ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/msm/msm_gem.h b/marvell/linux/drivers/gpu/drm/msm/msm_gem.h
new file mode 100644
index 0000000..9e0953c
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/msm/msm_gem.h
@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ */
+
+#ifndef __MSM_GEM_H__
+#define __MSM_GEM_H__
+
+#include <linux/kref.h>
+#include <linux/dma-resv.h>
+#include "msm_drv.h"
+
+/* Additional internal-use only BO flags: */
+#define MSM_BO_STOLEN 0x10000000 /* try to use stolen/splash memory */
+
+struct msm_gem_address_space {
+ const char *name;
+ /* NOTE: mm managed at the page level, size is in # of pages
+ * and position mm_node->start is in # of pages:
+ */
+ struct drm_mm mm;
+ spinlock_t lock; /* Protects drm_mm node allocation/removal */
+ struct msm_mmu *mmu;
+ struct kref kref;
+};
+
+struct msm_gem_vma {
+ struct drm_mm_node node;
+ uint64_t iova;
+ struct msm_gem_address_space *aspace;
+ struct list_head list; /* node in msm_gem_object::vmas */
+ bool mapped;
+ int inuse;
+};
+
+struct msm_gem_object {
+ struct drm_gem_object base;
+
+ uint32_t flags;
+
+ /**
+ * Advice: are the backing pages purgeable?
+ */
+ uint8_t madv;
+
+ /**
+ * count of active vmap'ing
+ */
+ uint8_t vmap_count;
+
+ /* And object is either:
+ * inactive - on priv->inactive_list
+ * active - on one one of the gpu's active_list.. well, at
+ * least for now we don't have (I don't think) hw sync between
+ * 2d and 3d one devices which have both, meaning we need to
+ * block on submit if a bo is already on other ring
+ *
+ */
+ struct list_head mm_list;
+ struct msm_gpu *gpu; /* non-null if active */
+
+ /* Transiently in the process of submit ioctl, objects associated
+ * with the submit are on submit->bo_list.. this only lasts for
+ * the duration of the ioctl, so one bo can never be on multiple
+ * submit lists.
+ */
+ struct list_head submit_entry;
+
+ struct page **pages;
+ struct sg_table *sgt;
+ void *vaddr;
+
+ struct list_head vmas; /* list of msm_gem_vma */
+
+ struct llist_node freed;
+
+ /* For physically contiguous buffers. Used when we don't have
+ * an IOMMU. Also used for stolen/splashscreen buffer.
+ */
+ struct drm_mm_node *vram_node;
+ struct mutex lock; /* Protects resources associated with bo */
+
+ char name[32]; /* Identifier to print for the debugfs files */
+};
+#define to_msm_bo(x) container_of(x, struct msm_gem_object, base)
+
+static inline bool is_active(struct msm_gem_object *msm_obj)
+{
+ return msm_obj->gpu != NULL;
+}
+
+static inline bool is_purgeable(struct msm_gem_object *msm_obj)
+{
+ WARN_ON(!mutex_is_locked(&msm_obj->base.dev->struct_mutex));
+ return (msm_obj->madv == MSM_MADV_DONTNEED) && msm_obj->sgt &&
+ !msm_obj->base.dma_buf && !msm_obj->base.import_attach;
+}
+
+static inline bool is_vunmapable(struct msm_gem_object *msm_obj)
+{
+ return (msm_obj->vmap_count == 0) && msm_obj->vaddr;
+}
+
+/* The shrinker can be triggered while we hold objA->lock, and need
+ * to grab objB->lock to purge it. Lockdep just sees these as a single
+ * class of lock, so we use subclasses to teach it the difference.
+ *
+ * OBJ_LOCK_NORMAL is implicit (ie. normal mutex_lock() call), and
+ * OBJ_LOCK_SHRINKER is used by shrinker.
+ *
+ * It is *essential* that we never go down paths that could trigger the
+ * shrinker for a purgable object. This is ensured by checking that
+ * msm_obj->madv == MSM_MADV_WILLNEED.
+ */
+enum msm_gem_lock {
+ OBJ_LOCK_NORMAL,
+ OBJ_LOCK_SHRINKER,
+};
+
+void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass);
+void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass);
+void msm_gem_free_work(struct work_struct *work);
+
+/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
+ * associated with the cmdstream submission for synchronization (and
+ * make it easier to unwind when things go wrong, etc). This only
+ * lasts for the duration of the submit-ioctl.
+ */
+struct msm_gem_submit {
+ struct drm_device *dev;
+ struct msm_gpu *gpu;
+ struct msm_gem_address_space *aspace;
+ struct list_head node; /* node in ring submit list */
+ struct list_head bo_list;
+ struct ww_acquire_ctx ticket;
+ uint32_t seqno; /* Sequence number of the submit on the ring */
+ struct dma_fence *fence;
+ struct msm_gpu_submitqueue *queue;
+ struct pid *pid; /* submitting process */
+ bool valid; /* true if no cmdstream patching needed */
+ bool in_rb; /* "sudo" mode, copy cmds into RB */
+ struct msm_ringbuffer *ring;
+ unsigned int nr_cmds;
+ unsigned int nr_bos;
+ u32 ident; /* A "identifier" for the submit for logging */
+ struct {
+ uint32_t type;
+ uint32_t size; /* in dwords */
+ uint64_t iova;
+ uint32_t idx; /* cmdstream buffer idx in bos[] */
+ } *cmd; /* array of size nr_cmds */
+ struct {
+ uint32_t flags;
+ union {
+ struct msm_gem_object *obj;
+ uint32_t handle;
+ };
+ uint64_t iova;
+ } bos[0];
+};
+
+#endif /* __MSM_GEM_H__ */