From b1b38278e12b04cf9a227f6af2c24651cf6e8a85 Mon Sep 17 00:00:00 2001 From: David Weinehall Date: Wed, 20 May 2015 17:00:13 +0300 Subject: drm/i915: add a context parameter to {en, dis}able zero address mapping Export a new context parameter that can be set/queried through the context_{get,set}param ioctls. This parameter is passed as a context flag and decides whether or not a GPU address mapping is allowed to be made at address zero. The default is to allow such mappings. Signed-off-by: David Weinehall Acked-by: "Zou, Nanhai" Signed-off-by: Daniel Vetter --- include/uapi/drm/i915_drm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 6e1a2ed116cb..92d61a7c942a 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1106,6 +1106,7 @@ struct drm_i915_gem_context_param { __u32 size; __u64 param; #define I915_CONTEXT_PARAM_BAN_PERIOD 0x1 +#define I915_CONTEXT_PARAM_NO_ZEROMAP 0x2 __u64 value; }; -- cgit v1.2.3 From 49e4d842f0d0892c3d26c93a81b9f22c1467030e Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 15 Jun 2015 12:23:48 +0100 Subject: drm/i915: Report to userspace if we have a (presumed) working GPU reset In igt, we want to test handling of GPU hangs, both for recovery purposes and for reporting. However, we don't want to inject a genuine GPU hang onto a machine that cannot recover and so be permenantly wedged. Rather than embed heuristics into igt, have the kernel report exactly when it expects the GPU reset to work. This can also be usefully extended in future to indicate different levels of fine-grained resets. Signed-off-by: Chris Wilson Cc: Daniel Vetter Cc: Tim Gore Cc: Tomas Elf Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_dma.c | 5 +++++ drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/intel_uncore.c | 28 ++++++++++++++++++++++------ include/uapi/drm/i915_drm.h | 1 + 4 files changed, 29 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 34248635c36c..88795d2f1819 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -163,6 +163,11 @@ static int i915_getparam(struct drm_device *dev, void *data, if (!value) return -ENODEV; break; + case I915_PARAM_HAS_GPU_RESET: + value = i915.enable_hangcheck && + i915.reset && + intel_has_gpu_reset(dev); + break; default: DRM_DEBUG("Unknown parameter %d\n", param->param); return -EINVAL; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 971fc330cc35..44efb4deccb5 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2594,6 +2594,7 @@ extern long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); #endif extern int intel_gpu_reset(struct drm_device *dev); +extern bool intel_has_gpu_reset(struct drm_device *dev); extern int i915_reset(struct drm_device *dev); extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv); extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv); diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index a6d8a3ee7750..4a86cf007aa0 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1455,20 +1455,36 @@ static int gen6_do_reset(struct drm_device *dev) return ret; } -int intel_gpu_reset(struct drm_device *dev) +static int (*intel_get_gpu_reset(struct drm_device *dev))(struct drm_device *) { if (INTEL_INFO(dev)->gen >= 6) - return gen6_do_reset(dev); + return gen6_do_reset; else if (IS_GEN5(dev)) - return ironlake_do_reset(dev); + return ironlake_do_reset; else if (IS_G4X(dev)) - return g4x_do_reset(dev); + return g4x_do_reset; else if (IS_G33(dev)) - return g33_do_reset(dev); + return g33_do_reset; else if (INTEL_INFO(dev)->gen >= 3) - return i915_do_reset(dev); + return i915_do_reset; else + return NULL; +} + +int intel_gpu_reset(struct drm_device *dev) +{ + int (*reset)(struct drm_device *); + + reset = intel_get_gpu_reset(dev); + if (reset == NULL) return -ENODEV; + + return reset(dev); +} + +bool intel_has_gpu_reset(struct drm_device *dev) +{ + return intel_get_gpu_reset(dev) != NULL; } void intel_uncore_check_errors(struct drm_device *dev) diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 92d61a7c942a..f88cc1cac5d9 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -354,6 +354,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_REVISION 32 #define I915_PARAM_SUBSLICE_TOTAL 33 #define I915_PARAM_EU_TOTAL 34 +#define I915_PARAM_HAS_GPU_RESET 35 typedef struct drm_i915_getparam { int param; -- cgit v1.2.3 From c44ef60e437019b8ca1dab8b4d2e8761fd4ce1e9 Mon Sep 17 00:00:00 2001 From: Mika Kuoppala Date: Thu, 25 Jun 2015 18:35:05 +0300 Subject: drm/i915/gtt: Allow >= 4GB sizes for vm. We can have exactly 4GB sized ppgtt with 32bit system. size_t is inadequate for this. v2: Convert a lot more places (Daniel) Signed-off-by: Mika Kuoppala Reviewed-by: Michel Thierry Signed-off-by: Daniel Vetter --- drivers/char/agp/intel-gtt.c | 4 ++-- drivers/gpu/drm/i915/i915_debugfs.c | 42 ++++++++++++++++++------------------- drivers/gpu/drm/i915/i915_gem.c | 6 +++--- drivers/gpu/drm/i915/i915_gem_gtt.c | 22 +++++++++---------- drivers/gpu/drm/i915/i915_gem_gtt.h | 12 +++++------ include/drm/intel-gtt.h | 4 ++-- 6 files changed, 45 insertions(+), 45 deletions(-) (limited to 'include') diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 0b4188b9af7c..4734d02ca899 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1408,8 +1408,8 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev, } EXPORT_SYMBOL(intel_gmch_probe); -void intel_gtt_get(size_t *gtt_total, size_t *stolen_size, - phys_addr_t *mappable_base, unsigned long *mappable_end) +void intel_gtt_get(u64 *gtt_total, size_t *stolen_size, + phys_addr_t *mappable_base, u64 *mappable_end) { *gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT; *stolen_size = intel_private.stolen_size; diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 495a6376cf39..bd0fbd6caac2 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -198,7 +198,7 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data) struct drm_i915_private *dev_priv = dev->dev_private; struct i915_address_space *vm = &dev_priv->gtt.base; struct i915_vma *vma; - size_t total_obj_size, total_gtt_size; + u64 total_obj_size, total_gtt_size; int count, ret; ret = mutex_lock_interruptible(&dev->struct_mutex); @@ -231,7 +231,7 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data) } mutex_unlock(&dev->struct_mutex); - seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n", + seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n", count, total_obj_size, total_gtt_size); return 0; } @@ -253,7 +253,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data) struct drm_device *dev = node->minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; - size_t total_obj_size, total_gtt_size; + u64 total_obj_size, total_gtt_size; LIST_HEAD(stolen); int count, ret; @@ -292,7 +292,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data) } mutex_unlock(&dev->struct_mutex); - seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n", + seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n", count, total_obj_size, total_gtt_size); return 0; } @@ -310,10 +310,10 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data) struct file_stats { struct drm_i915_file_private *file_priv; - int count; - size_t total, unbound; - size_t global, shared; - size_t active, inactive; + unsigned long count; + u64 total, unbound; + u64 global, shared; + u64 active, inactive; }; static int per_file_stats(int id, void *ptr, void *data) @@ -370,7 +370,7 @@ static int per_file_stats(int id, void *ptr, void *data) #define print_file_stats(m, name, stats) do { \ if (stats.count) \ - seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu global, %zu shared, %zu unbound)\n", \ + seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \ name, \ stats.count, \ stats.total, \ @@ -420,7 +420,7 @@ static int i915_gem_object_info(struct seq_file *m, void* data) struct drm_device *dev = node->minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 count, mappable_count, purgeable_count; - size_t size, mappable_size, purgeable_size; + u64 size, mappable_size, purgeable_size; struct drm_i915_gem_object *obj; struct i915_address_space *vm = &dev_priv->gtt.base; struct drm_file *file; @@ -437,17 +437,17 @@ static int i915_gem_object_info(struct seq_file *m, void* data) size = count = mappable_size = mappable_count = 0; count_objects(&dev_priv->mm.bound_list, global_list); - seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n", + seq_printf(m, "%u [%u] objects, %llu [%llu] bytes in gtt\n", count, mappable_count, size, mappable_size); size = count = mappable_size = mappable_count = 0; count_vmas(&vm->active_list, mm_list); - seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n", + seq_printf(m, " %u [%u] active objects, %llu [%llu] bytes\n", count, mappable_count, size, mappable_size); size = count = mappable_size = mappable_count = 0; count_vmas(&vm->inactive_list, mm_list); - seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n", + seq_printf(m, " %u [%u] inactive objects, %llu [%llu] bytes\n", count, mappable_count, size, mappable_size); size = count = purgeable_size = purgeable_count = 0; @@ -456,7 +456,7 @@ static int i915_gem_object_info(struct seq_file *m, void* data) if (obj->madv == I915_MADV_DONTNEED) purgeable_size += obj->base.size, ++purgeable_count; } - seq_printf(m, "%u unbound objects, %zu bytes\n", count, size); + seq_printf(m, "%u unbound objects, %llu bytes\n", count, size); size = count = mappable_size = mappable_count = 0; list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { @@ -473,16 +473,16 @@ static int i915_gem_object_info(struct seq_file *m, void* data) ++purgeable_count; } } - seq_printf(m, "%u purgeable objects, %zu bytes\n", + seq_printf(m, "%u purgeable objects, %llu bytes\n", purgeable_count, purgeable_size); - seq_printf(m, "%u pinned mappable objects, %zu bytes\n", + seq_printf(m, "%u pinned mappable objects, %llu bytes\n", mappable_count, mappable_size); - seq_printf(m, "%u fault mappable objects, %zu bytes\n", + seq_printf(m, "%u fault mappable objects, %llu bytes\n", count, size); - seq_printf(m, "%zu [%lu] gtt total\n", + seq_printf(m, "%llu [%llu] gtt total\n", dev_priv->gtt.base.total, - dev_priv->gtt.mappable_end - dev_priv->gtt.base.start); + (u64)dev_priv->gtt.mappable_end - dev_priv->gtt.base.start); seq_putc(m, '\n'); print_batch_pool_stats(m, dev_priv); @@ -519,7 +519,7 @@ static int i915_gem_gtt_info(struct seq_file *m, void *data) uintptr_t list = (uintptr_t) node->info_ent->data; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; - size_t total_obj_size, total_gtt_size; + u64 total_obj_size, total_gtt_size; int count, ret; ret = mutex_lock_interruptible(&dev->struct_mutex); @@ -541,7 +541,7 @@ static int i915_gem_gtt_info(struct seq_file *m, void *data) mutex_unlock(&dev->struct_mutex); - seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n", + seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n", count, total_obj_size, total_gtt_size); return 0; diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index f79ce9f22312..db1955fad005 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3712,9 +3712,9 @@ i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj, struct drm_device *dev = obj->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 size, fence_size, fence_alignment, unfenced_alignment; - unsigned long start = + u64 start = flags & PIN_OFFSET_BIAS ? flags & PIN_OFFSET_MASK : 0; - unsigned long end = + u64 end = flags & PIN_MAPPABLE ? dev_priv->gtt.mappable_end : vm->total; struct i915_vma *vma; int ret; @@ -3770,7 +3770,7 @@ i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj, * attempt to find space. */ if (size > end) { - DRM_DEBUG("Attempting to bind an object (view type=%u) larger than the aperture: size=%u > %s aperture=%lu\n", + DRM_DEBUG("Attempting to bind an object (view type=%u) larger than the aperture: size=%u > %s aperture=%llu\n", ggtt_view ? ggtt_view->type : 0, size, flags & PIN_MAPPABLE ? "mappable" : "total", diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 68705e381ada..7a7789e18f38 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2112,7 +2112,7 @@ static int i915_gem_setup_global_gtt(struct drm_device *dev, void i915_gem_init_global_gtt(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long gtt_size, mappable_size; + u64 gtt_size, mappable_size; gtt_size = dev_priv->gtt.base.total; mappable_size = dev_priv->gtt.mappable_end; @@ -2369,13 +2369,13 @@ static void chv_setup_private_ppat(struct drm_i915_private *dev_priv) } static int gen8_gmch_probe(struct drm_device *dev, - size_t *gtt_total, + u64 *gtt_total, size_t *stolen, phys_addr_t *mappable_base, - unsigned long *mappable_end) + u64 *mappable_end) { struct drm_i915_private *dev_priv = dev->dev_private; - unsigned int gtt_size; + u64 gtt_size; u16 snb_gmch_ctl; int ret; @@ -2417,10 +2417,10 @@ static int gen8_gmch_probe(struct drm_device *dev, } static int gen6_gmch_probe(struct drm_device *dev, - size_t *gtt_total, + u64 *gtt_total, size_t *stolen, phys_addr_t *mappable_base, - unsigned long *mappable_end) + u64 *mappable_end) { struct drm_i915_private *dev_priv = dev->dev_private; unsigned int gtt_size; @@ -2434,7 +2434,7 @@ static int gen6_gmch_probe(struct drm_device *dev, * a coarse sanity check. */ if ((*mappable_end < (64<<20) || (*mappable_end > (512<<20)))) { - DRM_ERROR("Unknown GMADR size (%lx)\n", + DRM_ERROR("Unknown GMADR size (%llx)\n", dev_priv->gtt.mappable_end); return -ENXIO; } @@ -2468,10 +2468,10 @@ static void gen6_gmch_remove(struct i915_address_space *vm) } static int i915_gmch_probe(struct drm_device *dev, - size_t *gtt_total, + u64 *gtt_total, size_t *stolen, phys_addr_t *mappable_base, - unsigned long *mappable_end) + u64 *mappable_end) { struct drm_i915_private *dev_priv = dev->dev_private; int ret; @@ -2536,9 +2536,9 @@ int i915_gem_gtt_init(struct drm_device *dev) gtt->base.dev = dev; /* GMADR is the PCI mmio aperture into the global GTT. */ - DRM_INFO("Memory usable by graphics device = %zdM\n", + DRM_INFO("Memory usable by graphics device = %lluM\n", gtt->base.total >> 20); - DRM_DEBUG_DRIVER("GMADR size = %ldM\n", gtt->mappable_end >> 20); + DRM_DEBUG_DRIVER("GMADR size = %lldM\n", gtt->mappable_end >> 20); DRM_DEBUG_DRIVER("GTT stolen size = %zdM\n", gtt->stolen_size >> 20); #ifdef CONFIG_INTEL_IOMMU if (intel_iommu_gfx_mapped) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index 017ea308f8b4..600eec00a1f4 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -235,8 +235,8 @@ struct i915_address_space { struct drm_mm mm; struct drm_device *dev; struct list_head global_link; - unsigned long start; /* Start offset always 0 for dri2 */ - size_t total; /* size addr space maps (ex. 2GB for ggtt) */ + u64 start; /* Start offset always 0 for dri2 */ + u64 total; /* size addr space maps (ex. 2GB for ggtt) */ struct { dma_addr_t addr; @@ -302,9 +302,9 @@ struct i915_address_space { */ struct i915_gtt { struct i915_address_space base; - size_t stolen_size; /* Total size of stolen memory */ - unsigned long mappable_end; /* End offset that we can CPU map */ + size_t stolen_size; /* Total size of stolen memory */ + u64 mappable_end; /* End offset that we can CPU map */ struct io_mapping *mappable; /* Mapping to our CPU mappable region */ phys_addr_t mappable_base; /* PA of our GMADR */ @@ -316,9 +316,9 @@ struct i915_gtt { int mtrr; /* global gtt ops */ - int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total, + int (*gtt_probe)(struct drm_device *dev, u64 *gtt_total, size_t *stolen, phys_addr_t *mappable_base, - unsigned long *mappable_end); + u64 *mappable_end); }; struct i915_hw_ppgtt { diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h index b08bdade6002..9e9bddaa58a5 100644 --- a/include/drm/intel-gtt.h +++ b/include/drm/intel-gtt.h @@ -3,8 +3,8 @@ #ifndef _DRM_INTEL_GTT_H #define _DRM_INTEL_GTT_H -void intel_gtt_get(size_t *gtt_total, size_t *stolen_size, - phys_addr_t *mappable_base, unsigned long *mappable_end); +void intel_gtt_get(u64 *gtt_total, size_t *stolen_size, + phys_addr_t *mappable_base, u64 *mappable_end); int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev, struct agp_bridge_data *bridge); -- cgit v1.2.3 From a9ed33ca075f712cc7fd96eb84e3d322012fcaaf Mon Sep 17 00:00:00 2001 From: Abdiel Janulgue Date: Wed, 1 Jul 2015 10:12:23 +0300 Subject: drm/i915: Expose I915_EXEC_RESOURCE_STREAMER flag and getparam Ensures that the batch buffer is executed by the resource streamer. And will let userspace know whether Resource Streamer is supported in the kernel. v2: Don't skip 1<<15 for the exec flags (Jani Nikula) v3: Use HAS_RESOURCE_STREAMER macro for execbuf validation (Chris Wilson) (from getparam patch) v2: Update I915_PARAM_HAS_RESOURCE_STREAMER so it's after I915_PARAM_HAS_GPU_RESET. v3: Only advertise RS support for hardware that supports it. v4: Add HAS_RESOURCE_STREAMER() macro (Chris) Testcase: igt/gem_exec_params Cc: Jani Nikula Cc: Kenneth Graunke Cc: Chris Wilson Reviewed-by: Chris Wilson Signed-off-by: Abdiel Janulgue [danvet: squash in getparam patch since it'd break bisect, suggested by Chris.] Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_dma.c | 3 +++ drivers/gpu/drm/i915/i915_drv.h | 3 +++ drivers/gpu/drm/i915/i915_gem_execbuffer.c | 14 ++++++++++++++ include/uapi/drm/i915_drm.h | 8 +++++++- 4 files changed, 27 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index c5349fa3fcce..a42f16592433 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -167,6 +167,9 @@ static int i915_getparam(struct drm_device *dev, void *data, value = i915.enable_hangcheck && intel_has_gpu_reset(dev); break; + case I915_PARAM_HAS_RESOURCE_STREAMER: + value = HAS_RESOURCE_STREAMER(dev); + break; default: DRM_DEBUG("Unknown parameter %d\n", param->param); return -EINVAL; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 950a9811a16f..63daf4cd2477 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2539,6 +2539,9 @@ struct drm_i915_cmd_table { #define HAS_CSR(dev) (IS_SKYLAKE(dev)) +#define HAS_RESOURCE_STREAMER(dev) (IS_HASWELL(dev) || \ + INTEL_INFO(dev)->gen >= 8) + #define INTEL_PCH_DEVICE_ID_MASK 0xff00 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00 #define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00 diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 600db7441847..83577c615962 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1490,6 +1490,20 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, return -EINVAL; } + if (args->flags & I915_EXEC_RESOURCE_STREAMER) { + if (!HAS_RESOURCE_STREAMER(dev)) { + DRM_DEBUG("RS is only allowed for Haswell, Gen8 and above\n"); + return -EINVAL; + } + if (ring->id != RCS) { + DRM_DEBUG("RS is not available on %s\n", + ring->name); + return -EINVAL; + } + + dispatch_flags |= I915_DISPATCH_RS; + } + intel_runtime_pm_get(dev_priv); ret = i915_mutex_lock_interruptible(dev); diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index f88cc1cac5d9..e7c29f1659ad 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -355,6 +355,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_SUBSLICE_TOTAL 33 #define I915_PARAM_EU_TOTAL 34 #define I915_PARAM_HAS_GPU_RESET 35 +#define I915_PARAM_HAS_RESOURCE_STREAMER 36 typedef struct drm_i915_getparam { int param; @@ -765,7 +766,12 @@ struct drm_i915_gem_execbuffer2 { #define I915_EXEC_BSD_RING1 (1<<13) #define I915_EXEC_BSD_RING2 (2<<13) -#define __I915_EXEC_UNKNOWN_FLAGS -(1<<15) +/** Tell the kernel that the batchbuffer is processed by + * the resource streamer. + */ +#define I915_EXEC_RESOURCE_STREAMER (1<<15) + +#define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_RESOURCE_STREAMER<<1) #define I915_EXEC_CONTEXT_ID_MASK (0xffffffff) #define i915_execbuffer2_set_context_id(eb2, context) \ -- cgit v1.2.3 From 346add7834557b5b9628b9bf2387106d42e631d4 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 14 Jul 2015 18:07:30 +0200 Subject: drm/i915: Use expcitly fixed type in compat32 structs I was confused shortly whether the compat was needed for the int, until I noticed the pointer in the original. Also remove typedef. v2: Review from Chris. - Add comments. - Also change the int param in the original structure. Cc: Chris Wilson Signed-off-by: Daniel Vetter Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_ioc32.c | 13 +++++++++---- include/uapi/drm/i915_drm.h | 6 +++++- 2 files changed, 14 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c index 6eec2221b44e..a5a2d5b3f44b 100644 --- a/drivers/gpu/drm/i915/i915_ioc32.c +++ b/drivers/gpu/drm/i915/i915_ioc32.c @@ -35,15 +35,20 @@ #include #include "i915_drv.h" -typedef struct drm_i915_getparam32 { - int param; +struct drm_i915_getparam32 { + s32 param; + /* + * We screwed up the generic ioctl struct here and used a variable-sized + * pointer. Use u32 in the compat struct to match the 32bit pointer + * userspace expects. + */ u32 value; -} drm_i915_getparam32_t; +}; static int compat_i915_getparam(struct file *file, unsigned int cmd, unsigned long arg) { - drm_i915_getparam32_t req32; + struct drm_i915_getparam32 req32; drm_i915_getparam_t __user *request; if (copy_from_user(&req32, (void __user *)arg, sizeof(req32))) diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index e7c29f1659ad..192027b4f031 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -358,7 +358,11 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_HAS_RESOURCE_STREAMER 36 typedef struct drm_i915_getparam { - int param; + s32 param; + /* + * WARNING: Using pointers instead of fixed-size u64 means we need to write + * compat32 code. Don't repeat this mistake. + */ int __user *value; } drm_i915_getparam_t; -- cgit v1.2.3