From: Eric Anholt Date: Wed, 20 Feb 2019 23:36:57 +0000 (-0800) Subject: drm/v3d: Don't try to set OVRTMUOUT on V3D 4.x. X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a7dde1b7a5c9adf13d422240d02b812952660a35;p=linux.git drm/v3d: Don't try to set OVRTMUOUT on V3D 4.x. The old field is gone and the register now has a different field, QRMAXCNT for how many TMU requests get serviced before thread switch. We were accidentally reducing it from its default of 0x3 (4 requests) to 0x0 (1). v2: Skip setting the reg at all on 4.x, instead of trying to update only the old field. Signed-off-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20190220233658.986-2-eric@anholt.net Reviewed-by: Dave Emett --- diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 0d1e5e0b80421..0a83268dec0c6 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -24,7 +24,8 @@ v3d_init_core(struct v3d_dev *v3d, int core) * type. If you want the default behavior, you can still put * "2" in the indirect texture state's output_type field. */ - V3D_CORE_WRITE(core, V3D_CTL_MISCCFG, V3D_MISCCFG_OVRTMUOUT); + if (v3d->ver < 40) + V3D_CORE_WRITE(core, V3D_CTL_MISCCFG, V3D_MISCCFG_OVRTMUOUT); /* Whenever we flush the L2T cache, we always want to flush * the whole thing. diff --git a/drivers/gpu/drm/v3d/v3d_regs.h b/drivers/gpu/drm/v3d/v3d_regs.h index 6ccdee9d47bd7..8e88af2376108 100644 --- a/drivers/gpu/drm/v3d/v3d_regs.h +++ b/drivers/gpu/drm/v3d/v3d_regs.h @@ -216,6 +216,8 @@ # define V3D_IDENT2_BCG_INT BIT(28) #define V3D_CTL_MISCCFG 0x00018 +# define V3D_CTL_MISCCFG_QRMAXCNT_MASK V3D_MASK(3, 1) +# define V3D_CTL_MISCCFG_QRMAXCNT_SHIFT 1 # define V3D_MISCCFG_OVRTMUOUT BIT(0) #define V3D_CTL_L2CACTL 0x00020