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drm/i915: Return a default RCS context size 

Instead of returning whatever size the latest GEN used. This is because
context sizes for new GENs can go up or down, but the only safe thing to
do for missing cases is to use the largest known one, whatever that is.

Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1515711307-28979-1-git-send-email-oscar.mateo@intel.com
This commit is contained in:
Oscar Mateo 2018-01-11 14:55:06 -08:00 committed by Paulo Zanoni
parent a6358dda29
commit 7ab4adbd92
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_engine_cs.c
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@ -38,6 +38,7 @@
*/
#define HSW_CXT_TOTAL_SIZE (17 * PAGE_SIZE)
#define DEFAULT_LR_CONTEXT_RENDER_SIZE (22 * PAGE_SIZE)
#define GEN8_LR_CONTEXT_RENDER_SIZE (20 * PAGE_SIZE)
#define GEN9_LR_CONTEXT_RENDER_SIZE (22 * PAGE_SIZE)
#define GEN10_LR_CONTEXT_RENDER_SIZE (18 * PAGE_SIZE)
@ -157,6 +158,7 @@ __intel_engine_context_size(struct drm_i915_private *dev_priv, u8 class)
switch (INTEL_GEN(dev_priv)) {
default:
MISSING_CASE(INTEL_GEN(dev_priv));
return DEFAULT_LR_CONTEXT_RENDER_SIZE;
case 10:
return GEN10_LR_CONTEXT_RENDER_SIZE;
case 9: