linux/drivers/gpu/drm/v3d/v3d_gem.c

// SPDX-License-Identifier: GPL-2.0+
/* Copyright (C) 2014-2018 Broadcom */

#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/sched/signal.h>
#include <linux/uaccess.h>

#include <drm/drm_managed.h>

#include "v3d_drv.h"
#include "v3d_regs.h"
#include "v3d_trace.h"

static void
v3d_init_core(struct v3d_dev *v3d, int core)
{ … }

/* Sets invariant state for the HW. */
static void
v3d_init_hw_state(struct v3d_dev *v3d)
{ … }

static void
v3d_idle_axi(struct v3d_dev *v3d, int core)
{ … }

static void
v3d_idle_gca(struct v3d_dev *v3d)
{ … }

static void
v3d_reset_by_bridge(struct v3d_dev *v3d)
{ … }

static void
v3d_reset_v3d(struct v3d_dev *v3d)
{ … }

void
v3d_reset(struct v3d_dev *v3d)
{ … }

static void
v3d_flush_l3(struct v3d_dev *v3d)
{ … }

/* Invalidates the (read-only) L2C cache.  This was the L2 cache for
 * uniforms and instructions on V3D 3.2.
 */
static void
v3d_invalidate_l2c(struct v3d_dev *v3d, int core)
{ … }

/* Invalidates texture L2 cachelines */
static void
v3d_flush_l2t(struct v3d_dev *v3d, int core)
{ … }

/* Cleans texture L1 and L2 cachelines (writing back dirty data).
 *
 * For cleaning, which happens from the CACHE_CLEAN queue after CSD has
 * executed, we need to make sure that the clean is done before
 * signaling job completion.  So, we synchronously wait before
 * returning, and we make sure that L2 invalidates don't happen in the
 * meantime to confuse our are-we-done checks.
 */
void
v3d_clean_caches(struct v3d_dev *v3d)
{ … }

/* Invalidates the slice caches.  These are read-only caches. */
static void
v3d_invalidate_slices(struct v3d_dev *v3d, int core)
{ … }

void
v3d_invalidate_caches(struct v3d_dev *v3d)
{ … }

int
v3d_gem_init(struct drm_device *dev)
{ … }

void
v3d_gem_destroy(struct drm_device *dev)
{ … }