@@ -48,6 +48,7 @@
</chapter>
<chapter>
<title>igt/i915 API Reference</title>
+ <xi:include href="xml/gem_context.xml"/>
<xi:include href="xml/gem_scheduler.xml"/>
</chapter>
<xi:include href="xml/igt_test_programs.xml"/>
@@ -3,6 +3,8 @@ lib_source_list = \
drmtest.c \
drmtest.h \
i830_reg.h \
+ i915/gem_context.c \
+ i915/gem_context.h \
i915/gem_scheduler.c \
i915/gem_scheduler.h \
i915_3d.h \
new file mode 100644
@@ -0,0 +1,199 @@
+/*
+ * Copyright © 2017 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.
+ */
+
+#include <errno.h>
+#include <string.h>
+
+#include "ioctl_wrappers.h"
+#include "drmtest.h"
+
+#include "i915/gem_context.h"
+
+/**
+ * SECTION:gem_context
+ * @short_description: Helpers for dealing with contexts
+ * @title: GEM Context
+ *
+ * This helper library contains functions used for handling gem contexts.
+ * Conceptually, gem contexts are similar to their CPU counterparts, in that
+ * they are a mix of software and hardware features allowing to isolate some
+ * aspects of task execution. Initially it was just a matter of maintaining
+ * separate state for each context, but more features were added, some
+ * improving contexts isolation (per-context address space), some are just
+ * software features improving submission model (context priority).
+ */
+
+/**
+ * gem_context_create:
+ * @fd: open i915 drm file descriptor
+ *
+ * This wraps the CONTEXT_CREATE ioctl, which is used to allocate a new
+ * context. Note that similarly to gem_set_caching() this wrapper skips on
+ * kernels and platforms where context support is not available.
+ *
+ * Returns: The id of the allocated context.
+ */
+uint32_t gem_context_create(int fd)
+{
+ struct drm_i915_gem_context_create create;
+
+ memset(&create, 0, sizeof(create));
+ if (igt_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create)) {
+ int err = -errno;
+ igt_skip_on(err == -ENODEV || errno == -EINVAL);
+ igt_assert_eq(err, 0);
+ }
+ igt_assert(create.ctx_id != 0);
+ errno = 0;
+
+ return create.ctx_id;
+}
+
+int __gem_context_destroy(int fd, uint32_t ctx_id)
+{
+ struct drm_i915_gem_context_destroy destroy;
+ int ret;
+
+ memset(&destroy, 0, sizeof(destroy));
+ destroy.ctx_id = ctx_id;
+
+ ret = igt_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, &destroy);
+ if (ret)
+ return -errno;
+ return 0;
+}
+
+/**
+ * gem_context_destroy:
+ * @fd: open i915 drm file descriptor
+ * @ctx_id: i915 context id
+ *
+ * This wraps the CONTEXT_DESTROY ioctl, which is used to free a context.
+ */
+void gem_context_destroy(int fd, uint32_t ctx_id)
+{
+ struct drm_i915_gem_context_destroy destroy;
+
+ memset(&destroy, 0, sizeof(destroy));
+ destroy.ctx_id = ctx_id;
+
+ do_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, &destroy);
+}
+
+int __gem_context_get_param(int fd, struct local_i915_gem_context_param *p)
+{
+#define LOCAL_I915_GEM_CONTEXT_GETPARAM 0x34
+#define LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_CONTEXT_GETPARAM, struct local_i915_gem_context_param)
+ if (igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, p))
+ return -errno;
+
+ errno = 0;
+ return 0;
+}
+
+/**
+ * gem_context_get_param:
+ * @fd: open i915 drm file descriptor
+ * @p: i915 context parameter
+ *
+ * This wraps the CONTEXT_GET_PARAM ioctl, which is used to get a context
+ * parameter.
+ */
+void gem_context_get_param(int fd, struct local_i915_gem_context_param *p)
+{
+ igt_assert(__gem_context_get_param(fd, p) == 0);
+}
+
+
+int __gem_context_set_param(int fd, struct local_i915_gem_context_param *p)
+{
+#define LOCAL_I915_GEM_CONTEXT_SETPARAM 0x35
+#define LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_CONTEXT_SETPARAM, struct local_i915_gem_context_param)
+ if (igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM, p))
+ return -errno;
+
+ errno = 0;
+ return 0;
+}
+/**
+ * gem_context_set_param:
+ * @fd: open i915 drm file descriptor
+ * @p: i915 context parameter
+ *
+ * This wraps the CONTEXT_SET_PARAM ioctl, which is used to set a context
+ * parameter.
+ */
+void gem_context_set_param(int fd, struct local_i915_gem_context_param *p)
+{
+ igt_assert(__gem_context_set_param(fd, p) == 0);
+}
+
+/**
+ * gem_context_require_param:
+ * @fd: open i915 drm file descriptor
+ * @param: i915 context parameter
+ *
+ * Feature test macro to query whether context parameter support for @param
+ * is available. Automatically skips through igt_require() if not.
+ */
+void gem_context_require_param(int fd, uint64_t param)
+{
+ struct local_i915_gem_context_param p;
+
+ p.context = 0;
+ p.param = param;
+ p.value = 0;
+ p.size = 0;
+
+ igt_require(igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0);
+}
+
+void gem_context_require_bannable(int fd)
+{
+ static int has_ban_period = -1;
+ static int has_bannable = -1;
+
+ if (has_bannable < 0) {
+ struct local_i915_gem_context_param p;
+
+ p.context = 0;
+ p.param = LOCAL_CONTEXT_PARAM_BANNABLE;
+ p.value = 0;
+ p.size = 0;
+
+ has_bannable = igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0;
+ }
+
+ if (has_ban_period < 0) {
+ struct local_i915_gem_context_param p;
+
+ p.context = 0;
+ p.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
+ p.value = 0;
+ p.size = 0;
+
+ has_ban_period = igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0;
+ }
+
+ igt_require(has_ban_period || has_bannable);
+}
new file mode 100644
@@ -0,0 +1,48 @@
+/*
+ * Copyright © 2017 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.
+ */
+
+#ifndef GEM_CONTEXT_H
+#define GEM_CONTEXT_H
+
+uint32_t gem_context_create(int fd);
+void gem_context_destroy(int fd, uint32_t ctx_id);
+int __gem_context_destroy(int fd, uint32_t ctx_id);
+struct local_i915_gem_context_param {
+ uint32_t context;
+ uint32_t size;
+ uint64_t param;
+#define LOCAL_CONTEXT_PARAM_BAN_PERIOD 0x1
+#define LOCAL_CONTEXT_PARAM_NO_ZEROMAP 0x2
+#define LOCAL_CONTEXT_PARAM_GTT_SIZE 0x3
+#define LOCAL_CONTEXT_PARAM_NO_ERROR_CAPTURE 0x4
+#define LOCAL_CONTEXT_PARAM_BANNABLE 0x5
+ uint64_t value;
+};
+void gem_context_require_bannable(int fd);
+void gem_context_require_param(int fd, uint64_t param);
+void gem_context_get_param(int fd, struct local_i915_gem_context_param *p);
+void gem_context_set_param(int fd, struct local_i915_gem_context_param *p);
+int __gem_context_set_param(int fd, struct local_i915_gem_context_param *p);
+int __gem_context_get_param(int fd, struct local_i915_gem_context_param *p);
+
+#endif /* GEM_CONTEXT_H */
@@ -894,161 +894,6 @@ int gem_madvise(int fd, uint32_t handle, int state)
return madv.retained;
}
-/**
- * gem_context_create:
- * @fd: open i915 drm file descriptor
- *
- * This wraps the CONTEXT_CREATE ioctl, which is used to allocate a new
- * context. Note that similarly to gem_set_caching() this wrapper skips on
- * kernels and platforms where context support is not available.
- *
- * Returns: The id of the allocated context.
- */
-uint32_t gem_context_create(int fd)
-{
- struct drm_i915_gem_context_create create;
-
- memset(&create, 0, sizeof(create));
- if (igt_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create)) {
- int err = -errno;
- igt_skip_on(err == -ENODEV || errno == -EINVAL);
- igt_assert_eq(err, 0);
- }
- igt_assert(create.ctx_id != 0);
- errno = 0;
-
- return create.ctx_id;
-}
-
-int __gem_context_destroy(int fd, uint32_t ctx_id)
-{
- struct drm_i915_gem_context_destroy destroy;
- int ret;
-
- memset(&destroy, 0, sizeof(destroy));
- destroy.ctx_id = ctx_id;
-
- ret = igt_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, &destroy);
- if (ret)
- return -errno;
- return 0;
-}
-
-/**
- * gem_context_destroy:
- * @fd: open i915 drm file descriptor
- * @ctx_id: i915 context id
- *
- * This wraps the CONTEXT_DESTROY ioctl, which is used to free a context.
- */
-void gem_context_destroy(int fd, uint32_t ctx_id)
-{
- struct drm_i915_gem_context_destroy destroy;
-
- memset(&destroy, 0, sizeof(destroy));
- destroy.ctx_id = ctx_id;
-
- do_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, &destroy);
-}
-
-int __gem_context_get_param(int fd, struct local_i915_gem_context_param *p)
-{
-#define LOCAL_I915_GEM_CONTEXT_GETPARAM 0x34
-#define LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_CONTEXT_GETPARAM, struct local_i915_gem_context_param)
- if (igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, p))
- return -errno;
-
- errno = 0;
- return 0;
-}
-
-/**
- * gem_context_get_param:
- * @fd: open i915 drm file descriptor
- * @p: i915 context parameter
- *
- * This wraps the CONTEXT_GET_PARAM ioctl, which is used to get a context
- * parameter.
- */
-void gem_context_get_param(int fd, struct local_i915_gem_context_param *p)
-{
- igt_assert(__gem_context_get_param(fd, p) == 0);
-}
-
-
-int __gem_context_set_param(int fd, struct local_i915_gem_context_param *p)
-{
-#define LOCAL_I915_GEM_CONTEXT_SETPARAM 0x35
-#define LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_CONTEXT_SETPARAM, struct local_i915_gem_context_param)
- if (igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM, p))
- return -errno;
-
- errno = 0;
- return 0;
-}
-/**
- * gem_context_set_param:
- * @fd: open i915 drm file descriptor
- * @p: i915 context parameter
- *
- * This wraps the CONTEXT_SET_PARAM ioctl, which is used to set a context
- * parameter.
- */
-void gem_context_set_param(int fd, struct local_i915_gem_context_param *p)
-{
- igt_assert(__gem_context_set_param(fd, p) == 0);
-}
-
-/**
- * gem_context_require_param:
- * @fd: open i915 drm file descriptor
- * @param: i915 context parameter
- *
- * Feature test macro to query whether context parameter support for @param
- * is available. Automatically skips through igt_require() if not.
- */
-void gem_context_require_param(int fd, uint64_t param)
-{
- struct local_i915_gem_context_param p;
-
- p.context = 0;
- p.param = param;
- p.value = 0;
- p.size = 0;
-
- igt_require(igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0);
-}
-
-void gem_context_require_bannable(int fd)
-{
- static int has_ban_period = -1;
- static int has_bannable = -1;
-
- if (has_bannable < 0) {
- struct local_i915_gem_context_param p;
-
- p.context = 0;
- p.param = LOCAL_CONTEXT_PARAM_BANNABLE;
- p.value = 0;
- p.size = 0;
-
- has_bannable = igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0;
- }
-
- if (has_ban_period < 0) {
- struct local_i915_gem_context_param p;
-
- p.context = 0;
- p.param = LOCAL_CONTEXT_PARAM_BAN_PERIOD;
- p.value = 0;
- p.size = 0;
-
- has_ban_period = igt_ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0;
- }
-
- igt_require(has_ban_period || has_bannable);
-}
-
int __gem_userptr(int fd, void *ptr, int size, int read_only, uint32_t flags, uint32_t *handle)
{
struct local_i915_gem_userptr userptr;
@@ -1455,7 +1300,7 @@ uint64_t gem_aperture_size(int fd)
memset(&p, 0, sizeof(p));
p.param = 0x3;
- if (ioctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, &p) == 0) {
+ if (__gem_context_get_param(fd, &p) == 0) {
aperture_size = p.value;
} else {
struct drm_i915_gem_get_aperture aperture;
@@ -36,6 +36,7 @@
#include <intel_bufmgr.h>
#include <i915_drm.h>
+#include "i915/gem_context.h"
#include "i915/gem_scheduler.h"
/**
@@ -121,27 +122,6 @@ int gem_munmap(void *ptr, uint64_t size);
int gem_madvise(int fd, uint32_t handle, int state);
-uint32_t gem_context_create(int fd);
-void gem_context_destroy(int fd, uint32_t ctx_id);
-int __gem_context_destroy(int fd, uint32_t ctx_id);
-struct local_i915_gem_context_param {
- uint32_t context;
- uint32_t size;
- uint64_t param;
-#define LOCAL_CONTEXT_PARAM_BAN_PERIOD 0x1
-#define LOCAL_CONTEXT_PARAM_NO_ZEROMAP 0x2
-#define LOCAL_CONTEXT_PARAM_GTT_SIZE 0x3
-#define LOCAL_CONTEXT_PARAM_NO_ERROR_CAPTURE 0x4
-#define LOCAL_CONTEXT_PARAM_BANNABLE 0x5
- uint64_t value;
-};
-void gem_context_require_bannable(int fd);
-void gem_context_require_param(int fd, uint64_t param);
-void gem_context_get_param(int fd, struct local_i915_gem_context_param *p);
-void gem_context_set_param(int fd, struct local_i915_gem_context_param *p);
-int __gem_context_set_param(int fd, struct local_i915_gem_context_param *p);
-int __gem_context_get_param(int fd, struct local_i915_gem_context_param *p);
-
#define LOCAL_I915_GEM_USERPTR 0x33
#define LOCAL_IOCTL_I915_GEM_USERPTR DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_USERPTR, struct local_i915_gem_userptr)
struct local_i915_gem_userptr {
@@ -2,6 +2,7 @@ lib_headers = [
'debug.h',
'drmtest.h',
'i830_reg.h',
+ 'i915/gem_context.h',
'i915/gem_scheduler.h',
'i915_3d.h',
'i915_reg.h',
@@ -49,6 +50,7 @@ lib_headers = [
lib_sources = [
'drmtest.c',
+ 'i915/gem_context.c',
'i915/gem_scheduler.c',
'igt_debugfs.c',
'igt_aux.c',
We'd like to make ioctl_wrappers a bit thinner, and we plan to add new helpers in the following patch. Let's move context related helpers before adding more content. Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Katarzyna Dec <katarzyna.dec@intel.com> Cc: Petri Latvala <petri.latvala@intel.com> --- .../intel-gpu-tools/intel-gpu-tools-docs.xml | 1 + lib/Makefile.sources | 2 + lib/i915/gem_context.c | 199 +++++++++++++++++++++ lib/i915/gem_context.h | 48 +++++ lib/ioctl_wrappers.c | 157 +--------------- lib/ioctl_wrappers.h | 22 +-- lib/meson.build | 2 + 7 files changed, 254 insertions(+), 177 deletions(-) create mode 100644 lib/i915/gem_context.c create mode 100644 lib/i915/gem_context.h