kernel/drivers/gpu/drm/i915/intel_mocs.c, branch linux-4.17.y

drm/i915: Rename drm_i915_gem_request to i915_request

2018-02-21T20:57:22Z

We want to de-emphasize the link between the request (dependency, execution and fence tracking) from GEM and so rename the struct from drm_i915_gem_request to i915_request. That is we may implement the GEM user interface on top of requests, but they are an abstraction for tracking execution rather than an implementation detail of GEM. (Since they are not tied to HW, we keep the i915 prefix as opposed to intel.) In short, the spatch: @@ @@ - struct drm_i915_gem_request + struct i915_request A corollary to contracting the type name, we also harmonise on using 'rq' shorthand for local variables where space if of the essence and repetition makes 'request' unwieldy. For globals and struct members, 'request' is still much preferred for its clarity. Signed-off-by: Chris Wilson Cc: Joonas Lahtinen Cc: Mika Kuoppala Cc: Tvrtko Ursulin Cc: Michał Winiarski Cc: Michal Wajdeczko Link: https://patchwork.freedesktop.org/patch/msgid/20180221095636.6649-1-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala Reviewed-by: Michał Winiarski Acked-by: Joonas Lahtinen

drm/i915: Use INTEL_GEN everywhere

2018-02-09T22:29:02Z

Coccinelle patch: @@ identifier p; @@ -INTEL_INFO(p)->gen +INTEL_GEN(p) Signed-off-by: Tvrtko Ursulin Link: https://patchwork.freedesktop.org/patch/msgid/20180208130606.15556-12-tvrtko.ursulin@linux.intel.com Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20180209215847.6660-1-chris@chris-wilson.co.uk

drm/i915/cnl: Cannonlake has same MOCS table than Skylake.

2017-06-07T14:29:51Z

All registers and default configuration are the same for Skylake and Cannonlake. v2: Don't apply Wa for platforms without MOCS. (Paulo) v3: Removed WaDisableSkipCaching that Joonas noticed that according to spec it is not applicable to CNL. Cc: Paulo Zanoni Signed-off-by: Rodrigo Vivi Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1496781040-20888-8-git-send-email-rodrigo.vivi@intel.com

drm/i915: Emit to ringbuffer directly

2017-02-14T14:30:46Z

This removes the usage of intel_ring_emit in favour of directly writing to the ring buffer. intel_ring_emit was preventing the compiler for optimising fetch and increment of the current ring buffer pointer and therefore generating very verbose code for every write. It had no useful purpose since all ringbuffer operations are started and ended with intel_ring_begin and intel_ring_advance respectively, with no bail out in the middle possible, so it is fine to increment the tail in intel_ring_begin and let the code manage the pointer itself. Useless instruction removal amounts to approximately two and half kilobytes of saved text on my build. Not sure if this has any measurable performance implications but executing a ton of useless instructions on fast paths cannot be good. v2: * Change return from intel_ring_begin to error pointer by popular demand. * Move tail increment to intel_ring_advance to enable some error checking. v3: * Move tail advance back into intel_ring_begin. * Rebase and tidy. v4: * Complete rebase after a few months since v3. v5: * Remove unecessary cast and fix !debug compile. (Chris Wilson) v6: * Make intel_ring_offset take request as well. * Fix recording of request postfix plus a sprinkle of asserts. (Chris Wilson) v7: * Use intel_ring_offset to get the postfix. (Chris Wilson) * Convert GVT code as well. v8: * Rename *out++ to *cs++. v9: * Fix GVT out to cs conversion in GVT. v10: * Rebase for new intel_ring_begin in selftests. Signed-off-by: Tvrtko Ursulin Cc: Chris Wilson Cc: Joonas Lahtinen Cc: Zhi Wang Reviewed-by: Chris Wilson Acked-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/20170214113242.29241-1-tvrtko.ursulin@linux.intel.com

drm/i915/glk: Turn on workarounds that apply to Geminilake too

2017-01-30T07:49:07Z

Apply workarounds to Geminilake, and annotate those that are applied unconditionally when they apply to GLK based on the workaround database. v2: Fix commit message typos. (David) v3: Rebase. Cc: David Weinehall Cc: Rodrigo Vivi Signed-off-by: Ander Conselvan de Oliveira Reviewed-by: David Weinehall Link: http://patchwork.freedesktop.org/patch/msgid/1485422218-9102-1-git-send-email-ander.conselvan.de.oliveira@intel.com

drm/i915: Introduce IS_GEN9_BC for Skylake and Kabylake.

2017-01-24T18:29:00Z

Along with GLK it was introduced the .is_lp and IS_GEN9_LP. So, following the same simplification standard we can put Skylake and Kabylake under the same bucket for most of the things. So let's add the IS_GEN9_BC for "Big Core" (non Atom based platforms). The i915_drv.c was let out of this patch on purpose because that is really a decision per platform, just like other cases where IS_KABYLAKE is different from IS_SKYLAKE. v2: fix conflict with IS_LP and 3 new cases for this big core bucket: - intel_ddi.c: intel_ddi_get_link_dpll - intel_fbc.c: find_compression_threshold - i915_gem_gtt.c: gtt_write_workarounds Cc: Anusha Srivatsa Cc: Ander Conselvan de Oliveira Cc: Jani Nikula Signed-off-by: Rodrigo Vivi Reviewed-by: Ander Conselvan de Oliveira Acked-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/1485196357-30599-2-git-send-email-rodrigo.vivi@intel.com

drm/i915/glk: Reuse broxton code for geminilake

2016-12-02T14:38:56Z

Geminilake is mostly backwards compatible with broxton, so change most of the IS_BROXTON() checks to IS_GEN9_LP(). Differences between the platforms will be implemented in follow-up patches. v2: Don't reuse broxton's path in intel_update_max_cdclk(). Don't set plane count as in broxton. v3: Rebase v4: Include the check intel_bios_is_port_hpd_inverted(). Commit message. v5: Leave i915_dmc_info() out; glk's csr version != bxt's. (Rodrigo) v6: Rebase. v7: Convert a few mode IS_BROXTON() occurances in pps, ddi, dsi and pll code. (Rodrigo) v8: Squash a couple of DDI patches with more conversions. (Rodrigo) Cc: Rodrigo Vivi Reviewed-by: Rodrigo Vivi Signed-off-by: Ander Conselvan de Oliveira Link: http://patchwork.freedesktop.org/patch/msgid/1480667037-11215-2-git-send-email-ander.conselvan.de.oliveira@intel.com

drm/i915: Make various init functions take dev_priv

2016-12-01T18:01:15Z

Like GEM init, GUC init, MOCS init and context creation. Enables them to lose dev_priv locals. Signed-off-by: Tvrtko Ursulin Reviewed-by: Chris Wilson Reviewed-by: Joonas Lahtinen

drm/i915: Rename struct intel_ringbuffer to struct intel_ring

2016-08-02T21:58:16Z

The state stored in this struct is not only the information about the buffer object, but the ring used to communicate with the hardware. Using buffer here is overly specific and, for me at least, conflates with the notion of buffer objects themselves. s/struct intel_ringbuffer/struct intel_ring/ s/enum intel_ring_hangcheck/enum intel_engine_hangcheck/ s/describe_ctx_ringbuf()/describe_ctx_ring()/ s/intel_ring_get_active_head()/intel_engine_get_active_head()/ s/intel_ring_sync_index()/intel_engine_sync_index()/ s/intel_ring_init_seqno()/intel_engine_init_seqno()/ s/ring_stuck()/engine_stuck()/ s/intel_cleanup_engine()/intel_engine_cleanup()/ s/intel_stop_engine()/intel_engine_stop()/ s/intel_pin_and_map_ringbuffer_obj()/intel_pin_and_map_ring()/ s/intel_unpin_ringbuffer()/intel_unpin_ring()/ s/intel_engine_create_ringbuffer()/intel_engine_create_ring()/ s/intel_ring_flush_all_caches()/intel_engine_flush_all_caches()/ s/intel_ring_invalidate_all_caches()/intel_engine_invalidate_all_caches()/ s/intel_ringbuffer_free()/intel_ring_free()/ Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1469432687-22756-15-git-send-email-chris@chris-wilson.co.uk Link: http://patchwork.freedesktop.org/patch/msgid/1470174640-18242-4-git-send-email-chris@chris-wilson.co.uk

drm/i915: Rename request->ringbuf to request->ring

2016-08-02T21:58:15Z

Now that we have disambuigated ring and engine, we can use the clearer and more consistent name for the intel_ringbuffer pointer in the request. @@ struct drm_i915_gem_request *r; @@ - r->ringbuf + r->ring Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1469432687-22756-12-git-send-email-chris@chris-wilson.co.uk Link: http://patchwork.freedesktop.org/patch/msgid/1470174640-18242-2-git-send-email-chris@chris-wilson.co.uk