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Wed, 23 Oct 2024 09:50:31 -0700 (PDT) From: Dave Stevenson Date: Wed, 23 Oct 2024 17:50:20 +0100 Subject: [PATCH 23/37] drm/vc4: drv: Add support for 2712 D-step MIME-Version: 1.0 Message-Id: <20241023-drm-vc4-2712-support-v1-23-1cc2d5594907@raspberrypi.com> References: <20241023-drm-vc4-2712-support-v1-0-1cc2d5594907@raspberrypi.com> In-Reply-To: <20241023-drm-vc4-2712-support-v1-0-1cc2d5594907@raspberrypi.com> To: Maxime Ripard , =?utf-8?q?Ma=C3=ADra_Canal?= , Raspberry Pi Kernel Maintenance , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , Ray Jui , Scott Branden , Michael Turquette , Stephen Boyd , Javier Martinez Canillas , Catalin Marinas , Will Deacon Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Dave Stevenson X-Mailer: b4 0.14.1 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add in the compatible string and VC4_GEN_ enum for the D-step Signed-off-by: Dave Stevenson Reviewed-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_drv.c | 1 + drivers/gpu/drm/vc4/vc4_drv.h | 1 + drivers/gpu/drm/vc4/vc4_hvs.c | 4 ++++ drivers/gpu/drm/vc4/vc4_regs.h | 3 +++ 4 files changed, 9 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 94e01ce2b1ef..fb91e771e345 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -466,6 +466,7 @@ static void vc4_platform_drm_shutdown(struct platform_device *pdev) static const struct of_device_id vc4_of_match[] = { { .compatible = "brcm,bcm2711-vc5", .data = (void *)VC4_GEN_5 }, + /* NB GEN_6_C will be corrected on D0 hw to GEN_6_D via vc4_hvs_bind */ { .compatible = "brcm,bcm2712-vc6", .data = (void *)VC4_GEN_6_C }, { .compatible = "brcm,bcm2835-vc4", .data = (void *)VC4_GEN_4 }, { .compatible = "brcm,cygnus-vc4", .data = (void *)VC4_GEN_4 }, diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index de2107e593c2..e3983a44e35e 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -85,6 +85,7 @@ enum vc4_gen { VC4_GEN_4, VC4_GEN_5, VC4_GEN_6_C, + VC4_GEN_6_D, }; struct vc4_dev { diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c index 5606ded928e4..b698f7070510 100644 --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -1532,6 +1532,10 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) if (vc4->gen >= VC4_GEN_6_C) { hvs->regset.regs = vc6_hvs_regs; hvs->regset.nregs = ARRAY_SIZE(vc6_hvs_regs); + + if (VC4_GET_FIELD(HVS_READ(SCALER6_VERSION), SCALER6_VERSION) == + SCALER6_VERSION_D0) + vc4->gen = VC4_GEN_6_D; } else { hvs->regset.regs = vc4_hvs_regs; hvs->regset.nregs = ARRAY_SIZE(vc4_hvs_regs); diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index 731b13742ef5..df44a4a4009f 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -527,6 +527,9 @@ #define SCALER5_DLIST_START 0x00004000 #define SCALER6_VERSION 0x00000000 +# define SCALER6_VERSION_MASK VC4_MASK(7, 0) +# define SCALER6_VERSION_C0 0x00000053 +# define SCALER6_VERSION_D0 0x00000054 #define SCALER6_CXM_SIZE 0x00000004 #define SCALER6_LBM_SIZE 0x00000008 #define SCALER6_UBM_SIZE 0x0000000c