Replace device info number of pipes with a bit mask of available
pipes. This will prove handy in the future. There's still a bunch of
future work to do to actually allow a non-consecutive mask of pipes, but
it's a start. No functional changes.
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
Acked-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 4 ++--
drivers/gpu/drm/i915/i915_pci.c | 24 ++++++++++++------------
drivers/gpu/drm/i915/intel_device_info.c | 10 +++++-----
drivers/gpu/drm/i915/intel_device_info.h | 2 +-
4 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f4fc72e2118c..6557cd8ddd7a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2182,9 +2182,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
#define GT_FREQUENCY_MULTIPLIER 50
#define GEN9_FREQ_SCALER 3
-#define INTEL_NUM_PIPES(dev_priv) (INTEL_INFO(dev_priv)->num_pipes)
+#define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->pipe_mask))
-#define HAS_DISPLAY(dev_priv) (INTEL_NUM_PIPES(dev_priv) > 0)
+#define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->pipe_mask != 0)
static inline bool intel_vtd_active(void)
{
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index fbe98a2db88e..17ddc03df005 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -147,7 +147,7 @@
#define I830_FEATURES \
GEN(2), \
.is_mobile = 1, \
- .num_pipes = 2, \
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
.display.has_overlay = 1, \
.display.cursor_needs_physical = 1, \
.display.overlay_needs_physical = 1, \
@@ -165,7 +165,7 @@
#define I845_FEATURES \
GEN(2), \
- .num_pipes = 1, \
+ .pipe_mask = BIT(PIPE_A), \
.display.has_overlay = 1, \
.display.overlay_needs_physical = 1, \
.display.has_gmch = 1, \
@@ -203,7 +203,7 @@ static const struct intel_device_info intel_i865g_info = {
#define GEN3_FEATURES \
GEN(3), \
- .num_pipes = 2, \
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
.display.has_gmch = 1, \
.gpu_reset_clobbers_display = true, \
.engine_mask = BIT(RCS0), \
@@ -287,7 +287,7 @@ static const struct intel_device_info intel_pineview_m_info = {
#define GEN4_FEATURES \
GEN(4), \
- .num_pipes = 2, \
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
.display.has_hotplug = 1, \
.display.has_gmch = 1, \
.gpu_reset_clobbers_display = true, \
@@ -337,7 +337,7 @@ static const struct intel_device_info intel_gm45_info = {
#define GEN5_FEATURES \
GEN(5), \
- .num_pipes = 2, \
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
.display.has_hotplug = 1, \
.engine_mask = BIT(RCS0) | BIT(VCS0), \
.has_snoop = true, \
@@ -363,7 +363,7 @@ static const struct intel_device_info intel_ironlake_m_info = {
#define GEN6_FEATURES \
GEN(6), \
- .num_pipes = 2, \
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
.display.has_hotplug = 1, \
.display.has_fbc = 1, \
.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0), \
@@ -411,7 +411,7 @@ static const struct intel_device_info intel_sandybridge_m_gt2_info = {
#define GEN7_FEATURES \
GEN(7), \
- .num_pipes = 3, \
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C), \
.display.has_hotplug = 1, \
.display.has_fbc = 1, \
.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0), \
@@ -462,7 +462,7 @@ static const struct intel_device_info intel_ivybridge_q_info = {
GEN7_FEATURES,
PLATFORM(INTEL_IVYBRIDGE),
.gt = 2,
- .num_pipes = 0, /* legal, last one wins */
+ .pipe_mask = 0, /* legal, last one wins */
.has_l3_dpf = 1,
};
@@ -470,7 +470,7 @@ static const struct intel_device_info intel_valleyview_info = {
PLATFORM(INTEL_VALLEYVIEW),
GEN(7),
.is_lp = 1,
- .num_pipes = 2,
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B),
.has_runtime_pm = 1,
.has_rc6 = 1,
.has_rps = true,
@@ -560,7 +560,7 @@ static const struct intel_device_info intel_broadwell_gt3_info = {
static const struct intel_device_info intel_cherryview_info = {
PLATFORM(INTEL_CHERRYVIEW),
GEN(8),
- .num_pipes = 3,
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
.display.has_hotplug = 1,
.is_lp = 1,
.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0),
@@ -631,7 +631,7 @@ static const struct intel_device_info intel_skylake_gt4_info = {
.is_lp = 1, \
.display.has_hotplug = 1, \
.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0), \
- .num_pipes = 3, \
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C), \
.has_64bit_reloc = 1, \
.display.has_ddi = 1, \
.has_fpga_dbg = 1, \
@@ -792,7 +792,7 @@ static const struct intel_device_info intel_elkhartlake_info = {
static const struct intel_device_info intel_tigerlake_12_info = {
GEN12_FEATURES,
PLATFORM(INTEL_TIGERLAKE),
- .num_pipes = 4,
+ .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
.require_force_probe = 1,
.display.has_modular_fia = 1,
.engine_mask =
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index d9b5baaef5d0..50b05a5de53b 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -896,7 +896,7 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
if (i915_modparams.disable_display) {
DRM_INFO("Display disabled (module parameter)\n");
- info->num_pipes = 0;
+ info->pipe_mask = 0;
} else if (HAS_DISPLAY(dev_priv) &&
(IS_GEN_RANGE(dev_priv, 7, 8)) &&
HAS_PCH_SPLIT(dev_priv)) {
@@ -917,14 +917,14 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
(HAS_PCH_CPT(dev_priv) &&
!(sfuse_strap & SFUSE_STRAP_FUSE_LOCK))) {
DRM_INFO("Display fused off, disabling\n");
- info->num_pipes = 0;
+ info->pipe_mask = 0;
} else if (fuse_strap & IVB_PIPE_C_DISABLE) {
DRM_INFO("PipeC fused off\n");
- info->num_pipes -= 1;
+ info->pipe_mask &= ~BIT(PIPE_C);
}
} else if (HAS_DISPLAY(dev_priv) && INTEL_GEN(dev_priv) >= 9) {
u32 dfsm = I915_READ(SKL_DFSM);
- u8 enabled_mask = BIT(info->num_pipes) - 1;
+ u8 enabled_mask = info->pipe_mask;
if (dfsm & SKL_DFSM_PIPE_A_DISABLE)
enabled_mask &= ~BIT(PIPE_A);
@@ -945,7 +945,7 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
DRM_ERROR("invalid pipe fuse configuration: enabled_mask=0x%x\n",
enabled_mask);
else
- info->num_pipes = hweight8(enabled_mask);
+ info->pipe_mask = enabled_mask;
}
/* Initialize slice/subslice/EU info */
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 92e0c2e0954c..d4c288860aed 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -161,7 +161,7 @@ struct intel_device_info {
u32 display_mmio_offset;
- u8 num_pipes;
+ u8 pipe_mask;
#define DEFINE_FLAG(name) u8 name:1
DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
--
2.20.1
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