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[v12,3/6] drm/i915: Add support to return CNL specific reserved WOPCM size

Message ID 1519949806-1138-3-git-send-email-yaodong.li@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jackie Li March 2, 2018, 12:16 a.m. UTC 
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 - Created a new patch for these changes originally made in v8 4/6 patch of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)

Bspec: 12690

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)
Signed-off-by: Jackie Li <yaodong.li@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> (v11)
---
 drivers/gpu/drm/i915/intel_wopcm.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Joonas Lahtinen March 13, 2018, 12:11 p.m. UTC | #1 
Quoting Jackie Li (2018-03-02 02:16:43)
> 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  - Created a new patch for these changes originally made in v8 4/6 patch of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)
> 
> Bspec: 12690
> 
> 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: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Regards, Joonas
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c
index 8b2f177..237ca03 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;
 }