On Thu, May 06, 2021 at 12:13:26PM -0700, Matthew Brost wrote:
From: Michal Wajdeczko michal.wajdeczko@intel.com
We can retrieve offsets to cmds buffers and descriptor from actual pointers that we already keep locally.
Signed-off-by: Michal Wajdeczko michal.wajdeczko@intel.com Signed-off-by: Matthew Brost matthew.brost@intel.com
drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c index dbece569fbe4..fbd6bd20f588 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c @@ -244,6 +244,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct) { struct intel_guc *guc = ct_to_guc(ct); u32 base, cmds;
- void *blob; int err; int i;
@@ -251,15 +252,18 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct)
/* vma should be already allocated and map'ed */ GEM_BUG_ON(!ct->vma);
- GEM_BUG_ON(!i915_gem_object_has_pinned_pages(ct->vma->obj));
This doesn't really have anything to do with this patch, but again this patch will be squashed into a large patch updating the GuC firmware, so I think this is fine.
With that: Reviewed-by: Matthew Brost matthew.brost@intel.com
base = intel_guc_ggtt_offset(guc, ct->vma);
- /* (re)initialize descriptors
* cmds buffers are in the second half of the blob page*/
- /* blob should start with send descriptor */
- blob = __px_vaddr(ct->vma->obj);
- GEM_BUG_ON(blob != ct->ctbs[CTB_SEND].desc);
- /* (re)initialize descriptors */ for (i = 0; i < ARRAY_SIZE(ct->ctbs); i++) { GEM_BUG_ON((i != CTB_SEND) && (i != CTB_RECV));
cmds = base + PAGE_SIZE / 4 * i + PAGE_SIZE / 2;
cmds = base + ptrdiff(ct->ctbs[i].cmds, blob);CT_DEBUG(ct, "%d: cmds addr=%#x\n", i, cmds);
guc_ct_buffer_reset(&ct->ctbs[i], cmds);
@@ -269,12 +273,12 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct) * Register both CT buffers starting with RECV buffer. * Descriptors are in first half of the blob. */
- err = ct_register_buffer(ct, base + PAGE_SIZE / 4 * CTB_RECV,
- err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs[CTB_RECV].desc, blob), INTEL_GUC_CT_BUFFER_TYPE_RECV); if (unlikely(err)) goto err_out;
- err = ct_register_buffer(ct, base + PAGE_SIZE / 4 * CTB_SEND,
- err = ct_register_buffer(ct, base + ptrdiff(ct->ctbs[CTB_SEND].desc, blob), INTEL_GUC_CT_BUFFER_TYPE_SEND); if (unlikely(err)) goto err_deregister;
-- 2.28.0