From: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com> To: igt-dev@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org Subject: [RFC PATCH i-g-t v4 0/4] Calculate softpin offsets from minimum GTT alignment Date: Thu, 31 Oct 2019 16:28:53 +0100 [thread overview] Message-ID: <20191031152857.17143-1-janusz.krzysztofik@linux.intel.com> (raw) Some tests assume 4kB page size while using softpin. That assumption may be wrong on future GEM backends with possibly larger minimum page sizes. As a result, those tests may either fail on softpin at offsets which are incorrectly aligned, may silently skip such incorrectly aligned addresses assuming them occupied by other users, or may always succeed when examining invalid use patterns. Provide a helper function that detects minimum page size and returns the size order. Use it in test which perform softpin to calculate offsets suitable for actually used backing store. Changelog: v2: Don't skip failing offsets only when on full PPGTT, - simplify the code by reversing the size->order conversion, - drop irrelevant modifications of requested object sizes. v3: Drop patch 1/2 "Don't filter out addresses when on PPGTT" - I don't know how to detect if the kernel is interfering with the user's GTT, - introduce patch 1/4 "lib: Move redundant local helpers to lib/", subsequent patch will use the helper, - introduce patch 2/4 "lib: Add GEM minimum page size helper", subsequent patches will use the new helper (inspired by Chris), - in former patch 2/2, now 3/4, initialize page size order with an actual minimum returned by the new helper (inspired by Chris), - add a new fix for gem_ctx_shared test (patch 4/4). v4: Rename the helper, use 'minimum GTT alignment' term across the changes (Chris), - update variable names accordingly, - use error numbers to distinguish between invalid offsets and addresses occupied by other users, then - simplify the helper code (Chris), - drop no longer required patch 1/4 "lib: Move redundant local helpers to lib/", - reintroduce former patch 1/2 as 1/4 "tests/gem_exec_reloc: Don't filter out invalid addresses" with the former not on full PPGTT requirement for skipping now replaced with error code checking. Janusz Krzysztofik (4): tests/gem_exec_reloc: Don't filter out invalid addresses lib: Add minimum GTT alignment helper tests/gem_exec_reloc: Calculate offsets from minimum GTT alignment tests/gem_ctx_shared: Align objects using minimum GTT alignment lib/ioctl_wrappers.c | 46 +++++++++++++++++++++++++++++++++++++ lib/ioctl_wrappers.h | 2 ++ tests/i915/gem_ctx_shared.c | 6 +++-- tests/i915/gem_exec_reloc.c | 22 ++++++++++++------ 4 files changed, 67 insertions(+), 9 deletions(-) -- 2.21.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
WARNING: multiple messages have this Message-ID (diff)
From: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com> To: igt-dev@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [RFC PATCH i-g-t v4 0/4] Calculate softpin offsets from minimum GTT alignment Date: Thu, 31 Oct 2019 16:28:53 +0100 [thread overview] Message-ID: <20191031152857.17143-1-janusz.krzysztofik@linux.intel.com> (raw) Message-ID: <20191031152853.uVMEssyNiqJmBZzwbQGjh7uOPBDgcItal9pHlnNgKss@z> (raw) Some tests assume 4kB page size while using softpin. That assumption may be wrong on future GEM backends with possibly larger minimum page sizes. As a result, those tests may either fail on softpin at offsets which are incorrectly aligned, may silently skip such incorrectly aligned addresses assuming them occupied by other users, or may always succeed when examining invalid use patterns. Provide a helper function that detects minimum page size and returns the size order. Use it in test which perform softpin to calculate offsets suitable for actually used backing store. Changelog: v2: Don't skip failing offsets only when on full PPGTT, - simplify the code by reversing the size->order conversion, - drop irrelevant modifications of requested object sizes. v3: Drop patch 1/2 "Don't filter out addresses when on PPGTT" - I don't know how to detect if the kernel is interfering with the user's GTT, - introduce patch 1/4 "lib: Move redundant local helpers to lib/", subsequent patch will use the helper, - introduce patch 2/4 "lib: Add GEM minimum page size helper", subsequent patches will use the new helper (inspired by Chris), - in former patch 2/2, now 3/4, initialize page size order with an actual minimum returned by the new helper (inspired by Chris), - add a new fix for gem_ctx_shared test (patch 4/4). v4: Rename the helper, use 'minimum GTT alignment' term across the changes (Chris), - update variable names accordingly, - use error numbers to distinguish between invalid offsets and addresses occupied by other users, then - simplify the helper code (Chris), - drop no longer required patch 1/4 "lib: Move redundant local helpers to lib/", - reintroduce former patch 1/2 as 1/4 "tests/gem_exec_reloc: Don't filter out invalid addresses" with the former not on full PPGTT requirement for skipping now replaced with error code checking. Janusz Krzysztofik (4): tests/gem_exec_reloc: Don't filter out invalid addresses lib: Add minimum GTT alignment helper tests/gem_exec_reloc: Calculate offsets from minimum GTT alignment tests/gem_ctx_shared: Align objects using minimum GTT alignment lib/ioctl_wrappers.c | 46 +++++++++++++++++++++++++++++++++++++ lib/ioctl_wrappers.h | 2 ++ tests/i915/gem_ctx_shared.c | 6 +++-- tests/i915/gem_exec_reloc.c | 22 ++++++++++++------ 4 files changed, 67 insertions(+), 9 deletions(-) -- 2.21.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next reply other threads:[~2019-10-31 15:28 UTC|newest] Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-10-31 15:28 Janusz Krzysztofik [this message] 2019-10-31 15:28 ` [Intel-gfx] [RFC PATCH i-g-t v4 0/4] Calculate softpin offsets from minimum GTT alignment Janusz Krzysztofik 2019-10-31 15:28 ` [RFC PATCH i-g-t v4 1/4] tests/gem_exec_reloc: Don't filter out invalid addresses Janusz Krzysztofik 2019-10-31 15:28 ` [Intel-gfx] " Janusz Krzysztofik 2019-10-31 16:59 ` Vanshidhar Konda 2019-10-31 16:59 ` [Intel-gfx] " Vanshidhar Konda 2019-11-04 9:16 ` Janusz Krzysztofik 2019-11-04 9:16 ` [Intel-gfx] " Janusz Krzysztofik 2019-11-01 10:02 ` Chris Wilson 2019-11-01 10:02 ` [igt-dev] " Chris Wilson 2019-11-01 10:02 ` [Intel-gfx] " Chris Wilson 2019-11-04 9:13 ` Janusz Krzysztofik 2019-11-04 9:13 ` [Intel-gfx] " Janusz Krzysztofik 2019-11-04 9:17 ` Chris Wilson 2019-11-04 9:17 ` [igt-dev] " Chris Wilson 2019-11-04 9:17 ` [Intel-gfx] " Chris Wilson 2019-10-31 15:28 ` [RFC PATCH i-g-t v4 2/4] lib: Add minimum GTT alignment helper Janusz Krzysztofik 2019-10-31 15:28 ` [Intel-gfx] " Janusz Krzysztofik 2019-10-31 16:58 ` Vanshidhar Konda 2019-10-31 16:58 ` [Intel-gfx] " Vanshidhar Konda 2019-11-04 14:40 ` Janusz Krzysztofik 2019-11-04 14:40 ` [Intel-gfx] " Janusz Krzysztofik 2019-11-01 10:08 ` Chris Wilson 2019-11-01 10:08 ` [igt-dev] " Chris Wilson 2019-11-01 10:08 ` [Intel-gfx] " Chris Wilson 2019-11-04 9:23 ` Janusz Krzysztofik 2019-11-04 9:23 ` [Intel-gfx] " Janusz Krzysztofik 2019-11-04 9:28 ` Chris Wilson 2019-11-04 9:28 ` [Intel-gfx] " Chris Wilson 2019-11-04 10:26 ` Janusz Krzysztofik 2019-11-04 10:26 ` [Intel-gfx] " Janusz Krzysztofik 2019-10-31 15:28 ` [RFC PATCH i-g-t v4 3/4] tests/gem_exec_reloc: Calculate offsets from minimum GTT alignment Janusz Krzysztofik 2019-10-31 15:28 ` [Intel-gfx] " Janusz Krzysztofik 2019-11-01 10:11 ` Chris Wilson 2019-11-01 10:11 ` [igt-dev] " Chris Wilson 2019-11-01 10:11 ` [Intel-gfx] " Chris Wilson 2019-10-31 15:28 ` [RFC PATCH i-g-t v4 4/4] tests/gem_ctx_shared: Align objects using " Janusz Krzysztofik 2019-10-31 15:28 ` [Intel-gfx] " Janusz Krzysztofik 2019-10-31 17:00 ` Vanshidhar Konda 2019-10-31 17:00 ` [Intel-gfx] " Vanshidhar Konda 2019-11-01 9:42 ` Chris Wilson 2019-11-01 9:42 ` [Intel-gfx] " Chris Wilson 2019-11-01 10:11 ` Chris Wilson 2019-11-01 10:11 ` [igt-dev] " Chris Wilson 2019-11-01 10:11 ` [Intel-gfx] " Chris Wilson 2019-11-04 9:39 ` Janusz Krzysztofik 2019-11-04 9:39 ` [Intel-gfx] " Janusz Krzysztofik 2019-11-04 9:47 ` Chris Wilson 2019-11-04 9:47 ` [igt-dev] " Chris Wilson 2019-11-04 9:47 ` [Intel-gfx] " Chris Wilson 2019-10-31 16:47 ` [igt-dev] ✓ Fi.CI.BAT: success for Calculate softpin offsets from " Patchwork 2019-11-01 19:09 ` [igt-dev] ✓ Fi.CI.IGT: " Patchwork
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