drm/i915: BDW can also detect unclaimed registers

By the time I wrote this patch, it allowed me to catch some problems.
But due to patch reordering - in order to prevent fake "regression"
reports - this patch may be merged after the fixes of the problems
identified by this patch.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index de7d9a7..3872796 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -303,6 +303,7 @@ static const struct intel_device_info intel_broadwell_d_info = {
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
        .has_llc = 1,
        .has_ddi = 1,
+       .has_fpga_dbg = 1,
        .has_fbc = 1,
        GEN_DEFAULT_PIPEOFFSETS,
        IVB_CURSOR_OFFSETS,
@@ -314,6 +315,7 @@ static const struct intel_device_info intel_broadwell_m_info = {
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
        .has_llc = 1,
        .has_ddi = 1,
+       .has_fpga_dbg = 1,
        .has_fbc = 1,
        GEN_DEFAULT_PIPEOFFSETS,
        IVB_CURSOR_OFFSETS,
@@ -325,6 +327,7 @@ static const struct intel_device_info intel_broadwell_gt3d_info = {
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
        .has_llc = 1,
        .has_ddi = 1,
+       .has_fpga_dbg = 1,
        .has_fbc = 1,
        GEN_DEFAULT_PIPEOFFSETS,
        IVB_CURSOR_OFFSETS,
@@ -336,6 +339,7 @@ static const struct intel_device_info intel_broadwell_gt3m_info = {
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
        .has_llc = 1,
        .has_ddi = 1,
+       .has_fpga_dbg = 1,
        .has_fbc = 1,
        GEN_DEFAULT_PIPEOFFSETS,
        IVB_CURSOR_OFFSETS,

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 6fee122..e81bc3b 100644 (file)
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -747,6 +747,7 @@ static bool is_gen8_shadowed(struct drm_i915_private *dev_priv, u32 reg)
 static void \
 gen8_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace) { \
        REG_WRITE_HEADER; \
+       hsw_unclaimed_reg_debug(dev_priv, reg, false, true); \
        if (reg < 0x40000 && !is_gen8_shadowed(dev_priv, reg)) { \
                if (dev_priv->uncore.forcewake_count == 0) \
                        dev_priv->uncore.funcs.force_wake_get(dev_priv, \
@@ -758,6 +759,8 @@ gen8_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace
        } else { \
                __raw_i915_write##x(dev_priv, reg, val); \
        } \
+       hsw_unclaimed_reg_debug(dev_priv, reg, false, false); \
+       hsw_unclaimed_reg_detect(dev_priv); \
        REG_WRITE_FOOTER; \
 }