From 5cbc1e2f48086ea08a37b3b75aa481ae9842af39 Mon Sep 17 00:00:00 2001 From: Jackie Li Date: Tue, 13 Mar 2018 17:32:51 -0700 Subject: [PATCH] drm/i915: Add support to return CNL specific reserved WOPCM size CNL has its specific reserved GuC WOPCM size for RC6 and other hardware contexts. This patch updates the code to return CNL specific reserved GuC WOPCM size for RC6 and other hardware contexts so that the GuC WOPCM size can be calculated correctly for CNL. v9: - Created a new patch for these changes originally made in v8 4/6 patch of this series (Sagar/Michal) v10: - Used if-else ladder to the returning of context sizes (Joonas) v11: - Removed GUC_ prefix from context size macro (Michal) v13: - Updated the ordering of s-o-b/cc/r-b tags (Sagar) Bspec: 12690 Signed-off-by: Jackie Li Cc: Sagar Arun Kamble Cc: Michal Wajdeczko Cc: Chris Wilson Cc: Joonas Lahtinen Reviewed-by: Joonas Lahtinen (v9) Reviewed-by: Michal Wajdeczko (v11) Reviewed-by: Joonas Lahtinen (v12) Reviewed-by: Joonas Lahtinen Signed-off-by: Joonas Lahtinen Link: https://patchwork.freedesktop.org/patch/msgid/1520987574-19351-3-git-send-email-yaodong.li@intel.com --- drivers/gpu/drm/i915/intel_wopcm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c index 7b150d580d4a..a29e0c9e60a7 100644 --- a/drivers/gpu/drm/i915/intel_wopcm.c +++ b/drivers/gpu/drm/i915/intel_wopcm.c @@ -54,6 +54,8 @@ /* 24KB at the end of WOPCM is reserved for RC6 CTX on BXT. */ #define BXT_WOPCM_RC6_CTX_RESERVED (24 * 1024) +/* 36KB WOPCM reserved at the end of WOPCM on CNL. */ +#define CNL_WOPCM_HW_CTX_RESERVED (36 * 1024) /* 128KB from GUC_WOPCM_RESERVED is reserved for FW on Gen9. */ #define GEN9_GUC_FW_RESERVED (128 * 1024) @@ -76,6 +78,8 @@ static inline u32 context_reserved_size(struct drm_i915_private *i915) { if (IS_GEN9_LP(i915)) return BXT_WOPCM_RC6_CTX_RESERVED; + else if (INTEL_GEN(i915) >= 10) + return CNL_WOPCM_HW_CTX_RESERVED; else return 0; } -- 2.17.1