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|
/*
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Benjamin Segovia <benjamin.segovia@intel.com>
*/
/*
* Copyright 2009 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, 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 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT 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.
*
* Authors:
* Xiang Haihao <haihao.xiang@intel.com>
* Zou Nan hai <nanhai.zou@intel.com>
*
*/
#if defined(HAS_EGL)
#include "GL/gl.h"
#include "EGL/egl.h"
#include "x11/mesa_egl_extension.h"
#endif
#include "intel_driver.h"
#include "intel_gpgpu.h"
#include "intel_batchbuffer.h"
#include "intel_bufmgr.h"
#include <X11/Xlibint.h>
#include "x11/dricommon.h"
#include "cl_mem.h"
#include <assert.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <xf86drm.h>
#include <stdio.h>
#include "cl_utils.h"
#include "cl_alloc.h"
#include "cl_context.h"
#include "cl_driver.h"
#include "cl_device_id.h"
#include "cl_platform_id.h"
#define SET_BLOCKED_SIGSET(DRIVER) do { \
sigset_t bl_mask; \
sigfillset(&bl_mask); \
sigdelset(&bl_mask, SIGFPE); \
sigdelset(&bl_mask, SIGILL); \
sigdelset(&bl_mask, SIGSEGV); \
sigdelset(&bl_mask, SIGBUS); \
sigdelset(&bl_mask, SIGKILL); \
pthread_sigmask(SIG_SETMASK, &bl_mask, &(DRIVER)->sa_mask); \
} while (0)
#define RESTORE_BLOCKED_SIGSET(DRIVER) do { \
pthread_sigmask(SIG_SETMASK, &(DRIVER)->sa_mask, NULL); \
} while (0)
#define PPTHREAD_MUTEX_LOCK(DRIVER) do { \
SET_BLOCKED_SIGSET(DRIVER); \
pthread_mutex_lock(&(DRIVER)->ctxmutex); \
} while (0)
#define PPTHREAD_MUTEX_UNLOCK(DRIVER) do { \
pthread_mutex_unlock(&(DRIVER)->ctxmutex); \
RESTORE_BLOCKED_SIGSET(DRIVER); \
} while (0)
static void
intel_driver_delete(intel_driver_t *driver)
{
if (driver == NULL)
return;
if (driver->bufmgr)
drm_intel_bufmgr_destroy(driver->bufmgr);
cl_free(driver);
}
static intel_driver_t*
intel_driver_new(void)
{
intel_driver_t *driver = NULL;
TRY_ALLOC_NO_ERR (driver, CALLOC(intel_driver_t));
driver->fd = -1;
exit:
return driver;
error:
intel_driver_delete(driver);
driver = NULL;
goto exit;
}
/* just used for maximum relocation number in drm_intel */
#define BATCH_SIZE 0x2000
static void
intel_driver_memman_init(intel_driver_t *driver)
{
driver->bufmgr = drm_intel_bufmgr_gem_init(driver->fd, BATCH_SIZE);
assert(driver->bufmgr);
//drm_intel_bufmgr_gem_set_aub_dump(driver->bufmgr, 1);
drm_intel_bufmgr_gem_enable_reuse(driver->bufmgr);
}
static void
intel_driver_init(intel_driver_t *driver, int dev_fd)
{
driver->fd = dev_fd;
driver->locked = 0;
pthread_mutex_init(&driver->ctxmutex, NULL);
#ifndef NDEBUG
int res =
#endif /* NDEBUG */
intel_driver_get_param(driver, I915_PARAM_CHIPSET_ID, &driver->device_id);
assert(res);
intel_driver_memman_init(driver);
#if EMULATE_GEN
driver->gen_ver = EMULATE_GEN;
if (EMULATE_GEN == 75)
driver->device_id = PCI_CHIP_HASWELL_L; /* we pick L for HSW */
else if (EMULATE_GEN == 7)
driver->device_id = PCI_CHIP_IVYBRIDGE_GT2; /* we pick GT2 for IVB */
else if (EMULATE_GEN == 6)
driver->device_id = PCI_CHIP_SANDYBRIDGE_GT2; /* we pick GT2 for SNB */
else
FATAL ("Unsupported Gen for emulation");
#else
if (IS_GEN75(driver->device_id))
driver->gen_ver = 75;
else if (IS_GEN7(driver->device_id))
driver->gen_ver = 7;
else if (IS_GEN6(driver->device_id))
driver->gen_ver = 6;
else if(IS_IGDNG(driver->device_id))
driver->gen_ver = 5;
else
driver->gen_ver = 4;
#endif /* EMULATE_GEN */
}
static void
intel_driver_open(intel_driver_t *intel, cl_context_prop props)
{
int cardi;
char *driver_name;
if (props != NULL
&& props->gl_type != CL_GL_NOSHARE
&& props->gl_type != CL_GL_GLX_DISPLAY
&& props->gl_type != CL_GL_EGL_DISPLAY) {
printf("Unsupported gl share type %d.\n", props->gl_type);
exit(-1);
}
intel->x11_display = XOpenDisplay(NULL);
if(intel->x11_display) {
if((intel->dri_ctx = getDRI2State(intel->x11_display,
DefaultScreen(intel->x11_display),
&driver_name))) {
intel_driver_init_shared(intel, intel->dri_ctx);
Xfree(driver_name);
}
else
printf("X server found. dri2 connection failed! \n");
} else {
printf("Can't find X server!\n");
}
if(!intel_driver_is_active(intel)) {
printf("Trying to open directly...\n");
char card_name[20];
for(cardi = 0; cardi < 16; cardi++) {
sprintf(card_name, "/dev/dri/card%d", cardi);
if(intel_driver_init_master(intel, card_name)) {
printf("Success at %s.\n", card_name);
break;
}
}
}
if(!intel_driver_is_active(intel)) {
printf("Device open failed\n");
exit(-1);
}
#ifdef HAS_EGL
if (props && props->gl_type == CL_GL_EGL_DISPLAY) {
assert(props->egl_display);
}
#endif
}
static void
intel_driver_close(intel_driver_t *intel)
{
if(intel->dri_ctx) dri_state_release(intel->dri_ctx);
if(intel->x11_display) XCloseDisplay(intel->x11_display);
if(intel->fd) close(intel->fd);
intel->dri_ctx = NULL;
intel->x11_display = NULL;
intel->fd = 0;
}
LOCAL int
intel_driver_get_param(intel_driver_t *driver, int param, int *value)
{
int ret;
struct drm_i915_getparam gp;
memset(&gp, 0, sizeof(struct drm_i915_getparam));
gp.param = param;
gp.value = value;
ret = drmCommandWriteRead(driver->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
return ret == 0;
}
LOCAL int
intel_driver_is_active(intel_driver_t *driver) {
return driver->fd >= 0;
}
LOCAL int
intel_driver_init_shared(intel_driver_t *driver, dri_state_t *state)
{
assert(state);
if(state->driConnectedFlag != DRI2)
return 0;
intel_driver_init(driver, state->fd);
driver->master = 0;
return 1;
}
LOCAL int
intel_driver_init_master(intel_driver_t *driver, const char* dev_name)
{
int dev_fd;
drm_client_t client;
// usually dev_name = "/dev/dri/card%d"
dev_fd = open(dev_name, O_RDWR);
if (dev_fd == -1) {
printf("open(\"%s\", O_RDWR) failed: %s\n", dev_name, strerror(errno));
return 0;
}
// Check that we're authenticated and the only opener
memset(&client, 0, sizeof(drm_client_t));
int ret = ioctl(dev_fd, DRM_IOCTL_GET_CLIENT, &client);
assert (ret == 0);
if (!client.auth) {
printf("%s not authenticated\n", dev_name);
close(dev_fd);
return 0;
}
client.idx = 1;
ret = ioctl(dev_fd, DRM_IOCTL_GET_CLIENT, &client);
if (ret != -1 || errno != EINVAL) {
printf("%s is already in use\n", dev_name);
close(dev_fd);
return 0;
}
intel_driver_init(driver, dev_fd);
driver->master = 1;
return 1;
}
LOCAL int
intel_driver_terminate(intel_driver_t *driver)
{
pthread_mutex_destroy(&driver->ctxmutex);
if(driver->master)
close(driver->fd);
driver->fd = -1;
return 1;
}
LOCAL void
intel_driver_lock_hardware(intel_driver_t *driver)
{
PPTHREAD_MUTEX_LOCK(driver);
assert(!driver->locked);
driver->locked = 1;
}
LOCAL void
intel_driver_unlock_hardware(intel_driver_t *driver)
{
driver->locked = 0;
PPTHREAD_MUTEX_UNLOCK(driver);
}
LOCAL dri_bo*
intel_driver_share_buffer(intel_driver_t *driver, const char *sname, uint32_t name)
{
assert(!driver->master);
dri_bo *bo = intel_bo_gem_create_from_name(driver->bufmgr,
sname,
name);
return bo;
}
LOCAL uint32_t
intel_driver_shared_name(intel_driver_t *driver, dri_bo *bo)
{
uint32_t name;
assert(!driver->master);
assert(bo);
dri_bo_flink(bo, &name);
return name;
}
/* XXX a null props is ok? */
static int
intel_get_device_id(void)
{
intel_driver_t *driver = NULL;
int intel_device_id;
driver = intel_driver_new();
assert(driver != NULL);
intel_driver_open(driver, NULL);
intel_device_id = driver->device_id;
intel_driver_close(driver);
intel_driver_terminate(driver);
intel_driver_delete(driver);
return intel_device_id;
}
static void
cl_intel_driver_delete(intel_driver_t *driver)
{
if (driver == NULL)
return;
intel_driver_close(driver);
intel_driver_terminate(driver);
intel_driver_delete(driver);
}
#include "program.h"
static intel_driver_t*
cl_intel_driver_new(cl_context_prop props)
{
intel_driver_t *driver = NULL;
TRY_ALLOC_NO_ERR (driver, intel_driver_new());
intel_driver_open(driver, props);
/* We use the first 2 slots(0,1) for all the bufs.
* Notify the gbe this base index, thus gbe can avoid conflicts
* when it allocates slots for images*/
gbe_set_image_base_index(3);
exit:
return driver;
error:
cl_intel_driver_delete(driver);
driver = NULL;
goto exit;
}
static drm_intel_bufmgr*
intel_driver_get_bufmgr(intel_driver_t *drv)
{
return drv->bufmgr;
}
static uint32_t
intel_driver_get_ver(struct intel_driver *drv)
{
return drv->gen_ver;
}
static size_t drm_intel_bo_get_size(drm_intel_bo *bo) { return bo->size; }
static void* drm_intel_bo_get_virtual(drm_intel_bo *bo) { return bo->virtual; }
static int get_cl_tiling(uint32_t drm_tiling)
{
switch(drm_tiling) {
case I915_TILING_X: return CL_TILE_X;
case I915_TILING_Y: return CL_TILE_Y;
case I915_TILING_NONE: return CL_NO_TILE;
default:
assert(0);
}
return CL_NO_TILE;
}
#if defined(HAS_EGL)
#include "intel_dri_resource_sharing.h"
#include "cl_image.h"
static int cl_get_clformat_from_texture(GLint tex_format, cl_image_format * cl_format)
{
cl_int ret = CL_SUCCESS;
switch (tex_format) {
case GL_RGBA8:
case GL_RGBA:
case GL_RGBA16:
case GL_RGBA8I:
case GL_RGBA16I:
case GL_RGBA32I:
case GL_RGBA8UI:
case GL_RGBA16UI:
case GL_RGBA32UI:
case GL_RGBA16F:
case GL_RGBA32F:
cl_format->image_channel_order = CL_RGBA;
break;
case GL_BGRA:
cl_format->image_channel_order = CL_BGRA;
break;
default:
ret = -1;
goto error;
}
switch (tex_format) {
case GL_RGBA8:
case GL_RGBA:
case GL_BGRA:
cl_format->image_channel_data_type = CL_UNORM_INT8;
break;
case GL_RGBA16:
cl_format->image_channel_data_type = CL_UNORM_INT16;
break;
case GL_RGBA8I:
cl_format->image_channel_data_type = CL_SIGNED_INT8;
break;
case GL_RGBA16I:
cl_format->image_channel_data_type = CL_SIGNED_INT16;
break;
case GL_RGBA32I:
cl_format->image_channel_data_type = CL_SIGNED_INT32;
break;
case GL_RGBA8UI:
cl_format->image_channel_data_type = CL_UNSIGNED_INT8;
break;
case GL_RGBA16UI:
cl_format->image_channel_data_type = CL_UNSIGNED_INT16;
break;
case GL_RGBA32UI:
cl_format->image_channel_data_type = CL_UNSIGNED_INT32;
break;
case GL_RGBA16F:
cl_format->image_channel_data_type = CL_HALF_FLOAT;
break;
case GL_RGBA32F:
cl_format->image_channel_order = CL_FLOAT;
break;
default:
ret = -1;
goto error;
}
error:
return ret;
}
static int
get_mem_type_from_target(GLenum texture_target, cl_mem_object_type *type)
{
switch(texture_target) {
case GL_TEXTURE_1D: *type = CL_MEM_OBJECT_IMAGE1D; break;
case GL_TEXTURE_2D: *type = CL_MEM_OBJECT_IMAGE2D; break;
case GL_TEXTURE_3D: *type = CL_MEM_OBJECT_IMAGE3D; break;
case GL_TEXTURE_1D_ARRAY: *type = CL_MEM_OBJECT_IMAGE1D_ARRAY; break;
case GL_TEXTURE_2D_ARRAY: *type = CL_MEM_OBJECT_IMAGE2D_ARRAY; break;
default:
return -1;
}
return CL_SUCCESS;
}
static cl_buffer
intel_alloc_buffer_from_texture_egl(cl_context ctx, unsigned int target,
int miplevel, unsigned int texture,
struct _cl_mem_image *image)
{
cl_buffer bo = (cl_buffer) NULL;
struct _intel_dri_share_image_region region;
unsigned int bpp, intel_fmt;
cl_image_format cl_format;
EGLBoolean ret;
EGLint attrib_list[] = { EGL_GL_TEXTURE_ID_MESA, texture,
EGL_GL_TEXTURE_LEVEL_MESA, miplevel,
EGL_GL_TEXTURE_TARGET_MESA, target,
EGL_NONE};
ret = eglAcquireResourceMESA(EGL_DISP(ctx), EGL_CTX(ctx),
EGL_GL_TEXTURE_MESA,
&attrib_list[0], ®ion);
if (!ret)
goto out;
bo = (cl_buffer)intel_driver_share_buffer((intel_driver_t *)ctx->drv, "rendering buffer", region.name);
if (bo == NULL) {
eglReleaseResourceMESA(EGL_DISP(ctx), EGL_CTX(ctx), EGL_GL_TEXTURE_MESA, &attrib_list[0]);
goto out;
}
region.tiling = get_cl_tiling(region.tiling);
if (cl_get_clformat_from_texture(region.gl_format, &cl_format) != 0)
goto error;
intel_fmt = cl_image_get_intel_format(&cl_format);
if (intel_fmt == INTEL_UNSUPPORTED_FORMAT)
goto error;
cl_image_byte_per_pixel(&cl_format, &bpp);
cl_mem_object_type image_type;
if (get_mem_type_from_target(target, &image_type) != 0)
goto error;
cl_mem_image_init(image, region.w, region.h,
image_type, region.depth, cl_format,
intel_fmt, bpp, region.row_pitch,
region.slice_pitch, region.tiling,
region.tile_x, region.tile_y, region.offset);
out:
return bo;
error:
cl_buffer_unreference(bo);
eglReleaseResourceMESA(EGL_DISP(ctx), EGL_CTX(ctx), EGL_GL_TEXTURE_MESA, &attrib_list[0]);
return NULL;
}
static cl_buffer
intel_alloc_buffer_from_texture(cl_context ctx, unsigned int target,
int miplevel, unsigned int texture,
struct _cl_mem_image *image)
{
if (IS_EGL_CONTEXT(ctx))
return intel_alloc_buffer_from_texture_egl(ctx, target, miplevel, texture, image);
return NULL;
}
static int
intel_release_buffer_from_texture(cl_context ctx, unsigned int target,
int miplevel, unsigned int texture)
{
if (IS_EGL_CONTEXT(ctx)) {
EGLint attrib_list[] = { EGL_GL_TEXTURE_ID_MESA, texture,
EGL_GL_TEXTURE_LEVEL_MESA, miplevel,
EGL_GL_TEXTURE_TARGET_MESA, target,
EGL_NONE};
eglReleaseResourceMESA(EGL_DISP(ctx), EGL_CTX(ctx), EGL_GL_TEXTURE_MESA, &attrib_list[0]);
return CL_SUCCESS;
}
return -1;
}
#endif
cl_buffer intel_share_buffer_from_libva(cl_context ctx,
unsigned int bo_name,
size_t *sz)
{
drm_intel_bo *intel_bo;
intel_bo = intel_driver_share_buffer((intel_driver_t *)ctx->drv, "shared from libva", bo_name);
if (sz)
*sz = intel_bo->size;
return (cl_buffer)intel_bo;
}
cl_buffer intel_share_image_from_libva(cl_context ctx,
unsigned int bo_name,
struct _cl_mem_image *image)
{
drm_intel_bo *intel_bo;
uint32_t intel_tiling, intel_swizzle_mode;
intel_bo = intel_driver_share_buffer((intel_driver_t *)ctx->drv, "shared from libva", bo_name);
drm_intel_bo_get_tiling(intel_bo, &intel_tiling, &intel_swizzle_mode);
image->tiling = get_cl_tiling(intel_tiling);
return (cl_buffer)intel_bo;
}
static int32_t get_intel_tiling(cl_int tiling, uint32_t *intel_tiling)
{
switch (tiling) {
case CL_NO_TILE:
*intel_tiling = I915_TILING_NONE;
break;
case CL_TILE_X:
*intel_tiling = I915_TILING_X;
break;
case CL_TILE_Y:
*intel_tiling = I915_TILING_Y;
break;
default:
assert(0);
return -1;
}
return 0;
}
static int intel_buffer_set_tiling(cl_buffer bo,
cl_image_tiling_t tiling, size_t stride)
{
uint32_t intel_tiling;
int ret;
if (UNLIKELY((get_intel_tiling(tiling, &intel_tiling)) < 0))
return -1;
#ifndef NDEBUG
uint32_t required_tiling;
required_tiling = intel_tiling;
#endif
ret = drm_intel_bo_set_tiling((drm_intel_bo*)bo, &intel_tiling, stride);
assert(intel_tiling == required_tiling);
return ret;
}
LOCAL void
intel_setup_callbacks(void)
{
cl_driver_new = (cl_driver_new_cb *) cl_intel_driver_new;
cl_driver_delete = (cl_driver_delete_cb *) cl_intel_driver_delete;
cl_driver_get_ver = (cl_driver_get_ver_cb *) intel_driver_get_ver;
cl_driver_get_bufmgr = (cl_driver_get_bufmgr_cb *) intel_driver_get_bufmgr;
cl_driver_get_device_id = (cl_driver_get_device_id_cb *) intel_get_device_id;
cl_buffer_alloc = (cl_buffer_alloc_cb *) drm_intel_bo_alloc;
cl_buffer_set_tiling = (cl_buffer_set_tiling_cb *) intel_buffer_set_tiling;
#if defined(HAS_EGL)
cl_buffer_alloc_from_texture = (cl_buffer_alloc_from_texture_cb *) intel_alloc_buffer_from_texture;
cl_buffer_release_from_texture = (cl_buffer_release_from_texture_cb *) intel_release_buffer_from_texture;
intel_set_cl_gl_callbacks();
#endif
cl_buffer_get_buffer_from_libva = (cl_buffer_get_buffer_from_libva_cb *) intel_share_buffer_from_libva;
cl_buffer_get_image_from_libva = (cl_buffer_get_image_from_libva_cb *) intel_share_image_from_libva;
cl_buffer_reference = (cl_buffer_reference_cb *) drm_intel_bo_reference;
cl_buffer_unreference = (cl_buffer_unreference_cb *) drm_intel_bo_unreference;
cl_buffer_map = (cl_buffer_map_cb *) drm_intel_bo_map;
cl_buffer_unmap = (cl_buffer_unmap_cb *) drm_intel_bo_unmap;
cl_buffer_map_gtt = (cl_buffer_map_gtt_cb *) drm_intel_gem_bo_map_gtt;
cl_buffer_unmap_gtt = (cl_buffer_unmap_gtt_cb *) drm_intel_gem_bo_unmap_gtt;
cl_buffer_map_gtt_unsync = (cl_buffer_map_gtt_unsync_cb *) drm_intel_gem_bo_map_unsynchronized;
cl_buffer_get_virtual = (cl_buffer_get_virtual_cb *) drm_intel_bo_get_virtual;
cl_buffer_get_size = (cl_buffer_get_size_cb *) drm_intel_bo_get_size;
cl_buffer_pin = (cl_buffer_pin_cb *) drm_intel_bo_pin;
cl_buffer_unpin = (cl_buffer_unpin_cb *) drm_intel_bo_unpin;
cl_buffer_subdata = (cl_buffer_subdata_cb *) drm_intel_bo_subdata;
cl_buffer_wait_rendering = (cl_buffer_wait_rendering_cb *) drm_intel_bo_wait_rendering;
cl_buffer_get_fd = (cl_buffer_get_fd_cb *) drm_intel_bo_gem_export_to_prime;
intel_set_gpgpu_callbacks(intel_get_device_id());
}
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