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drm/radeon/kms/r6xx+: use new style fencing (v3)

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On r6xx+ a newer fence mechanism was implemented to replace
the old wait_until plus scratch regs setup.  A single EOP event
will flush the destination caches, write a fence value, and generate
an interrupt.  This is the recommended fence mechanism on r6xx+ asics.

This requires my previous writeback patch.

v2: fix typo that enabled event fence checking on all asics
rather than just r6xx+.

v3: properly enable EOP interrupts
Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=29972

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2010-09-04 05:04:34 -04:00
committed by Dave Airlie
parent 724c80e1d6
commit d0f8a854c3
6 changed files with 64 additions and 17 deletions
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21
drivers/gpu/drm/radeon/r600d.h
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@@ -474,6 +474,7 @@
#define VGT_VERTEX_REUSE_BLOCK_CNTL 0x28C58
#define VTX_REUSE_DEPTH_MASK 0x000000FF
#define VGT_EVENT_INITIATOR 0x28a90
# define CACHE_FLUSH_AND_INV_EVENT_TS (0x14 << 0)
# define CACHE_FLUSH_AND_INV_EVENT (0x16 << 0)
#define VM_CONTEXT0_CNTL 0x1410
@@ -775,7 +776,27 @@
#define PACKET3_ME_INITIALIZE_DEVICE_ID(x) ((x) << 16)
#define PACKET3_COND_WRITE 0x45
#define PACKET3_EVENT_WRITE 0x46
#define EVENT_TYPE(x) ((x) << 0)
#define EVENT_INDEX(x) ((x) << 8)
/* 0 - any non-TS event
* 1 - ZPASS_DONE
* 2 - SAMPLE_PIPELINESTAT
* 3 - SAMPLE_STREAMOUTSTAT*
* 4 - *S_PARTIAL_FLUSH
* 5 - TS events
*/
#define PACKET3_EVENT_WRITE_EOP 0x47
#define DATA_SEL(x) ((x) << 29)
/* 0 - discard
* 1 - send low 32bit data
* 2 - send 64bit data
* 3 - send 64bit counter value
*/
#define INT_SEL(x) ((x) << 24)
/* 0 - none
* 1 - interrupt only (DATA_SEL = 0)
* 2 - interrupt when data write is confirmed
*/
#define PACKET3_ONE_REG_WRITE 0x57
#define PACKET3_SET_CONFIG_REG 0x68
#define PACKET3_SET_CONFIG_REG_OFFSET 0x00008000