We infrequently use the direct i915 backpointer from the i915_request,
so do we really need to waste the space in the struct for it? 8 bytes
from the most frequently allocated struct vs an 3 bytes and pointer
chasing in using rq->engine->i915?
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 4 ++--
drivers/gpu/drm/i915/gt/gen2_engine_cs.c | 2 +-
drivers/gpu/drm/i915/gt/intel_context_sseu.c | 2 +-
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 6 ++----
drivers/gpu/drm/i915/gt/intel_lrc.c | 6 +++---
drivers/gpu/drm/i915/gt/intel_ring_submission.c | 6 +++---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 4 ++--
drivers/gpu/drm/i915/gt/selftest_engine_cs.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_mocs.c | 2 +-
drivers/gpu/drm/i915/gt/selftest_rc6.c | 9 ++++-----
drivers/gpu/drm/i915/gt/selftest_timeline.c | 4 ++--
drivers/gpu/drm/i915/gvt/scheduler.c | 4 ++--
drivers/gpu/drm/i915/i915_request.c | 12 ++++++------
drivers/gpu/drm/i915/i915_request.h | 3 ---
drivers/gpu/drm/i915/i915_trace.h | 10 +++++-----
drivers/gpu/drm/i915/selftests/i915_perf.c | 2 +-
drivers/gpu/drm/i915/selftests/igt_spinner.c | 14 +++++++-------
17 files changed, 43 insertions(+), 49 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 219a36995b96..02a5c0ce39ca 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -1910,8 +1910,8 @@ static int i915_reset_gen7_sol_offsets(struct i915_request *rq)
u32 *cs;
int i;
- if (!IS_GEN(rq->i915, 7) || rq->engine->id != RCS0) {
- drm_dbg(&rq->i915->drm, "sol reset is gen7/rcs only\n");
+ if (!IS_GEN(rq->engine->i915, 7) || rq->engine->id != RCS0) {
+ drm_dbg(&rq->engine->i915->drm, "sol reset is gen7/rcs only\n");
return -EINVAL;
}
diff --git a/drivers/gpu/drm/i915/gt/gen2_engine_cs.c b/drivers/gpu/drm/i915/gt/gen2_engine_cs.c
index 8d2e85081247..3fb0dc1fb910 100644
--- a/drivers/gpu/drm/i915/gt/gen2_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/gen2_engine_cs.c
@@ -77,7 +77,7 @@ int gen4_emit_flush_rcs(struct i915_request *rq, u32 mode)
cmd = MI_FLUSH;
if (mode & EMIT_INVALIDATE) {
cmd |= MI_EXE_FLUSH;
- if (IS_G4X(rq->i915) || IS_GEN(rq->i915, 5))
+ if (IS_G4X(rq->engine->i915) || IS_GEN(rq->engine->i915, 5))
cmd |= MI_INVALIDATE_ISP;
}
diff --git a/drivers/gpu/drm/i915/gt/intel_context_sseu.c b/drivers/gpu/drm/i915/gt/intel_context_sseu.c
index 487299cb91f2..27ae48049239 100644
--- a/drivers/gpu/drm/i915/gt/intel_context_sseu.c
+++ b/drivers/gpu/drm/i915/gt/intel_context_sseu.c
@@ -30,7 +30,7 @@ static int gen8_emit_rpcs_config(struct i915_request *rq,
*cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;
*cs++ = lower_32_bits(offset);
*cs++ = upper_32_bits(offset);
- *cs++ = intel_sseu_make_rpcs(rq->i915, &sseu);
+ *cs++ = intel_sseu_make_rpcs(rq->engine->i915, &sseu);
intel_ring_advance(rq, cs);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index c8c14981eb5d..e37490d459c2 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -661,7 +661,6 @@ static int measure_breadcrumb_dw(struct intel_context *ce)
if (!frame)
return -ENOMEM;
- frame->rq.i915 = engine->i915;
frame->rq.engine = engine;
frame->rq.context = ce;
rcu_assign_pointer(frame->rq.timeline, ce->timeline);
@@ -1192,8 +1191,7 @@ bool intel_engine_can_store_dword(struct intel_engine_cs *engine)
}
}
-static int print_sched_attr(struct drm_i915_private *i915,
- const struct i915_sched_attr *attr,
+static int print_sched_attr(const struct i915_sched_attr *attr,
char *buf, int x, int len)
{
if (attr->priority == I915_PRIORITY_INVALID)
@@ -1213,7 +1211,7 @@ static void print_request(struct drm_printer *m,
char buf[80] = "";
int x = 0;
- x = print_sched_attr(rq->i915, &rq->sched.attr, buf, x, sizeof(buf));
+ x = print_sched_attr(&rq->sched.attr, buf, x, sizeof(buf));
drm_printf(m, "%s %llx:%llx%s%s %s @ %dms: %s\n",
prefix,
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 6fc0966b75ff..aac8da18694f 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -3533,7 +3533,7 @@ static int emit_pdps(struct i915_request *rq)
int err, i;
u32 *cs;
- GEM_BUG_ON(intel_vgpu_active(rq->i915));
+ GEM_BUG_ON(intel_vgpu_active(rq->engine->i915));
/*
* Beware ye of the dragons, this sequence is magic!
@@ -4512,11 +4512,11 @@ static int gen8_emit_flush_render(struct i915_request *request,
* On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL
* pipe control.
*/
- if (IS_GEN(request->i915, 9))
+ if (IS_GEN(request->engine->i915, 9))
vf_flush_wa = true;
/* WaForGAMHang:kbl */
- if (IS_KBL_REVID(request->i915, 0, KBL_REVID_B0))
+ if (IS_KBL_REVID(request->engine->i915, 0, KBL_REVID_B0))
dc_flush_wa = true;
}
diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
index d9c1701061b9..68a08486fc87 100644
--- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
@@ -645,8 +645,8 @@ static inline int mi_set_context(struct i915_request *rq,
struct intel_context *ce,
u32 flags)
{
- struct drm_i915_private *i915 = rq->i915;
struct intel_engine_cs *engine = rq->engine;
+ struct drm_i915_private *i915 = engine->i915;
enum intel_engine_id id;
const int num_engines =
IS_HASWELL(i915) ? RUNTIME_INFO(i915)->num_engines - 1 : 0;
@@ -760,7 +760,7 @@ static inline int mi_set_context(struct i915_request *rq,
static int remap_l3_slice(struct i915_request *rq, int slice)
{
- u32 *cs, *remap_info = rq->i915->l3_parity.remap_info[slice];
+ u32 *cs, *remap_info = rq->engine->i915->l3_parity.remap_info[slice];
int i;
if (!remap_info)
@@ -871,7 +871,7 @@ static int switch_context(struct i915_request *rq)
void **residuals = NULL;
int ret;
- GEM_BUG_ON(HAS_EXECLISTS(rq->i915));
+ GEM_BUG_ON(HAS_EXECLISTS(engine->i915));
if (engine->wa_ctx.vma && ce != engine->kernel_context) {
if (engine->wa_ctx.vma->private != ce) {
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 94d66a9d760d..9ae903f1ab57 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1728,7 +1728,7 @@ wa_list_srm(struct i915_request *rq,
const struct i915_wa_list *wal,
struct i915_vma *vma)
{
- struct drm_i915_private *i915 = rq->i915;
+ struct drm_i915_private *i915 = rq->engine->i915;
unsigned int i, count = 0;
const struct i915_wa *wa;
u32 srm, *cs;
@@ -1817,7 +1817,7 @@ static int engine_wa_list_verify(struct intel_context *ce,
err = 0;
for (i = 0, wa = wal->list; i < wal->count; i++, wa++) {
- if (mcr_range(rq->i915, i915_mmio_reg_offset(wa->reg)))
+ if (mcr_range(rq->engine->i915, i915_mmio_reg_offset(wa->reg)))
continue;
if (!wa_verify(wa, results[i], wal->name, from))
diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c b/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
index f88e445a1cae..729c3c7b11e2 100644
--- a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
@@ -49,7 +49,7 @@ static int write_timestamp(struct i915_request *rq, int slot)
return PTR_ERR(cs);
cmd = MI_STORE_REGISTER_MEM | MI_USE_GGTT;
- if (INTEL_GEN(rq->i915) >= 8)
+ if (INTEL_GEN(rq->engine->i915) >= 8)
cmd++;
*cs++ = cmd;
*cs++ = i915_mmio_reg_offset(RING_TIMESTAMP(rq->engine->mmio_base));
diff --git a/drivers/gpu/drm/i915/gt/selftest_mocs.c b/drivers/gpu/drm/i915/gt/selftest_mocs.c
index 8831ffee2061..7bae64018ad9 100644
--- a/drivers/gpu/drm/i915/gt/selftest_mocs.c
+++ b/drivers/gpu/drm/i915/gt/selftest_mocs.c
@@ -143,7 +143,7 @@ static int read_mocs_table(struct i915_request *rq,
{
u32 addr;
- if (HAS_GLOBAL_MOCS_REGISTERS(rq->i915))
+ if (HAS_GLOBAL_MOCS_REGISTERS(rq->engine->i915))
addr = global_mocs_offset();
else
addr = mocs_offset(rq->engine);
diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c
index 2dc460624bbc..3c8434846fa1 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rc6.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rc6.c
@@ -132,7 +132,7 @@ static const u32 *__live_rc6_ctx(struct intel_context *ce)
}
cmd = MI_STORE_REGISTER_MEM | MI_USE_GGTT;
- if (INTEL_GEN(rq->i915) >= 8)
+ if (INTEL_GEN(rq->engine->i915) >= 8)
cmd++;
*cs++ = cmd;
@@ -197,10 +197,10 @@ int live_rc6_ctx_wa(void *arg)
int pass;
for (pass = 0; pass < 2; pass++) {
+ struct i915_gpu_error *error = >->i915->gpu_error;
struct intel_context *ce;
unsigned int resets =
- i915_reset_engine_count(>->i915->gpu_error,
- engine);
+ i915_reset_engine_count(error, engine);
const u32 *res;
/* Use a sacrifical context */
@@ -230,8 +230,7 @@ int live_rc6_ctx_wa(void *arg)
engine->name, READ_ONCE(*res));
if (resets !=
- i915_reset_engine_count(>->i915->gpu_error,
- engine)) {
+ i915_reset_engine_count(error, engine)) {
pr_err("%s: GPU reset required\n",
engine->name);
add_taint_for_CI(TAINT_WARN);
diff --git a/drivers/gpu/drm/i915/gt/selftest_timeline.c b/drivers/gpu/drm/i915/gt/selftest_timeline.c
index ef1c35073dc0..b2aad7ef046a 100644
--- a/drivers/gpu/drm/i915/gt/selftest_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftest_timeline.c
@@ -426,12 +426,12 @@ static int emit_ggtt_store_dw(struct i915_request *rq, u32 addr, u32 value)
if (IS_ERR(cs))
return PTR_ERR(cs);
- if (INTEL_GEN(rq->i915) >= 8) {
+ if (INTEL_GEN(rq->engine->i915) >= 8) {
*cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;
*cs++ = addr;
*cs++ = 0;
*cs++ = value;
- } else if (INTEL_GEN(rq->i915) >= 4) {
+ } else if (INTEL_GEN(rq->engine->i915) >= 4) {
*cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;
*cs++ = 0;
*cs++ = addr;
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index 0fb1df71c637..8fc2ad4517e9 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -348,7 +348,7 @@ static int copy_workload_to_ring_buffer(struct intel_vgpu_workload *workload)
u32 *cs;
int err;
- if (IS_GEN(req->i915, 9) && is_inhibit_context(req->context))
+ if (IS_GEN(req->engine->i915, 9) && is_inhibit_context(req->context))
intel_vgpu_restore_inhibit_context(vgpu, req);
/*
@@ -939,7 +939,7 @@ static void update_guest_context(struct intel_vgpu_workload *workload)
context_page_num = rq->engine->context_size;
context_page_num = context_page_num >> PAGE_SHIFT;
- if (IS_BROADWELL(rq->i915) && rq->engine->id == RCS0)
+ if (IS_BROADWELL(rq->engine->i915) && rq->engine->id == RCS0)
context_page_num = 19;
context_base = (void *) ctx->lrc_reg_state -
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index c5d7220de529..3bb7320249ae 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -56,7 +56,7 @@ static struct i915_global_request {
static const char *i915_fence_get_driver_name(struct dma_fence *fence)
{
- return dev_name(to_request(fence)->i915->drm.dev);
+ return dev_name(to_request(fence)->engine->i915->drm.dev);
}
static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
@@ -812,7 +812,6 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp)
}
}
- rq->i915 = ce->engine->i915;
rq->context = ce;
rq->engine = ce->engine;
rq->ring = ce->ring;
@@ -1011,12 +1010,12 @@ __emit_semaphore_wait(struct i915_request *to,
struct i915_request *from,
u32 seqno)
{
- const int has_token = INTEL_GEN(to->i915) >= 12;
+ const int has_token = INTEL_GEN(to->engine->i915) >= 12;
u32 hwsp_offset;
int len, err;
u32 *cs;
- GEM_BUG_ON(INTEL_GEN(to->i915) < 8);
+ GEM_BUG_ON(INTEL_GEN(to->engine->i915) < 8);
GEM_BUG_ON(i915_request_has_initial_breadcrumb(to));
/* We need to pin the signaler's HWSP until we are finished reading. */
@@ -1211,7 +1210,7 @@ __i915_request_await_external(struct i915_request *rq, struct dma_fence *fence)
{
mark_external(rq);
return i915_sw_fence_await_dma_fence(&rq->submit, fence,
- i915_fence_context_timeout(rq->i915,
+ i915_fence_context_timeout(rq->engine->i915,
fence->context),
I915_FENCE_GFP);
}
@@ -1782,7 +1781,8 @@ long i915_request_wait(struct i915_request *rq,
* (bad for battery).
*/
if (flags & I915_WAIT_PRIORITY) {
- if (!i915_request_started(rq) && INTEL_GEN(rq->i915) >= 6)
+ if (!i915_request_started(rq) &&
+ INTEL_GEN(rq->engine->i915) >= 6)
intel_rps_boost(rq);
}
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index 5d4709a3dace..118ab6650d1f 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -162,9 +162,6 @@ struct i915_request {
struct dma_fence fence;
spinlock_t lock;
- /** On Which ring this request was generated */
- struct drm_i915_private *i915;
-
/**
* Context and ring buffer related to this request
* Contexts are refcounted, so when this request is associated with a
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index bc854ad60954..a4addcc64978 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -735,7 +735,7 @@ TRACE_EVENT(i915_request_queue,
),
TP_fast_assign(
- __entry->dev = rq->i915->drm.primary->index;
+ __entry->dev = rq->engine->i915->drm.primary->index;
__entry->class = rq->engine->uabi_class;
__entry->instance = rq->engine->uabi_instance;
__entry->ctx = rq->fence.context;
@@ -761,7 +761,7 @@ DECLARE_EVENT_CLASS(i915_request,
),
TP_fast_assign(
- __entry->dev = rq->i915->drm.primary->index;
+ __entry->dev = rq->engine->i915->drm.primary->index;
__entry->class = rq->engine->uabi_class;
__entry->instance = rq->engine->uabi_instance;
__entry->ctx = rq->fence.context;
@@ -804,7 +804,7 @@ TRACE_EVENT(i915_request_in,
),
TP_fast_assign(
- __entry->dev = rq->i915->drm.primary->index;
+ __entry->dev = rq->engine->i915->drm.primary->index;
__entry->class = rq->engine->uabi_class;
__entry->instance = rq->engine->uabi_instance;
__entry->ctx = rq->fence.context;
@@ -833,7 +833,7 @@ TRACE_EVENT(i915_request_out,
),
TP_fast_assign(
- __entry->dev = rq->i915->drm.primary->index;
+ __entry->dev = rq->engine->i915->drm.primary->index;
__entry->class = rq->engine->uabi_class;
__entry->instance = rq->engine->uabi_instance;
__entry->ctx = rq->fence.context;
@@ -895,7 +895,7 @@ TRACE_EVENT(i915_request_wait_begin,
* less desirable.
*/
TP_fast_assign(
- __entry->dev = rq->i915->drm.primary->index;
+ __entry->dev = rq->engine->i915->drm.primary->index;
__entry->class = rq->engine->uabi_class;
__entry->instance = rq->engine->uabi_instance;
__entry->ctx = rq->fence.context;
diff --git a/drivers/gpu/drm/i915/selftests/i915_perf.c b/drivers/gpu/drm/i915/selftests/i915_perf.c
index 8eb3108f1767..be54570c407c 100644
--- a/drivers/gpu/drm/i915/selftests/i915_perf.c
+++ b/drivers/gpu/drm/i915/selftests/i915_perf.c
@@ -162,7 +162,7 @@ static int write_timestamp(struct i915_request *rq, int slot)
return PTR_ERR(cs);
len = 5;
- if (INTEL_GEN(rq->i915) >= 8)
+ if (INTEL_GEN(rq->engine->i915) >= 8)
len++;
*cs++ = GFX_OP_PIPE_CONTROL(len);
diff --git a/drivers/gpu/drm/i915/selftests/igt_spinner.c b/drivers/gpu/drm/i915/selftests/igt_spinner.c
index e35ba5f9e73f..699bfe0328fb 100644
--- a/drivers/gpu/drm/i915/selftests/igt_spinner.c
+++ b/drivers/gpu/drm/i915/selftests/igt_spinner.c
@@ -134,15 +134,15 @@ igt_spinner_create_request(struct igt_spinner *spin,
batch = spin->batch;
- if (INTEL_GEN(rq->i915) >= 8) {
+ if (INTEL_GEN(rq->engine->i915) >= 8) {
*batch++ = MI_STORE_DWORD_IMM_GEN4;
*batch++ = lower_32_bits(hws_address(hws, rq));
*batch++ = upper_32_bits(hws_address(hws, rq));
- } else if (INTEL_GEN(rq->i915) >= 6) {
+ } else if (INTEL_GEN(rq->engine->i915) >= 6) {
*batch++ = MI_STORE_DWORD_IMM_GEN4;
*batch++ = 0;
*batch++ = hws_address(hws, rq);
- } else if (INTEL_GEN(rq->i915) >= 4) {
+ } else if (INTEL_GEN(rq->engine->i915) >= 4) {
*batch++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT;
*batch++ = 0;
*batch++ = hws_address(hws, rq);
@@ -154,11 +154,11 @@ igt_spinner_create_request(struct igt_spinner *spin,
*batch++ = arbitration_command;
- if (INTEL_GEN(rq->i915) >= 8)
+ if (INTEL_GEN(rq->engine->i915) >= 8)
*batch++ = MI_BATCH_BUFFER_START | BIT(8) | 1;
- else if (IS_HASWELL(rq->i915))
+ else if (IS_HASWELL(rq->engine->i915))
*batch++ = MI_BATCH_BUFFER_START | MI_BATCH_PPGTT_HSW;
- else if (INTEL_GEN(rq->i915) >= 6)
+ else if (INTEL_GEN(rq->engine->i915) >= 6)
*batch++ = MI_BATCH_BUFFER_START;
else
*batch++ = MI_BATCH_BUFFER_START | MI_BATCH_GTT;
@@ -176,7 +176,7 @@ igt_spinner_create_request(struct igt_spinner *spin,
}
flags = 0;
- if (INTEL_GEN(rq->i915) <= 5)
+ if (INTEL_GEN(rq->engine->i915) <= 5)
flags |= I915_DISPATCH_SECURE;
err = engine->emit_bb_start(rq, vma->node.start, PAGE_SIZE, flags);
--
2.20.1
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