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drm/i915/kbl: Introduce Kabylake platform defition.

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Kabylake is a Intel® Processor containing Intel® HD Graphics
following Skylake.

It is Gen9p5, so it inherits everything from Skylake.

Let's start by adding the platform separated from Skylake
but reusing most of all features, functions etc. Later we
rebase the PCI-ID patch without is_skylake=1
so we don't replace what original Author did there.

Few IS_SKYLAKEs if statements are not being covered by this patch
on purpose:
   - Workarounds: Kabylake is derivated from Skylake H0 so no
     		  W/As apply here.
   - GuC: A following patch removes Kabylake support with an
     	  explanation: No firmware available yet.
   - DMC/CSR: Done in a separated patch since we need to be carefull
     	      and load the version for revision 7 since
	      Kabylake is Skylake H0.

v2: relative cleaner commit message and added the missed
    IS_KABYLAKE to intel_i2c.c as pointed out by Jani.

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Rodrigo Vivi
2015-10-28 04:16:45 -07:00
committed by Jani Nikula
parent 7526ac195c
commit ef11bdb3e0
14 changed files with 90 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/gpu/drm/i915/intel_pm.c
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@@ -4567,7 +4567,8 @@ static void gen6_init_rps_frequencies(struct drm_device *dev)
dev_priv->rps.max_freq = dev_priv->rps.rp0_freq;
dev_priv->rps.efficient_freq = dev_priv->rps.rp1_freq;
if (IS_HASWELL(dev) || IS_BROADWELL(dev) || IS_SKYLAKE(dev)) {
if (IS_HASWELL(dev) || IS_BROADWELL(dev) ||
IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
ret = sandybridge_pcode_read(dev_priv,
HSW_PCODE_DYNAMIC_DUTY_CYCLE_CONTROL,
&ddcc_status);
@@ -4579,7 +4580,7 @@ static void gen6_init_rps_frequencies(struct drm_device *dev)
dev_priv->rps.max_freq);
}
if (IS_SKYLAKE(dev)) {
if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
/* Store the frequency values in 16.66 MHZ units, which is
the natural hardware unit for SKL */
dev_priv->rps.rp0_freq *= GEN9_FREQ_SCALER;
@@ -4935,7 +4936,7 @@ static void __gen6_update_ring_freq(struct drm_device *dev)
/* convert DDR frequency from units of 266.6MHz to bandwidth */
min_ring_freq = mult_frac(min_ring_freq, 8, 3);
if (IS_SKYLAKE(dev)) {
if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
/* Convert GT frequency to 50 HZ units */
min_gpu_freq = dev_priv->rps.min_freq / GEN9_FREQ_SCALER;
max_gpu_freq = dev_priv->rps.max_freq / GEN9_FREQ_SCALER;
@@ -4953,7 +4954,7 @@ static void __gen6_update_ring_freq(struct drm_device *dev)
int diff = max_gpu_freq - gpu_freq;
unsigned int ia_freq = 0, ring_freq = 0;
if (IS_SKYLAKE(dev)) {
if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
/*
* ring_freq = 2 * GT. ring_freq is in 100MHz units
* No floor required for ring frequency on SKL.
@@ -6081,7 +6082,7 @@ static void intel_gen6_powersave_work(struct work_struct *work)
} else if (INTEL_INFO(dev)->gen >= 9) {
gen9_enable_rc6(dev);
gen9_enable_rps(dev);
if (IS_SKYLAKE(dev))
if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
__gen6_update_ring_freq(dev);
} else if (IS_BROADWELL(dev)) {
gen8_enable_rps(dev);