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drm/i915: Move context management under GEM

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Keep track of the GEM contexts underneath i915->gem.contexts and assign
them their own lock for the purposes of list management.

v2: Focus on lock tracking; ctx->vm is protected by ctx->mutex
v3: Correct split with removal of logical HW ID

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004134015.13204-15-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2019-10-04 14:40:09 +01:00
parent 2935ed5339
commit a4e7ccdac3
28 changed files with 394 additions and 354 deletions
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7
drivers/gpu/drm/i915/selftests/i915_vma.c
View File

@@ -24,6 +24,7 @@
#include <linux/prime_numbers.h>
#include "gem/i915_gem_context.h"
#include "gem/selftests/mock_context.h"
#include "i915_scatterlist.h"
@@ -38,7 +39,7 @@ static bool assert_vma(struct i915_vma *vma,
{
bool ok = true;
if (vma->vm != ctx->vm) {
if (vma->vm != rcu_access_pointer(ctx->vm)) {
pr_err("VMA created with wrong VM\n");
ok = false;
}
@@ -113,11 +114,13 @@ static int create_vmas(struct drm_i915_private *i915,
list_for_each_entry(obj, objects, st_link) {
for (pinned = 0; pinned <= 1; pinned++) {
list_for_each_entry(ctx, contexts, link) {
struct i915_address_space *vm = ctx->vm;
struct i915_address_space *vm;
struct i915_vma *vma;
int err;
vm = i915_gem_context_get_vm_rcu(ctx);
vma = checked_vma_instance(obj, vm, NULL);
i915_vm_put(vm);
if (IS_ERR(vma))
return PTR_ERR(vma);