With the upcoming multitile support each tile will have its own local memory. Mark the current LMEM with the suffix '0' to emphasise that it belongs to the root tile.

Suggested-by: Michal Wajdeczko michal.wajdeczko@intel.com Signed-off-by: Andi Shyti andi.shyti@linux.intel.com Reviewed-by: Michal Wajdeczko michal.wajdeczko@intel.com Reviewed-by: Andrzej Hajda andrzej.hajda@intel.com --- drivers/gpu/drm/i915/display/intel_fb.c | 2 +- drivers/gpu/drm/i915/display/intel_fb_pin.c | 2 +- drivers/gpu/drm/i915/display/intel_plane_initial.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_lmem.c | 4 ++-- drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c | 6 +++--- drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c | 8 ++++---- drivers/gpu/drm/i915/gt/intel_gt.c | 2 +- drivers/gpu/drm/i915/intel_memory_region.c | 2 +- drivers/gpu/drm/i915/intel_memory_region.h | 4 ++-- 9 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c index 94c57facbb463..e9ad142ac40fa 100644 --- a/drivers/gpu/drm/i915/display/intel_fb.c +++ b/drivers/gpu/drm/i915/display/intel_fb.c @@ -1994,7 +1994,7 @@ intel_user_framebuffer_create(struct drm_device *dev,

/* object is backed with LMEM for discrete */ i915 = to_i915(obj->base.dev); - if (HAS_LMEM(i915) && !i915_gem_object_can_migrate(obj, INTEL_REGION_LMEM)) { + if (HAS_LMEM(i915) && !i915_gem_object_can_migrate(obj, INTEL_REGION_LMEM_0)) { /* object is "remote", not in local memory */ i915_gem_object_put(obj); return ERR_PTR(-EREMOTE); diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.c b/drivers/gpu/drm/i915/display/intel_fb_pin.c index a307b4993bcf3..bd6e7c98e751d 100644 --- a/drivers/gpu/drm/i915/display/intel_fb_pin.c +++ b/drivers/gpu/drm/i915/display/intel_fb_pin.c @@ -140,7 +140,7 @@ intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb, if (!ret && phys_cursor) ret = i915_gem_object_attach_phys(obj, alignment); else if (!ret && HAS_LMEM(dev_priv)) - ret = i915_gem_object_migrate(obj, &ww, INTEL_REGION_LMEM); + ret = i915_gem_object_migrate(obj, &ww, INTEL_REGION_LMEM_0); /* TODO: Do we need to sync when migration becomes async? */ if (!ret) ret = i915_gem_object_pin_pages(obj); diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c index 7979929bb6323..d10f27d0b7b09 100644 --- a/drivers/gpu/drm/i915/display/intel_plane_initial.c +++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c @@ -72,7 +72,7 @@ initial_plane_vma(struct drm_i915_private *i915, }

phys_base = pte & I915_GTT_PAGE_MASK; - mem = i915->mm.regions[INTEL_REGION_LMEM]; + mem = i915->mm.regions[INTEL_REGION_LMEM_0];

/* * We don't currently expect this to ever be placed in the diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c index ede084f36ca93..b2aaf620741e3 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c @@ -102,7 +102,7 @@ __i915_gem_object_create_lmem_with_ps(struct drm_i915_private *i915, resource_size_t page_size, unsigned int flags) { - return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM], + return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM_0], size, page_size, flags); }

@@ -137,6 +137,6 @@ i915_gem_object_create_lmem(struct drm_i915_private *i915, resource_size_t size, unsigned int flags) { - return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM], + return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM_0], size, 0, flags); } diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c index b071a58dd6daa..a342fd387d4ef 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c @@ -88,7 +88,7 @@ static int igt_dmabuf_import_self(void *arg) static int igt_dmabuf_import_same_driver_lmem(void *arg) { struct drm_i915_private *i915 = arg; - struct intel_memory_region *lmem = i915->mm.regions[INTEL_REGION_LMEM]; + struct intel_memory_region *lmem = i915->mm.regions[INTEL_REGION_LMEM_0]; struct drm_i915_gem_object *obj; struct drm_gem_object *import; struct dma_buf *dmabuf; @@ -252,10 +252,10 @@ static int igt_dmabuf_import_same_driver_lmem_smem(void *arg) struct drm_i915_private *i915 = arg; struct intel_memory_region *regions[2];

- if (!i915->mm.regions[INTEL_REGION_LMEM]) + if (!i915->mm.regions[INTEL_REGION_LMEM_0]) return 0;

- regions[0] = i915->mm.regions[INTEL_REGION_LMEM]; + regions[0] = i915->mm.regions[INTEL_REGION_LMEM_0]; regions[1] = i915->mm.regions[INTEL_REGION_SMEM]; return igt_dmabuf_import_same_driver(i915, regions, 2); } diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c index d534141b2cf7c..2c63daf932de7 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c @@ -92,17 +92,17 @@ static int igt_create_migrate(struct intel_gt *gt, enum intel_region_id src,

static int igt_smem_create_migrate(void *arg) { - return igt_create_migrate(arg, INTEL_REGION_LMEM, INTEL_REGION_SMEM); + return igt_create_migrate(arg, INTEL_REGION_LMEM_0, INTEL_REGION_SMEM); }

static int igt_lmem_create_migrate(void *arg) { - return igt_create_migrate(arg, INTEL_REGION_SMEM, INTEL_REGION_LMEM); + return igt_create_migrate(arg, INTEL_REGION_SMEM, INTEL_REGION_LMEM_0); }

static int igt_same_create_migrate(void *arg) { - return igt_create_migrate(arg, INTEL_REGION_LMEM, INTEL_REGION_LMEM); + return igt_create_migrate(arg, INTEL_REGION_LMEM_0, INTEL_REGION_LMEM_0); }

static int lmem_pages_migrate_one(struct i915_gem_ww_ctx *ww, @@ -152,7 +152,7 @@ static int lmem_pages_migrate_one(struct i915_gem_ww_ctx *ww, }

} else { - err = i915_gem_object_migrate(obj, ww, INTEL_REGION_LMEM); + err = i915_gem_object_migrate(obj, ww, INTEL_REGION_LMEM_0); if (err) { pr_err("Object failed migration to lmem\n"); if (err) diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index 57ca1e6b6203d..ca875ba3e2a9d 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -76,7 +76,7 @@ int intel_gt_probe_lmem(struct intel_gt *gt) return err; }

- id = INTEL_REGION_LMEM; + id = INTEL_REGION_LMEM_0;

mem->id = id;

diff --git a/drivers/gpu/drm/i915/intel_memory_region.c b/drivers/gpu/drm/i915/intel_memory_region.c index ded78b83e0b55..e38d2db1c3e32 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.c +++ b/drivers/gpu/drm/i915/intel_memory_region.c @@ -19,7 +19,7 @@ static const struct { .class = INTEL_MEMORY_SYSTEM, .instance = 0, }, - [INTEL_REGION_LMEM] = { + [INTEL_REGION_LMEM_0] = { .class = INTEL_MEMORY_LOCAL, .instance = 0, }, diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h index beded40c6d71c..cc7078bcbfbfc 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.h +++ b/drivers/gpu/drm/i915/intel_memory_region.h @@ -29,14 +29,14 @@ enum intel_memory_type {

enum intel_region_id { INTEL_REGION_SMEM = 0, - INTEL_REGION_LMEM, + INTEL_REGION_LMEM_0, INTEL_REGION_STOLEN_SMEM, INTEL_REGION_STOLEN_LMEM, INTEL_REGION_UNKNOWN, /* Should be last */ };

#define REGION_SMEM BIT(INTEL_REGION_SMEM) -#define REGION_LMEM BIT(INTEL_REGION_LMEM) +#define REGION_LMEM BIT(INTEL_REGION_LMEM_0) #define REGION_STOLEN_SMEM BIT(INTEL_REGION_STOLEN_SMEM) #define REGION_STOLEN_LMEM BIT(INTEL_REGION_STOLEN_LMEM)

From: Tvrtko Ursulin tvrtko.ursulin@intel.com

On a multi-tile platform, each tile has its own registers + GGTT space, and BAR 0 is extended to cover all of them.

Up to four GTs are supported in i915->gt[], with slot zero shadowing the existing i915->gt0 to enable source compatibility with legacy driver paths. A for_each_gt macro is added to iterate over the GTs and will be used by upcoming patches that convert various parts of the driver to be multi-gt aware.

Only the primary/root tile is initialized for now; the other tiles will be detected and plugged in by future patches once the necessary infrastructure is in place to handle them.

Signed-off-by: Abdiel Janulgue abdiel.janulgue@gmail.com Signed-off-by: Daniele Ceraolo Spurio daniele.ceraolospurio@intel.com Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Signed-off-by: Matt Roper matthew.d.roper@intel.com Signed-off-by: Andi Shyti andi.shyti@linux.intel.com Cc: Daniele Ceraolo Spurio daniele.ceraolospurio@intel.com Cc: Joonas Lahtinen joonas.lahtinen@linux.intel.com Cc: Matthew Auld matthew.auld@intel.com Reviewed-by: Matt Roper matthew.d.roper@intel.com Reviewed-by: Andrzej Hajda andrzej.hajda@intel.com --- drivers/gpu/drm/i915/gt/intel_gt.c | 133 ++++++++++++++++-- drivers/gpu/drm/i915/gt/intel_gt.h | 17 ++- drivers/gpu/drm/i915/gt/intel_gt_pm.c | 9 +- drivers/gpu/drm/i915/gt/intel_gt_types.h | 7 + drivers/gpu/drm/i915/i915_driver.c | 28 ++-- drivers/gpu/drm/i915/i915_drv.h | 6 + drivers/gpu/drm/i915/intel_memory_region.h | 3 + drivers/gpu/drm/i915/intel_uncore.c | 11 +- drivers/gpu/drm/i915/intel_uncore.h | 3 +- .../gpu/drm/i915/selftests/mock_gem_device.c | 13 +- 10 files changed, 184 insertions(+), 46 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index ca875ba3e2a9d..cfac4a913642e 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -29,7 +29,7 @@ #include "intel_uncore.h" #include "shmem_utils.h"

-void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) +static void __intel_gt_init_early(struct intel_gt *gt) { spin_lock_init(&gt->irq_lock);

@@ -51,17 +51,23 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) intel_rps_init_early(&gt->rps); }

-void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) +/* Preliminary initialization of Tile 0 */ +void intel_root_gt_init_early(struct drm_i915_private *i915) { + struct intel_gt *gt = to_gt(i915); + gt->i915 = i915; gt->uncore = &i915->uncore; + + __intel_gt_init_early(gt); }

-int intel_gt_probe_lmem(struct intel_gt *gt) +static int intel_gt_probe_lmem(struct intel_gt *gt) { struct drm_i915_private *i915 = gt->i915; + unsigned int instance = gt->info.id; + int id = INTEL_REGION_LMEM_0 + instance; struct intel_memory_region *mem; - int id; int err;

mem = intel_gt_setup_lmem(gt); @@ -76,9 +82,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt) return err; }

- id = INTEL_REGION_LMEM_0; - mem->id = id; + mem->instance = instance;

intel_memory_region_set_name(mem, "local%u", mem->instance);

@@ -807,16 +812,21 @@ void intel_gt_driver_release(struct intel_gt *gt) intel_gt_fini_hwconfig(gt); }

-void intel_gt_driver_late_release(struct intel_gt *gt) +void intel_gt_driver_late_release_all(struct drm_i915_private *i915) { + struct intel_gt *gt; + unsigned int id; + /* We need to wait for inflight RCU frees to release their grip */ rcu_barrier();

- intel_uc_driver_late_release(&gt->uc); - intel_gt_fini_requests(gt); - intel_gt_fini_reset(gt); - intel_gt_fini_timelines(gt); - intel_engines_free(gt); + for_each_gt(gt, i915, id) { + intel_uc_driver_late_release(&gt->uc); + intel_gt_fini_requests(gt); + intel_gt_fini_reset(gt); + intel_gt_fini_timelines(gt); + intel_engines_free(gt); + } }

/** @@ -1013,6 +1023,105 @@ void intel_gt_report_steering(struct drm_printer *p, struct intel_gt *gt, } }

+static int intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr) +{ + int ret; + + if (!gt_is_root(gt)) { + struct intel_uncore_mmio_debug *mmio_debug; + struct intel_uncore *uncore; + + uncore = kzalloc(sizeof(*uncore), GFP_KERNEL); + if (!uncore) + return -ENOMEM; + + mmio_debug = kzalloc(sizeof(*mmio_debug), GFP_KERNEL); + if (!mmio_debug) { + kfree(uncore); + return -ENOMEM; + } + + gt->uncore = uncore; + gt->uncore->debug = mmio_debug; + + __intel_gt_init_early(gt); + } + + intel_uncore_init_early(gt->uncore, gt); + + ret = intel_uncore_setup_mmio(gt->uncore, phys_addr); + if (ret) + return ret; + + gt->phys_addr = phys_addr; + + return 0; +} + +static void +intel_gt_tile_cleanup(struct intel_gt *gt) +{ + intel_uncore_cleanup_mmio(gt->uncore); + + if (!gt_is_root(gt)) { + kfree(gt->uncore->debug); + kfree(gt->uncore); + kfree(gt); + } +} + +int intel_gt_probe_all(struct drm_i915_private *i915) +{ + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + struct intel_gt *gt = &i915->gt0; + phys_addr_t phys_addr; + unsigned int mmio_bar; + int ret; + + mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0; + phys_addr = pci_resource_start(pdev, mmio_bar); + + /* + * We always have at least one primary GT on any device + * and it has been already initialized early during probe + * in i915_driver_probe() + */ + ret = intel_gt_tile_setup(gt, phys_addr); + if (ret) + return ret; + + i915->gt[0] = gt; + + /* TODO: add more tiles */ + return 0; +} + +int intel_gt_tiles_init(struct drm_i915_private *i915) +{ + struct intel_gt *gt; + unsigned int id; + int ret; + + for_each_gt(gt, i915, id) { + ret = intel_gt_probe_lmem(gt); + if (ret) + return ret; + } + + return 0; +} + +void intel_gt_release_all(struct drm_i915_private *i915) +{ + struct intel_gt *gt; + unsigned int id; + + for_each_gt(gt, i915, id) { + intel_gt_tile_cleanup(gt); + i915->gt[id] = NULL; + } +} + void intel_gt_info_print(const struct intel_gt_info *info, struct drm_printer *p) { diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h index ce471aa5c83d7..e76168e10a21b 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.h +++ b/drivers/gpu/drm/i915/gt/intel_gt.h @@ -39,10 +39,8 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc) return container_of(huc, struct intel_gt, uc.huc); }

-void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915); -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915); +void intel_root_gt_init_early(struct drm_i915_private *i915); int intel_gt_assign_ggtt(struct intel_gt *gt); -int intel_gt_probe_lmem(struct intel_gt *gt); int intel_gt_init_mmio(struct intel_gt *gt); int __must_check intel_gt_init_hw(struct intel_gt *gt); int intel_gt_init(struct intel_gt *gt); @@ -52,7 +50,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt); void intel_gt_driver_remove(struct intel_gt *gt); void intel_gt_driver_release(struct intel_gt *gt);

-void intel_gt_driver_late_release(struct intel_gt *gt); +void intel_gt_driver_late_release_all(struct drm_i915_private *i915);

int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout);

@@ -97,6 +95,17 @@ u32 intel_gt_read_register(struct intel_gt *gt, i915_reg_t reg);

void intel_gt_report_steering(struct drm_printer *p, struct intel_gt *gt, bool dump_table); + +int intel_gt_probe_all(struct drm_i915_private *i915); +int intel_gt_tiles_init(struct drm_i915_private *i915); +void intel_gt_release_all(struct drm_i915_private *i915); + +#define for_each_gt(gt__, i915__, id__) \ + for ((id__) = 0; \ + (id__) < I915_MAX_GT; \ + (id__)++) \ + for_each_if(((gt__) = (i915__)->gt[(id__)])) + void intel_gt_info_print(const struct intel_gt_info *info, struct drm_printer *p);

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c index e4ecc17889d34..eeead40485fbc 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c @@ -129,7 +129,14 @@ static const struct intel_wakeref_ops wf_ops = {

void intel_gt_pm_init_early(struct intel_gt *gt) { - intel_wakeref_init(&gt->wakeref, gt->uncore->rpm, &wf_ops); + /* + * We access the runtime_pm structure via gt->i915 here rather than + * gt->uncore as we do elsewhere in the file because gt->uncore is not + * yet initialized for all tiles at this point in the driver startup. + * runtime_pm is per-device rather than per-tile, so this is still the + * correct structure. + */ + intel_wakeref_init(&gt->wakeref, &gt->i915->runtime_pm, &wf_ops); seqcount_mutex_init(&gt->stats.lock, &gt->wakeref.mutex); }

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h index bbba885d45bd5..937b2e1a305ed 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h @@ -188,7 +188,14 @@ struct intel_gt { u8 instanceid; } default_steering;

+ /* + * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT. + */ + phys_addr_t phys_addr; + struct intel_gt_info { + unsigned int id; + intel_engine_mask_t engine_mask;

u32 l3bank_mask; diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c index 92a625a174e22..64e6f76861f95 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -321,9 +321,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv) intel_device_info_subplatform_init(dev_priv); intel_step_init(dev_priv);

- intel_gt_init_early(to_gt(dev_priv), dev_priv); intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug); - intel_uncore_init_early(&dev_priv->uncore, to_gt(dev_priv));

spin_lock_init(&dev_priv->irq_lock); spin_lock_init(&dev_priv->gpu_error.lock); @@ -354,7 +352,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)

intel_wopcm_init_early(&dev_priv->wopcm);

- __intel_gt_init_early(to_gt(dev_priv), dev_priv); + intel_root_gt_init_early(dev_priv);

i915_gem_init_early(dev_priv);

@@ -375,7 +373,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)

err_gem: i915_gem_cleanup_early(dev_priv); - intel_gt_driver_late_release(to_gt(dev_priv)); + intel_gt_driver_late_release_all(dev_priv); intel_region_ttm_device_fini(dev_priv); err_ttm: vlv_suspend_cleanup(dev_priv); @@ -394,7 +392,7 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv) intel_irq_fini(dev_priv); intel_power_domains_cleanup(dev_priv); i915_gem_cleanup_early(dev_priv); - intel_gt_driver_late_release(to_gt(dev_priv)); + intel_gt_driver_late_release_all(dev_priv); intel_region_ttm_device_fini(dev_priv); vlv_suspend_cleanup(dev_priv); i915_workqueues_cleanup(dev_priv); @@ -425,13 +423,9 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv) if (ret < 0) return ret;

- ret = intel_uncore_setup_mmio(&dev_priv->uncore); - if (ret < 0) - goto err_bridge; - ret = intel_uncore_init_mmio(&dev_priv->uncore); if (ret) - goto err_mmio; + return ret;

/* Try to make sure MCHBAR is enabled before poking at it */ intel_setup_mchbar(dev_priv); @@ -449,9 +443,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv) err_uncore: intel_teardown_mchbar(dev_priv); intel_uncore_fini_mmio(&dev_priv->uncore); -err_mmio: - intel_uncore_cleanup_mmio(&dev_priv->uncore); -err_bridge: pci_dev_put(dev_priv->bridge_dev);

return ret; @@ -465,7 +456,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv) { intel_teardown_mchbar(dev_priv); intel_uncore_fini_mmio(&dev_priv->uncore); - intel_uncore_cleanup_mmio(&dev_priv->uncore); pci_dev_put(dev_priv->bridge_dev); }

@@ -598,7 +588,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv) if (ret) goto err_ggtt;

- ret = intel_gt_probe_lmem(to_gt(dev_priv)); + ret = intel_gt_tiles_init(dev_priv); if (ret) goto err_mem_regions;

@@ -849,10 +839,14 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)

intel_vgpu_detect(i915);

- ret = i915_driver_mmio_probe(i915); + ret = intel_gt_probe_all(i915); if (ret < 0) goto out_runtime_pm_put;

+ ret = i915_driver_mmio_probe(i915); + if (ret < 0) + goto out_tiles_cleanup; + ret = i915_driver_hw_probe(i915); if (ret < 0) goto out_cleanup_mmio; @@ -909,6 +903,8 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent) i915_ggtt_driver_late_release(i915); out_cleanup_mmio: i915_driver_mmio_release(i915); +out_tiles_cleanup: + intel_gt_release_all(i915); out_runtime_pm_put: enable_rpm_wakeref_asserts(&i915->runtime_pm); i915_driver_late_release(i915); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 97622d3ccfc2a..8e4083d413592 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -777,6 +777,12 @@ struct drm_i915_private { /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */ struct intel_gt gt0;

+ /* + * i915->gt[0] == &i915->gt0 + */ +#define I915_MAX_GT 4 + struct intel_gt *gt[I915_MAX_GT]; + struct { struct i915_gem_contexts { spinlock_t lock; /* locks list */ diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h index cc7078bcbfbfc..3d8378c1b4478 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.h +++ b/drivers/gpu/drm/i915/intel_memory_region.h @@ -30,6 +30,9 @@ enum intel_memory_type { enum intel_region_id { INTEL_REGION_SMEM = 0, INTEL_REGION_LMEM_0, + INTEL_REGION_LMEM_1, + INTEL_REGION_LMEM_2, + INTEL_REGION_LMEM_3, INTEL_REGION_STOLEN_SMEM, INTEL_REGION_STOLEN_LMEM, INTEL_REGION_UNKNOWN, /* Should be last */ diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index ef8ffc01ad19c..8b9caaaacc21f 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -2039,14 +2039,11 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb, return NOTIFY_OK; }

-int intel_uncore_setup_mmio(struct intel_uncore *uncore) +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr) { struct drm_i915_private *i915 = uncore->i915; - struct pci_dev *pdev = to_pci_dev(i915->drm.dev); - int mmio_bar; int mmio_size;

- mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0; /* * Before gen4, the registers and the GTT are behind different BARs. * However, from gen4 onwards, the registers and the GTT are shared @@ -2063,7 +2060,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore) else mmio_size = 2 * 1024 * 1024;

- uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size); + uncore->regs = ioremap(phys_addr, mmio_size); if (uncore->regs == NULL) { drm_err(&i915->drm, "failed to map registers\n"); return -EIO; @@ -2074,9 +2071,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)

void intel_uncore_cleanup_mmio(struct intel_uncore *uncore) { - struct pci_dev *pdev = to_pci_dev(uncore->i915->drm.dev); - - pci_iounmap(pdev, uncore->regs); + iounmap(uncore->regs); }

void intel_uncore_init_early(struct intel_uncore *uncore, diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h index 9a760952d46af..52fe3d89dd2b8 100644 --- a/drivers/gpu/drm/i915/intel_uncore.h +++ b/drivers/gpu/drm/i915/intel_uncore.h @@ -29,6 +29,7 @@ #include <linux/notifier.h> #include <linux/hrtimer.h> #include <linux/io-64-nonatomic-lo-hi.h> +#include <linux/types.h>

#include "i915_reg_defs.h"

@@ -221,7 +222,7 @@ void intel_uncore_mmio_debug_init_early(struct intel_uncore_mmio_debug *mmio_debug); void intel_uncore_init_early(struct intel_uncore *uncore, struct intel_gt *gt); -int intel_uncore_setup_mmio(struct intel_uncore *uncore); +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr); int intel_uncore_init_mmio(struct intel_uncore *uncore); void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore, struct intel_gt *gt); diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c index 573d9b2e1a4a3..9c31a16f83800 100644 --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c @@ -73,7 +73,7 @@ static void mock_device_release(struct drm_device *dev) destroy_workqueue(i915->wq);

intel_region_ttm_device_fini(i915); - intel_gt_driver_late_release(to_gt(i915)); + intel_gt_driver_late_release_all(i915); intel_memory_regions_driver_release(i915);

drm_mode_config_cleanup(&i915->drm); @@ -112,6 +112,11 @@ static struct dev_pm_domain pm_domain = { }, };

+static void mock_gt_probe(struct drm_i915_private *i915) +{ + i915->gt[0] = &i915->gt0; +} + struct drm_i915_private *mock_gem_device(void) { #if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) @@ -180,11 +185,11 @@ struct drm_i915_private *mock_gem_device(void) spin_lock_init(&i915->gpu_error.lock);

i915_gem_init__mm(i915); - intel_gt_init_early(to_gt(i915), i915); - __intel_gt_init_early(to_gt(i915), i915); + intel_root_gt_init_early(i915); mock_uncore_init(&i915->uncore, i915); atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */ to_gt(i915)->awake = -ENODEV; + mock_gt_probe(i915);

ret = intel_region_ttm_device_init(i915); if (ret) @@ -229,7 +234,7 @@ struct drm_i915_private *mock_gem_device(void) err_drv: intel_region_ttm_device_fini(i915); err_ttm: - intel_gt_driver_late_release(to_gt(i915)); + intel_gt_driver_late_release_all(i915); intel_memory_regions_driver_release(i915); drm_mode_config_cleanup(&i915->drm); mock_destroy_device(i915);

Now that we have tiles we want each of them to have its own interface. A directory "gt/" is created under "cardN/" that will contain as many diroctories as the tiles.

In the coming patches tile related interfaces will be added. For now the sysfs gt structure simply has an id interface related to the current tile count.

The directory structure will follow this scheme:

/sys/.../card0 └── gt    ├── gt0    │   └── id : : └─- gtN       └── id

This new set of interfaces will be a basic tool for system managers and administrators when using i915.

Signed-off-by: Andi Shyti andi.shyti@linux.intel.com Cc: Chris Wilson chris@chris-wilson.co.uk Cc: Matt Roper matthew.d.roper@intel.com Cc: Sujaritha Sundaresan sujaritha.sundaresan@intel.com Cc: Tvrtko Ursulin tvrtko.ursulin@intel.com Reviewed-by: Sujaritha Sundaresan sujaritha.sundaresan@intel.com Reviewed-by: Andrzej Hajda andrzej.hajda@intel.com --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/gt/intel_gt.c | 2 + drivers/gpu/drm/i915/gt/intel_gt_sysfs.c | 103 +++++++++++++++++++++++ drivers/gpu/drm/i915/gt/intel_gt_sysfs.h | 34 ++++++++ drivers/gpu/drm/i915/i915_drv.h | 2 + drivers/gpu/drm/i915/i915_sysfs.c | 7 +- drivers/gpu/drm/i915/i915_sysfs.h | 3 + 7 files changed, 151 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index a54e84e054660..29523848396e4 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -105,6 +105,7 @@ gt-y += \ gt/intel_gt_pm_debugfs.o \ gt/intel_gt_pm_irq.o \ gt/intel_gt_requests.o \ + gt/intel_gt_sysfs.o \ gt/intel_gtt.o \ gt/intel_llc.o \ gt/intel_lrc.o \ diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index cfac4a913642e..5001a6168d566 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -26,6 +26,7 @@ #include "intel_rc6.h" #include "intel_renderstate.h" #include "intel_rps.h" +#include "intel_gt_sysfs.h" #include "intel_uncore.h" #include "shmem_utils.h"

@@ -458,6 +459,7 @@ void intel_gt_driver_register(struct intel_gt *gt) intel_rps_driver_register(&gt->rps);

intel_gt_debugfs_register(gt); + intel_gt_sysfs_register(gt); }

static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c new file mode 100644 index 0000000000000..d508319612944 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c @@ -0,0 +1,103 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include <drm/drm_device.h> +#include <linux/device.h> +#include <linux/kobject.h> +#include <linux/printk.h> +#include <linux/sysfs.h> + +#include "i915_drv.h" +#include "i915_sysfs.h" +#include "intel_gt.h" +#include "intel_gt_sysfs.h" +#include "intel_gt_types.h" +#include "intel_rc6.h" + +bool is_object_gt(struct kobject *kobj) +{ + return !strncmp(kobj->name, "gt", 2); +} + +static struct intel_gt *kobj_to_gt(struct kobject *kobj) +{ + return container_of(kobj, struct kobj_gt, base)->gt; +} + +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev, + const char *name) +{ + struct kobject *kobj = &dev->kobj; + + /* + * We are interested at knowing from where the interface + * has been called, whether it's called from gt/ or from + * the parent directory. + * From the interface position it depends also the value of + * the private data. + * If the interface is called from gt/ then private data is + * of the "struct intel_gt *" type, otherwise it's * a + * "struct drm_i915_private *" type. + */ + if (!is_object_gt(kobj)) { + struct drm_i915_private *i915 = kdev_minor_to_i915(dev); + + return to_gt(i915); + } + + return kobj_to_gt(kobj); +} + +static ssize_t id_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + + return sysfs_emit(buf, "%u\n", gt->info.id); +} +static DEVICE_ATTR_RO(id); + +static struct attribute *id_attrs[] = { + &dev_attr_id.attr, + NULL, +}; +ATTRIBUTE_GROUPS(id); + +static void kobj_gt_release(struct kobject *kobj) +{ + kfree(kobj); +} + +static struct kobj_type kobj_gt_type = { + .release = kobj_gt_release, + .sysfs_ops = &kobj_sysfs_ops, + .default_groups = id_groups, +}; + +void intel_gt_sysfs_register(struct intel_gt *gt) +{ + struct kobj_gt *kg; + + kg = kzalloc(sizeof(*kg), GFP_KERNEL); + if (!kg) + goto exit_fail; + + kobject_init(&kg->base, &kobj_gt_type); + kg->gt = gt; + + /* xfer ownership to sysfs tree */ + if (kobject_add(&kg->base, gt->i915->sysfs_gt, "gt%d", gt->info.id)) + goto exit_kobj_put; + + return; + +exit_kobj_put: + kobject_put(&kg->base); + +exit_fail: + drm_warn(&gt->i915->drm, + "failed to initialize gt%d sysfs root\n", gt->info.id); +} diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h new file mode 100644 index 0000000000000..9471b26752cfc --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef __SYSFS_GT_H__ +#define __SYSFS_GT_H__ + +#include <linux/ctype.h> +#include <linux/kobject.h> + +#include "i915_gem.h" /* GEM_BUG_ON() */ + +struct intel_gt; + +struct kobj_gt { + struct kobject base; + struct intel_gt *gt; +}; + +bool is_object_gt(struct kobject *kobj); + +struct drm_i915_private *kobj_to_i915(struct kobject *kobj); + +struct kobject * +intel_gt_create_kobj(struct intel_gt *gt, + struct kobject *dir, + const char *name); + +void intel_gt_sysfs_register(struct intel_gt *gt); +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev, + const char *name); + +#endif /* SYSFS_GT_H */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8e4083d413592..dc3369188f96f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -783,6 +783,8 @@ struct drm_i915_private { #define I915_MAX_GT 4 struct intel_gt *gt[I915_MAX_GT];

+ struct kobject *sysfs_gt; + struct { struct i915_gem_contexts { spinlock_t lock; /* locks list */ diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index a4d1759375b9d..5ff915b93c21a 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -39,7 +39,7 @@ #include "i915_sysfs.h" #include "intel_pm.h"

-static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev) +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev) { struct drm_minor *minor = dev_get_drvdata(kdev); return to_i915(minor->dev); @@ -538,6 +538,11 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv) if (ret) drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");

+ dev_priv->sysfs_gt = kobject_create_and_add("gt", &kdev->kobj); + if (!dev_priv->sysfs_gt) + drm_warn(&dev_priv->drm, + "failed to register GT sysfs directory\n"); + i915_setup_error_capture(kdev);

intel_engines_add_sysfs(dev_priv); diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h index 41afd4366416a..243a17741e3f1 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.h +++ b/drivers/gpu/drm/i915/i915_sysfs.h @@ -6,8 +6,11 @@ #ifndef __I915_SYSFS_H__ #define __I915_SYSFS_H__

+struct device; struct drm_i915_private;

+struct drm_i915_private *kdev_minor_to_i915(struct device *kdev); + void i915_setup_sysfs(struct drm_i915_private *i915); void i915_teardown_sysfs(struct drm_i915_private *i915);

Now tiles have their own sysfs interfaces under the gt/ directory. Because RPS is a property that can be configured on a tile basis, then each tile should have its own interface

The new sysfs structure will have a similar layout for the 4 tile case:

/sys/.../card0 ├── gt │   ├── gt0 │   │   ├── id │   │   ├── rc6_enable │   │   ├── rc6_residency_ms │   │   ├── rps_act_freq_mhz │   │   ├── rps_boost_freq_mhz │   │   ├── rps_cur_freq_mhz │   │   ├── rps_max_freq_mhz │   │   ├── rps_min_freq_mhz │   │   ├── rps_RP0_freq_mhz │   │   ├── rps_RP1_freq_mhz │   │  └── rps_RPn_freq_mhz . . . . . . │   └── gtN │   ├── id │   ├── rc6_enable │   ├── rc6_residency_ms │   ├── rps_act_freq_mhz │   ├── rps_boost_freq_mhz │   ├── rps_cur_freq_mhz │   ├── rps_max_freq_mhz │   ├── rps_min_freq_mhz │   ├── rps_RP0_freq_mhz │   ├── rps_RP1_freq_mhz │   └── rps_RPn_freq_mhz ├── gt_act_freq_mhz -+ ├── gt_boost_freq_mhz | ├── gt_cur_freq_mhz | Original interface ├── gt_max_freq_mhz +─-> kept as existing ABI; ├── gt_min_freq_mhz | it points to gt0/ ├── gt_RP0_freq_mhz | ├── gt_RP1_freq_mhz | └── gt_RPn_freq_mhz -+

The existing interfaces have been kept in their original location to preserve the existing ABI. They act on all the GTs: when writing they loop through all the GTs and write the information on each interface. When reading they provide the average value from all the GTs.

This patch is not really adding exposing new interfaces (new ABI) other than adapting the existing one to more tiles. In any case this new set of interfaces will be a basic tool for system managers and administrators when using i915.

Signed-off-by: Andi Shyti andi.shyti@linux.intel.com Signed-off-by: Lucas De Marchi lucas.demarchi@intel.com Cc: Chris Wilson chris@chris-wilson.co.uk Cc: Joonas Lahtinen joonas.lahtinen@linux.intel.com Cc: Matt Roper matthew.d.roper@intel.com Cc: Sujaritha Sundaresan sujaritha.sundaresan@intel.com Cc: Tvrtko Ursulin tvrtko.ursulin@intel.com Reviewed-by: Andrzej Hajda andrzej.hajda@intel.com --- drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c | 283 ++++++++++++++++++++ drivers/gpu/drm/i915/i915_sysfs.c | 177 ------------ 2 files changed, 283 insertions(+), 177 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c index 144b004e4de82..b0a1ea95d028e 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c @@ -14,6 +14,7 @@ #include "intel_gt_sysfs.h" #include "intel_gt_sysfs_pm.h" #include "intel_rc6.h" +#include "intel_rps.h"

#ifdef CONFIG_PM enum intel_gt_sysfs_op { @@ -21,6 +22,30 @@ enum intel_gt_sysfs_op { INTEL_GT_SYSFS_MAX, };

+static int +sysfs_gt_attribute_w_func(struct device *dev, struct device_attribute *attr, + int (func)(struct intel_gt *gt, u32 val), u32 val) +{ + struct intel_gt *gt; + int ret; + + if (!is_object_gt(&dev->kobj)) { + int i; + struct drm_i915_private *i915 = kdev_minor_to_i915(dev); + + for_each_gt(gt, i915, i) { + ret = func(gt, val); + if (ret) + break; + } + } else { + gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + ret = func(gt, val); + } + + return ret; +} + static u32 sysfs_gt_attribute_r_func(struct device *dev, struct device_attribute *attr, u32 (func)(struct intel_gt *gt), @@ -62,6 +87,7 @@ sysfs_gt_attribute_r_func(struct device *dev, struct device_attribute *attr, #define sysfs_gt_attribute_r_min_func(d, a, f) \ sysfs_gt_attribute_r_func(d, a, f, INTEL_GT_SYSFS_MIN)

+/* Frequency interfaces will show the maximum frequency value */ #define sysfs_gt_attribute_r_max_func(d, a, f) \ sysfs_gt_attribute_r_func(d, a, f, INTEL_GT_SYSFS_MAX)

@@ -238,7 +264,264 @@ static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj) } #endif /* CONFIG_PM */

+static u32 __act_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_read_actual_frequency(&gt->rps); +} + +static ssize_t act_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 actual_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __act_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", actual_freq); +} + +static u32 __cur_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_requested_frequency(&gt->rps); +} + +static ssize_t cur_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 cur_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __cur_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", cur_freq); +} + +static u32 __boost_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_boost_frequency(&gt->rps); +} + +static ssize_t boost_freq_mhz_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + u32 boost_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __boost_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", boost_freq); +} + +static int __boost_freq_mhz_store(struct intel_gt *gt, u32 val) +{ + return intel_rps_set_boost_frequency(&gt->rps, val); +} + +static ssize_t boost_freq_mhz_store(struct device *dev, + struct device_attribute *attr, + const char *buff, size_t count) +{ + ssize_t ret; + u32 val; + + ret = kstrtou32(buff, 0, &val); + if (ret) + return ret; + + return sysfs_gt_attribute_w_func(dev, attr, + __boost_freq_mhz_store, val) ?: count; +} + +static u32 __rp0_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_rp0_frequency(&gt->rps); +} + +static ssize_t RP0_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rp0_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __rp0_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rp0_freq); +} + +static u32 __rp1_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_rp1_frequency(&gt->rps); +} + +static ssize_t RP1_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rp1_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __rp1_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rp1_freq); +} + +static u32 __rpn_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_rpn_frequency(&gt->rps); +} + +static ssize_t RPn_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rpn_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __rpn_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rpn_freq); +} + +static u32 __max_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_max_frequency(&gt->rps); +} + +static ssize_t max_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 max_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __max_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", max_freq); +} + +static int __set_max_freq(struct intel_gt *gt, u32 val) +{ + return intel_rps_set_max_frequency(&gt->rps, val); +} + +static ssize_t max_freq_mhz_store(struct device *dev, + struct device_attribute *attr, + const char *buff, size_t count) +{ + int ret; + u32 val; + + ret = kstrtou32(buff, 0, &val); + if (ret) + return ret; + + ret = sysfs_gt_attribute_w_func(dev, attr, __set_max_freq, val); + + return ret ?: count; +} + +static u32 __min_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_min_frequency(&gt->rps); +} + +static ssize_t min_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 min_freq = sysfs_gt_attribute_r_min_func(dev, attr, + __min_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", min_freq); +} + +static int __set_min_freq(struct intel_gt *gt, u32 val) +{ + return intel_rps_set_min_frequency(&gt->rps, val); +} + +static ssize_t min_freq_mhz_store(struct device *dev, + struct device_attribute *attr, + const char *buff, size_t count) +{ + int ret; + u32 val; + + ret = kstrtou32(buff, 0, &val); + if (ret) + return ret; + + ret = sysfs_gt_attribute_w_func(dev, attr, __set_min_freq, val); + + return ret ?: count; +} + +static u32 __vlv_rpe_freq_mhz_show(struct intel_gt *gt) +{ + struct intel_rps *rps = &gt->rps; + + return intel_gpu_freq(rps, rps->efficient_freq); +} + +static ssize_t vlv_rpe_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rpe_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __vlv_rpe_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rpe_freq); +} + +#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \ + struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \ + struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store) + +#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name) \ + INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL) +#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name) \ + INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store) + +static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(RP0_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(RP1_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(RPn_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz); + +static DEVICE_ATTR_RO(vlv_rpe_freq_mhz); + +#define GEN6_ATTR(s) { \ + &dev_attr_##s##_act_freq_mhz.attr, \ + &dev_attr_##s##_cur_freq_mhz.attr, \ + &dev_attr_##s##_boost_freq_mhz.attr, \ + &dev_attr_##s##_max_freq_mhz.attr, \ + &dev_attr_##s##_min_freq_mhz.attr, \ + &dev_attr_##s##_RP0_freq_mhz.attr, \ + &dev_attr_##s##_RP1_freq_mhz.attr, \ + &dev_attr_##s##_RPn_freq_mhz.attr, \ + NULL, \ + } + +#define GEN6_RPS_ATTR GEN6_ATTR(rps) +#define GEN6_GT_ATTR GEN6_ATTR(gt) + +static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR; +static const struct attribute * const gen6_gt_attrs[] = GEN6_GT_ATTR; + +static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj, + const struct attribute * const *attrs) +{ + int ret; + + if (GRAPHICS_VER(gt->i915) < 6) + return 0; + + ret = sysfs_create_files(kobj, attrs); + if (ret) + return ret; + + if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) + ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr); + + return ret; +} + void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj) { + int ret; + intel_sysfs_rc6_init(gt, kobj); + + ret = is_object_gt(kobj) ? + intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) : + intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs); + if (ret) + drm_warn(&gt->i915->drm, + "failed to create gt%u RPS sysfs files (%pe)", + gt->info.id, ERR_PTR(ret)); } diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index 2c5d62a521f64..8521daba212a7 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -156,171 +156,6 @@ static const struct bin_attribute dpf_attrs_1 = { .private = (void *)1 };

-static ssize_t gt_act_freq_mhz_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps)); -} - -static ssize_t gt_cur_freq_mhz_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps)); -} - -static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps)); -} - -static ssize_t gt_boost_freq_mhz_store(struct device *kdev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(dev_priv)->rps; - ssize_t ret; - u32 val; - - ret = kstrtou32(buf, 0, &val); - if (ret) - return ret; - - ret = intel_rps_set_boost_frequency(rps, val); - - return ret ?: count; -} - -static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(dev_priv)->rps; - - return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq)); -} - -static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_gt *gt = to_gt(dev_priv); - struct intel_rps *rps = &gt->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps)); -} - -static ssize_t gt_max_freq_mhz_store(struct device *kdev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_gt *gt = to_gt(dev_priv); - struct intel_rps *rps = &gt->rps; - ssize_t ret; - u32 val; - - ret = kstrtou32(buf, 0, &val); - if (ret) - return ret; - - ret = intel_rps_set_max_frequency(rps, val); - - return ret ?: count; -} - -static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_gt *gt = to_gt(i915); - struct intel_rps *rps = &gt->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps)); -} - -static ssize_t gt_min_freq_mhz_store(struct device *kdev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - ssize_t ret; - u32 val; - - ret = kstrtou32(buf, 0, &val); - if (ret) - return ret; - - ret = intel_rps_set_min_frequency(rps, val); - - return ret ?: count; -} - -static DEVICE_ATTR_RO(gt_act_freq_mhz); -static DEVICE_ATTR_RO(gt_cur_freq_mhz); -static DEVICE_ATTR_RW(gt_boost_freq_mhz); -static DEVICE_ATTR_RW(gt_max_freq_mhz); -static DEVICE_ATTR_RW(gt_min_freq_mhz); - -static DEVICE_ATTR_RO(vlv_rpe_freq_mhz); - -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf); -static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL); -static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL); -static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL); - -/* For now we have a static number of RP states */ -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(dev_priv)->rps; - u32 val; - - if (attr == &dev_attr_gt_RP0_freq_mhz) - val = intel_rps_get_rp0_frequency(rps); - else if (attr == &dev_attr_gt_RP1_freq_mhz) - val = intel_rps_get_rp1_frequency(rps); - else if (attr == &dev_attr_gt_RPn_freq_mhz) - val = intel_rps_get_rpn_frequency(rps); - else - BUG(); - - return sysfs_emit(buf, "%d\n", val); -} - -static const struct attribute * const gen6_attrs[] = { - &dev_attr_gt_act_freq_mhz.attr, - &dev_attr_gt_cur_freq_mhz.attr, - &dev_attr_gt_boost_freq_mhz.attr, - &dev_attr_gt_max_freq_mhz.attr, - &dev_attr_gt_min_freq_mhz.attr, - &dev_attr_gt_RP0_freq_mhz.attr, - &dev_attr_gt_RP1_freq_mhz.attr, - &dev_attr_gt_RPn_freq_mhz.attr, - NULL, -}; - -static const struct attribute * const vlv_attrs[] = { - &dev_attr_gt_act_freq_mhz.attr, - &dev_attr_gt_cur_freq_mhz.attr, - &dev_attr_gt_boost_freq_mhz.attr, - &dev_attr_gt_max_freq_mhz.attr, - &dev_attr_gt_min_freq_mhz.attr, - &dev_attr_gt_RP0_freq_mhz.attr, - &dev_attr_gt_RP1_freq_mhz.attr, - &dev_attr_gt_RPn_freq_mhz.attr, - &dev_attr_vlv_rpe_freq_mhz.attr, - NULL, -}; - #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)

static ssize_t error_state_read(struct file *filp, struct kobject *kobj, @@ -406,14 +241,6 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv) } }

- ret = 0; - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) - ret = sysfs_create_files(&kdev->kobj, vlv_attrs); - else if (GRAPHICS_VER(dev_priv) >= 6) - ret = sysfs_create_files(&kdev->kobj, gen6_attrs); - if (ret) - drm_err(&dev_priv->drm, "RPS sysfs setup failed\n"); - dev_priv->sysfs_gt = kobject_create_and_add("gt", &kdev->kobj); if (!dev_priv->sysfs_gt) drm_warn(&dev_priv->drm, @@ -430,10 +257,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)

i915_teardown_error_capture(kdev);

- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) - sysfs_remove_files(&kdev->kobj, vlv_attrs); - else - sysfs_remove_files(&kdev->kobj, gen6_attrs); device_remove_bin_file(kdev, &dpf_attrs_1); device_remove_bin_file(kdev, &dpf_attrs); }