Define function to compare the state and if mismatch is detected dump both the states.
Signed-off-by: Suraj Kandpal <[email protected]> Reviewed-by: Arun R Murthy <[email protected]> --- drivers/gpu/drm/i915/display/intel_display.c | 33 +++++++++++++++++++- drivers/gpu/drm/i915/display/intel_lt_phy.c | 30 ++++++++++++++++++ drivers/gpu/drm/i915/display/intel_lt_phy.h | 6 ++++ 3 files changed, 68 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index a8b4619de347..c4452ed4a42d 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -99,6 +99,7 @@ #include "intel_hdmi.h" #include "intel_hotplug.h" #include "intel_link_bw.h" +#include "intel_lt_phy.h" #include "intel_lvds.h" #include "intel_lvds_regs.h" #include "intel_modeset_setup.h" @@ -4969,6 +4970,24 @@ static bool allow_vblank_delay_fastset(const struct intel_crtc_state *old_crtc_s !intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DSI); } +static void +pipe_config_lt_phy_pll_mismatch(struct drm_printer *p, bool fastset, + const struct intel_crtc *crtc, + const char *name, + const struct intel_lt_phy_pll_state *a, + const struct intel_lt_phy_pll_state *b) +{ + struct intel_display *display = to_intel_display(crtc); + char *chipname = "LTPHY"; + + pipe_config_mismatch(p, fastset, crtc, name, chipname); + + drm_printf(p, "expected:\n"); + intel_lt_phy_dump_hw_state(display, a); + drm_printf(p, "found:\n"); + intel_lt_phy_dump_hw_state(display, b); +} + bool intel_pipe_config_compare(const struct intel_crtc_state *current_config, const struct intel_crtc_state *pipe_config, @@ -5093,6 +5112,16 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, } \ } while (0) +#define PIPE_CONF_CHECK_PLL_LT(name) do { \ + if (!intel_lt_phy_pll_compare_hw_state(¤t_config->name, \ + &pipe_config->name)) { \ + pipe_config_lt_phy_pll_mismatch(&p, fastset, crtc, __stringify(name), \ + ¤t_config->name, \ + &pipe_config->name); \ + ret = false; \ + } \ +} while (0) + #define PIPE_CONF_CHECK_TIMINGS(name) do { \ PIPE_CONF_CHECK_I(name.crtc_hdisplay); \ PIPE_CONF_CHECK_I(name.crtc_htotal); \ @@ -5317,7 +5346,9 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, PIPE_CONF_CHECK_PLL(dpll_hw_state); /* FIXME convert MTL+ platforms over to dpll_mgr */ - if (DISPLAY_VER(display) >= 14) + if (HAS_LT_PHY(display)) + PIPE_CONF_CHECK_PLL_LT(dpll_hw_state.ltpll); + else if (DISPLAY_VER(display) >= 14) PIPE_CONF_CHECK_PLL_CX0(dpll_hw_state.cx0pll); PIPE_CONF_CHECK_X(dsi_pll.ctrl); diff --git a/drivers/gpu/drm/i915/display/intel_lt_phy.c b/drivers/gpu/drm/i915/display/intel_lt_phy.c index 9ee862f95209..45130fdc6273 100644 --- a/drivers/gpu/drm/i915/display/intel_lt_phy.c +++ b/drivers/gpu/drm/i915/display/intel_lt_phy.c @@ -1839,6 +1839,36 @@ void intel_lt_phy_set_signal_levels(struct intel_encoder *encoder, intel_lt_phy_transaction_end(encoder, wakeref); } +void intel_lt_phy_dump_hw_state(struct intel_display *display, + const struct intel_lt_phy_pll_state *hw_state) +{ + int i, j; + + drm_dbg_kms(display->drm, "lt_phy_pll_hw_state:\n"); + for (i = 0; i < 3; i++) { + drm_dbg_kms(display->drm, "config[%d] = 0x%.4x,\n", + i, hw_state->config[i]); + } + + for (i = 0; i <= 12; i++) + for (j = 3; j >= 0; j--) + drm_dbg_kms(display->drm, "vdr_data[%d][%d] = 0x%.4x,\n", + i, j, hw_state->data[i][j]); +} + +bool +intel_lt_phy_pll_compare_hw_state(const struct intel_lt_phy_pll_state *a, + const struct intel_lt_phy_pll_state *b) +{ + if (memcmp(&a->config, &b->config, sizeof(a->config)) != 0) + return false; + + if (memcmp(&a->data, &b->data, sizeof(a->data)) != 0) + return false; + + return true; +} + void intel_xe3plpd_pll_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { diff --git a/drivers/gpu/drm/i915/display/intel_lt_phy.h b/drivers/gpu/drm/i915/display/intel_lt_phy.h index 6e67ae78801c..e93e5becc316 100644 --- a/drivers/gpu/drm/i915/display/intel_lt_phy.h +++ b/drivers/gpu/drm/i915/display/intel_lt_phy.h @@ -8,6 +8,7 @@ #include <linux/types.h> +struct intel_display; struct intel_encoder; struct intel_crtc_state; struct intel_lt_phy_pll_state; @@ -22,6 +23,11 @@ int intel_lt_phy_calc_port_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); void intel_lt_phy_set_signal_levels(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); +void intel_lt_phy_dump_hw_state(struct intel_display *display, + const struct intel_lt_phy_pll_state *hw_state); +bool +intel_lt_phy_pll_compare_hw_state(const struct intel_lt_phy_pll_state *a, + const struct intel_lt_phy_pll_state *b); void intel_xe3plpd_pll_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); void intel_xe3plpd_pll_disable(struct intel_encoder *encoder); -- 2.34.1
