We are preparing for Xe driver. Backing object implementation is differing
between i915 and Xe. Split i915 specific code into separate source file
built only for i915.
v3: Fix failure handling in intel_framebuffer_init
v2: Couple of fixes to error value handling
Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/display/intel_fb.c | 68 ++--------------
drivers/gpu/drm/i915/display/intel_fb_bo.c | 93 ++++++++++++++++++++++
drivers/gpu/drm/i915/display/intel_fb_bo.h | 24 ++++++
4 files changed, 126 insertions(+), 60 deletions(-)
create mode 100644 drivers/gpu/drm/i915/display/intel_fb_bo.c
create mode 100644 drivers/gpu/drm/i915/display/intel_fb_bo.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 239da40a401f..bad4f61029d4 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -278,6 +278,7 @@ i915-y += \
display/intel_drrs.o \
display/intel_dsb.o \
display/intel_fb.o \
+ display/intel_fb_bo.o \
display/intel_fb_pin.o \
display/intel_fbc.o \
display/intel_fdi.o \
diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
index a235ec0f192d..6f6a09f5be56 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -15,6 +15,7 @@
#include "intel_display_types.h"
#include "intel_dpt.h"
#include "intel_fb.h"
+#include "intel_fb_bo.h"
#include "intel_frontbuffer.h"
#define check_array_bounds(i915, a, i) drm_WARN_ON(&(i915)->drm, (i) >= ARRAY_SIZE(a))
@@ -1978,7 +1979,6 @@ int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
struct drm_i915_private *dev_priv = to_i915(intel_bo_to_drm_bo(obj)->dev);
struct drm_framebuffer *fb = &intel_fb->base;
u32 max_stride;
- unsigned int tiling, stride;
int ret = -EINVAL;
int i;
@@ -1986,32 +1986,11 @@ int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
if (!intel_fb->frontbuffer)
return -ENOMEM;
- i915_gem_object_lock(obj, NULL);
- tiling = i915_gem_object_get_tiling(obj);
- stride = i915_gem_object_get_stride(obj);
- i915_gem_object_unlock(obj);
-
- if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
- /*
- * If there's a fence, enforce that
- * the fb modifier and tiling mode match.
- */
- if (tiling != I915_TILING_NONE &&
- tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
- drm_dbg_kms(&dev_priv->drm,
- "tiling_mode doesn't match fb modifier\n");
- goto err;
- }
- } else {
- if (tiling == I915_TILING_X) {
- mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED;
- } else if (tiling == I915_TILING_Y) {
- drm_dbg_kms(&dev_priv->drm,
- "No Y tiling for legacy addfb\n");
- goto err;
- }
- }
+ ret = intel_fb_bo_framebuffer_init(intel_fb, obj, mode_cmd);
+ if (ret)
+ goto err;
+ ret = -EINVAL;
if (!drm_any_plane_has_format(&dev_priv->drm,
mode_cmd->pixel_format,
mode_cmd->modifier[0])) {
@@ -2021,17 +2000,6 @@ int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
goto err;
}
- /*
- * gen2/3 display engine uses the fence if present,
- * so the tiling mode must match the fb modifier exactly.
- */
- if (DISPLAY_VER(dev_priv) < 4 &&
- tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
- drm_dbg_kms(&dev_priv->drm,
- "tiling_mode must match fb modifier exactly on gen2/3\n");
- goto err;
- }
-
max_stride = intel_fb_max_stride(dev_priv, mode_cmd->pixel_format,
mode_cmd->modifier[0]);
if (mode_cmd->pitches[0] > max_stride) {
@@ -2043,17 +2011,6 @@ int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
goto err;
}
- /*
- * If there's a fence, enforce that
- * the fb pitch and fence stride match.
- */
- if (tiling != I915_TILING_NONE && mode_cmd->pitches[0] != stride) {
- drm_dbg_kms(&dev_priv->drm,
- "pitch (%d) must match tiling stride (%d)\n",
- mode_cmd->pitches[0], stride);
- goto err;
- }
-
/* FIXME need to adjust LINOFF/TILEOFF accordingly. */
if (mode_cmd->offsets[0] != 0) {
drm_dbg_kms(&dev_priv->drm,
@@ -2137,21 +2094,12 @@ intel_user_framebuffer_create(struct drm_device *dev,
struct drm_framebuffer *fb;
struct drm_i915_gem_object *obj;
struct drm_mode_fb_cmd2 mode_cmd = *user_mode_cmd;
- struct drm_i915_private *i915;
+ struct drm_i915_private *i915 = to_i915(dev);
- obj = i915_gem_object_lookup(filp, mode_cmd.handles[0]);
- if (!obj)
+ obj = intel_fb_bo_lookup_valid_bo(i915, filp, user_mode_cmd);
+ if (IS_ERR(obj))
return ERR_PTR(-ENOENT);
- /* object is backed with LMEM for discrete */
- i915 = to_i915(obj->base.dev);
- if (HAS_LMEM(i915) && !i915_gem_object_can_migrate(obj, INTEL_REGION_LMEM_0)) {
- /* object is "remote", not in local memory */
- i915_gem_object_put(obj);
- drm_dbg_kms(&i915->drm, "framebuffer must reside in local memory\n");
- return ERR_PTR(-EREMOTE);
- }
-
fb = intel_framebuffer_create(obj, &mode_cmd);
drm_gem_object_put(intel_bo_to_drm_bo(obj));
diff --git a/drivers/gpu/drm/i915/display/intel_fb_bo.c b/drivers/gpu/drm/i915/display/intel_fb_bo.c
new file mode 100644
index 000000000000..581d9864e918
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_fb_bo.c
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_modeset_helper.h>
+
+#include "gem/i915_gem_object.h"
+
+#include "i915_drv.h"
+#include "intel_fb.h"
+#include "intel_fb_bo.h"
+
+int intel_fb_bo_framebuffer_init(struct intel_framebuffer *intel_fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ struct drm_i915_private *i915 = to_i915(obj->base.dev);
+ unsigned int tiling, stride;
+
+ i915_gem_object_lock(obj, NULL);
+ tiling = i915_gem_object_get_tiling(obj);
+ stride = i915_gem_object_get_stride(obj);
+ i915_gem_object_unlock(obj);
+
+ if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
+ /*
+ * If there's a fence, enforce that
+ * the fb modifier and tiling mode match.
+ */
+ if (tiling != I915_TILING_NONE &&
+ tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
+ drm_dbg_kms(&i915->drm,
+ "tiling_mode doesn't match fb modifier\n");
+ return -EINVAL;
+ }
+ } else {
+ if (tiling == I915_TILING_X) {
+ mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED;
+ } else if (tiling == I915_TILING_Y) {
+ drm_dbg_kms(&i915->drm,
+ "No Y tiling for legacy addfb\n");
+ return -EINVAL;
+ }
+ }
+
+ /*
+ * gen2/3 display engine uses the fence if present,
+ * so the tiling mode must match the fb modifier exactly.
+ */
+ if (DISPLAY_VER(i915) < 4 &&
+ tiling != intel_fb_modifier_to_tiling(mode_cmd->modifier[0])) {
+ drm_dbg_kms(&i915->drm,
+ "tiling_mode must match fb modifier exactly on gen2/3\n");
+ return -EINVAL;
+ }
+
+ /*
+ * If there's a fence, enforce that
+ * the fb pitch and fence stride match.
+ */
+ if (tiling != I915_TILING_NONE && mode_cmd->pitches[0] != stride) {
+ drm_dbg_kms(&i915->drm,
+ "pitch (%d) must match tiling stride (%d)\n",
+ mode_cmd->pitches[0], stride);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+struct drm_i915_gem_object *
+intel_fb_bo_lookup_valid_bo(struct drm_i915_private *i915,
+ struct drm_file *filp,
+ const struct drm_mode_fb_cmd2 *user_mode_cmd)
+{
+ struct drm_i915_gem_object *obj = i915_gem_object_lookup(filp, user_mode_cmd->handles[0]);
+
+ if (!obj)
+ return ERR_PTR(-ENOENT);
+
+ /* object is backed with LMEM for discrete */
+ i915 = to_i915(obj->base.dev);
+ if (HAS_LMEM(i915) && !i915_gem_object_can_migrate(obj, INTEL_REGION_LMEM_0)) {
+ /* object is "remote", not in local memory */
+ i915_gem_object_put(obj);
+ drm_dbg_kms(&i915->drm, "framebuffer must reside in local memory\n");
+ return ERR_PTR(-EREMOTE);
+ }
+
+ return obj;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_fb_bo.h b/drivers/gpu/drm/i915/display/intel_fb_bo.h
new file mode 100644
index 000000000000..dd06ceec8601
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_fb_bo.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef __INTEL_FB_BO_H__
+#define __INTEL_FB_BO_H__
+
+struct drm_file;
+struct drm_mode_fb_cmd2;
+struct drm_i915_gem_object;
+struct drm_i915_private;
+struct intel_framebuffer;
+
+int intel_fb_bo_framebuffer_init(struct intel_framebuffer *intel_fb,
+ struct drm_i915_gem_object *obj,
+ struct drm_mode_fb_cmd2 *mode_cmd);
+
+struct drm_i915_gem_object *
+intel_fb_bo_lookup_valid_bo(struct drm_i915_private *i915,
+ struct drm_file *filp,
+ const struct drm_mode_fb_cmd2 *user_mode_cmd);
+
+#endif
--
2.34.1
