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drm/i915: Support flags in whitlist WAs

Browse source 
Newer hardware adds flags to the whitelist work-around register. These
allow per access direction privileges and ranges.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Robert M. Fosha <robert.m.fosha@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190618010108.27499-2-John.C.Harrison@Intel.com
This commit is contained in:
John Harrison 2019-06-17 18:01:05 -07:00 committed by Tvrtko Ursulin
parent 7afc7f8168
commit 5380d0b781
2 changed files with 15 additions and 1 deletions
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9
drivers/gpu/drm/i915/gt/intel_workarounds.c
View file

@ -1012,7 +1012,7 @@ bool intel_gt_verify_workarounds(struct drm_i915_private *i915,
}
static void
whitelist_reg(struct i915_wa_list *wal, i915_reg_t reg)
whitelist_reg_ext(struct i915_wa_list *wal, i915_reg_t reg, u32 flags)
{
struct i915_wa wa = {
.reg = reg
@ -1021,9 +1021,16 @@ whitelist_reg(struct i915_wa_list *wal, i915_reg_t reg)
if (GEM_DEBUG_WARN_ON(wal->count >= RING_MAX_NONPRIV_SLOTS))
return;
wa.reg.reg |= flags;
_wa_add(wal, &wa);
}
static void
whitelist_reg(struct i915_wa_list *wal, i915_reg_t reg)
{
whitelist_reg_ext(wal, reg, RING_FORCE_TO_NONPRIV_RW);
}
static void gen9_whitelist_build(struct i915_wa_list *w)
{
/* WaVFEStateAfterPipeControlwithMediaStateClear:skl,bxt,glk,cfl */

7
drivers/gpu/drm/i915/i915_reg.h
View file

@ -2513,6 +2513,13 @@ enum i915_power_well_id {
#define RING_WAIT_SEMAPHORE (1 << 10) /* gen6+ */
#define RING_FORCE_TO_NONPRIV(base, i) _MMIO(((base) + 0x4D0) + (i) * 4)
#define RING_FORCE_TO_NONPRIV_RW (0 << 28) /* CFL+ & Gen11+ */
#define RING_FORCE_TO_NONPRIV_RD (1 << 28)
#define RING_FORCE_TO_NONPRIV_WR (2 << 28)
#define RING_FORCE_TO_NONPRIV_RANGE_1 (0 << 0) /* CFL+ & Gen11+ */
#define RING_FORCE_TO_NONPRIV_RANGE_4 (1 << 0)
#define RING_FORCE_TO_NONPRIV_RANGE_16 (2 << 0)
#define RING_FORCE_TO_NONPRIV_RANGE_64 (3 << 0)
#define RING_MAX_NONPRIV_SLOTS 12
#define GEN7_TLB_RD_ADDR _MMIO(0x4700)