diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_create.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_create.c | 80 |
1 files changed, 72 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c index 9402d4bf4ffc..189ecdd0a9c1 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_create.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c @@ -3,12 +3,17 @@ * Copyright © 2020 Intel Corporation */ +#include <drm/drm_fourcc.h> +#include <drm/drm_print.h> + +#include "display/intel_display.h" #include "gem/i915_gem_ioctls.h" #include "gem/i915_gem_lmem.h" #include "gem/i915_gem_region.h" #include "pxp/intel_pxp.h" #include "i915_drv.h" +#include "i915_gem_create.h" #include "i915_trace.h" #include "i915_user_extensions.h" @@ -120,7 +125,7 @@ __i915_gem_object_create_user_ext(struct drm_i915_private *i915, u64 size, */ flags = I915_BO_ALLOC_USER; - ret = mr->ops->init_object(mr, obj, size, 0, flags); + ret = mr->ops->init_object(mr, obj, I915_BO_INVALID_OFFSET, size, 0, flags); if (ret) goto object_free; @@ -140,7 +145,8 @@ object_free: } /** - * Creates a new object using the same path as DRM_I915_GEM_CREATE_EXT + * __i915_gem_object_create_user - Creates a new object using the same path as + * DRM_I915_GEM_CREATE_EXT * @i915: i915 private * @size: size of the buffer, in bytes * @placements: possible placement regions, in priority order @@ -188,8 +194,8 @@ i915_gem_dumb_create(struct drm_file *file, args->pitch = ALIGN(args->width * cpp, 64); /* align stride to page size so that we can remap */ - if (args->pitch > intel_plane_fb_max_stride(to_i915(dev), format, - DRM_FORMAT_MOD_LINEAR)) + if (args->pitch > intel_dumb_fb_max_stride(dev, format, + DRM_FORMAT_MOD_LINEAR)) args->pitch = ALIGN(args->pitch, 4096); if (args->pitch < args->width) @@ -211,7 +217,7 @@ i915_gem_dumb_create(struct drm_file *file, } /** - * Creates a new mm object and returns a handle to it. + * i915_gem_create_ioctl - Creates a new mm object and returns a handle to it. * @dev: drm device pointer * @data: ioctl data blob * @file: drm file pointer @@ -238,7 +244,9 @@ struct create_ext { struct drm_i915_private *i915; struct intel_memory_region *placements[INTEL_REGION_UNKNOWN]; unsigned int n_placements; + unsigned int placement_mask; unsigned long flags; + unsigned int pat_index; }; static void repr_placements(char *buf, size_t size, @@ -334,6 +342,7 @@ static int set_placements(struct drm_i915_gem_create_ext_memory_regions *args, for (i = 0; i < args->num_regions; i++) ext_data->placements[i] = placements[i]; + ext_data->placement_mask = mask; return 0; out_dump: @@ -379,7 +388,7 @@ static int ext_set_protected(struct i915_user_extension __user *base, void *data if (ext.flags) return -EINVAL; - if (!intel_pxp_is_enabled(&to_gt(ext_data->i915)->pxp)) + if (!intel_pxp_is_enabled(ext_data->i915->pxp)) return -ENODEV; ext_data->flags |= I915_BO_PROTECTED; @@ -387,13 +396,45 @@ static int ext_set_protected(struct i915_user_extension __user *base, void *data return 0; } +static int ext_set_pat(struct i915_user_extension __user *base, void *data) +{ + struct create_ext *ext_data = data; + struct drm_i915_private *i915 = ext_data->i915; + struct drm_i915_gem_create_ext_set_pat ext; + unsigned int max_pat_index; + + BUILD_BUG_ON(sizeof(struct drm_i915_gem_create_ext_set_pat) != + offsetofend(struct drm_i915_gem_create_ext_set_pat, rsvd)); + + /* Limiting the extension only to Xe_LPG and beyond */ + if (GRAPHICS_VER_FULL(i915) < IP_VER(12, 70)) + return -ENODEV; + + if (copy_from_user(&ext, base, sizeof(ext))) + return -EFAULT; + + max_pat_index = INTEL_INFO(i915)->max_pat_index; + + if (ext.pat_index > max_pat_index) { + drm_dbg(&i915->drm, "PAT index is invalid: %u\n", + ext.pat_index); + return -EINVAL; + } + + ext_data->pat_index = ext.pat_index; + + return 0; +} + static const i915_user_extension_fn create_extensions[] = { [I915_GEM_CREATE_EXT_MEMORY_REGIONS] = ext_set_placements, [I915_GEM_CREATE_EXT_PROTECTED_CONTENT] = ext_set_protected, + [I915_GEM_CREATE_EXT_SET_PAT] = ext_set_pat, }; +#define PAT_INDEX_NOT_SET 0xffff /** - * Creates a new mm object and returns a handle to it. + * i915_gem_create_ext_ioctl - Creates a new mm object and returns a handle to it. * @dev: drm device pointer * @data: ioctl data blob * @file: drm file pointer @@ -408,9 +449,10 @@ i915_gem_create_ext_ioctl(struct drm_device *dev, void *data, struct drm_i915_gem_object *obj; int ret; - if (args->flags) + if (args->flags & ~I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS) return -EINVAL; + ext_data.pat_index = PAT_INDEX_NOT_SET; ret = i915_user_extensions(u64_to_user_ptr(args->extensions), create_extensions, ARRAY_SIZE(create_extensions), @@ -424,6 +466,22 @@ i915_gem_create_ext_ioctl(struct drm_device *dev, void *data, ext_data.n_placements = 1; } + if (args->flags & I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS) { + if (ext_data.n_placements == 1) + return -EINVAL; + + /* + * We always need to be able to spill to system memory, if we + * can't place in the mappable part of LMEM. + */ + if (!(ext_data.placement_mask & BIT(INTEL_REGION_SMEM))) + return -EINVAL; + } else { + if (ext_data.n_placements > 1 || + ext_data.placements[0]->type != INTEL_MEMORY_SYSTEM) + ext_data.flags |= I915_BO_ALLOC_GPU_ONLY; + } + obj = __i915_gem_object_create_user_ext(i915, args->size, ext_data.placements, ext_data.n_placements, @@ -431,5 +489,11 @@ i915_gem_create_ext_ioctl(struct drm_device *dev, void *data, if (IS_ERR(obj)) return PTR_ERR(obj); + if (ext_data.pat_index != PAT_INDEX_NOT_SET) { + i915_gem_object_set_pat_index(obj, ext_data.pat_index); + /* Mark pat_index is set by UMD */ + obj->pat_set_by_user = true; + } + return i915_gem_publish(obj, file, &args->size, &args->handle); } |