<!DOCTYPE html><html><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <p><br> </p> <div class="moz-cite-prefix">On 14-09-2023 17:49, Tejas Upadhyay wrote:<br> </div> <blockquote type="cite" cite="mid:20230914121909.3860392-8-tejas.upadhyay@intel.com"> <pre class="moz-quote-pre" wrap="">Use the newly added drm_print_memory_stats helper to show memory utilisation of our objects in drm/driver specific fdinfo output. To collect the stats we walk the per memory regions object lists and accumulate object size into the respective drm_memory_stats categories. Objects with multiple possible placements are reported in multiple regions for total and shared sizes, while other categories are counted only for the currently active region. V3: - dont use xe_bo_get/put, not needed - use designated initializer - Jani - use list_for_each_entry_rcu - Fix Checkpatch err - CI V2: - Use static initializer for mem_type - Himal/Jani Signed-off-by: Tejas Upadhyay <a class="moz-txt-link-rfc2396E" href="mailto:tejas.upadhyay@intel.com"><tejas.upadhyay@intel.com></a> --- drivers/gpu/drm/xe/xe_bo.h | 11 ++++ drivers/gpu/drm/xe/xe_drm_client.c | 84 +++++++++++++++++++++++++++++- 2 files changed, 94 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h index 4a68d869b3b5..b4c371f17bfb 100644 --- a/drivers/gpu/drm/xe/xe_bo.h +++ b/drivers/gpu/drm/xe/xe_bo.h @@ -6,6 +6,8 @@ #ifndef _XE_BO_H_ #define _XE_BO_H_ +#include <drm/ttm/ttm_tt.h> + #include "xe_bo_types.h" #include "xe_macros.h" #include "xe_vm_types.h" @@ -238,6 +240,15 @@ static inline size_t xe_bo_ccs_pages_start(struct xe_bo *bo) return PAGE_ALIGN(bo->ttm.base.size); } +static inline bool xe_bo_has_pages(struct xe_bo *bo) +{ + if ((bo->ttm.ttm && ttm_tt_is_populated(bo->ttm.ttm)) || + xe_bo_is_vram(bo)) + return true; + + return false; +} + void __xe_bo_release_dummy(struct kref *kref); /** diff --git a/drivers/gpu/drm/xe/xe_drm_client.c b/drivers/gpu/drm/xe/xe_drm_client.c index 7abc1db1dc9c..0ff23708f51b 100644 --- a/drivers/gpu/drm/xe/xe_drm_client.c +++ b/drivers/gpu/drm/xe/xe_drm_client.c @@ -4,10 +4,12 @@ */ #include <drm/drm_print.h> +#include <drm/xe_drm.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/types.h> +#include "xe_bo.h" #include "xe_bo_types.h" #include "xe_device_types.h" #include "xe_drm_client.h" @@ -103,6 +105,86 @@ void xe_drm_client_remove_bo(struct xe_bo *bo) xe_drm_client_put(client); } +static void bo_meminfo(struct xe_bo *bo, + struct drm_memory_stats stats[TTM_NUM_MEM_TYPES]) +{ + u64 sz = bo->size; + u32 mem_type; + + if (bo->placement.placement) + mem_type = bo->placement.placement->mem_type; + else + mem_type = XE_PL_TT; + + if (bo->ttm.base.handle_count > 1) + stats[mem_type].shared += sz; + else + stats[mem_type].private += sz; + + if (xe_bo_has_pages(bo)) { + stats[mem_type].resident += sz; + + if (!dma_resv_test_signaled(bo->ttm.base.resv, + dma_resv_usage_rw(true) | + DMA_RESV_USAGE_BOOKKEEP)) + stats[mem_type].active += sz; + else if (mem_type == XE_PL_SYSTEM) + stats[mem_type].purgeable += sz; + } +} + +static void show_meminfo(struct drm_printer *p, struct drm_file *file) +{ + static const char *const mem_type_to_name[TTM_NUM_MEM_TYPES] = { + [XE_PL_SYSTEM] = "system", + [XE_PL_TT] = "gtt", + [XE_PL_VRAM0] = "vram0", + [XE_PL_VRAM1] = "vram1", + [4 ... 6] = NULL, + [XE_PL_STOLEN] = "stolen" + }; + struct drm_memory_stats stats[TTM_NUM_MEM_TYPES] = {}; + struct xe_file *xef = file->driver_priv; + struct ttm_device *bdev = &xef->xe->ttm; + struct ttm_resource_manager *man; + struct xe_drm_client *client; + struct xe_bo *bo; + unsigned int id; + u32 mem_type; + + client = xef->client; + + /* Public objects. */ + spin_lock(&file->table_lock); + idr_for_each_entry(&file->object_idr, bo, id) + bo_meminfo(bo, stats); + spin_unlock(&file->table_lock); + + /* Internal objects. */ + rcu_read_lock(); + list_for_each_entry_rcu(bo, &client->bos_list, client_link) { + if (!bo) + continue; + bo_meminfo(bo, stats); + } + rcu_read_unlock(); + for (mem_type = XE_PL_SYSTEM; mem_type < TTM_NUM_MEM_TYPES; ++mem_type) { + if (!mem_type_to_name[mem_type]) + continue; + + man = ttm_manager_type(bdev, mem_type); + + if (man) { + drm_print_memory_stats(p, + &stats[mem_type], + DRM_GEM_OBJECT_RESIDENT | + (mem_type != XE_PL_SYSTEM ? 0 : + DRM_GEM_OBJECT_PURGEABLE), + mem_type_to_name[mem_type]); + } + } +} +</pre> </blockquote>  <pre style="margin-bottom:7.5pt;line-height:10.75pt; background:white;word-break:break-all"><span class="reviewed-by"><span style="font-family:Consolas;color:#333333">LGTM. Reviewed-by: Himal Prasad Ghimiray <a href="mailto:himal.prasad.ghimiray@intel.com"><himal.prasad.ghimiray@intel.com></a></span></span><span style="font-family:Consolas;color:#333333"></span></pre> <blockquote type="cite" cite="mid:20230914121909.3860392-8-tejas.upadhyay@intel.com"> <pre class="moz-quote-pre" wrap=""> /** * xe_drm_client_fdinfo() - Callback for fdinfo interface * @p: The drm_printer ptr @@ -115,6 +197,6 @@ void xe_drm_client_remove_bo(struct xe_bo *bo) */ void xe_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file) { - /* show_meminfo() will be developed here */ + show_meminfo(p, file); } #endif </pre> </blockquote> </body> </html>