From ba1b9f8c4658663dd66e992bef31f6f8747b6c8c Mon Sep 17 00:00:00 2001 From: james qian wang (Arm Technology China) Date: Thu, 25 Apr 2019 07:12:09 +0100 Subject: drm/komeda: Constify the usage of komeda_component/pipeline/dev_funcs Depends on: - https://patchwork.freedesktop.org/series/58976/ - https://patchwork.freedesktop.org/series/59855/ Reported-by: Emil Velikov Signed-off-by: James Qian Wang (Arm Technology China) Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/display/komeda/d71/d71_component.c | 8 ++++---- drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c | 4 ++-- drivers/gpu/drm/arm/display/komeda/komeda_crtc.c | 2 +- drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 2 +- drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 6 +++--- drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c | 4 ++-- drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h | 10 +++++----- 7 files changed, 18 insertions(+), 18 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c index 031e5f305a3c..6bab816ed8e7 100644 --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c @@ -245,7 +245,7 @@ static void d71_layer_dump(struct komeda_component *c, struct seq_file *sf) seq_printf(sf, "%sAD_V_CROP:\t\t0x%X\n", prefix, v[2]); } -static struct komeda_component_funcs d71_layer_funcs = { +static const struct komeda_component_funcs d71_layer_funcs = { .update = d71_layer_update, .disable = d71_layer_disable, .dump_register = d71_layer_dump, @@ -391,7 +391,7 @@ static void d71_compiz_dump(struct komeda_component *c, struct seq_file *sf) seq_printf(sf, "CU_USER_HIGH:\t\t0x%X\n", v[1]); } -static struct komeda_component_funcs d71_compiz_funcs = { +static const struct komeda_component_funcs d71_compiz_funcs = { .update = d71_compiz_update, .disable = d71_component_disable, .dump_register = d71_compiz_dump, @@ -467,7 +467,7 @@ static void d71_improc_dump(struct komeda_component *c, struct seq_file *sf) seq_printf(sf, "IPS_RGB_YUV_COEFF%u:\t0x%X\n", i, v[i]); } -static struct komeda_component_funcs d71_improc_funcs = { +static const struct komeda_component_funcs d71_improc_funcs = { .update = d71_improc_update, .disable = d71_component_disable, .dump_register = d71_improc_dump, @@ -580,7 +580,7 @@ static void d71_timing_ctrlr_dump(struct komeda_component *c, seq_printf(sf, "BS_USER:\t\t0x%X\n", v[4]); } -static struct komeda_component_funcs d71_timing_ctrlr_funcs = { +static const struct komeda_component_funcs d71_timing_ctrlr_funcs = { .update = d71_timing_ctrlr_update, .disable = d71_timing_ctrlr_disable, .dump_register = d71_timing_ctrlr_dump, diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c index 34506ef7ad40..3a7248d42376 100644 --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c @@ -502,7 +502,7 @@ static void d71_init_fmt_tbl(struct komeda_dev *mdev) table->n_formats = ARRAY_SIZE(d71_format_caps_table); } -static struct komeda_dev_funcs d71_chip_funcs = { +static const struct komeda_dev_funcs d71_chip_funcs = { .init_format_table = d71_init_fmt_tbl, .enum_resources = d71_enum_resources, .cleanup = d71_cleanup, @@ -514,7 +514,7 @@ static struct komeda_dev_funcs d71_chip_funcs = { .flush = d71_flush, }; -struct komeda_dev_funcs * +const struct komeda_dev_funcs * d71_identify(u32 __iomem *reg_base, struct komeda_chip_info *chip) { chip->arch_id = malidp_read32(reg_base, GLB_ARCH_ID); diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c index 62fad59f5a6a..284ce079d8c4 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c @@ -350,7 +350,7 @@ static bool komeda_crtc_mode_fixup(struct drm_crtc *crtc, return true; } -static struct drm_crtc_helper_funcs komeda_crtc_helper_funcs = { +static const struct drm_crtc_helper_funcs komeda_crtc_helper_funcs = { .atomic_check = komeda_crtc_atomic_check, .atomic_flush = komeda_crtc_atomic_flush, .atomic_enable = komeda_crtc_atomic_enable, diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c index ca3599e4a4d3..d7527e126658 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c @@ -269,7 +269,7 @@ err_cleanup: void komeda_dev_destroy(struct komeda_dev *mdev) { struct device *dev = mdev->dev; - struct komeda_dev_funcs *funcs = mdev->funcs; + const struct komeda_dev_funcs *funcs = mdev->funcs; int i; sysfs_remove_group(&dev->kobj, &komeda_sysfs_attr_group); diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h index 29e03c4e1ffc..994c6ea3039b 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h @@ -60,7 +60,7 @@ struct komeda_chip_info { struct komeda_product_data { u32 product_id; - struct komeda_dev_funcs *(*identify)(u32 __iomem *reg, + const struct komeda_dev_funcs *(*identify)(u32 __iomem *reg, struct komeda_chip_info *info); }; @@ -173,7 +173,7 @@ struct komeda_dev { struct komeda_pipeline *pipelines[KOMEDA_MAX_PIPELINES]; /** @funcs: chip funcs to access to HW */ - struct komeda_dev_funcs *funcs; + const struct komeda_dev_funcs *funcs; /** * @chip_data: * @@ -192,7 +192,7 @@ komeda_product_match(struct komeda_dev *mdev, u32 target) return MALIDP_CORE_ID_PRODUCT_ID(mdev->chip.core_id) == target; } -struct komeda_dev_funcs * +const struct komeda_dev_funcs * d71_identify(u32 __iomem *reg, struct komeda_chip_info *chip); struct komeda_dev *komeda_dev_create(struct device *dev); diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c index c379439c6194..a130b62fa6d1 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c @@ -12,7 +12,7 @@ /** komeda_pipeline_add - Add a pipeline to &komeda_dev */ struct komeda_pipeline * komeda_pipeline_add(struct komeda_dev *mdev, size_t size, - struct komeda_pipeline_funcs *funcs) + const struct komeda_pipeline_funcs *funcs) { struct komeda_pipeline *pipe; @@ -130,7 +130,7 @@ komeda_pipeline_get_component(struct komeda_pipeline *pipe, int id) struct komeda_component * komeda_component_add(struct komeda_pipeline *pipe, size_t comp_sz, u32 id, u32 hw_id, - struct komeda_component_funcs *funcs, + const struct komeda_component_funcs *funcs, u8 max_active_inputs, u32 supported_inputs, u8 max_active_outputs, u32 __iomem *reg, const char *name_fmt, ...) diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h index b1f813a349a4..bae8a32b81a6 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h @@ -124,7 +124,7 @@ struct komeda_component { /** * @funcs: chip functions to access HW */ - struct komeda_component_funcs *funcs; + const struct komeda_component_funcs *funcs; }; /** @@ -346,8 +346,8 @@ struct komeda_pipeline { struct komeda_improc *improc; /** @ctrlr: timing controller */ struct komeda_timing_ctrlr *ctrlr; - /** @funcs: chip pipeline functions */ - struct komeda_pipeline_funcs *funcs; /* private pipeline functions */ + /** @funcs: chip private pipeline functions */ + const struct komeda_pipeline_funcs *funcs; /** @of_node: pipeline dt node */ struct device_node *of_node; @@ -397,7 +397,7 @@ struct komeda_pipeline_state { /* pipeline APIs */ struct komeda_pipeline * komeda_pipeline_add(struct komeda_dev *mdev, size_t size, - struct komeda_pipeline_funcs *funcs); + const struct komeda_pipeline_funcs *funcs); void komeda_pipeline_destroy(struct komeda_dev *mdev, struct komeda_pipeline *pipe); int komeda_assemble_pipelines(struct komeda_dev *mdev); @@ -411,7 +411,7 @@ void komeda_pipeline_dump_register(struct komeda_pipeline *pipe, struct komeda_component * komeda_component_add(struct komeda_pipeline *pipe, size_t comp_sz, u32 id, u32 hw_id, - struct komeda_component_funcs *funcs, + const struct komeda_component_funcs *funcs, u8 max_active_inputs, u32 supported_inputs, u8 max_active_outputs, u32 __iomem *reg, const char *name_fmt, ...); -- cgit v1.2.3-55-g7522 From a260e0b847f079b7eda85a76fc066a6537f34951 Mon Sep 17 00:00:00 2001 From: Lowry Li (Arm Technology China) Date: Thu, 11 Apr 2019 09:37:13 +0100 Subject: drm/komeda: fixing of DMA mapping sg segment warning Fixing the DMA mapping sg segment warning, which shows "DMA-API: mapping sg segment longer than device claims to support [len=921600] [max=65536]". Fixed by setting the max segment size at Komeda driver. This patch depends on: - https://patchwork.freedesktop.org/series/54448/ - https://patchwork.freedesktop.org/series/54449/ - https://patchwork.freedesktop.org/series/54450/ - https://patchwork.freedesktop.org/series/58976/ Changes since v1: - Adds member description - Adds patch denpendency in the comment Signed-off-by: Lowry Li (Arm Technology China) Reviewed-by: James Qian Wang (Arm Technology China) Reviewed-by: Ayan Kumar Halder Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 4 ++++ drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 2 ++ 2 files changed, 6 insertions(+) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c index d7527e126658..b67030a9f056 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c @@ -8,6 +8,7 @@ #include #include #include +#include #ifdef CONFIG_DEBUG_FS #include #include @@ -249,6 +250,9 @@ struct komeda_dev *komeda_dev_create(struct device *dev) goto err_cleanup; } + dev->dma_parms = &mdev->dma_parms; + dma_set_max_seg_size(dev, DMA_BIT_MASK(32)); + err = sysfs_create_group(&dev->kobj, &komeda_sysfs_attr_group); if (err) { DRM_ERROR("create sysfs group failed.\n"); diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h index 994c6ea3039b..973fd5e0eb98 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h @@ -149,6 +149,8 @@ struct komeda_dev { struct device *dev; /** @reg_base: the base address of komeda io space */ u32 __iomem *reg_base; + /** @dma_parms: the dma parameters of komeda */ + struct device_dma_parameters dma_parms; /** @chip: the basic chip information */ struct komeda_chip_info chip; -- cgit v1.2.3-55-g7522 From 6a88e0c14813d00f8520d0e16cd4136c6cf8b4d4 Mon Sep 17 00:00:00 2001 From: Wen He Date: Wed, 8 May 2019 10:58:18 +0000 Subject: drm/arm/mali-dp: Add a loop around the second set CVAL and try 5 times This patch trying to fix monitor freeze issue caused by drm error 'flip_done timed out' on LS1028A platform. this set try is make a loop around the second setting CVAL and try like 5 times before giveing up. Signed-off-by: Wen He Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/malidp_drv.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 21725c9b9f5e..18cb7f134f4e 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -192,6 +192,7 @@ static void malidp_atomic_commit_hw_done(struct drm_atomic_state *state) { struct drm_device *drm = state->dev; struct malidp_drm *malidp = drm->dev_private; + int loop = 5; malidp->event = malidp->crtc.state->event; malidp->crtc.state->event = NULL; @@ -206,8 +207,18 @@ static void malidp_atomic_commit_hw_done(struct drm_atomic_state *state) drm_crtc_vblank_get(&malidp->crtc); /* only set config_valid if the CRTC is enabled */ - if (malidp_set_and_wait_config_valid(drm) < 0) + if (malidp_set_and_wait_config_valid(drm) < 0) { + /* + * make a loop around the second CVAL setting and + * try 5 times before giving up. + */ + while (loop--) { + if (!malidp_set_and_wait_config_valid(drm)) + break; + } DRM_DEBUG_DRIVER("timed out waiting for updated configuration\n"); + } + } else if (malidp->event) { /* CRTC inactive means vblank IRQ is disabled, send event directly */ spin_lock_irq(&drm->event_lock); -- cgit v1.2.3-55-g7522 From b96151edced4edb6a18aa89a5fa02c7066efff45 Mon Sep 17 00:00:00 2001 From: Robin Murphy Date: Fri, 17 May 2019 17:37:21 +0100 Subject: drm/arm/hdlcd: Actually validate CRTC modes Rather than allowing any old mode through, then subsequently refusing unmatchable clock rates in atomic_check when it's too late to back out and pick a different mode, let's do that validation up-front where it will cause unsupported modes to be correctly pruned in the first place. This also eliminates an issue whereby a perceived clock rate of 0 would cause atomic disable to fail and prevent the module from being unloaded. Signed-off-by: Robin Murphy Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/hdlcd_crtc.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c index 0b2b62f8fa3c..ecac6fe0b213 100644 --- a/drivers/gpu/drm/arm/hdlcd_crtc.c +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c @@ -186,20 +186,19 @@ static void hdlcd_crtc_atomic_disable(struct drm_crtc *crtc, clk_disable_unprepare(hdlcd->clk); } -static int hdlcd_crtc_atomic_check(struct drm_crtc *crtc, - struct drm_crtc_state *state) +static enum drm_mode_status hdlcd_crtc_mode_valid(struct drm_crtc *crtc, + const struct drm_display_mode *mode) { struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc); - struct drm_display_mode *mode = &state->adjusted_mode; long rate, clk_rate = mode->clock * 1000; rate = clk_round_rate(hdlcd->clk, clk_rate); if (rate != clk_rate) { /* clock required by mode not supported by hardware */ - return -EINVAL; + return MODE_NOCLOCK; } - return 0; + return MODE_OK; } static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc, @@ -220,7 +219,7 @@ static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc, } static const struct drm_crtc_helper_funcs hdlcd_crtc_helper_funcs = { - .atomic_check = hdlcd_crtc_atomic_check, + .mode_valid = hdlcd_crtc_mode_valid, .atomic_begin = hdlcd_crtc_atomic_begin, .atomic_enable = hdlcd_crtc_atomic_enable, .atomic_disable = hdlcd_crtc_atomic_disable, -- cgit v1.2.3-55-g7522 From 1c810739097fdeb31b393b67a0a1e3d7ffdd9f63 Mon Sep 17 00:00:00 2001 From: Robin Murphy Date: Fri, 17 May 2019 17:37:22 +0100 Subject: drm/arm/hdlcd: Allow a bit of clock tolerance On the Arm Juno platform, the HDLCD pixel clock is constrained to 250KHz resolution in order to avoid the tiny System Control Processor spending aeons trying to calculate exact PLL coefficients. This means that modes like my oddball 1600x1200 with 130.89MHz clock get rejected since the rate cannot be matched exactly. In practice, though, this mode works quite happily with the clock at 131MHz, so let's relax the check to allow a little bit of slop. Signed-off-by: Robin Murphy Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/hdlcd_crtc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c index ecac6fe0b213..a3efa28436ea 100644 --- a/drivers/gpu/drm/arm/hdlcd_crtc.c +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c @@ -193,7 +193,8 @@ static enum drm_mode_status hdlcd_crtc_mode_valid(struct drm_crtc *crtc, long rate, clk_rate = mode->clock * 1000; rate = clk_round_rate(hdlcd->clk, clk_rate); - if (rate != clk_rate) { + /* 0.1% seems a close enough tolerance for the TDA19988 on Juno */ + if (abs(rate - clk_rate) * 1000 > clk_rate) { /* clock required by mode not supported by hardware */ return MODE_NOCLOCK; } -- cgit v1.2.3-55-g7522 From 7cb8bec205258601af2810f4f1998a207340e73c Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Sat, 27 Apr 2019 00:42:02 +0800 Subject: drm/komeda: remove set but not used variable 'kcrtc' Fixes gcc '-Wunused-but-set-variable' warning: drivers/gpu/drm/arm/display/komeda/komeda_plane.c: In function komeda_plane_atomic_check: drivers/gpu/drm/arm/display/komeda/komeda_plane.c:49:22: warning: variable kcrtc set but not used [-Wunused-but-set-variable] It is never used since introduction in commit 9e5603094176 ("drm/komeda: Add komeda_plane/plane_helper_funcs") Signed-off-by: YueHaibing Reviewed-by: James Qian Wang (Arm Technology China) Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/display/komeda/komeda_plane.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c index 07ed0cc1bc44..0753892b98d2 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c @@ -55,7 +55,6 @@ komeda_plane_atomic_check(struct drm_plane *plane, struct komeda_plane_state *kplane_st = to_kplane_st(state); struct komeda_layer *layer = kplane->layer; struct drm_crtc_state *crtc_st; - struct komeda_crtc *kcrtc; struct komeda_crtc_state *kcrtc_st; struct komeda_data_flow_cfg dflow; int err; @@ -73,7 +72,6 @@ komeda_plane_atomic_check(struct drm_plane *plane, if (!crtc_st->active) return 0; - kcrtc = to_kcrtc(state->crtc); kcrtc_st = to_kcrtc_st(crtc_st); err = komeda_plane_init_data_flow(state, &dflow); -- cgit v1.2.3-55-g7522 From 6d10dc617b4128c06fc2a88b47fda0a183ffe36c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 3 May 2019 15:25:25 +0300 Subject: drm/komeda: Potential error pointer dereference We need to check whether drm_atomic_get_crtc_state() returns an error pointer before dereferencing "crtc_st". Fixes: 9e5603094176 ("drm/komeda: Add komeda_plane/plane_helper_funcs") Signed-off-by: Dan Carpenter Reviewed-by: "james qian wang (Arm Technology China)" Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/display/komeda/komeda_plane.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c index 0753892b98d2..c97062bdd69b 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c @@ -63,7 +63,7 @@ komeda_plane_atomic_check(struct drm_plane *plane, return 0; crtc_st = drm_atomic_get_crtc_state(state->state, state->crtc); - if (!crtc_st->enable) { + if (IS_ERR(crtc_st) || !crtc_st->enable) { DRM_DEBUG_ATOMIC("Cannot update plane on a disabled CRTC.\n"); return -EINVAL; } -- cgit v1.2.3-55-g7522