Module Name: src Committed By: martin Date: Fri Jan 31 11:28:38 UTC 2020
Modified Files: src/sys/external/bsd/drm2/dist/drm/i915 [netbsd-9]: i915_gem_stolen.c i915_reg.h src/sys/external/bsd/drm2/dist/drm/radeon [netbsd-9]: radeon_atombios_dp.c Log Message: Pull up following revision(s) (requested by msaitoh in ticket #678): sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c: revision 1.12 sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c: revision 1.2 sys/external/bsd/drm2/dist/drm/i915/i915_reg.h: revision 1.9 sys/external/bsd/drm2/dist/drm/i915/i915_reg.h: revision 1.12 Use unsigned to avoid undefined behavior in gen7_get_stolen_reserved(). Found by kUBSan. Use unsigned to avoid undefined behavior in g4x_update_wm(). Avoid undefined behavior in g4x_get_stolen_reserved(). The change is the same as newer i915_gem_stolen.c. Don't call memcpy() when the length is 0 (and the source pointer is NULL) in radeon_dp_aux_transfer_atom() to avoid undefined behavior. Found by kUBSan. To generate a diff of this commit: cvs rdiff -u -r1.11 -r1.11.4.1 \ src/sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c cvs rdiff -u -r1.7.2.2 -r1.7.2.3 \ src/sys/external/bsd/drm2/dist/drm/i915/i915_reg.h cvs rdiff -u -r1.1 -r1.1.8.1 \ src/sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c diff -u src/sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c:1.11 src/sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c:1.11.4.1 --- src/sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c:1.11 Thu Sep 13 08:25:55 2018 +++ src/sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c Fri Jan 31 11:28:38 2020 @@ -1,4 +1,4 @@ -/* $NetBSD: i915_gem_stolen.c,v 1.11 2018/09/13 08:25:55 mrg Exp $ */ +/* $NetBSD: i915_gem_stolen.c,v 1.11.4.1 2020/01/31 11:28:38 martin Exp $ */ /* * Copyright © 2008-2012 Intel Corporation @@ -29,7 +29,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: i915_gem_stolen.c,v 1.11 2018/09/13 08:25:55 mrg Exp $"); +__KERNEL_RCSID(0, "$NetBSD: i915_gem_stolen.c,v 1.11.4.1 2020/01/31 11:28:38 martin Exp $"); #include <linux/printk.h> #include <linux/err.h> @@ -308,18 +308,13 @@ static void g4x_get_stolen_reserved(stru unsigned long stolen_top = dev_priv->mm.stolen_base + dev_priv->gtt.stolen_size; - *base = (reg_val & G4X_STOLEN_RESERVED_ADDR2_MASK) << 16; + if (!(reg_val & G4X_STOLEN_RESERVED_ADDR2_MASK)) + return; + *base = (reg_val & G4X_STOLEN_RESERVED_ADDR2_MASK) << 16; WARN_ON((reg_val & G4X_STOLEN_RESERVED_ADDR1_MASK) < *base); - /* On these platforms, the register doesn't have a size field, so the - * size is the distance between the base and the top of the stolen - * memory. We also have the genuine case where base is zero and there's - * nothing reserved. */ - if (*base == 0) - *size = 0; - else - *size = stolen_top - *base; + *size = stolen_top - *base; } static void gen6_get_stolen_reserved(struct drm_i915_private *dev_priv, Index: src/sys/external/bsd/drm2/dist/drm/i915/i915_reg.h diff -u src/sys/external/bsd/drm2/dist/drm/i915/i915_reg.h:1.7.2.2 src/sys/external/bsd/drm2/dist/drm/i915/i915_reg.h:1.7.2.3 --- src/sys/external/bsd/drm2/dist/drm/i915/i915_reg.h:1.7.2.2 Fri Jan 31 11:25:09 2020 +++ src/sys/external/bsd/drm2/dist/drm/i915/i915_reg.h Fri Jan 31 11:28:38 2020 @@ -1,4 +1,4 @@ -/* $NetBSD: i915_reg.h,v 1.7.2.2 2020/01/31 11:25:09 martin Exp $ */ +/* $NetBSD: i915_reg.h,v 1.7.2.3 2020/01/31 11:28:38 martin Exp $ */ /* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. @@ -187,7 +187,7 @@ #define GEN6_STOLEN_RESERVED 0x1082C0 #define GEN6_STOLEN_RESERVED_ADDR_MASK (0xFFFUL << 20) -#define GEN7_STOLEN_RESERVED_ADDR_MASK (0x3FFF << 18) +#define GEN7_STOLEN_RESERVED_ADDR_MASK (0x3FFFUL << 18) #define GEN6_STOLEN_RESERVED_SIZE_MASK (3 << 4) #define GEN6_STOLEN_RESERVED_1M (0 << 4) #define GEN6_STOLEN_RESERVED_512K (1 << 4) @@ -4616,7 +4616,7 @@ enum skl_disp_power_wells { #define DSPFW_SPRITEA_MASK (0x7f<<0) /* g4x */ #define DSPFW_SPRITEA_MASK_VLV (0xff<<0) /* vlv/chv */ #define DSPFW3 (dev_priv->info.display_mmio_offset + 0x7003c) -#define DSPFW_HPLL_SR_EN (1<<31) +#define DSPFW_HPLL_SR_EN (1U<<31) #define PINEVIEW_SELF_REFRESH_EN (1<<30) #define DSPFW_CURSOR_SR_SHIFT 24 #define DSPFW_CURSOR_SR_MASK (0x3f<<24) Index: src/sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c diff -u src/sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c:1.1 src/sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c:1.1.8.1 --- src/sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c:1.1 Mon Aug 27 14:38:20 2018 +++ src/sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c Fri Jan 31 11:28:38 2020 @@ -1,4 +1,4 @@ -/* $NetBSD: radeon_atombios_dp.c,v 1.1 2018/08/27 14:38:20 riastradh Exp $ */ +/* $NetBSD: radeon_atombios_dp.c,v 1.1.8.1 2020/01/31 11:28:38 martin Exp $ */ /* * Copyright 2007-8 Advanced Micro Devices, Inc. @@ -27,7 +27,7 @@ * Jerome Glisse */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: radeon_atombios_dp.c,v 1.1 2018/08/27 14:38:20 riastradh Exp $"); +__KERNEL_RCSID(0, "$NetBSD: radeon_atombios_dp.c,v 1.1.8.1 2020/01/31 11:28:38 martin Exp $"); #include <drm/drmP.h> #include <drm/radeon_drm.h> @@ -196,9 +196,10 @@ radeon_dp_aux_transfer_atom(struct drm_d tx_size = HEADER_SIZE + msg->size; if (msg->size == 0) tx_buf[3] |= BARE_ADDRESS_SIZE << 4; - else + else { tx_buf[3] |= tx_size << 4; - memcpy(tx_buf + HEADER_SIZE, msg->buffer, msg->size); + memcpy(tx_buf + HEADER_SIZE, msg->buffer, msg->size); + } ret = radeon_process_aux_ch(chan, tx_buf, tx_size, NULL, 0, delay, &ack); if (ret >= 0)