From 23bd15ec662344dc10e9918fdd0dbc58bc71526d Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Wed, 14 Dec 2011 21:10:06 -0200 Subject: drm/i915: Fix TV Out refresh rate. TV Out refresh rate was half of the specification for almost all modes. Due to this reason pixel clock was so low for some modes causing flickering screen. Signed-off-by: Rodrigo Vivi Reviewed-by: Jesse Barnes Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_tv.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index f3c6a9a8b081..2b1fcadbc5ce 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -417,7 +417,7 @@ static const struct tv_mode tv_modes[] = { { .name = "NTSC-M", .clock = 108000, - .refresh = 29970, + .refresh = 59940, .oversample = TV_OVERSAMPLE_8X, .component_only = 0, /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */ @@ -460,7 +460,7 @@ static const struct tv_mode tv_modes[] = { { .name = "NTSC-443", .clock = 108000, - .refresh = 29970, + .refresh = 59940, .oversample = TV_OVERSAMPLE_8X, .component_only = 0, /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */ @@ -502,7 +502,7 @@ static const struct tv_mode tv_modes[] = { { .name = "NTSC-J", .clock = 108000, - .refresh = 29970, + .refresh = 59940, .oversample = TV_OVERSAMPLE_8X, .component_only = 0, @@ -545,7 +545,7 @@ static const struct tv_mode tv_modes[] = { { .name = "PAL-M", .clock = 108000, - .refresh = 29970, + .refresh = 59940, .oversample = TV_OVERSAMPLE_8X, .component_only = 0, @@ -589,7 +589,7 @@ static const struct tv_mode tv_modes[] = { /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */ .name = "PAL-N", .clock = 108000, - .refresh = 25000, + .refresh = 50000, .oversample = TV_OVERSAMPLE_8X, .component_only = 0, @@ -634,7 +634,7 @@ static const struct tv_mode tv_modes[] = { /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */ .name = "PAL", .clock = 108000, - .refresh = 25000, + .refresh = 50000, .oversample = TV_OVERSAMPLE_8X, .component_only = 0, @@ -821,7 +821,7 @@ static const struct tv_mode tv_modes[] = { { .name = "1080i@50Hz", .clock = 148800, - .refresh = 25000, + .refresh = 50000, .oversample = TV_OVERSAMPLE_2X, .component_only = 1, @@ -847,7 +847,7 @@ static const struct tv_mode tv_modes[] = { { .name = "1080i@60Hz", .clock = 148800, - .refresh = 30000, + .refresh = 60000, .oversample = TV_OVERSAMPLE_2X, .component_only = 1, -- cgit v1.2.3 From 55a6713b3f30a5024056027e9dbf03ac8f13bfc9 Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Thu, 15 Dec 2011 14:47:33 -0200 Subject: drm/i915: Removing TV Out modes. These modes are no longer needed or are not according to TV timing standards. Intel PRM Vol 3 - Display Registers Updated - Section 5 TV-Out Programming / 5.2.1 Television Standards / 5.2.1.1 Timing tables Signed-off-by: Rodrigo Vivi Reviewed-by: Jesse Barnes Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_tv.c | 122 ---------------------------------------- 1 file changed, 122 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index 2b1fcadbc5ce..1571be37ce3e 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -673,78 +673,6 @@ static const struct tv_mode tv_modes[] = { .filter_table = filter_table, }, - { - .name = "480p@59.94Hz", - .clock = 107520, - .refresh = 59940, - .oversample = TV_OVERSAMPLE_4X, - .component_only = 1, - - .hsync_end = 64, .hblank_end = 122, - .hblank_start = 842, .htotal = 857, - - .progressive = true, .trilevel_sync = false, - - .vsync_start_f1 = 12, .vsync_start_f2 = 12, - .vsync_len = 12, - - .veq_ena = false, - - .vi_end_f1 = 44, .vi_end_f2 = 44, - .nbr_end = 479, - - .burst_ena = false, - - .filter_table = filter_table, - }, - { - .name = "480p@60Hz", - .clock = 107520, - .refresh = 60000, - .oversample = TV_OVERSAMPLE_4X, - .component_only = 1, - - .hsync_end = 64, .hblank_end = 122, - .hblank_start = 842, .htotal = 856, - - .progressive = true, .trilevel_sync = false, - - .vsync_start_f1 = 12, .vsync_start_f2 = 12, - .vsync_len = 12, - - .veq_ena = false, - - .vi_end_f1 = 44, .vi_end_f2 = 44, - .nbr_end = 479, - - .burst_ena = false, - - .filter_table = filter_table, - }, - { - .name = "576p", - .clock = 107520, - .refresh = 50000, - .oversample = TV_OVERSAMPLE_4X, - .component_only = 1, - - .hsync_end = 64, .hblank_end = 139, - .hblank_start = 859, .htotal = 863, - - .progressive = true, .trilevel_sync = false, - - .vsync_start_f1 = 10, .vsync_start_f2 = 10, - .vsync_len = 10, - - .veq_ena = false, - - .vi_end_f1 = 48, .vi_end_f2 = 48, - .nbr_end = 575, - - .burst_ena = false, - - .filter_table = filter_table, - }, { .name = "720p@60Hz", .clock = 148800, @@ -769,30 +697,6 @@ static const struct tv_mode tv_modes[] = { .filter_table = filter_table, }, - { - .name = "720p@59.94Hz", - .clock = 148800, - .refresh = 59940, - .oversample = TV_OVERSAMPLE_2X, - .component_only = 1, - - .hsync_end = 80, .hblank_end = 300, - .hblank_start = 1580, .htotal = 1651, - - .progressive = true, .trilevel_sync = true, - - .vsync_start_f1 = 10, .vsync_start_f2 = 10, - .vsync_len = 10, - - .veq_ena = false, - - .vi_end_f1 = 29, .vi_end_f2 = 29, - .nbr_end = 719, - - .burst_ena = false, - - .filter_table = filter_table, - }, { .name = "720p@50Hz", .clock = 148800, @@ -868,32 +772,6 @@ static const struct tv_mode tv_modes[] = { .burst_ena = false, - .filter_table = filter_table, - }, - { - .name = "1080i@59.94Hz", - .clock = 148800, - .refresh = 29970, - .oversample = TV_OVERSAMPLE_2X, - .component_only = 1, - - .hsync_end = 88, .hblank_end = 235, - .hblank_start = 2155, .htotal = 2201, - - .progressive = false, .trilevel_sync = true, - - .vsync_start_f1 = 4, .vsync_start_f2 = 5, - .vsync_len = 10, - - .veq_ena = true, .veq_start_f1 = 4, - .veq_start_f2 = 4, .veq_len = 10, - - - .vi_end_f1 = 21, .vi_end_f2 = 22, - .nbr_end = 539, - - .burst_ena = false, - .filter_table = filter_table, }, }; -- cgit v1.2.3 From ba68e086223a5f149f37bf8692c8cdbf1b0ba3ef Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 6 Jan 2012 19:45:34 -0200 Subject: drm/i915/sdvo: always set positive sync polarity This is a revert of 81a14b46846fea0741902e8d8dfcc6c6c78154c8. We already set the mode polarity using the SDVO commands with struct intel_sdvo_dtd. We have at least 3 bugs that get fixed with this patch. The documentation, despite not clear, can also be interpreted in a way that suggests this patch is needed. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=15766 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42174 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43333 Cc: stable@kernel.org Reviewed-by: Eric Anholt Reviewed-by: Jesse Barnes Signed-off-by: Paulo Zanoni Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_sdvo.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index f7b9268df266..e334ec33a47d 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1066,15 +1066,13 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, /* Set the SDVO control regs. */ if (INTEL_INFO(dev)->gen >= 4) { - sdvox = 0; + /* The real mode polarity is set by the SDVO commands, using + * struct intel_sdvo_dtd. */ + sdvox = SDVO_VSYNC_ACTIVE_HIGH | SDVO_HSYNC_ACTIVE_HIGH; if (intel_sdvo->is_hdmi) sdvox |= intel_sdvo->color_range; if (INTEL_INFO(dev)->gen < 5) sdvox |= SDVO_BORDER_ENABLE; - if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) - sdvox |= SDVO_VSYNC_ACTIVE_HIGH; - if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) - sdvox |= SDVO_HSYNC_ACTIVE_HIGH; } else { sdvox = I915_READ(intel_sdvo->sdvo_reg); switch (intel_sdvo->sdvo_reg) { -- cgit v1.2.3 From a05a586239c66a256ea1fbae859e742e4c91c8d9 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 20 Dec 2011 08:54:15 -0800 Subject: drm/i915: Print debugfs object list sizes in KiB instead of bytes. They're all in increments of pages, so this just makes it easier on the eyes. Signed-off-by: Eric Anholt Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 11807989f918..f8b8ed22b4dc 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -121,11 +121,11 @@ static const char *cache_level_str(int type) static void describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) { - seq_printf(m, "%p: %s%s %8zd %04x %04x %d %d%s%s%s", + seq_printf(m, "%p: %s%s %8zdKiB %04x %04x %d %d%s%s%s", &obj->base, get_pin_flag(obj), get_tiling_flag(obj), - obj->base.size, + obj->base.size / 1024, obj->base.read_domains, obj->base.write_domain, obj->last_rendering_seqno, -- cgit v1.2.3 From 5e5b7fa2ad84f7806d0c7f5af8e1440bc91b4ec7 Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Sat, 7 Jan 2012 23:40:34 -0200 Subject: drm/i915: simplify pipe checking This is also handled by i915_reg.h, so just reuse this trick to reduce universe entropy. Signed-off-by: Eugeni Dodonov Reviewed-by: Jesse Barnes Reviewed-by: Cyril Brulebois Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_suspend.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 7886e4fb60e3..c0b945cdcd9a 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -28,6 +28,7 @@ #include "drm.h" #include "i915_drm.h" #include "intel_drv.h" +#include "i915_reg.h" static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe) { @@ -35,7 +36,7 @@ static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe) u32 dpll_reg; if (HAS_PCH_SPLIT(dev)) - dpll_reg = (pipe == PIPE_A) ? _PCH_DPLL_A : _PCH_DPLL_B; + dpll_reg = PCH_DPLL(pipe); else dpll_reg = (pipe == PIPE_A) ? _DPLL_A : _DPLL_B; -- cgit v1.2.3 From 07c1e8c1462fa7324de4c36ae9e55da2abd79cee Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Sat, 7 Jan 2012 23:40:35 -0200 Subject: drm/i915: handle 3rd pipe We don't need to check 3rd pipe specifically, as it shares PLL with some other one. Signed-off-by: Eugeni Dodonov Reviewed-by: Jesse Barnes Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_suspend.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index c0b945cdcd9a..30d924f447c0 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -35,6 +35,10 @@ static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe) struct drm_i915_private *dev_priv = dev->dev_private; u32 dpll_reg; + /* On IVB, 3rd pipe shares PLL with another one */ + if (pipe > 1) + return false; + if (HAS_PCH_SPLIT(dev)) dpll_reg = PCH_DPLL(pipe); else -- cgit v1.2.3 From 8ca4013d702dae4913fbb625aabf4c2966cdf1f0 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Tue, 25 Oct 2011 15:42:21 -0700 Subject: CHROMIUM: i915: Add DMI override to skip CRT initialization on ZGB This is the method used to override LVDS in intel_lvds and appears to be an effective way to ensure that the driver does not enable VGA hotplug. This is the same patch from 2.6.32 kernel in R12 but ported to 2.6.38, will send upstream next. Signed-off-by: Duncan Laurie BUG=chrome-os-partner:117 TEST=Check PORT_HOTPLUG_EN to see if hotplug interrupt is disabled. Run the following command as root, specifically looking at bit 9: mmio_read32 $[$(pci_read32 0 2 0 0x10) + 0x61110] = 0x00000000 Change-Id: Id8240f9fb31d058d8d79ee72f7b4615c43893f5a Reviewed-on: http://gerrit.chromium.org/gerrit/1390 Reviewed-by: Olof Johansson Tested-by: Duncan Laurie Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_crt.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index fee0ad02c6d0..dd729d46a61f 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -24,6 +24,7 @@ * Eric Anholt */ +#include #include #include #include "drmP.h" @@ -540,6 +541,24 @@ static const struct drm_encoder_funcs intel_crt_enc_funcs = { .destroy = intel_encoder_destroy, }; +static int __init intel_no_crt_dmi_callback(const struct dmi_system_id *id) +{ + DRM_DEBUG_KMS("Skipping CRT initialization for %s\n", id->ident); + return 1; +} + +static const struct dmi_system_id intel_no_crt[] = { + { + .callback = intel_no_crt_dmi_callback, + .ident = "ACER ZGB", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ACER"), + DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"), + }, + }, + { } +}; + void intel_crt_init(struct drm_device *dev) { struct drm_connector *connector; @@ -547,6 +566,10 @@ void intel_crt_init(struct drm_device *dev) struct intel_connector *intel_connector; struct drm_i915_private *dev_priv = dev->dev_private; + /* Skip machines without VGA that falsely report hotplug events */ + if (dmi_check_system(intel_no_crt)) + return; + crt = kzalloc(sizeof(struct intel_crt), GFP_KERNEL); if (!crt) return; -- cgit v1.2.3 From 44306ab302687b519a31aa498b954c1e26f95a6b Mon Sep 17 00:00:00 2001 From: Joel Sass Date: Tue, 10 Jan 2012 13:03:55 -0500 Subject: drm/i915: Add Clientron E830 to the ignore LVDS list Signed-off-by: Joel Sass Reviewed-by: Adam Jackson Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_lvds.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index e44191132ac4..798f6e1aa544 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -708,6 +708,14 @@ static const struct dmi_system_id intel_no_lvds[] = { }, }, { + .callback = intel_no_lvds_dmi_callback, + .ident = "Clientron E830", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Clientron"), + DMI_MATCH(DMI_PRODUCT_NAME, "E830"), + }, + }, + { .callback = intel_no_lvds_dmi_callback, .ident = "Asus EeeBox PC EB1007", .matches = { -- cgit v1.2.3 From 7885d2052bd94395e337709cfba093a41f273ff1 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 12 Jan 2012 14:51:17 -0800 Subject: drm/i915: mask transcoder select bits before setting them on LVDS The transcoder port may changed from mode set to mode set, so make sure to mask out the selection bits before setting the right ones or we'll get black screens when going from transcoder B to A. Tested-by: Vincent Vanackere Signed-off-by: Jesse Barnes Reviewed-by: Keith Packard Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_display.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 2a3f707caab8..96cea08b10ce 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5808,12 +5808,15 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, if (is_lvds) { temp = I915_READ(PCH_LVDS); temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; - if (HAS_PCH_CPT(dev)) + if (HAS_PCH_CPT(dev)) { + temp &= ~PORT_TRANS_SEL_MASK; temp |= PORT_TRANS_SEL_CPT(pipe); - else if (pipe == 1) - temp |= LVDS_PIPEB_SELECT; - else - temp &= ~LVDS_PIPEB_SELECT; + } else { + if (pipe == 1) + temp |= LVDS_PIPEB_SELECT; + else + temp &= ~LVDS_PIPEB_SELECT; + } /* set the corresponsding LVDS_BORDER bit */ temp |= dev_priv->lvds_border_bits; -- cgit v1.2.3 From 96c0a2f52c45d8ec0a2b70810f4693530feaba5d Mon Sep 17 00:00:00 2001 From: Rohit Jain Date: Thu, 12 Jan 2012 12:19:44 +0530 Subject: drm/i915: VBT Parser cleanup for eDP block Support for parsing parameters for S3D support and T3 optimization support is implemented. The order for the bdb_edp struct was also made similar to that indicated in spec. Signed-off-by: Rohit Jain Reviewed-by: Shobhit Kumar Reviewed-by: Vijay A. Purushothaman Reviewed-by: Eugeni Dodonov Acked-by: Jesse Barnes Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_bios.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 8af3735e27c6..dbda6e3bdf07 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -467,8 +467,12 @@ struct edp_link_params { struct bdb_edp { struct edp_power_seq power_seqs[16]; u32 color_depth; - u32 sdrrs_msa_timing_delay; struct edp_link_params link_params[16]; + u32 sdrrs_msa_timing_delay; + + /* ith bit indicates enabled/disabled for (i+1)th panel */ + u16 edp_s3d_feature; + u16 edp_t3_optimization; } __attribute__ ((packed)); void intel_setup_bios(struct drm_device *dev); -- cgit v1.2.3 From 00c2064b7766c4e24af42e21da1903aedc8ca4c0 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Fri, 13 Jan 2012 15:48:39 -0800 Subject: drm/i915: sprite init failure on pre-SNB is not a failure We can call the plane init function unconditionally, but don't need to complain if it fails, since that will only happen if we're out of memory (and other things will fail) or if we're on the wrong platform (which is ok). And remove the DRM_ERRORs from the sprite code itself to avoid dmesg spam. Signed-off-by: Jesse Barnes Reviewed-by: Keith Packard Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_display.c | 9 +++------ drivers/gpu/drm/i915/intel_sprite.c | 8 ++------ 2 files changed, 5 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 96cea08b10ce..b3b51c43dad0 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9028,12 +9028,9 @@ void intel_modeset_init(struct drm_device *dev) for (i = 0; i < dev_priv->num_pipe; i++) { intel_crtc_init(dev, i); - if (HAS_PCH_SPLIT(dev)) { - ret = intel_plane_init(dev, i); - if (ret) - DRM_ERROR("plane %d init failed: %d\n", - i, ret); - } + ret = intel_plane_init(dev, i); + if (ret) + DRM_DEBUG_KMS("plane %d init failed: %d\n", i, ret); } /* Just disable it once at startup */ diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index d13989fda501..2288abf88cce 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -466,10 +466,8 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, mutex_lock(&dev->struct_mutex); ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); - if (ret) { - DRM_ERROR("failed to pin object\n"); + if (ret) goto out_unlock; - } intel_plane->obj = obj; @@ -632,10 +630,8 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe) unsigned long possible_crtcs; int ret; - if (!(IS_GEN6(dev) || IS_GEN7(dev))) { - DRM_ERROR("new plane code only for SNB+\n"); + if (!(IS_GEN6(dev) || IS_GEN7(dev))) return -ENODEV; - } intel_plane = kzalloc(sizeof(struct intel_plane), GFP_KERNEL); if (!intel_plane) -- cgit v1.2.3 From 8109021313c7a3d8947677391ce6ab9cd0bb1d28 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 13 Jan 2012 16:20:06 -0800 Subject: drm/i915: convert force_wake_get to func pointer in the gpu reset code This was forgotten in the original multi-threaded forcewake conversion: commit 8d715f0024f64ad1b1be85d8c081cf577944c847 Author: Keith Packard Date: Fri Nov 18 20:39:01 2011 -0800 drm/i915: add multi-threaded forcewake support Signed-Off-by: Daniel Vetter Reviewed-by: Eugeni Dodonov Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 8f7187915b0d..46c36f5cafb1 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -645,7 +645,7 @@ int i915_reset(struct drm_device *dev, u8 flags) ret = gen6_do_reset(dev, flags); /* If reset with a user forcewake, try to restore */ if (atomic_read(&dev_priv->forcewake_count)) - __gen6_gt_force_wake_get(dev_priv); + dev_priv->display.force_wake_get(dev_priv); break; case 5: ret = ironlake_do_reset(dev, flags); -- cgit v1.2.3 From 9f1f46a45a681d357d1ceedecec3671a5ae957f4 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 14 Dec 2011 13:57:03 +0100 Subject: drm/i915: protect force_wake_(get|put) with the gt_lock The problem this patch solves is that the forcewake accounting necessary for register reads is protected by dev->struct_mutex. But the hangcheck and error_capture code need to access registers without grabbing this mutex because we hold it while waiting for the gpu. So a new lock is required. Because currently the error_state capture is called from the error irq handler and the hangcheck code runs from a timer, it needs to be an irqsafe spinlock (note that the registers used by the irq handler (neglecting the error handling part) only uses registers that don't need the forcewake dance). We could tune this down to a normal spinlock when we rework the error_state capture and hangcheck code to run from a workqueue. But we don't have any read in a fastpath that needs forcewake, so I've decided to not care much about overhead. This prevents tests/gem_hangcheck_forcewake from i-g-t from killing my snb on recent kernels - something must have slightly changed the timings. On previous kernels it only trigger a WARN about the broken locking. v2: Drop the previous patch for the register writes. v3: Improve the commit message per Chris Wilson's suggestions. Signed-Off-by: Daniel Vetter Reviewed-by: Chris Wilson Reviewed-by: Eugeni Dodonov Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_debugfs.c | 8 ++++++-- drivers/gpu/drm/i915/i915_dma.c | 1 + drivers/gpu/drm/i915/i915_drv.c | 18 ++++++++++++------ drivers/gpu/drm/i915/i915_drv.h | 10 +++++++--- 4 files changed, 26 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index f8b8ed22b4dc..a017b989b1ab 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1398,9 +1398,13 @@ static int i915_gen6_forcewake_count_info(struct seq_file *m, void *data) struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; + unsigned forcewake_count; - seq_printf(m, "forcewake count = %d\n", - atomic_read(&dev_priv->forcewake_count)); + spin_lock_irq(&dev_priv->gt_lock); + forcewake_count = dev_priv->forcewake_count; + spin_unlock_irq(&dev_priv->gt_lock); + + seq_printf(m, "forcewake count = %u\n", forcewake_count); return 0; } diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 5f4d5893e983..ddfe3d902b2a 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -2045,6 +2045,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) if (!IS_I945G(dev) && !IS_I945GM(dev)) pci_enable_msi(dev->pdev); + spin_lock_init(&dev_priv->gt_lock); spin_lock_init(&dev_priv->irq_lock); spin_lock_init(&dev_priv->error_lock); spin_lock_init(&dev_priv->rps_lock); diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 46c36f5cafb1..bdf6a1b36223 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -368,11 +368,12 @@ void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv) */ void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv) { - WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex)); + unsigned long irqflags; - /* Forcewake is atomic in case we get in here without the lock */ - if (atomic_add_return(1, &dev_priv->forcewake_count) == 1) + spin_lock_irqsave(&dev_priv->gt_lock, irqflags); + if (dev_priv->forcewake_count++ == 0) dev_priv->display.force_wake_get(dev_priv); + spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); } void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv) @@ -392,10 +393,12 @@ void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv) */ void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv) { - WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex)); + unsigned long irqflags; - if (atomic_dec_and_test(&dev_priv->forcewake_count)) + spin_lock_irqsave(&dev_priv->gt_lock, irqflags); + if (--dev_priv->forcewake_count == 0) dev_priv->display.force_wake_put(dev_priv); + spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); } void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv) @@ -626,6 +629,7 @@ int i915_reset(struct drm_device *dev, u8 flags) * need to */ bool need_display = true; + unsigned long irqflags; int ret; if (!i915_try_reset) @@ -644,8 +648,10 @@ int i915_reset(struct drm_device *dev, u8 flags) case 6: ret = gen6_do_reset(dev, flags); /* If reset with a user forcewake, try to restore */ - if (atomic_read(&dev_priv->forcewake_count)) + spin_lock_irqsave(&dev_priv->gt_lock, irqflags); + if (dev_priv->forcewake_count) dev_priv->display.force_wake_get(dev_priv); + spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); break; case 5: ret = ironlake_do_reset(dev, flags); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 602bc80baabb..9689ca38b2b3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -288,7 +288,13 @@ typedef struct drm_i915_private { int relative_constants_mode; void __iomem *regs; - u32 gt_fifo_count; + /** gt_fifo_count and the subsequent register write are synchronized + * with dev->struct_mutex. */ + unsigned gt_fifo_count; + /** forcewake_count is protected by gt_lock */ + unsigned forcewake_count; + /** gt_lock is also taken in irq contexts. */ + struct spinlock gt_lock; struct intel_gmbus { struct i2c_adapter adapter; @@ -741,8 +747,6 @@ typedef struct drm_i915_private { struct drm_property *broadcast_rgb_property; struct drm_property *force_audio_property; - - atomic_t forcewake_count; } drm_i915_private_t; enum i915_cache_level { -- cgit v1.2.3 From b6e45f866465f42b53d803b0c574da0fc508a0e9 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Fri, 6 Jan 2012 11:34:04 -0800 Subject: drm/i915: Move reset forcewake processing to gen6_do_reset No reason to have half of the reset split from the other half. Signed-off-by: Keith Packard Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index bdf6a1b36223..a6fcd941e3ab 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -600,9 +600,17 @@ static int ironlake_do_reset(struct drm_device *dev, u8 flags) static int gen6_do_reset(struct drm_device *dev, u8 flags) { struct drm_i915_private *dev_priv = dev->dev_private; + int ret; + unsigned long irqflags; I915_WRITE(GEN6_GDRST, GEN6_GRDOM_FULL); - return wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500); + ret = wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500); + /* If reset with a user forcewake, try to restore */ + spin_lock_irqsave(&dev_priv->gt_lock, irqflags); + if (dev_priv->forcewake_count) + dev_priv->display.force_wake_get(dev_priv); + spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); + return ret; } /** @@ -629,7 +637,6 @@ int i915_reset(struct drm_device *dev, u8 flags) * need to */ bool need_display = true; - unsigned long irqflags; int ret; if (!i915_try_reset) @@ -647,11 +654,6 @@ int i915_reset(struct drm_device *dev, u8 flags) case 7: case 6: ret = gen6_do_reset(dev, flags); - /* If reset with a user forcewake, try to restore */ - spin_lock_irqsave(&dev_priv->gt_lock, irqflags); - if (dev_priv->forcewake_count) - dev_priv->display.force_wake_get(dev_priv); - spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); break; case 5: ret = ironlake_do_reset(dev, flags); -- cgit v1.2.3 From 286fed412a134e76be55899bc628c6fa59cb70da Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Fri, 6 Jan 2012 11:44:11 -0800 Subject: drm/i915: Hold gt_lock during reset This ensures that no register reads occur while the forcewake state of the hardware is indeterminate during the reset operation. Signed-off-by: Keith Packard Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index a6fcd941e3ab..062d1d27f704 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -603,12 +603,31 @@ static int gen6_do_reset(struct drm_device *dev, u8 flags) int ret; unsigned long irqflags; - I915_WRITE(GEN6_GDRST, GEN6_GRDOM_FULL); - ret = wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500); - /* If reset with a user forcewake, try to restore */ + /* Hold gt_lock across reset to prevent any register access + * with forcewake not set correctly + */ spin_lock_irqsave(&dev_priv->gt_lock, irqflags); + + /* Reset the chip */ + + /* GEN6_GDRST is not in the gt power well, no need to check + * for fifo space for the write or forcewake the chip for + * the read + */ + I915_WRITE_NOTRACE(GEN6_GDRST, GEN6_GRDOM_FULL); + + /* Spin waiting for the device to ack the reset request */ + ret = wait_for((I915_READ_NOTRACE(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500); + + /* If reset with a user forcewake, try to restore, otherwise turn it off */ if (dev_priv->forcewake_count) dev_priv->display.force_wake_get(dev_priv); + else + dev_priv->display.force_wake_put(dev_priv); + + /* Restore fifo count */ + dev_priv->gt_fifo_count = I915_READ_NOTRACE(GT_FIFO_FREE_ENTRIES); + spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); return ret; } -- cgit v1.2.3 From c937504e2b96af3b281b1ef859e063ef4af656c1 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Fri, 6 Jan 2012 11:48:38 -0800 Subject: drm/i915: Hold gt_lock across forcewake register reads Along with the previous patch to make the reset operation protected by the gt_lock as well, this ensures that all register read operations will occur with the forcewake hardware enabled. As an added bonus, this makes read operations more efficient by taking the spinlock only once per read instead of twice. Signed-off-by: Keith Packard Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 062d1d27f704..308f81913562 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -954,9 +954,14 @@ MODULE_LICENSE("GPL and additional rights"); u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \ u##x val = 0; \ if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \ - gen6_gt_force_wake_get(dev_priv); \ + unsigned long irqflags; \ + spin_lock_irqsave(&dev_priv->gt_lock, irqflags); \ + if (dev_priv->forcewake_count == 0) \ + dev_priv->display.force_wake_get(dev_priv); \ val = read##y(dev_priv->regs + reg); \ - gen6_gt_force_wake_put(dev_priv); \ + if (dev_priv->forcewake_count == 0) \ + dev_priv->display.force_wake_put(dev_priv); \ + spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); \ } else { \ val = read##y(dev_priv->regs + reg); \ } \ -- cgit v1.2.3 From 4cd53c0c8b01fc05c3ad5b2acdad02e37d3c2f55 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 14 Dec 2012 16:01:25 +0100 Subject: drm/i915: paper over missed irq issues with force wake voodoo Two things seem to do the trick on my ivb machine here: - prevent the gt from powering down while waiting for seqno notification interrupts by grabbing the force_wake in get_irq (and dropping it in put_irq again). - ordering writes from the ring's CS by reading a CS register, ACTHD seems to work. Only the blt&bsd ring on ivb seem to be massively affected by this, but for paranoia do this dance also on the render ring and on snb (i.e. all gpus with forcewake). Tested with Eric's glCopyPixels loop which without this patch scores a missed irq every few seconds. This patch needs my forcewake rework to use a spinlock instead of dev->struct_mutex. After crawling through docs a lot I've found the following nugget: Internal doc "SNB GT PM Programming Guide", Section 4.3.1: "GT does not generate interrupts while in RC6 (by design)" So it looks like rc6 and irq generation are indeed related. v2: Improve the comment per Eugeni Dodonov's suggestion. v3: Add the documentation snipped. Also restrict the w/a to ivb only for -fixes, as suggested by Keith Packard. Cc: stable@kernel.org Cc: Eric Anholt Cc: Kenneth Graunke Cc: Eugeni Dodonov Tested-by: Eugeni Dodonov Reviewed-by: Eugeni Dodonov Signed-Off-by: Daniel Vetter Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_ringbuffer.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 77e729d4e4f0..fa5702c5da42 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -635,6 +635,19 @@ render_ring_add_request(struct intel_ring_buffer *ring, return 0; } +static u32 +gen6_ring_get_seqno(struct intel_ring_buffer *ring) +{ + struct drm_device *dev = ring->dev; + + /* Workaround to force correct ordering between irq and seqno writes on + * ivb (and maybe also on snb) by reading from a CS register (like + * ACTHD) before reading the status page. */ + if (IS_GEN7(dev)) + intel_ring_get_active_head(ring); + return intel_read_status_page(ring, I915_GEM_HWS_INDEX); +} + static u32 ring_get_seqno(struct intel_ring_buffer *ring) { @@ -811,6 +824,12 @@ gen6_ring_get_irq(struct intel_ring_buffer *ring, u32 gflag, u32 rflag) if (!dev->irq_enabled) return false; + /* It looks like we need to prevent the gt from suspending while waiting + * for an notifiy irq, otherwise irqs seem to get lost on at least the + * blt/bsd rings on ivb. */ + if (IS_GEN7(dev)) + gen6_gt_force_wake_get(dev_priv); + spin_lock(&ring->irq_lock); if (ring->irq_refcount++ == 0) { ring->irq_mask &= ~rflag; @@ -835,6 +854,9 @@ gen6_ring_put_irq(struct intel_ring_buffer *ring, u32 gflag, u32 rflag) ironlake_disable_irq(dev_priv, gflag); } spin_unlock(&ring->irq_lock); + + if (IS_GEN7(dev)) + gen6_gt_force_wake_put(dev_priv); } static bool @@ -1341,7 +1363,7 @@ static const struct intel_ring_buffer gen6_bsd_ring = { .write_tail = gen6_bsd_ring_write_tail, .flush = gen6_ring_flush, .add_request = gen6_add_request, - .get_seqno = ring_get_seqno, + .get_seqno = gen6_ring_get_seqno, .irq_get = gen6_bsd_ring_get_irq, .irq_put = gen6_bsd_ring_put_irq, .dispatch_execbuffer = gen6_ring_dispatch_execbuffer, @@ -1476,7 +1498,7 @@ static const struct intel_ring_buffer gen6_blt_ring = { .write_tail = ring_write_tail, .flush = blt_ring_flush, .add_request = gen6_add_request, - .get_seqno = ring_get_seqno, + .get_seqno = gen6_ring_get_seqno, .irq_get = blt_ring_get_irq, .irq_put = blt_ring_put_irq, .dispatch_execbuffer = gen6_ring_dispatch_execbuffer, @@ -1499,6 +1521,7 @@ int intel_init_render_ring_buffer(struct drm_device *dev) ring->flush = gen6_render_ring_flush; ring->irq_get = gen6_render_ring_get_irq; ring->irq_put = gen6_render_ring_put_irq; + ring->get_seqno = gen6_ring_get_seqno; } else if (IS_GEN5(dev)) { ring->add_request = pc_render_add_request; ring->get_seqno = pc_render_get_seqno; -- cgit v1.2.3 From bdfcdb63795b058bba9e78d32102b39014f649fe Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 5 Jan 2012 01:05:26 +0100 Subject: drm/i915: rip out the HWSTAM missed irq workaround With the new ducttape of much finer quality, this seems to be no longer necessary. Tested on my ivb and snb machine with the usual suspects of testcases. (v2 by keithp -- limited change to IVB only for now) Signed-Off-by: Daniel Vetter Acked-by: Ben Widawsky Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_irq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 5d433fc11ace..5bd4361ea84d 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1751,7 +1751,8 @@ static void ironlake_irq_preinstall(struct drm_device *dev) INIT_WORK(&dev_priv->rps_work, gen6_pm_rps_work); I915_WRITE(HWSTAM, 0xeffe); - if (IS_GEN6(dev) || IS_GEN7(dev)) { + + if (IS_GEN6(dev)) { /* Workaround stalls observed on Sandy Bridge GPUs by * making the blitter command streamer generate a * write to the Hardware Status Page for -- cgit v1.2.3 From 8f0fc977f58c36e75e205486c1aebb9b8e4263e1 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 19 Jan 2012 21:13:47 -0800 Subject: Revert "drm/i915: Work around gen7 BLT ring synchronization issues." This reverts commit 42ff6572e5a4a7414330a4ca91f0335da67deca9. New forcewake voodoo makes this no longer necessary. Acked-by: Daniel Vetter Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_ringbuffer.c | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index fa5702c5da42..1ab842c6032e 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -804,17 +804,6 @@ ring_add_request(struct intel_ring_buffer *ring, return 0; } -static bool -gen7_blt_ring_get_irq(struct intel_ring_buffer *ring) -{ - /* The BLT ring on IVB appears to have broken synchronization - * between the seqno write and the interrupt, so that the - * interrupt appears first. Returning false here makes - * i915_wait_request() do a polling loop, instead. - */ - return false; -} - static bool gen6_ring_get_irq(struct intel_ring_buffer *ring, u32 gflag, u32 rflag) { @@ -1600,8 +1589,5 @@ int intel_init_blt_ring_buffer(struct drm_device *dev) *ring = gen6_blt_ring; - if (IS_GEN7(dev)) - ring->irq_get = gen7_blt_ring_get_irq; - return intel_init_ring_buffer(dev, ring); } -- cgit v1.2.3 From fff24e21e17e438bf24791ed9cea7bbc02ad2dbb Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 23 Jan 2012 16:14:05 -0800 Subject: drm/i915: Correct debugfs printout for RC1e. We had two things in a row claiming to be RC6. Signed-off-by: Eric Anholt Reviewed-by: Keith Packard Reviewed-by: Ben Widawsky Reviewed-by: Eugeni Dodonov Reviewed-by: Kenneth Graunke Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index a017b989b1ab..60dcee3eda44 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1106,7 +1106,7 @@ static int gen6_drpc_info(struct seq_file *m) seq_printf(m, "SW control enabled: %s\n", yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) == GEN6_RP_MEDIA_SW_MODE)); - seq_printf(m, "RC6 Enabled: %s\n", + seq_printf(m, "RC1e Enabled: %s\n", yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE)); seq_printf(m, "RC6 Enabled: %s\n", yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE)); -- cgit v1.2.3 From 04115a9dee110b52a8eaa556c574022fa3bf4704 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 23 Jan 2012 16:14:06 -0800 Subject: drm/i915: Re-enable gen7 RC6 and GPU turbo after resume. Signed-off-by: Eric Anholt Cc: stable@vger.kernel.org Reviewed-by: Keith Packard Reviewed-by: Eugeni Dodonov Reviewed-by: Kenneth Graunke Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_suspend.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 30d924f447c0..2b5eb229ff2c 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -827,7 +827,7 @@ int i915_save_state(struct drm_device *dev) if (IS_IRONLAKE_M(dev)) ironlake_disable_drps(dev); - if (IS_GEN6(dev)) + if (INTEL_INFO(dev)->gen >= 6) gen6_disable_rps(dev); /* Cache mode state */ @@ -886,7 +886,7 @@ int i915_restore_state(struct drm_device *dev) intel_init_emon(dev); } - if (IS_GEN6(dev)) { + if (INTEL_INFO(dev)->gen >= 6) { gen6_enable_rps(dev_priv); gen6_update_ring_freq(dev_priv); } -- cgit v1.2.3 From 075edca43b819c33bd755eaf7a3bd0e1b3279f70 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 24 Jan 2012 09:44:28 +0100 Subject: drm/i915: allow userspace forcewake references also on gen7 We need this to correctly access registers in the gt power well from userspace. Signed-Off-by: Daniel Vetter Reviewed-by: Eugeni Dodonov Reviewed-by: Keith Packard Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 60dcee3eda44..6b7204638603 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1669,7 +1669,7 @@ static int i915_forcewake_open(struct inode *inode, struct file *file) struct drm_i915_private *dev_priv = dev->dev_private; int ret; - if (!IS_GEN6(dev)) + if (INTEL_INFO(dev)->gen < 6) return 0; ret = mutex_lock_interruptible(&dev->struct_mutex); @@ -1686,7 +1686,7 @@ int i915_forcewake_release(struct inode *inode, struct file *file) struct drm_device *dev = inode->i_private; struct drm_i915_private *dev_priv = dev->dev_private; - if (!IS_GEN6(dev)) + if (INTEL_INFO(dev)->gen < 6) return 0; /* -- cgit v1.2.3 From 48467a92215ced69a65c89c1b064dd84728a5ed0 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 24 Jan 2012 09:44:29 +0100 Subject: drm/i915: debugfs: show semaphore registers also on gen7 Corresponding changes to improve our error_state are pending some other patches to clean up things first. Signed-Off-by: Daniel Vetter Reviewed-by: Eugeni Dodonov Reviewed-by: Keith Packard Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 6b7204638603..99f140798808 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -653,7 +653,7 @@ static int i915_ringbuffer_info(struct seq_file *m, void *data) seq_printf(m, " Size : %08x\n", ring->size); seq_printf(m, " Active : %08x\n", intel_ring_get_active_head(ring)); seq_printf(m, " NOPID : %08x\n", I915_READ_NOPID(ring)); - if (IS_GEN6(dev)) { + if (IS_GEN6(dev) || IS_GEN7(dev)) { seq_printf(m, " Sync 0 : %08x\n", I915_READ_SYNC_0(ring)); seq_printf(m, " Sync 1 : %08x\n", I915_READ_SYNC_1(ring)); } -- cgit v1.2.3 From 93b525dccf212e50a895792d79d64bdb53312f5c Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 25 Jan 2012 13:52:43 +0100 Subject: drm/i915: fixup forcewake spinlock fallout in drpc debugfs function My forcewake spinlock patches have a functional conflict with Ben Widawsky's gen6 drpc support for debugfs. Result was a benign warning about trying to read an non-atomic variabla with atomic_read. Note that the entire check is racy anyway and purely informational. Also update it to reflect the forcewake voodoo changes, the kernel can now also hold onto a forcewake reference for longer times. Signed-Off-by: Daniel Vetter Reviewed-by: Ben Widawsky Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_debugfs.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 99f140798808..deaa657292b4 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1075,6 +1075,7 @@ static int gen6_drpc_info(struct seq_file *m) struct drm_device *dev = node->minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 rpmodectl1, gt_core_status, rcctl1; + unsigned forcewake_count; int count=0, ret; @@ -1082,9 +1083,13 @@ static int gen6_drpc_info(struct seq_file *m) if (ret) return ret; - if (atomic_read(&dev_priv->forcewake_count)) { - seq_printf(m, "RC information inaccurate because userspace " - "holds a reference \n"); + spin_lock_irq(&dev_priv->gt_lock); + forcewake_count = dev_priv->forcewake_count; + spin_unlock_irq(&dev_priv->gt_lock); + + if (forcewake_count) { + seq_printf(m, "RC information inaccurate because somebody " + "holds a forcewake reference \n"); } else { /* NB: we cannot use forcewake, else we read the wrong values */ while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1)) -- cgit v1.2.3 From 590dfe2f3bbbbeee806ee91bef68ba2a6afc16d2 Mon Sep 17 00:00:00 2001 From: Michal Kubecek Date: Wed, 25 Jan 2012 16:51:05 +0100 Subject: agp: fix scratch page cleanup In error cleanup of agp_backend_initialize() and in agp_backend_cleanup(), agp_destroy_page() is passed virtual address of the scratch page. This leads to a kernel warning if the initialization fails (or upon regular cleanup) as pointer to struct page should be passed instead. Signed-off-by: Michal Kubecek Signed-off-by: Dave Airlie --- drivers/char/agp/backend.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c index 4b71647782d0..317c28ce8328 100644 --- a/drivers/char/agp/backend.c +++ b/drivers/char/agp/backend.c @@ -194,10 +194,10 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge) err_out: if (bridge->driver->needs_scratch_page) { - void *va = page_address(bridge->scratch_page_page); + struct page *page = bridge->scratch_page_page; - bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_UNMAP); - bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_FREE); + bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_UNMAP); + bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_FREE); } if (got_gatt) bridge->driver->free_gatt_table(bridge); @@ -221,10 +221,10 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge) if (bridge->driver->agp_destroy_page && bridge->driver->needs_scratch_page) { - void *va = page_address(bridge->scratch_page_page); + struct page *page = bridge->scratch_page_page; - bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_UNMAP); - bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_FREE); + bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_UNMAP); + bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_FREE); } } -- cgit v1.2.3 From 485bc54c3360e9c1d595c48c9c82dbd3a51e133e Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Thu, 22 Dec 2011 11:30:09 +0900 Subject: drm/exynos: use release_mem_region instead of release_resource To make a api pair of request_mem_region and release_mem_region, release_mem_region is used instead of release_resource. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_hdmi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index f48f7ce92f5f..3429d3fd93f3 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1116,8 +1116,8 @@ err_ddc: err_iomap: iounmap(hdata->regs); err_req_region: - release_resource(hdata->regs_res); - kfree(hdata->regs_res); + release_mem_region(hdata->regs_res->start, + resource_size(hdata->regs_res)); err_resource: hdmi_resources_cleanup(hdata); err_data: @@ -1145,8 +1145,8 @@ static int __devexit hdmi_remove(struct platform_device *pdev) iounmap(hdata->regs); - release_resource(hdata->regs_res); - kfree(hdata->regs_res); + release_mem_region(hdata->regs_res->start, + resource_size(hdata->regs_res)); /* hdmiphy i2c driver */ i2c_del_driver(&hdmiphy_driver); -- cgit v1.2.3 From 2363dc636df34abb795c31668eeadc659e815fbd Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Wed, 4 Jan 2012 15:34:32 +0900 Subject: drm/exynos: fix build dependency for DRM_EXYNOS_HDMI DRM_EXYNOS_HDMI driver and VIDEO_SAMSUNG_S5P_TV driver should be not enabled at once because they use same HW blocks. So dependency for DRM_EXYNOS_HDMI is fixed to check VIDEO_SAMSUNG_S5P_TV=n. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index f9aaa56eae07..4ab915e88936 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -21,7 +21,7 @@ config DRM_EXYNOS_FIMD config DRM_EXYNOS_HDMI tristate "Exynos DRM HDMI" - depends on DRM_EXYNOS + depends on DRM_EXYNOS && !VIDEO_SAMSUNG_S5P_TV help Choose this option if you want to use Exynos HDMI for DRM. If M is selected, the module will be called exynos_drm_hdmi -- cgit v1.2.3 From a4b42dab293afdabc3e4ae57cbc743ad05af0e4b Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Mon, 16 Jan 2012 18:55:02 +0900 Subject: drm/exynos: fixed build dependency for DRM_EXYNOS_FIMD FB based FIMD and DRM based FIMD drivers use same hardware so with this patch, only one of them would be selected. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 4ab915e88936..b9e5266c341b 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -13,7 +13,7 @@ config DRM_EXYNOS config DRM_EXYNOS_FIMD tristate "Exynos DRM FIMD" - depends on DRM_EXYNOS + depends on DRM_EXYNOS && !FB_S3C default n help Choose this option if you want to use Exynos FIMD for DRM. -- cgit v1.2.3 From 373af0c0c539b109ea978e96f217df0fc20aa261 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 27 Jan 2012 11:54:58 +0900 Subject: drm/exynos: fixed pm feature for fimd module. this patch separates fimd specific power on/off function from pm function and the pm interfaces will call that function for power on or off. and also removes unnecessary codes of resume function. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 109 +++++++++++++++++-------------- 1 file changed, 59 insertions(+), 50 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index ca83139cd309..b6a737d196ae 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -158,7 +158,8 @@ static void fimd_dpms(struct device *subdrv_dev, int mode) case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: case DRM_MODE_DPMS_OFF: - pm_runtime_put_sync(subdrv_dev); + if (!ctx->suspended) + pm_runtime_put_sync(subdrv_dev); break; default: DRM_DEBUG_KMS("unspecified mode %d\n", mode); @@ -734,6 +735,46 @@ static void fimd_clear_win(struct fimd_context *ctx, int win) writel(val, ctx->regs + SHADOWCON); } +static int fimd_power_on(struct fimd_context *ctx, bool enable) +{ + struct exynos_drm_subdrv *subdrv = &ctx->subdrv; + struct device *dev = subdrv->manager.dev; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (enable != false && enable != true) + return -EINVAL; + + if (enable) { + int ret; + + ret = clk_enable(ctx->bus_clk); + if (ret < 0) + return ret; + + ret = clk_enable(ctx->lcd_clk); + if (ret < 0) { + clk_disable(ctx->bus_clk); + return ret; + } + + ctx->suspended = false; + + /* if vblank was enabled status, enable it again. */ + if (test_and_clear_bit(0, &ctx->irq_flags)) + fimd_enable_vblank(dev); + + fimd_apply(dev); + } else { + clk_disable(ctx->lcd_clk); + clk_disable(ctx->bus_clk); + + ctx->suspended = true; + } + + return 0; +} + static int __devinit fimd_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -911,39 +952,30 @@ out: #ifdef CONFIG_PM_SLEEP static int fimd_suspend(struct device *dev) { - int ret; + struct fimd_context *ctx = get_fimd_context(dev); if (pm_runtime_suspended(dev)) return 0; - ret = pm_runtime_suspend(dev); - if (ret < 0) - return ret; - - return 0; + /* + * do not use pm_runtime_suspend(). if pm_runtime_suspend() is + * called here, an error would be returned by that interface + * because the usage_count of pm runtime is more than 1. + */ + return fimd_power_on(ctx, false); } static int fimd_resume(struct device *dev) { - int ret; - - ret = pm_runtime_resume(dev); - if (ret < 0) { - DRM_ERROR("failed to resume runtime pm.\n"); - return ret; - } - - pm_runtime_disable(dev); - - ret = pm_runtime_set_active(dev); - if (ret < 0) { - DRM_ERROR("failed to active runtime pm.\n"); - pm_runtime_enable(dev); - pm_runtime_suspend(dev); - return ret; - } + struct fimd_context *ctx = get_fimd_context(dev); - pm_runtime_enable(dev); + /* + * if entered to sleep when lcd panel was on, the usage_count + * of pm runtime would still be 1 so in this case, fimd driver + * should be on directly not drawing on pm runtime interface. + */ + if (!pm_runtime_suspended(dev)) + return fimd_power_on(ctx, true); return 0; } @@ -956,39 +988,16 @@ static int fimd_runtime_suspend(struct device *dev) DRM_DEBUG_KMS("%s\n", __FILE__); - clk_disable(ctx->lcd_clk); - clk_disable(ctx->bus_clk); - - ctx->suspended = true; - return 0; + return fimd_power_on(ctx, false); } static int fimd_runtime_resume(struct device *dev) { struct fimd_context *ctx = get_fimd_context(dev); - int ret; DRM_DEBUG_KMS("%s\n", __FILE__); - ret = clk_enable(ctx->bus_clk); - if (ret < 0) - return ret; - - ret = clk_enable(ctx->lcd_clk); - if (ret < 0) { - clk_disable(ctx->bus_clk); - return ret; - } - - ctx->suspended = false; - - /* if vblank was enabled status, enable it again. */ - if (test_and_clear_bit(0, &ctx->irq_flags)) - fimd_enable_vblank(dev); - - fimd_apply(dev); - - return 0; + return fimd_power_on(ctx, true); } #endif -- cgit v1.2.3 From 2d8357e66df9f7593cbe23b224b4ed06aff90e73 Mon Sep 17 00:00:00 2001 From: Ryan Mallon Date: Fri, 27 Jan 2012 17:28:24 +1100 Subject: gma500: Fix suspend/resume functions Both the suspend and resume functions incorrectly set psbfb = to_psb_fb(NULL) outside of the loop over all of the framebuffers. Fix this by moving the assignment of psbfb inside the loop and removing the initialisation of fb. Signed-off-by: Ryan Mallon Acked-by: Alan Cox Signed-off-by: Dave Airlie --- drivers/gpu/drm/gma500/framebuffer.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index 791c0ef1a65b..830dfdd6bf15 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -113,12 +113,12 @@ static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info) void psbfb_suspend(struct drm_device *dev) { - struct drm_framebuffer *fb = 0; - struct psb_framebuffer *psbfb = to_psb_fb(fb); + struct drm_framebuffer *fb; console_lock(); mutex_lock(&dev->mode_config.mutex); list_for_each_entry(fb, &dev->mode_config.fb_list, head) { + struct psb_framebuffer *psbfb = to_psb_fb(fb); struct fb_info *info = psbfb->fbdev; fb_set_suspend(info, 1); drm_fb_helper_blank(FB_BLANK_POWERDOWN, info); @@ -129,12 +129,12 @@ void psbfb_suspend(struct drm_device *dev) void psbfb_resume(struct drm_device *dev) { - struct drm_framebuffer *fb = 0; - struct psb_framebuffer *psbfb = to_psb_fb(fb); + struct drm_framebuffer *fb; console_lock(); mutex_lock(&dev->mode_config.mutex); list_for_each_entry(fb, &dev->mode_config.fb_list, head) { + struct psb_framebuffer *psbfb = to_psb_fb(fb); struct fb_info *info = psbfb->fbdev; fb_set_suspend(info, 0); drm_fb_helper_blank(FB_BLANK_UNBLANK, info); -- cgit v1.2.3