From 28a1f7894f6b518bbc4f5d23f7bc7b2edc1d6c3f Mon Sep 17 00:00:00 2001
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Fri, 21 Jun 2019 08:07:52 +0100
Subject: drm/i915: Consolidate some open coded mmio rmw
Git-commit: 28a1f7894f6b518bbc4f5d23f7bc7b2edc1d6c3f
Patch-mainline: v5.4-rc1
References: bsc#1152489
Replace some gen6/7 open coded rmw with intel_uncore_rmw.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-14-tvrtko.ursulin@linux.intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 41 +++++++++++++----------------
1 file changed, 18 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 9eba5460ad14..7c543e067623 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1725,13 +1725,10 @@ static void gen7_ppgtt_enable(struct intel_gt *gt)
struct drm_i915_private *i915 = gt->i915;
struct intel_uncore *uncore = gt->uncore;
struct intel_engine_cs *engine;
- u32 ecochk, ecobits;
enum intel_engine_id id;
+ u32 ecochk;
- ecobits = intel_uncore_read(uncore, GAC_ECO_BITS);
- intel_uncore_write(uncore,
- GAC_ECO_BITS,
- ecobits | ECOBITS_PPGTT_CACHE64B);
+ intel_uncore_rmw(uncore, GAC_ECO_BITS, 0, ECOBITS_PPGTT_CACHE64B);
ecochk = intel_uncore_read(uncore, GAM_ECOCHK);
if (IS_HASWELL(i915)) {
@@ -1753,22 +1750,21 @@ static void gen7_ppgtt_enable(struct intel_gt *gt)
static void gen6_ppgtt_enable(struct intel_gt *gt)
{
struct intel_uncore *uncore = gt->uncore;
- u32 ecochk, gab_ctl, ecobits;
- ecobits = intel_uncore_read(uncore, GAC_ECO_BITS);
- intel_uncore_write(uncore,
- GAC_ECO_BITS,
- ecobits | ECOBITS_SNB_BIT | ECOBITS_PPGTT_CACHE64B);
+ intel_uncore_rmw(uncore,
+ GAC_ECO_BITS,
+ 0,
+ ECOBITS_SNB_BIT | ECOBITS_PPGTT_CACHE64B);
- gab_ctl = intel_uncore_read(uncore, GAB_CTL);
- intel_uncore_write(uncore,
- GAB_CTL,
- gab_ctl | GAB_CTL_CONT_AFTER_PAGEFAULT);
+ intel_uncore_rmw(uncore,
+ GAB_CTL,
+ 0,
+ GAB_CTL_CONT_AFTER_PAGEFAULT);
- ecochk = intel_uncore_read(uncore, GAM_ECOCHK);
- intel_uncore_write(uncore,
- GAM_ECOCHK,
- ecochk | ECOCHK_SNB_BIT | ECOCHK_PPGTT_CACHE64B);
+ intel_uncore_rmw(uncore,
+ GAM_ECOCHK,
+ 0,
+ ECOCHK_SNB_BIT | ECOCHK_PPGTT_CACHE64B);
if (HAS_PPGTT(uncore->i915)) /* may be disabled for VT-d */
intel_uncore_write(uncore,
@@ -2226,11 +2222,10 @@ static void gtt_write_workarounds(struct intel_gt *gt)
*/
if (HAS_PAGE_SIZES(i915, I915_GTT_PAGE_SIZE_64K) &&
INTEL_GEN(i915) <= 10)
- intel_uncore_write(uncore,
- GEN8_GAMW_ECO_DEV_RW_IA,
- intel_uncore_read(uncore,
- GEN8_GAMW_ECO_DEV_RW_IA) |
- GAMW_ECO_ENABLE_64K_IPS_FIELD);
+ intel_uncore_rmw(uncore,
+ GEN8_GAMW_ECO_DEV_RW_IA,
+ 0,
+ GAMW_ECO_ENABLE_64K_IPS_FIELD);
}
int i915_ppgtt_init_hw(struct intel_gt *gt)
--
2.28.0