[RFC PATCH v3 3/4] ipvr: user mode helper for ipvr drm driver
Cheng, Yao
yao.cheng at intel.com
Sun Nov 30 19:09:48 PST 2014
Add Jon/Bob/Raf for detail review.
> -----Original Message-----
> From: Cheng, Yao
> Sent: Saturday, November 22, 2014 3:09
> To: intel-gfx at lists.freedesktop.org; dri-devel at lists.freedesktop.org;
> daniel.vetter at ffwll.ch; Kelley, Sean V; Chehab, John
> Cc: Jiang, Fei; dh.herrmann at gmail.com; jani.nikula at linux.intel.com;
> emil.l.velikov at gmail.com; ville.syrjala at linux.intel.com;
> jbarnes at virtuousgeek.org; daniel at fooishbar.org; Cheng, Yao
> Subject: [RFC PATCH v3 3/4] ipvr: user mode helper for ipvr drm driver
>
> add usermode helper for the ipvr kernel driver.
> test_ioctl: test kernel driver by directly ioctl
>
> v2:
> take Emil's comments
> - correctly align ipvr_drm.h
>
> v3:
> take Daniel Vetter and Daniel Stone's comments, and implement PRIME
> - correctly align ipvr_drm.h
> - use __u32 family in ipvr_drm.h
> - rip out explicit fence from libdrm_ipvr
> - implemented PRIME support
> - add relocation fixup implementation
>
> Signed-off-by: Yao Cheng <yao.cheng at intel.com>
> ---
> Makefile.am | 6 +-
> Makefile.sources | 1 +
> configure.ac | 26 +-
> include/drm/ipvr_drm.h | 278 +++++++++++
> ipvr/Makefile.am | 57 +++
> ipvr/Makefile.sources | 5 +
> ipvr/ipvr_bufmgr.h | 149 ++++++
> ipvr/ipvr_bufmgr_gem.c | 1200
> ++++++++++++++++++++++++++++++++++++++++++++++++
> ipvr/libdrm_ipvr.pc.in | 11 +
> ipvr/test_ioctl.c | 423 +++++++++++++++++
> 10 files changed, 2154 insertions(+), 2 deletions(-)
> create mode 100644 include/drm/ipvr_drm.h
> create mode 100644 ipvr/Makefile.am
> create mode 100644 ipvr/Makefile.sources
> create mode 100644 ipvr/ipvr_bufmgr.h
> create mode 100644 ipvr/ipvr_bufmgr_gem.c
> create mode 100644 ipvr/libdrm_ipvr.pc.in
> create mode 100644 ipvr/test_ioctl.c
>
> diff --git a/Makefile.am b/Makefile.am
> index 3952a88..2227add 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -33,6 +33,10 @@ if HAVE_INTEL
> INTEL_SUBDIR = intel
> endif
>
> +if HAVE_IPVR
> +IPVR_SUBDIR = ipvr
> +endif
> +
> if HAVE_NOUVEAU
> NOUVEAU_SUBDIR = nouveau
> endif
> @@ -53,7 +57,7 @@ if HAVE_FREEDRENO
> FREEDRENO_SUBDIR = freedreno
> endif
>
> -SUBDIRS = . $(LIBKMS_SUBDIR) $(INTEL_SUBDIR) $(NOUVEAU_SUBDIR)
> $(RADEON_SUBDIR) $(OMAP_SUBDIR) $(EXYNOS_SUBDIR)
> $(FREEDRENO_SUBDIR) tests man
> +SUBDIRS = . $(LIBKMS_SUBDIR) $(INTEL_SUBDIR) $(IPVR_SUBDIR)
> $(NOUVEAU_SUBDIR) $(RADEON_SUBDIR) $(OMAP_SUBDIR)
> $(EXYNOS_SUBDIR) $(FREEDRENO_SUBDIR) tests man
>
> libdrm_la_LTLIBRARIES = libdrm.la
> libdrm_ladir = $(libdir)
> diff --git a/Makefile.sources b/Makefile.sources
> index d86fb2a..96f8c60 100644
> --- a/Makefile.sources
> +++ b/Makefile.sources
> @@ -18,6 +18,7 @@ LIBDRM_INCLUDE_H_FILES := \
> include/drm/drm_mode.h \
> include/drm/drm_sarea.h \
> include/drm/i915_drm.h \
> + include/drm/ipvr_drm.h \
> include/drm/mach64_drm.h \
> include/drm/mga_drm.h \
> include/drm/nouveau_drm.h \
> diff --git a/configure.ac b/configure.ac
> index ee59b03..6dcf1b2 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -68,6 +68,11 @@ AC_ARG_ENABLE(intel,
> [Enable support for intel's KMS API (default: auto)]),
> [INTEL=$enableval], [INTEL=auto])
>
> +AC_ARG_ENABLE(ipvr,
> + AS_HELP_STRING([--disable-ipvr],
> + [Enable support for baytrail's hardware VP8 decode (default:
> auto)]),
> + [IPVR=$enableval], [IPVR=auto])
> +
> AC_ARG_ENABLE(radeon,
> AS_HELP_STRING([--disable-radeon],
> [Enable support for radeon's KMS API (default: auto)]),
> @@ -204,7 +209,7 @@ if test "x$drm_cv_atomic_primitives" = "xlibatomic-
> ops"; then
> AC_DEFINE(HAVE_LIB_ATOMIC_OPS, 1, [Enable if you have
> libatomic-ops-dev installed])
> fi
>
> -if test "x$INTEL" != "xno" -o "x$RADEON" != "xno" -o "x$NOUVEAU" !=
> "xno"; then
> +if test "x$INTEL" != "xno" -o "x$IPVR" != "xno" -o "x$RADEON" != "xno" -o
> "x$NOUVEAU" != "xno"; then
> if test "x$drm_cv_atomic_primitives" = "xnone"; then
> if test "x$INTEL" != "xauto"; then
> if test "x$INTEL" != "xno"; then
> @@ -214,6 +219,14 @@ if test "x$INTEL" != "xno" -o "x$RADEON" != "xno" -o
> "x$NOUVEAU" != "xno"; then
> AC_MSG_WARN([Disabling libdrm_intel. It depends
> on atomic operations, which were not found for your compiler/cpu. Try
> compiling with -march=native, or install the libatomics-op-dev package.])
> INTEL=no
> fi
> + if test "x$IPVR" != "xauto"; then
> + if test "x$IPVR" != "xno"; then
> + AC_MSG_ERROR([libdrm_ipvr depends upon
> atomic operations, which were not found for your compiler/cpu. Try
> compiling with -march=native, or install the libatomics-op-dev package, or,
> failing both of those, disable support for Baytrail VP8 by passing --disable-ipvr
> to ./configure])
> + fi
> + else
> + AC_MSG_WARN([Disabling libdrm_ipvr. It depends
> on atomic operations, which were not found for your compiler/cpu. Try
> compiling with -march=native, or install the libatomics-op-dev package.])
> + INTEL=no
> + fi
> if test "x$RADEON" != "xauto"; then
> if test "x$RADEON" != "xno"; then
> AC_MSG_ERROR([libdrm_radeon depends
> upon atomic operations, which were not found for your compiler/cpu. Try
> compiling with -march=native, or install the libatomics-op-dev package, or,
> failing both of those, disable support for Radeon GPUs by passing --disable-
> radeon to ./configure])
> @@ -237,6 +250,9 @@ if test "x$INTEL" != "xno" -o "x$RADEON" != "xno" -o
> "x$NOUVEAU" != "xno"; then
> *) INTEL=no ;;
> esac
> fi
> + if test "x$IPVR" != "xno"; then
> + IPVR=yes
> + fi
> if test "x$RADEON" != "xno"; then
> RADEON=yes
> fi
> @@ -274,6 +290,11 @@ if test "x$INTEL" = xyes; then
> AC_DEFINE(HAVE_INTEL, 1, [Have intel support])
> fi
>
> +AM_CONDITIONAL(HAVE_IPVR, [test "x$IPVR" = xyes])
> +if test "x$IPVR" = xyes; then
> + AC_DEFINE(HAVE_PVR, 1, [Have ipvr support])
> +fi
> +
> AM_CONDITIONAL(HAVE_VMWGFX, [test "x$VMWGFX" = xyes])
> if test "x$VMWGFX" = xyes; then
> AC_DEFINE(HAVE_VMWGFX, 1, [Have vmwgfx kernel headers])
> @@ -393,6 +414,8 @@ AC_CONFIG_FILES([
> libkms/libkms.pc
> intel/Makefile
> intel/libdrm_intel.pc
> + ipvr/Makefile
> + ipvr/libdrm_ipvr.pc
> radeon/Makefile
> radeon/libdrm_radeon.pc
> nouveau/Makefile
> @@ -419,6 +442,7 @@ echo "$PACKAGE_STRING will be compiled with:"
> echo ""
> echo " libkms $LIBKMS"
> echo " Intel API $INTEL"
> +echo " Ipvr API $IPVR"
> echo " vmwgfx API $VMWGFX"
> echo " Radeon API $RADEON"
> echo " Nouveau API $NOUVEAU"
> diff --git a/include/drm/ipvr_drm.h b/include/drm/ipvr_drm.h
> new file mode 100644
> index 0000000..d1916fa
> --- /dev/null
> +++ b/include/drm/ipvr_drm.h
> @@ -0,0 +1,278 @@
> +/*********************************************************
> *****************
> + * ipvr_drm.h: IPVR header file exported to user space
> + *
> + * Copyright (c) 2014 Intel Corporation, Hillsboro, OR, USA
> + * All Rights Reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms and conditions of the GNU General Public License,
> + * version 2, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope it will be useful, but WITHOUT
> + * ANY WARRANTY; without even the implied warranty of
> MERCHANTABILITY or
> + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
> License for
> + * more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> with
> + * this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
> + *
> + * Authors:
> + * Fei Jiang <fei.jiang at intel.com>
> + * Yao Cheng <yao.cheng at intel.com>
> + *
> +
> **********************************************************
> ****************/
> +
> +
> +/* this file only define structs and macro which need export to user space
> */
> +#ifndef _IPVR_DRM_H_
> +#define _IPVR_DRM_H_
> +
> +#include <drm/drm.h>
> +struct drm_ipvr_context_create {
> + /* passed ctx_info, including codec, profile info */
> +#define IPVR_CONTEXT_TYPE_VED (0x1)
> + __u32 ctx_type;
> + /* returned back ctx_id */
> + __u32 ctx_id;
> + /*
> + * following tiling strides for VED are supported:
> + * stride 0: 512 for scheme 0, 1024 for scheme 1
> + * stride 1: 1024 for scheme 0, 2048 for scheme 1
> + * stride 2: 2048 for scheme 0, 4096 for scheme 1
> + * stride 3: 4096 for scheme 0
> + */
> + __u32 tiling_stride;
> + /*
> + * scheme 0: tile is 256x16, while minimal tile stride is 512
> + * scheme 1: tile is 512x8, while minimal tile stride is 1024
> + */
> + __u32 tiling_scheme;
> +};
> +
> +struct drm_ipvr_context_destroy {
> + __u32 ctx_id;
> + __u32 pad64;
> +};
> +
> +enum drm_ipvr_misc_key {
> + IPVR_DEVICE_INFO,
> + IPVR_UPDATE_TILING,
> + IPVR_SET_DISPLAYING_FRAME,
> + IPVR_GET_DISPLAYING_FRAME,
> + IPVR_QUERY_ENTRY
> +};
> +
> +/*
> + * different context maybe has different tiling stride,
> + * then tiling info need be bound with ctx
> + */
> +struct drm_ipvr_update_tiling {
> + __u32 ctx_id;
> + __u32 tiling_stride;
> + __u32 tiling_scheme;
> + __u32 pad64;
> +};
> +
> +/* Ioctl to set/get misc params:
> + */
> +struct drm_ipvr_misc {
> + __u64 key;
> + __u64 arg; /* argument pointer */
> + __u64 value; /* feed back pointer */
> +};
> +
> +struct drm_ipvr_gem_relocation_entry {
> + /**
> + * Handle of the buffer being pointed to by this relocation entry.
> + *
> + * It's appealing to make this be an index into the mm_validate_entry
> + * list to refer to the buffer, but this allows the driver to create
> + * a relocation list for state buffers and not re-write it per
> + * exec using the buffer.
> + */
> + __u32 target_handle;
> +
> + /**
> + * Value to be added to the offset of the target buffer to make up
> + * the relocation entry.
> + */
> + __u32 delta;
> +
> + /** Offset in the buffer the relocation entry will be written into */
> + __u64 offset;
> +
> + /**
> + * Offset value of the target buffer that the relocation entry was last
> + * written as.
> + *
> + * If the buffer has the same offset as last time, we can skip syncing
> + * and writing the relocation. This value is written back out by
> + * the execbuffer ioctl when the relocation is written.
> + */
> + __u64 presumed_offset;
> +
> + /**
> + * Target memory domains read by this operation.
> + */
> + __u32 read_domains;
> +
> + /**
> + * Target memory domains written by this operation.
> + *
> + * Note that only one domain may be written by the whole
> + * execbuffer operation, so that where there are conflicts,
> + * the application will get -EINVAL back.
> + */
> + __u32 write_domain;
> +};
> +
> +struct drm_ipvr_gem_exec_object {
> + /**
> + * User's handle for a buffer to be bound into the MMU for this
> + * operation.
> + */
> + __u32 handle;
> +
> + /** Number of relocations to be performed on this buffer */
> + __u32 relocation_count;
> + /**
> + * Pointer to array of struct drm_i915_gem_relocation_entry
> containing
> + * the relocations to be performed in this buffer.
> + */
> + __u64 relocs_ptr;
> +
> + /** Required alignment in graphics aperture */
> + __u64 alignment;
> +
> + /**
> + * Returned value of the updated offset of the object, for future
> + * presumed_offset writes.
> + */
> + __u64 offset;
> +
> +#define IPVR_EXEC_OBJECT_NEED_FENCE (1 << 0)
> +#define IPVR_EXEC_OBJECT_SUBMIT (1 << 1)
> + __u64 flags;
> +
> + __u64 rsvd1;
> + __u64 rsvd2;
> +};
> +
> +struct drm_ipvr_gem_execbuffer {
> + /**
> + * List of gem_exec_object2 structs
> + */
> + __u64 buffers_ptr;
> + __u32 buffer_count;
> +
> + /** Offset in the batchbuffer to start execution from. */
> + __u32 exec_start_offset;
> + /** Bytes used in batchbuffer from batch_start_offset */
> + __u32 exec_len;
> +
> + /**
> + * ID of hardware context.
> + */
> + __u32 ctx_id;
> +
> + __u64 flags;
> + __u64 rsvd1;
> + __u64 rsvd2;
> +};
> +
> +enum ipvr_cache_level
> +{
> + IPVR_CACHE_NOACCESS,
> + IPVR_CACHE_UNCACHED,
> + IPVR_CACHE_WRITEBACK,
> + IPVR_CACHE_WRITECOMBINE,
> + IPVR_CACHE_MAX,
> +};
> +
> +struct drm_ipvr_gem_create {
> + /*
> + * Requested size for the object.
> + * The (page-aligned) allocated size for the object will be returned.
> + */
> + __u64 size;
> + __u64 rounded_size;
> + __u64 mmu_offset;
> + /*
> + * Returned handle for the object.
> + * Object handles are nonzero.
> + */
> + __u32 handle;
> + __u32 tiling;
> +
> + __u32 cache_level;
> + __u32 pad64;
> + /*
> + * Handle used for user to mmap BO
> + */
> + __u64 map_offset;
> +};
> +
> +struct drm_ipvr_gem_busy {
> + /* Handle of the buffer to check for busy */
> + __u32 handle;
> +
> + /*
> + * Return busy status (1 if busy, 0 if idle).
> + * The high word is used to indicate on which rings the object
> + * currently resides:
> + * 16:31 - busy (r or r/w) rings (16 render, 17 bsd, 18 blt, etc)
> + */
> + __u32 busy;
> +};
> +
> +struct drm_ipvr_gem_mmap_offset {
> + /** Handle for the object being mapped. */
> + __u32 handle;
> + __u32 pad64;
> + /**
> + * Fake offset to use for subsequent mmap call
> + *
> + * This is a fixed-size type for 32/64 compatibility.
> + */
> + __u64 offset;
> +};
> +
> +struct drm_ipvr_gem_wait {
> + /* Handle of BO we shall wait on */
> + __u32 handle;
> + __u32 flags;
> + /** Number of nanoseconds to wait, Returns time remaining. */
> + __s64 timeout_ns;
> +};
> +
> +/*
> + * IPVR GEM specific ioctls
> + */
> +#define DRM_IPVR_CONTEXT_CREATE 0x00
> +#define DRM_IPVR_CONTEXT_DESTROY 0x01
> +#define DRM_IPVR_MISC 0x02
> +#define DRM_IPVR_GEM_EXECBUFFER 0x03
> +#define DRM_IPVR_GEM_BUSY 0x04
> +#define DRM_IPVR_GEM_CREATE 0x05
> +#define DRM_IPVR_GEM_WAIT 0x06
> +#define DRM_IPVR_GEM_MMAP_OFFSET 0x07
> +
> +#define DRM_IOCTL_IPVR_CONTEXT_CREATE \
> + DRM_IOWR(DRM_COMMAND_BASE +
> DRM_IPVR_CONTEXT_CREATE, struct drm_ipvr_context_create)
> +#define DRM_IOCTL_IPVR_CONTEXT_DESTROY \
> + DRM_IOW(DRM_COMMAND_BASE +
> DRM_IPVR_CONTEXT_DESTROY, struct drm_ipvr_context_destroy)
> +#define DRM_IOCTL_IPVR_MISC \
> + DRM_IOWR(DRM_COMMAND_BASE + DRM_IPVR_MISC, struct
> drm_ipvr_misc)
> +#define DRM_IOCTL_IPVR_GEM_EXECBUFFER \
> + DRM_IOWR(DRM_COMMAND_BASE +
> DRM_IPVR_GEM_EXECBUFFER, struct drm_ipvr_gem_execbuffer)
> +#define DRM_IOCTL_IPVR_GEM_BUSY \
> + DRM_IOWR(DRM_COMMAND_BASE + DRM_IPVR_GEM_BUSY,
> struct drm_ipvr_gem_busy)
> +#define DRM_IOCTL_IPVR_GEM_CREATE \
> + DRM_IOWR(DRM_COMMAND_BASE + DRM_IPVR_GEM_CREATE,
> struct drm_ipvr_gem_create)
> +#define DRM_IOCTL_IPVR_GEM_WAIT \
> + DRM_IOWR(DRM_COMMAND_BASE + DRM_IPVR_GEM_WAIT,
> struct drm_ipvr_gem_wait)
> +#define DRM_IOCTL_IPVR_GEM_MMAP_OFFSET \
> + DRM_IOWR(DRM_COMMAND_BASE +
> DRM_IPVR_GEM_MMAP_OFFSET, struct drm_ipvr_gem_mmap_offset)
> +
> +#endif
> diff --git a/ipvr/Makefile.am b/ipvr/Makefile.am
> new file mode 100644
> index 0000000..60cbb36
> --- /dev/null
> +++ b/ipvr/Makefile.am
> @@ -0,0 +1,57 @@
> +# Copyright © 2014 Intel Corporation
> +#
> +# Permission is hereby granted, free of charge, to any person obtaining a
> +# copy of this software and associated documentation files (the "Software"),
> +# to deal in the Software without restriction, including without limitation
> +# the rights to use, copy, modify, merge, publish, distribute, sublicense,
> +# and/or sell copies of the Software, and to permit persons to whom the
> +# Software is furnished to do so, subject to the following conditions:
> +#
> +# The above copyright notice and this permission notice (including the next
> +# paragraph) shall be included in all copies or substantial portions of the
> +# Software.
> +#
> +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> EXPRESS OR
> +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> MERCHANTABILITY,
> +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
> EVENT SHALL
> +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
> DAMAGES OR OTHER
> +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> ARISING
> +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> OTHER DEALINGS
> +# IN THE SOFTWARE.
> +#
> +# Authors:
> +# Yao Cheng <yao.cheng at intel.com>
> +
> +include Makefile.sources
> +
> +AM_CFLAGS = \
> + $(WARN_CFLAGS) \
> + $(VISIBILITY_CFLAGS) \
> + -I$(top_srcdir) \
> + -I$(top_srcdir)/ipvr \
> + $(PTHREADSTUBS_CFLAGS) \
> + $(PCIACCESS_CFLAGS) \
> + $(VALGRIND_CFLAGS) \
> + -I$(top_srcdir)/include/drm
> +
> +libdrm_ipvr_la_LTLIBRARIES = libdrm_ipvr.la
> +libdrm_ipvr_ladir = $(libdir)
> +libdrm_ipvr_la_LDFLAGS = -version-number 0:1:0 -no-undefined
> +libdrm_ipvr_la_LIBADD = ../libdrm.la \
> + @PTHREADSTUBS_LIBS@ \
> + @PCIACCESS_LIBS@ \
> + @CLOCK_LIB@
> +
> +libdrm_ipvr_la_SOURCES = $(LIBDRM_IPVR_FILES)
> +
> +ipvr_bufmgr_gem_o_CFLAGS = $(AM_CFLAGS) -c99
> +
> +libdrm_ipvrincludedir = ${includedir}/libdrm
> +libdrm_ipvrinclude_HEADERS = $(LIBDRM_IPVR_H_FILES)
> +
> +# This may be interesting even outside of "make check", due to the -dump
> option.
> +noinst_PROGRAMS = test_ioctl
> +
> +test_ioctl_LDADD = libdrm_ipvr.la ../libdrm.la ../intel/libdrm_intel.la
> +
> +pkgconfig_DATA = libdrm_ipvr.pc
> diff --git a/ipvr/Makefile.sources b/ipvr/Makefile.sources
> new file mode 100644
> index 0000000..5103a02
> --- /dev/null
> +++ b/ipvr/Makefile.sources
> @@ -0,0 +1,5 @@
> +LIBDRM_IPVR_FILES := \
> + ipvr_bufmgr_gem.c
> +
> +LIBDRM_IPVR_H_FILES := \
> + ipvr_bufmgr.h
> diff --git a/ipvr/ipvr_bufmgr.h b/ipvr/ipvr_bufmgr.h
> new file mode 100644
> index 0000000..31df82f
> --- /dev/null
> +++ b/ipvr/ipvr_bufmgr.h
> @@ -0,0 +1,149 @@
> +/*
> + * Copyright 2014 Intel Corporation
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
> "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice (including the next
> + * paragraph) shall be included in all copies or substantial portions of the
> + * Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
> EVENT SHALL
> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
> DAMAGES OR OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> ARISING
> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> OTHER DEALINGS
> + * IN THE SOFTWARE.
> + *
> + * Authors:
> + * Yao Cheng <yao.cheng at intel.com>
> + *
> + */
> +#ifndef IPVR_BUFMGR_H
> +#define IPVR_BUFMGR_H
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdio.h>
> +
> +typedef struct _drm_ipvr_bo drm_ipvr_bo;
> +typedef struct _drm_ipvr_bufmgr drm_ipvr_bufmgr;
> +typedef struct _drm_ipvr_context drm_ipvr_context;
> +
> +struct _drm_ipvr_bo {
> + /**
> + * Size in bytes of the buffer object.
> + *
> + * The size may be larger than the size originally requested for the
> + * allocation, such as being aligned to page size.
> + */
> + size_t size;
> +
> + /** rounded up size of actual allocation */
> + size_t alloc_size;
> +
> + /** GEM handle of the BO */
> + uint32_t handle;
> +
> + /**
> + * several buffers may share one BO (camera/RAR), and use offset to
> distinguish it
> + */
> + uint64_t buffer_ofs;
> +
> + /**
> + * Last seen card virtual address (offset from the beginning of the
> + * aperture) for the object. This should be used to fill relocation
> + * entries when calling drm_ipvr_gem_bo_emit_reloc()
> + */
> + uint64_t offset;
> +
> + /**
> + * Virtual address for accessing the buffer data. Only valid while
> + * mapped.
> + */
> + void *virt;
> +
> + /**
> + * Generic external buffer info e.g. gfx handle on Android
> + */
> + uint64_t ext_handle;
> +
> + /** Indicates the BO can be re-used or not after being recycled */
> + int reusable;
> +
> + /** Buffer manager context associated with this buffer object */
> + drm_ipvr_bufmgr *bufmgr;
> +};
> +
> +struct _drm_ipvr_bufmgr {
> + int debug;
> +};
> +
> +struct _drm_ipvr_context
> +{
> + uint32_t ctx_id;
> + uint32_t ctx_type;
> + drm_ipvr_bufmgr *bufmgr;
> +};
> +
> +drm_ipvr_bufmgr *
> +drm_ipvr_gem_bufmgr_init(int fd, int batch_size);
> +
> +void drm_ipvr_gem_bufmgr_destroy(drm_ipvr_bufmgr *bufmgr);
> +
> +int drm_ipvr_gem_bufmgr_get_device_info(drm_ipvr_bufmgr *bufmgr,
> uint16_t *dev_id, uint16_t *caps);
> +
> +/*void drm_ipvr_gem_bufmgr_trace_all_bos(drm_ipvr_bufmgr
> *bufmgr);*/
> +
> +
> +drm_ipvr_bo *
> +drm_ipvr_gem_bo_alloc(drm_ipvr_bufmgr *bufmgr, drm_ipvr_context
> *ctx,
> + const char *name, size_t size,
> + uint8_t tiling, uint8_t cache_level, uint8_t reusable);
> +
> +void drm_ipvr_gem_bo_reference(drm_ipvr_bo *bo);
> +
> +void drm_ipvr_gem_bo_unreference(drm_ipvr_bo *bo);
> +
> +int drm_ipvr_gem_bo_map(drm_ipvr_bo *bo, unsigned long offset, size_t
> size, int write_enable);
> +
> +int drm_ipvr_gem_bo_unmap(drm_ipvr_bo *bo);
> +
> +void drm_ipvr_gem_bo_wait(drm_ipvr_bo *bo);
> +
> +int drm_ipvr_gem_bo_emit_reloc(drm_ipvr_bo *bo, unsigned long offset,
> + drm_ipvr_bo *target_bo, unsigned long target_offset, uint32_t
> skip_fence);
> +
> +int drm_ipvr_gem_bo_exec(drm_ipvr_bo *bo, unsigned long offset, size_t
> len,
> + int fence_in, int *fence_out);
> +
> +drm_ipvr_bo *
> +drm_ipvr_gem_bo_create_from_name(drm_ipvr_bufmgr *bufmgr,
> drm_ipvr_context *ctx,
> + const char *name, uint32_t handle);
> +
> +int drm_ipvr_gem_bo_flink(drm_ipvr_bo *bo, uint32_t * name);
> +
> +int drm_ipvr_gem_bo_export_to_prime(drm_ipvr_bo *bo, int *prime_fd);
> +
> +drm_ipvr_bo *drm_ipvr_gem_bo_create_from_prime(drm_ipvr_bufmgr
> *bufmgr,
> + int prime_fd, int size);
> +
> +int drm_ipvr_gem_bo_busy(drm_ipvr_bo *bo);
> +
> +int drm_ipvr_gem_bo_references(drm_ipvr_bo *bo, drm_ipvr_bo
> *target_bo);
> +
> +void drm_ipvr_gem_bo_remove_relocs(drm_ipvr_bo *bo, uint8_t
> recursive);
> +
> +/*int drm_ipvr_gem_bo_get_MB_error(drm_ipvr_bo *bo);*/
> +
> +drm_ipvr_context *
> +drm_ipvr_gem_context_create(drm_ipvr_bufmgr *bufmgr, uint32_t
> ctx_type, uint32_t tiling_stride, uint32_t tiling_mode);
> +
> +void
> +drm_ipvr_gem_context_destroy(drm_ipvr_context *ctx);
> +
> +#endif
> diff --git a/ipvr/ipvr_bufmgr_gem.c b/ipvr/ipvr_bufmgr_gem.c
> new file mode 100644
> index 0000000..1f6e7c5
> --- /dev/null
> +++ b/ipvr/ipvr_bufmgr_gem.c
> @@ -0,0 +1,1200 @@
> +/*********************************************************
> *****************
> + *
> + * Copyright 2014 Intel Corporation
> + * All Rights Reserved.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
> + * "Software"), to deal in the Software without restriction, including
> + * without limitation the rights to use, copy, modify, merge, publish,
> + * distribute, sub license, and/or sell copies of the Software, and to
> + * permit persons to whom the Software is furnished to do so, subject to
> + * the following conditions:
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO
> EVENT SHALL
> + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE
> FOR ANY CLAIM,
> + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
> TORT OR
> + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
> SOFTWARE OR THE
> + * USE OR OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * The above copyright notice and this permission notice (including the
> + * next paragraph) shall be included in all copies or substantial portions
> + * of the Software.
> + *
> + *
> +
> **********************************************************
> ****************/
> +/*
> + * Authors: Yao Cheng <yao.cheng at intel.com>
> + *
> + */
> +
> +#include <assert.h>
> +#ifdef HAVE_CONFIG_H
> +#include "config.h"
> +#endif
> +#include <xf86drm.h>
> +#include <xf86atomic.h>
> +#include <fcntl.h>
> +#include <inttypes.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <assert.h>
> +#include <pthread.h>
> +#include <sys/ioctl.h>
> +#include <sys/mman.h>
> +#include <sys/stat.h>
> +#include <sys/types.h>
> +#include <stdbool.h>
> +#include <sys/time.h>
> +#include "errno.h"
> +#include "libdrm.h"
> +#include "libdrm_lists.h"
> +#include "ipvr_bufmgr.h"
> +#include "string.h"
> +#include "ipvr_drm.h"
> +#ifdef ANDROID
> +#include <utils/Timers.h>
> +#endif
> +
> +static int debug_level = 3;
> +
> +typedef uint64_t nsecs_t;
> +#define VERB(fmt, ...) _DBGPRINT(0, fmt, ##__VA_ARGS__)
> +#define DBG(fmt, ...) _DBGPRINT(1, fmt, ##__VA_ARGS__)
> +#define INFO(fmt, ...) _DBGPRINT(2, fmt, ##__VA_ARGS__)
> +#define WARN(fmt, ...) _DBGPRINT(3, fmt, ##__VA_ARGS__)
> +#define ERR(fmt, ...) _DBGPRINT(4, fmt, ##__VA_ARGS__)
> +#define _DBGPRINT(level, fmt, ...) \
> + do { \
> + if (debug_level <= level) { \
> + fprintf(stderr, fmt, ##__VA_ARGS__); \
> + } \
> + } while (false);
> +
> +#define MAX_SELECT_TIMEOUT (10 * 1000) // 10 msec for 1MB BO
> +#define COUNT_BEFORE_SELECT (5)
> +
> +#define IPVR_TIMEOUT_USEC 990000LL
> +
> +typedef struct _drm_ipvr_bo_gem drm_ipvr_bo_gem;
> +
> +typedef struct _drm_ipvr_reloc_target_info {
> + drm_ipvr_bo *bo;
> + uint64_t flags;
> +} drm_ipvr_reloc_target;
> +
> +struct drm_ipvr_cache_bucket {
> + unsigned long size;
> + drmMMListHead head;
> + size_t count;
> + size_t limit;
> +};
> +
> +typedef struct _drm_ipvr_bufmgr_gem
> +{
> + drm_ipvr_bufmgr base;
> + int fd;
> + pthread_mutex_t lock;
> + pthread_mutex_t list_lock;
> +
> + struct drm_ipvr_gem_exec_object *exec_objs;
> + drm_ipvr_bo **exec_bos;
> + int exec_size;
> + int exec_count;
> + time_t time;
> + int max_relocs;
> +
> + /* cache bucket of power-of-two */
> + int cache_bucket_size;
> +
> + /* only cache linear BOs */
> + struct drm_ipvr_cache_bucket *cache_buckets;
> +
> + /* seqno used to check BO's last operation oldness */
> + int exec_seq;
> +} drm_ipvr_bufmgr_gem;
> +
> +typedef struct _drm_ipvr_bo_gem
> +{
> + drm_ipvr_bo base;
> + const char *name;
> + /**
> + * Kenel-assigned global name for this object
> + */
> + unsigned int global_name;
> + atomic_t refcount;
> + uint32_t tiling;
> + uint32_t caching;
> + unsigned long stride;
> + atomic_t mapcount;
> + struct drm_ipvr_gem_relocation_entry *relocs;
> + /*
> + * Handle for mmap
> + */
> + uint64_t map_offset;
> + /**
> + * Array of info structs corresponding to relocs[i].target_handle etc
> + */
> + drm_ipvr_reloc_target *reloc_target_info;
> + /** Number of entries in relocs */
> + int reloc_count;
> + /**
> + * Index of the buffer within the validation list while preparing a
> + * batchbuffer execution.
> + */
> + int validate_index;
> + /**
> + * Boolean of whether this buffer has been used as a relocation
> + * target and had its size accounted for, and thus can't have any
> + * further relocations added to it.
> + */
> + bool used_as_reloc_target;
> + /*bool is_vmap;*/
> + bool is_prime_imported;
> + /*void *user_virt;*/
> +
> + /** BO cache list */
> + drmMMListHead cache_head;
> +
> + drm_ipvr_context *ctx;
> + int exec_seq;
> +} drm_ipvr_bo_gem;
> +
> +static nsecs_t get_time_ns(void)
> +{
> +#ifdef ANDROID
> + return systemTime(SYSTEM_TIME_MONOTONIC);
> +#else
> + struct timeval tv;
> + gettimeofday(&tv, NULL);
> + return tv.tv_sec * 1000000000LL + tv.tv_usec * 1000LL;
> +#endif
> +}
> +
> +static struct drm_ipvr_cache_bucket *
> +drm__ipvr_cache_bucket_for_size(drm_ipvr_bufmgr *bufmgr,
> + size_t size, uint8_t tiling)
> +{
> + int i;
> + drm_ipvr_bufmgr_gem *bufmgr_gem =
> (drm_ipvr_bufmgr_gem*)bufmgr;
> +
> + assert(tiling == 0);
> + for (i = 0; i < bufmgr_gem->cache_bucket_size; i++) {
> + struct drm_ipvr_cache_bucket *bucket =
> + &bufmgr_gem->cache_buckets[i];
> + if (bucket->size >= size) {
> + return bucket;
> + }
> + }
> + return NULL;
> +}
> +
> +static int
> +drm__ipvr_gem_bo_free(drm_ipvr_bo *bo)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem*) bo-
> >bufmgr;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *) bo;
> + struct drm_gem_close arg;
> + int ret;
> + bool fence_destroyed = false;
> +
> + /* Close this object */
> + arg.handle = bo->handle;
> +
> + ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_GEM_CLOSE, &arg);
> + if (ret != 0) {
> + ERR("%s: DRM_IOCTL_GEM_CLOSE \"%s\" handle 0x%x offset 0x%lx
> failed: %s\n",
> + __FUNCTION__, bo_gem->name,
> + bo->handle, bo->offset, strerror(errno));
> + }
> +
> + if (bo_gem->relocs)
> + free(bo_gem->relocs);
> + if (bo_gem->reloc_target_info)
> + free(bo_gem->reloc_target_info);
> +
> + DBG("%s: freed buf khandle \"%s\" hnd %x, offset 0x%lx, %s\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset,
> + (fence_destroyed? "fence is destroyed": "no fence to destroy"));
> +
> + memset(bo_gem, 0, sizeof(*bo_gem));
> + free(bo_gem);
> + return 0;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_map(drm_ipvr_bo *bo, unsigned long offset, size_t
> size, int write_enable);
> +drm_public int
> +drm_ipvr_gem_bo_unmap(drm_ipvr_bo *bo);
> +
> +drm_public drm_ipvr_bo *
> +drm_ipvr_gem_bo_alloc(drm_ipvr_bufmgr *bufmgr, drm_ipvr_context
> *ctx,
> + const char *name, size_t size,
> + uint8_t tiling, uint8_t cache_level, uint8_t reusable)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem*)
> bufmgr;
> + drm_ipvr_bo_gem *allocated_bo_gem = NULL;
> + int ret;
> + struct drm_ipvr_gem_create arg;
> + bool alloc_from_cache = false;
> + size_t alloc_size = size;
> + struct drm_ipvr_cache_bucket *bucket = NULL;
> + int bo_movings = 0;
> + int bucket_free_before, bucket_free_after;
> + nsecs_t begin_ns, end_ns;
> + nsecs_t time_wait, time_bo_moving, time_fence_destroy,
> time_kernel_alloc;
> + nsecs_t now;
> + time_wait = time_bo_moving = time_fence_destroy = time_kernel_alloc
> = 0;
> + bucket_free_before = bucket_free_after = 0;
> +
> + begin_ns = get_time_ns();
> + if (reusable)
> + bucket = drm__ipvr_cache_bucket_for_size(&bufmgr_gem->base, size,
> tiling);
> +
> + if (reusable && !bucket) {
> + reusable = false;
> + WARN("%s size %zu cannot fit into any cache bucket, set as non-
> reusable\n",
> + __FUNCTION__, size);
> + }
> + if (reusable && bucket) {
> + /**
> + * only expand size when it's reusable
> + */
> + alloc_size = bucket->size;
> + }
> +
> + if (reusable && bucket && !DRMLISTEMPTY(&bucket->head)) {
> + VERB("%s searching cached BOs in fast mode: free_list\n",
> __FUNCTION__);
> + now = get_time_ns();
> + pthread_mutex_lock(&bufmgr_gem->list_lock);
> + allocated_bo_gem = DRMLISTENTRY(drm_ipvr_bo_gem,
> + bucket->head.next, cache_head);
> + if (bufmgr_gem->exec_seq - allocated_bo_gem->exec_seq < 5) {
> + alloc_from_cache = false;
> + allocated_bo_gem = NULL;
> + }
> + else if (!drm_ipvr_gem_bo_busy(&allocated_bo_gem->base)) {
> + alloc_from_cache = true;
> + DRMLISTDELINIT(&allocated_bo_gem->cache_head);
> + bucket->count--;
> + }
> + else {
> + drm_ipvr_gem_bo_wait(&allocated_bo_gem->base);
> + alloc_from_cache = true;
> + DRMLISTDELINIT(&allocated_bo_gem->cache_head);
> + bucket->count--;
> + }
> + pthread_mutex_unlock(&bufmgr_gem->list_lock);
> + time_wait += get_time_ns() - now;
> + VERB("%s got free BO from cache\n", __FUNCTION__);
> + }
> + else {
> + VERB("%s empty free_list, alloc_from kernel\n", __FUNCTION__);
> + alloc_from_cache = false;
> + }
> +
> + if (!alloc_from_cache) {
> + allocated_bo_gem = calloc(1, sizeof(*allocated_bo_gem));
> + if (!allocated_bo_gem) {
> + ERR("%s: calloc failed: %s\n", __FUNCTION__, strerror(errno));
> + return NULL;
> + }
> +
> + if (reusable)
> + arg.size = alloc_size;
> + else
> + arg.size = size;
> + arg.tiling = tiling;
> + arg.cache_level = cache_level;
> +
> + now = get_time_ns();
> + ret = drmCommandWriteRead(bufmgr_gem->fd,
> + DRM_IPVR_GEM_CREATE,
> + &arg, sizeof(arg));
> +
> + if (ret != 0) {
> + ERR("%s: IOCTL GEM_CREATE failed: %d\n",
> + __FUNCTION__, ret);
> + free(allocated_bo_gem);
> + allocated_bo_gem = NULL;
> + return NULL;
> + }
> + time_kernel_alloc = get_time_ns() - now;
> +
> + allocated_bo_gem->base.bufmgr = bufmgr;
> + allocated_bo_gem->base.handle = arg.handle;
> + allocated_bo_gem->tiling = arg.tiling;
> + allocated_bo_gem->caching = arg.cache_level;
> + allocated_bo_gem->stride = 0; /* FIXME: does ipvr_drv_video maintain
> stride/sliceHeight itself? */
> + allocated_bo_gem->base.offset = arg.mmu_offset;
> + allocated_bo_gem->base.alloc_size = arg.rounded_size;
> + allocated_bo_gem->base.size = size;
> + allocated_bo_gem->name = name;
> + allocated_bo_gem->base.virt = NULL;
> + allocated_bo_gem->map_offset = arg.map_offset;
> + allocated_bo_gem->is_prime_imported = false;
> + atomic_set(&allocated_bo_gem->mapcount, 0);
> +
> + DBG("%s: allocated buf handle 0x%x from kernel, "
> + "offset 0x%lx, name \"%s\" size %lu (%lu), tiling %u, cache_level %u,
> bufmgr %p\n",
> + __FUNCTION__,
> + allocated_bo_gem->base.handle, allocated_bo_gem->base.offset,
> allocated_bo_gem->name,
> + allocated_bo_gem->base.size, allocated_bo_gem->base.alloc_size,
> allocated_bo_gem->tiling, allocated_bo_gem->caching, bufmgr);
> + }
> + else {
> + assert(allocated_bo_gem);
> + DBG("%s: allocated buf handle 0x%x from userspace cache, "
> + "offset 0x%lx, name \"%s\" size %lu (%lu), tiling %u, cache_level %u,
> bufmgr %p\n",
> + __FUNCTION__,
> + allocated_bo_gem->base.handle, allocated_bo_gem->base.offset,
> allocated_bo_gem->name,
> + allocated_bo_gem->base.size, allocated_bo_gem->base.alloc_size,
> allocated_bo_gem->tiling, allocated_bo_gem->caching, bufmgr);
> + }
> +
> + allocated_bo_gem->name = name;
> + allocated_bo_gem->base.size = size;
> + allocated_bo_gem->validate_index = -1;
> + allocated_bo_gem->ctx = ctx;
> + allocated_bo_gem->base.reusable = reusable;
> + allocated_bo_gem->exec_seq = -1;
> +
> + atomic_set(&allocated_bo_gem->refcount, 1);
> + end_ns = get_time_ns();
> + if (bucket) {
> + bucket_free_after = bucket->count;
> + }
> + assert(atomic_read(&allocated_bo_gem->mapcount) == 0);
> +
> + if (end_ns - begin_ns > 2 * 1000 * 1000) {
> + DBG("%s got from %s: \"%s\" hnd %u offset 0x%lx size %lu took %.2f
> ms, "
> + "(wait %.2f, "
> + "bo_moving %.2f, kernel_alloc %.2f), "
> + "bucket (%d/%zu)=>(%d/%zu)\n",
> + __FUNCTION__, (alloc_from_cache? "CACHE": "KERNEL"),
> + allocated_bo_gem->name, allocated_bo_gem->base.handle,
> allocated_bo_gem->base.offset,
> + allocated_bo_gem->base.alloc_size, (end_ns - begin_ns)/1000000.0,
> + time_wait/1000000.0,
> + bo_movings/1000000.0, time_kernel_alloc/1000000.0,
> + bucket_free_before, (bucket? bucket->limit: 0),
> + bucket_free_after, (bucket? bucket->limit: 0));
> + }
> + return &allocated_bo_gem->base;
> +}
> +
> +drm_public void drm_ipvr_gem_bo_unreference(drm_ipvr_bo *bo);
> +
> +static void
> +drm__ipvr_gem_bo_remove_relocs(drm_ipvr_bo *bo, int depth, bool
> recursive)
> +{
> + int i;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem*)bo;
> + drm_ipvr_bo_gem *target_bo_gem;
> + for (i = 0; i < bo_gem->reloc_count; i++) {
> + if (bo_gem->reloc_target_info[i].bo != bo) {
> + target_bo_gem = (drm_ipvr_bo_gem*)bo_gem-
> >reloc_target_info[i].bo;
> + VERB("%s (depth: %d) remove \"%s\" hnd %x off 0x%lx => \"%s\"
> hnd %x off 0x%lx\n",
> + __FUNCTION__, depth, bo_gem->name, bo_gem->base.handle,
> bo->offset,
> + target_bo_gem->name, target_bo_gem->base.handle,
> target_bo_gem->base.offset);
> + if (recursive)
> + drm__ipvr_gem_bo_remove_relocs(bo_gem-
> >reloc_target_info[i].bo, depth + 1, true);
> + drm_ipvr_gem_bo_unreference(bo_gem->reloc_target_info[i].bo);
> + }
> + bo_gem->reloc_target_info[i].bo = NULL;
> + memset(&bo_gem->relocs[i], 0, sizeof(bo_gem->relocs[i]));
> + }
> + bo_gem->reloc_count = 0;
> +}
> +
> +
> +drm_public void
> +drm_ipvr_gem_bo_remove_relocs(drm_ipvr_bo *bo, uint8_t recursive)
> +{
> + drm__ipvr_gem_bo_remove_relocs(bo, 0, recursive);
> +}
> +
> +drm_public void
> +drm_ipvr_gem_bo_reference(drm_ipvr_bo *bo)
> +{
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *)bo;
> + atomic_inc(&bo_gem->refcount);
> + VERB("%s \"%s\" hnd 0x%x offset 0x%lx, refcount became %d\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset,
> atomic_read(&bo_gem->refcount));
> +}
> +
> +static void
> +drm__ipvr_gem_bo_finalize(drm_ipvr_bo *bo)
> +{
> + struct drm_ipvr_cache_bucket *bucket;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem*)bo;
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem*)bo-
> >bufmgr;
> + int mapcount;
> + /* add lock? */
> + /* Automatically unreference all the target buffers */
> + drm_ipvr_gem_bo_remove_relocs(bo, false);
> + mapcount = atomic_read(&bo_gem->mapcount);
> + if (mapcount != 0)
> + WARN("%s BO is finalized with mapcount %d\n", __FUNCTION__,
> mapcount);
> +
> + assert(atomic_read(&bo_gem->mapcount) == 0);
> +
> + bo_gem->validate_index = -1;
> +
> + bucket = drm__ipvr_cache_bucket_for_size(bo->bufmgr, bo->size,
> bo_gem->tiling);
> +
> + /* Put the buffer into our internal cache for reuse if we can. */
> + if (bo->reusable && bucket != NULL) {
> + bo_gem->validate_index = -1;
> + DBG("%s adding bo \"%s\" hnd %x (offset 0x%lx) to internal cache\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset);
> +
> + pthread_mutex_lock(&bufmgr_gem->list_lock);
> + DRMLISTADDTAIL(&bo_gem->cache_head, &bucket->head);
> + bucket->count++;
> +
> + pthread_mutex_unlock(&bufmgr_gem->list_lock);
> + } else {
> + VERB("%s freeing bo \"%s\" hnd %x (offset 0x%lx)\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset);
> + drm__ipvr_gem_bo_free(bo);
> + }
> +}
> +
> +drm_public void
> +drm_ipvr_gem_bo_unreference(drm_ipvr_bo *bo)
> +{
> + drm_ipvr_bo_gem * bo_gem = (drm_ipvr_bo_gem*)bo;
> + assert(atomic_read(&bo_gem->refcount) > 0);
> + if (atomic_dec_and_test(&bo_gem->refcount)) {
> + drm__ipvr_gem_bo_finalize(bo);
> + } else {
> + VERB("%s \"%s\" handle 0x%x offset 0x%lx, refcount became %d\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset,
> atomic_read(&bo_gem->refcount));
> + }
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_map(drm_ipvr_bo *bo, unsigned long offset,
> + size_t size, int write_enable)
> +{
> + int ret;
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem *)bo-
> >bufmgr;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem*)bo;
> + struct drm_ipvr_gem_mmap_offset arg;
> +
> + assert(atomic_read(&bo_gem->mapcount) >= 0);
> + /* maintain userspace mapping cache, to avoid unnecessary IOCTLs */
> + if (atomic_read(&bo_gem->mapcount) == 0 && !bo->virt) {
> + /* no need to call synccpu-grab, kernel do it automatically */
> + VERB("Calling GEM_MMAP with handle %u offset 0x%"PRIx64",
> size %"PRIu64"\n",
> + bo->handle, offset, bo->size);
> +
> + if (!bo_gem->map_offset) {
> + memset(&arg, 0, sizeof(arg));
> + arg.handle = bo->handle;
> + ret = drmCommandWriteRead(bufmgr_gem->fd,
> DRM_IPVR_GEM_MMAP_OFFSET,
> + &arg, sizeof(arg));
> + if (ret < 0) {
> + ERR("%s: failed to get mmap offset at bo \"%s\" 0x%x: %d (%s)\n",
> + __FUNCTION__, bo_gem->name, bo->handle, ret, strerror(ret));
> + return ret;
> + }
> + }
> + bo->virt = drm_mmap(0, bo->alloc_size, PROT_READ | PROT_WRITE,
> + MAP_SHARED, bufmgr_gem->fd, bo_gem->map_offset);
> + if (bo->virt == MAP_FAILED) {
> + bo->virt = NULL;
> + return -errno;
> + }
> +
> + VERB("%s: map for first time, \"%s\" hnd 0x%x (offset 0x%lx) (%s) -
> > %p\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset, bo_gem-
> >name, bo->virt);
> + }
> + else {
> + VERB("%s: already mapped, \"%s\" hnd 0x%x (offset 0x%lx) (%s) -
> > %p\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset, bo_gem-
> >name, bo->virt);
> + }
> + atomic_inc(&bo_gem->mapcount);
> + assert(bo->virt);
> + VERB("%s: map_count became %d\n",
> + __FUNCTION__, atomic_read(&bo_gem->mapcount));
> +
> + return 0;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_unmap(drm_ipvr_bo *bo)
> +{
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem*)bo;
> + int mapcount;
> +
> + mapcount = atomic_read(&bo_gem->mapcount);
> + if (mapcount <= 0) {
> + VERB("%s: unexpected unmap() when mapcount is %d, ignore it\n",
> __FUNCTION__, mapcount);
> + }
> + else if (atomic_dec_and_test(&bo_gem->mapcount)) {
> + if (bo->virt)
> + drm_munmap(bo->virt, bo->size);
> + bo->virt = NULL;
> + }
> + VERB("%s: \"%s\" hnd 0x%x offset 0x%lx map_count became %d\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset,
> atomic_read(&bo_gem->mapcount));
> + return 0;
> +}
> +
> +drm_public void
> +drm_ipvr_gem_bo_wait(drm_ipvr_bo *bo)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem*) bo-
> >bufmgr;
> + drm_ipvr_bo_gem * bo_gem = (drm_ipvr_bo_gem*)bo;
> + struct drm_ipvr_gem_wait arg;
> + int ret;
> + VERB("%s: wait \"%s\" hnd 0x%x offset 0x%lx\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset);
> +
> + arg.handle = bo->handle;
> + arg.flags = 0;
> + ret = drmCommandWriteRead(bufmgr_gem->fd, DRM_IPVR_GEM_WAIT,
> &arg, sizeof(arg));
> + if (ret < 0) {
> + ERR("%s \"%s\" hnd %u offset 0x%lx failed, %d (%s)\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset, ret,
> strerror(ret));
> + }
> +}
> +
> +static unsigned
> +drm__ipvr_time_diff(struct timeval *now, struct timeval *then)
> +{
> + long long val;
> +
> + val = now->tv_sec - then->tv_sec;
> + val *= 1000000LL;
> + val += now->tv_usec;
> + val -= then->tv_usec;
> + if (val < 1LL)
> + val = 1LL;
> +
> + return (unsigned) val;
> +}
> +
> +static int
> +drm__ipvr_setup_reloc_list(drm_ipvr_bo *bo)
> +{
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *) bo;
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem *) bo-
> >bufmgr;
> + unsigned int max_relocs = bufmgr_gem->max_relocs;
> +
> + if (bo->size / 4 < max_relocs)
> + max_relocs = bo->size / 4;
> +
> + bo_gem->relocs = malloc(max_relocs *
> + sizeof(struct drm_ipvr_gem_relocation_entry));
> + bo_gem->reloc_target_info = malloc(max_relocs *
> + sizeof(drm_ipvr_reloc_target));
> + if (bo_gem->relocs == NULL || bo_gem->reloc_target_info == NULL) {
> + ERR("%s: failed to alloc relocs and reloc_target_info\n",
> __FUNCTION__);
> + free (bo_gem->relocs);
> + bo_gem->relocs = NULL;
> +
> + free (bo_gem->reloc_target_info);
> + bo_gem->reloc_target_info = NULL;
> +
> + return 1;
> + }
> +
> + return 0;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_emit_reloc(drm_ipvr_bo *bo, unsigned long offset,
> + drm_ipvr_bo *target_bo, unsigned long target_offset, uint32_t
> skip_fence)
> +{
> + int ret;
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem *) bo-
> >bufmgr;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *) bo;
> + drm_ipvr_bo_gem *target_bo_gem = (drm_ipvr_bo_gem *) target_bo;
> + VERB("%s::%d\n", __func__, __LINE__);
> + /* Create a new relocation list if needed */
> + if (bo_gem->relocs == NULL) {
> + ret = drm__ipvr_setup_reloc_list(bo);
> + if (ret) {
> + ERR("%s failed: relocs = %p, setup_reloc_list returns %d (%s)\n",
> + __FUNCTION__, bo_gem->relocs, ret, strerror(ret));
> + return -ENOMEM;
> + }
> + }
> +
> + /* Check overflow */
> + assert(bo_gem->reloc_count < bufmgr_gem->max_relocs);
> +
> + /* Check args */
> + assert(offset <= bo->size - 4);
> +
> + /* Make sure that we're not adding a reloc to something whose size has
> + * already been accounted for.
> + */
> + if (target_bo_gem != bo_gem) {
> + /* todo: check it */
> + }
> + /* An object needing a fence is a tiled buffer, so it won't have
> + * relocs to other buffers.
> + */
> + bo_gem->relocs[bo_gem->reloc_count].offset = offset;
> + bo_gem->relocs[bo_gem->reloc_count].delta = target_offset;
> + bo_gem->relocs[bo_gem->reloc_count].target_handle =
> + target_bo_gem->base.handle;
> + bo_gem->relocs[bo_gem->reloc_count].presumed_offset = target_bo-
> >offset;
> + bo_gem->reloc_target_info[bo_gem->reloc_count].bo = target_bo;
> +
> + if (target_bo != bo)
> + drm_ipvr_gem_bo_reference(target_bo);
> + bo_gem->reloc_target_info[bo_gem->reloc_count].flags = skip_fence?
> + 0: IPVR_EXEC_OBJECT_NEED_FENCE;
> +
> + bo_gem->reloc_count++;
> +
> + VERB("%s emitted reloc: \"%s\" hnd %x (0x%lx) => \"%s\" hnd %x (0x%lx
> = 0x%lx+0x%lx)\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset,
> + target_bo_gem->name, target_bo->handle,
> + target_bo->offset + target_offset, target_bo->offset, target_offset);
> + return 0;
> +}
> +
> +drm_public drm_ipvr_bo *
> +drm_ipvr_gem_bo_create_from_name(drm_ipvr_bufmgr *bufmgr,
> drm_ipvr_context *ctx,
> + const char *name, uint32_t handle)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem *)
> bufmgr;
> + drm_ipvr_bo_gem *bo_gem;
> + int ret;
> + struct drm_gem_open open_arg;
> +
> + open_arg.name = handle;
> + ret = drmIoctl(bufmgr_gem->fd,
> + DRM_IOCTL_GEM_OPEN,
> + &open_arg);
> + if (ret) {
> + ERR("Couldn't reference %s handle 0x%08x: %s\n",
> + name, handle, strerror(errno));
> + return NULL;
> + }
> + bo_gem = calloc(1, sizeof(*bo_gem));
> + if (!bo_gem)
> + return NULL;
> +
> + bo_gem->base.size = open_arg.size;
> + bo_gem->base.offset = 0;
> + bo_gem->base.bufmgr = bufmgr;
> + bo_gem->name = name;
> + atomic_set(&bo_gem->refcount, 1);
> + atomic_set(&bo_gem->mapcount, 0);
> + bo_gem->validate_index = -1;
> + bo_gem->base.handle = open_arg.handle;
> + bo_gem->global_name = handle;
> + bo_gem->base.reusable = false;
> + DBG("bo_create_from_handle: %d (%s)\n", handle, bo_gem->name);
> +
> + return &bo_gem->base;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_flink(drm_ipvr_bo *bo, uint32_t * name)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem *) bo-
> >bufmgr;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *) bo;
> + int ret;
> + struct drm_gem_flink flink;
> + if (!bo_gem->global_name) {
> + flink.handle = bo_gem->base.handle;
> +
> + ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_GEM_FLINK, &flink);
> + if (ret != 0)
> + return -errno;
> +
> + bo_gem->global_name = flink.name;
> + bo_gem->base.reusable = false;
> + }
> +
> + *name = bo_gem->global_name;
> + return 0;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_export_to_prime(drm_ipvr_bo *bo, int *prime_fd)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem *) bo-
> >bufmgr;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *) bo;
> + int ret;
> + ret = drmPrimeHandleToFD(bufmgr_gem->fd, bo_gem->base.handle,
> + DRM_CLOEXEC, prime_fd);
> + if (ret) {
> + ERR("%s: failed calling drmPrimeHandleToFD: %d (%s)\n",
> + __FUNCTION__, ret, strerror(ret))
> + return ret;
> + }
> +
> + bo_gem->base.reusable = false;
> +
> + return 0;
> +}
> +
> +drm_public drm_ipvr_bo*
> +drm_ipvr_gem_bo_create_from_prime(drm_ipvr_bufmgr *bufmgr,
> + int prime_fd, int size)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem *)
> bufmgr;
> + int ret;
> + uint32_t handle;
> + drm_ipvr_bo_gem *bo_gem;
> +
> + ret = drmPrimeFDToHandle(bufmgr_gem->fd, prime_fd, &handle);
> + if (ret) {
> + ERR("%s: failed calling drmPrimeFDToHandle: %d (%s)\n",
> + __FUNCTION__, ret, strerror(ret))
> + return NULL;
> + }
> +
> + /*
> + * See if the kernel has already returned this buffer to us. Just as
> + * for named buffers, we must not create two bo's pointing at the same
> + * kernel object
> + */
> + pthread_mutex_lock(&bufmgr_gem->lock);
> +
> + bo_gem = calloc(1, sizeof(*bo_gem));
> + if (!bo_gem) {
> + pthread_mutex_unlock(&bufmgr_gem->lock);
> + return NULL;
> + }
> + /* Determine size of bo. The fd-to-handle ioctl really should
> + * return the size, but it doesn't. If we have kernel 3.12 or
> + * later, we can lseek on the prime fd to get the size. Older
> + * kernels will just fail, in which case we fall back to the
> + * provided (estimated or guess size). */
> + ret = lseek(prime_fd, 0, SEEK_END);
> + if (ret != -1) {
> + bo_gem->base.size = ret;
> + bo_gem->base.alloc_size = ret;
> + }
> + else {
> + bo_gem->base.size = size;
> + bo_gem->base.alloc_size = size;
> + }
> +
> + bo_gem->base.bufmgr = bufmgr;
> + bo_gem->base.handle = handle;
> + bo_gem->tiling = 0;
> + bo_gem->caching = 0;
> + bo_gem->stride = 0; /* FIXME: does ipvr_drv_video maintain
> stride/sliceHeight itself? */
> + bo_gem->name = "prime";
> + bo_gem->base.virt = NULL;
> + bo_gem->map_offset = 0;
> + atomic_set(&bo_gem->mapcount, 0);
> + atomic_set(&bo_gem->refcount, 1);
> + bo_gem->validate_index = -1;
> + bo_gem->ctx = NULL;
> + bo_gem->base.reusable = false;
> + bo_gem->exec_seq = -1;
> + bo_gem->is_prime_imported = true;
> +
> + pthread_mutex_unlock(&bufmgr_gem->lock);
> +
> + return &bo_gem->base;
> +}
> +
> +static int
> +drm__ipvr_add_validate_buffer(drm_ipvr_bo *bo, uint64_t flags)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = NULL;
> + drm_ipvr_bo_gem *bo_gem = NULL;
> + int index;
> +
> + if (!bo) {
> + ERR("%s, invalid bo %p\n", __FUNCTION__, bo);
> + return -EINVAL;
> + }
> + bo_gem = (drm_ipvr_bo_gem *) bo;
> + if (!(bo->bufmgr)) {
> + ERR("%s, invalid bo bufmgr %p for bo \"%s\" hnd %x (off 0x%lx)\n",
> + __FUNCTION__, bo->bufmgr, bo_gem->name, bo->handle, bo-
> >offset);
> + return -EINVAL;
> + }
> +
> + bufmgr_gem = (drm_ipvr_bufmgr_gem *)bo->bufmgr;
> +
> + if (bo_gem->validate_index != -1) {
> + if (!(bufmgr_gem->exec_objs[bo_gem->validate_index].flags &
> IPVR_EXEC_OBJECT_NEED_FENCE)
> + && (flags & IPVR_EXEC_OBJECT_NEED_FENCE)) {
> + VERB("%s: already has validate_index %d, update flags: 0x%llx-
> >0x%llx\n",
> + __FUNCTION__, bo_gem->validate_index,
> + bufmgr_gem->exec_objs[bo_gem->validate_index].flags,
> + IPVR_EXEC_OBJECT_NEED_FENCE | bufmgr_gem-
> >exec_objs[bo_gem->validate_index].flags);
> + bufmgr_gem->exec_objs[bo_gem->validate_index].flags |=
> IPVR_EXEC_OBJECT_NEED_FENCE;
> + }
> + return 0;
> + }
> +
> + /* Extend the array of validation entries as necessary. */
> + if (bufmgr_gem->exec_count == bufmgr_gem->exec_size) {
> + int new_size = bufmgr_gem->exec_size * 2;
> +
> + if (new_size == 0)
> + new_size = 10;
> +
> + bufmgr_gem->exec_objs =
> + realloc(bufmgr_gem->exec_objs,
> + sizeof(*bufmgr_gem->exec_objs) * new_size);
> + bufmgr_gem->exec_bos =
> + realloc(bufmgr_gem->exec_bos,
> + sizeof(*bufmgr_gem->exec_bos) * new_size);
> + bufmgr_gem->exec_size = new_size;
> + }
> +
> + if (!bufmgr_gem->exec_objs || !bufmgr_gem->exec_bos) {
> + ERR("%s val_args = %p and exec_bos = %p\n",
> + __FUNCTION__, bufmgr_gem->exec_objs, bufmgr_gem->exec_bos);
> + return -ENOMEM;
> + }
> +
> + index = bufmgr_gem->exec_count;
> + bo_gem->validate_index = index;
> + /* Fill in array entry */
> + if (bufmgr_gem->exec_objs && bufmgr_gem->exec_bos) {
> + bufmgr_gem->exec_objs[index].offset = bo->offset;
> + bufmgr_gem->exec_objs[index].handle = bo_gem->base.handle;
> + bufmgr_gem->exec_objs[index].flags = flags;
> + bufmgr_gem->exec_objs[index].relocs_ptr = (uintptr_t)bo_gem-
> >relocs;
> + bufmgr_gem->exec_objs[index].relocation_count = bo_gem-
> >reloc_count;
> + bufmgr_gem->exec_bos[index] = bo;
> +
> + VERB("%s added validate buffer \"%s\" hnd %x (off 0x%lx) at [%d]\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset, index);
> + bufmgr_gem->exec_count++;
> + }
> + return 0;
> +}
> +
> +static int
> +drm__ipvr_bo_process_reloc(drm_ipvr_bo *bo, uint64_t flags)
> +{
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *)bo;
> + int i;
> + int ret = 0;
> +
> + /* Add the target to the validate list */
> + ret = drm__ipvr_add_validate_buffer(bo, flags);
> + if (ret != 0)
> + return ret;
> +
> + if (bo_gem->relocs == NULL)
> + return 0;
> +
> + for (i = 0; i < bo_gem->reloc_count; i++) {
> + drm_ipvr_bo *target_bo = bo_gem->reloc_target_info[i].bo;
> + uint64_t target_flags = bo_gem->reloc_target_info[i].flags;
> + if (target_bo == bo)
> + continue;
> +
> + /* Continue walking the tree depth-first. */
> + ret = drm__ipvr_bo_process_reloc(target_bo, target_flags);
> + if (ret != 0)
> + return ret;
> + }
> +
> + return ret;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_exec(drm_ipvr_bo *bo, unsigned long offset, size_t len,
> + int fence_in, int *fence_out)
> +{
> + int ret;
> + int i;
> + struct timeval then, now;
> + bool have_then = false;
> + struct drm_ipvr_gem_execbuffer exec_arg;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *)bo;
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem*)bo-
> >bufmgr;
> +
> + pthread_mutex_lock(&bufmgr_gem->lock);
> +
> + ret = drm__ipvr_bo_process_reloc(bo,
> + IPVR_EXEC_OBJECT_NEED_FENCE | IPVR_EXEC_OBJECT_SUBMIT);
> + if (ret != 0) {
> + ERR("%s bo_process_reloc2 failed: %d (%s)\n",
> + __FUNCTION__, ret, strerror(ret));
> + pthread_mutex_unlock(&bufmgr_gem->lock);
> + return ret;
> + }
> +
> + VERB("%s finished the reloc/validate processing. exec_count=%d\n",
> + __FUNCTION__, bufmgr_gem->exec_count);
> + exec_arg.exec_start_offset = offset;
> + exec_arg.exec_len = len;
> + exec_arg.buffers_ptr = (uintptr_t)bufmgr_gem->exec_objs;
> + exec_arg.buffer_count = bufmgr_gem->exec_count;
> + exec_arg.ctx_id = bo_gem->ctx->ctx_id;
> + VERB("%s sending EXEC IOCTL to kernel with: cmdbuf_handle %x (0x%lx),
> size %zu, "
> + "buffer_list_count %u, ctx_id 0x%08x\n", __FUNCTION__, bo->handle,
> + bo->offset, len,
> + exec_arg.buffer_count, exec_arg.ctx_id);
> +
> + bufmgr_gem->exec_seq ++;
> + do {
> + ret = drmCommandWriteRead(bufmgr_gem->fd,
> + DRM_IPVR_GEM_EXECBUFFER,
> + &exec_arg, sizeof(exec_arg));
> + if (ret == EAGAIN) {
> + if (!have_then) {
> + if (gettimeofday(&then, NULL)) {
> + ERR("%s have no then, gettimeofday error.\n", __FUNCTION__);
> + break;
> + }
> +
> + have_then = true;
> + }
> + if (gettimeofday(&now, NULL)) {
> + ERR("%s: Gettimeofday error.\n", __FUNCTION__);
> + break;
> + }
> +
> + }
> + } while ((ret == EAGAIN) && (drm__ipvr_time_diff(&now, &then) <
> IPVR_TIMEOUT_USEC));
> +
> + if (ret) {
> + WARN("%s: command write return is %d\n", __FUNCTION__, ret);
> + goto out;
> + }
> +
> + /* update the presumed_mmu_offsets
> + * in case we support eviction in IPVR driver later */
> + for (i = 0; i < bufmgr_gem->exec_count; i++) {
> + drm_ipvr_bo *bo = bufmgr_gem->exec_bos[i];
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *)bo;
> +
> + /* Update the buffer offset to accelerate future exec */
> + if (bufmgr_gem->exec_objs[i].offset != bo->offset) {
> + VERB("BO \"%s\" hnd %x migrated: 0x%"PRIx64" -> 0x%llx\n",
> + bo_gem->name, bo->handle, bo->offset,
> + bufmgr_gem->exec_objs[i].offset);
> + bo->offset = bufmgr_gem->exec_objs[i].offset;
> + }
> + bo_gem->exec_seq = bufmgr_gem->exec_seq;
> + }
> +
> + VERB("%s EXECBUFFER IOCTL succeeded\n", __FUNCTION__);
> +out:
> + for (i = 0; i < bufmgr_gem->exec_count; i++) {
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem*)bufmgr_gem-
> >exec_bos[i];
> +
> + /* Disconnect the buffer from the validate list */
> + bo_gem->validate_index = -1;
> + bufmgr_gem->exec_bos[i] = NULL;
> + }
> +
> + /* autmatically decrease all bo's refcount in the reloc tree.
> + * VA created bo will be cached if unreferencing in vaRenderPicture.
> + * execbuf/mtxmsg/surface/colocated_buffer's refcount will become 1.
> + */
> + drm_ipvr_gem_bo_remove_relocs(bo, 1);
> +
> + bufmgr_gem->exec_count = 0;
> + pthread_mutex_unlock(&bufmgr_gem->lock);
> + return 0;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_busy(drm_ipvr_bo *bo)
> +{
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem*)bo-
> >bufmgr;
> + drm_ipvr_bo_gem *bo_gem = (drm_ipvr_bo_gem *) bo;
> + struct drm_ipvr_gem_busy arg;
> + int ret;
> +
> + arg.handle = bo->handle;
> +
> + ret = drmCommandWriteRead(bufmgr_gem->fd, DRM_IPVR_GEM_BUSY,
> &arg, sizeof(arg));
> + if (ret == -EBUSY || (ret == 0 && arg.busy)) {
> + VERB("%s returns %d: buffer \"%s\" hnd %x (offset 0x%lx) param is
> busy\".\n",
> + __FUNCTION__, ret, bo_gem->name, bo->handle, bo->offset);
> + return 1;
> + }
> + else if (!ret && !arg.busy){
> + VERB("%s: buffer \"%s\" hnd %x (offset 0x%lx) param is free\".\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset);
> + return 0;
> + }
> + else {
> + WARN("%s: checking buffer busy \"%s\" hnd %u (offset 0x%lx) "
> + "got unexpected result: %d (%s), busy state=%d, view it as free.\n",
> + __FUNCTION__, bo_gem->name, bo->handle, bo->offset, ret,
> strerror(ret), arg.busy);
> +
> + return 0;
> + }
> +}
> +
> +drm_public void
> +drm_ipvr_gem_bufmgr_destroy(drm_ipvr_bufmgr *bufmgr)
> +{
> + int j;
> + drm_ipvr_bufmgr_gem *bufmgr_gem =
> (drm_ipvr_bufmgr_gem*)bufmgr;
> +
> + if (bufmgr_gem->exec_bos)
> + free(bufmgr_gem->exec_bos);
> + if (bufmgr_gem->exec_objs)
> + free(bufmgr_gem->exec_objs);
> +
> + if (bufmgr_gem->cache_buckets) {
> + for (j = 0; j < bufmgr_gem->cache_bucket_size; j++) {
> + struct drm_ipvr_cache_bucket *bucket =
> + &bufmgr_gem->cache_buckets[j];
> +
> + while (!DRMLISTEMPTY(&bucket->head)) {
> + drm_ipvr_bo_gem *bo_gem;
> +
> + bo_gem = DRMLISTENTRY(drm_ipvr_bo_gem,
> + bucket->head.next, cache_head);
> +
> + DRMLISTDELINIT(&bo_gem->cache_head);
> + bucket->count--;
> + assert(bo_gem->reloc_count == 0);
> + drm__ipvr_gem_bo_free(&bo_gem->base);
> + }
> + }
> +
> + free(bufmgr_gem->cache_buckets);
> + }
> +
> + pthread_mutex_destroy(&bufmgr_gem->lock);
> + free(bufmgr_gem);
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bo_references(drm_ipvr_bo *bo, drm_ipvr_bo *target_bo)
> +{
> + return -1;
> +}
> +
> +drm_public void
> +drm_ipvr_gem_context_destroy(drm_ipvr_context *ctx)
> +{
> + int ret;
> + drm_ipvr_bufmgr_gem *bufmgr_gem = (drm_ipvr_bufmgr_gem*)ctx-
> >bufmgr;
> + struct drm_ipvr_context_destroy arg;
> + arg.ctx_id = ctx->ctx_id;
> +
> + ret = drmCommandWriteRead(bufmgr_gem->fd,
> DRM_IPVR_CONTEXT_DESTROY, &arg, sizeof(arg));
> + if (ret != 0) {
> + ERR("%s: Error destroying context %u: %s .\n",
> + __FUNCTION__, ctx->ctx_id, strerror(ret));
> + }
> +
> + pthread_mutex_destroy(&bufmgr_gem->lock);
> + pthread_mutex_destroy(&bufmgr_gem->list_lock);
> + free(ctx);
> +}
> +
> +drm_public drm_ipvr_context*
> +drm_ipvr_gem_context_create(drm_ipvr_bufmgr *bufmgr, uint32_t
> ctx_type,
> + uint32_t tiling_stride, uint32_t tiling_mode)
> +{
> + int ret;
> + drm_ipvr_bufmgr_gem *bufmgr_gem =
> (drm_ipvr_bufmgr_gem*)bufmgr;
> + struct drm_ipvr_context_create arg;
> + drm_ipvr_context *ctx = calloc(1, sizeof(drm_ipvr_context));
> + arg.ctx_type = ctx_type;
> + arg.tiling_stride = tiling_stride;
> + arg.tiling_scheme = tiling_mode;
> + ret = drmCommandWriteRead(bufmgr_gem->fd,
> DRM_IPVR_CONTEXT_CREATE, &arg, sizeof(arg));
> + if (ret != 0) {
> + ERR("%s: Error creating context %d: %s. tiling stride=%u,
> scheme=%u\n",
> + __FUNCTION__, ctx_type, strerror(ret),
> + arg.tiling_stride, arg.tiling_scheme);
> + free(ctx);
> + return NULL;
> + }
> + ctx->ctx_id = arg.ctx_id;
> + ctx->ctx_type = ctx_type;
> + ctx->bufmgr = bufmgr;
> +
> + DBG("%s: successfully create drm context: id=%x, tiling stride=%u,
> scheme=%u\n",
> + __FUNCTION__, ctx->ctx_id, arg.tiling_stride, arg.tiling_scheme);
> + return ctx;
> +}
> +
> +drm_public int
> +drm_ipvr_gem_bufmgr_get_device_info(drm_ipvr_bufmgr *bufmgr,
> uint16_t *dev_id, uint16_t *caps)
> +{
> + struct drm_ipvr_misc arg;
> + int ret;
> + drm_ipvr_bufmgr_gem *bufmgr_gem =
> (drm_ipvr_bufmgr_gem*)bufmgr;
> + unsigned long info;
> + arg.key = IPVR_DEVICE_INFO;
> + arg.value = (uint64_t)((unsigned long)&info);
> + ret = drmCommandWriteRead(bufmgr_gem->fd, DRM_IPVR_MISC, &arg,
> sizeof(arg));
> + if (ret != 0) {
> + ERR("%s: Error getting device info: %s .\n",
> + __FUNCTION__, strerror(ret));
> + return ret;
> + }
> + *dev_id = (info >> 16) & 0xffff;
> + *caps = info & 0xffff;
> + return 0;
> +}
> +
> +drm_public drm_ipvr_bufmgr *
> +drm_ipvr_gem_bufmgr_init(int fd, int batch_size)
> +{
> + drm_ipvr_bufmgr_gem * bufmgr_gem = NULL;
> + int j;
> +
> + bufmgr_gem = calloc(1, sizeof(*bufmgr_gem));
> + if (bufmgr_gem == NULL) {
> + ERR("bufmgr init: calloc failed: %s\n", strerror(errno));
> + return NULL;
> + }
> +
> + bufmgr_gem->fd = fd;
> +
> + if (pthread_mutex_init(&bufmgr_gem->lock, NULL) != 0) {
> + ERR("bufmgr init: mutex init failed: %s\n", strerror(errno));
> + free(bufmgr_gem);
> + bufmgr_gem = NULL;
> + return NULL;
> + }
> + if (pthread_mutex_init(&bufmgr_gem->list_lock, NULL) != 0) {
> + ERR("bufmgr init: mutex init failed: %s\n", strerror(errno));
> + free(bufmgr_gem);
> + bufmgr_gem = NULL;
> + return NULL;
> + }
> +
> + /* Hard code one.
> + */
> + bufmgr_gem->max_relocs = 32;
> +
> + bufmgr_gem->exec_seq = -1;
> +
> + /* init cache buckets */
> + /* 4KB, 8KB, 16KB, 32KB, 64KB, 128KB, 256KB, 512KB, 1MB, 2MB, 4MB,
> 8MB, 16MB, 32MB */
> + bufmgr_gem->cache_bucket_size = 14;
> + bufmgr_gem->cache_buckets = calloc(bufmgr_gem->cache_bucket_size,
> + sizeof(struct drm_ipvr_cache_bucket));
> + if (!bufmgr_gem->cache_buckets) {
> + ERR("%s failed to allocate cache buckets\n", __FUNCTION__);
> + return NULL;
> + }
> +
> + for (j = 0; j < bufmgr_gem->cache_bucket_size; ++j) {
> + DRMINITLISTHEAD(&bufmgr_gem->cache_buckets[j].head);
> + bufmgr_gem->cache_buckets[j].size = 0x1000 << j;
> + bufmgr_gem->cache_buckets[j].limit = 2 << ((14 - j)/2);
> + bufmgr_gem->cache_buckets[j].count = 0;
> + }
> +
> + DBG("%s created bufmgr %p with cache_bucket_size %u\n",
> + __FUNCTION__, &bufmgr_gem->base, bufmgr_gem-
> >cache_bucket_size);
> +
> + return &bufmgr_gem->base;
> +}
> diff --git a/ipvr/libdrm_ipvr.pc.in b/ipvr/libdrm_ipvr.pc.in
> new file mode 100644
> index 0000000..2fe9ab6
> --- /dev/null
> +++ b/ipvr/libdrm_ipvr.pc.in
> @@ -0,0 +1,11 @@
> +prefix=@prefix@
> +exec_prefix=@exec_prefix@
> +libdir=@libdir@
> +includedir=@includedir@
> +
> +Name: libdrm_ipvr
> +Description: Userspace interface to VP8 hardware decoder on baytrail
> +Version: @PACKAGE_VERSION@
> +Requires: libdrm
> +Libs: -L${libdir} -ldrm_ipvr
> +Cflags: -I${includedir} -I${includedir}/libdrm
> diff --git a/ipvr/test_ioctl.c b/ipvr/test_ioctl.c
> new file mode 100644
> index 0000000..976c244
> --- /dev/null
> +++ b/ipvr/test_ioctl.c
> @@ -0,0 +1,423 @@
> +/*********************************************************
> *****************
> + * test_ioctl.c: it is gem ioctl unit test
> + *
> + * Copyright (c) 2014 Intel Corporation, Hillsboro, OR, USA
> + * All Rights Reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms and conditions of the GNU General Public License,
> + * version 2, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope it will be useful, but WITHOUT
> + * ANY WARRANTY; without even the implied warranty of
> MERCHANTABILITY or
> + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
> License for
> + * more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> with
> + * this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
> + *
> + * Authors:
> + * Yao Cheng <yao.cheng at intel.com>
> + *
> +
> **********************************************************
> ****************/
> +#include <stdlib.h>
> +#include <stdio.h>
> +#include <unistd.h>
> +#include <string.h>
> +#include <assert.h>
> +#include <fcntl.h>
> +#include <inttypes.h>
> +#include <errno.h>
> +#include <sys/stat.h>
> +#include <sys/ioctl.h>
> +#include <sys/mman.h>
> +#include <stdint.h>
> +#include <sys/ioctl.h>
> +#include "ipvr_drm.h"
> +#include "i915_drm.h"
> +#include "../intel/intel_bufmgr.h"
> +#include <xf86drm.h>
> +#include <sys/time.h>
> +#include <time.h>
> +#include <errno.h>
> +#include <libdrm.h>
> +
> +#define exiterr(ret, fmt, ...) \
> + do { \
> + fprintf(stderr, fmt, ##__VA_ARGS__); \
> + exit(ret); \
> + } while (0);
> +
> +#define check_ret(ret) \
> + do { \
> + if (ret) { \
> + exiterr(ret, "failed at %s::%d: %d (%s)\n", __FILE__, __LINE__, ret,
> strerror(ret)); \
> + } \
> + } while (0);
> +#define check_addr(addr) \
> + do { \
> + if (!addr) { \
> + exiterr(-1, "failed at %s::%d: NULL address\n", __FILE__, __LINE__); \
> + } \
> + } while (0);
> +
> +static unsigned char msg_data[] = {
> +
> 0x14,0x81,0x80,0x01,0x11,0x49,0x85,0x00,0x00,0xd0,0x5b,0x00,0x95,0x70,0x
> ee,0x31,
> + 0x00,0x10,0x21,0x04
> +};
> +
> +static void basic_test(int fd)
> +{
> + struct drm_ipvr_gem_create create_arg;
> + struct drm_gem_close close_arg;
> + struct drm_gem_flink flink_arg;
> + struct drm_gem_open open_arg;
> + struct drm_ipvr_gem_mmap_offset map_offset_arg;
> + int i915_fd, export_fd, i915_export_fd;
> + dri_bufmgr *i915_bufmgr;
> + dri_bo *i915_bo;
> + uint32_t global_name;
> + uint32_t *vaddr;
> + uint32_t import_handle;
> + int ret;
> +
> + printf("\nTesting gem create.\n");
> +
> + /* create bo iotcl*/
> + memset(&create_arg, 0, sizeof(create_arg));
> + create_arg.size = 16 * 1024;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_CREATE,
> &create_arg, sizeof(create_arg));
> + check_ret(ret);
> +
> + printf("\nTest mmap.\n");
> +
> + /* mmap bo ioctl*/
> + if (!create_arg.map_offset) {
> + printf("didn't get valid map_offset during BO creation. call
> MMAP_OFFSET\n");
> + map_offset_arg.handle = create_arg.handle;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_MMAP_OFFSET,
> &map_offset_arg, sizeof(map_offset_arg));
> + check_ret(ret);
> + }
> + vaddr = drm_mmap(NULL, create_arg.rounded_size, PROT_READ |
> PROT_WRITE,
> + MAP_SHARED, fd, create_arg.map_offset);
> + if (vaddr) {
> + printf("succeed to call drm_mmap, addr_ptr is %p, writting"
> + " 0xa5a5a5a5 0xb6b6b6b6 0xc7c7c7c7 0xd8d8d8d8 into it.\n", vaddr);
> + *vaddr++ = 0xa5a5a5a5;
> + *vaddr++ = 0xb6b6b6b6;
> + *vaddr++ = 0xc7c7c7c7;
> + *vaddr++ = 0xd8d8d8d8;
> + } else
> + exiterr(-1, "failed to call DRM_IOCTL_IPVR_GEM_MMAP ioctl: %d
> (%s).\n", ret, strerror(ret));
> + drm_munmap(vaddr, create_arg.rounded_size);
> +
> + printf("\nTest opening flinked BOs.\n");
> +
> + {
> + /* flink the bo */
> + flink_arg.handle = create_arg.handle;
> + flink_arg.name = 0;
> + ret = drmIoctl(fd, DRM_IOCTL_GEM_FLINK, &flink_arg);
> + check_ret(ret);
> + global_name = flink_arg.name;
> +
> + /* open from flink name */
> + open_arg.name = global_name;
> + ret = drmIoctl(fd, DRM_IOCTL_GEM_OPEN, &open_arg);
> + check_ret(ret);
> +
> + if (open_arg.size != create_arg.rounded_size)
> + exiterr(-1, "opened size %llu not consistent with created size %llu\n",
> + open_arg.size, create_arg.rounded_size);
> +
> + /* mmap and verify the bo content */
> + map_offset_arg.handle = open_arg.handle;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_MMAP_OFFSET,
> &map_offset_arg, sizeof(map_offset_arg));
> + check_ret(ret);
> + /* mmap bo ioctl*/
> + vaddr = drm_mmap(NULL, open_arg.size, PROT_READ | PROT_WRITE,
> + MAP_SHARED, fd, map_offset_arg.offset);
> + check_addr(vaddr);
> + printf("succeed to call drm_mmap, addr_ptr is %p, readding got "
> + "0x%08x 0x%08x 0x%08x 0x%08x.\n", vaddr,
> + *vaddr, *(vaddr+1), *(vaddr+2), *(vaddr+3));
> + if (*vaddr == 0xa5a5a5a5 &&
> + *(vaddr+1) == 0xb6b6b6b6 &&
> + *(vaddr+2) == 0xc7c7c7c7 &&
> + *(vaddr+3) == 0xd8d8d8d8) {
> + printf("succeed to verify opened BO content.\n");
> + }
> + else {
> + drm_munmap(vaddr, create_arg.rounded_size);
> + exiterr(-1, "failed to call DRM_IOCTL_IPVR_GEM_MMAP ioctl: %d
> (%s).\n", ret, strerror(ret));
> + }
> + drm_munmap(vaddr, create_arg.rounded_size);
> +
> + /* close opened bo ioctl*/
> + close_arg.handle = open_arg.handle;
> + ret = drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
> + check_ret(ret);
> + }
> +
> + printf("\nTest importing i915 prime BOs.\n");
> +
> + i915_fd = open("/dev/dri/card0", O_RDWR);
> + i915_bufmgr = drm_intel_bufmgr_gem_init(i915_fd, 4096);
> +
> + /* test prime import */
> + {
> + i915_bo = dri_bo_alloc(i915_bufmgr, "to-be-exported", 4096, 0x1000);
> + check_addr(i915_bo);
> + ret = dri_bo_map(i915_bo, 1);
> + check_ret(ret);
> + check_addr(i915_bo->virtual);
> + vaddr = i915_bo->virtual;
> + printf("mapped i915 BO to %p and write"
> + " 0xd8d8d8d8 0xc7c7c7c7 0xb6b6b6b6 0xa5a5a5a5 into it.\n", vaddr);
> + *vaddr++ = 0xd8d8d8d8;
> + *vaddr++ = 0xc7c7c7c7;
> + *vaddr++ = 0xb6b6b6b6;
> + *vaddr++ = 0xa5a5a5a5;
> + ret = dri_bo_unmap(i915_bo);
> + check_ret(ret);
> + ret = drm_intel_bo_gem_export_to_prime(i915_bo, &i915_export_fd);
> + check_ret(ret);
> + ret = drmPrimeFDToHandle(fd, i915_export_fd, &import_handle);
> + map_offset_arg.handle = import_handle;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_MMAP_OFFSET,
> &map_offset_arg, sizeof(map_offset_arg));
> + check_ret(ret);
> + vaddr = drm_mmap(NULL, 4096, PROT_READ | PROT_WRITE,
> + MAP_SHARED, fd, map_offset_arg.offset);
> + check_addr(vaddr);
> + printf("succeed mapping the imported BO to %p, content is "
> + "0x%08x 0x%08x 0x%08x 0x%08x.\n", vaddr,
> + *vaddr, *(vaddr+1), *(vaddr+2), *(vaddr+3));
> + if (*vaddr == 0xd8d8d8d8 &&
> + *(vaddr+1) == 0xc7c7c7c7 &&
> + *(vaddr+2) == 0xb6b6b6b6 &&
> + *(vaddr+3) == 0xa5a5a5a5) {
> + printf("succeeded verifying imported i915 prime BO content.\n");
> + }
> + else
> + exiterr(-1, "failed to verify imported i915 prime BO content\n");
> + ret = drm_munmap(vaddr, 4096);
> + check_ret(ret);
> + close_arg.handle = import_handle;
> + ret = drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
> + check_ret(ret);
> + close(i915_export_fd);
> + dri_bo_unreference(i915_bo);
> + }
> +
> + printf("\nTest exporting prime BO and import with i915.\n");
> +
> + /* test prime export */
> + {
> + ret = drmPrimeHandleToFD(fd, create_arg.handle, 0, &export_fd);
> + check_ret(ret);
> + i915_bo = drm_intel_bo_gem_create_from_prime(i915_bufmgr,
> export_fd, create_arg.rounded_size);
> + check_addr(i915_bo);
> + ret = drm_intel_gem_bo_map_gtt(i915_bo);
> + check_ret(ret);
> + check_addr (i915_bo->virtual);
> + vaddr = i915_bo->virtual;
> + printf("succeed to import with i915 and mapping to %p, content is "
> + "0x%08x 0x%08x 0x%08x 0x%08x.\n", vaddr,
> + *vaddr, *(vaddr+1), *(vaddr+2), *(vaddr+3));
> + if (*vaddr == 0xa5a5a5a5 &&
> + *(vaddr+1) == 0xb6b6b6b6 &&
> + *(vaddr+2) == 0xc7c7c7c7 &&
> + *(vaddr+3) == 0xd8d8d8d8) {
> + printf("succeed to verify exported prime BO content.\n");
> + }
> + else
> + exiterr(-1, "failed to verify exported prime BO content.\n");
> + ret = dri_bo_unmap(i915_bo);
> + check_ret(ret);
> + dri_bo_unreference(i915_bo);
> + close(export_fd);
> + }
> + dri_bufmgr_destroy(i915_bufmgr);
> + close(i915_fd);
> +
> + /* close bo ioctl*/
> + close_arg.handle = create_arg.handle;
> + ret = drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
> + check_ret(ret);
> +
> + printf("\nExit gem basic test.\n");
> +}
> +
> +static void exec_test(int fd)
> +{
> + struct drm_ipvr_context_create ctx_create_arg;
> + struct drm_ipvr_context_destroy ctx_destroy_arg;
> + struct drm_ipvr_gem_create create_arg;
> + struct drm_ipvr_gem_execbuffer exec_arg;
> + struct drm_ipvr_gem_wait wait_arg;
> + struct drm_ipvr_gem_busy busy_arg;
> + struct drm_gem_close close_arg;
> + struct drm_ipvr_gem_relocation_entry reloc_entries[3];
> + struct drm_ipvr_gem_exec_object *exec_objs;
> + struct drm_ipvr_gem_exec_object *arg;
> + int i915_fd, i915_export_fd;
> + dri_bufmgr *i915_bufmgr;
> + dri_bo *i915_bo;
> + uint32_t import_handle;
> + uint32_t *dword;
> + uint32_t *vaddr;
> + int i, ret, buffer_count, cmdbuf_size, ctx_type;
> +
> + printf("\nTest simple exec ioctl.\n");
> + i915_fd = open("/dev/dri/card0", O_RDWR);
> + i915_bufmgr = drm_intel_bufmgr_gem_init(i915_fd, 4096);
> +
> + /* create a ctx_context, which is needed for exec ioctl */
> + memset(&ctx_create_arg, 0, sizeof(ctx_create_arg));
> + ctx_type = IPVR_CONTEXT_TYPE_VED;
> + ctx_create_arg.ctx_type = ctx_type;
> + ctx_create_arg.tiling_scheme = 0;
> + ctx_create_arg.tiling_stride = 0;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_CONTEXT_CREATE,
> &ctx_create_arg, sizeof(ctx_create_arg));
> + check_ret(ret);
> +
> + buffer_count = 4;
> + dword = msg_data;
> + exec_objs = calloc(1, sizeof(struct drm_ipvr_gem_exec_object) *
> buffer_count);
> +
> + /* create 1 bo with correct mmu offset */
> + arg = &exec_objs[0];
> + memset(&create_arg, 0, sizeof(create_arg));
> + create_arg.size = 16 * 1024;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_CREATE,
> &create_arg, sizeof(create_arg));
> + check_ret(ret);
> + arg->handle = create_arg.handle;
> + arg->offset = create_arg.mmu_offset;
> + arg->flags |= IPVR_EXEC_OBJECT_NEED_FENCE;
> + arg->relocation_count = 0;
> + arg->relocs_ptr = (uintptr_t)NULL;
> + reloc_entries[0].delta = 0;
> + reloc_entries[0].offset = 8;
> + reloc_entries[0].presumed_offset = create_arg.mmu_offset;
> + reloc_entries[0].target_handle = create_arg.handle;
> +
> + /* create 1 bo with wrong mmu offset */
> + arg = &exec_objs[1];
> + memset(&create_arg, 0, sizeof(create_arg));
> + create_arg.size = 16 * 1024;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_CREATE,
> &create_arg, sizeof(create_arg));
> + check_ret(ret);
> + arg->handle = create_arg.handle;
> + arg->offset = create_arg.mmu_offset;
> + arg->flags |= IPVR_EXEC_OBJECT_NEED_FENCE;
> + arg->relocation_count = 0;
> + arg->relocs_ptr = (uintptr_t)NULL;
> + reloc_entries[1].delta = 0;
> + reloc_entries[1].offset = 12;
> + reloc_entries[1].presumed_offset = dword[reloc_entries[1].offset/4];
> + arg->offset = reloc_entries[1].presumed_offset;
> + reloc_entries[1].target_handle = create_arg.handle;
> +
> + /* import a i915 bo */
> + i915_bo = dri_bo_alloc(i915_bufmgr, "to-be-exported", 16 * 1024,
> 0x1000);
> + check_addr(i915_bo);
> + ret = drm_intel_bo_gem_export_to_prime(i915_bo, &i915_export_fd);
> + check_ret(ret);
> + ret = drmPrimeFDToHandle(fd, i915_export_fd, &import_handle);
> + check_ret(ret);
> + arg = &exec_objs[2];
> + arg->handle = import_handle;
> + arg->offset = 0; /* we don't know the mmu offset */
> + arg->flags |= IPVR_EXEC_OBJECT_NEED_FENCE;
> + arg->relocation_count = 0;
> + arg->relocs_ptr = (uintptr_t)NULL;
> + reloc_entries[2].delta = 0;
> + reloc_entries[2].offset = 16;
> + reloc_entries[2].presumed_offset = 0;
> + reloc_entries[2].target_handle = import_handle;
> +
> + /* create a cmd bo with 1 page */
> + memset(&create_arg, 0, sizeof(create_arg));
> + cmdbuf_size = 4 * 1024;
> + create_arg.size = cmdbuf_size;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_CREATE,
> &create_arg, sizeof(create_arg));
> + check_ret(ret);
> +
> + vaddr = drm_mmap(NULL, create_arg.rounded_size, PROT_READ |
> PROT_WRITE,
> + MAP_SHARED, fd, create_arg.map_offset);
> + if (vaddr) {
> + printf("succeed to map CMD BO, addr_ptr is %p.\n", vaddr);
> + memcpy((void *)vaddr, msg_data, sizeof(msg_data));
> + } else
> + exiterr(-1, "failed to map CMD BO.\n");
> + drm_munmap(vaddr, create_arg.rounded_size);
> + arg = &exec_objs[3];
> + arg->handle = create_arg.handle;
> + arg->offset = create_arg.mmu_offset;
> + arg->flags |= IPVR_EXEC_OBJECT_NEED_FENCE |
> IPVR_EXEC_OBJECT_SUBMIT;
> + arg->relocation_count = 3;
> + arg->relocs_ptr = (uintptr_t)reloc_entries;
> +
> + /* run execbuffer ioctl */
> + memset(&exec_arg, 0, sizeof(exec_arg));
> + exec_arg.buffer_count = buffer_count;
> + exec_arg.buffers_ptr = (uintptr_t)exec_objs;
> + exec_arg.exec_start_offset = 0;
> + exec_arg.exec_len = 20;
> + exec_arg.ctx_id = ctx_create_arg.ctx_id;
> +
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_EXECBUFFER,
> &exec_arg, sizeof(exec_arg));
> + check_ret(ret);
> +
> + /*check busy ioctl*/
> + memset(&busy_arg, 0, sizeof(busy_arg));
> + busy_arg.handle = create_arg.handle;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_BUSY, &busy_arg,
> sizeof(busy_arg));
> + if (ret != 0 && ret != -EBUSY)
> + exiterr(ret, "failed calling DRM_IPVR_GEM_BUSY: %d (%s)\n", ret,
> strerror(ret));
> +
> + /*wait for finish*/
> + memset(&wait_arg, 0, sizeof(wait_arg));
> + wait_arg.handle = create_arg.handle;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_GEM_WAIT, &wait_arg,
> sizeof(wait_arg));
> + /* the random command causes PANIC */
> + check_ret(!(ret == 0) && !(ret == -EDEADLK));
> +
> + /* close val bo and cmd bo */
> + memset(&close_arg, 0, sizeof(close_arg));
> + for (i = 0; i < buffer_count; i++) {
> + close_arg.handle = exec_objs[i].handle;
> + ret = drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &close_arg);
> + if (ret == 0)
> + printf("succeed to call DRM_IOCTL_GEM_CLOSE ioctl.\n");
> + else
> + exiterr(-1, "failed to call DRM_IOCTL_GEM_CLOSE ioctl.\n");
> + }
> +
> + /* clean up i915 */
> + close(i915_export_fd);
> + dri_bo_unreference(i915_bo);
> + dri_bufmgr_destroy(i915_bufmgr);
> + close(i915_fd);
> +
> + /* destroy the ctx_context */
> + memset(&ctx_destroy_arg, 0, sizeof(ctx_destroy_arg));
> + ctx_destroy_arg.ctx_id = ctx_create_arg.ctx_id;
> + ret = drmCommandWriteRead(fd, DRM_IPVR_CONTEXT_DESTROY,
> &ctx_destroy_arg, sizeof(ctx_destroy_arg));
> + check_ret(ret);
> + return;
> +}
> +
> +int main(int argc, char **argv)
> +{
> + int fd;
> +
> + fd = open("/dev/dri/card1", O_RDWR);
> + /* test bo create, mmap, close */
> + basic_test(fd);
> + /* simulate exec ioctl */
> + exec_test(fd);
> + close(fd);
> + return 0;
> +}
> --
> 2.1.0
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