From 9b554980591251a37d4473b4d1c951362473a129 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Thu, 22 Feb 2018 00:28:39 +0100 Subject: [PATCH] radeonsi: properly extract a buffer address from a descriptor --- src/gallium/drivers/radeonsi/si_descriptors.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/radeonsi/si_descriptors.c b/src/gallium/drivers/radeonsi/si_descriptors.c index e6c58ffca78..b6e767c2546 100644 --- a/src/gallium/drivers/radeonsi/si_descriptors.c +++ b/src/gallium/drivers/radeonsi/si_descriptors.c @@ -96,7 +96,13 @@ static uint32_t null_image_descriptor[8] = { static uint64_t si_desc_extract_buffer_address(uint32_t *desc) { - return desc[0] | ((uint64_t)G_008F04_BASE_ADDRESS_HI(desc[1]) << 32); + uint64_t va = desc[0] | + ((uint64_t)G_008F04_BASE_ADDRESS_HI(desc[1]) << 32); + + /* Sign-extend the 48-bit address. */ + if (va & (1ull << 47)) + va |= 0xffffull << 48; + return va; } static void si_init_descriptor_list(uint32_t *desc_list, -- 2.30.2