From c1289a5c3594cf04caa94ebf0edeb50c62009f1f Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Mon, 25 Mar 2024 19:57:38 +0200 Subject: drm/i915: Pre-populate the cursor physical dma address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling i915_gem_object_get_dma_address() from the vblank evade critical section triggers might_sleep(). While we know that we've already pinned the framebuffer and thus i915_gem_object_get_dma_address() will in fact not sleep in this case, it seems reasonable to keep the unconditional might_sleep() for maximum coverage. So let's instead pre-populate the dma address during fb pinning, which all happens before we enter the vblank evade critical section. We can use u32 for the dma address as this class of hardware doesn't support >32bit addresses. Cc: stable@vger.kernel.org Fixes: 0225a90981c8 ("drm/i915: Make cursor plane registers unlocked") Reported-by: Borislav Petkov Closes: https://lore.kernel.org/intel-gfx/20240227100342.GAZd2zfmYcPS_SndtO@fat_crate.local/ Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240325175738.3440-1-ville.syrjala@linux.intel.com Tested-by: Borislav Petkov (AMD) Reviewed-by: Chaitanya Kumar Borah --- drivers/gpu/drm/i915/display/intel_cursor.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/gpu/drm/i915/display/intel_cursor.c') diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c index f8b33999d43f..0d3da55e1c24 100644 --- a/drivers/gpu/drm/i915/display/intel_cursor.c +++ b/drivers/gpu/drm/i915/display/intel_cursor.c @@ -36,12 +36,10 @@ static u32 intel_cursor_base(const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane_state->uapi.plane->dev); - const struct drm_framebuffer *fb = plane_state->hw.fb; - struct drm_i915_gem_object *obj = intel_fb_obj(fb); u32 base; if (DISPLAY_INFO(dev_priv)->cursor_needs_physical) - base = i915_gem_object_get_dma_address(obj, 0); + base = plane_state->phys_dma_addr; else base = intel_plane_ggtt_offset(plane_state); -- cgit v1.2.3-59-g8ed1b From 29cdef8539c36f4bee0e9af01df9406c32dfd4d4 Mon Sep 17 00:00:00 2001 From: Jouni Högander Date: Tue, 19 Mar 2024 14:33:27 +0200 Subject: drm/i915/display: Implement Wa_16021440873 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch is implementing Wa_16021440873. Bspec: 74151 Signed-off-by: Jouni Högander Reviewed-by: Mika Kahola Link: https://patchwork.freedesktop.org/patch/msgid/20240319123327.1661097-6-jouni.hogander@intel.com --- drivers/gpu/drm/i915/display/intel_cursor.c | 24 +++++++++++++++++++++++- drivers/gpu/drm/i915/display/intel_psr.c | 20 ++++++++++++++------ 2 files changed, 37 insertions(+), 7 deletions(-) (limited to 'drivers/gpu/drm/i915/display/intel_cursor.c') diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c index 0d3da55e1c24..89c26db0730e 100644 --- a/drivers/gpu/drm/i915/display/intel_cursor.c +++ b/drivers/gpu/drm/i915/display/intel_cursor.c @@ -509,6 +509,24 @@ static void i9xx_cursor_disable_sel_fetch_arm(struct intel_plane *plane, intel_de_write_fw(dev_priv, PLANE_SEL_FETCH_CTL(pipe, plane->id), 0); } +static void wa_16021440873(struct intel_plane *plane, + const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state) +{ + struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + u32 ctl = plane_state->ctl; + int et_y_position = drm_rect_height(&crtc_state->pipe_src) + 1; + enum pipe pipe = plane->pipe; + + ctl &= ~MCURSOR_MODE_MASK; + ctl |= MCURSOR_MODE_64_2B; + + intel_de_write_fw(dev_priv, PLANE_SEL_FETCH_CTL(pipe, plane->id), ctl); + + intel_de_write(dev_priv, PIPE_SRCSZ_ERLY_TPT(pipe), + PIPESRC_HEIGHT(et_y_position)); +} + static void i9xx_cursor_update_sel_fetch_arm(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) @@ -529,7 +547,11 @@ static void i9xx_cursor_update_sel_fetch_arm(struct intel_plane *plane, intel_de_write_fw(dev_priv, PLANE_SEL_FETCH_CTL(pipe, plane->id), plane_state->ctl); } else { - i9xx_cursor_disable_sel_fetch_arm(plane, crtc_state); + /* Wa_16021440873 */ + if (crtc_state->enable_psr2_su_region_et) + wa_16021440873(plane, crtc_state, plane_state); + else + i9xx_cursor_disable_sel_fetch_arm(plane, crtc_state); } } diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 747abcb51deb..33e427816be6 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -2079,14 +2079,19 @@ exit: crtc_state->psr2_man_track_ctl = val; } -static u32 psr2_pipe_srcsz_early_tpt_calc(struct intel_crtc_state *crtc_state, - bool full_update) +static u32 +psr2_pipe_srcsz_early_tpt_calc(struct intel_crtc_state *crtc_state, + bool full_update, bool cursor_in_su_area) { int width, height; if (!crtc_state->enable_psr2_su_region_et || full_update) return 0; + if (!cursor_in_su_area) + return PIPESRC_WIDTH(0) | + PIPESRC_HEIGHT(drm_rect_height(&crtc_state->pipe_src)); + width = drm_rect_width(&crtc_state->psr2_su_area); height = drm_rect_height(&crtc_state->psr2_su_area); @@ -2138,7 +2143,8 @@ static void intel_psr2_sel_fetch_pipe_alignment(struct intel_crtc_state *crtc_st */ static void intel_psr2_sel_fetch_et_alignment(struct intel_atomic_state *state, - struct intel_crtc *crtc) + struct intel_crtc *crtc, + bool *cursor_in_su_area) { struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc); struct intel_plane_state *new_plane_state; @@ -2166,6 +2172,7 @@ intel_psr2_sel_fetch_et_alignment(struct intel_atomic_state *state, clip_area_update(&crtc_state->psr2_su_area, &new_plane_state->uapi.dst, &crtc_state->pipe_src); + *cursor_in_su_area = true; } } @@ -2211,7 +2218,7 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state, struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc); struct intel_plane_state *new_plane_state, *old_plane_state; struct intel_plane *plane; - bool full_update = false; + bool full_update = false, cursor_in_su_area = false; int i, ret; if (!crtc_state->enable_psr2_sel_fetch) @@ -2328,7 +2335,7 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state, * drm_atomic_add_affected_planes to ensure visible cursor is added into * affected planes even when cursor is not updated by itself. */ - intel_psr2_sel_fetch_et_alignment(state, crtc); + intel_psr2_sel_fetch_et_alignment(state, crtc, &cursor_in_su_area); intel_psr2_sel_fetch_pipe_alignment(crtc_state); @@ -2392,7 +2399,8 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state, skip_sel_fetch_set_loop: psr2_man_trk_ctl_calc(crtc_state, full_update); crtc_state->pipe_srcsz_early_tpt = - psr2_pipe_srcsz_early_tpt_calc(crtc_state, full_update); + psr2_pipe_srcsz_early_tpt_calc(crtc_state, full_update, + cursor_in_su_area); return 0; } -- cgit v1.2.3-59-g8ed1b From 582dc04b0658ef3b90aeb49cbdd9747c2f1eccc3 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Mon, 25 Mar 2024 19:57:38 +0200 Subject: drm/i915: Pre-populate the cursor physical dma address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling i915_gem_object_get_dma_address() from the vblank evade critical section triggers might_sleep(). While we know that we've already pinned the framebuffer and thus i915_gem_object_get_dma_address() will in fact not sleep in this case, it seems reasonable to keep the unconditional might_sleep() for maximum coverage. So let's instead pre-populate the dma address during fb pinning, which all happens before we enter the vblank evade critical section. We can use u32 for the dma address as this class of hardware doesn't support >32bit addresses. Cc: stable@vger.kernel.org Fixes: 0225a90981c8 ("drm/i915: Make cursor plane registers unlocked") Reported-by: Borislav Petkov Closes: https://lore.kernel.org/intel-gfx/20240227100342.GAZd2zfmYcPS_SndtO@fat_crate.local/ Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240325175738.3440-1-ville.syrjala@linux.intel.com Tested-by: Borislav Petkov (AMD) Reviewed-by: Chaitanya Kumar Borah (cherry picked from commit c1289a5c3594cf04caa94ebf0edeb50c62009f1f) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/display/intel_cursor.c | 4 +--- drivers/gpu/drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_fb_pin.c | 10 ++++++++++ 3 files changed, 12 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/i915/display/intel_cursor.c') diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c index f8b33999d43f..0d3da55e1c24 100644 --- a/drivers/gpu/drm/i915/display/intel_cursor.c +++ b/drivers/gpu/drm/i915/display/intel_cursor.c @@ -36,12 +36,10 @@ static u32 intel_cursor_base(const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane_state->uapi.plane->dev); - const struct drm_framebuffer *fb = plane_state->hw.fb; - struct drm_i915_gem_object *obj = intel_fb_obj(fb); u32 base; if (DISPLAY_INFO(dev_priv)->cursor_needs_physical) - base = i915_gem_object_get_dma_address(obj, 0); + base = plane_state->phys_dma_addr; else base = intel_plane_ggtt_offset(plane_state); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index e67cd5b02e84..9104f18753b4 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -727,6 +727,7 @@ struct intel_plane_state { #define PLANE_HAS_FENCE BIT(0) struct intel_fb_view view; + u32 phys_dma_addr; /* for cursor_needs_physical */ /* Plane pxp decryption state */ bool decrypt; diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.c b/drivers/gpu/drm/i915/display/intel_fb_pin.c index 7b42aef37d2f..b6df9baf481b 100644 --- a/drivers/gpu/drm/i915/display/intel_fb_pin.c +++ b/drivers/gpu/drm/i915/display/intel_fb_pin.c @@ -255,6 +255,16 @@ int intel_plane_pin_fb(struct intel_plane_state *plane_state) return PTR_ERR(vma); plane_state->ggtt_vma = vma; + + /* + * Pre-populate the dma address before we enter the vblank + * evade critical section as i915_gem_object_get_dma_address() + * will trigger might_sleep() even if it won't actually sleep, + * which is the case when the fb has already been pinned. + */ + if (phys_cursor) + plane_state->phys_dma_addr = + i915_gem_object_get_dma_address(intel_fb_obj(fb), 0); } else { struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); -- cgit v1.2.3-59-g8ed1b From 42118c5f6853a28c132ab1ae6efe3893b051e0d2 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Mon, 18 Mar 2024 22:44:08 +0200 Subject: drm/i915: Add SIZE_HINTS property for cursors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Advertize more suitable cursor sizes via the new SIZE_HINTS plane property. We can't really enumerate all supported cursor sizes on the platforms where the cursor height can vary freely, so for simplicity we'll just expose all square+POT sizes between each platform's min and max cursor limits. Depending on the platform this will give us one of three results: - 64x64,128x128,256x256,512x512 - 64x64,128x128,256x256 - 64x64 Cc: Simon Ser Cc: Jonas Ådahl Cc: Daniel Stone Cc: Sameer Lattannavar Cc: Sebastian Wick Cc: Harry Wentland Cc: Pekka Paalanen Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240318204408.9687-3-ville.syrjala@linux.intel.com Reviewed-by: Juha-Pekka Heikkila --- drivers/gpu/drm/i915/display/intel_cursor.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/gpu/drm/i915/display/intel_cursor.c') diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c index 0d3da55e1c24..fc43ea0c3335 100644 --- a/drivers/gpu/drm/i915/display/intel_cursor.c +++ b/drivers/gpu/drm/i915/display/intel_cursor.c @@ -821,6 +821,28 @@ static const struct drm_plane_funcs intel_cursor_plane_funcs = { .format_mod_supported = intel_cursor_format_mod_supported, }; +static void intel_cursor_add_size_hints_property(struct intel_plane *plane) +{ + struct drm_i915_private *i915 = to_i915(plane->base.dev); + const struct drm_mode_config *config = &i915->drm.mode_config; + struct drm_plane_size_hint hints[4]; + int size, max_size, num_hints = 0; + + max_size = min(config->cursor_width, config->cursor_height); + + /* for simplicity only enumerate the supported square+POT sizes */ + for (size = 64; size <= max_size; size *= 2) { + if (drm_WARN_ON(&i915->drm, num_hints >= ARRAY_SIZE(hints))) + break; + + hints[num_hints].width = size; + hints[num_hints].height = size; + num_hints++; + } + + drm_plane_add_size_hints_property(&plane->base, hints, num_hints); +} + struct intel_plane * intel_cursor_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe) @@ -879,6 +901,8 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv, DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180); + intel_cursor_add_size_hints_property(cursor); + zpos = DISPLAY_RUNTIME_INFO(dev_priv)->num_sprites[pipe] + 1; drm_plane_create_zpos_immutable_property(&cursor->base, zpos); -- cgit v1.2.3-59-g8ed1b