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drm/radeon/mst: port some MST setup code from DAL.

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This ports the DAL timeouts and MST rate calculations
for the hw from the DAL codebase.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dave Airlie 2016-04-06 09:24:48 +10:00 committed by Alex Deucher
parent e131b914c1
commit 4b814aace1
2 changed files with 21 additions and 4 deletions
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2
drivers/gpu/drm/radeon/ni_reg.h
View File

@ -109,6 +109,8 @@
#define NI_DP_MSE_SAT2 0x7398
#define NI_DP_MSE_SAT_UPDATE 0x739c
# define NI_DP_MSE_SAT_UPDATE_MASK 0x3
# define NI_DP_MSE_16_MTP_KEEPOUT 0x100
#define NI_DIG_BE_CNTL 0x7140
# define NI_DIG_FE_SOURCE_SELECT(x) (((x) & 0x7f) << 8)

23
drivers/gpu/drm/radeon/radeon_dp_mst.c
View File

@ -89,8 +89,16 @@ static int radeon_dp_mst_set_stream_attrib(struct radeon_encoder *primary,
WREG32(NI_DP_MSE_SAT_UPDATE + primary->offset, 1);
do {
unsigned value1, value2;
udelay(10);
temp = RREG32(NI_DP_MSE_SAT_UPDATE + primary->offset);
} while ((temp & 0x1) && retries++ < 10000);
value1 = temp & NI_DP_MSE_SAT_UPDATE_MASK;
value2 = temp & NI_DP_MSE_16_MTP_KEEPOUT;
if (!value1 && !value2)
break;
} while (retries++ < 50);
if (retries == 10000)
DRM_ERROR("timed out waitin for SAT update %d\n", primary->offset);
@ -150,7 +158,7 @@ static int radeon_dp_mst_update_stream_attribs(struct radeon_connector *mst_conn
return 0;
}
static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, uint32_t x, uint32_t y)
static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, s64 avg_time_slots_per_mtp)
{
struct drm_device *dev = mst->base.dev;
struct radeon_device *rdev = dev->dev_private;
@ -158,6 +166,8 @@ static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, uint32_t x, ui
uint32_t val, temp;
uint32_t offset = radeon_atom_set_enc_offset(mst_enc->fe);
int retries = 0;
uint32_t x = drm_fixp2int(avg_time_slots_per_mtp);
uint32_t y = drm_fixp2int_ceil((avg_time_slots_per_mtp - x) << 26);
val = NI_DP_MSE_RATE_X(x) | NI_DP_MSE_RATE_Y(y);
@ -165,6 +175,7 @@ static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, uint32_t x, ui
do {
temp = RREG32(NI_DP_MSE_RATE_UPDATE + offset);
udelay(10);
} while ((temp & 0x1) && (retries++ < 10000));
if (retries >= 10000)
@ -394,7 +405,7 @@ radeon_mst_encoder_dpms(struct drm_encoder *encoder, int mode)
struct drm_crtc *crtc;
struct radeon_crtc *radeon_crtc;
int ret, slots;
s64 fixed_pbn, fixed_pbn_per_slot, avg_time_slots_per_mtp;
if (!ASIC_IS_DCE5(rdev)) {
DRM_ERROR("got mst dpms on non-DCE5\n");
return;
@ -456,7 +467,11 @@ radeon_mst_encoder_dpms(struct drm_encoder *encoder, int mode)
mst_enc->enc_active = true;
radeon_dp_mst_update_stream_attribs(radeon_connector->mst_port, primary);
radeon_dp_mst_set_vcp_size(radeon_encoder, slots, 0);
fixed_pbn = drm_int2fixp(mst_enc->pbn);
fixed_pbn_per_slot = drm_int2fixp(radeon_connector->mst_port->mst_mgr.pbn_div);
avg_time_slots_per_mtp = drm_fixp_div(fixed_pbn, fixed_pbn_per_slot);
radeon_dp_mst_set_vcp_size(radeon_encoder, avg_time_slots_per_mtp);
atombios_dig_encoder_setup2(&primary->base, ATOM_ENCODER_CMD_DP_VIDEO_ON, 0,
mst_enc->fe);