AnyPS5

Commit Graph

Author	SHA1	Message	Date
Hussein Kadhim	c9e1fa0ce1	fix(shader): 32-bit flat atomics in the LDS aperture take the workgroup lock A flat_atomic_* whose address lands in the LDS aperture updated the dword without the lock, so it could lose updates against a ds_add_u64 or a 64-bit flat atomic on the same dwords. It takes the lock like the 32-bit ds atomics when the program has a 64-bit LDS atomic; programs without one emit the same SPIR-V as before.	2026-10-11 01:53:37 +03:00
Hussein Kadhim	34e4aaf133	fix(shader): LDS 32-bit atomics take the workgroup lock of the program's 64-bit LDS atomics The hardware serialises 32-bit and 64-bit LDS atomics on one address; the lock that makes the 64-bit forms atomic did not order 32-bit atomics, which lost increments between the two halves of a 64-bit update (#2297).	2026-10-11 01:53:36 +03:00

Author

SHA1

Message

Date

Hussein Kadhim

c9e1fa0ce1

fix(shader): 32-bit flat atomics in the LDS aperture take the workgroup lock

A flat_atomic_* whose address lands in the LDS aperture updated the dword without the lock, so it could lose updates against a ds_add_u64 or a 64-bit flat atomic on the same dwords. It takes the lock like the 32-bit ds atomics when the program has a 64-bit LDS atomic; programs without one emit the same SPIR-V as before.

2026-10-11 01:53:37 +03:00

Hussein Kadhim

34e4aaf133

fix(shader): LDS 32-bit atomics take the workgroup lock of the program's 64-bit LDS atomics

The hardware serialises 32-bit and 64-bit LDS atomics on one address; the lock that makes the 64-bit forms atomic did not order 32-bit atomics, which lost increments between the two halves of a 64-bit update (#2297).

2026-10-11 01:53:36 +03:00

2 Commits