[Intel-gfx] [PATCH i-g-t 1/2 v2] lib/ioctl_wrappers: Add gem_gtt_type exposing raw HAS_ALIASING_PPGTT param
Michał Winiarski
michal.winiarski at intel.com
Thu Jan 21 01:27:26 PST 2016
No functional changes.
While I'm here, let's also rename gem_uses_aliasing_ppgtt (since it's
being used to indicate if we are using ANY kind of ppgtt) and introduce
gem_uses_full_ppgtt to drop some unnecessary code from tests that were
previously calling getparam directly instead of using ioctl wrapper.
v2: drop gem_uses_full_48b_ppgtt since it's no longer used anywhere,
s/48b/64b (Chris)
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Michał Winiarski <michal.winiarski at intel.com>
---
lib/ioctl_wrappers.c | 45 +++++++++++++++++++++++++++++++++-------
lib/ioctl_wrappers.h | 4 +++-
tests/drv_hangman.c | 2 +-
tests/gem_bad_reloc.c | 11 +---------
tests/gem_ctx_thrash.c | 20 ++----------------
tests/gem_exec_parse.c | 2 +-
tests/gem_ppgtt.c | 20 ++----------------
tests/gem_storedw_batches_loop.c | 2 +-
tests/gem_storedw_loop.c | 2 +-
tests/pm_rps.c | 2 +-
tests/pm_sseu.c | 2 +-
11 files changed, 51 insertions(+), 61 deletions(-)
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index 0024898..b534b03 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -924,18 +924,18 @@ bool gem_bo_busy(int fd, uint32_t handle)
/* feature test helpers */
/**
- * gem_uses_aliasing_ppgtt:
+ * gem_gtt_type:
* @fd: open i915 drm file descriptor
*
- * Feature test macro to check whether the kernel internally uses ppgtt to
- * execute batches. The /aliasing/ in the function name is a bit a misnomer,
- * this driver parameter is also true when full ppgtt address spaces are
- * available since for batchbuffer construction only ppgtt or global gtt is
- * relevant.
+ * Feature test macro to check what type of gtt is being used by the kernel:
+ * 0 - global gtt
+ * 1 - aliasing ppgtt
+ * 2 - full ppgtt, limited to 32bit address space
+ * 3 - full ppgtt, 64bit address space
*
- * Returns: Whether batches are run through ppgtt.
+ * Returns: Type of gtt being used.
*/
-bool gem_uses_aliasing_ppgtt(int fd)
+int gem_gtt_type(int fd)
{
struct drm_i915_getparam gp;
int val = 0;
@@ -952,6 +952,35 @@ bool gem_uses_aliasing_ppgtt(int fd)
}
/**
+ * gem_uses_ppgtt:
+ * @fd: open i915 drm file descriptor
+ *
+ * Feature test macro to check whether the kernel internally uses ppgtt to
+ * execute batches. Note that this is also true when we're using full ppgtt.
+ *
+ * Returns: Whether batches are run through ppgtt.
+ */
+bool gem_uses_ppgtt(int fd)
+{
+ return gem_gtt_type(fd) > 0;
+}
+
+/**
+ * gem_uses_full_ppgtt:
+ * @fd: open i915 drm file descriptor
+ *
+ * Feature test macro to check whether the kernel internally uses full
+ * per-process gtt to execute batches. Note that this is also true when we're
+ * using full 64b ppgtt.
+ *
+ * Returns: Whether batches are run through full ppgtt.
+ */
+bool gem_uses_full_ppgtt(int fd)
+{
+ return gem_gtt_type(fd) > 1;
+}
+
+/**
* gem_available_fences:
* @fd: open i915 drm file descriptor
*
diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index 214ec78..a6bf700 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -125,7 +125,9 @@ bool gem_has_bsd(int fd);
bool gem_has_blt(int fd);
bool gem_has_vebox(int fd);
bool gem_has_bsd2(int fd);
-bool gem_uses_aliasing_ppgtt(int fd);
+int gem_gtt_type(int fd);
+bool gem_uses_ppgtt(int fd);
+bool gem_uses_full_ppgtt(int fd);
int gem_available_fences(int fd);
uint64_t gem_available_aperture_size(int fd);
uint64_t gem_aperture_size(int fd);
diff --git a/tests/drv_hangman.c b/tests/drv_hangman.c
index cd63b97..1498ddf 100644
--- a/tests/drv_hangman.c
+++ b/tests/drv_hangman.c
@@ -358,7 +358,7 @@ static bool uses_cmd_parser(int fd, int gen)
if (rc || parser_version == 0)
return false;
- if (!gem_uses_aliasing_ppgtt(fd))
+ if (!gem_uses_ppgtt(fd))
return false;
if (gen != 7)
diff --git a/tests/gem_bad_reloc.c b/tests/gem_bad_reloc.c
index e8701da..a9146e2 100644
--- a/tests/gem_bad_reloc.c
+++ b/tests/gem_bad_reloc.c
@@ -46,16 +46,7 @@ IGT_TEST_DESCRIPTION("Simulates SNA behaviour using negative self-relocations"
static uint64_t get_page_table_size(int fd)
{
- struct drm_i915_getparam gp;
- int val = 0;
-
- memset(&gp, 0, sizeof(gp));
- gp.param = 18; /* HAS_ALIASING_PPGTT */
- gp.value = &val;
-
- if (drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp))
- return 0;
- errno = 0;
+ int val = gem_gtt_type(fd);
switch (val) {
case 0:
diff --git a/tests/gem_ctx_thrash.c b/tests/gem_ctx_thrash.c
index acfa8f5..ff752b7 100644
--- a/tests/gem_ctx_thrash.c
+++ b/tests/gem_ctx_thrash.c
@@ -117,22 +117,6 @@ static void *thread(void *bufmgr)
return NULL;
}
-static int uses_ppgtt(int _fd)
-{
- struct drm_i915_getparam gp;
- int val = 0;
-
- memset(&gp, 0, sizeof(gp));
- gp.param = 18; /* HAS_ALIASING_PPGTT */
- gp.value = &val;
-
- if (drmIoctl(_fd, DRM_IOCTL_I915_GETPARAM, &gp))
- return 0;
-
- errno = 0;
- return val;
-}
-
static void
processes(void)
{
@@ -150,7 +134,7 @@ processes(void)
devid = intel_get_drm_devid(fd);
aperture = gem_aperture_size(fd);
- ppgtt_mode = uses_ppgtt(fd);
+ ppgtt_mode = gem_gtt_type(fd);
igt_require(ppgtt_mode);
render_copy = igt_get_render_copyfunc(devid);
@@ -252,7 +236,7 @@ threads(void)
devid = intel_get_drm_devid(fd);
aperture = gem_aperture_size(fd);
- ppgtt_mode = uses_ppgtt(fd);
+ ppgtt_mode = gem_gtt_type(fd);
igt_require(ppgtt_mode);
render_copy = igt_get_render_copyfunc(devid);
diff --git a/tests/gem_exec_parse.c b/tests/gem_exec_parse.c
index f7e7c86..77903ab 100644
--- a/tests/gem_exec_parse.c
+++ b/tests/gem_exec_parse.c
@@ -306,7 +306,7 @@ igt_main
rc = drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
igt_require(!rc && parser_version > 0);
- igt_require(gem_uses_aliasing_ppgtt(fd));
+ igt_require(gem_uses_ppgtt(fd));
handle = gem_create(fd, 4096);
diff --git a/tests/gem_ppgtt.c b/tests/gem_ppgtt.c
index 1cc69ed..78d5b48 100644
--- a/tests/gem_ppgtt.c
+++ b/tests/gem_ppgtt.c
@@ -44,22 +44,6 @@
#define HEIGHT 512
#define SIZE (HEIGHT*STRIDE)
-static bool uses_full_ppgtt(int fd)
-{
- struct drm_i915_getparam gp;
- int val = 0;
-
- memset(&gp, 0, sizeof(gp));
- gp.param = 18; /* HAS_ALIASING_PPGTT */
- gp.value = &val;
-
- if (drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp))
- return 0;
-
- errno = 0;
- return val > 1;
-}
-
static drm_intel_bo *create_bo(drm_intel_bufmgr *bufmgr,
uint32_t pixel)
{
@@ -240,7 +224,7 @@ static void flink_and_close(void)
uint64_t offset, offset_new;
fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd));
+ igt_require(gem_uses_full_ppgtt(fd));
bo = gem_create(fd, 4096);
name = gem_flink(fd, bo);
@@ -277,7 +261,7 @@ static void flink_and_exit(void)
const int retries = 50;
fd = drm_open_driver(DRIVER_INTEL);
- igt_require(uses_full_ppgtt(fd));
+ igt_require(gem_uses_full_ppgtt(fd));
bo = gem_create(fd, 4096);
name = gem_flink(fd, bo);
diff --git a/tests/gem_storedw_batches_loop.c b/tests/gem_storedw_batches_loop.c
index 29080d8..4b0249a 100644
--- a/tests/gem_storedw_batches_loop.c
+++ b/tests/gem_storedw_batches_loop.c
@@ -136,7 +136,7 @@ igt_main
fd = drm_open_driver(DRIVER_INTEL);
devid = intel_get_drm_devid(fd);
- has_ppgtt = gem_uses_aliasing_ppgtt(fd);
+ has_ppgtt = gem_uses_ppgtt(fd);
/* storedw needs gtt address on gen4+/g33 and snoopable memory.
* Strictly speaking we could implement this now ... */
diff --git a/tests/gem_storedw_loop.c b/tests/gem_storedw_loop.c
index 9727b97..9bb06f3 100644
--- a/tests/gem_storedw_loop.c
+++ b/tests/gem_storedw_loop.c
@@ -189,7 +189,7 @@ igt_main
"needs snoopable mem on pre-gen6\n");
/* This only works with ppgtt */
- igt_require(gem_uses_aliasing_ppgtt(fd));
+ igt_require(gem_uses_ppgtt(fd));
}
for (i = 0; i < ARRAY_SIZE(rings); i++) {
diff --git a/tests/pm_rps.c b/tests/pm_rps.c
index 9f752f8..72e47e7 100644
--- a/tests/pm_rps.c
+++ b/tests/pm_rps.c
@@ -288,7 +288,7 @@ static void load_helper_stop(void)
static void load_helper_init(void)
{
lh.devid = intel_get_drm_devid(drm_fd);
- lh.has_ppgtt = gem_uses_aliasing_ppgtt(drm_fd);
+ lh.has_ppgtt = gem_uses_ppgtt(drm_fd);
/* MI_STORE_DATA can only use GTT address on gen4+/g33 and needs
* snoopable mem on pre-gen6. Hence load-helper only works on gen6+, but
diff --git a/tests/pm_sseu.c b/tests/pm_sseu.c
index 6956e2a..3e60a5f 100644
--- a/tests/pm_sseu.c
+++ b/tests/pm_sseu.c
@@ -258,7 +258,7 @@ gem_init(void)
gem.gen = intel_gen(gem.devid);
igt_require_f(gem.gen >= 8,
"SSEU power gating only relevant for Gen8+");
- gem.has_ppgtt = gem_uses_aliasing_ppgtt(gem.drm_fd);
+ gem.has_ppgtt = gem_uses_ppgtt(gem.drm_fd);
gem.bufmgr = drm_intel_bufmgr_gem_init(gem.drm_fd, 4096);
igt_assert(gem.bufmgr);
--
2.5.0
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