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Mon, 3 Dec 2018 11:31:58 +0000 Received: from AM0PR08MB3891.eurprd08.prod.outlook.com ([fe80::896a:710:2a8c:e2fa]) by AM0PR08MB3891.eurprd08.prod.outlook.com ([fe80::896a:710:2a8c:e2fa%6]) with mapi id 15.20.1382.020; Mon, 3 Dec 2018 11:31:58 +0000 From: Ayan Halder To: Ayan Halder , Liviu Dudau , Brian Starkey , "malidp@foss.arm.com" , "airlied@linux.ie" , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "maxime.ripard@bootlin.com" , "sean@poorly.run" , "maarten.lankhorst@linux.intel.com" , "corbet@lwn.net" , "mchehab+samsung@kernel.org" , "gregkh@linuxfoundation.org" , "davem@davemloft.net" , "akpm@linux-foundation.org" , "nicolas.ferre@microchip.com" , "arnd@arndb.de" , "linux-doc@vger.kernel.org" CC: nd Subject: [RFC v3 AFBC 04/12] drm/arm/malidp: Set the AFBC register bits if the framebuffer has AFBC modifier Thread-Topic: [RFC v3 AFBC 04/12] drm/arm/malidp: Set the AFBC register bits if the framebuffer has AFBC modifier Thread-Index: AQHUivvNe+KfFyADaUyOk+ZKPgY96g== Date: Mon, 3 Dec 2018 11:31:58 +0000 Message-ID: <1543836703-8491-5-git-send-email-ayan.halder@arm.com> References: <1543836703-8491-1-git-send-email-ayan.halder@arm.com> In-Reply-To: <1543836703-8491-1-git-send-email-ayan.halder@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: LO2P265CA0279.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:a1::27) To AM0PR08MB3891.eurprd08.prod.outlook.com (2603:10a6:208:109::19) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Ayan.Halder@arm.com; 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received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: 8uUoIMBsJEOLHbjF/QcCi7xdahh+Kb3wAeoNpKsbzK9bzDn7S3qBK0IN79DSSXDgKwVt4sFZNftXHyw3gY3cmrijfPf50sAoMTO+QucC+FsgLGXPg4HXISwwRIxeYquRg1JAM6nWepffLDvm6KqFhJWoUIZtX1306//nuYEWw9Kuwaey7yo5gyv5ZKleqAuPcgTp5g53DPTv/vwo4CZUmWqBpY9klAbcgrn2K8RlkcVsAe8PiHMkbaFwvCmGdglOfasNVHDzE7HxIJ53L/11oqiPcy+81C9dneqe2QIQcuo8Snnf6lUqRqljwyJhSrJDs6Pb0kOOiOvFSdN5whmjEWZOoSHIXAvhv9PfHnqebhY= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: 485703a2-e8d3-42bb-53e3-08d65912ef90 X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Dec 2018 11:31:58.4511 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR08MB3491 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Added the AFBC decoder registers for DP500 , DP550 and DP650. These registers control the processing of AFBC buffers. It controls various features like AFBC decoder enable, lossless transformation and block split as well as setting of the left, right, top and bottom cropping of AFBC buff= ers (in number of pixels). All the layers (except DE_SMART) support framebuffers with AFBC modifiers. One needs to set the pixel values of the top, left, bottom and right croppi= ng for the AFBC framebuffer. Cropping an AFBC framebuffer is controlled by the AFBC crop registers. In that case, the layer input size registers should be configured with framebuffer's dimensions and not with drm_plane_state source width/height values (which is used for non AFBC framebuffer to denote cropping). Changes from v1: - Removed the "if (fb->modifier)" check from malidp_de_plane_update() and added it in malidp_de_set_plane_afbc(). This will consolidate all the AFBC specific register configurations in a single function ie malidp_de_set_plane_afbc(). Changes from v2: - For AFBC framebuffer, layer input size register should be set to framebu= ffer's width and height Signed-off-by: Ayan Kumar Halder --- drivers/gpu/drm/arm/malidp_hw.c | 25 +++++---- drivers/gpu/drm/arm/malidp_hw.h | 2 + drivers/gpu/drm/arm/malidp_planes.c | 109 +++++++++++++++++++++++++++++++-= ---- drivers/gpu/drm/arm/malidp_regs.h | 20 +++++++ 4 files changed, 130 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_h= w.c index b9bed11..87b7b12 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -94,11 +94,12 @@ static const struct malidp_layer malidp500_layers[] =3D= { * yuv2rgb matrix offset, mmu control register offset, rotation_features */ { DE_VIDEO1, MALIDP500_DE_LV_BASE, MALIDP500_DE_LV_PTR_BASE, - MALIDP_DE_LV_STRIDE0, MALIDP500_LV_YUV2RGB, 0, ROTATE_ANY }, + MALIDP_DE_LV_STRIDE0, MALIDP500_LV_YUV2RGB, 0, ROTATE_ANY, + MALIDP500_DE_LV_AD_CTRL }, { DE_GRAPHICS1, MALIDP500_DE_LG1_BASE, MALIDP500_DE_LG1_PTR_BASE, - MALIDP_DE_LG_STRIDE, 0, 0, ROTATE_ANY }, + MALIDP_DE_LG_STRIDE, 0, 0, ROTATE_ANY, MALIDP500_DE_LG1_AD_CTRL }, { DE_GRAPHICS2, MALIDP500_DE_LG2_BASE, MALIDP500_DE_LG2_PTR_BASE, - MALIDP_DE_LG_STRIDE, 0, 0, ROTATE_ANY }, + MALIDP_DE_LG_STRIDE, 0, 0, ROTATE_ANY, MALIDP500_DE_LG2_AD_CTRL }, }; =20 static const struct malidp_layer malidp550_layers[] =3D { @@ -106,13 +107,15 @@ static const struct malidp_layer malidp550_layers[] = =3D { * yuv2rgb matrix offset, mmu control register offset, rotation_features */ { DE_VIDEO1, MALIDP550_DE_LV1_BASE, MALIDP550_DE_LV1_PTR_BASE, - MALIDP_DE_LV_STRIDE0, MALIDP550_LV_YUV2RGB, 0, ROTATE_ANY }, + MALIDP_DE_LV_STRIDE0, MALIDP550_LV_YUV2RGB, 0, ROTATE_ANY, + MALIDP550_DE_LV1_AD_CTRL }, { DE_GRAPHICS1, MALIDP550_DE_LG_BASE, MALIDP550_DE_LG_PTR_BASE, - MALIDP_DE_LG_STRIDE, 0, 0, ROTATE_ANY }, + MALIDP_DE_LG_STRIDE, 0, 0, ROTATE_ANY, MALIDP550_DE_LG_AD_CTRL }, { DE_VIDEO2, MALIDP550_DE_LV2_BASE, MALIDP550_DE_LV2_PTR_BASE, - MALIDP_DE_LV_STRIDE0, MALIDP550_LV_YUV2RGB, 0, ROTATE_ANY }, + MALIDP_DE_LV_STRIDE0, MALIDP550_LV_YUV2RGB, 0, ROTATE_ANY, + MALIDP550_DE_LV2_AD_CTRL }, { DE_SMART, MALIDP550_DE_LS_BASE, MALIDP550_DE_LS_PTR_BASE, - MALIDP550_DE_LS_R1_STRIDE, 0, 0, ROTATE_NONE }, + MALIDP550_DE_LS_R1_STRIDE, 0, 0, ROTATE_NONE, 0 }, }; =20 static const struct malidp_layer malidp650_layers[] =3D { @@ -122,16 +125,16 @@ static const struct malidp_layer malidp650_layers[] = =3D { */ { DE_VIDEO1, MALIDP550_DE_LV1_BASE, MALIDP550_DE_LV1_PTR_BASE, MALIDP_DE_LV_STRIDE0, MALIDP550_LV_YUV2RGB, - MALIDP650_DE_LV_MMU_CTRL, ROTATE_ANY }, + MALIDP650_DE_LV_MMU_CTRL, ROTATE_ANY, MALIDP550_DE_LV1_AD_CTRL }, { DE_GRAPHICS1, MALIDP550_DE_LG_BASE, MALIDP550_DE_LG_PTR_BASE, MALIDP_DE_LG_STRIDE, 0, MALIDP650_DE_LG_MMU_CTRL, - ROTATE_COMPRESSED }, + ROTATE_COMPRESSED, MALIDP550_DE_LG_AD_CTRL }, { DE_VIDEO2, MALIDP550_DE_LV2_BASE, MALIDP550_DE_LV2_PTR_BASE, MALIDP_DE_LV_STRIDE0, MALIDP550_LV_YUV2RGB, - MALIDP650_DE_LV_MMU_CTRL, ROTATE_ANY }, + MALIDP650_DE_LV_MMU_CTRL, ROTATE_ANY, MALIDP550_DE_LV2_AD_CTRL }, { DE_SMART, MALIDP550_DE_LS_BASE, MALIDP550_DE_LS_PTR_BASE, MALIDP550_DE_LS_R1_STRIDE, 0, MALIDP650_DE_LS_MMU_CTRL, - ROTATE_NONE }, + ROTATE_NONE, 0 }, }; =20 #define SE_N_SCALING_COEFFS 96 diff --git a/drivers/gpu/drm/arm/malidp_hw.h b/drivers/gpu/drm/arm/malidp_h= w.h index 40155e2..651558f 100644 --- a/drivers/gpu/drm/arm/malidp_hw.h +++ b/drivers/gpu/drm/arm/malidp_hw.h @@ -70,6 +70,8 @@ struct malidp_layer { s16 yuv2rgb_offset; /* offset to the YUV->RGB matrix entries */ u16 mmu_ctrl_offset; /* offset to the MMU control register */ enum rotation_features rot; /* type of rotation supported */ + /* address offset for the AFBC decoder registers */ + u16 afbc_decoder_offset; }; =20 enum malidp_scaling_coeff_set { diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/mali= dp_planes.c index c9a6d3e..cd60f73 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -592,6 +592,80 @@ static void malidp_de_set_mmu_control(struct malidp_pl= ane *mp, mp->layer->base + mp->layer->mmu_ctrl_offset); } =20 +static void malidp_set_plane_base_addr(struct drm_framebuffer *fb, + struct malidp_plane *mp, + int plane_index) +{ + dma_addr_t paddr; + u16 ptr; + struct drm_plane *plane =3D &mp->base; + bool afbc =3D fb->modifier ? true : false; + + ptr =3D mp->layer->ptr + (plane_index << 4); + + /* + * For AFBC buffers, cropping is handled by AFBC decoder rather than + * pointer manipulation. + */ + if (!afbc) { + paddr =3D drm_fb_cma_get_gem_addr(fb, plane->state, + plane_index); + } else { + struct drm_gem_cma_object *obj; + + obj =3D drm_fb_cma_get_gem_obj(fb, plane_index); + + if (WARN_ON(!obj)) + return; + paddr =3D obj->paddr; + } + + malidp_hw_write(mp->hwdev, lower_32_bits(paddr), ptr); + malidp_hw_write(mp->hwdev, upper_32_bits(paddr), ptr + 4); +} + +static void malidp_de_set_plane_afbc(struct drm_plane *plane) +{ + struct malidp_plane *mp; + u32 src_w, src_h, val =3D 0, src_x, src_y; + struct drm_framebuffer *fb =3D plane->state->fb; + + mp =3D to_malidp_plane(plane); + + /* no afbc_decoder_offset means AFBC is not supported on this plane */ + if (!mp->layer->afbc_decoder_offset) + return; + + if (!fb->modifier) { + malidp_hw_write(mp->hwdev, 0, mp->layer->afbc_decoder_offset); + return; + } + + /* convert src values from Q16 fixed point to integer */ + src_w =3D plane->state->src_w >> 16; + src_h =3D plane->state->src_h >> 16; + src_x =3D plane->state->src_x >> 16; + src_y =3D plane->state->src_y >> 16; + + val =3D ((fb->width - (src_x + src_w)) << MALIDP_AD_CROP_RIGHT_OFFSET) | + src_x; + malidp_hw_write(mp->hwdev, val, + mp->layer->afbc_decoder_offset + MALIDP_AD_CROP_H); + + val =3D ((fb->height - (src_y + src_h)) << MALIDP_AD_CROP_BOTTOM_OFFSET) = | + src_y; + malidp_hw_write(mp->hwdev, val, + mp->layer->afbc_decoder_offset + MALIDP_AD_CROP_V); + + val =3D MALIDP_AD_EN; + if (fb->modifier & AFBC_FORMAT_MOD_SPLIT) + val |=3D MALIDP_AD_BS; + if (fb->modifier & AFBC_FORMAT_MOD_YTR) + val |=3D MALIDP_AD_YTR; + + malidp_hw_write(mp->hwdev, val, mp->layer->afbc_decoder_offset); +} + static void malidp_de_plane_update(struct drm_plane *plane, struct drm_plane_state *old_state) { @@ -600,30 +674,33 @@ static void malidp_de_plane_update(struct drm_plane *= plane, struct drm_plane_state *state =3D plane->state; u16 pixel_alpha =3D state->pixel_blend_mode; u8 plane_alpha =3D state->alpha >> 8; + bool format_has_alpha =3D state->fb->format->has_alpha; u32 src_w, src_h, dest_w, dest_h, val; int i; + struct drm_framebuffer *fb =3D plane->state->fb; =20 mp =3D to_malidp_plane(plane); =20 - /* convert src values from Q16 fixed point to integer */ - src_w =3D state->src_w >> 16; - src_h =3D state->src_h >> 16; - dest_w =3D state->crtc_w; - dest_h =3D state->crtc_h; + /* For AFBC framebuffer, use the framebuffer width and height for configu= ring + * layer input size register. + */ + if (fb->modifier) { + src_w =3D fb->width; + src_h =3D fb->height; + } else { + /* convert src values from Q16 fixed point to integer */ + src_w =3D ms->base.src_w >> 16; + src_h =3D ms->base.src_h >> 16; + } + dest_w =3D ms->base.crtc_w; + dest_h =3D ms->base.crtc_h; =20 val =3D malidp_hw_read(mp->hwdev, mp->layer->base); val =3D (val & ~LAYER_FORMAT_MASK) | ms->format; malidp_hw_write(mp->hwdev, val, mp->layer->base); =20 - for (i =3D 0; i < ms->n_planes; i++) { - /* calculate the offset for the layer's plane registers */ - u16 ptr =3D mp->layer->ptr + (i << 4); - dma_addr_t fb_addr =3D drm_fb_cma_get_gem_addr(state->fb, - state, i); - - malidp_hw_write(mp->hwdev, lower_32_bits(fb_addr), ptr); - malidp_hw_write(mp->hwdev, upper_32_bits(fb_addr), ptr + 4); - } + for (i =3D 0; i < ms->n_planes; i++) + malidp_set_plane_base_addr(fb, mp, i); =20 malidp_de_set_mmu_control(mp, ms); =20 @@ -657,6 +734,8 @@ static void malidp_de_plane_update(struct drm_plane *pl= ane, mp->layer->base + MALIDP550_LS_R1_IN_SIZE); } =20 + malidp_de_set_plane_afbc(plane); + /* first clear the rotation bits */ val =3D malidp_hw_read(mp->hwdev, mp->layer->base + MALIDP_LAYER_CONTROL)= ; val &=3D ~LAYER_ROT_MASK; @@ -674,7 +753,7 @@ static void malidp_de_plane_update(struct drm_plane *pl= ane, =20 if (state->alpha !=3D DRM_BLEND_ALPHA_OPAQUE) { val |=3D LAYER_COMP_PLANE; - } else if (state->fb->format->has_alpha) { + } else if (format_has_alpha) { /* We only care about blend mode if the format has alpha */ switch (pixel_alpha) { case DRM_MODE_BLEND_PREMULTI: diff --git a/drivers/gpu/drm/arm/malidp_regs.h b/drivers/gpu/drm/arm/malidp= _regs.h index 7ce3e14..a0dd6e1 100644 --- a/drivers/gpu/drm/arm/malidp_regs.h +++ b/drivers/gpu/drm/arm/malidp_regs.h @@ -198,10 +198,13 @@ #define MALIDP500_LV_YUV2RGB ((s16)(-0xB8)) #define MALIDP500_DE_LV_BASE 0x00100 #define MALIDP500_DE_LV_PTR_BASE 0x00124 +#define MALIDP500_DE_LV_AD_CTRL 0x00400 #define MALIDP500_DE_LG1_BASE 0x00200 #define MALIDP500_DE_LG1_PTR_BASE 0x0021c +#define MALIDP500_DE_LG1_AD_CTRL 0x0040c #define MALIDP500_DE_LG2_BASE 0x00300 #define MALIDP500_DE_LG2_PTR_BASE 0x0031c +#define MALIDP500_DE_LG2_AD_CTRL 0x00418 #define MALIDP500_SE_BASE 0x00c00 #define MALIDP500_SE_CONTROL 0x00c0c #define MALIDP500_SE_MEMWRITE_OUT_SIZE 0x00c2c @@ -228,10 +231,13 @@ #define MALIDP550_LV_YUV2RGB 0x00084 #define MALIDP550_DE_LV1_BASE 0x00100 #define MALIDP550_DE_LV1_PTR_BASE 0x00124 +#define MALIDP550_DE_LV1_AD_CTRL 0x001B8 #define MALIDP550_DE_LV2_BASE 0x00200 #define MALIDP550_DE_LV2_PTR_BASE 0x00224 +#define MALIDP550_DE_LV2_AD_CTRL 0x002B8 #define MALIDP550_DE_LG_BASE 0x00300 #define MALIDP550_DE_LG_PTR_BASE 0x0031c +#define MALIDP550_DE_LG_AD_CTRL 0x00330 #define MALIDP550_DE_LS_BASE 0x00400 #define MALIDP550_DE_LS_PTR_BASE 0x0042c #define MALIDP550_DE_PERF_BASE 0x00500 @@ -258,6 +264,20 @@ #define MALIDP_MMU_CTRL_PX_PS(x) (1 << (8 + (x))) #define MALIDP_MMU_CTRL_PP_NUM_REQ(x) (((x) & 0x7f) << 12) =20 +/* AFBC register offsets relative to MALIDPXXX_DE_LX_AD_CTRL */ +/* The following register offsets are common for DP500, DP550 and DP650 */ +#define MALIDP_AD_CROP_H 0x4 +#define MALIDP_AD_CROP_V 0x8 +#define MALIDP_AD_END_PTR_LOW 0xc +#define MALIDP_AD_END_PTR_HIGH 0x10 + +/* AFBC decoder Registers */ +#define MALIDP_AD_EN BIT(0) +#define MALIDP_AD_YTR BIT(4) +#define MALIDP_AD_BS BIT(8) +#define MALIDP_AD_CROP_RIGHT_OFFSET 16 +#define MALIDP_AD_CROP_BOTTOM_OFFSET 16 + /* * Starting with DP550 the register map blocks has been standardised to th= e * following layout: --=20 2.7.4