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-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_context.c2
-rw-r--r--drivers/gpu/drm/i915/gt/intel_lrc.c667
-rw-r--r--drivers/gpu/drm/i915/gt/intel_lrc_reg.h62
-rw-r--r--drivers/gpu/drm/i915/gt/selftest_lrc.c142
-rw-r--r--drivers/gpu/drm/i915/i915_perf.c35
-rw-r--r--drivers/gpu/drm/i915/i915_perf.h5
-rw-r--r--drivers/gpu/drm/i915/selftests/i915_live_selftests.h1
7 files changed, 648 insertions, 266 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 4a34c4f62065..f7ba0935ed67 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -1115,7 +1115,7 @@ static int gen8_emit_rpcs_config(struct i915_request *rq,
offset = i915_ggtt_offset(ce->state) +
LRC_STATE_PN * PAGE_SIZE +
- (CTX_R_PWR_CLK_STATE + 1) * 4;
+ CTX_R_PWR_CLK_STATE * 4;
*cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;
*cs++ = lower_32_bits(offset);
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 6cfdc0f9f2b9..caac091b3eb9 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -230,9 +230,10 @@ static int __execlists_context_alloc(struct intel_context *ce,
struct intel_engine_cs *engine);
static void execlists_init_reg_state(u32 *reg_state,
- struct intel_context *ce,
- struct intel_engine_cs *engine,
- struct intel_ring *ring);
+ const struct intel_context *ce,
+ const struct intel_engine_cs *engine,
+ const struct intel_ring *ring,
+ bool close);
static void mark_eio(struct i915_request *rq)
{
@@ -471,6 +472,411 @@ lrc_descriptor(struct intel_context *ce, struct intel_engine_cs *engine)
return desc;
}
+static u32 *set_offsets(u32 *regs,
+ const u8 *data,
+ const struct intel_engine_cs *engine)
+#define NOP(x) (BIT(7) | (x))
+#define LRI(count, flags) ((flags) << 6 | (count))
+#define POSTED BIT(0)
+#define REG(x) (((x) >> 2) | BUILD_BUG_ON_ZERO(x >= 0x200))
+#define REG16(x) \
+ (((x) >> 9) | BIT(7) | BUILD_BUG_ON_ZERO(x >= 0x10000)), \
+ (((x) >> 2) & 0x7f)
+#define END() 0
+{
+ const u32 base = engine->mmio_base;
+
+ while (*data) {
+ u8 count, flags;
+
+ if (*data & BIT(7)) { /* skip */
+ regs += *data++ & ~BIT(7);
+ continue;
+ }
+
+ count = *data & 0x3f;
+ flags = *data >> 6;
+ data++;
+
+ *regs = MI_LOAD_REGISTER_IMM(count);
+ if (flags & POSTED)
+ *regs |= MI_LRI_FORCE_POSTED;
+ if (INTEL_GEN(engine->i915) >= 11)
+ *regs |= MI_LRI_CS_MMIO;
+ regs++;
+
+ GEM_BUG_ON(!count);
+ do {
+ u32 offset = 0;
+ u8 v;
+
+ do {
+ v = *data++;
+ offset <<= 7;
+ offset |= v & ~BIT(7);
+ } while (v & BIT(7));
+
+ *regs = base + (offset << 2);
+ regs += 2;
+ } while (--count);
+ }
+
+ return regs;
+}
+
+static const u8 gen8_xcs_offsets[] = {
+ NOP(1),
+ LRI(11, 0),
+ REG16(0x244),
+ REG(0x034),
+ REG(0x030),
+ REG(0x038),
+ REG(0x03c),
+ REG(0x168),
+ REG(0x140),
+ REG(0x110),
+ REG(0x11c),
+ REG(0x114),
+ REG(0x118),
+
+ NOP(9),
+ LRI(9, 0),
+ REG16(0x3a8),
+ REG16(0x28c),
+ REG16(0x288),
+ REG16(0x284),
+ REG16(0x280),
+ REG16(0x27c),
+ REG16(0x278),
+ REG16(0x274),
+ REG16(0x270),
+
+ NOP(13),
+ LRI(2, 0),
+ REG16(0x200),
+ REG(0x028),
+
+ END(),
+};
+
+static const u8 gen9_xcs_offsets[] = {
+ NOP(1),
+ LRI(14, POSTED),
+ REG16(0x244),
+ REG(0x034),
+ REG(0x030),
+ REG(0x038),
+ REG(0x03c),
+ REG(0x168),
+ REG(0x140),
+ REG(0x110),
+ REG(0x11c),
+ REG(0x114),
+ REG(0x118),
+ REG(0x1c0),
+ REG(0x1c4),
+ REG(0x1c8),
+
+ NOP(3),
+ LRI(9, POSTED),
+ REG16(0x3a8),
+ REG16(0x28c),
+ REG16(0x288),
+ REG16(0x284),
+ REG16(0x280),
+ REG16(0x27c),
+ REG16(0x278),
+ REG16(0x274),
+ REG16(0x270),
+
+ NOP(13),
+ LRI(1, POSTED),
+ REG16(0x200),
+
+ NOP(13),
+ LRI(44, POSTED),
+ REG(0x028),
+ REG(0x09c),
+ REG(0x0c0),
+ REG(0x178),
+ REG(0x17c),
+ REG16(0x358),
+ REG(0x170),
+ REG(0x150),
+ REG(0x154),
+ REG(0x158),
+ REG16(0x41c),
+ REG16(0x600),
+ REG16(0x604),
+ REG16(0x608),
+ REG16(0x60c),
+ REG16(0x610),
+ REG16(0x614),
+ REG16(0x618),
+ REG16(0x61c),
+ REG16(0x620),
+ REG16(0x624),
+ REG16(0x628),
+ REG16(0x62c),
+ REG16(0x630),
+ REG16(0x634),
+ REG16(0x638),
+ REG16(0x63c),
+ REG16(0x640),
+ REG16(0x644),
+ REG16(0x648),
+ REG16(0x64c),
+ REG16(0x650),
+ REG16(0x654),
+ REG16(0x658),
+ REG16(0x65c),
+ REG16(0x660),
+ REG16(0x664),
+ REG16(0x668),
+ REG16(0x66c),
+ REG16(0x670),
+ REG16(0x674),
+ REG16(0x678),
+ REG16(0x67c),
+ REG(0x068),
+
+ END(),
+};
+
+static const u8 gen12_xcs_offsets[] = {
+ NOP(1),
+ LRI(13, POSTED),
+ REG16(0x244),
+ REG(0x034),
+ REG(0x030),
+ REG(0x038),
+ REG(0x03c),
+ REG(0x168),
+ REG(0x140),
+ REG(0x110),
+ REG(0x1c0),
+ REG(0x1c4),
+ REG(0x1c8),
+ REG(0x180),
+ REG16(0x2b4),
+
+ NOP(5),
+ LRI(9, POSTED),
+ REG16(0x3a8),
+ REG16(0x28c),
+ REG16(0x288),
+ REG16(0x284),
+ REG16(0x280),
+ REG16(0x27c),
+ REG16(0x278),
+ REG16(0x274),
+ REG16(0x270),
+
+ NOP(13),
+ LRI(2, POSTED),
+ REG16(0x200),
+ REG16(0x204),
+
+ NOP(11),
+ LRI(50, POSTED),
+ REG16(0x588),
+ REG16(0x588),
+ REG16(0x588),
+ REG16(0x588),
+ REG16(0x588),
+ REG16(0x588),
+ REG(0x028),
+ REG(0x09c),
+ REG(0x0c0),
+ REG(0x178),
+ REG(0x17c),
+ REG16(0x358),
+ REG(0x170),
+ REG(0x150),
+ REG(0x154),
+ REG(0x158),
+ REG16(0x41c),
+ REG16(0x600),
+ REG16(0x604),
+ REG16(0x608),
+ REG16(0x60c),
+ REG16(0x610),
+ REG16(0x614),
+ REG16(0x618),
+ REG16(0x61c),
+ REG16(0x620),
+ REG16(0x624),
+ REG16(0x628),
+ REG16(0x62c),
+ REG16(0x630),
+ REG16(0x634),
+ REG16(0x638),
+ REG16(0x63c),
+ REG16(0x640),
+ REG16(0x644),
+ REG16(0x648),
+ REG16(0x64c),
+ REG16(0x650),
+ REG16(0x654),
+ REG16(0x658),
+ REG16(0x65c),
+ REG16(0x660),
+ REG16(0x664),
+ REG16(0x668),
+ REG16(0x66c),
+ REG16(0x670),
+ REG16(0x674),
+ REG16(0x678),
+ REG16(0x67c),
+ REG(0x068),
+
+ END(),
+};
+
+static const u8 gen8_rcs_offsets[] = {
+ NOP(1),
+ LRI(14, POSTED),
+ REG16(0x244),
+ REG(0x034),
+ REG(0x030),
+ REG(0x038),
+ REG(0x03c),
+ REG(0x168),
+ REG(0x140),
+ REG(0x110),
+ REG(0x11c),
+ REG(0x114),
+ REG(0x118),
+ REG(0x1c0),
+ REG(0x1c4),
+ REG(0x1c8),
+
+ NOP(3),
+ LRI(9, POSTED),
+ REG16(0x3a8),
+ REG16(0x28c),
+ REG16(0x288),
+ REG16(0x284),
+ REG16(0x280),
+ REG16(0x27c),
+ REG16(0x278),
+ REG16(0x274),
+ REG16(0x270),
+
+ NOP(13),
+ LRI(1, 0),
+ REG(0x0c8),
+
+ END(),
+};
+
+static const u8 gen11_rcs_offsets[] = {
+ NOP(1),
+ LRI(15, POSTED),
+ REG16(0x244),
+ REG(0x034),
+ REG(0x030),
+ REG(0x038),
+ REG(0x03c),
+ REG(0x168),
+ REG(0x140),
+ REG(0x110),
+ REG(0x11c),
+ REG(0x114),
+ REG(0x118),
+ REG(0x1c0),
+ REG(0x1c4),
+ REG(0x1c8),
+ REG(0x180),
+
+ NOP(1),
+ LRI(9, POSTED),
+ REG16(0x3a8),
+ REG16(0x28c),
+ REG16(0x288),
+ REG16(0x284),
+ REG16(0x280),
+ REG16(0x27c),
+ REG16(0x278),
+ REG16(0x274),
+ REG16(0x270),
+
+ LRI(1, POSTED),
+ REG(0x1b0),
+
+ NOP(10),
+ LRI(1, 0),
+ REG(0x0c8),
+
+ END(),
+};
+
+static const u8 gen12_rcs_offsets[] = {
+ NOP(1),
+ LRI(13, POSTED),
+ REG16(0x244),
+ REG(0x034),
+ REG(0x030),
+ REG(0x038),
+ REG(0x03c),
+ REG(0x168),
+ REG(0x140),
+ REG(0x110),
+ REG(0x1c0),
+ REG(0x1c4),
+ REG(0x1c8),
+ REG(0x180),
+ REG16(0x2b4),
+
+ NOP(5),
+ LRI(9, POSTED),
+ REG16(0x3a8),
+ REG16(0x28c),
+ REG16(0x288),
+ REG16(0x284),
+ REG16(0x280),
+ REG16(0x27c),
+ REG16(0x278),
+ REG16(0x274),
+ REG16(0x270),
+
+ LRI(3, POSTED),
+ REG(0x1b0),
+ REG16(0x5a8),
+ REG16(0x5ac),
+
+ NOP(6),
+ LRI(1, 0),
+ REG(0x0c8),
+
+ END(),
+};
+
+#undef END
+#undef REG16
+#undef REG
+#undef LRI
+#undef NOP
+
+static const u8 *reg_offsets(const struct intel_engine_cs *engine)
+{
+ if (engine->class == RENDER_CLASS) {
+ if (INTEL_GEN(engine->i915) >= 12)
+ return gen12_rcs_offsets;
+ else if (INTEL_GEN(engine->i915) >= 11)
+ return gen11_rcs_offsets;
+ else
+ return gen8_rcs_offsets;
+ } else {
+ if (INTEL_GEN(engine->i915) >= 12)
+ return gen12_xcs_offsets;
+ else if (INTEL_GEN(engine->i915) >= 9)
+ return gen9_xcs_offsets;
+ else
+ return gen8_xcs_offsets;
+ }
+}
+
static void unwind_wa_tail(struct i915_request *rq)
{
rq->tail = intel_ring_wrap(rq->ring, rq->wa_tail - WA_TAIL_BYTES);
@@ -654,7 +1060,7 @@ static u64 execlists_update_context(const struct i915_request *rq)
struct intel_context *ce = rq->hw_context;
u64 desc;
- ce->lrc_reg_state[CTX_RING_TAIL + 1] =
+ ce->lrc_reg_state[CTX_RING_TAIL] =
intel_ring_set_tail(rq->ring, rq->tail);
/*
@@ -826,54 +1232,7 @@ static bool can_merge_rq(const struct i915_request *prev,
static void virtual_update_register_offsets(u32 *regs,
struct intel_engine_cs *engine)
{
- u32 base = engine->mmio_base;
-
- /* Refactor so that we only have one place that knows all the offsets! */
- GEM_WARN_ON(INTEL_GEN(engine->i915) >= 12);
-
- /* Must match execlists_init_reg_state()! */
-
- /* Common part */
- regs[CTX_CONTEXT_CONTROL] =
- i915_mmio_reg_offset(RING_CONTEXT_CONTROL(base));
- regs[CTX_RING_HEAD] = i915_mmio_reg_offset(RING_HEAD(base));
- regs[CTX_RING_TAIL] = i915_mmio_reg_offset(RING_TAIL(base));
- regs[CTX_RING_BUFFER_START] = i915_mmio_reg_offset(RING_START(base));
- regs[CTX_RING_BUFFER_CONTROL] = i915_mmio_reg_offset(RING_CTL(base));
-
- regs[CTX_BB_HEAD_U] = i915_mmio_reg_offset(RING_BBADDR_UDW(base));
- regs[CTX_BB_HEAD_L] = i915_mmio_reg_offset(RING_BBADDR(base));
- regs[CTX_BB_STATE] = i915_mmio_reg_offset(RING_BBSTATE(base));
-
- regs[CTX_SECOND_BB_HEAD_U] =
- i915_mmio_reg_offset(RING_SBBADDR_UDW(base));
- regs[CTX_SECOND_BB_HEAD_L] = i915_mmio_reg_offset(RING_SBBADDR(base));
- regs[CTX_SECOND_BB_STATE] = i915_mmio_reg_offset(RING_SBBSTATE(base));
-
- /* PPGTT part */
- regs[CTX_CTX_TIMESTAMP] =
- i915_mmio_reg_offset(RING_CTX_TIMESTAMP(base));
-
- regs[CTX_PDP3_UDW] = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(base, 3));
- regs[CTX_PDP3_LDW] = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(base, 3));
- regs[CTX_PDP2_UDW] = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(base, 2));
- regs[CTX_PDP2_LDW] = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(base, 2));
- regs[CTX_PDP1_UDW] = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(base, 1));
- regs[CTX_PDP1_LDW] = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(base, 1));
- regs[CTX_PDP0_UDW] = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(base, 0));
- regs[CTX_PDP0_LDW] = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(base, 0));
-
- if (engine->class == RENDER_CLASS) {
- regs[CTX_RCS_INDIRECT_CTX] =
- i915_mmio_reg_offset(RING_INDIRECT_CTX(base));
- regs[CTX_RCS_INDIRECT_CTX_OFFSET] =
- i915_mmio_reg_offset(RING_INDIRECT_CTX_OFFSET(base));
- regs[CTX_BB_PER_CTX_PTR] =
- i915_mmio_reg_offset(RING_BB_PER_CTX_PTR(base));
-
- regs[CTX_R_PWR_CLK_STATE] =
- i915_mmio_reg_offset(GEN8_R_PWR_CLK_STATE);
- }
+ set_offsets(regs, reg_offsets(engine), engine);
}
static bool virtual_matches(const struct virtual_engine *ve,
@@ -1738,8 +2097,8 @@ static void execlists_context_unpin(struct intel_context *ce)
}
static void
-__execlists_update_reg_state(struct intel_context *ce,
- struct intel_engine_cs *engine)
+__execlists_update_reg_state(const struct intel_context *ce,
+ const struct intel_engine_cs *engine)
{
struct intel_ring *ring = ce->ring;
u32 *regs = ce->lrc_reg_state;
@@ -1747,16 +2106,16 @@ __execlists_update_reg_state(struct intel_context *ce,
GEM_BUG_ON(!intel_ring_offset_valid(ring, ring->head));
GEM_BUG_ON(!intel_ring_offset_valid(ring, ring->tail));
- regs[CTX_RING_BUFFER_START + 1] = i915_ggtt_offset(ring->vma);
- regs[CTX_RING_HEAD + 1] = ring->head;
- regs[CTX_RING_TAIL + 1] = ring->tail;
+ regs[CTX_RING_BUFFER_START] = i915_ggtt_offset(ring->vma);
+ regs[CTX_RING_HEAD] = ring->head;
+ regs[CTX_RING_TAIL] = ring->tail;
/* RPCS */
if (engine->class == RENDER_CLASS) {
- regs[CTX_R_PWR_CLK_STATE + 1] =
+ regs[CTX_R_PWR_CLK_STATE] =
intel_sseu_make_rpcs(engine->i915, &ce->sseu);
- i915_oa_init_reg_state(engine, ce, regs);
+ i915_oa_init_reg_state(ce, engine);
}
}
@@ -2465,7 +2824,7 @@ static void __execlists_reset(struct intel_engine_cs *engine, bool stalled)
engine->pinned_default_state + LRC_STATE_PN * PAGE_SIZE,
engine->context_size - PAGE_SIZE);
}
- execlists_init_reg_state(regs, ce, engine, ce->ring);
+ execlists_init_reg_state(regs, ce, engine, ce->ring, false);
out_replay:
GEM_TRACE("%s replay {head:%04x, tail:%04x\n",
@@ -3243,7 +3602,7 @@ int intel_execlists_submission_init(struct intel_engine_cs *engine)
return 0;
}
-static u32 intel_lr_indirect_ctx_offset(struct intel_engine_cs *engine)
+static u32 intel_lr_indirect_ctx_offset(const struct intel_engine_cs *engine)
{
u32 indirect_ctx_offset;
@@ -3278,75 +3637,48 @@ static u32 intel_lr_indirect_ctx_offset(struct intel_engine_cs *engine)
static void init_common_reg_state(u32 * const regs,
- struct i915_ppgtt * const ppgtt,
- struct intel_engine_cs *engine,
- struct intel_ring *ring)
+ const struct intel_engine_cs *engine,
+ const struct intel_ring *ring)
{
- const u32 base = engine->mmio_base;
-
- CTX_REG(regs, CTX_CONTEXT_CONTROL, RING_CONTEXT_CONTROL(base),
+ regs[CTX_CONTEXT_CONTROL] =
_MASKED_BIT_DISABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT) |
- _MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH));
- if (INTEL_GEN(engine->i915) < 11) {
- regs[CTX_CONTEXT_CONTROL + 1] |=
+ _MASKED_BIT_ENABLE(CTX_CTRL_INHIBIT_SYN_CTX_SWITCH);
+ if (INTEL_GEN(engine->i915) < 11)
+ regs[CTX_CONTEXT_CONTROL] |=
_MASKED_BIT_DISABLE(CTX_CTRL_ENGINE_CTX_SAVE_INHIBIT |
CTX_CTRL_RS_CTX_ENABLE);
- }
- CTX_REG(regs, CTX_RING_HEAD, RING_HEAD(base), 0);
- CTX_REG(regs, CTX_RING_TAIL, RING_TAIL(base), 0);
- CTX_REG(regs, CTX_RING_BUFFER_START, RING_START(base), 0);
- CTX_REG(regs, CTX_RING_BUFFER_CONTROL, RING_CTL(base),
- RING_CTL_SIZE(ring->size) | RING_VALID);
- CTX_REG(regs, CTX_BB_HEAD_U, RING_BBADDR_UDW(base), 0);
- CTX_REG(regs, CTX_BB_HEAD_L, RING_BBADDR(base), 0);
- CTX_REG(regs, CTX_BB_STATE, RING_BBSTATE(base), RING_BB_PPGTT);
+
+ regs[CTX_RING_BUFFER_CONTROL] = RING_CTL_SIZE(ring->size) | RING_VALID;
+ regs[CTX_BB_STATE] = RING_BB_PPGTT;
}
static void init_wa_bb_reg_state(u32 * const regs,
- struct intel_engine_cs *engine,
+ const struct intel_engine_cs *engine,
u32 pos_bb_per_ctx)
{
- struct i915_ctx_workarounds * const wa_ctx = &engine->wa_ctx;
- const u32 base = engine->mmio_base;
- const u32 pos_indirect_ctx = pos_bb_per_ctx + 2;
- const u32 pos_indirect_ctx_offset = pos_indirect_ctx + 2;
+ const struct i915_ctx_workarounds * const wa_ctx = &engine->wa_ctx;
+
+ if (wa_ctx->per_ctx.size) {
+ const u32 ggtt_offset = i915_ggtt_offset(wa_ctx->vma);
+
+ regs[pos_bb_per_ctx] =
+ (ggtt_offset + wa_ctx->per_ctx.offset) | 0x01;
+ }
- CTX_REG(regs, pos_indirect_ctx, RING_INDIRECT_CTX(base), 0);
- CTX_REG(regs, pos_indirect_ctx_offset,
- RING_INDIRECT_CTX_OFFSET(base), 0);
if (wa_ctx->indirect_ctx.size) {
const u32 ggtt_offset = i915_ggtt_offset(wa_ctx->vma);
- regs[pos_indirect_ctx + 1] =
+ regs[pos_bb_per_ctx + 2] =
(ggtt_offset + wa_ctx->indirect_ctx.offset) |
(wa_ctx->indirect_ctx.size / CACHELINE_BYTES);
- regs[pos_indirect_ctx_offset + 1] =
+ regs[pos_bb_per_ctx + 4] =
intel_lr_indirect_ctx_offset(engine) << 6;
}
-
- CTX_REG(regs, pos_bb_per_ctx, RING_BB_PER_CTX_PTR(base), 0);
- if (wa_ctx->per_ctx.size) {
- const u32 ggtt_offset = i915_ggtt_offset(wa_ctx->vma);
-
- regs[pos_bb_per_ctx + 1] =
- (ggtt_offset + wa_ctx->per_ctx.offset) | 0x01;
- }
}
-static void init_ppgtt_reg_state(u32 *regs, u32 base,
- struct i915_ppgtt *ppgtt)
+static void init_ppgtt_reg_state(u32 *regs, const struct i915_ppgtt *ppgtt)
{
- /* PDP values well be assigned later if needed */
- CTX_REG(regs, CTX_PDP3_UDW, GEN8_RING_PDP_UDW(base, 3), 0);
- CTX_REG(regs, CTX_PDP3_LDW, GEN8_RING_PDP_LDW(base, 3), 0);
- CTX_REG(regs, CTX_PDP2_UDW, GEN8_RING_PDP_UDW(base, 2), 0);
- CTX_REG(regs, CTX_PDP2_LDW, GEN8_RING_PDP_LDW(base, 2), 0);
- CTX_REG(regs, CTX_PDP1_UDW, GEN8_RING_PDP_UDW(base, 1), 0);
- CTX_REG(regs, CTX_PDP1_LDW, GEN8_RING_PDP_LDW(base, 1), 0);
- CTX_REG(regs, CTX_PDP0_UDW, GEN8_RING_PDP_UDW(base, 0), 0);
- CTX_REG(regs, CTX_PDP0_LDW, GEN8_RING_PDP_LDW(base, 0), 0);
-
if (i915_vm_is_4lvl(&ppgtt->vm)) {
/* 64b PPGTT (48bit canonical)
* PDP0_DESCRIPTOR contains the base address to PML4 and
@@ -3369,91 +3701,11 @@ static struct i915_ppgtt *vm_alias(struct i915_address_space *vm)
return i915_vm_to_ppgtt(vm);
}
-static void gen8_init_reg_state(u32 * const regs,
- struct intel_context *ce,
- struct intel_engine_cs *engine,
- struct intel_ring *ring)
-{
- struct i915_ppgtt * const ppgtt = vm_alias(ce->vm);
- const bool rcs = engine->class == RENDER_CLASS;
- const u32 base = engine->mmio_base;
- const u32 lri_base =
- intel_engine_has_relative_mmio(engine) ? MI_LRI_CS_MMIO : 0;
-
- regs[CTX_LRI_HEADER_0] =
- MI_LOAD_REGISTER_IMM(rcs ? 14 : 11) |
- MI_LRI_FORCE_POSTED |
- lri_base;
-
- init_common_reg_state(regs, ppgtt, engine, ring);
- CTX_REG(regs, CTX_SECOND_BB_HEAD_U, RING_SBBADDR_UDW(base), 0);
- CTX_REG(regs, CTX_SECOND_BB_HEAD_L, RING_SBBADDR(base), 0);
- CTX_REG(regs, CTX_SECOND_BB_STATE, RING_SBBSTATE(base), 0);
- if (rcs)
- init_wa_bb_reg_state(regs, engine, CTX_BB_PER_CTX_PTR);
-
- regs[CTX_LRI_HEADER_1] =
- MI_LOAD_REGISTER_IMM(9) |
- MI_LRI_FORCE_POSTED |
- lri_base;
-
- CTX_REG(regs, CTX_CTX_TIMESTAMP, RING_CTX_TIMESTAMP(base), 0);
-
- init_ppgtt_reg_state(regs, base, ppgtt);
-
- if (rcs) {
- regs[CTX_LRI_HEADER_2] = MI_LOAD_REGISTER_IMM(1) | lri_base;
- CTX_REG(regs, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE, 0);
- }
-
- regs[CTX_END] = MI_BATCH_BUFFER_END;
- if (INTEL_GEN(engine->i915) >= 10)
- regs[CTX_END] |= BIT(0);
-}
-
-static void gen12_init_reg_state(u32 * const regs,
- struct intel_context *ce,
- struct intel_engine_cs *engine,
- struct intel_ring *ring)
-{
- struct i915_ppgtt * const ppgtt = i915_vm_to_ppgtt(ce->vm);
- const bool rcs = engine->class == RENDER_CLASS;
- const u32 base = engine->mmio_base;
- const u32 lri_base =
- intel_engine_has_relative_mmio(engine) ? MI_LRI_CS_MMIO : 0;
-
- regs[CTX_LRI_HEADER_0] =
- MI_LOAD_REGISTER_IMM(rcs ? 11 : 9) |
- MI_LRI_FORCE_POSTED |
- lri_base;
-
- init_common_reg_state(regs, ppgtt, engine, ring);
-
- /* We want ctx_ptr for all engines to be set */
- init_wa_bb_reg_state(regs, engine, GEN12_CTX_BB_PER_CTX_PTR);
-
- regs[CTX_LRI_HEADER_1] =
- MI_LOAD_REGISTER_IMM(9) |
- MI_LRI_FORCE_POSTED |
- lri_base;
-
- CTX_REG(regs, CTX_CTX_TIMESTAMP, RING_CTX_TIMESTAMP(base), 0);
-
- init_ppgtt_reg_state(regs, base, ppgtt);
-
- if (rcs) {
- regs[GEN12_CTX_LRI_HEADER_3] =
- MI_LOAD_REGISTER_IMM(1) | lri_base;
- CTX_REG(regs, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE, 0);
-
- /* TODO: oa_init_reg_state ? */
- }
-}
-
static void execlists_init_reg_state(u32 *regs,
- struct intel_context *ce,
- struct intel_engine_cs *engine,
- struct intel_ring *ring)
+ const struct intel_context *ce,
+ const struct intel_engine_cs *engine,
+ const struct intel_ring *ring,
+ bool close)
{
/*
* A context is actually a big batch buffer with several
@@ -3465,10 +3717,21 @@ static void execlists_init_reg_state(u32 *regs,
*
* Must keep consistent with virtual_update_register_offsets().
*/
- if (INTEL_GEN(engine->i915) >= 12)
- gen12_init_reg_state(regs, ce, engine, ring);
- else
- gen8_init_reg_state(regs, ce, engine, ring);
+ u32 *bbe = set_offsets(regs, reg_offsets(engine), engine);
+
+ if (close) { /* Close the batch; used mainly by live_lrc_layout() */
+ *bbe = MI_BATCH_BUFFER_END;
+ if (INTEL_GEN(engine->i915) >= 10)
+ *bbe |= BIT(0);
+ }
+
+ init_common_reg_state(regs, engine, ring);
+ init_ppgtt_reg_state(regs, vm_alias(ce->vm));
+
+ init_wa_bb_reg_state(regs, engine,
+ INTEL_GEN(engine->i915) >= 12 ?
+ GEN12_CTX_BB_PER_CTX_PTR :
+ CTX_BB_PER_CTX_PTR);
}
static int
@@ -3477,6 +3740,7 @@ populate_lr_context(struct intel_context *ce,
struct intel_engine_cs *engine,
struct intel_ring *ring)
{
+ bool inhibit = true;
void *vaddr;
u32 *regs;
int ret;
@@ -3508,14 +3772,15 @@ populate_lr_context(struct intel_context *ce,
memcpy(vaddr + start, defaults + start, engine->context_size);
i915_gem_object_unpin_map(engine->default_state);
+ inhibit = false;
}
/* The second page of the context object contains some fields which must
* be set up prior to the first execution. */
regs = vaddr + LRC_STATE_PN * PAGE_SIZE;
- execlists_init_reg_state(regs, ce, engine, ring);
- if (!engine->default_state)
- regs[CTX_CONTEXT_CONTROL + 1] |=
+ execlists_init_reg_state(regs, ce, engine, ring, inhibit);
+ if (inhibit)
+ regs[CTX_CONTEXT_CONTROL] |=
_MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT);
ret = 0;
@@ -4212,7 +4477,7 @@ void intel_lr_context_reset(struct intel_engine_cs *engine,
engine->pinned_default_state + LRC_STATE_PN * PAGE_SIZE,
engine->context_size - PAGE_SIZE);
}
- execlists_init_reg_state(regs, ce, engine, ce->ring);
+ execlists_init_reg_state(regs, ce, engine, ce->ring, false);
}
/* Rerun the request; its payload has been neutered (if guilty). */
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc_reg.h b/drivers/gpu/drm/i915/gt/intel_lrc_reg.h
index 7e773e74a3fe..06ab0276e10e 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc_reg.h
+++ b/drivers/gpu/drm/i915/gt/intel_lrc_reg.h
@@ -10,60 +10,40 @@
#include <linux/types.h>
/* GEN8 to GEN11 Reg State Context */
-#define CTX_LRI_HEADER_0 0x01
-#define CTX_CONTEXT_CONTROL 0x02
-#define CTX_RING_HEAD 0x04
-#define CTX_RING_TAIL 0x06
-#define CTX_RING_BUFFER_START 0x08
-#define CTX_RING_BUFFER_CONTROL 0x0a
-#define CTX_BB_HEAD_U 0x0c
-#define CTX_BB_HEAD_L 0x0e
-#define CTX_BB_STATE 0x10
-#define CTX_SECOND_BB_HEAD_U 0x12
-#define CTX_SECOND_BB_HEAD_L 0x14
-#define CTX_SECOND_BB_STATE 0x16
-#define CTX_BB_PER_CTX_PTR 0x18
-#define CTX_RCS_INDIRECT_CTX 0x1a
-#define CTX_RCS_INDIRECT_CTX_OFFSET 0x1c
-#define CTX_LRI_HEADER_1 0x21
-#define CTX_CTX_TIMESTAMP 0x22
-#define CTX_PDP3_UDW 0x24
-#define CTX_PDP3_LDW 0x26
-#define CTX_PDP2_UDW 0x28
-#define CTX_PDP2_LDW 0x2a
-#define CTX_PDP1_UDW 0x2c
-#define CTX_PDP1_LDW 0x2e
-#define CTX_PDP0_UDW 0x30
-#define CTX_PDP0_LDW 0x32
-#define CTX_LRI_HEADER_2 0x41
-#define CTX_R_PWR_CLK_STATE 0x42
-#define CTX_END 0x44
+#define CTX_CONTEXT_CONTROL (0x02 + 1)
+#define CTX_RING_HEAD (0x04 + 1)
+#define CTX_RING_TAIL (0x06 + 1)
+#define CTX_RING_BUFFER_START (0x08 + 1)
+#define CTX_RING_BUFFER_CONTROL (0x0a + 1)
+#define CTX_BB_STATE (0x10 + 1)
+#define CTX_BB_PER_CTX_PTR (0x18 + 1)
+#define CTX_PDP3_UDW (0x24 + 1)
+#define CTX_PDP3_LDW (0x26 + 1)
+#define CTX_PDP2_UDW (0x28 + 1)
+#define CTX_PDP2_LDW (0x2a + 1)
+#define CTX_PDP1_UDW (0x2c + 1)
+#define CTX_PDP1_LDW (0x2e + 1)
+#define CTX_PDP0_UDW (0x30 + 1)
+#define CTX_PDP0_LDW (0x32 + 1)
+#define CTX_R_PWR_CLK_STATE (0x42 + 1)
#define GEN9_CTX_RING_MI_MODE 0x54
/* GEN12+ Reg State Context */
-#define GEN12_CTX_BB_PER_CTX_PTR 0x12
-#define GEN12_CTX_LRI_HEADER_3 0x41
-
-#define CTX_REG(reg_state, pos, reg, val) do { \
- u32 *reg_state__ = (reg_state); \
- const u32 pos__ = (pos); \
- (reg_state__)[(pos__) + 0] = i915_mmio_reg_offset(reg); \
- (reg_state__)[(pos__) + 1] = (val); \
-} while (0)
+#define GEN12_CTX_BB_PER_CTX_PTR (0x12 + 1)
#define ASSIGN_CTX_PDP(ppgtt, reg_state, n) do { \
u32 *reg_state__ = (reg_state); \
const u64 addr__ = i915_page_dir_dma_addr((ppgtt), (n)); \
- (reg_state__)[CTX_PDP ## n ## _UDW + 1] = upper_32_bits(addr__); \
- (reg_state__)[CTX_PDP ## n ## _LDW + 1] = lower_32_bits(addr__); \
+ (reg_state__)[CTX_PDP ## n ## _UDW] = upper_32_bits(addr__); \
+ (reg_state__)[CTX_PDP ## n ## _LDW] = lower_32_bits(addr__); \
} while (0)
#define ASSIGN_CTX_PML4(ppgtt, reg_state) do { \
u32 *reg_state__ = (reg_state); \
const u64 addr__ = px_dma(ppgtt->pd); \
- (reg_state__)[CTX_PDP0_UDW + 1] = upper_32_bits(addr__); \
- (reg_state__)[CTX_PDP0_LDW + 1] = lower_32_bits(addr__); \
+ (reg_state__)[CTX_PDP0_UDW] = upper_32_bits(addr__); \
+ (reg_state__)[CTX_PDP0_LDW] = lower_32_bits(addr__); \
} while (0)
#define GEN8_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x17
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 93a871bfd95d..22ea2e747064 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -2201,3 +2201,145 @@ int intel_execlists_live_selftests(struct drm_i915_private *i915)
return i915_live_subtests(tests, i915);
}
+
+static void hexdump(const void *buf, size_t len)
+{
+ const size_t rowsize = 8 * sizeof(u32);
+ const void *prev = NULL;
+ bool skip = false;
+ size_t pos;
+
+ for (pos = 0; pos < len; pos += rowsize) {
+ char line[128];
+
+ if (prev && !memcmp(prev, buf + pos, rowsize)) {
+ if (!skip) {
+ pr_info("*\n");
+ skip = true;
+ }
+ continue;
+ }
+
+ WARN_ON_ONCE(hex_dump_to_buffer(buf + pos, len - pos,
+ rowsize, sizeof(u32),
+ line, sizeof(line),
+ false) >= sizeof(line));
+ pr_info("[%04zx] %s\n", pos, line);
+
+ prev = buf + pos;
+ skip = false;
+ }
+}
+
+static int live_lrc_layout(void *arg)
+{
+ struct intel_gt *gt = arg;
+ struct intel_engine_cs *engine;
+ enum intel_engine_id id;
+ u32 *mem;
+ int err;
+
+ /*
+ * Check the registers offsets we use to create the initial reg state
+ * match the layout saved by HW.
+ */
+
+ mem = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!mem)
+ return -ENOMEM;
+
+ err = 0;
+ for_each_engine(engine, gt->i915, id) {
+ u32 *hw, *lrc;
+ int dw;
+
+ if (!engine->default_state)
+ continue;
+
+ hw = i915_gem_object_pin_map(engine->default_state,
+ I915_MAP_WB);
+ if (IS_ERR(hw)) {
+ err = PTR_ERR(hw);
+ break;
+ }
+ hw += LRC_STATE_PN * PAGE_SIZE / sizeof(*hw);
+
+ lrc = memset(mem, 0, PAGE_SIZE);
+ execlists_init_reg_state(lrc,
+ engine->kernel_context,
+ engine,
+ engine->kernel_context->ring,
+ true);
+
+ dw = 0;
+ do {
+ u32 lri = hw[dw];
+
+ if (lri == 0) {
+ dw++;
+ continue;
+ }
+
+ if ((lri & GENMASK(31, 23)) != MI_INSTR(0x22, 0)) {
+ pr_err("%s: Expected LRI command at dword %d, found %08x\n",
+ engine->name, dw, lri);
+ err = -EINVAL;
+ break;
+ }
+
+ if (lrc[dw] != lri) {
+ pr_err("%s: LRI command mismatch at dword %d, expected %08x found %08x\n",
+ engine->name, dw, lri, lrc[dw]);
+ err = -EINVAL;
+ break;
+ }
+
+ lri &= 0x7f;
+ lri++;
+ dw++;
+
+ while (lri) {
+ if (hw[dw] != lrc[dw]) {
+ pr_err("%s: Different registers found at dword %d, expected %x, found %x\n",
+ engine->name, dw, hw[dw], lrc[dw]);
+ err = -EINVAL;
+ break;
+ }
+
+ /*
+ * Skip over the actual register value as we
+ * expect that to differ.
+ */
+ dw += 2;
+ lri -= 2;
+ }
+ } while ((lrc[dw] & ~BIT(0)) != MI_BATCH_BUFFER_END);
+
+ if (err) {
+ pr_info("%s: HW register image:\n", engine->name);
+ hexdump(hw, PAGE_SIZE);
+
+ pr_info("%s: SW register image:\n", engine->name);
+ hexdump(lrc, PAGE_SIZE);
+ }
+
+ i915_gem_object_unpin_map(engine->default_state);
+ if (err)
+ break;
+ }
+
+ kfree(mem);
+ return err;
+}
+
+int intel_lrc_live_selftests(struct drm_i915_private *i915)
+{
+ static const struct i915_subtest tests[] = {
+ SUBTEST(live_lrc_layout),
+ };
+
+ if (!HAS_LOGICAL_RING_CONTEXTS(i915))
+ return 0;
+
+ return intel_gt_live_subtests(tests, &i915->gt);
+}
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index c1b764233761..524f6710b7aa 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1673,10 +1673,8 @@ static u32 oa_config_flex_reg(const struct i915_oa_config *oa_config,
* in the case that the OA unit has been disabled.
*/
static void
-gen8_update_reg_state_unlocked(struct i915_perf_stream *stream,
- struct intel_context *ce,
- u32 *reg_state,
- const struct i915_oa_config *oa_config)
+gen8_update_reg_state_unlocked(const struct intel_context *ce,
+ const struct i915_perf_stream *stream)
{
struct drm_i915_private *i915 = ce->engine->i915;
u32 ctx_oactxctrl = i915->perf.ctx_oactxctrl_offset;
@@ -1691,21 +1689,19 @@ gen8_update_reg_state_unlocked(struct i915_perf_stream *stream,
EU_PERF_CNTL5,
EU_PERF_CNTL6,
};
+ u32 *reg_state = ce->lrc_reg_state;
int i;
- CTX_REG(reg_state, ctx_oactxctrl, GEN8_OACTXCONTROL,
+ reg_state[ctx_oactxctrl + 1] =
(stream->period_exponent << GEN8_OA_TIMER_PERIOD_SHIFT) |
(stream->periodic ? GEN8_OA_TIMER_ENABLE : 0) |
- GEN8_OA_COUNTER_RESUME);
+ GEN8_OA_COUNTER_RESUME;
- for (i = 0; i < ARRAY_SIZE(flex_regs); i++) {
- CTX_REG(reg_state, ctx_flexeu0 + i * 2, flex_regs[i],
- oa_config_flex_reg(oa_config, flex_regs[i]));
- }
+ for (i = 0; i < ARRAY_SIZE(flex_regs); i++)
+ reg_state[ctx_flexeu0 + i * 2 + 1] =
+ oa_config_flex_reg(stream->oa_config, flex_regs[i]);
- CTX_REG(reg_state,
- CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE,
- intel_sseu_make_rpcs(i915, &ce->sseu));
+ reg_state[CTX_R_PWR_CLK_STATE] = intel_sseu_make_rpcs(i915, &ce->sseu);
}
struct flex {
@@ -1729,7 +1725,7 @@ gen8_store_flex(struct i915_request *rq,
offset = i915_ggtt_offset(ce->state) + LRC_STATE_PN * PAGE_SIZE;
do {
*cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;
- *cs++ = offset + (flex->offset + 1) * sizeof(u32);
+ *cs++ = offset + flex->offset * sizeof(u32);
*cs++ = 0;
*cs++ = flex->value;
} while (flex++, --count);
@@ -1863,7 +1859,7 @@ static int gen8_configure_all_contexts(struct i915_perf_stream *stream,
struct drm_i915_private *i915 = stream->dev_priv;
/* The MMIO offsets for Flex EU registers aren't contiguous */
const u32 ctx_flexeu0 = i915->perf.ctx_flexeu0_offset;
-#define ctx_flexeuN(N) (ctx_flexeu0 + 2 * (N))
+#define ctx_flexeuN(N) (ctx_flexeu0 + 2 * (N) + 1)
struct flex regs[] = {
{
GEN8_R_PWR_CLK_STATE,
@@ -1871,7 +1867,7 @@ static int gen8_configure_all_contexts(struct i915_perf_stream *stream,
},
{
GEN8_OACTXCONTROL,
- i915->perf.ctx_oactxctrl_offset,
+ i915->perf.ctx_oactxctrl_offset + 1,
((stream->period_exponent << GEN8_OA_TIMER_PERIOD_SHIFT) |
(stream->periodic ? GEN8_OA_TIMER_ENABLE : 0) |
GEN8_OA_COUNTER_RESUME)
@@ -2299,9 +2295,8 @@ err_config:
return ret;
}
-void i915_oa_init_reg_state(struct intel_engine_cs *engine,
- struct intel_context *ce,
- u32 *regs)
+void i915_oa_init_reg_state(const struct intel_context *ce,
+ const struct intel_engine_cs *engine)
{
struct i915_perf_stream *stream;
@@ -2313,7 +2308,7 @@ void i915_oa_init_reg_state(struct intel_engine_cs *engine,
stream = engine->i915->perf.exclusive_stream;
if (stream)
- gen8_update_reg_state_unlocked(stream, ce, regs, stream->oa_config);
+ gen8_update_reg_state_unlocked(ce, stream);
}
/**
diff --git a/drivers/gpu/drm/i915/i915_perf.h b/drivers/gpu/drm/i915/i915_perf.h
index a412b16d9ffc..f4fb311184b1 100644
--- a/drivers/gpu/drm/i915/i915_perf.h
+++ b/drivers/gpu/drm/i915/i915_perf.h
@@ -25,8 +25,7 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
-void i915_oa_init_reg_state(struct intel_engine_cs *engine,
- struct intel_context *ce,
- u32 *reg_state);
+void i915_oa_init_reg_state(const struct intel_context *ce,
+ const struct intel_engine_cs *engine);
#endif /* __I915_PERF_H__ */
diff --git a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
index 1ccf0f731ac0..66d83c1390c1 100644
--- a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
@@ -15,6 +15,7 @@ selftest(workarounds, intel_workarounds_live_selftests)
selftest(gt_engines, intel_engine_live_selftests)
selftest(gt_timelines, intel_timeline_live_selftests)
selftest(gt_contexts, intel_context_live_selftests)
+selftest(gt_lrc, intel_lrc_live_selftests)
selftest(requests, i915_request_live_selftests)
selftest(active, i915_active_live_selftests)
selftest(objects, i915_gem_object_live_selftests)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.