From: Ben Goz <ben.goz@xxxxxxx>
This patch adds support for the VI APU in the DQM module.
Most of the functionality of DQM is shared between CI and VI. Therefore,
only a handful of functions are required to be in the
H/W-specific part of DQM.
Signed-off-by: Ben Goz <ben.goz@xxxxxxx>
Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxxxx>
---
.../drm/amd/amdkfd/kfd_device_queue_manager_vi.c | 103 ++++++++++++++++++++-
1 file changed, 99 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c
index 4c15212..44c38e8 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c
@@ -22,6 +22,10 @@
*/
#include "kfd_device_queue_manager.h"
+#include "gca/gfx_8_0_enum.h"
+#include "gca/gfx_8_0_sh_mask.h"
+#include "gca/gfx_8_0_enum.h"
+#include "oss/oss_3_0_sh_mask.h"
static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm,
struct qcm_process_device *qpd,
@@ -37,14 +41,40 @@ static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops)
{
- pr_warn("amdkfd: VI DQM is not currently supported\n");
-
ops->set_cache_memory_policy = set_cache_memory_policy_vi;
ops->register_process = register_process_vi;
ops->initialize = initialize_cpsch_vi;
ops->init_sdma_vm = init_sdma_vm;
}
+static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
+{
+ /* In 64-bit mode, we can only control the top 3 bits of the LDS,
+ * scratch and GPUVM apertures.
+ * The hardware fills in the remaining 59 bits according to the
+ * following pattern:
+ * LDS: X0000000'00000000 - X0000001'00000000 (4GB)
+ * Scratch: X0000001'00000000 - X0000002'00000000 (4GB)
+ * GPUVM: Y0010000'00000000 - Y0020000'00000000 (1TB)
+ *
+ * (where X/Y is the configurable nybble with the low-bit 0)
+ *
+ * LDS and scratch will have the same top nybble programmed in the
+ * top 3 bits of SH_MEM_BASES.PRIVATE_BASE.
+ * GPUVM can have a different top nybble programmed in the
+ * top 3 bits of SH_MEM_BASES.SHARED_BASE.
+ * We don't bother to support different top nybbles
+ * for LDS/Scratch and GPUVM.
+ */
+
+ BUG_ON((top_address_nybble & 1) || top_address_nybble > 0xE ||
+ top_address_nybble == 0);
+
+ return top_address_nybble << 12 |
+ (top_address_nybble << 12) <<
+ SH_MEM_BASES__SHARED_BASE__SHIFT;
+}
+
static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm,
struct qcm_process_device *qpd,
enum cache_policy default_policy,
@@ -52,18 +82,83 @@ static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm,
void __user *alternate_aperture_base,
uint64_t alternate_aperture_size)
{
- return false;
+ uint32_t default_mtype;
+ uint32_t ape1_mtype;
+
+ default_mtype = (default_policy == cache_policy_coherent) ?
+ MTYPE_CC :
+ MTYPE_NC;
+
+ ape1_mtype = (alternate_policy == cache_policy_coherent) ?
+ MTYPE_CC :
+ MTYPE_NC;
+
+ qpd->sh_mem_config = (qpd->sh_mem_config &
+ SH_MEM_CONFIG__ADDRESS_MODE_MASK) |
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
+ SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
+ default_mtype << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
+ ape1_mtype << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
+ SH_MEM_CONFIG__PRIVATE_ATC_MASK;
+
+ return true;
}
static int register_process_vi(struct device_queue_manager *dqm,
struct qcm_process_device *qpd)
{
- return -1;
+ struct kfd_process_device *pdd;
+ unsigned int temp;
+
+ BUG_ON(!dqm || !qpd);
+
+ pdd = qpd_to_pdd(qpd);
+
+ /* check if sh_mem_config register already configured */
+ if (qpd->sh_mem_config == 0) {
+ qpd->sh_mem_config =
+ SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
+ SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
+ MTYPE_CC << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
+ MTYPE_CC << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
+ SH_MEM_CONFIG__PRIVATE_ATC_MASK;
+
+ qpd->sh_mem_ape1_limit = 0;
+ qpd->sh_mem_ape1_base = 0;
+ }
+
+ if (qpd->pqm->process->is_32bit_user_mode) {
+ temp = get_sh_mem_bases_32(pdd);
+ qpd->sh_mem_bases = temp << SH_MEM_BASES__SHARED_BASE__SHIFT;
+ qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA32 <<
+ SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
+ } else {
+ temp = get_sh_mem_bases_nybble_64(pdd);
+ qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
+ qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA64 <<
+ SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
+ }
+
+ pr_debug("kfd: is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n",
+ qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);
+
+ return 0;
}
static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
struct qcm_process_device *qpd)
{
+ uint32_t value = (1 << SDMA0_RLC0_VIRTUAL_ADDR__ATC__SHIFT);
+
+ if (q->process->is_32bit_user_mode)
+ value |= (1 << SDMA0_RLC0_VIRTUAL_ADDR__PTR32__SHIFT) |
+ get_sh_mem_bases_32(qpd_to_pdd(qpd));
+ else
+ value |= ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
+ SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &&
+ SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
+
+ q->properties.sdma_vm_addr = value;
}
static int initialize_cpsch_vi(struct device_queue_manager *dqm)
--
2.4.3
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