   2 -
 drivers/gpu/drm/i915/gt/intel_region_lmem.c | 112 +-------------------
 drivers/gpu/drm/i915/gt/intel_region_lmem.h |   3 -
 drivers/gpu/drm/i915/i915_driver.c          |  15 ---
 drivers/gpu/drm/i915/i915_params.c          |   5 -
 drivers/gpu/drm/i915/i915_params.h          |   1 -
 7 files changed, 2 insertions(+), 144 deletions(-)

diff --git a/drivers/gpu/drm/i915/Kconfig.unstable b/drivers/gpu/drm/i915/Kconfig.unstable
index 0c2276155c2b..cf151a297ed7 100644
--- a/drivers/gpu/drm/i915/Kconfig.unstable
+++ b/drivers/gpu/drm/i915/Kconfig.unstable
@@ -19,11 +19,3 @@ config DRM_I915_UNSTABLE
 	  Recommended for driver developers _only_.
 
 	  If in the slightest bit of doubt, say "N".
-
-config DRM_I915_UNSTABLE_FAKE_LMEM
-	bool "Enable the experimental fake lmem"
-	depends on DRM_I915_UNSTABLE
-	default n
-	help
-	  Convert some system memory into a fake local memory region for
-	  testing.
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index e8403fa53909..325ac15439eb 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -65,8 +65,6 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
 	int err;
 
 	mem = intel_gt_setup_lmem(gt);
-	if (mem == ERR_PTR(-ENODEV))
-		mem = intel_gt_setup_fake_lmem(gt);
 	if (IS_ERR(mem)) {
 		err = PTR_ERR(mem);
 		if (err == -ENODEV)
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index cb3f66707b21..df3856e09598 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -13,60 +13,6 @@
 #include "gem/i915_gem_ttm.h"
 #include "gt/intel_gt.h"
 
-static int init_fake_lmem_bar(struct intel_memory_region *mem)
-{
-	struct drm_i915_private *i915 = mem->i915;
-	struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
-	unsigned long n;
-	int ret;
-
-	/* We want to 1:1 map the mappable aperture to our reserved region */
-
-	mem->fake_mappable.start = 0;
-	mem->fake_mappable.size = resource_size(&mem->region);
-	mem->fake_mappable.color = I915_COLOR_UNEVICTABLE;
-
-	ret = drm_mm_reserve_node(&ggtt->vm.mm, &mem->fake_mappable);
-	if (ret)
-		return ret;
-
-	mem->remap_addr = dma_map_resource(i915->drm.dev,
-					   mem->region.start,
-					   mem->fake_mappable.size,
-					   DMA_BIDIRECTIONAL,
-					   DMA_ATTR_FORCE_CONTIGUOUS);
-	if (dma_mapping_error(i915->drm.dev, mem->remap_addr)) {
-		drm_mm_remove_node(&mem->fake_mappable);
-		return -EINVAL;
-	}
-
-	for (n = 0; n < mem->fake_mappable.size >> PAGE_SHIFT; ++n) {
-		ggtt->vm.insert_page(&ggtt->vm,
-				     mem->remap_addr + (n << PAGE_SHIFT),
-				     n << PAGE_SHIFT,
-				     I915_CACHE_NONE, 0);
-	}
-
-	mem->region = (struct resource)DEFINE_RES_MEM(mem->remap_addr,
-						      mem->fake_mappable.size);
-
-	return 0;
-}
-
-static void release_fake_lmem_bar(struct intel_memory_region *mem)
-{
-	if (!drm_mm_node_allocated(&mem->fake_mappable))
-		return;
-
-	drm_mm_remove_node(&mem->fake_mappable);
-
-	dma_unmap_resource(mem->i915->drm.dev,
-			   mem->remap_addr,
-			   mem->fake_mappable.size,
-			   DMA_BIDIRECTIONAL,
-			   DMA_ATTR_FORCE_CONTIGUOUS);
-}
-
 static int
 region_lmem_release(struct intel_memory_region *mem)
 {
@@ -74,7 +20,6 @@ region_lmem_release(struct intel_memory_region *mem)
 
 	ret = intel_region_ttm_fini(mem);
 	io_mapping_fini(&mem->iomap);
-	release_fake_lmem_bar(mem);
 
 	return ret;
 }
@@ -84,17 +29,10 @@ region_lmem_init(struct intel_memory_region *mem)
 {
 	int ret;
 
-	if (mem->i915->params.fake_lmem_start) {
-		ret = init_fake_lmem_bar(mem);
-		GEM_BUG_ON(ret);
-	}
-
 	if (!io_mapping_init_wc(&mem->iomap,
 				mem->io_start,
-				resource_size(&mem->region))) {
-		ret = -EIO;
-		goto out_no_io;
-	}
+				resource_size(&mem->region)))
+		return -EIO;
 
 	ret = intel_region_ttm_init(mem);
 	if (ret)
@@ -104,8 +42,6 @@ region_lmem_init(struct intel_memory_region *mem)
 
 out_no_buddy:
 	io_mapping_fini(&mem->iomap);
-out_no_io:
-	release_fake_lmem_bar(mem);
 
 	return ret;
 }
@@ -116,50 +52,6 @@ static const struct intel_memory_region_ops intel_region_lmem_ops = {
 	.init_object = __i915_gem_ttm_object_init,
 };
 
-struct intel_memory_region *
-intel_gt_setup_fake_lmem(struct intel_gt *gt)
-{
-	struct drm_i915_private *i915 = gt->i915;
-	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
-	struct intel_memory_region *mem;
-	resource_size_t mappable_end;
-	resource_size_t io_start;
-	resource_size_t start;
-
-	if (!HAS_LMEM(i915))
-		return ERR_PTR(-ENODEV);
-
-	if (!i915->params.fake_lmem_start)
-		return ERR_PTR(-ENODEV);
-
-	GEM_BUG_ON(i915_ggtt_has_aperture(to_gt(i915)->ggtt));
-
-	/* Your mappable aperture belongs to me now! */
-	mappable_end = pci_resource_len(pdev, 2);
-	io_start = pci_resource_start(pdev, 2);
-	start = i915->params.fake_lmem_start;
-
-	mem = intel_memory_region_create(i915,
-					 start,
-					 mappable_end,
-					 PAGE_SIZE,
-					 io_start,
-					 INTEL_MEMORY_LOCAL,
-					 0,
-					 &intel_region_lmem_ops);
-	if (!IS_ERR(mem)) {
-		drm_info(&i915->drm, "Intel graphics fake LMEM: %pR\n",
-			 &mem->region);
-		drm_info(&i915->drm,
-			 "Intel graphics fake LMEM IO start: %llx\n",
-			(u64)mem->io_start);
-		drm_info(&i915->drm, "Intel graphics fake LMEM size: %llx\n",
-			 (u64)resource_size(&mem->region));
-	}
-
-	return mem;
-}
-
 static bool get_legacy_lowmem_region(struct intel_uncore *uncore,
 				     u64 *start, u32 *size)
 {
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.h b/drivers/gpu/drm/i915/gt/intel_region_lmem.h
index 062d0542ae34..1438576b527a 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.h
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.h
@@ -10,7 +10,4 @@ struct intel_gt;
 
 struct intel_memory_region *intel_gt_setup_lmem(struct intel_gt *gt);
 
-struct intel_memory_region *
-intel_gt_setup_fake_lmem(struct intel_gt *gt);
-
 #endif /* !__INTEL_REGION_LMEM_H */
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 1c67ff735f18..62b3f332bbf5 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -835,21 +835,6 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!i915->params.nuclear_pageflip && match_info->graphics.ver < 5)
 		i915->drm.driver_features &= ~DRIVER_ATOMIC;
 
-	/*
-	 * Check if we support fake LMEM -- for now we only unleash this for
-	 * the live selftests(test-and-exit).
-	 */
-#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-	if (IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)) {
-		if (GRAPHICS_VER(i915) >= 9 && i915_selftest.live < 0 &&
-		    i915->params.fake_lmem_start) {
-			mkwrite_device_info(i915)->memory_regions =
-				REGION_SMEM | REGION_LMEM | REGION_STOLEN_SMEM;
-			GEM_BUG_ON(!HAS_LMEM(i915));
-		}
-	}
-#endif
-
 	ret = pci_enable_device(pdev);
 	if (ret)
 		goto out_fini;
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 525ae832aa9a..eea355c2fc28 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -195,11 +195,6 @@ i915_param_named(enable_gvt, bool, 0400,
 	"Enable support for Intel GVT-g graphics virtualization host support(default:false)");
 #endif
 
-#if IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)
-i915_param_named_unsafe(fake_lmem_start, ulong, 0400,
-	"Fake LMEM start offset (default: 0)");
-#endif
-
 #if CONFIG_DRM_I915_REQUEST_TIMEOUT
 i915_param_named_unsafe(request_timeout_ms, uint, 0600,
 			"Default request/fence/batch buffer expiration timeout.");
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index c9d53ff910a0..c779a6f85c7e 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -72,7 +72,6 @@ struct drm_printer;
 	param(int, fastboot, -1, 0600) \
 	param(int, enable_dpcd_backlight, -1, 0600) \
 	param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \
-	param(unsigned long, fake_lmem_start, 0, IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM) ? 0400 : 0) \
 	param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \
 	/* leave bools at the end to not create holes */ \
 	param(bool, enable_hangcheck, true, 0600) \
-- 
2.35.1

Re: [Intel-gfx] [PATCH] drm/i915: Kill the fake lmem support

[Lucas De Marchi]

On Wed, Feb 16, 2022 at 03:18:49PM -0800, Lucas De Marchi wrote:
>This was useful for early development of lmem, but it's not used
>anymore, so remove it.
>
>Cc: Chris Wilson <chris@chris-wilson.co.uk>
>Cc: Matthew Auld <matthew.auld@intel.com>
>Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
>---
> drivers/gpu/drm/i915/Kconfig.unstable       |   8 --
> drivers/gpu/drm/i915/gt/intel_gt.c          |   2 -
> drivers/gpu/drm/i915/gt/intel_region_lmem.c | 112 +-------------------
> drivers/gpu/drm/i915/gt/intel_region_lmem.h |   3 -
> drivers/gpu/drm/i915/i915_driver.c          |  15 ---
> drivers/gpu/drm/i915/i915_params.c          |   5 -
> drivers/gpu/drm/i915/i915_params.h          |   1 -
> 7 files changed, 2 insertions(+), 144 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/Kconfig.unstable b/drivers/gpu/drm/i915/Kconfig.unstable
>index 0c2276155c2b..cf151a297ed7 100644
>--- a/drivers/gpu/drm/i915/Kconfig.unstable
>+++ b/drivers/gpu/drm/i915/Kconfig.unstable
>@@ -19,11 +19,3 @@ config DRM_I915_UNSTABLE
> 	  Recommended for driver developers _only_.
>
> 	  If in the slightest bit of doubt, say "N".
>-
>-config DRM_I915_UNSTABLE_FAKE_LMEM
>-	bool "Enable the experimental fake lmem"
>-	depends on DRM_I915_UNSTABLE
>-	default n
>-	help
>-	  Convert some system memory into a fake local memory region for
>-	  testing.
>diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
>index e8403fa53909..325ac15439eb 100644
>--- a/drivers/gpu/drm/i915/gt/intel_gt.c
>+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
>@@ -65,8 +65,6 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
> 	int err;
>
> 	mem = intel_gt_setup_lmem(gt);
>-	if (mem == ERR_PTR(-ENODEV))
>-		mem = intel_gt_setup_fake_lmem(gt);
> 	if (IS_ERR(mem)) {
> 		err = PTR_ERR(mem);
> 		if (err == -ENODEV)
>diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
>index cb3f66707b21..df3856e09598 100644
>--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
>+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
>@@ -13,60 +13,6 @@
> #include "gem/i915_gem_ttm.h"
> #include "gt/intel_gt.h"
>
>-static int init_fake_lmem_bar(struct intel_memory_region *mem)
>-{
>-	struct drm_i915_private *i915 = mem->i915;
>-	struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
>-	unsigned long n;
>-	int ret;
>-
>-	/* We want to 1:1 map the mappable aperture to our reserved region */
>-
>-	mem->fake_mappable.start = 0;
>-	mem->fake_mappable.size = resource_size(&mem->region);
>-	mem->fake_mappable.color = I915_COLOR_UNEVICTABLE;

I forgot to remove fake_mappable and remap_addr fields from the struct.
I will send a v2 later if people agree to remove the fake lmem.

Lucas De Marchi

[Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915: Kill the fake lmem support

[Patchwork]

== Series Details ==

Series: drm/i915: Kill the fake lmem support
URL   : https://patchwork.freedesktop.org/series/100276/
State : warning

== Summary ==

$ dim sparse --fast origin/drm-tip
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.

[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Kill the fake lmem support

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 4710 bytes --]

== Series Details ==

Series: drm/i915: Kill the fake lmem support
URL   : https://patchwork.freedesktop.org/series/100276/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_11239 -> Patchwork_22306
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22306/index.html

Participating hosts (44 -> 43)
------------------------------

  Additional (2): bat-rpls-1 bat-jsl-2 
  Missing    (3): fi-bsw-cyan shard-tglu fi-kbl-8809g 

Known issues
------------

  Here are the changes found in Patchwork_22306 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_cs_nop@fork-compute0:
    - fi-blb-e6850:       NOTRUN -> [SKIP][1] ([fdo#109271]) +17 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22306/fi-blb-e6850/igt@amdgpu/amd_cs_nop@fork-compute0.html

  * igt@gem_flink_basic@bad-flink:
    - fi-skl-6600u:       [PASS][2] -> [FAIL][3] ([i915#4547])
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11239/fi-skl-6600u/igt@gem_flink_basic@bad-flink.html
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22306/fi-skl-6600u/igt@gem_flink_basic@bad-flink.html

  * igt@kms_frontbuffer_tracking@basic:
    - fi-cml-u2:          [PASS][4] -> [DMESG-WARN][5] ([i915#4269])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11239/fi-cml-u2/igt@kms_frontbuffer_tracking@basic.html
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22306/fi-cml-u2/igt@kms_frontbuffer_tracking@basic.html

  
#### Possible fixes ####

  * igt@gem_exec_suspend@basic-s3@smem:
    - {fi-rkl-11600}:     [INCOMPLETE][6] ([i915#5127]) -> [PASS][7]
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11239/fi-rkl-11600/igt@gem_exec_suspend@basic-s3@smem.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22306/fi-rkl-11600/igt@gem_exec_suspend@basic-s3@smem.html

  * igt@i915_selftest@live@requests:
    - fi-blb-e6850:       [DMESG-FAIL][8] ([i915#4528] / [i915#5026]) -> [PASS][9]
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11239/fi-blb-e6850/igt@i915_selftest@live@requests.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22306/fi-blb-e6850/igt@i915_selftest@live@requests.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#109315]: https://bugs.freedesktop.org/show_bug.cgi?id=109315
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#2582]: https://gitlab.freedesktop.org/drm/intel/issues/2582
  [i915#3012]: https://gitlab.freedesktop.org/drm/intel/issues/3012
  [i915#3282]: https://gitlab.freedesktop.org/drm/intel/issues/3282
  [i915#3291]: https://gitlab.freedesktop.org/drm/intel/issues/3291
  [i915#3301]: https://gitlab.freedesktop.org/drm/intel/issues/3301
  [i915#3708]: https://gitlab.freedesktop.org/drm/intel/issues/3708
  [i915#4098]: https://gitlab.freedesktop.org/drm/intel/issues/4098
  [i915#4103]: https://gitlab.freedesktop.org/drm/intel/issues/4103
  [i915#4269]: https://gitlab.freedesktop.org/drm/intel/issues/4269
  [i915#4312]: https://gitlab.freedesktop.org/drm/intel/issues/4312
  [i915#4528]: https://gitlab.freedesktop.org/drm/intel/issues/4528
  [i915#4547]: https://gitlab.freedesktop.org/drm/intel/issues/4547
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#4898]: https://gitlab.freedesktop.org/drm/intel/issues/4898
  [i915#5026]: https://gitlab.freedesktop.org/drm/intel/issues/5026
  [i915#5127]: https://gitlab.freedesktop.org/drm/intel/issues/5127
  [i915#5137]: https://gitlab.freedesktop.org/drm/intel/issues/5137
  [i915#533]: https://gitlab.freedesktop.org/drm/intel/issues/533


Build changes
-------------

  * Linux: CI_DRM_11239 -> Patchwork_22306

  CI-20190529: 20190529
  CI_DRM_11239: 069b6b1205e457625ecffa88ec32e7ae1fcea76b @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6347: 37ea4c86f97c0e05fcb6b04cff72ec927930536e @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_22306: bd0a69a699476553eaab0329cc4b5877a5231336 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

bd0a69a69947 drm/i915: Kill the fake lmem support

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_22306/index.html

[-- Attachment #2: Type: text/html, Size: 4224 bytes --]