From: Jackie Li <yaodong.li@intel.com>
Date: Tue, 13 Mar 2018 17:32:51 -0700
Subject: drm/i915: Add support to return CNL specific reserved WOPCM size
Git-commit: 5cbc1e2f48086ea08a37b3b75aa481ae9842af39
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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- Created a new patch for these changes originally made in v8 4/6 patch of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 <yaodong.li@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v9)
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> (v11)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v12)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1520987574-19351-3-git-send-email-yaodong.li@intel.com
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/i915/intel_wopcm.c | 4 ++++
1 file changed, 4 insertions(+)
--- 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(
{
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;
}