[Intel-gfx] [PATCH v2 06/50] drm/i915/xehp: Extra media engines - Part 1 (engine definitions)
Lucas De Marchi
lucas.demarchi at intel.com
Tue Jul 20 23:03:17 UTC 2021
On Tue, Jul 13, 2021 at 08:14:56PM -0700, Matt Roper wrote:
>From: John Harrison <John.C.Harrison at Intel.com>
>
>Xe_HP can have a lot of extra media engines. This patch adds the basic
>definitions for them.
>
>v2:
> - Re-order intel_gt_info and intel_device_info slightly to avoid
> unnecessary padding now that we've increased the size of
> intel_engine_mask_t. (Tvrtko)
>
>Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
>Signed-off-by: Tomas Winkler <tomas.winkler at intel.com>
>Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
>---
> drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 7 ++-
> drivers/gpu/drm/i915/gt/intel_engine_cs.c | 50 ++++++++++++++++++++
> drivers/gpu/drm/i915/gt/intel_engine_types.h | 14 ++++--
> drivers/gpu/drm/i915/gt/intel_gt_types.h | 5 +-
> drivers/gpu/drm/i915/i915_reg.h | 6 +++
> drivers/gpu/drm/i915/intel_device_info.h | 3 +-
> 6 files changed, 74 insertions(+), 11 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
>index 87b06572fd2e..35edc55720f4 100644
>--- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
>+++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
>@@ -279,7 +279,7 @@ int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode)
> if (mode & EMIT_INVALIDATE)
> aux_inv = rq->engine->mask & ~BIT(BCS0);
> if (aux_inv)
>- cmd += 2 * hweight8(aux_inv) + 2;
>+ cmd += 2 * hweight32(aux_inv) + 2;
>
> cs = intel_ring_begin(rq, cmd);
> if (IS_ERR(cs))
>@@ -313,9 +313,8 @@ int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode)
> struct intel_engine_cs *engine;
> unsigned int tmp;
>
>- *cs++ = MI_LOAD_REGISTER_IMM(hweight8(aux_inv));
>- for_each_engine_masked(engine, rq->engine->gt,
>- aux_inv, tmp) {
>+ *cs++ = MI_LOAD_REGISTER_IMM(hweight32(aux_inv));
>+ for_each_engine_masked(engine, rq->engine->gt, aux_inv, tmp) {
> *cs++ = i915_mmio_reg_offset(aux_inv_reg(engine));
> *cs++ = AUX_INV;
> }
>diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
>index 3f8013612a08..6c2cb1400c8c 100644
>--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
>+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
>@@ -104,6 +104,38 @@ static const struct engine_info intel_engines[] = {
> { .graphics_ver = 11, .base = GEN11_BSD4_RING_BASE }
> },
> },
>+ [VCS4] = {
>+ .hw_id = 0, /* not used in GEN12+, see MI_SEMAPHORE_SIGNAL */
I may be misreading this, but hw_id is only used by
RING_FAULT_REG() which is not actually used since
gen8... they are using GEN8_RING_FAULT_REG().
I'm having a hard time to understand what this comment "see
MI_SEMAPHORE_SIGNAL" actually means.
I'd just remove all these `.hw_id = 0, ...` together with the comment
since it will be zero-initiliazed.
Lucas De Marchi
>+ .class = VIDEO_DECODE_CLASS,
>+ .instance = 4,
>+ .mmio_bases = {
>+ { .graphics_ver = 11, .base = XEHP_BSD5_RING_BASE }
>+ },
>+ },
>+ [VCS5] = {
>+ .hw_id = 0, /* not used in GEN12+, see MI_SEMAPHORE_SIGNAL */
>+ .class = VIDEO_DECODE_CLASS,
>+ .instance = 5,
>+ .mmio_bases = {
>+ { .graphics_ver = 12, .base = XEHP_BSD6_RING_BASE }
>+ },
>+ },
>+ [VCS6] = {
>+ .hw_id = 0, /* not used in GEN12+, see MI_SEMAPHORE_SIGNAL */
>+ .class = VIDEO_DECODE_CLASS,
>+ .instance = 6,
>+ .mmio_bases = {
>+ { .graphics_ver = 12, .base = XEHP_BSD7_RING_BASE }
>+ },
>+ },
>+ [VCS7] = {
>+ .hw_id = 0, /* not used in GEN12+, see MI_SEMAPHORE_SIGNAL */
>+ .class = VIDEO_DECODE_CLASS,
>+ .instance = 7,
>+ .mmio_bases = {
>+ { .graphics_ver = 12, .base = XEHP_BSD8_RING_BASE }
>+ },
>+ },
> [VECS0] = {
> .hw_id = VECS0_HW,
> .class = VIDEO_ENHANCEMENT_CLASS,
>@@ -121,6 +153,22 @@ static const struct engine_info intel_engines[] = {
> { .graphics_ver = 11, .base = GEN11_VEBOX2_RING_BASE }
> },
> },
>+ [VECS2] = {
>+ .hw_id = 0, /* not used in GEN12+, see MI_SEMAPHORE_SIGNAL */
>+ .class = VIDEO_ENHANCEMENT_CLASS,
>+ .instance = 2,
>+ .mmio_bases = {
>+ { .graphics_ver = 12, .base = XEHP_VEBOX3_RING_BASE }
>+ },
>+ },
>+ [VECS3] = {
>+ .hw_id = 0, /* not used in GEN12+, see MI_SEMAPHORE_SIGNAL */
>+ .class = VIDEO_ENHANCEMENT_CLASS,
>+ .instance = 3,
>+ .mmio_bases = {
>+ { .graphics_ver = 12, .base = XEHP_VEBOX4_RING_BASE }
>+ },
>+ },
> };
>
> /**
>@@ -269,6 +317,8 @@ static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id)
>
> BUILD_BUG_ON(MAX_ENGINE_CLASS >= BIT(GEN11_ENGINE_CLASS_WIDTH));
> BUILD_BUG_ON(MAX_ENGINE_INSTANCE >= BIT(GEN11_ENGINE_INSTANCE_WIDTH));
>+ BUILD_BUG_ON(I915_MAX_VCS > (MAX_ENGINE_INSTANCE + 1));
>+ BUILD_BUG_ON(I915_MAX_VECS > (MAX_ENGINE_INSTANCE + 1));
>
> if (GEM_DEBUG_WARN_ON(id >= ARRAY_SIZE(gt->engine)))
> return -EINVAL;
>diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
>index 1cb9c3b70b29..e0b1cbdbadce 100644
>--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
>+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
>@@ -46,7 +46,7 @@
> #define COPY_ENGINE_CLASS 3
> #define OTHER_CLASS 4
> #define MAX_ENGINE_CLASS 4
>-#define MAX_ENGINE_INSTANCE 3
>+#define MAX_ENGINE_INSTANCE 7
>
> #define I915_MAX_SLICES 3
> #define I915_MAX_SUBSLICES 8
>@@ -64,7 +64,7 @@ struct intel_gt;
> struct intel_ring;
> struct intel_uncore;
>
>-typedef u8 intel_engine_mask_t;
>+typedef u32 intel_engine_mask_t;
> #define ALL_ENGINES ((intel_engine_mask_t)~0ul)
>
> struct intel_hw_status_page {
>@@ -101,8 +101,8 @@ struct i915_ctx_workarounds {
> struct i915_vma *vma;
> };
>
>-#define I915_MAX_VCS 4
>-#define I915_MAX_VECS 2
>+#define I915_MAX_VCS 8
>+#define I915_MAX_VECS 4
>
> /*
> * Engine IDs definitions.
>@@ -115,9 +115,15 @@ enum intel_engine_id {
> VCS1,
> VCS2,
> VCS3,
>+ VCS4,
>+ VCS5,
>+ VCS6,
>+ VCS7,
> #define _VCS(n) (VCS0 + (n))
> VECS0,
> VECS1,
>+ VECS2,
>+ VECS3,
> #define _VECS(n) (VECS0 + (n))
> I915_NUM_ENGINES
> #define INVALID_ENGINE ((enum intel_engine_id)-1)
>diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
>index d93d578a4105..97a5075288d2 100644
>--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
>+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
>@@ -174,13 +174,14 @@ struct intel_gt {
>
> struct intel_gt_info {
> intel_engine_mask_t engine_mask;
>+
>+ u32 l3bank_mask;
>+
> u8 num_engines;
>
> /* Media engine access to SFC per instance */
> u8 vdbox_sfc_access;
>
>- u32 l3bank_mask;
>-
> /* Slice/subslice/EU info */
> struct sseu_dev_info sseu;
> } info;
>diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>index 2274e9c01d61..de0c27d67e15 100644
>--- a/drivers/gpu/drm/i915/i915_reg.h
>+++ b/drivers/gpu/drm/i915/i915_reg.h
>@@ -2516,9 +2516,15 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
> #define GEN11_BSD2_RING_BASE 0x1c4000
> #define GEN11_BSD3_RING_BASE 0x1d0000
> #define GEN11_BSD4_RING_BASE 0x1d4000
>+#define XEHP_BSD5_RING_BASE 0x1e0000
>+#define XEHP_BSD6_RING_BASE 0x1e4000
>+#define XEHP_BSD7_RING_BASE 0x1f0000
>+#define XEHP_BSD8_RING_BASE 0x1f4000
> #define VEBOX_RING_BASE 0x1a000
> #define GEN11_VEBOX_RING_BASE 0x1c8000
> #define GEN11_VEBOX2_RING_BASE 0x1d8000
>+#define XEHP_VEBOX3_RING_BASE 0x1e8000
>+#define XEHP_VEBOX4_RING_BASE 0x1f8000
> #define BLT_RING_BASE 0x22000
> #define RING_TAIL(base) _MMIO((base) + 0x30)
> #define RING_HEAD(base) _MMIO((base) + 0x34)
>diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
>index ba7483acc3f7..75d225d0db47 100644
>--- a/drivers/gpu/drm/i915/intel_device_info.h
>+++ b/drivers/gpu/drm/i915/intel_device_info.h
>@@ -166,7 +166,6 @@ struct intel_device_info {
> u8 media_ver;
> u8 media_rel;
>
>- u8 gt; /* GT number, 0 if undefined */
> intel_engine_mask_t platform_engine_mask; /* Engines supported by the HW */
>
> enum intel_platform platform;
>@@ -182,6 +181,8 @@ struct intel_device_info {
>
> u32 display_mmio_offset;
>
>+ u8 gt; /* GT number, 0 if undefined */
>+
> u8 pipe_mask;
> u8 cpu_transcoder_mask;
>
>--
>2.25.4
>
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