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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
62384da2a0
Make i915->display pointer opaque to most of core i915 driver. Lots of places now need explicit include of intel_display_core.h, or a more specific header. With this dependency broken, changes in display should cause radically less recompilation of i915. Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Link: https://lore.kernel.org/r/b381b59acb7e4f600e0282935a68aedf77768109.1747907216.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#include <drm/drm_framebuffer.h>
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#include "gem/i915_gem_object.h"
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#include "i915_drv.h"
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#include "intel_display_core.h"
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#include "intel_display_types.h"
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#include "intel_fb.h"
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#include "intel_fb_bo.h"
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void intel_fb_bo_framebuffer_fini(struct drm_gem_object *obj)
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{
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/* Nothing to do for i915 */
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}
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int intel_fb_bo_framebuffer_init(struct drm_framebuffer *fb,
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struct drm_gem_object *_obj,
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struct drm_mode_fb_cmd2 *mode_cmd)
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{
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struct drm_i915_gem_object *obj = to_intel_bo(_obj);
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struct intel_display *display = to_intel_display(obj->base.dev);
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unsigned int tiling, stride;
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i915_gem_object_lock(obj, NULL);
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tiling = i915_gem_object_get_tiling(obj);
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stride = i915_gem_object_get_stride(obj);
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i915_gem_object_unlock(obj);
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if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
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/*
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* If there's a fence, enforce that
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* the fb modifier and tiling mode match.
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*/
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if (tiling != I915_TILING_NONE &&
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tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
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drm_dbg_kms(display->drm,
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"tiling_mode doesn't match fb modifier\n");
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return -EINVAL;
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}
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} else {
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if (tiling == I915_TILING_X) {
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mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED;
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} else if (tiling == I915_TILING_Y) {
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drm_dbg_kms(display->drm,
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"No Y tiling for legacy addfb\n");
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return -EINVAL;
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}
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}
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/*
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* gen2/3 display engine uses the fence if present,
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* so the tiling mode must match the fb modifier exactly.
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*/
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if (DISPLAY_VER(display) < 4 &&
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tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
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drm_dbg_kms(display->drm,
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"tiling_mode must match fb modifier exactly on gen2/3\n");
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return -EINVAL;
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}
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/*
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* If there's a fence, enforce that
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* the fb pitch and fence stride match.
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*/
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if (tiling != I915_TILING_NONE && mode_cmd->pitches[0] != stride) {
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drm_dbg_kms(display->drm,
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"pitch (%d) must match tiling stride (%d)\n",
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mode_cmd->pitches[0], stride);
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return -EINVAL;
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}
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return 0;
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}
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struct drm_gem_object *
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intel_fb_bo_lookup_valid_bo(struct drm_device *drm,
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struct drm_file *filp,
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const struct drm_mode_fb_cmd2 *mode_cmd)
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{
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struct drm_i915_private *i915 = to_i915(drm);
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struct drm_i915_gem_object *obj;
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obj = i915_gem_object_lookup(filp, mode_cmd->handles[0]);
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if (!obj)
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return ERR_PTR(-ENOENT);
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/* object is backed with LMEM for discrete */
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if (HAS_LMEM(i915) && !i915_gem_object_can_migrate(obj, INTEL_REGION_LMEM_0)) {
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/* object is "remote", not in local memory */
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i915_gem_object_put(obj);
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drm_dbg_kms(&i915->drm, "framebuffer must reside in local memory\n");
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return ERR_PTR(-EREMOTE);
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}
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return intel_bo_to_drm_bo(obj);
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}
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