On 11/01/18 14:55, Oscar Mateo wrote:
From: Tvrtko Ursulin <[email protected]> Gen11 removes the Resource Streamer, which frees up a big chunk of the context image. BSpec indicates 12538 DWORDs (13 pages), plus one page for PPHWSP.
This is actually 12544 dwords according to the specs (I've already confirmed it with Oscar via IM). Still 13 pages anyway.
Reviewed-by: Daniele Ceraolo Spurio <[email protected]> Thanks, Daniele
Please notice that, when looking at the BSpec context image table, the right filter has to be applied as some rows are excluded for specific GENs. Also, some rows apply per-subslice (for the calculation above, we have supposed I915_MAX_SUBSLICES = 8). v2: Rebase. v3: Use the right size as per the BSpec. v4: - Rebased on top of the default context size (Rodrigo) - Clarify in the commit message where the subslice calculation comes from. BSpec: 18907 Acked-by: Ben Widawsky <[email protected]> Signed-off-by: Tvrtko Ursulin <[email protected]> Signed-off-by: Oscar Mateo <[email protected]> Cc: Rodrigo Vivi <[email protected]> Cc: Daniele Ceraolo Spurio <[email protected]> --- drivers/gpu/drm/i915/intel_engine_cs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index db758c5..1e7bf40 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -42,6 +42,7 @@ #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) +#define GEN11_LR_CONTEXT_RENDER_SIZE (14 * PAGE_SIZE)#define GEN8_LR_CONTEXT_OTHER_SIZE ( 2 * PAGE_SIZE) @@ -183,6 +184,8 @@ struct engine_info {default: MISSING_CASE(INTEL_GEN(dev_priv)); return DEFAULT_LR_CONTEXT_RENDER_SIZE; + case 11: + return GEN11_LR_CONTEXT_RENDER_SIZE; case 10: return GEN10_LR_CONTEXT_RENDER_SIZE; case 9:
_______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
