On 10/16/20 12:43 PM, Maarten Lankhorst wrote:
As soon as we install fences, we should stop allocating memory
in order to prevent any potential deadlocks.
This is required later on, when we start adding support for
dma-fence annotations.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Comment below, but we should probably fix that up afterwards.
Reviewed-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
---
.../gpu/drm/i915/gem/i915_gem_execbuffer.c | 24 ++++++++++++++-----
drivers/gpu/drm/i915/i915_active.c | 20 ++++++++--------
drivers/gpu/drm/i915/i915_vma.c | 8 ++++---
drivers/gpu/drm/i915/i915_vma.h | 3 +++
4 files changed, 36 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 0f5efced0b87..9a44d9a6b5ed 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -49,11 +49,12 @@ enum {
#define DBG_FORCE_RELOC 0 /* choose one of the above! */
};
-#define __EXEC_OBJECT_HAS_PIN BIT(31)
-#define __EXEC_OBJECT_HAS_FENCE BIT(30)
-#define __EXEC_OBJECT_NEEDS_MAP BIT(29)
-#define __EXEC_OBJECT_NEEDS_BIAS BIT(28)
-#define __EXEC_OBJECT_INTERNAL_FLAGS (~0u << 28) /* all of the above */
+/* __EXEC_OBJECT_NO_RESERVE is BIT(31), defined in i915_vma.h */
Ugh. We should probably move these flags to a separate header if this is
needed.
Since the uapi appears to allow 64 bits for EXEC flags, looks like a
general ovehaul is needed at some point.
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