[PATCH 014/165] drm/radeon: add IB and fence dispatch functions for CIK gfx (v7)
alexdeucher at gmail.com
alexdeucher at gmail.com
Wed Jun 26 06:21:34 PDT 2013
From: Alex Deucher <alexander.deucher at amd.com>
For gfx ring only. Compute is still todo.
v2: add documentation
v3: update to latest reset changes, integrate emit update patch.
v4: fix count on wait_reg_mem for HDP flush
v5: use old hdp flush method for fence
v6: set valid bit for IB
v7: cleanup for release
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/radeon/cik.c | 134 +++++++++++++++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/cikd.h | 120 +++++++++++++++++++++++++++++++++++-
2 files changed, 251 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 5712526..0b9c3c9 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -1493,6 +1493,140 @@ static void cik_gpu_init(struct radeon_device *rdev)
}
/*
+ * GPU scratch registers helpers function.
+ */
+/**
+ * cik_scratch_init - setup driver info for CP scratch regs
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Set up the number and offset of the CP scratch registers.
+ * NOTE: use of CP scratch registers is a legacy inferface and
+ * is not used by default on newer asics (r6xx+). On newer asics,
+ * memory buffers are used for fences rather than scratch regs.
+ */
+static void cik_scratch_init(struct radeon_device *rdev)
+{
+ int i;
+
+ rdev->scratch.num_reg = 7;
+ rdev->scratch.reg_base = SCRATCH_REG0;
+ for (i = 0; i < rdev->scratch.num_reg; i++) {
+ rdev->scratch.free[i] = true;
+ rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
+ }
+}
+
+/**
+ * cik_fence_ring_emit - emit a fence on the gfx ring
+ *
+ * @rdev: radeon_device pointer
+ * @fence: radeon fence object
+ *
+ * Emits a fence sequnce number on the gfx ring and flushes
+ * GPU caches.
+ */
+void cik_fence_ring_emit(struct radeon_device *rdev,
+ struct radeon_fence *fence)
+{
+ struct radeon_ring *ring = &rdev->ring[fence->ring];
+ u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
+
+ /* EVENT_WRITE_EOP - flush caches, send int */
+ radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
+ radeon_ring_write(ring, (EOP_TCL1_ACTION_EN |
+ EOP_TC_ACTION_EN |
+ EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) |
+ EVENT_INDEX(5)));
+ radeon_ring_write(ring, addr & 0xfffffffc);
+ radeon_ring_write(ring, (upper_32_bits(addr) & 0xffff) | DATA_SEL(1) | INT_SEL(2));
+ radeon_ring_write(ring, fence->seq);
+ radeon_ring_write(ring, 0);
+ /* HDP flush */
+ /* We should be using the new WAIT_REG_MEM special op packet here
+ * but it causes the CP to hang
+ */
+ radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
+ radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
+ WRITE_DATA_DST_SEL(0)));
+ radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2);
+ radeon_ring_write(ring, 0);
+ radeon_ring_write(ring, 0);
+}
+
+void cik_semaphore_ring_emit(struct radeon_device *rdev,
+ struct radeon_ring *ring,
+ struct radeon_semaphore *semaphore,
+ bool emit_wait)
+{
+ uint64_t addr = semaphore->gpu_addr;
+ unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
+
+ radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
+ radeon_ring_write(ring, addr & 0xffffffff);
+ radeon_ring_write(ring, (upper_32_bits(addr) & 0xffff) | sel);
+}
+
+/*
+ * IB stuff
+ */
+/**
+ * cik_ring_ib_execute - emit an IB (Indirect Buffer) on the gfx ring
+ *
+ * @rdev: radeon_device pointer
+ * @ib: radeon indirect buffer object
+ *
+ * Emits an DE (drawing engine) or CE (constant engine) IB
+ * on the gfx ring. IBs are usually generated by userspace
+ * acceleration drivers and submitted to the kernel for
+ * sheduling on the ring. This function schedules the IB
+ * on the gfx ring for execution by the GPU.
+ */
+void cik_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+ struct radeon_ring *ring = &rdev->ring[ib->ring];
+ u32 header, control = INDIRECT_BUFFER_VALID;
+
+ if (ib->is_const_ib) {
+ /* set switch buffer packet before const IB */
+ radeon_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
+ radeon_ring_write(ring, 0);
+
+ header = PACKET3(PACKET3_INDIRECT_BUFFER_CONST, 2);
+ } else {
+ u32 next_rptr;
+ if (ring->rptr_save_reg) {
+ next_rptr = ring->wptr + 3 + 4;
+ radeon_ring_write(ring, PACKET3(PACKET3_SET_UCONFIG_REG, 1));
+ radeon_ring_write(ring, ((ring->rptr_save_reg -
+ PACKET3_SET_UCONFIG_REG_START) >> 2));
+ radeon_ring_write(ring, next_rptr);
+ } else if (rdev->wb.enabled) {
+ next_rptr = ring->wptr + 5 + 4;
+ radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
+ radeon_ring_write(ring, WRITE_DATA_DST_SEL(1));
+ radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
+ radeon_ring_write(ring, next_rptr);
+ }
+
+ header = PACKET3(PACKET3_INDIRECT_BUFFER, 2);
+ }
+
+ control |= ib->length_dw |
+ (ib->vm ? (ib->vm->id << 24) : 0);
+
+ radeon_ring_write(ring, header);
+ radeon_ring_write(ring,
+#ifdef __BIG_ENDIAN
+ (2 << 0) |
+#endif
+ (ib->gpu_addr & 0xFFFFFFFC));
+ radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFFFF);
+ radeon_ring_write(ring, control);
+}
+
+/*
* CP.
* On CIK, gfx and compute now have independant command processors.
*
diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index 0d1a298..783cf60 100644
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -188,6 +188,21 @@
#define HDP_REG_COHERENCY_FLUSH_CNTL 0x54A0
+#define GPU_HDP_FLUSH_REQ 0x54DC
+#define GPU_HDP_FLUSH_DONE 0x54E0
+#define CP0 (1 << 0)
+#define CP1 (1 << 1)
+#define CP2 (1 << 2)
+#define CP3 (1 << 3)
+#define CP4 (1 << 4)
+#define CP5 (1 << 5)
+#define CP6 (1 << 6)
+#define CP7 (1 << 7)
+#define CP8 (1 << 8)
+#define CP9 (1 << 9)
+#define SDMA0 (1 << 10)
+#define SDMA1 (1 << 11)
+
#define GRBM_CNTL 0x8000
#define GRBM_READ_TIMEOUT(x) ((x) << 0)
@@ -492,6 +507,49 @@
# define RASTER_CONFIG_RB_MAP_2 2
# define RASTER_CONFIG_RB_MAP_3 3
+#define VGT_EVENT_INITIATOR 0x28a90
+# define SAMPLE_STREAMOUTSTATS1 (1 << 0)
+# define SAMPLE_STREAMOUTSTATS2 (2 << 0)
+# define SAMPLE_STREAMOUTSTATS3 (3 << 0)
+# define CACHE_FLUSH_TS (4 << 0)
+# define CACHE_FLUSH (6 << 0)
+# define CS_PARTIAL_FLUSH (7 << 0)
+# define VGT_STREAMOUT_RESET (10 << 0)
+# define END_OF_PIPE_INCR_DE (11 << 0)
+# define END_OF_PIPE_IB_END (12 << 0)
+# define RST_PIX_CNT (13 << 0)
+# define VS_PARTIAL_FLUSH (15 << 0)
+# define PS_PARTIAL_FLUSH (16 << 0)
+# define CACHE_FLUSH_AND_INV_TS_EVENT (20 << 0)
+# define ZPASS_DONE (21 << 0)
+# define CACHE_FLUSH_AND_INV_EVENT (22 << 0)
+# define PERFCOUNTER_START (23 << 0)
+# define PERFCOUNTER_STOP (24 << 0)
+# define PIPELINESTAT_START (25 << 0)
+# define PIPELINESTAT_STOP (26 << 0)
+# define PERFCOUNTER_SAMPLE (27 << 0)
+# define SAMPLE_PIPELINESTAT (30 << 0)
+# define SO_VGT_STREAMOUT_FLUSH (31 << 0)
+# define SAMPLE_STREAMOUTSTATS (32 << 0)
+# define RESET_VTX_CNT (33 << 0)
+# define VGT_FLUSH (36 << 0)
+# define BOTTOM_OF_PIPE_TS (40 << 0)
+# define DB_CACHE_FLUSH_AND_INV (42 << 0)
+# define FLUSH_AND_INV_DB_DATA_TS (43 << 0)
+# define FLUSH_AND_INV_DB_META (44 << 0)
+# define FLUSH_AND_INV_CB_DATA_TS (45 << 0)
+# define FLUSH_AND_INV_CB_META (46 << 0)
+# define CS_DONE (47 << 0)
+# define PS_DONE (48 << 0)
+# define FLUSH_AND_INV_CB_PIXEL_DATA (49 << 0)
+# define THREAD_TRACE_START (51 << 0)
+# define THREAD_TRACE_STOP (52 << 0)
+# define THREAD_TRACE_FLUSH (54 << 0)
+# define THREAD_TRACE_FINISH (55 << 0)
+# define PIXEL_PIPE_STAT_CONTROL (56 << 0)
+# define PIXEL_PIPE_STAT_DUMP (57 << 0)
+# define PIXEL_PIPE_STAT_RESET (58 << 0)
+
#define SCRATCH_REG0 0x30100
#define SCRATCH_REG1 0x30104
#define SCRATCH_REG2 0x30108
@@ -508,6 +566,8 @@
#define CP_SEM_INCOMPLETE_TIMER_CNTL 0x301C8
+#define CP_WAIT_REG_MEM_TIMEOUT 0x301D0
+
#define GRBM_GFX_INDEX 0x30800
#define INSTANCE_INDEX(x) ((x) << 0)
#define SH_INDEX(x) ((x) << 8)
@@ -597,11 +657,63 @@
#define PACKET3_DRAW_INDEX_OFFSET_2 0x35
#define PACKET3_DRAW_PREAMBLE 0x36
#define PACKET3_WRITE_DATA 0x37
+#define WRITE_DATA_DST_SEL(x) ((x) << 8)
+ /* 0 - register
+ * 1 - memory (sync - via GRBM)
+ * 2 - gl2
+ * 3 - gds
+ * 4 - reserved
+ * 5 - memory (async - direct)
+ */
+#define WR_ONE_ADDR (1 << 16)
+#define WR_CONFIRM (1 << 20)
+#define WRITE_DATA_CACHE_POLICY(x) ((x) << 25)
+ /* 0 - LRU
+ * 1 - Stream
+ */
+#define WRITE_DATA_ENGINE_SEL(x) ((x) << 30)
+ /* 0 - me
+ * 1 - pfp
+ * 2 - ce
+ */
#define PACKET3_DRAW_INDEX_INDIRECT_MULTI 0x38
#define PACKET3_MEM_SEMAPHORE 0x39
+# define PACKET3_SEM_USE_MAILBOX (0x1 << 16)
+# define PACKET3_SEM_SEL_SIGNAL_TYPE (0x1 << 20) /* 0 = increment, 1 = write 1 */
+# define PACKET3_SEM_CLIENT_CODE ((x) << 24) /* 0 = CP, 1 = CB, 2 = DB */
+# define PACKET3_SEM_SEL_SIGNAL (0x6 << 29)
+# define PACKET3_SEM_SEL_WAIT (0x7 << 29)
#define PACKET3_COPY_DW 0x3B
#define PACKET3_WAIT_REG_MEM 0x3C
+#define WAIT_REG_MEM_FUNCTION(x) ((x) << 0)
+ /* 0 - always
+ * 1 - <
+ * 2 - <=
+ * 3 - ==
+ * 4 - !=
+ * 5 - >=
+ * 6 - >
+ */
+#define WAIT_REG_MEM_MEM_SPACE(x) ((x) << 4)
+ /* 0 - reg
+ * 1 - mem
+ */
+#define WAIT_REG_MEM_OPERATION(x) ((x) << 6)
+ /* 0 - wait_reg_mem
+ * 1 - wr_wait_wr_reg
+ */
+#define WAIT_REG_MEM_ENGINE(x) ((x) << 8)
+ /* 0 - me
+ * 1 - pfp
+ */
#define PACKET3_INDIRECT_BUFFER 0x3F
+#define INDIRECT_BUFFER_TCL2_VOLATILE (1 << 22)
+#define INDIRECT_BUFFER_VALID (1 << 23)
+#define INDIRECT_BUFFER_CACHE_POLICY(x) ((x) << 28)
+ /* 0 - LRU
+ * 1 - Stream
+ * 2 - Bypass
+ */
#define PACKET3_COPY_DATA 0x40
#define PACKET3_PFP_SYNC_ME 0x42
#define PACKET3_SURFACE_SYNC 0x43
@@ -646,12 +758,12 @@
#define EOP_TC_WB_ACTION_EN (1 << 15) /* L2 */
#define EOP_TCL1_ACTION_EN (1 << 16)
#define EOP_TC_ACTION_EN (1 << 17) /* L2 */
-#define CACHE_POLICY(x) ((x) << 25)
+#define EOP_CACHE_POLICY(x) ((x) << 25)
/* 0 - LRU
* 1 - Stream
* 2 - Bypass
*/
-#define TCL2_VOLATILE (1 << 27)
+#define EOP_TCL2_VOLATILE (1 << 27)
#define DATA_SEL(x) ((x) << 29)
/* 0 - discard
* 1 - send low 32bit data
@@ -693,6 +805,8 @@
#define PACKET3_SET_SH_REG_OFFSET 0x77
#define PACKET3_SET_QUEUE_REG 0x78
#define PACKET3_SET_UCONFIG_REG 0x79
+#define PACKET3_SET_UCONFIG_REG_START 0x00030000
+#define PACKET3_SET_UCONFIG_REG_END 0x00031000
#define PACKET3_SCRATCH_RAM_WRITE 0x7D
#define PACKET3_SCRATCH_RAM_READ 0x7E
#define PACKET3_LOAD_CONST_RAM 0x80
@@ -702,6 +816,6 @@
#define PACKET3_INCREMENT_DE_COUNTER 0x85
#define PACKET3_WAIT_ON_CE_COUNTER 0x86
#define PACKET3_WAIT_ON_DE_COUNTER_DIFF 0x88
-
+#define PACKET3_SWITCH_BUFFER 0x8B
#endif
--
1.7.7.5
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