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drm/i915: Add contexts for HSW

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Basic context support on HSW is no different than previous generations.
The size of the context object changes, but that's about it.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2012-07-24 20:47:30 -07:00 committed by Daniel Vetter
parent f047e395dd
commit 2e4291e0bc
2 changed files with 12 additions and 1 deletions
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5
drivers/gpu/drm/i915/i915_gem_context.c
View File

@ -112,7 +112,10 @@ static int get_context_size(struct drm_device *dev)
break;
case 7:
reg = I915_READ(GEN7_CXT_SIZE);
ret = GEN7_CXT_TOTAL_SIZE(reg) * 64;
if (IS_HASWELL(dev))
ret = HSW_CXT_TOTAL_SIZE(reg) * 64;
else
ret = GEN7_CXT_TOTAL_SIZE(reg) * 64;
break;
default:
BUG();

8
drivers/gpu/drm/i915/i915_reg.h
View File

@ -1498,6 +1498,14 @@
GEN7_CXT_EXTENDED_SIZE(ctx_reg) + \
GEN7_CXT_GT1_SIZE(ctx_reg) + \
GEN7_CXT_VFSTATE_SIZE(ctx_reg))
#define HSW_CXT_POWER_SIZE(ctx_reg) ((ctx_reg >> 26) & 0x3f)
#define HSW_CXT_RING_SIZE(ctx_reg) ((ctx_reg >> 23) & 0x7)
#define HSW_CXT_RENDER_SIZE(ctx_reg) ((ctx_reg >> 15) & 0xff)
#define HSW_CXT_TOTAL_SIZE(ctx_reg) (HSW_CXT_POWER_SIZE(ctx_reg) + \
HSW_CXT_RING_SIZE(ctx_reg) + \
HSW_CXT_RENDER_SIZE(ctx_reg) + \
GEN7_CXT_VFSTATE_SIZE(ctx_reg))
/*
* Overlay regs