From: Matt Roper Date: Mon, 10 Apr 2023 18:39:09 +0000 (-0700) Subject: drm/xe: Track whether platform has LLC X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=bf08dd47d1567cb922d60a669e5a8a0c40253840;p=linux.git drm/xe: Track whether platform has LLC Some driver initialization is conditional on the presence of an LLC. Add an extra feature flag to support this. Reviewed-by: Lucas De Marchi Link: https://lore.kernel.org/r/20230410183910.2696628-2-matthew.d.roper@intel.com Signed-off-by: Matt Roper Signed-off-by: Rodrigo Vivi --- diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h index f1011ddb58501..f3cf5a4e5ab23 100644 --- a/drivers/gpu/drm/xe/xe_device_types.h +++ b/drivers/gpu/drm/xe/xe_device_types.h @@ -92,6 +92,8 @@ struct xe_device { u8 has_flat_ccs:1; /** @has_4tile: Whether tile-4 tiling is supported */ u8 has_4tile:1; + /** @has_llc: Device has a shared CPU+GPU last level cache */ + u8 has_llc:1; /** @has_range_tlb_invalidation: Has range based TLB invalidations */ u8 has_range_tlb_invalidation:1; /** @has_link_copy_engines: Whether the platform has link copy engines */ diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c index 2524ee1c73e32..1ea175d6a7d32 100644 --- a/drivers/gpu/drm/xe/xe_pci.c +++ b/drivers/gpu/drm/xe/xe_pci.c @@ -55,6 +55,7 @@ struct xe_device_desc { * should eventually move entirely into the display code's own logic. */ u8 has_4tile:1; + u8 has_llc:1; }; #define PLATFORM(x) \ @@ -172,6 +173,7 @@ static const struct xe_device_desc tgl_desc = { .graphics = &graphics_xelp, .media = &media_xem, PLATFORM(XE_TIGERLAKE), + .has_llc = 1, .require_force_probe = true, }; @@ -179,6 +181,7 @@ static const struct xe_device_desc adl_s_desc = { .graphics = &graphics_xelp, .media = &media_xem, PLATFORM(XE_ALDERLAKE_S), + .has_llc = 1, .require_force_probe = true, }; @@ -188,6 +191,7 @@ static const struct xe_device_desc adl_p_desc = { .graphics = &graphics_xelp, .media = &media_xem, PLATFORM(XE_ALDERLAKE_P), + .has_llc = 1, .require_force_probe = true, .subplatforms = (const struct xe_subplatform_desc[]) { { XE_SUBPLATFORM_ADLP_RPLU, "RPLU", adlp_rplu_ids }, @@ -491,6 +495,7 @@ static int xe_info_init(struct xe_device *xe, xe->info.graphics_name = graphics_desc->name; xe->info.media_name = media_desc ? media_desc->name : "none"; xe->info.has_4tile = desc->has_4tile; + xe->info.has_llc = desc->has_llc; xe->info.dma_mask_size = graphics_desc->dma_mask_size; xe->info.vram_flags = graphics_desc->vram_flags;